Mercurial > vim
annotate src/memline.c @ 14980:c98810dfebaf v8.1.0501
patch 8.1.0501: cppcheck warns for using array index before bounds check
commit https://github.com/vim/vim/commit/a9a8e04eab106c1d21381f79f8965fe50b94e235
Author: Bram Moolenaar <Bram@vim.org>
Date: Tue Oct 30 22:15:55 2018 +0100
patch 8.1.0501: cppcheck warns for using array index before bounds check
Problem: Cppcheck warns for using array index before bounds check.
Solution: Swap the conditions. (Dominique Pelle)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Tue, 30 Oct 2018 22:30:07 +0100 |
| parents | 95400980f7c9 |
| children | 9df130fd5e0d |
| rev | line source |
|---|---|
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 | |
| 10 /* for debugging */ | |
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11 /* #define CHECK(c, s) do { if (c) EMSG(s); } while (0) */ |
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12 #define CHECK(c, s) do { /**/ } while (0) |
| 7 | 13 |
| 14 /* | |
| 15 * memline.c: Contains the functions for appending, deleting and changing the | |
| 625 | 16 * text lines. The memfile functions are used to store the information in |
| 17 * blocks of memory, backed up by a file. The structure of the information is | |
| 18 * a tree. The root of the tree is a pointer block. The leaves of the tree | |
| 19 * are data blocks. In between may be several layers of pointer blocks, | |
| 20 * forming branches. | |
| 7 | 21 * |
| 22 * Three types of blocks are used: | |
| 23 * - Block nr 0 contains information for recovery | |
| 24 * - Pointer blocks contain list of pointers to other blocks. | |
| 25 * - Data blocks contain the actual text. | |
| 26 * | |
| 27 * Block nr 0 contains the block0 structure (see below). | |
| 28 * | |
| 29 * Block nr 1 is the first pointer block. It is the root of the tree. | |
| 30 * Other pointer blocks are branches. | |
| 31 * | |
| 32 * If a line is too big to fit in a single page, the block containing that | |
| 33 * line is made big enough to hold the line. It may span several pages. | |
| 34 * Otherwise all blocks are one page. | |
| 35 * | |
| 36 * A data block that was filled when starting to edit a file and was not | |
| 37 * changed since then, can have a negative block number. This means that it | |
| 38 * has not yet been assigned a place in the file. When recovering, the lines | |
| 39 * in this data block can be read from the original file. When the block is | |
| 40 * changed (lines appended/deleted/changed) or when it is flushed it gets a | |
| 41 * positive number. Use mf_trans_del() to get the new number, before calling | |
| 42 * mf_get(). | |
| 43 */ | |
| 44 | |
| 45 #include "vim.h" | |
| 46 | |
| 47 #ifndef UNIX /* it's in os_unix.h for Unix */ | |
| 48 # include <time.h> | |
| 49 #endif | |
| 50 | |
| 1030 | 51 #if defined(SASC) || defined(__amigaos4__) |
| 7 | 52 # include <proto/dos.h> /* for Open() and Close() */ |
| 53 #endif | |
| 54 | |
| 55 typedef struct block0 ZERO_BL; /* contents of the first block */ | |
| 56 typedef struct pointer_block PTR_BL; /* contents of a pointer block */ | |
| 57 typedef struct data_block DATA_BL; /* contents of a data block */ | |
| 58 typedef struct pointer_entry PTR_EN; /* block/line-count pair */ | |
| 59 | |
| 2267 | 60 #define DATA_ID (('d' << 8) + 'a') /* data block id */ |
| 61 #define PTR_ID (('p' << 8) + 't') /* pointer block id */ | |
| 62 #define BLOCK0_ID0 'b' /* block 0 id 0 */ | |
| 63 #define BLOCK0_ID1 '0' /* block 0 id 1 */ | |
| 64 #define BLOCK0_ID1_C0 'c' /* block 0 id 1 'cm' 0 */ | |
| 65 #define BLOCK0_ID1_C1 'C' /* block 0 id 1 'cm' 1 */ | |
| 6122 | 66 #define BLOCK0_ID1_C2 'd' /* block 0 id 1 'cm' 2 */ |
| 67 | |
| 68 #if defined(FEAT_CRYPT) | |
| 69 static int id1_codes[] = { | |
| 70 BLOCK0_ID1_C0, /* CRYPT_M_ZIP */ | |
| 71 BLOCK0_ID1_C1, /* CRYPT_M_BF */ | |
| 72 BLOCK0_ID1_C2, /* CRYPT_M_BF2 */ | |
| 73 }; | |
| 74 #endif | |
| 7 | 75 |
| 76 /* | |
| 77 * pointer to a block, used in a pointer block | |
| 78 */ | |
| 79 struct pointer_entry | |
| 80 { | |
| 81 blocknr_T pe_bnum; /* block number */ | |
| 82 linenr_T pe_line_count; /* number of lines in this branch */ | |
| 83 linenr_T pe_old_lnum; /* lnum for this block (for recovery) */ | |
| 84 int pe_page_count; /* number of pages in block pe_bnum */ | |
| 85 }; | |
| 86 | |
| 87 /* | |
| 88 * A pointer block contains a list of branches in the tree. | |
| 89 */ | |
| 90 struct pointer_block | |
| 91 { | |
| 92 short_u pb_id; /* ID for pointer block: PTR_ID */ | |
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93 short_u pb_count; /* number of pointers in this block */ |
| 7 | 94 short_u pb_count_max; /* maximum value for pb_count */ |
| 95 PTR_EN pb_pointer[1]; /* list of pointers to blocks (actually longer) | |
| 96 * followed by empty space until end of page */ | |
| 97 }; | |
| 98 | |
| 99 /* | |
| 100 * A data block is a leaf in the tree. | |
| 101 * | |
| 102 * The text of the lines is at the end of the block. The text of the first line | |
| 103 * in the block is put at the end, the text of the second line in front of it, | |
| 104 * etc. Thus the order of the lines is the opposite of the line number. | |
| 105 */ | |
| 106 struct data_block | |
| 107 { | |
| 108 short_u db_id; /* ID for data block: DATA_ID */ | |
| 109 unsigned db_free; /* free space available */ | |
| 110 unsigned db_txt_start; /* byte where text starts */ | |
| 111 unsigned db_txt_end; /* byte just after data block */ | |
| 112 linenr_T db_line_count; /* number of lines in this block */ | |
| 113 unsigned db_index[1]; /* index for start of line (actually bigger) | |
| 114 * followed by empty space upto db_txt_start | |
| 115 * followed by the text in the lines until | |
| 116 * end of page */ | |
| 117 }; | |
| 118 | |
| 119 /* | |
| 120 * The low bits of db_index hold the actual index. The topmost bit is | |
| 121 * used for the global command to be able to mark a line. | |
| 122 * This method is not clean, but otherwise there would be at least one extra | |
| 123 * byte used for each line. | |
| 124 * The mark has to be in this place to keep it with the correct line when other | |
| 125 * lines are inserted or deleted. | |
| 126 */ | |
| 127 #define DB_MARKED ((unsigned)1 << ((sizeof(unsigned) * 8) - 1)) | |
| 128 #define DB_INDEX_MASK (~DB_MARKED) | |
| 129 | |
| 130 #define INDEX_SIZE (sizeof(unsigned)) /* size of one db_index entry */ | |
| 131 #define HEADER_SIZE (sizeof(DATA_BL) - INDEX_SIZE) /* size of data block header */ | |
| 132 | |
| 39 | 133 #define B0_FNAME_SIZE_ORG 900 /* what it was in older versions */ |
| 2267 | 134 #define B0_FNAME_SIZE_NOCRYPT 898 /* 2 bytes used for other things */ |
| 135 #define B0_FNAME_SIZE_CRYPT 890 /* 10 bytes used for other things */ | |
| 39 | 136 #define B0_UNAME_SIZE 40 |
| 137 #define B0_HNAME_SIZE 40 | |
| 7 | 138 /* |
| 139 * Restrict the numbers to 32 bits, otherwise most compilers will complain. | |
| 140 * This won't detect a 64 bit machine that only swaps a byte in the top 32 | |
| 141 * bits, but that is crazy anyway. | |
| 142 */ | |
| 143 #define B0_MAGIC_LONG 0x30313233L | |
| 144 #define B0_MAGIC_INT 0x20212223L | |
| 145 #define B0_MAGIC_SHORT 0x10111213L | |
| 146 #define B0_MAGIC_CHAR 0x55 | |
| 147 | |
| 148 /* | |
| 149 * Block zero holds all info about the swap file. | |
| 150 * | |
| 151 * NOTE: DEFINITION OF BLOCK 0 SHOULD NOT CHANGE! It would make all existing | |
| 152 * swap files unusable! | |
| 153 * | |
| 154 * If size of block0 changes anyway, adjust MIN_SWAP_PAGE_SIZE in vim.h!! | |
| 155 * | |
| 1228 | 156 * This block is built up of single bytes, to make it portable across |
| 7 | 157 * different machines. b0_magic_* is used to check the byte order and size of |
| 158 * variables, because the rest of the swap file is not portable. | |
| 159 */ | |
| 160 struct block0 | |
| 161 { | |
| 2267 | 162 char_u b0_id[2]; /* id for block 0: BLOCK0_ID0 and BLOCK0_ID1, |
| 6122 | 163 * BLOCK0_ID1_C0, BLOCK0_ID1_C1, etc. */ |
| 7 | 164 char_u b0_version[10]; /* Vim version string */ |
| 165 char_u b0_page_size[4];/* number of bytes per page */ | |
| 166 char_u b0_mtime[4]; /* last modification time of file */ | |
| 167 char_u b0_ino[4]; /* inode of b0_fname */ | |
| 168 char_u b0_pid[4]; /* process id of creator (or 0) */ | |
| 169 char_u b0_uname[B0_UNAME_SIZE]; /* name of user (uid if no name) */ | |
| 170 char_u b0_hname[B0_HNAME_SIZE]; /* host name (if it has a name) */ | |
| 39 | 171 char_u b0_fname[B0_FNAME_SIZE_ORG]; /* name of file being edited */ |
| 7 | 172 long b0_magic_long; /* check for byte order of long */ |
| 173 int b0_magic_int; /* check for byte order of int */ | |
| 174 short b0_magic_short; /* check for byte order of short */ | |
| 175 char_u b0_magic_char; /* check for last char */ | |
| 176 }; | |
| 39 | 177 |
| 178 /* | |
| 625 | 179 * Note: b0_dirty and b0_flags are put at the end of the file name. For very |
| 39 | 180 * long file names in older versions of Vim they are invalid. |
| 181 * The 'fileencoding' comes before b0_flags, with a NUL in front. But only | |
| 182 * when there is room, for very long file names it's omitted. | |
| 183 */ | |
| 184 #define B0_DIRTY 0x55 | |
| 2267 | 185 #define b0_dirty b0_fname[B0_FNAME_SIZE_ORG - 1] |
| 39 | 186 |
| 187 /* | |
| 188 * The b0_flags field is new in Vim 7.0. | |
| 189 */ | |
| 2267 | 190 #define b0_flags b0_fname[B0_FNAME_SIZE_ORG - 2] |
| 191 | |
| 192 /* | |
| 193 * Crypt seed goes here, 8 bytes. New in Vim 7.3. | |
| 194 * Without encryption these bytes may be used for 'fenc'. | |
| 195 */ | |
| 196 #define b0_seed b0_fname[B0_FNAME_SIZE_ORG - 2 - MF_SEED_LEN] | |
| 39 | 197 |
| 198 /* The lowest two bits contain the fileformat. Zero means it's not set | |
| 199 * (compatible with Vim 6.x), otherwise it's EOL_UNIX + 1, EOL_DOS + 1 or | |
| 200 * EOL_MAC + 1. */ | |
| 201 #define B0_FF_MASK 3 | |
| 202 | |
| 203 /* Swap file is in directory of edited file. Used to find the file from | |
| 204 * different mount points. */ | |
| 205 #define B0_SAME_DIR 4 | |
| 206 | |
| 207 /* The 'fileencoding' is at the end of b0_fname[], with a NUL in front of it. | |
| 208 * When empty there is only the NUL. */ | |
| 209 #define B0_HAS_FENC 8 | |
| 7 | 210 |
| 211 #define STACK_INCR 5 /* nr of entries added to ml_stack at a time */ | |
| 212 | |
| 213 /* | |
| 214 * The line number where the first mark may be is remembered. | |
| 215 * If it is 0 there are no marks at all. | |
| 216 * (always used for the current buffer only, no buffer change possible while | |
| 217 * executing a global command). | |
| 218 */ | |
| 219 static linenr_T lowest_marked = 0; | |
| 220 | |
| 221 /* | |
| 222 * arguments for ml_find_line() | |
| 223 */ | |
| 224 #define ML_DELETE 0x11 /* delete line */ | |
| 225 #define ML_INSERT 0x12 /* insert line */ | |
| 226 #define ML_FIND 0x13 /* just find the line */ | |
| 227 #define ML_FLUSH 0x02 /* flush locked block */ | |
| 228 #define ML_SIMPLE(x) (x & 0x10) /* DEL, INS or FIND */ | |
| 229 | |
| 2267 | 230 /* argument for ml_upd_block0() */ |
| 231 typedef enum { | |
| 232 UB_FNAME = 0 /* update timestamp and filename */ | |
| 233 , UB_SAME_DIR /* update the B0_SAME_DIR flag */ | |
| 234 , UB_CRYPT /* update crypt key */ | |
| 235 } upd_block0_T; | |
| 236 | |
| 237 #ifdef FEAT_CRYPT | |
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238 static void ml_set_b0_crypt(buf_T *buf, ZERO_BL *b0p); |
| 2267 | 239 #endif |
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240 static void ml_upd_block0(buf_T *buf, upd_block0_T what); |
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241 static void set_b0_fname(ZERO_BL *, buf_T *buf); |
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242 static void set_b0_dir_flag(ZERO_BL *b0p, buf_T *buf); |
| 39 | 243 #ifdef FEAT_MBYTE |
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244 static void add_b0_fenc(ZERO_BL *b0p, buf_T *buf); |
| 39 | 245 #endif |
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246 static time_t swapfile_info(char_u *); |
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247 static int recov_file_names(char_u **, char_u *, int prepend_dot); |
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248 static int ml_append_int(buf_T *, linenr_T, char_u *, colnr_T, int, int); |
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249 static int ml_delete_int(buf_T *, linenr_T, int); |
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250 static char_u *findswapname(buf_T *, char_u **, char_u *); |
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251 static void ml_flush_line(buf_T *); |
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252 static bhdr_T *ml_new_data(memfile_T *, int, int); |
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253 static bhdr_T *ml_new_ptr(memfile_T *); |
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254 static bhdr_T *ml_find_line(buf_T *, linenr_T, int); |
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255 static int ml_add_stack(buf_T *); |
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256 static void ml_lineadd(buf_T *, int); |
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257 static int b0_magic_wrong(ZERO_BL *); |
| 7 | 258 #ifdef CHECK_INODE |
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259 static int fnamecmp_ino(char_u *, char_u *, long); |
| 7 | 260 #endif |
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261 static void long_to_char(long, char_u *); |
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262 static long char_to_long(char_u *); |
| 2267 | 263 #ifdef FEAT_CRYPT |
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264 static cryptstate_T *ml_crypt_prepare(memfile_T *mfp, off_T offset, int reading); |
| 2267 | 265 #endif |
| 7 | 266 #ifdef FEAT_BYTEOFF |
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267 static void ml_updatechunk(buf_T *buf, long line, long len, int updtype); |
| 7 | 268 #endif |
| 269 | |
| 270 /* | |
| 625 | 271 * Open a new memline for "buf". |
| 7 | 272 * |
| 625 | 273 * Return FAIL for failure, OK otherwise. |
| 7 | 274 */ |
| 275 int | |
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276 ml_open(buf_T *buf) |
| 7 | 277 { |
| 278 memfile_T *mfp; | |
| 279 bhdr_T *hp = NULL; | |
| 280 ZERO_BL *b0p; | |
| 281 PTR_BL *pp; | |
| 282 DATA_BL *dp; | |
| 283 | |
| 625 | 284 /* |
| 285 * init fields in memline struct | |
| 286 */ | |
| 2267 | 287 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 625 | 288 buf->b_ml.ml_stack = NULL; /* no stack yet */ |
| 289 buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ | |
| 290 buf->b_ml.ml_locked = NULL; /* no cached block */ | |
| 291 buf->b_ml.ml_line_lnum = 0; /* no cached line */ | |
| 7 | 292 #ifdef FEAT_BYTEOFF |
| 625 | 293 buf->b_ml.ml_chunksize = NULL; |
| 7 | 294 #endif |
| 295 | |
| 5737 | 296 if (cmdmod.noswapfile) |
| 297 buf->b_p_swf = FALSE; | |
| 298 | |
| 625 | 299 /* |
| 300 * When 'updatecount' is non-zero swap file may be opened later. | |
| 301 */ | |
| 302 if (p_uc && buf->b_p_swf) | |
| 303 buf->b_may_swap = TRUE; | |
| 7 | 304 else |
| 625 | 305 buf->b_may_swap = FALSE; |
| 306 | |
| 307 /* | |
| 308 * Open the memfile. No swap file is created yet. | |
| 309 */ | |
| 7 | 310 mfp = mf_open(NULL, 0); |
| 311 if (mfp == NULL) | |
| 312 goto error; | |
| 313 | |
| 625 | 314 buf->b_ml.ml_mfp = mfp; |
| 2267 | 315 #ifdef FEAT_CRYPT |
| 316 mfp->mf_buffer = buf; | |
| 317 #endif | |
| 625 | 318 buf->b_ml.ml_flags = ML_EMPTY; |
| 319 buf->b_ml.ml_line_count = 1; | |
| 13 | 320 #ifdef FEAT_LINEBREAK |
| 321 curwin->w_nrwidth_line_count = 0; | |
| 322 #endif | |
| 7 | 323 |
| 324 /* | |
| 325 * fill block0 struct and write page 0 | |
| 326 */ | |
| 327 if ((hp = mf_new(mfp, FALSE, 1)) == NULL) | |
| 328 goto error; | |
| 329 if (hp->bh_bnum != 0) | |
| 330 { | |
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331 IEMSG(_("E298: Didn't get block nr 0?")); |
| 7 | 332 goto error; |
| 333 } | |
| 334 b0p = (ZERO_BL *)(hp->bh_data); | |
| 335 | |
| 336 b0p->b0_id[0] = BLOCK0_ID0; | |
| 337 b0p->b0_id[1] = BLOCK0_ID1; | |
| 338 b0p->b0_magic_long = (long)B0_MAGIC_LONG; | |
| 339 b0p->b0_magic_int = (int)B0_MAGIC_INT; | |
| 340 b0p->b0_magic_short = (short)B0_MAGIC_SHORT; | |
| 341 b0p->b0_magic_char = B0_MAGIC_CHAR; | |
|
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patch 8.1.0023: gcc 8.1 warns for use of strncpy()
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parents:
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diff
changeset
|
342 mch_memmove(b0p->b0_version, "VIM ", 4); |
| 7 | 343 STRNCPY(b0p->b0_version + 4, Version, 6); |
| 344 long_to_char((long)mfp->mf_page_size, b0p->b0_page_size); | |
| 625 | 345 |
| 800 | 346 #ifdef FEAT_SPELL |
| 347 if (!buf->b_spell) | |
| 348 #endif | |
| 625 | 349 { |
| 350 b0p->b0_dirty = buf->b_changed ? B0_DIRTY : 0; | |
| 351 b0p->b0_flags = get_fileformat(buf) + 1; | |
| 352 set_b0_fname(b0p, buf); | |
| 353 (void)get_user_name(b0p->b0_uname, B0_UNAME_SIZE); | |
| 354 b0p->b0_uname[B0_UNAME_SIZE - 1] = NUL; | |
| 355 mch_get_host_name(b0p->b0_hname, B0_HNAME_SIZE); | |
| 356 b0p->b0_hname[B0_HNAME_SIZE - 1] = NUL; | |
| 357 long_to_char(mch_get_pid(), b0p->b0_pid); | |
| 2267 | 358 #ifdef FEAT_CRYPT |
| 6122 | 359 ml_set_b0_crypt(buf, b0p); |
| 2267 | 360 #endif |
| 625 | 361 } |
| 7 | 362 |
| 363 /* | |
| 364 * Always sync block number 0 to disk, so we can check the file name in | |
| 2267 | 365 * the swap file in findswapname(). Don't do this for a help files or |
| 366 * a spell buffer though. | |
| 7 | 367 * Only works when there's a swapfile, otherwise it's done when the file |
| 368 * is created. | |
| 369 */ | |
| 370 mf_put(mfp, hp, TRUE, FALSE); | |
| 625 | 371 if (!buf->b_help && !B_SPELL(buf)) |
| 7 | 372 (void)mf_sync(mfp, 0); |
| 373 | |
| 625 | 374 /* |
| 375 * Fill in root pointer block and write page 1. | |
| 376 */ | |
| 7 | 377 if ((hp = ml_new_ptr(mfp)) == NULL) |
| 378 goto error; | |
| 379 if (hp->bh_bnum != 1) | |
| 380 { | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
381 IEMSG(_("E298: Didn't get block nr 1?")); |
| 7 | 382 goto error; |
| 383 } | |
| 384 pp = (PTR_BL *)(hp->bh_data); | |
| 385 pp->pb_count = 1; | |
| 386 pp->pb_pointer[0].pe_bnum = 2; | |
| 387 pp->pb_pointer[0].pe_page_count = 1; | |
| 388 pp->pb_pointer[0].pe_old_lnum = 1; | |
| 389 pp->pb_pointer[0].pe_line_count = 1; /* line count after insertion */ | |
| 390 mf_put(mfp, hp, TRUE, FALSE); | |
| 391 | |
| 625 | 392 /* |
| 393 * Allocate first data block and create an empty line 1. | |
| 394 */ | |
| 7 | 395 if ((hp = ml_new_data(mfp, FALSE, 1)) == NULL) |
| 396 goto error; | |
| 397 if (hp->bh_bnum != 2) | |
| 398 { | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
399 IEMSG(_("E298: Didn't get block nr 2?")); |
| 7 | 400 goto error; |
| 401 } | |
| 402 | |
| 403 dp = (DATA_BL *)(hp->bh_data); | |
| 404 dp->db_index[0] = --dp->db_txt_start; /* at end of block */ | |
| 405 dp->db_free -= 1 + INDEX_SIZE; | |
| 406 dp->db_line_count = 1; | |
| 2003 | 407 *((char_u *)dp + dp->db_txt_start) = NUL; /* empty line */ |
| 7 | 408 |
| 409 return OK; | |
| 410 | |
| 411 error: | |
| 412 if (mfp != NULL) | |
| 413 { | |
| 414 if (hp) | |
| 415 mf_put(mfp, hp, FALSE, FALSE); | |
| 416 mf_close(mfp, TRUE); /* will also free(mfp->mf_fname) */ | |
| 417 } | |
| 625 | 418 buf->b_ml.ml_mfp = NULL; |
| 7 | 419 return FAIL; |
| 420 } | |
| 421 | |
| 2267 | 422 #if defined(FEAT_CRYPT) || defined(PROTO) |
| 423 /* | |
| 6130 | 424 * Prepare encryption for "buf" for the current key and method. |
| 425 */ | |
| 426 static void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
427 ml_set_mfp_crypt(buf_T *buf) |
| 6130 | 428 { |
| 429 if (*buf->b_p_key != NUL) | |
| 430 { | |
| 431 int method_nr = crypt_get_method_nr(buf); | |
| 432 | |
| 433 if (method_nr > CRYPT_M_ZIP) | |
| 434 { | |
| 435 /* Generate a seed and store it in the memfile. */ | |
| 436 sha2_seed(buf->b_ml.ml_mfp->mf_seed, MF_SEED_LEN, NULL, 0); | |
| 437 } | |
| 438 } | |
| 439 } | |
| 440 | |
| 441 /* | |
| 2267 | 442 * Prepare encryption for "buf" with block 0 "b0p". |
| 443 */ | |
| 444 static void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
445 ml_set_b0_crypt(buf_T *buf, ZERO_BL *b0p) |
| 2267 | 446 { |
| 447 if (*buf->b_p_key == NUL) | |
| 448 b0p->b0_id[1] = BLOCK0_ID1; | |
| 449 else | |
| 450 { | |
| 6122 | 451 int method_nr = crypt_get_method_nr(buf); |
| 452 | |
| 453 b0p->b0_id[1] = id1_codes[method_nr]; | |
| 454 if (method_nr > CRYPT_M_ZIP) | |
| 2267 | 455 { |
| 456 /* Generate a seed and store it in block 0 and in the memfile. */ | |
| 457 sha2_seed(&b0p->b0_seed, MF_SEED_LEN, NULL, 0); | |
| 458 mch_memmove(buf->b_ml.ml_mfp->mf_seed, &b0p->b0_seed, MF_SEED_LEN); | |
| 459 } | |
| 460 } | |
| 461 } | |
| 462 | |
| 463 /* | |
| 464 * Called after the crypt key or 'cryptmethod' was changed for "buf". | |
| 465 * Will apply this to the swapfile. | |
| 466 * "old_key" is the previous key. It is equal to buf->b_p_key when | |
| 467 * 'cryptmethod' is changed. | |
|
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Bram Moolenaar <bram@vim.org>
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2283
diff
changeset
|
468 * "old_cm" is the previous 'cryptmethod'. It is equal to the current |
|
d8e4b27cef80
Change 'cryptmethod' from a number to a string option. Make it global-local.
Bram Moolenaar <bram@vim.org>
parents:
2283
diff
changeset
|
469 * 'cryptmethod' when 'key' is changed. |
| 2267 | 470 */ |
| 471 void | |
|
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
472 ml_set_crypt_key( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
473 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
474 char_u *old_key, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
475 char_u *old_cm) |
| 2267 | 476 { |
| 477 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 478 bhdr_T *hp; | |
| 479 int page_count; | |
| 480 int idx; | |
| 481 long error; | |
| 482 infoptr_T *ip; | |
| 483 PTR_BL *pp; | |
| 484 DATA_BL *dp; | |
| 485 blocknr_T bnum; | |
| 486 int top; | |
| 6817 | 487 int old_method; |
| 2267 | 488 |
|
2483
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Fix: when setting crypt key seed was not updated when the swap file wasn't
Bram Moolenaar <bram@vim.org>
parents:
2408
diff
changeset
|
489 if (mfp == NULL) |
| 2267 | 490 return; /* no memfile yet, nothing to do */ |
| 6817 | 491 old_method = crypt_method_nr_from_name(old_cm); |
| 492 | |
| 493 /* First make sure the swapfile is in a consistent state, using the old | |
| 494 * key and method. */ | |
| 495 { | |
| 496 char_u *new_key = buf->b_p_key; | |
| 497 char_u *new_buf_cm = buf->b_p_cm; | |
| 498 | |
| 499 buf->b_p_key = old_key; | |
| 500 buf->b_p_cm = old_cm; | |
| 501 ml_preserve(buf, FALSE); | |
| 502 buf->b_p_key = new_key; | |
| 503 buf->b_p_cm = new_buf_cm; | |
| 504 } | |
| 2267 | 505 |
| 506 /* Set the key, method and seed to be used for reading, these must be the | |
| 507 * old values. */ | |
| 508 mfp->mf_old_key = old_key; | |
| 6817 | 509 mfp->mf_old_cm = old_method; |
| 510 if (old_method > 0 && *old_key != NUL) | |
| 2267 | 511 mch_memmove(mfp->mf_old_seed, mfp->mf_seed, MF_SEED_LEN); |
| 512 | |
| 513 /* Update block 0 with the crypt flag and may set a new seed. */ | |
| 514 ml_upd_block0(buf, UB_CRYPT); | |
| 515 | |
| 516 if (mfp->mf_infile_count > 2) | |
| 517 { | |
| 518 /* | |
| 519 * Need to read back all data blocks from disk, decrypt them with the | |
| 520 * old key/method and mark them to be written. The algorithm is | |
| 521 * similar to what happens in ml_recover(), but we skip negative block | |
| 522 * numbers. | |
| 523 */ | |
| 524 ml_flush_line(buf); /* flush buffered line */ | |
| 525 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 526 | |
| 527 hp = NULL; | |
| 528 bnum = 1; /* start with block 1 */ | |
| 529 page_count = 1; /* which is 1 page */ | |
| 530 idx = 0; /* start with first index in block 1 */ | |
| 531 error = 0; | |
| 532 buf->b_ml.ml_stack_top = 0; | |
|
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patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
533 VIM_CLEAR(buf->b_ml.ml_stack); |
| 2267 | 534 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 535 | |
| 536 for ( ; !got_int; line_breakcheck()) | |
| 537 { | |
| 538 if (hp != NULL) | |
| 539 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 540 | |
| 541 /* get the block (pointer or data) */ | |
| 542 if ((hp = mf_get(mfp, (blocknr_T)bnum, page_count)) == NULL) | |
| 543 { | |
| 544 if (bnum == 1) | |
| 545 break; | |
| 546 ++error; | |
| 547 } | |
| 548 else | |
| 549 { | |
| 550 pp = (PTR_BL *)(hp->bh_data); | |
| 551 if (pp->pb_id == PTR_ID) /* it is a pointer block */ | |
| 552 { | |
| 553 if (pp->pb_count == 0) | |
| 554 { | |
| 555 /* empty block? */ | |
| 556 ++error; | |
| 557 } | |
| 558 else if (idx < (int)pp->pb_count) /* go a block deeper */ | |
| 559 { | |
| 560 if (pp->pb_pointer[idx].pe_bnum < 0) | |
| 561 { | |
| 6817 | 562 /* Skip data block with negative block number. |
| 563 * Should not happen, because of the ml_preserve() | |
| 564 * above. Get same block again for next index. */ | |
| 565 ++idx; | |
| 2267 | 566 continue; |
| 567 } | |
| 568 | |
| 569 /* going one block deeper in the tree, new entry in | |
| 570 * stack */ | |
| 571 if ((top = ml_add_stack(buf)) < 0) | |
| 572 { | |
| 573 ++error; | |
| 574 break; /* out of memory */ | |
| 575 } | |
| 576 ip = &(buf->b_ml.ml_stack[top]); | |
| 577 ip->ip_bnum = bnum; | |
| 578 ip->ip_index = idx; | |
| 579 | |
| 580 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 581 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 6817 | 582 idx = 0; |
| 2267 | 583 continue; |
| 584 } | |
| 585 } | |
| 586 else /* not a pointer block */ | |
| 587 { | |
| 588 dp = (DATA_BL *)(hp->bh_data); | |
| 589 if (dp->db_id != DATA_ID) /* block id wrong */ | |
| 590 ++error; | |
| 591 else | |
| 592 { | |
| 593 /* It is a data block, need to write it back to disk. */ | |
| 594 mf_put(mfp, hp, TRUE, FALSE); | |
| 595 hp = NULL; | |
| 596 } | |
| 597 } | |
| 598 } | |
| 599 | |
| 600 if (buf->b_ml.ml_stack_top == 0) /* finished */ | |
| 601 break; | |
| 602 | |
| 603 /* go one block up in the tree */ | |
| 604 ip = &(buf->b_ml.ml_stack[--(buf->b_ml.ml_stack_top)]); | |
| 605 bnum = ip->ip_bnum; | |
| 606 idx = ip->ip_index + 1; /* go to next index */ | |
| 607 page_count = 1; | |
| 608 } | |
| 6817 | 609 if (hp != NULL) |
| 610 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 2657 | 611 |
| 612 if (error > 0) | |
| 613 EMSG(_("E843: Error while updating swap file crypt")); | |
| 2267 | 614 } |
| 615 | |
| 616 mfp->mf_old_key = NULL; | |
| 617 } | |
| 618 #endif | |
| 619 | |
| 7 | 620 /* |
| 621 * ml_setname() is called when the file name of "buf" has been changed. | |
| 622 * It may rename the swap file. | |
| 623 */ | |
| 624 void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
625 ml_setname(buf_T *buf) |
| 7 | 626 { |
| 627 int success = FALSE; | |
| 628 memfile_T *mfp; | |
| 629 char_u *fname; | |
| 630 char_u *dirp; | |
|
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commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
631 #if defined(MSWIN) |
| 7 | 632 char_u *p; |
| 633 #endif | |
| 634 | |
| 635 mfp = buf->b_ml.ml_mfp; | |
| 636 if (mfp->mf_fd < 0) /* there is no swap file yet */ | |
| 637 { | |
| 638 /* | |
| 639 * When 'updatecount' is 0 and 'noswapfile' there is no swap file. | |
| 640 * For help files we will make a swap file now. | |
| 641 */ | |
| 5737 | 642 if (p_uc != 0 && !cmdmod.noswapfile) |
| 7 | 643 ml_open_file(buf); /* create a swap file */ |
| 644 return; | |
| 645 } | |
| 646 | |
| 647 /* | |
| 648 * Try all directories in the 'directory' option. | |
| 649 */ | |
| 650 dirp = p_dir; | |
| 651 for (;;) | |
| 652 { | |
| 653 if (*dirp == NUL) /* tried all directories, fail */ | |
| 654 break; | |
| 43 | 655 fname = findswapname(buf, &dirp, mfp->mf_fname); |
| 656 /* alloc's fname */ | |
| 3158 | 657 if (dirp == NULL) /* out of memory */ |
| 658 break; | |
| 7 | 659 if (fname == NULL) /* no file name found for this dir */ |
| 660 continue; | |
| 661 | |
|
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commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
662 #if defined(MSWIN) |
| 7 | 663 /* |
| 664 * Set full pathname for swap file now, because a ":!cd dir" may | |
| 665 * change directory without us knowing it. | |
| 666 */ | |
| 667 p = FullName_save(fname, FALSE); | |
| 668 vim_free(fname); | |
| 669 fname = p; | |
| 670 if (fname == NULL) | |
| 671 continue; | |
| 672 #endif | |
| 673 /* if the file name is the same we don't have to do anything */ | |
| 674 if (fnamecmp(fname, mfp->mf_fname) == 0) | |
| 675 { | |
| 676 vim_free(fname); | |
| 677 success = TRUE; | |
| 678 break; | |
| 679 } | |
| 680 /* need to close the swap file before renaming */ | |
| 681 if (mfp->mf_fd >= 0) | |
| 682 { | |
| 683 close(mfp->mf_fd); | |
| 684 mfp->mf_fd = -1; | |
| 685 } | |
| 686 | |
| 687 /* try to rename the swap file */ | |
| 688 if (vim_rename(mfp->mf_fname, fname) == 0) | |
| 689 { | |
| 690 success = TRUE; | |
| 691 vim_free(mfp->mf_fname); | |
| 692 mfp->mf_fname = fname; | |
| 693 vim_free(mfp->mf_ffname); | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
694 #if defined(MSWIN) |
| 7 | 695 mfp->mf_ffname = NULL; /* mf_fname is full pathname already */ |
| 696 #else | |
| 697 mf_set_ffname(mfp); | |
| 698 #endif | |
| 2267 | 699 ml_upd_block0(buf, UB_SAME_DIR); |
| 7 | 700 break; |
| 701 } | |
| 702 vim_free(fname); /* this fname didn't work, try another */ | |
| 703 } | |
| 704 | |
| 705 if (mfp->mf_fd == -1) /* need to (re)open the swap file */ | |
| 706 { | |
| 707 mfp->mf_fd = mch_open((char *)mfp->mf_fname, O_RDWR | O_EXTRA, 0); | |
| 708 if (mfp->mf_fd < 0) | |
| 709 { | |
| 710 /* could not (re)open the swap file, what can we do???? */ | |
| 711 EMSG(_("E301: Oops, lost the swap file!!!")); | |
| 712 return; | |
| 713 } | |
| 2003 | 714 #ifdef HAVE_FD_CLOEXEC |
| 715 { | |
| 716 int fdflags = fcntl(mfp->mf_fd, F_GETFD); | |
| 717 if (fdflags >= 0 && (fdflags & FD_CLOEXEC) == 0) | |
|
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commit https://github.com/vim/vim/commit/fbc4b4db3a9690906a96e16724350a6241cf32a5
Christian Brabandt <cb@256bit.org>
parents:
7881
diff
changeset
|
718 (void)fcntl(mfp->mf_fd, F_SETFD, fdflags | FD_CLOEXEC); |
| 2003 | 719 } |
| 720 #endif | |
| 7 | 721 } |
| 722 if (!success) | |
| 723 EMSG(_("E302: Could not rename swap file")); | |
| 724 } | |
| 725 | |
| 726 /* | |
| 727 * Open a file for the memfile for all buffers that are not readonly or have | |
| 728 * been modified. | |
| 729 * Used when 'updatecount' changes from zero to non-zero. | |
| 730 */ | |
| 731 void | |
|
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parents:
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diff
changeset
|
732 ml_open_files(void) |
| 7 | 733 { |
| 734 buf_T *buf; | |
| 735 | |
|
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commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
Christian Brabandt <cb@256bit.org>
parents:
9536
diff
changeset
|
736 FOR_ALL_BUFFERS(buf) |
| 7 | 737 if (!buf->b_p_ro || buf->b_changed) |
| 738 ml_open_file(buf); | |
| 739 } | |
| 740 | |
| 741 /* | |
| 742 * Open a swap file for an existing memfile, if there is no swap file yet. | |
| 743 * If we are unable to find a file name, mf_fname will be NULL | |
| 744 * and the memfile will be in memory only (no recovery possible). | |
| 745 */ | |
| 746 void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
747 ml_open_file(buf_T *buf) |
| 7 | 748 { |
| 749 memfile_T *mfp; | |
| 750 char_u *fname; | |
| 751 char_u *dirp; | |
| 752 | |
| 753 mfp = buf->b_ml.ml_mfp; | |
| 5737 | 754 if (mfp == NULL || mfp->mf_fd >= 0 || !buf->b_p_swf || cmdmod.noswapfile) |
| 7 | 755 return; /* nothing to do */ |
| 756 | |
| 748 | 757 #ifdef FEAT_SPELL |
| 625 | 758 /* For a spell buffer use a temp file name. */ |
| 759 if (buf->b_spell) | |
| 760 { | |
| 6721 | 761 fname = vim_tempname('s', FALSE); |
| 625 | 762 if (fname != NULL) |
| 763 (void)mf_open_file(mfp, fname); /* consumes fname! */ | |
| 764 buf->b_may_swap = FALSE; | |
| 765 return; | |
| 766 } | |
| 767 #endif | |
| 768 | |
| 7 | 769 /* |
| 770 * Try all directories in 'directory' option. | |
| 771 */ | |
| 772 dirp = p_dir; | |
| 773 for (;;) | |
| 774 { | |
| 775 if (*dirp == NUL) | |
| 776 break; | |
|
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777 /* There is a small chance that between choosing the swap file name |
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778 * and creating it, another Vim creates the file. In that case the |
| 7 | 779 * creation will fail and we will use another directory. */ |
| 43 | 780 fname = findswapname(buf, &dirp, NULL); /* allocates fname */ |
| 3158 | 781 if (dirp == NULL) |
| 782 break; /* out of memory */ | |
| 7 | 783 if (fname == NULL) |
| 784 continue; | |
| 785 if (mf_open_file(mfp, fname) == OK) /* consumes fname! */ | |
| 786 { | |
|
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|
787 #if defined(MSWIN) |
| 7 | 788 /* |
| 789 * set full pathname for swap file now, because a ":!cd dir" may | |
| 790 * change directory without us knowing it. | |
| 791 */ | |
| 792 mf_fullname(mfp); | |
| 793 #endif | |
| 2267 | 794 ml_upd_block0(buf, UB_SAME_DIR); |
| 39 | 795 |
| 7 | 796 /* Flush block zero, so others can read it */ |
| 797 if (mf_sync(mfp, MFS_ZERO) == OK) | |
| 630 | 798 { |
| 799 /* Mark all blocks that should be in the swapfile as dirty. | |
| 800 * Needed for when the 'swapfile' option was reset, so that | |
| 801 * the swap file was deleted, and then on again. */ | |
| 802 mf_set_dirty(mfp); | |
| 7 | 803 break; |
| 630 | 804 } |
| 7 | 805 /* Writing block 0 failed: close the file and try another dir */ |
| 806 mf_close_file(buf, FALSE); | |
| 807 } | |
| 808 } | |
| 809 | |
| 810 if (mfp->mf_fname == NULL) /* Failed! */ | |
| 811 { | |
| 812 need_wait_return = TRUE; /* call wait_return later */ | |
| 813 ++no_wait_return; | |
| 814 (void)EMSG2(_("E303: Unable to open swap file for \"%s\", recovery impossible"), | |
| 3839 | 815 buf_spname(buf) != NULL ? buf_spname(buf) : buf->b_fname); |
| 7 | 816 --no_wait_return; |
| 817 } | |
| 818 | |
| 819 /* don't try to open a swap file again */ | |
| 820 buf->b_may_swap = FALSE; | |
| 821 } | |
| 822 | |
| 823 /* | |
| 824 * If still need to create a swap file, and starting to edit a not-readonly | |
| 825 * file, or reading into an existing buffer, create a swap file now. | |
| 826 */ | |
| 827 void | |
|
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828 check_need_swap( |
|
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829 int newfile) // reading file into new buffer |
| 7 | 830 { |
|
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831 int old_msg_silent = msg_silent; // might be reset by an E325 message |
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832 |
| 7 | 833 if (curbuf->b_may_swap && (!curbuf->b_p_ro || !newfile)) |
| 834 ml_open_file(curbuf); | |
|
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835 msg_silent = old_msg_silent; |
| 7 | 836 } |
| 837 | |
| 838 /* | |
| 839 * Close memline for buffer 'buf'. | |
| 840 * If 'del_file' is TRUE, delete the swap file | |
| 841 */ | |
| 842 void | |
|
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843 ml_close(buf_T *buf, int del_file) |
| 7 | 844 { |
| 845 if (buf->b_ml.ml_mfp == NULL) /* not open */ | |
| 846 return; | |
| 847 mf_close(buf->b_ml.ml_mfp, del_file); /* close the .swp file */ | |
| 848 if (buf->b_ml.ml_line_lnum != 0 && (buf->b_ml.ml_flags & ML_LINE_DIRTY)) | |
| 849 vim_free(buf->b_ml.ml_line_ptr); | |
| 850 vim_free(buf->b_ml.ml_stack); | |
| 851 #ifdef FEAT_BYTEOFF | |
|
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852 VIM_CLEAR(buf->b_ml.ml_chunksize); |
| 7 | 853 #endif |
| 854 buf->b_ml.ml_mfp = NULL; | |
| 855 | |
| 856 /* Reset the "recovered" flag, give the ATTENTION prompt the next time | |
| 857 * this buffer is loaded. */ | |
| 858 buf->b_flags &= ~BF_RECOVERED; | |
| 859 } | |
| 860 | |
| 861 /* | |
| 862 * Close all existing memlines and memfiles. | |
| 863 * Only used when exiting. | |
| 864 * When 'del_file' is TRUE, delete the memfiles. | |
| 165 | 865 * But don't delete files that were ":preserve"d when we are POSIX compatible. |
| 7 | 866 */ |
| 867 void | |
|
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868 ml_close_all(int del_file) |
| 7 | 869 { |
| 870 buf_T *buf; | |
| 871 | |
|
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872 FOR_ALL_BUFFERS(buf) |
| 165 | 873 ml_close(buf, del_file && ((buf->b_flags & BF_PRESERVED) == 0 |
| 874 || vim_strchr(p_cpo, CPO_PRESERVE) == NULL)); | |
| 5519 | 875 #ifdef FEAT_SPELL |
| 876 spell_delete_wordlist(); /* delete the internal wordlist */ | |
| 877 #endif | |
| 7 | 878 #ifdef TEMPDIRNAMES |
| 5519 | 879 vim_deltempdir(); /* delete created temp directory */ |
| 7 | 880 #endif |
| 881 } | |
| 882 | |
| 883 /* | |
| 884 * Close all memfiles for not modified buffers. | |
| 885 * Only use just before exiting! | |
| 886 */ | |
| 887 void | |
|
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888 ml_close_notmod(void) |
| 7 | 889 { |
| 890 buf_T *buf; | |
| 891 | |
|
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892 FOR_ALL_BUFFERS(buf) |
| 7 | 893 if (!bufIsChanged(buf)) |
| 894 ml_close(buf, TRUE); /* close all not-modified buffers */ | |
| 895 } | |
| 896 | |
| 897 /* | |
| 898 * Update the timestamp in the .swp file. | |
| 899 * Used when the file has been written. | |
| 900 */ | |
| 901 void | |
|
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902 ml_timestamp(buf_T *buf) |
| 7 | 903 { |
| 2267 | 904 ml_upd_block0(buf, UB_FNAME); |
| 905 } | |
| 906 | |
| 907 /* | |
| 908 * Return FAIL when the ID of "b0p" is wrong. | |
| 909 */ | |
| 910 static int | |
|
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911 ml_check_b0_id(ZERO_BL *b0p) |
| 2267 | 912 { |
| 913 if (b0p->b0_id[0] != BLOCK0_ID0 | |
| 914 || (b0p->b0_id[1] != BLOCK0_ID1 | |
| 915 && b0p->b0_id[1] != BLOCK0_ID1_C0 | |
| 6122 | 916 && b0p->b0_id[1] != BLOCK0_ID1_C1 |
| 917 && b0p->b0_id[1] != BLOCK0_ID1_C2) | |
| 2267 | 918 ) |
| 919 return FAIL; | |
| 920 return OK; | |
| 39 | 921 } |
| 922 | |
| 923 /* | |
| 924 * Update the timestamp or the B0_SAME_DIR flag of the .swp file. | |
| 925 */ | |
| 926 static void | |
|
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927 ml_upd_block0(buf_T *buf, upd_block0_T what) |
| 39 | 928 { |
| 7 | 929 memfile_T *mfp; |
| 930 bhdr_T *hp; | |
| 931 ZERO_BL *b0p; | |
| 932 | |
| 933 mfp = buf->b_ml.ml_mfp; | |
| 6130 | 934 if (mfp == NULL) |
| 7 | 935 return; |
| 6130 | 936 hp = mf_get(mfp, (blocknr_T)0, 1); |
| 937 if (hp == NULL) | |
| 938 { | |
| 939 #ifdef FEAT_CRYPT | |
| 940 /* Possibly update the seed in the memfile before there is a block0. */ | |
| 941 if (what == UB_CRYPT) | |
| 942 ml_set_mfp_crypt(buf); | |
| 943 #endif | |
| 944 return; | |
| 945 } | |
| 946 | |
| 7 | 947 b0p = (ZERO_BL *)(hp->bh_data); |
| 2267 | 948 if (ml_check_b0_id(b0p) == FAIL) |
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949 IEMSG(_("E304: ml_upd_block0(): Didn't get block 0??")); |
| 7 | 950 else |
| 39 | 951 { |
| 2267 | 952 if (what == UB_FNAME) |
| 39 | 953 set_b0_fname(b0p, buf); |
| 2267 | 954 #ifdef FEAT_CRYPT |
| 955 else if (what == UB_CRYPT) | |
| 956 ml_set_b0_crypt(buf, b0p); | |
| 957 #endif | |
| 958 else /* what == UB_SAME_DIR */ | |
| 39 | 959 set_b0_dir_flag(b0p, buf); |
| 960 } | |
| 7 | 961 mf_put(mfp, hp, TRUE, FALSE); |
| 962 } | |
| 963 | |
| 964 /* | |
| 965 * Write file name and timestamp into block 0 of a swap file. | |
| 966 * Also set buf->b_mtime. | |
| 967 * Don't use NameBuff[]!!! | |
| 968 */ | |
| 969 static void | |
|
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970 set_b0_fname(ZERO_BL *b0p, buf_T *buf) |
| 7 | 971 { |
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972 stat_T st; |
| 7 | 973 |
| 974 if (buf->b_ffname == NULL) | |
| 975 b0p->b0_fname[0] = NUL; | |
| 976 else | |
| 977 { | |
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978 #if defined(MSWIN) || defined(AMIGA) |
| 39 | 979 /* Systems that cannot translate "~user" back into a path: copy the |
| 980 * file name unmodified. Do use slashes instead of backslashes for | |
| 981 * portability. */ | |
| 2267 | 982 vim_strncpy(b0p->b0_fname, buf->b_ffname, B0_FNAME_SIZE_CRYPT - 1); |
| 39 | 983 # ifdef BACKSLASH_IN_FILENAME |
| 984 forward_slash(b0p->b0_fname); | |
| 985 # endif | |
| 7 | 986 #else |
| 987 size_t flen, ulen; | |
| 988 char_u uname[B0_UNAME_SIZE]; | |
| 989 | |
| 990 /* | |
| 991 * For a file under the home directory of the current user, we try to | |
| 992 * replace the home directory path with "~user". This helps when | |
| 993 * editing the same file on different machines over a network. | |
| 994 * First replace home dir path with "~/" with home_replace(). | |
| 995 * Then insert the user name to get "~user/". | |
| 996 */ | |
| 2267 | 997 home_replace(NULL, buf->b_ffname, b0p->b0_fname, |
| 998 B0_FNAME_SIZE_CRYPT, TRUE); | |
| 7 | 999 if (b0p->b0_fname[0] == '~') |
| 1000 { | |
| 1001 flen = STRLEN(b0p->b0_fname); | |
| 1002 /* If there is no user name or it is too long, don't use "~/" */ | |
| 1003 if (get_user_name(uname, B0_UNAME_SIZE) == FAIL | |
| 2267 | 1004 || (ulen = STRLEN(uname)) + flen > B0_FNAME_SIZE_CRYPT - 1) |
| 1005 vim_strncpy(b0p->b0_fname, buf->b_ffname, | |
| 1006 B0_FNAME_SIZE_CRYPT - 1); | |
| 7 | 1007 else |
| 1008 { | |
| 1009 mch_memmove(b0p->b0_fname + ulen + 1, b0p->b0_fname + 1, flen); | |
| 1010 mch_memmove(b0p->b0_fname + 1, uname, ulen); | |
| 1011 } | |
| 1012 } | |
| 1013 #endif | |
| 1014 if (mch_stat((char *)buf->b_ffname, &st) >= 0) | |
| 1015 { | |
| 1016 long_to_char((long)st.st_mtime, b0p->b0_mtime); | |
| 1017 #ifdef CHECK_INODE | |
| 1018 long_to_char((long)st.st_ino, b0p->b0_ino); | |
| 1019 #endif | |
| 1020 buf_store_time(buf, &st, buf->b_ffname); | |
| 1021 buf->b_mtime_read = buf->b_mtime; | |
| 1022 } | |
| 1023 else | |
| 1024 { | |
| 1025 long_to_char(0L, b0p->b0_mtime); | |
| 1026 #ifdef CHECK_INODE | |
| 1027 long_to_char(0L, b0p->b0_ino); | |
| 1028 #endif | |
| 1029 buf->b_mtime = 0; | |
| 1030 buf->b_mtime_read = 0; | |
| 1031 buf->b_orig_size = 0; | |
| 1032 buf->b_orig_mode = 0; | |
| 1033 } | |
| 1034 } | |
| 39 | 1035 |
| 1036 #ifdef FEAT_MBYTE | |
| 1037 /* Also add the 'fileencoding' if there is room. */ | |
| 1038 add_b0_fenc(b0p, curbuf); | |
| 1039 #endif | |
| 7 | 1040 } |
| 1041 | |
| 1042 /* | |
| 39 | 1043 * Update the B0_SAME_DIR flag of the swap file. It's set if the file and the |
| 1044 * swapfile for "buf" are in the same directory. | |
| 1045 * This is fail safe: if we are not sure the directories are equal the flag is | |
| 1046 * not set. | |
| 1047 */ | |
| 1048 static void | |
|
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1049 set_b0_dir_flag(ZERO_BL *b0p, buf_T *buf) |
| 39 | 1050 { |
| 1051 if (same_directory(buf->b_ml.ml_mfp->mf_fname, buf->b_ffname)) | |
| 1052 b0p->b0_flags |= B0_SAME_DIR; | |
| 1053 else | |
| 1054 b0p->b0_flags &= ~B0_SAME_DIR; | |
| 1055 } | |
| 1056 | |
| 1057 #ifdef FEAT_MBYTE | |
| 1058 /* | |
| 1059 * When there is room, add the 'fileencoding' to block zero. | |
| 1060 */ | |
| 1061 static void | |
|
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1062 add_b0_fenc( |
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1063 ZERO_BL *b0p, |
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1064 buf_T *buf) |
| 39 | 1065 { |
| 1066 int n; | |
| 2267 | 1067 int size = B0_FNAME_SIZE_NOCRYPT; |
| 1068 | |
| 1069 # ifdef FEAT_CRYPT | |
| 1070 /* Without encryption use the same offset as in Vim 7.2 to be compatible. | |
| 1071 * With encryption it's OK to move elsewhere, the swap file is not | |
| 1072 * compatible anyway. */ | |
| 1073 if (*buf->b_p_key != NUL) | |
| 1074 size = B0_FNAME_SIZE_CRYPT; | |
| 1075 # endif | |
| 39 | 1076 |
| 835 | 1077 n = (int)STRLEN(buf->b_p_fenc); |
| 2267 | 1078 if ((int)STRLEN(b0p->b0_fname) + n + 1 > size) |
| 39 | 1079 b0p->b0_flags &= ~B0_HAS_FENC; |
| 1080 else | |
| 1081 { | |
| 2267 | 1082 mch_memmove((char *)b0p->b0_fname + size - n, |
| 39 | 1083 (char *)buf->b_p_fenc, (size_t)n); |
| 2267 | 1084 *(b0p->b0_fname + size - n - 1) = NUL; |
| 39 | 1085 b0p->b0_flags |= B0_HAS_FENC; |
| 1086 } | |
| 1087 } | |
| 1088 #endif | |
| 1089 | |
| 1090 | |
| 1091 /* | |
| 2267 | 1092 * Try to recover curbuf from the .swp file. |
| 7 | 1093 */ |
| 1094 void | |
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1095 ml_recover(void) |
| 7 | 1096 { |
| 1097 buf_T *buf = NULL; | |
| 1098 memfile_T *mfp = NULL; | |
| 1099 char_u *fname; | |
| 2267 | 1100 char_u *fname_used = NULL; |
| 7 | 1101 bhdr_T *hp = NULL; |
| 1102 ZERO_BL *b0p; | |
| 39 | 1103 int b0_ff; |
| 1104 char_u *b0_fenc = NULL; | |
| 2267 | 1105 #ifdef FEAT_CRYPT |
| 1106 int b0_cm = -1; | |
| 1107 #endif | |
| 7 | 1108 PTR_BL *pp; |
| 1109 DATA_BL *dp; | |
| 1110 infoptr_T *ip; | |
| 1111 blocknr_T bnum; | |
| 1112 int page_count; | |
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1113 stat_T org_stat, swp_stat; |
| 7 | 1114 int len; |
| 1115 int directly; | |
| 1116 linenr_T lnum; | |
| 1117 char_u *p; | |
| 1118 int i; | |
| 1119 long error; | |
| 1120 int cannot_open; | |
| 1121 linenr_T line_count; | |
| 1122 int has_error; | |
| 1123 int idx; | |
| 1124 int top; | |
| 1125 int txt_start; | |
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1126 off_T size; |
| 7 | 1127 int called_from_main; |
| 1128 int serious_error = TRUE; | |
| 1129 long mtime; | |
| 1130 int attr; | |
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1131 int orig_file_status = NOTDONE; |
| 7 | 1132 |
| 1133 recoverymode = TRUE; | |
| 1134 called_from_main = (curbuf->b_ml.ml_mfp == NULL); | |
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1135 attr = HL_ATTR(HLF_E); |
| 1975 | 1136 |
| 1137 /* | |
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12477
diff
changeset
|
1138 * If the file name ends in ".s[a-w][a-z]" we assume this is the swap file. |
| 1975 | 1139 * Otherwise a search is done to find the swap file(s). |
| 1140 */ | |
| 7 | 1141 fname = curbuf->b_fname; |
| 1142 if (fname == NULL) /* When there is no file name */ | |
| 1143 fname = (char_u *)""; | |
| 1144 len = (int)STRLEN(fname); | |
| 1145 if (len >= 4 && | |
| 2823 | 1146 #if defined(VMS) |
|
10889
5780bd3a5a7e
patch 8.0.0334: can't access b:changedtick from a dict reference
Christian Brabandt <cb@256bit.org>
parents:
10575
diff
changeset
|
1147 STRNICMP(fname + len - 4, "_s", 2) |
| 7 | 1148 #else |
|
10889
5780bd3a5a7e
patch 8.0.0334: can't access b:changedtick from a dict reference
Christian Brabandt <cb@256bit.org>
parents:
10575
diff
changeset
|
1149 STRNICMP(fname + len - 4, ".s", 2) |
| 7 | 1150 #endif |
|
10889
5780bd3a5a7e
patch 8.0.0334: can't access b:changedtick from a dict reference
Christian Brabandt <cb@256bit.org>
parents:
10575
diff
changeset
|
1151 == 0 |
|
12975
e311187347c1
patch 8.0.1363: recovering does not work when swap file ends in .stz
Christian Brabandt <cb@256bit.org>
parents:
12477
diff
changeset
|
1152 && vim_strchr((char_u *)"abcdefghijklmnopqrstuvw", |
|
e311187347c1
patch 8.0.1363: recovering does not work when swap file ends in .stz
Christian Brabandt <cb@256bit.org>
parents:
12477
diff
changeset
|
1153 TOLOWER_ASC(fname[len - 2])) != NULL |
| 1975 | 1154 && ASCII_ISALPHA(fname[len - 1])) |
| 7 | 1155 { |
| 1156 directly = TRUE; | |
| 2267 | 1157 fname_used = vim_strsave(fname); /* make a copy for mf_open() */ |
| 7 | 1158 } |
| 1159 else | |
| 1160 { | |
| 1161 directly = FALSE; | |
| 1162 | |
| 1163 /* count the number of matching swap files */ | |
| 2267 | 1164 len = recover_names(fname, FALSE, 0, NULL); |
| 7 | 1165 if (len == 0) /* no swap files found */ |
| 1166 { | |
| 1167 EMSG2(_("E305: No swap file found for %s"), fname); | |
| 1168 goto theend; | |
| 1169 } | |
| 1170 if (len == 1) /* one swap file found, use it */ | |
| 1171 i = 1; | |
| 1172 else /* several swap files found, choose */ | |
| 1173 { | |
| 1174 /* list the names of the swap files */ | |
| 2267 | 1175 (void)recover_names(fname, TRUE, 0, NULL); |
| 7 | 1176 msg_putchar('\n'); |
| 1177 MSG_PUTS(_("Enter number of swap file to use (0 to quit): ")); | |
| 374 | 1178 i = get_number(FALSE, NULL); |
| 7 | 1179 if (i < 1 || i > len) |
| 1180 goto theend; | |
| 1181 } | |
| 1182 /* get the swap file name that will be used */ | |
| 2267 | 1183 (void)recover_names(fname, FALSE, i, &fname_used); |
| 7 | 1184 } |
| 2267 | 1185 if (fname_used == NULL) |
| 7 | 1186 goto theend; /* out of memory */ |
| 1187 | |
| 1188 /* When called from main() still need to initialize storage structure */ | |
| 625 | 1189 if (called_from_main && ml_open(curbuf) == FAIL) |
| 7 | 1190 getout(1); |
| 1191 | |
| 2267 | 1192 /* |
| 1193 * Allocate a buffer structure for the swap file that is used for recovery. | |
|
2407
6bc102a4bff8
Fix memory access to 'cryptmethod' during recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
1194 * Only the memline and crypt information in it are really used. |
| 2267 | 1195 */ |
| 7 | 1196 buf = (buf_T *)alloc((unsigned)sizeof(buf_T)); |
| 1197 if (buf == NULL) | |
| 1198 goto theend; | |
| 2267 | 1199 |
| 1200 /* | |
| 1201 * init fields in memline struct | |
| 1202 */ | |
| 7 | 1203 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 1204 buf->b_ml.ml_stack = NULL; /* no stack yet */ | |
| 1205 buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ | |
| 1206 buf->b_ml.ml_line_lnum = 0; /* no cached line */ | |
| 1207 buf->b_ml.ml_locked = NULL; /* no locked block */ | |
| 1208 buf->b_ml.ml_flags = 0; | |
|
2408
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1209 #ifdef FEAT_CRYPT |
|
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1210 buf->b_p_key = empty_option; |
|
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1211 buf->b_p_cm = empty_option; |
|
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1212 #endif |
| 7 | 1213 |
| 2267 | 1214 /* |
| 1215 * open the memfile from the old swap file | |
| 1216 */ | |
| 1217 p = vim_strsave(fname_used); /* save "fname_used" for the message: | |
| 1218 mf_open() will consume "fname_used"! */ | |
| 1219 mfp = mf_open(fname_used, O_RDONLY); | |
| 1220 fname_used = p; | |
| 7 | 1221 if (mfp == NULL || mfp->mf_fd < 0) |
| 1222 { | |
| 2267 | 1223 if (fname_used != NULL) |
| 1224 EMSG2(_("E306: Cannot open %s"), fname_used); | |
| 7 | 1225 goto theend; |
| 1226 } | |
| 1227 buf->b_ml.ml_mfp = mfp; | |
| 2267 | 1228 #ifdef FEAT_CRYPT |
| 1229 mfp->mf_buffer = buf; | |
| 1230 #endif | |
| 7 | 1231 |
| 1232 /* | |
| 1233 * The page size set in mf_open() might be different from the page size | |
| 1234 * used in the swap file, we must get it from block 0. But to read block | |
| 1235 * 0 we need a page size. Use the minimal size for block 0 here, it will | |
| 1236 * be set to the real value below. | |
| 1237 */ | |
| 1238 mfp->mf_page_size = MIN_SWAP_PAGE_SIZE; | |
| 1239 | |
| 2267 | 1240 /* |
| 1241 * try to read block 0 | |
| 1242 */ | |
| 7 | 1243 if ((hp = mf_get(mfp, (blocknr_T)0, 1)) == NULL) |
| 1244 { | |
| 1245 msg_start(); | |
| 1246 MSG_PUTS_ATTR(_("Unable to read block 0 from "), attr | MSG_HIST); | |
| 1247 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
| 2267 | 1248 MSG_PUTS_ATTR(_("\nMaybe no changes were made or Vim did not update the swap file."), |
| 7 | 1249 attr | MSG_HIST); |
| 1250 msg_end(); | |
| 1251 goto theend; | |
| 1252 } | |
| 1253 b0p = (ZERO_BL *)(hp->bh_data); | |
| 1254 if (STRNCMP(b0p->b0_version, "VIM 3.0", 7) == 0) | |
| 1255 { | |
| 1256 msg_start(); | |
| 1257 msg_outtrans_attr(mfp->mf_fname, MSG_HIST); | |
| 1258 MSG_PUTS_ATTR(_(" cannot be used with this version of Vim.\n"), | |
| 1259 MSG_HIST); | |
| 1260 MSG_PUTS_ATTR(_("Use Vim version 3.0.\n"), MSG_HIST); | |
| 1261 msg_end(); | |
| 1262 goto theend; | |
| 1263 } | |
| 2267 | 1264 if (ml_check_b0_id(b0p) == FAIL) |
| 7 | 1265 { |
| 1266 EMSG2(_("E307: %s does not look like a Vim swap file"), mfp->mf_fname); | |
| 1267 goto theend; | |
| 1268 } | |
| 1269 if (b0_magic_wrong(b0p)) | |
| 1270 { | |
| 1271 msg_start(); | |
| 1272 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
|
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
1273 #if defined(MSWIN) |
| 7 | 1274 if (STRNCMP(b0p->b0_hname, "PC ", 3) == 0) |
| 1275 MSG_PUTS_ATTR(_(" cannot be used with this version of Vim.\n"), | |
| 1276 attr | MSG_HIST); | |
| 1277 else | |
| 1278 #endif | |
| 1279 MSG_PUTS_ATTR(_(" cannot be used on this computer.\n"), | |
| 1280 attr | MSG_HIST); | |
| 1281 MSG_PUTS_ATTR(_("The file was created on "), attr | MSG_HIST); | |
|
2273
7f09ce7b4126
Fix a memory leak in encryption. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2272
diff
changeset
|
1282 /* avoid going past the end of a corrupted hostname */ |
| 7 | 1283 b0p->b0_fname[0] = NUL; |
| 1284 MSG_PUTS_ATTR(b0p->b0_hname, attr | MSG_HIST); | |
| 1285 MSG_PUTS_ATTR(_(",\nor the file has been damaged."), attr | MSG_HIST); | |
| 1286 msg_end(); | |
| 1287 goto theend; | |
| 1288 } | |
| 1105 | 1289 |
| 2267 | 1290 #ifdef FEAT_CRYPT |
| 6122 | 1291 for (i = 0; i < (int)(sizeof(id1_codes) / sizeof(int)); ++i) |
| 1292 if (id1_codes[i] == b0p->b0_id[1]) | |
| 1293 b0_cm = i; | |
| 1294 if (b0_cm > 0) | |
| 2267 | 1295 mch_memmove(mfp->mf_seed, &b0p->b0_seed, MF_SEED_LEN); |
| 6122 | 1296 crypt_set_cm_option(buf, b0_cm < 0 ? 0 : b0_cm); |
| 2267 | 1297 #else |
| 1298 if (b0p->b0_id[1] != BLOCK0_ID1) | |
| 1299 { | |
|
2283
7e1bd501306d
Mainly documentation updates.
Bram Moolenaar <bram@vim.org>
parents:
2273
diff
changeset
|
1300 EMSG2(_("E833: %s is encrypted and this version of Vim does not support encryption"), mfp->mf_fname); |
| 2267 | 1301 goto theend; |
| 1302 } | |
| 1303 #endif | |
| 1304 | |
| 7 | 1305 /* |
| 1306 * If we guessed the wrong page size, we have to recalculate the | |
| 1307 * highest block number in the file. | |
| 1308 */ | |
| 1309 if (mfp->mf_page_size != (unsigned)char_to_long(b0p->b0_page_size)) | |
| 1310 { | |
| 1105 | 1311 unsigned previous_page_size = mfp->mf_page_size; |
| 1312 | |
| 7 | 1313 mf_new_page_size(mfp, (unsigned)char_to_long(b0p->b0_page_size)); |
| 1105 | 1314 if (mfp->mf_page_size < previous_page_size) |
| 1315 { | |
| 1316 msg_start(); | |
| 1317 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
| 1318 MSG_PUTS_ATTR(_(" has been damaged (page size is smaller than minimum value).\n"), | |
| 1319 attr | MSG_HIST); | |
| 1320 msg_end(); | |
| 1321 goto theend; | |
| 1322 } | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
1323 if ((size = vim_lseek(mfp->mf_fd, (off_T)0L, SEEK_END)) <= 0) |
| 7 | 1324 mfp->mf_blocknr_max = 0; /* no file or empty file */ |
| 1325 else | |
| 1326 mfp->mf_blocknr_max = (blocknr_T)(size / mfp->mf_page_size); | |
| 1327 mfp->mf_infile_count = mfp->mf_blocknr_max; | |
| 1105 | 1328 |
| 1329 /* need to reallocate the memory used to store the data */ | |
| 1330 p = alloc(mfp->mf_page_size); | |
| 1331 if (p == NULL) | |
| 1332 goto theend; | |
| 1333 mch_memmove(p, hp->bh_data, previous_page_size); | |
| 1334 vim_free(hp->bh_data); | |
| 1335 hp->bh_data = p; | |
| 1336 b0p = (ZERO_BL *)(hp->bh_data); | |
| 7 | 1337 } |
| 1338 | |
| 2267 | 1339 /* |
| 1340 * If .swp file name given directly, use name from swap file for buffer. | |
| 1341 */ | |
| 7 | 1342 if (directly) |
| 1343 { | |
| 1344 expand_env(b0p->b0_fname, NameBuff, MAXPATHL); | |
| 1345 if (setfname(curbuf, NameBuff, NULL, TRUE) == FAIL) | |
| 1346 goto theend; | |
| 1347 } | |
| 1348 | |
| 1349 home_replace(NULL, mfp->mf_fname, NameBuff, MAXPATHL, TRUE); | |
| 274 | 1350 smsg((char_u *)_("Using swap file \"%s\""), NameBuff); |
| 7 | 1351 |
| 1352 if (buf_spname(curbuf) != NULL) | |
| 3839 | 1353 vim_strncpy(NameBuff, buf_spname(curbuf), MAXPATHL - 1); |
| 7 | 1354 else |
| 1355 home_replace(NULL, curbuf->b_ffname, NameBuff, MAXPATHL, TRUE); | |
| 274 | 1356 smsg((char_u *)_("Original file \"%s\""), NameBuff); |
| 7 | 1357 msg_putchar('\n'); |
| 1358 | |
| 2267 | 1359 /* |
| 1360 * check date of swap file and original file | |
| 1361 */ | |
| 7 | 1362 mtime = char_to_long(b0p->b0_mtime); |
| 1363 if (curbuf->b_ffname != NULL | |
| 1364 && mch_stat((char *)curbuf->b_ffname, &org_stat) != -1 | |
| 1365 && ((mch_stat((char *)mfp->mf_fname, &swp_stat) != -1 | |
| 1366 && org_stat.st_mtime > swp_stat.st_mtime) | |
| 1367 || org_stat.st_mtime != mtime)) | |
| 1368 { | |
| 1369 EMSG(_("E308: Warning: Original file may have been changed")); | |
| 1370 } | |
| 1371 out_flush(); | |
| 39 | 1372 |
| 1373 /* Get the 'fileformat' and 'fileencoding' from block zero. */ | |
| 1374 b0_ff = (b0p->b0_flags & B0_FF_MASK); | |
| 1375 if (b0p->b0_flags & B0_HAS_FENC) | |
| 1376 { | |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1377 int fnsize = B0_FNAME_SIZE_NOCRYPT; |
| 2267 | 1378 |
| 1379 #ifdef FEAT_CRYPT | |
| 1380 /* Use the same size as in add_b0_fenc(). */ | |
| 1381 if (b0p->b0_id[1] != BLOCK0_ID1) | |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1382 fnsize = B0_FNAME_SIZE_CRYPT; |
| 2267 | 1383 #endif |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1384 for (p = b0p->b0_fname + fnsize; p > b0p->b0_fname && p[-1] != NUL; --p) |
| 39 | 1385 ; |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1386 b0_fenc = vim_strnsave(p, (int)(b0p->b0_fname + fnsize - p)); |
| 39 | 1387 } |
| 1388 | |
| 7 | 1389 mf_put(mfp, hp, FALSE, FALSE); /* release block 0 */ |
| 1390 hp = NULL; | |
| 1391 | |
| 1392 /* | |
| 1393 * Now that we are sure that the file is going to be recovered, clear the | |
| 1394 * contents of the current buffer. | |
| 1395 */ | |
| 1396 while (!(curbuf->b_ml.ml_flags & ML_EMPTY)) | |
| 1397 ml_delete((linenr_T)1, FALSE); | |
| 1398 | |
| 1399 /* | |
| 1400 * Try reading the original file to obtain the values of 'fileformat', | |
| 1401 * 'fileencoding', etc. Ignore errors. The text itself is not used. | |
| 2267 | 1402 * When the file is encrypted the user is asked to enter the key. |
| 7 | 1403 */ |
| 1404 if (curbuf->b_ffname != NULL) | |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1405 orig_file_status = readfile(curbuf->b_ffname, NULL, (linenr_T)0, |
| 7 | 1406 (linenr_T)0, (linenr_T)MAXLNUM, NULL, READ_NEW); |
| 1407 | |
| 2267 | 1408 #ifdef FEAT_CRYPT |
| 1409 if (b0_cm >= 0) | |
| 1410 { | |
| 1411 /* Need to ask the user for the crypt key. If this fails we continue | |
| 1412 * without a key, will probably get garbage text. */ | |
| 1413 if (*curbuf->b_p_key != NUL) | |
| 1414 { | |
| 1415 smsg((char_u *)_("Swap file is encrypted: \"%s\""), fname_used); | |
| 1416 MSG_PUTS(_("\nIf you entered a new crypt key but did not write the text file,")); | |
| 1417 MSG_PUTS(_("\nenter the new crypt key.")); | |
| 1418 MSG_PUTS(_("\nIf you wrote the text file after changing the crypt key press enter")); | |
| 1419 MSG_PUTS(_("\nto use the same key for text file and swap file")); | |
| 1420 } | |
| 1421 else | |
| 1422 smsg((char_u *)_(need_key_msg), fname_used); | |
| 6122 | 1423 buf->b_p_key = crypt_get_key(FALSE, FALSE); |
| 2267 | 1424 if (buf->b_p_key == NULL) |
| 1425 buf->b_p_key = curbuf->b_p_key; | |
| 1426 else if (*buf->b_p_key == NUL) | |
| 1427 { | |
| 1428 vim_free(buf->b_p_key); | |
| 1429 buf->b_p_key = curbuf->b_p_key; | |
| 1430 } | |
| 1431 if (buf->b_p_key == NULL) | |
| 1432 buf->b_p_key = empty_option; | |
|
2165
733f0dc510c3
Undo changes that are meant for the Vim 7.3 branch.
Bram Moolenaar <bram@vim.org>
parents:
2162
diff
changeset
|
1433 } |
| 2267 | 1434 #endif |
| 7 | 1435 |
| 39 | 1436 /* Use the 'fileformat' and 'fileencoding' as stored in the swap file. */ |
| 1437 if (b0_ff != 0) | |
| 1438 set_fileformat(b0_ff - 1, OPT_LOCAL); | |
| 1439 if (b0_fenc != NULL) | |
| 1440 { | |
| 1441 set_option_value((char_u *)"fenc", 0L, b0_fenc, OPT_LOCAL); | |
| 1442 vim_free(b0_fenc); | |
| 1443 } | |
| 1444 unchanged(curbuf, TRUE); | |
| 1445 | |
| 7 | 1446 bnum = 1; /* start with block 1 */ |
| 1447 page_count = 1; /* which is 1 page */ | |
| 1448 lnum = 0; /* append after line 0 in curbuf */ | |
| 1449 line_count = 0; | |
| 1450 idx = 0; /* start with first index in block 1 */ | |
| 1451 error = 0; | |
| 1452 buf->b_ml.ml_stack_top = 0; | |
| 1453 buf->b_ml.ml_stack = NULL; | |
| 1454 buf->b_ml.ml_stack_size = 0; /* no stack yet */ | |
| 1455 | |
| 1456 if (curbuf->b_ffname == NULL) | |
| 1457 cannot_open = TRUE; | |
| 1458 else | |
| 1459 cannot_open = FALSE; | |
| 1460 | |
| 1461 serious_error = FALSE; | |
| 1462 for ( ; !got_int; line_breakcheck()) | |
| 1463 { | |
| 1464 if (hp != NULL) | |
| 1465 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 1466 | |
| 1467 /* | |
| 1468 * get block | |
| 1469 */ | |
| 1470 if ((hp = mf_get(mfp, (blocknr_T)bnum, page_count)) == NULL) | |
| 1471 { | |
| 1472 if (bnum == 1) | |
| 1473 { | |
| 1474 EMSG2(_("E309: Unable to read block 1 from %s"), mfp->mf_fname); | |
| 1475 goto theend; | |
| 1476 } | |
| 1477 ++error; | |
| 1478 ml_append(lnum++, (char_u *)_("???MANY LINES MISSING"), | |
| 1479 (colnr_T)0, TRUE); | |
| 1480 } | |
| 1481 else /* there is a block */ | |
| 1482 { | |
| 1483 pp = (PTR_BL *)(hp->bh_data); | |
| 1484 if (pp->pb_id == PTR_ID) /* it is a pointer block */ | |
| 1485 { | |
| 1486 /* check line count when using pointer block first time */ | |
| 1487 if (idx == 0 && line_count != 0) | |
| 1488 { | |
| 1489 for (i = 0; i < (int)pp->pb_count; ++i) | |
| 1490 line_count -= pp->pb_pointer[i].pe_line_count; | |
| 1491 if (line_count != 0) | |
| 1492 { | |
| 1493 ++error; | |
| 1494 ml_append(lnum++, (char_u *)_("???LINE COUNT WRONG"), | |
| 1495 (colnr_T)0, TRUE); | |
| 1496 } | |
| 1497 } | |
| 1498 | |
| 1499 if (pp->pb_count == 0) | |
| 1500 { | |
| 1501 ml_append(lnum++, (char_u *)_("???EMPTY BLOCK"), | |
| 1502 (colnr_T)0, TRUE); | |
| 1503 ++error; | |
| 1504 } | |
| 1505 else if (idx < (int)pp->pb_count) /* go a block deeper */ | |
| 1506 { | |
| 1507 if (pp->pb_pointer[idx].pe_bnum < 0) | |
| 1508 { | |
| 1509 /* | |
| 1510 * Data block with negative block number. | |
| 1511 * Try to read lines from the original file. | |
| 1512 * This is slow, but it works. | |
| 1513 */ | |
| 1514 if (!cannot_open) | |
| 1515 { | |
| 1516 line_count = pp->pb_pointer[idx].pe_line_count; | |
| 1517 if (readfile(curbuf->b_ffname, NULL, lnum, | |
| 1518 pp->pb_pointer[idx].pe_old_lnum - 1, | |
|
10575
01a5f64a7a20
patch 8.0.0177: BufEnter autocommand not fired for a directory
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
1519 line_count, NULL, 0) != OK) |
| 7 | 1520 cannot_open = TRUE; |
| 1521 else | |
| 1522 lnum += line_count; | |
| 1523 } | |
| 1524 if (cannot_open) | |
| 1525 { | |
| 1526 ++error; | |
| 1527 ml_append(lnum++, (char_u *)_("???LINES MISSING"), | |
| 1528 (colnr_T)0, TRUE); | |
| 1529 } | |
| 1530 ++idx; /* get same block again for next index */ | |
| 1531 continue; | |
| 1532 } | |
| 1533 | |
| 1534 /* | |
| 1535 * going one block deeper in the tree | |
| 1536 */ | |
| 1537 if ((top = ml_add_stack(buf)) < 0) /* new entry in stack */ | |
| 1538 { | |
| 1539 ++error; | |
| 1540 break; /* out of memory */ | |
| 1541 } | |
| 1542 ip = &(buf->b_ml.ml_stack[top]); | |
| 1543 ip->ip_bnum = bnum; | |
| 1544 ip->ip_index = idx; | |
| 1545 | |
| 1546 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 1547 line_count = pp->pb_pointer[idx].pe_line_count; | |
| 1548 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 2885 | 1549 idx = 0; |
| 7 | 1550 continue; |
| 1551 } | |
| 1552 } | |
| 1553 else /* not a pointer block */ | |
| 1554 { | |
| 1555 dp = (DATA_BL *)(hp->bh_data); | |
| 1556 if (dp->db_id != DATA_ID) /* block id wrong */ | |
| 1557 { | |
| 1558 if (bnum == 1) | |
| 1559 { | |
| 1560 EMSG2(_("E310: Block 1 ID wrong (%s not a .swp file?)"), | |
| 1561 mfp->mf_fname); | |
| 1562 goto theend; | |
| 1563 } | |
| 1564 ++error; | |
| 1565 ml_append(lnum++, (char_u *)_("???BLOCK MISSING"), | |
| 1566 (colnr_T)0, TRUE); | |
| 1567 } | |
| 1568 else | |
| 1569 { | |
| 1570 /* | |
| 1571 * it is a data block | |
| 1572 * Append all the lines in this block | |
| 1573 */ | |
| 1574 has_error = FALSE; | |
| 1575 /* | |
| 1576 * check length of block | |
| 1577 * if wrong, use length in pointer block | |
| 1578 */ | |
| 1579 if (page_count * mfp->mf_page_size != dp->db_txt_end) | |
| 1580 { | |
| 1581 ml_append(lnum++, (char_u *)_("??? from here until ???END lines may be messed up"), | |
| 1582 (colnr_T)0, TRUE); | |
| 1583 ++error; | |
| 1584 has_error = TRUE; | |
| 1585 dp->db_txt_end = page_count * mfp->mf_page_size; | |
| 1586 } | |
| 1587 | |
| 1588 /* make sure there is a NUL at the end of the block */ | |
| 1589 *((char_u *)dp + dp->db_txt_end - 1) = NUL; | |
| 1590 | |
| 1591 /* | |
| 1592 * check number of lines in block | |
| 1593 * if wrong, use count in data block | |
| 1594 */ | |
| 1595 if (line_count != dp->db_line_count) | |
| 1596 { | |
| 1597 ml_append(lnum++, (char_u *)_("??? from here until ???END lines may have been inserted/deleted"), | |
| 1598 (colnr_T)0, TRUE); | |
| 1599 ++error; | |
| 1600 has_error = TRUE; | |
| 1601 } | |
| 1602 | |
| 1603 for (i = 0; i < dp->db_line_count; ++i) | |
| 1604 { | |
| 1605 txt_start = (dp->db_index[i] & DB_INDEX_MASK); | |
| 1978 | 1606 if (txt_start <= (int)HEADER_SIZE |
| 7 | 1607 || txt_start >= (int)dp->db_txt_end) |
| 1608 { | |
| 1609 p = (char_u *)"???"; | |
| 1610 ++error; | |
| 1611 } | |
| 1612 else | |
| 1613 p = (char_u *)dp + txt_start; | |
| 1614 ml_append(lnum++, p, (colnr_T)0, TRUE); | |
| 1615 } | |
| 1616 if (has_error) | |
| 1978 | 1617 ml_append(lnum++, (char_u *)_("???END"), |
| 1618 (colnr_T)0, TRUE); | |
| 7 | 1619 } |
| 1620 } | |
| 1621 } | |
| 1622 | |
| 1623 if (buf->b_ml.ml_stack_top == 0) /* finished */ | |
| 1624 break; | |
| 1625 | |
| 1626 /* | |
| 1627 * go one block up in the tree | |
| 1628 */ | |
| 1629 ip = &(buf->b_ml.ml_stack[--(buf->b_ml.ml_stack_top)]); | |
| 1630 bnum = ip->ip_bnum; | |
| 1631 idx = ip->ip_index + 1; /* go to next index */ | |
| 1632 page_count = 1; | |
| 1633 } | |
| 1634 | |
| 1635 /* | |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1636 * Compare the buffer contents with the original file. When they differ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1637 * set the 'modified' flag. |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1638 * Lines 1 - lnum are the new contents. |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1639 * Lines lnum + 1 to ml_line_count are the original contents. |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1640 * Line ml_line_count + 1 in the dummy empty line. |
| 7 | 1641 */ |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1642 if (orig_file_status != OK || curbuf->b_ml.ml_line_count != lnum * 2 + 1) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1643 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1644 /* Recovering an empty file results in two lines and the first line is |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1645 * empty. Don't set the modified flag then. */ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1646 if (!(curbuf->b_ml.ml_line_count == 2 && *ml_get(1) == NUL)) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1647 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1648 changed_int(); |
|
10952
835604f3c37a
patch 8.0.0365: might free a dict item that wasn't allocated
Christian Brabandt <cb@256bit.org>
parents:
10896
diff
changeset
|
1649 ++CHANGEDTICK(curbuf); |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1650 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1651 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1652 else |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1653 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1654 for (idx = 1; idx <= lnum; ++idx) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1655 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1656 /* Need to copy one line, fetching the other one may flush it. */ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1657 p = vim_strsave(ml_get(idx)); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1658 i = STRCMP(p, ml_get(idx + lnum)); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1659 vim_free(p); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
changeset
|
1660 if (i != 0) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1661 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1662 changed_int(); |
|
10952
835604f3c37a
patch 8.0.0365: might free a dict item that wasn't allocated
Christian Brabandt <cb@256bit.org>
parents:
10896
diff
changeset
|
1663 ++CHANGEDTICK(curbuf); |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1664 break; |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1665 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1666 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1667 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1668 |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1669 /* |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1670 * Delete the lines from the original file and the dummy line from the |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1671 * empty buffer. These will now be after the last line in the buffer. |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1672 */ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1673 while (curbuf->b_ml.ml_line_count > lnum |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1674 && !(curbuf->b_ml.ml_flags & ML_EMPTY)) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1675 ml_delete(curbuf->b_ml.ml_line_count, FALSE); |
| 7 | 1676 curbuf->b_flags |= BF_RECOVERED; |
| 1677 | |
| 1678 recoverymode = FALSE; | |
| 1679 if (got_int) | |
| 1680 EMSG(_("E311: Recovery Interrupted")); | |
| 1681 else if (error) | |
| 1682 { | |
| 1683 ++no_wait_return; | |
| 1684 MSG(">>>>>>>>>>>>>"); | |
| 1685 EMSG(_("E312: Errors detected while recovering; look for lines starting with ???")); | |
| 1686 --no_wait_return; | |
| 1687 MSG(_("See \":help E312\" for more information.")); | |
| 1688 MSG(">>>>>>>>>>>>>"); | |
| 1689 } | |
| 1690 else | |
| 1691 { | |
|
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1692 if (curbuf->b_changed) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1693 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1694 MSG(_("Recovery completed. You should check if everything is OK.")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1695 MSG_PUTS(_("\n(You might want to write out this file under another name\n")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1696 MSG_PUTS(_("and run diff with the original file to check for changes)")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1697 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1698 else |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1699 MSG(_("Recovery completed. Buffer contents equals file contents.")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1700 MSG_PUTS(_("\nYou may want to delete the .swp file now.\n\n")); |
| 7 | 1701 cmdline_row = msg_row; |
| 1702 } | |
| 2267 | 1703 #ifdef FEAT_CRYPT |
| 1704 if (*buf->b_p_key != NUL && STRCMP(curbuf->b_p_key, buf->b_p_key) != 0) | |
| 1705 { | |
| 1706 MSG_PUTS(_("Using crypt key from swap file for the text file.\n")); | |
| 1707 set_option_value((char_u *)"key", 0L, buf->b_p_key, OPT_LOCAL); | |
| 1708 } | |
| 1709 #endif | |
| 7 | 1710 redraw_curbuf_later(NOT_VALID); |
| 1711 | |
| 1712 theend: | |
| 2267 | 1713 vim_free(fname_used); |
| 7 | 1714 recoverymode = FALSE; |
| 1715 if (mfp != NULL) | |
| 1716 { | |
| 1717 if (hp != NULL) | |
| 1718 mf_put(mfp, hp, FALSE, FALSE); | |
| 1719 mf_close(mfp, FALSE); /* will also vim_free(mfp->mf_fname) */ | |
| 1720 } | |
| 1053 | 1721 if (buf != NULL) |
| 1722 { | |
| 2267 | 1723 #ifdef FEAT_CRYPT |
| 1724 if (buf->b_p_key != curbuf->b_p_key) | |
| 1725 free_string_option(buf->b_p_key); | |
|
2407
6bc102a4bff8
Fix memory access to 'cryptmethod' during recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
1726 free_string_option(buf->b_p_cm); |
| 2267 | 1727 #endif |
| 1053 | 1728 vim_free(buf->b_ml.ml_stack); |
| 1729 vim_free(buf); | |
| 1730 } | |
| 7 | 1731 if (serious_error && called_from_main) |
| 1732 ml_close(curbuf, TRUE); | |
| 1733 else | |
| 1734 { | |
| 1735 apply_autocmds(EVENT_BUFREADPOST, NULL, curbuf->b_fname, FALSE, curbuf); | |
| 1736 apply_autocmds(EVENT_BUFWINENTER, NULL, curbuf->b_fname, FALSE, curbuf); | |
| 1737 } | |
| 1738 return; | |
| 1739 } | |
| 1740 | |
| 1741 /* | |
| 1742 * Find the names of swap files in current directory and the directory given | |
| 1743 * with the 'directory' option. | |
| 1744 * | |
| 1745 * Used to: | |
| 1746 * - list the swap files for "vim -r" | |
| 1747 * - count the number of swap files when recovering | |
| 1748 * - list the swap files when recovering | |
| 1749 * - find the name of the n'th swap file when recovering | |
| 1750 */ | |
| 1751 int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1752 recover_names( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1753 char_u *fname, /* base for swap file name */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1754 int list, /* when TRUE, list the swap file names */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1755 int nr, /* when non-zero, return nr'th swap file name */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1756 char_u **fname_out) /* result when "nr" > 0 */ |
| 7 | 1757 { |
| 1758 int num_names; | |
| 1759 char_u *(names[6]); | |
| 1760 char_u *tail; | |
| 1761 char_u *p; | |
| 1762 int num_files; | |
| 1763 int file_count = 0; | |
| 1764 char_u **files; | |
| 1765 int i; | |
| 1766 char_u *dirp; | |
| 1767 char_u *dir_name; | |
| 2175 | 1768 char_u *fname_res = NULL; |
|
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diff
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|
1769 #ifdef HAVE_READLINK |
|
de0e7ca61893
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2108
diff
changeset
|
1770 char_u fname_buf[MAXPATHL]; |
| 2175 | 1771 #endif |
| 1772 | |
| 1773 if (fname != NULL) | |
| 1774 { | |
| 1775 #ifdef HAVE_READLINK | |
| 2267 | 1776 /* Expand symlink in the file name, because the swap file is created |
| 1777 * with the actual file instead of with the symlink. */ | |
| 1778 if (resolve_symlink(fname, fname_buf) == OK) | |
| 1779 fname_res = fname_buf; | |
| 1780 else | |
|
2145
de0e7ca61893
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2108
diff
changeset
|
1781 #endif |
| 2267 | 1782 fname_res = fname; |
| 2175 | 1783 } |
| 7 | 1784 |
| 1785 if (list) | |
| 1786 { | |
|
2145
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2108
diff
changeset
|
1787 /* use msg() to start the scrolling properly */ |
| 7 | 1788 msg((char_u *)_("Swap files found:")); |
| 1789 msg_putchar('\n'); | |
| 1790 } | |
| 1791 | |
| 1792 /* | |
| 1793 * Do the loop for every directory in 'directory'. | |
| 1794 * First allocate some memory to put the directory name in. | |
| 1795 */ | |
| 1796 dir_name = alloc((unsigned)STRLEN(p_dir) + 1); | |
| 1797 dirp = p_dir; | |
| 1798 while (dir_name != NULL && *dirp) | |
| 1799 { | |
| 1800 /* | |
| 1801 * Isolate a directory name from *dirp and put it in dir_name (we know | |
| 1802 * it is large enough, so use 31000 for length). | |
| 1803 * Advance dirp to next directory name. | |
| 1804 */ | |
| 1805 (void)copy_option_part(&dirp, dir_name, 31000, ","); | |
| 1806 | |
| 1807 if (dir_name[0] == '.' && dir_name[1] == NUL) /* check current dir */ | |
| 1808 { | |
| 2267 | 1809 if (fname == NULL) |
| 7 | 1810 { |
| 1811 #ifdef VMS | |
| 1812 names[0] = vim_strsave((char_u *)"*_sw%"); | |
| 1813 #else | |
| 1814 names[0] = vim_strsave((char_u *)"*.sw?"); | |
| 1815 #endif | |
| 1005 | 1816 #if defined(UNIX) || defined(WIN3264) |
| 1817 /* For Unix names starting with a dot are special. MS-Windows | |
| 1818 * supports this too, on some file systems. */ | |
| 7 | 1819 names[1] = vim_strsave((char_u *)".*.sw?"); |
| 1820 names[2] = vim_strsave((char_u *)".sw?"); | |
| 1821 num_names = 3; | |
| 1822 #else | |
| 1823 # ifdef VMS | |
| 1824 names[1] = vim_strsave((char_u *)".*_sw%"); | |
| 1825 num_names = 2; | |
| 1826 # else | |
| 1827 num_names = 1; | |
| 1828 # endif | |
| 1829 #endif | |
| 1830 } | |
| 1831 else | |
|
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1832 num_names = recov_file_names(names, fname_res, TRUE); |
| 7 | 1833 } |
| 1834 else /* check directory dir_name */ | |
| 1835 { | |
| 2267 | 1836 if (fname == NULL) |
| 7 | 1837 { |
| 1838 #ifdef VMS | |
| 1839 names[0] = concat_fnames(dir_name, (char_u *)"*_sw%", TRUE); | |
| 1840 #else | |
| 1841 names[0] = concat_fnames(dir_name, (char_u *)"*.sw?", TRUE); | |
| 1842 #endif | |
| 1005 | 1843 #if defined(UNIX) || defined(WIN3264) |
| 1844 /* For Unix names starting with a dot are special. MS-Windows | |
| 1845 * supports this too, on some file systems. */ | |
| 7 | 1846 names[1] = concat_fnames(dir_name, (char_u *)".*.sw?", TRUE); |
| 1847 names[2] = concat_fnames(dir_name, (char_u *)".sw?", TRUE); | |
| 1848 num_names = 3; | |
| 1849 #else | |
| 1850 # ifdef VMS | |
| 1851 names[1] = concat_fnames(dir_name, (char_u *)".*_sw%", TRUE); | |
| 1852 num_names = 2; | |
| 1853 # else | |
| 1854 num_names = 1; | |
| 1855 # endif | |
| 1856 #endif | |
| 1857 } | |
| 1858 else | |
| 1859 { | |
| 1860 #if defined(UNIX) || defined(WIN3264) | |
|
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1861 int len = (int)STRLEN(dir_name); |
|
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1862 |
|
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|
1863 p = dir_name + len; |
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1864 if (after_pathsep(dir_name, p) && len > 1 && p[-1] == p[-2]) |
| 7 | 1865 { |
| 1866 /* Ends with '//', Use Full path for swap name */ | |
|
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1867 tail = make_percent_swname(dir_name, fname_res); |
| 7 | 1868 } |
| 1869 else | |
| 1870 #endif | |
| 1871 { | |
|
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1872 tail = gettail(fname_res); |
| 7 | 1873 tail = concat_fnames(dir_name, tail, TRUE); |
| 1874 } | |
| 1875 if (tail == NULL) | |
| 1876 num_names = 0; | |
| 1877 else | |
| 1878 { | |
| 1879 num_names = recov_file_names(names, tail, FALSE); | |
| 1880 vim_free(tail); | |
| 1881 } | |
| 1882 } | |
| 1883 } | |
| 1884 | |
| 1885 /* check for out-of-memory */ | |
| 1886 for (i = 0; i < num_names; ++i) | |
| 1887 { | |
| 1888 if (names[i] == NULL) | |
| 1889 { | |
| 1890 for (i = 0; i < num_names; ++i) | |
| 1891 vim_free(names[i]); | |
| 1892 num_names = 0; | |
| 1893 } | |
| 1894 } | |
| 1895 if (num_names == 0) | |
| 1896 num_files = 0; | |
| 1897 else if (expand_wildcards(num_names, names, &num_files, &files, | |
| 1898 EW_KEEPALL|EW_FILE|EW_SILENT) == FAIL) | |
| 1899 num_files = 0; | |
| 1900 | |
| 1901 /* | |
| 1902 * When no swap file found, wildcard expansion might have failed (e.g. | |
| 1903 * not able to execute the shell). | |
| 1904 * Try finding a swap file by simply adding ".swp" to the file name. | |
| 1905 */ | |
| 2267 | 1906 if (*dirp == NUL && file_count + num_files == 0 && fname != NULL) |
| 7 | 1907 { |
|
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|
1908 stat_T st; |
| 7 | 1909 char_u *swapname; |
| 1910 | |
|
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1911 swapname = modname(fname_res, |
| 2823 | 1912 #if defined(VMS) |
|
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1913 (char_u *)"_swp", FALSE |
| 7 | 1914 #else |
|
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1915 (char_u *)".swp", TRUE |
| 7 | 1916 #endif |
|
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1917 ); |
| 7 | 1918 if (swapname != NULL) |
| 1919 { | |
| 1920 if (mch_stat((char *)swapname, &st) != -1) /* It exists! */ | |
| 1921 { | |
| 1922 files = (char_u **)alloc((unsigned)sizeof(char_u *)); | |
| 1923 if (files != NULL) | |
| 1924 { | |
| 1925 files[0] = swapname; | |
| 1926 swapname = NULL; | |
| 1927 num_files = 1; | |
| 1928 } | |
| 1929 } | |
| 1930 vim_free(swapname); | |
| 1931 } | |
| 1932 } | |
| 1933 | |
| 1934 /* | |
| 1935 * remove swapfile name of the current buffer, it must be ignored | |
| 1936 */ | |
| 1937 if (curbuf->b_ml.ml_mfp != NULL | |
| 1938 && (p = curbuf->b_ml.ml_mfp->mf_fname) != NULL) | |
| 1939 { | |
| 1940 for (i = 0; i < num_files; ++i) | |
| 1941 if (fullpathcmp(p, files[i], TRUE) & FPC_SAME) | |
| 1942 { | |
| 1855 | 1943 /* Remove the name from files[i]. Move further entries |
| 1944 * down. When the array becomes empty free it here, since | |
| 1945 * FreeWild() won't be called below. */ | |
| 7 | 1946 vim_free(files[i]); |
| 1855 | 1947 if (--num_files == 0) |
| 1948 vim_free(files); | |
| 1949 else | |
| 1950 for ( ; i < num_files; ++i) | |
| 1951 files[i] = files[i + 1]; | |
| 7 | 1952 } |
| 1953 } | |
| 838 | 1954 if (nr > 0) |
| 7 | 1955 { |
| 1956 file_count += num_files; | |
| 1957 if (nr <= file_count) | |
| 1958 { | |
| 2267 | 1959 *fname_out = vim_strsave( |
| 1960 files[nr - 1 + num_files - file_count]); | |
| 7 | 1961 dirp = (char_u *)""; /* stop searching */ |
| 1962 } | |
| 1963 } | |
| 1964 else if (list) | |
| 1965 { | |
| 1966 if (dir_name[0] == '.' && dir_name[1] == NUL) | |
| 1967 { | |
| 2267 | 1968 if (fname == NULL) |
| 7 | 1969 MSG_PUTS(_(" In current directory:\n")); |
| 1970 else | |
| 1971 MSG_PUTS(_(" Using specified name:\n")); | |
| 1972 } | |
| 1973 else | |
| 1974 { | |
| 1975 MSG_PUTS(_(" In directory ")); | |
| 1976 msg_home_replace(dir_name); | |
| 1977 MSG_PUTS(":\n"); | |
| 1978 } | |
| 1979 | |
| 1980 if (num_files) | |
| 1981 { | |
| 1982 for (i = 0; i < num_files; ++i) | |
| 1983 { | |
| 1984 /* print the swap file name */ | |
| 1985 msg_outnum((long)++file_count); | |
| 1986 MSG_PUTS(". "); | |
| 1987 msg_puts(gettail(files[i])); | |
| 1988 msg_putchar('\n'); | |
| 1989 (void)swapfile_info(files[i]); | |
| 1990 } | |
| 1991 } | |
| 1992 else | |
| 1993 MSG_PUTS(_(" -- none --\n")); | |
| 1994 out_flush(); | |
| 1995 } | |
| 1996 else | |
| 1997 file_count += num_files; | |
| 1998 | |
| 1999 for (i = 0; i < num_names; ++i) | |
| 2000 vim_free(names[i]); | |
| 838 | 2001 if (num_files > 0) |
| 2002 FreeWild(num_files, files); | |
| 7 | 2003 } |
| 2004 vim_free(dir_name); | |
| 2005 return file_count; | |
| 2006 } | |
| 2007 | |
|
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|
2008 #if defined(UNIX) || defined(WIN3264) || defined(PROTO) |
| 7 | 2009 /* |
|
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2010 * Need _very_ long file names. |
| 7 | 2011 * Append the full path to name with path separators made into percent |
| 2012 * signs, to dir. An unnamed buffer is handled as "" (<currentdir>/"") | |
| 2013 */ | |
|
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|
2014 char_u * |
|
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|
2015 make_percent_swname(char_u *dir, char_u *name) |
| 7 | 2016 { |
|
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2017 char_u *d = NULL, *s, *f; |
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2018 |
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2019 f = fix_fname(name != NULL ? name : (char_u *)""); |
| 7 | 2020 if (f != NULL) |
| 2021 { | |
| 2022 s = alloc((unsigned)(STRLEN(f) + 1)); | |
| 2023 if (s != NULL) | |
| 2024 { | |
| 39 | 2025 STRCPY(s, f); |
|
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changeset
|
2026 for (d = s; *d != NUL; MB_PTR_ADV(d)) |
| 39 | 2027 if (vim_ispathsep(*d)) |
| 2028 *d = '%'; | |
| 7 | 2029 d = concat_fnames(dir, s, TRUE); |
| 2030 vim_free(s); | |
| 2031 } | |
| 2032 vim_free(f); | |
| 2033 } | |
| 2034 return d; | |
| 2035 } | |
| 2036 #endif | |
| 2037 | |
|
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changeset
|
2038 #if (defined(UNIX) || defined(VMS)) && (defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)) |
| 7 | 2039 static int process_still_running; |
| 2040 #endif | |
| 2041 | |
|
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|
2042 #if defined(FEAT_EVAL) || defined(PROTO) |
| 7 | 2043 /* |
|
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2044 * Return information found in swapfile "fname" in dictionary "d". |
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2045 * This is used by the swapinfo() function. |
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2046 */ |
|
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2047 void |
|
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2048 get_b0_dict(char_u *fname, dict_T *d) |
|
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2049 { |
|
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2050 int fd; |
|
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2051 struct block0 b0; |
|
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2052 |
|
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2053 if ((fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0)) >= 0) |
|
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2054 { |
|
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2055 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
|
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|
2056 { |
|
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2057 if (ml_check_b0_id(&b0) == FAIL) |
|
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2058 dict_add_string(d, "error", |
|
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2059 vim_strsave((char_u *)"Not a swap file")); |
|
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2060 else if (b0_magic_wrong(&b0)) |
|
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2061 dict_add_string(d, "error", |
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|
2062 vim_strsave((char_u *)"Magic number mismatch")); |
|
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2063 else |
|
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|
2064 { |
|
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2065 /* we have swap information */ |
|
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2066 dict_add_string(d, "version", vim_strnsave(b0.b0_version, 10)); |
|
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2067 dict_add_string(d, "user", |
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2068 vim_strnsave(b0.b0_uname, B0_UNAME_SIZE)); |
|
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2069 dict_add_string(d, "host", |
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2070 vim_strnsave(b0.b0_hname, B0_HNAME_SIZE)); |
|
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2071 dict_add_string(d, "fname", |
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2072 vim_strnsave(b0.b0_fname, B0_FNAME_SIZE_ORG)); |
|
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2073 |
|
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2074 dict_add_number(d, "pid", char_to_long(b0.b0_pid)); |
|
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2075 dict_add_number(d, "mtime", char_to_long(b0.b0_mtime)); |
|
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2076 dict_add_number(d, "dirty", b0.b0_dirty ? 1 : 0); |
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2077 # ifdef CHECK_INODE |
|
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2078 dict_add_number(d, "inode", char_to_long(b0.b0_ino)); |
|
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2079 # endif |
|
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2080 } |
|
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2081 } |
|
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2082 else |
|
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2083 dict_add_string(d, "error", |
|
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2084 vim_strsave((char_u *)"Cannot read file")); |
|
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2085 close(fd); |
|
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2086 } |
|
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2087 else |
|
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|
2088 dict_add_string(d, "error", vim_strsave((char_u *)"Cannot open file")); |
|
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2089 } |
|
14601
d0ff19a55579
patch 8.1.0314: build failure without the +eval feature
Christian Brabandt <cb@256bit.org>
parents:
14599
diff
changeset
|
2090 #endif |
|
14599
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
parents:
14593
diff
changeset
|
2091 |
|
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
parents:
14593
diff
changeset
|
2092 /* |
| 580 | 2093 * Give information about an existing swap file. |
| 7 | 2094 * Returns timestamp (0 when unknown). |
| 2095 */ | |
| 2096 static time_t | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2097 swapfile_info(char_u *fname) |
| 7 | 2098 { |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
2099 stat_T st; |
| 7 | 2100 int fd; |
| 2101 struct block0 b0; | |
| 2102 time_t x = (time_t)0; | |
| 1001 | 2103 char *p; |
| 7 | 2104 #ifdef UNIX |
| 2105 char_u uname[B0_UNAME_SIZE]; | |
| 2106 #endif | |
| 2107 | |
| 2108 /* print the swap file date */ | |
| 2109 if (mch_stat((char *)fname, &st) != -1) | |
| 2110 { | |
| 2111 #ifdef UNIX | |
| 2112 /* print name of owner of the file */ | |
| 2113 if (mch_get_uname(st.st_uid, uname, B0_UNAME_SIZE) == OK) | |
| 2114 { | |
| 2115 MSG_PUTS(_(" owned by: ")); | |
| 2116 msg_outtrans(uname); | |
| 2117 MSG_PUTS(_(" dated: ")); | |
| 2118 } | |
| 2119 else | |
| 2120 #endif | |
| 2121 MSG_PUTS(_(" dated: ")); | |
| 2122 x = st.st_mtime; /* Manx C can't do &st.st_mtime */ | |
| 1001 | 2123 p = ctime(&x); /* includes '\n' */ |
| 2124 if (p == NULL) | |
| 2125 MSG_PUTS("(invalid)\n"); | |
| 2126 else | |
| 2127 MSG_PUTS(p); | |
| 7 | 2128 } |
| 2129 | |
| 2130 /* | |
| 2131 * print the original file name | |
| 2132 */ | |
| 2133 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 2134 if (fd >= 0) | |
| 2135 { | |
| 2664 | 2136 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
| 7 | 2137 { |
| 2138 if (STRNCMP(b0.b0_version, "VIM 3.0", 7) == 0) | |
| 2139 { | |
| 2140 MSG_PUTS(_(" [from Vim version 3.0]")); | |
| 2141 } | |
| 2267 | 2142 else if (ml_check_b0_id(&b0) == FAIL) |
| 7 | 2143 { |
| 2144 MSG_PUTS(_(" [does not look like a Vim swap file]")); | |
| 2145 } | |
| 2146 else | |
| 2147 { | |
| 2148 MSG_PUTS(_(" file name: ")); | |
| 2149 if (b0.b0_fname[0] == NUL) | |
| 9 | 2150 MSG_PUTS(_("[No Name]")); |
| 7 | 2151 else |
| 2152 msg_outtrans(b0.b0_fname); | |
| 2153 | |
| 2154 MSG_PUTS(_("\n modified: ")); | |
| 2155 MSG_PUTS(b0.b0_dirty ? _("YES") : _("no")); | |
| 2156 | |
| 2157 if (*(b0.b0_uname) != NUL) | |
| 2158 { | |
| 2159 MSG_PUTS(_("\n user name: ")); | |
| 2160 msg_outtrans(b0.b0_uname); | |
| 2161 } | |
| 2162 | |
| 2163 if (*(b0.b0_hname) != NUL) | |
| 2164 { | |
| 2165 if (*(b0.b0_uname) != NUL) | |
| 2166 MSG_PUTS(_(" host name: ")); | |
| 2167 else | |
| 2168 MSG_PUTS(_("\n host name: ")); | |
| 2169 msg_outtrans(b0.b0_hname); | |
| 2170 } | |
| 2171 | |
| 2172 if (char_to_long(b0.b0_pid) != 0L) | |
| 2173 { | |
| 2174 MSG_PUTS(_("\n process ID: ")); | |
| 2175 msg_outnum(char_to_long(b0.b0_pid)); | |
|
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
2176 #if defined(UNIX) |
| 7 | 2177 /* EMX kill() not working correctly, it seems */ |
| 2178 if (kill((pid_t)char_to_long(b0.b0_pid), 0) == 0) | |
| 2179 { | |
|
14923
95400980f7c9
patch 8.1.0473: user doesn't notice file does not exist when swap file does
Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
2180 MSG_PUTS(_(" (STILL RUNNING)")); |
| 7 | 2181 # if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) |
| 2182 process_still_running = TRUE; | |
| 2183 # endif | |
| 2184 } | |
| 2185 #endif | |
| 2186 } | |
| 2187 | |
| 2188 if (b0_magic_wrong(&b0)) | |
| 2189 { | |
|
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
2190 #if defined(MSWIN) |
| 7 | 2191 if (STRNCMP(b0.b0_hname, "PC ", 3) == 0) |
| 2192 MSG_PUTS(_("\n [not usable with this version of Vim]")); | |
| 2193 else | |
| 2194 #endif | |
| 2195 MSG_PUTS(_("\n [not usable on this computer]")); | |
| 2196 } | |
| 2197 } | |
| 2198 } | |
| 2199 else | |
| 2200 MSG_PUTS(_(" [cannot be read]")); | |
| 2201 close(fd); | |
| 2202 } | |
| 2203 else | |
| 2204 MSG_PUTS(_(" [cannot be opened]")); | |
| 2205 msg_putchar('\n'); | |
| 2206 | |
| 2207 return x; | |
| 2208 } | |
| 2209 | |
| 2210 static int | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2211 recov_file_names(char_u **names, char_u *path, int prepend_dot) |
| 7 | 2212 { |
| 2213 int num_names; | |
| 2214 | |
| 2215 /* | |
| 2216 * (Win32 and Win64) never short names, but do prepend a dot. | |
| 2217 * (Not MS-DOS or Win32 or Win64) maybe short name, maybe not: Try both. | |
| 2218 * Only use the short name if it is different. | |
| 2219 */ | |
| 2220 char_u *p; | |
| 2221 int i; | |
| 2222 # ifndef WIN3264 | |
| 2223 int shortname = curbuf->b_shortname; | |
| 2224 | |
| 2225 curbuf->b_shortname = FALSE; | |
| 2226 # endif | |
| 2227 | |
| 2228 num_names = 0; | |
| 2229 | |
| 2230 /* | |
| 2231 * May also add the file name with a dot prepended, for swap file in same | |
| 2232 * dir as original file. | |
| 2233 */ | |
| 2234 if (prepend_dot) | |
| 2235 { | |
| 2236 names[num_names] = modname(path, (char_u *)".sw?", TRUE); | |
| 2237 if (names[num_names] == NULL) | |
| 2238 goto end; | |
| 2239 ++num_names; | |
| 2240 } | |
| 2241 | |
| 2242 /* | |
| 2243 * Form the normal swap file name pattern by appending ".sw?". | |
| 2244 */ | |
| 2245 #ifdef VMS | |
| 2246 names[num_names] = concat_fnames(path, (char_u *)"_sw%", FALSE); | |
| 2247 #else | |
| 2248 names[num_names] = concat_fnames(path, (char_u *)".sw?", FALSE); | |
| 2249 #endif | |
| 2250 if (names[num_names] == NULL) | |
| 2251 goto end; | |
| 2252 if (num_names >= 1) /* check if we have the same name twice */ | |
| 2253 { | |
| 2254 p = names[num_names - 1]; | |
| 2255 i = (int)STRLEN(names[num_names - 1]) - (int)STRLEN(names[num_names]); | |
| 2256 if (i > 0) | |
| 2257 p += i; /* file name has been expanded to full path */ | |
| 2258 | |
| 2259 if (STRCMP(p, names[num_names]) != 0) | |
| 2260 ++num_names; | |
| 2261 else | |
| 2262 vim_free(names[num_names]); | |
| 2263 } | |
| 2264 else | |
| 2265 ++num_names; | |
| 2266 | |
| 2267 # ifndef WIN3264 | |
| 2268 /* | |
| 2269 * Also try with 'shortname' set, in case the file is on a DOS filesystem. | |
| 2270 */ | |
| 2271 curbuf->b_shortname = TRUE; | |
| 2272 #ifdef VMS | |
| 2273 names[num_names] = modname(path, (char_u *)"_sw%", FALSE); | |
| 2274 #else | |
| 2275 names[num_names] = modname(path, (char_u *)".sw?", FALSE); | |
| 2276 #endif | |
| 2277 if (names[num_names] == NULL) | |
| 2278 goto end; | |
| 2279 | |
| 2280 /* | |
| 2281 * Remove the one from 'shortname', if it's the same as with 'noshortname'. | |
| 2282 */ | |
| 2283 p = names[num_names]; | |
| 2284 i = STRLEN(names[num_names]) - STRLEN(names[num_names - 1]); | |
| 2285 if (i > 0) | |
| 2286 p += i; /* file name has been expanded to full path */ | |
| 2287 if (STRCMP(names[num_names - 1], p) == 0) | |
| 2288 vim_free(names[num_names]); | |
| 2289 else | |
| 2290 ++num_names; | |
| 2291 # endif | |
| 2292 | |
| 2293 end: | |
| 2294 # ifndef WIN3264 | |
| 2295 curbuf->b_shortname = shortname; | |
| 2296 # endif | |
| 2297 | |
| 2298 return num_names; | |
| 2299 } | |
| 2300 | |
| 2301 /* | |
| 2302 * sync all memlines | |
| 2303 * | |
| 2304 * If 'check_file' is TRUE, check if original file exists and was not changed. | |
| 2305 * If 'check_char' is TRUE, stop syncing when character becomes available, but | |
| 2306 * always sync at least one block. | |
| 2307 */ | |
| 2308 void | |
|
7827
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2309 ml_sync_all(int check_file, int check_char) |
| 7 | 2310 { |
| 2311 buf_T *buf; | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
2312 stat_T st; |
| 7 | 2313 |
|
9649
fd9727ae3c49
commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
Christian Brabandt <cb@256bit.org>
parents:
9536
diff
changeset
|
2314 FOR_ALL_BUFFERS(buf) |
| 7 | 2315 { |
| 2316 if (buf->b_ml.ml_mfp == NULL || buf->b_ml.ml_mfp->mf_fname == NULL) | |
| 2317 continue; /* no file */ | |
| 2318 | |
| 2319 ml_flush_line(buf); /* flush buffered line */ | |
| 2320 /* flush locked block */ | |
| 2321 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); | |
| 2322 if (bufIsChanged(buf) && check_file && mf_need_trans(buf->b_ml.ml_mfp) | |
| 2323 && buf->b_ffname != NULL) | |
| 2324 { | |
| 2325 /* | |
| 2326 * If the original file does not exist anymore or has been changed | |
| 2327 * call ml_preserve() to get rid of all negative numbered blocks. | |
| 2328 */ | |
| 2329 if (mch_stat((char *)buf->b_ffname, &st) == -1 | |
| 2330 || st.st_mtime != buf->b_mtime_read | |
|
2241
60da25e3aab7
Correct use of long instead of off_t for file size. (James Vega)
Bram Moolenaar <bram@vim.org>
parents:
2240
diff
changeset
|
2331 || st.st_size != buf->b_orig_size) |
| 7 | 2332 { |
| 2333 ml_preserve(buf, FALSE); | |
| 2334 did_check_timestamps = FALSE; | |
| 2335 need_check_timestamps = TRUE; /* give message later */ | |
| 2336 } | |
| 2337 } | |
| 2338 if (buf->b_ml.ml_mfp->mf_dirty) | |
| 2339 { | |
| 2340 (void)mf_sync(buf->b_ml.ml_mfp, (check_char ? MFS_STOP : 0) | |
| 2341 | (bufIsChanged(buf) ? MFS_FLUSH : 0)); | |
| 2342 if (check_char && ui_char_avail()) /* character available now */ | |
| 2343 break; | |
| 2344 } | |
| 2345 } | |
| 2346 } | |
| 2347 | |
| 2348 /* | |
| 2349 * sync one buffer, including negative blocks | |
| 2350 * | |
| 2351 * after this all the blocks are in the swap file | |
| 2352 * | |
| 2353 * Used for the :preserve command and when the original file has been | |
| 2354 * changed or deleted. | |
| 2355 * | |
| 2356 * when message is TRUE the success of preserving is reported | |
| 2357 */ | |
| 2358 void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2359 ml_preserve(buf_T *buf, int message) |
| 7 | 2360 { |
| 2361 bhdr_T *hp; | |
| 2362 linenr_T lnum; | |
| 2363 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 2364 int status; | |
| 2365 int got_int_save = got_int; | |
| 2366 | |
| 2367 if (mfp == NULL || mfp->mf_fname == NULL) | |
| 2368 { | |
| 2369 if (message) | |
| 2370 EMSG(_("E313: Cannot preserve, there is no swap file")); | |
| 2371 return; | |
| 2372 } | |
| 2373 | |
| 2374 /* We only want to stop when interrupted here, not when interrupted | |
| 2375 * before. */ | |
| 2376 got_int = FALSE; | |
| 2377 | |
| 2378 ml_flush_line(buf); /* flush buffered line */ | |
| 2379 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 2380 status = mf_sync(mfp, MFS_ALL | MFS_FLUSH); | |
| 2381 | |
| 2382 /* stack is invalid after mf_sync(.., MFS_ALL) */ | |
| 2383 buf->b_ml.ml_stack_top = 0; | |
| 2384 | |
| 2385 /* | |
| 2386 * Some of the data blocks may have been changed from negative to | |
| 2387 * positive block number. In that case the pointer blocks need to be | |
| 2388 * updated. | |
| 2389 * | |
| 2390 * We don't know in which pointer block the references are, so we visit | |
| 2391 * all data blocks until there are no more translations to be done (or | |
| 2392 * we hit the end of the file, which can only happen in case a write fails, | |
| 2393 * e.g. when file system if full). | |
| 2394 * ml_find_line() does the work by translating the negative block numbers | |
| 2395 * when getting the first line of each data block. | |
| 2396 */ | |
| 2397 if (mf_need_trans(mfp) && !got_int) | |
| 2398 { | |
| 2399 lnum = 1; | |
| 2400 while (mf_need_trans(mfp) && lnum <= buf->b_ml.ml_line_count) | |
| 2401 { | |
| 2402 hp = ml_find_line(buf, lnum, ML_FIND); | |
| 2403 if (hp == NULL) | |
| 2404 { | |
| 2405 status = FAIL; | |
| 2406 goto theend; | |
| 2407 } | |
| 2408 CHECK(buf->b_ml.ml_locked_low != lnum, "low != lnum"); | |
| 2409 lnum = buf->b_ml.ml_locked_high + 1; | |
| 2410 } | |
| 2411 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 2412 /* sync the updated pointer blocks */ | |
| 2413 if (mf_sync(mfp, MFS_ALL | MFS_FLUSH) == FAIL) | |
| 2414 status = FAIL; | |
| 2415 buf->b_ml.ml_stack_top = 0; /* stack is invalid now */ | |
| 2416 } | |
| 2417 theend: | |
| 2418 got_int |= got_int_save; | |
| 2419 | |
| 2420 if (message) | |
| 2421 { | |
| 2422 if (status == OK) | |
| 2423 MSG(_("File preserved")); | |
| 2424 else | |
| 2425 EMSG(_("E314: Preserve failed")); | |
| 2426 } | |
| 2427 } | |
| 2428 | |
| 2429 /* | |
| 2430 * NOTE: The pointer returned by the ml_get_*() functions only remains valid | |
| 2431 * until the next call! | |
| 2432 * line1 = ml_get(1); | |
| 2433 * line2 = ml_get(2); // line1 is now invalid! | |
| 2434 * Make a copy of the line if necessary. | |
| 2435 */ | |
| 2436 /* | |
| 2657 | 2437 * Return a pointer to a (read-only copy of a) line. |
| 7 | 2438 * |
| 2439 * On failure an error message is given and IObuff is returned (to avoid | |
| 2440 * having to check for error everywhere). | |
| 2441 */ | |
| 2442 char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2443 ml_get(linenr_T lnum) |
| 7 | 2444 { |
| 2445 return ml_get_buf(curbuf, lnum, FALSE); | |
| 2446 } | |
| 2447 | |
| 2448 /* | |
| 2657 | 2449 * Return pointer to position "pos". |
| 7 | 2450 */ |
| 2451 char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2452 ml_get_pos(pos_T *pos) |
| 7 | 2453 { |
| 2454 return (ml_get_buf(curbuf, pos->lnum, FALSE) + pos->col); | |
| 2455 } | |
| 2456 | |
| 2457 /* | |
| 2657 | 2458 * Return pointer to cursor line. |
| 7 | 2459 */ |
| 2460 char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2461 ml_get_curline(void) |
| 7 | 2462 { |
| 2463 return ml_get_buf(curbuf, curwin->w_cursor.lnum, FALSE); | |
| 2464 } | |
| 2465 | |
| 2466 /* | |
| 2657 | 2467 * Return pointer to cursor position. |
| 7 | 2468 */ |
| 2469 char_u * | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2470 ml_get_cursor(void) |
| 7 | 2471 { |
| 2472 return (ml_get_buf(curbuf, curwin->w_cursor.lnum, FALSE) + | |
| 2473 curwin->w_cursor.col); | |
| 2474 } | |
| 2475 | |
| 2476 /* | |
| 2657 | 2477 * Return a pointer to a line in a specific buffer |
| 7 | 2478 * |
| 2479 * "will_change": if TRUE mark the buffer dirty (chars in the line will be | |
| 2480 * changed) | |
| 2481 */ | |
| 2482 char_u * | |
|
7827
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2483 ml_get_buf( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2484 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2485 linenr_T lnum, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2486 int will_change) /* line will be changed */ |
| 7 | 2487 { |
| 1068 | 2488 bhdr_T *hp; |
| 2489 DATA_BL *dp; | |
| 2490 char_u *ptr; | |
| 2491 static int recursive = 0; | |
| 7 | 2492 |
| 2493 if (lnum > buf->b_ml.ml_line_count) /* invalid line number */ | |
| 2494 { | |
| 1068 | 2495 if (recursive == 0) |
| 2496 { | |
| 2497 /* Avoid giving this message for a recursive call, may happen when | |
| 2498 * the GUI redraws part of the text. */ | |
| 2499 ++recursive; | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2500 IEMSGN(_("E315: ml_get: invalid lnum: %ld"), lnum); |
| 1068 | 2501 --recursive; |
| 2502 } | |
| 7 | 2503 errorret: |
| 2504 STRCPY(IObuff, "???"); | |
| 2505 return IObuff; | |
| 2506 } | |
| 2507 if (lnum <= 0) /* pretend line 0 is line 1 */ | |
| 2508 lnum = 1; | |
| 2509 | |
| 2510 if (buf->b_ml.ml_mfp == NULL) /* there are no lines */ | |
| 2511 return (char_u *)""; | |
| 2512 | |
|
2108
3cdf2a653e00
updated for version 7.2.391
Bram Moolenaar <bram@zimbu.org>
parents:
2075
diff
changeset
|
2513 /* |
|
3cdf2a653e00
updated for version 7.2.391
Bram Moolenaar <bram@zimbu.org>
parents:
2075
diff
changeset
|
2514 * See if it is the same line as requested last time. |
|
3cdf2a653e00
updated for version 7.2.391
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parents:
2075
diff
changeset
|
2515 * Otherwise may need to flush last used line. |
|
3cdf2a653e00
updated for version 7.2.391
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parents:
2075
diff
changeset
|
2516 * Don't use the last used line when 'swapfile' is reset, need to load all |
|
3cdf2a653e00
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parents:
2075
diff
changeset
|
2517 * blocks. |
|
3cdf2a653e00
updated for version 7.2.391
Bram Moolenaar <bram@zimbu.org>
parents:
2075
diff
changeset
|
2518 */ |
| 1066 | 2519 if (buf->b_ml.ml_line_lnum != lnum || mf_dont_release) |
| 7 | 2520 { |
| 2521 ml_flush_line(buf); | |
| 2522 | |
| 2523 /* | |
| 2524 * Find the data block containing the line. | |
| 2525 * This also fills the stack with the blocks from the root to the data | |
| 2526 * block and releases any locked block. | |
| 2527 */ | |
| 2528 if ((hp = ml_find_line(buf, lnum, ML_FIND)) == NULL) | |
| 2529 { | |
| 1068 | 2530 if (recursive == 0) |
| 2531 { | |
| 2532 /* Avoid giving this message for a recursive call, may happen | |
| 2533 * when the GUI redraws part of the text. */ | |
| 2534 ++recursive; | |
|
10359
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2535 IEMSGN(_("E316: ml_get: cannot find line %ld"), lnum); |
| 1068 | 2536 --recursive; |
| 2537 } | |
| 7 | 2538 goto errorret; |
| 2539 } | |
| 2540 | |
| 2541 dp = (DATA_BL *)(hp->bh_data); | |
| 2542 | |
| 2543 ptr = (char_u *)dp + ((dp->db_index[lnum - buf->b_ml.ml_locked_low]) & DB_INDEX_MASK); | |
| 2544 buf->b_ml.ml_line_ptr = ptr; | |
| 2545 buf->b_ml.ml_line_lnum = lnum; | |
| 2546 buf->b_ml.ml_flags &= ~ML_LINE_DIRTY; | |
| 2547 } | |
| 2548 if (will_change) | |
| 2549 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 2550 | |
| 2551 return buf->b_ml.ml_line_ptr; | |
| 2552 } | |
| 2553 | |
| 2554 /* | |
| 2555 * Check if a line that was just obtained by a call to ml_get | |
| 2556 * is in allocated memory. | |
| 2557 */ | |
| 2558 int | |
|
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parents:
7803
diff
changeset
|
2559 ml_line_alloced(void) |
| 7 | 2560 { |
| 2561 return (curbuf->b_ml.ml_flags & ML_LINE_DIRTY); | |
| 2562 } | |
| 2563 | |
| 2564 /* | |
| 2565 * Append a line after lnum (may be 0 to insert a line in front of the file). | |
| 2566 * "line" does not need to be allocated, but can't be another line in a | |
| 2567 * buffer, unlocking may make it invalid. | |
| 2568 * | |
| 2569 * newfile: TRUE when starting to edit a new file, meaning that pe_old_lnum | |
| 2570 * will be set for recovery | |
| 2571 * Check: The caller of this function should probably also call | |
| 2572 * appended_lines(). | |
| 2573 * | |
| 2574 * return FAIL for failure, OK otherwise | |
| 2575 */ | |
| 2576 int | |
|
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parents:
7803
diff
changeset
|
2577 ml_append( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2578 linenr_T lnum, /* append after this line (can be 0) */ |
|
41789f16d6b2
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parents:
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diff
changeset
|
2579 char_u *line, /* text of the new line */ |
|
41789f16d6b2
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2580 colnr_T len, /* length of new line, including NUL, or 0 */ |
|
41789f16d6b2
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2581 int newfile) /* flag, see above */ |
| 7 | 2582 { |
| 2583 /* When starting up, we might still need to create the memfile */ | |
|
2394
a3aca345aafa
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Bram Moolenaar <bram@vim.org>
parents:
2360
diff
changeset
|
2584 if (curbuf->b_ml.ml_mfp == NULL && open_buffer(FALSE, NULL, 0) == FAIL) |
| 7 | 2585 return FAIL; |
| 2586 | |
| 2587 if (curbuf->b_ml.ml_line_lnum != 0) | |
| 2588 ml_flush_line(curbuf); | |
| 2589 return ml_append_int(curbuf, lnum, line, len, newfile, FALSE); | |
| 2590 } | |
| 2591 | |
|
12477
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Christian Brabandt <cb@256bit.org>
parents:
11158
diff
changeset
|
2592 #if defined(FEAT_SPELL) || defined(FEAT_QUICKFIX) || defined(PROTO) |
| 625 | 2593 /* |
| 2594 * Like ml_append() but for an arbitrary buffer. The buffer must already have | |
| 2595 * a memline. | |
| 2596 */ | |
| 2597 int | |
|
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parents:
7803
diff
changeset
|
2598 ml_append_buf( |
|
41789f16d6b2
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parents:
7803
diff
changeset
|
2599 buf_T *buf, |
|
41789f16d6b2
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2600 linenr_T lnum, /* append after this line (can be 0) */ |
|
41789f16d6b2
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2601 char_u *line, /* text of the new line */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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parents:
7803
diff
changeset
|
2602 colnr_T len, /* length of new line, including NUL, or 0 */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2603 int newfile) /* flag, see above */ |
| 625 | 2604 { |
| 2605 if (buf->b_ml.ml_mfp == NULL) | |
| 2606 return FAIL; | |
| 2607 | |
| 2608 if (buf->b_ml.ml_line_lnum != 0) | |
| 2609 ml_flush_line(buf); | |
| 2610 return ml_append_int(buf, lnum, line, len, newfile, FALSE); | |
| 2611 } | |
| 2612 #endif | |
| 2613 | |
| 7 | 2614 static int |
|
7827
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parents:
7803
diff
changeset
|
2615 ml_append_int( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2616 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2617 linenr_T lnum, /* append after this line (can be 0) */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2618 char_u *line, /* text of the new line */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2619 colnr_T len, /* length of line, including NUL, or 0 */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2620 int newfile, /* flag, see above */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2621 int mark) /* mark the new line */ |
| 7 | 2622 { |
| 2623 int i; | |
| 2624 int line_count; /* number of indexes in current block */ | |
| 2625 int offset; | |
| 2626 int from, to; | |
| 2627 int space_needed; /* space needed for new line */ | |
| 2628 int page_size; | |
| 2629 int page_count; | |
| 2630 int db_idx; /* index for lnum in data block */ | |
| 2631 bhdr_T *hp; | |
| 2632 memfile_T *mfp; | |
| 2633 DATA_BL *dp; | |
| 2634 PTR_BL *pp; | |
| 2635 infoptr_T *ip; | |
| 2636 | |
| 2637 /* lnum out of range */ | |
| 2638 if (lnum > buf->b_ml.ml_line_count || buf->b_ml.ml_mfp == NULL) | |
| 2639 return FAIL; | |
| 2640 | |
| 2641 if (lowest_marked && lowest_marked > lnum) | |
| 2642 lowest_marked = lnum + 1; | |
| 2643 | |
| 2644 if (len == 0) | |
| 2645 len = (colnr_T)STRLEN(line) + 1; /* space needed for the text */ | |
| 2646 space_needed = len + INDEX_SIZE; /* space needed for text + index */ | |
| 2647 | |
| 2648 mfp = buf->b_ml.ml_mfp; | |
| 2649 page_size = mfp->mf_page_size; | |
| 2650 | |
| 2651 /* | |
| 2652 * find the data block containing the previous line | |
| 2653 * This also fills the stack with the blocks from the root to the data block | |
| 2654 * This also releases any locked block. | |
| 2655 */ | |
| 2656 if ((hp = ml_find_line(buf, lnum == 0 ? (linenr_T)1 : lnum, | |
| 2657 ML_INSERT)) == NULL) | |
| 2658 return FAIL; | |
| 2659 | |
| 2660 buf->b_ml.ml_flags &= ~ML_EMPTY; | |
| 2661 | |
| 2662 if (lnum == 0) /* got line one instead, correct db_idx */ | |
| 2663 db_idx = -1; /* careful, it is negative! */ | |
| 2664 else | |
| 2665 db_idx = lnum - buf->b_ml.ml_locked_low; | |
| 2666 /* get line count before the insertion */ | |
| 2667 line_count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low; | |
| 2668 | |
| 2669 dp = (DATA_BL *)(hp->bh_data); | |
| 2670 | |
| 2671 /* | |
| 2672 * If | |
| 2673 * - there is not enough room in the current block | |
| 2674 * - appending to the last line in the block | |
| 2675 * - not appending to the last line in the file | |
| 2676 * insert in front of the next block. | |
| 2677 */ | |
| 2678 if ((int)dp->db_free < space_needed && db_idx == line_count - 1 | |
| 2679 && lnum < buf->b_ml.ml_line_count) | |
| 2680 { | |
| 2681 /* | |
| 2682 * Now that the line is not going to be inserted in the block that we | |
| 2683 * expected, the line count has to be adjusted in the pointer blocks | |
| 2684 * by using ml_locked_lineadd. | |
| 2685 */ | |
| 2686 --(buf->b_ml.ml_locked_lineadd); | |
| 2687 --(buf->b_ml.ml_locked_high); | |
| 2688 if ((hp = ml_find_line(buf, lnum + 1, ML_INSERT)) == NULL) | |
| 2689 return FAIL; | |
| 2690 | |
| 2691 db_idx = -1; /* careful, it is negative! */ | |
| 2692 /* get line count before the insertion */ | |
| 2693 line_count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low; | |
| 2694 CHECK(buf->b_ml.ml_locked_low != lnum + 1, "locked_low != lnum + 1"); | |
| 2695 | |
| 2696 dp = (DATA_BL *)(hp->bh_data); | |
| 2697 } | |
| 2698 | |
| 2699 ++buf->b_ml.ml_line_count; | |
| 2700 | |
| 2701 if ((int)dp->db_free >= space_needed) /* enough room in data block */ | |
| 2702 { | |
| 2703 /* | |
| 2704 * Insert new line in existing data block, or in data block allocated above. | |
| 2705 */ | |
| 2706 dp->db_txt_start -= len; | |
| 2707 dp->db_free -= space_needed; | |
| 2708 ++(dp->db_line_count); | |
| 2709 | |
| 2710 /* | |
| 2711 * move the text of the lines that follow to the front | |
| 2712 * adjust the indexes of the lines that follow | |
| 2713 */ | |
| 2714 if (line_count > db_idx + 1) /* if there are following lines */ | |
| 2715 { | |
| 2716 /* | |
| 2717 * Offset is the start of the previous line. | |
| 2718 * This will become the character just after the new line. | |
| 2719 */ | |
| 2720 if (db_idx < 0) | |
| 2721 offset = dp->db_txt_end; | |
| 2722 else | |
| 2723 offset = ((dp->db_index[db_idx]) & DB_INDEX_MASK); | |
| 2724 mch_memmove((char *)dp + dp->db_txt_start, | |
| 2725 (char *)dp + dp->db_txt_start + len, | |
| 2726 (size_t)(offset - (dp->db_txt_start + len))); | |
| 2727 for (i = line_count - 1; i > db_idx; --i) | |
| 2728 dp->db_index[i + 1] = dp->db_index[i] - len; | |
| 2729 dp->db_index[db_idx + 1] = offset - len; | |
| 2730 } | |
| 2731 else /* add line at the end */ | |
| 2732 dp->db_index[db_idx + 1] = dp->db_txt_start; | |
| 2733 | |
| 2734 /* | |
| 2735 * copy the text into the block | |
| 2736 */ | |
| 2737 mch_memmove((char *)dp + dp->db_index[db_idx + 1], line, (size_t)len); | |
| 2738 if (mark) | |
| 2739 dp->db_index[db_idx + 1] |= DB_MARKED; | |
| 2740 | |
| 2741 /* | |
| 2742 * Mark the block dirty. | |
| 2743 */ | |
| 2744 buf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 2745 if (!newfile) | |
| 2746 buf->b_ml.ml_flags |= ML_LOCKED_POS; | |
| 2747 } | |
| 2748 else /* not enough space in data block */ | |
| 2749 { | |
| 2750 /* | |
| 2751 * If there is not enough room we have to create a new data block and copy some | |
| 2752 * lines into it. | |
| 2753 * Then we have to insert an entry in the pointer block. | |
| 2754 * If this pointer block also is full, we go up another block, and so on, up | |
| 2755 * to the root if necessary. | |
| 2756 * The line counts in the pointer blocks have already been adjusted by | |
| 2757 * ml_find_line(). | |
| 2758 */ | |
| 2759 long line_count_left, line_count_right; | |
| 2760 int page_count_left, page_count_right; | |
| 2761 bhdr_T *hp_left; | |
| 2762 bhdr_T *hp_right; | |
| 2763 bhdr_T *hp_new; | |
| 2764 int lines_moved; | |
| 2765 int data_moved = 0; /* init to shut up gcc */ | |
| 2766 int total_moved = 0; /* init to shut up gcc */ | |
| 2767 DATA_BL *dp_right, *dp_left; | |
| 2768 int stack_idx; | |
| 2769 int in_left; | |
| 2770 int lineadd; | |
| 2771 blocknr_T bnum_left, bnum_right; | |
| 2772 linenr_T lnum_left, lnum_right; | |
| 2773 int pb_idx; | |
| 2774 PTR_BL *pp_new; | |
| 2775 | |
| 2776 /* | |
| 2777 * We are going to allocate a new data block. Depending on the | |
| 2778 * situation it will be put to the left or right of the existing | |
| 2779 * block. If possible we put the new line in the left block and move | |
| 2780 * the lines after it to the right block. Otherwise the new line is | |
| 2781 * also put in the right block. This method is more efficient when | |
| 2782 * inserting a lot of lines at one place. | |
| 2783 */ | |
| 2784 if (db_idx < 0) /* left block is new, right block is existing */ | |
| 2785 { | |
| 2786 lines_moved = 0; | |
| 2787 in_left = TRUE; | |
| 2788 /* space_needed does not change */ | |
| 2789 } | |
| 2790 else /* left block is existing, right block is new */ | |
| 2791 { | |
| 2792 lines_moved = line_count - db_idx - 1; | |
| 2793 if (lines_moved == 0) | |
| 2794 in_left = FALSE; /* put new line in right block */ | |
| 2795 /* space_needed does not change */ | |
| 2796 else | |
| 2797 { | |
| 2798 data_moved = ((dp->db_index[db_idx]) & DB_INDEX_MASK) - | |
| 2799 dp->db_txt_start; | |
| 2800 total_moved = data_moved + lines_moved * INDEX_SIZE; | |
| 2801 if ((int)dp->db_free + total_moved >= space_needed) | |
| 2802 { | |
| 2803 in_left = TRUE; /* put new line in left block */ | |
| 2804 space_needed = total_moved; | |
| 2805 } | |
| 2806 else | |
| 2807 { | |
| 2808 in_left = FALSE; /* put new line in right block */ | |
| 2809 space_needed += total_moved; | |
| 2810 } | |
| 2811 } | |
| 2812 } | |
| 2813 | |
| 2814 page_count = ((space_needed + HEADER_SIZE) + page_size - 1) / page_size; | |
| 2815 if ((hp_new = ml_new_data(mfp, newfile, page_count)) == NULL) | |
| 2816 { | |
| 2817 /* correct line counts in pointer blocks */ | |
| 2818 --(buf->b_ml.ml_locked_lineadd); | |
| 2819 --(buf->b_ml.ml_locked_high); | |
| 2820 return FAIL; | |
| 2821 } | |
| 2822 if (db_idx < 0) /* left block is new */ | |
| 2823 { | |
| 2824 hp_left = hp_new; | |
| 2825 hp_right = hp; | |
| 2826 line_count_left = 0; | |
| 2827 line_count_right = line_count; | |
| 2828 } | |
| 2829 else /* right block is new */ | |
| 2830 { | |
| 2831 hp_left = hp; | |
| 2832 hp_right = hp_new; | |
| 2833 line_count_left = line_count; | |
| 2834 line_count_right = 0; | |
| 2835 } | |
| 2836 dp_right = (DATA_BL *)(hp_right->bh_data); | |
| 2837 dp_left = (DATA_BL *)(hp_left->bh_data); | |
| 2838 bnum_left = hp_left->bh_bnum; | |
| 2839 bnum_right = hp_right->bh_bnum; | |
| 2840 page_count_left = hp_left->bh_page_count; | |
| 2841 page_count_right = hp_right->bh_page_count; | |
| 2842 | |
| 2843 /* | |
| 2844 * May move the new line into the right/new block. | |
| 2845 */ | |
| 2846 if (!in_left) | |
| 2847 { | |
| 2848 dp_right->db_txt_start -= len; | |
| 2849 dp_right->db_free -= len + INDEX_SIZE; | |
| 2850 dp_right->db_index[0] = dp_right->db_txt_start; | |
| 2851 if (mark) | |
| 2852 dp_right->db_index[0] |= DB_MARKED; | |
| 2853 | |
| 2854 mch_memmove((char *)dp_right + dp_right->db_txt_start, | |
| 2855 line, (size_t)len); | |
| 2856 ++line_count_right; | |
| 2857 } | |
| 2858 /* | |
| 2859 * may move lines from the left/old block to the right/new one. | |
| 2860 */ | |
| 2861 if (lines_moved) | |
| 2862 { | |
| 2863 /* | |
| 2864 */ | |
| 2865 dp_right->db_txt_start -= data_moved; | |
| 2866 dp_right->db_free -= total_moved; | |
| 2867 mch_memmove((char *)dp_right + dp_right->db_txt_start, | |
| 2868 (char *)dp_left + dp_left->db_txt_start, | |
| 2869 (size_t)data_moved); | |
| 2870 offset = dp_right->db_txt_start - dp_left->db_txt_start; | |
| 2871 dp_left->db_txt_start += data_moved; | |
| 2872 dp_left->db_free += total_moved; | |
| 2873 | |
| 2874 /* | |
| 2875 * update indexes in the new block | |
| 2876 */ | |
| 2877 for (to = line_count_right, from = db_idx + 1; | |
| 2878 from < line_count_left; ++from, ++to) | |
| 2879 dp_right->db_index[to] = dp->db_index[from] + offset; | |
| 2880 line_count_right += lines_moved; | |
| 2881 line_count_left -= lines_moved; | |
| 2882 } | |
| 2883 | |
| 2884 /* | |
| 2885 * May move the new line into the left (old or new) block. | |
| 2886 */ | |
| 2887 if (in_left) | |
| 2888 { | |
| 2889 dp_left->db_txt_start -= len; | |
| 2890 dp_left->db_free -= len + INDEX_SIZE; | |
| 2891 dp_left->db_index[line_count_left] = dp_left->db_txt_start; | |
| 2892 if (mark) | |
| 2893 dp_left->db_index[line_count_left] |= DB_MARKED; | |
| 2894 mch_memmove((char *)dp_left + dp_left->db_txt_start, | |
| 2895 line, (size_t)len); | |
| 2896 ++line_count_left; | |
| 2897 } | |
| 2898 | |
| 2899 if (db_idx < 0) /* left block is new */ | |
| 2900 { | |
| 2901 lnum_left = lnum + 1; | |
| 2902 lnum_right = 0; | |
| 2903 } | |
| 2904 else /* right block is new */ | |
| 2905 { | |
| 2906 lnum_left = 0; | |
| 2907 if (in_left) | |
| 2908 lnum_right = lnum + 2; | |
| 2909 else | |
| 2910 lnum_right = lnum + 1; | |
| 2911 } | |
| 2912 dp_left->db_line_count = line_count_left; | |
| 2913 dp_right->db_line_count = line_count_right; | |
| 2914 | |
| 2915 /* | |
| 2916 * release the two data blocks | |
| 2917 * The new one (hp_new) already has a correct blocknumber. | |
| 2918 * The old one (hp, in ml_locked) gets a positive blocknumber if | |
| 2919 * we changed it and we are not editing a new file. | |
| 2920 */ | |
| 2921 if (lines_moved || in_left) | |
| 2922 buf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 2923 if (!newfile && db_idx >= 0 && in_left) | |
| 2924 buf->b_ml.ml_flags |= ML_LOCKED_POS; | |
| 2925 mf_put(mfp, hp_new, TRUE, FALSE); | |
| 2926 | |
| 2927 /* | |
| 2928 * flush the old data block | |
| 2929 * set ml_locked_lineadd to 0, because the updating of the | |
| 2930 * pointer blocks is done below | |
| 2931 */ | |
| 2932 lineadd = buf->b_ml.ml_locked_lineadd; | |
| 2933 buf->b_ml.ml_locked_lineadd = 0; | |
| 2934 ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush data block */ | |
| 2935 | |
| 2936 /* | |
| 2937 * update pointer blocks for the new data block | |
| 2938 */ | |
| 2939 for (stack_idx = buf->b_ml.ml_stack_top - 1; stack_idx >= 0; | |
| 2940 --stack_idx) | |
| 2941 { | |
| 2942 ip = &(buf->b_ml.ml_stack[stack_idx]); | |
| 2943 pb_idx = ip->ip_index; | |
| 2944 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 2945 return FAIL; | |
| 2946 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 2947 if (pp->pb_id != PTR_ID) | |
| 2948 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2949 IEMSG(_("E317: pointer block id wrong 3")); |
| 7 | 2950 mf_put(mfp, hp, FALSE, FALSE); |
| 2951 return FAIL; | |
| 2952 } | |
| 2953 /* | |
| 2954 * TODO: If the pointer block is full and we are adding at the end | |
| 2955 * try to insert in front of the next block | |
| 2956 */ | |
| 2957 /* block not full, add one entry */ | |
| 2958 if (pp->pb_count < pp->pb_count_max) | |
| 2959 { | |
| 2960 if (pb_idx + 1 < (int)pp->pb_count) | |
| 2961 mch_memmove(&pp->pb_pointer[pb_idx + 2], | |
| 2962 &pp->pb_pointer[pb_idx + 1], | |
| 2963 (size_t)(pp->pb_count - pb_idx - 1) * sizeof(PTR_EN)); | |
| 2964 ++pp->pb_count; | |
| 2965 pp->pb_pointer[pb_idx].pe_line_count = line_count_left; | |
| 2966 pp->pb_pointer[pb_idx].pe_bnum = bnum_left; | |
| 2967 pp->pb_pointer[pb_idx].pe_page_count = page_count_left; | |
| 2968 pp->pb_pointer[pb_idx + 1].pe_line_count = line_count_right; | |
| 2969 pp->pb_pointer[pb_idx + 1].pe_bnum = bnum_right; | |
| 2970 pp->pb_pointer[pb_idx + 1].pe_page_count = page_count_right; | |
| 2971 | |
| 2972 if (lnum_left != 0) | |
| 2973 pp->pb_pointer[pb_idx].pe_old_lnum = lnum_left; | |
| 2974 if (lnum_right != 0) | |
| 2975 pp->pb_pointer[pb_idx + 1].pe_old_lnum = lnum_right; | |
| 2976 | |
| 2977 mf_put(mfp, hp, TRUE, FALSE); | |
| 2978 buf->b_ml.ml_stack_top = stack_idx + 1; /* truncate stack */ | |
| 2979 | |
| 2980 if (lineadd) | |
| 2981 { | |
| 2982 --(buf->b_ml.ml_stack_top); | |
| 1167 | 2983 /* fix line count for rest of blocks in the stack */ |
| 7 | 2984 ml_lineadd(buf, lineadd); |
| 2985 /* fix stack itself */ | |
| 2986 buf->b_ml.ml_stack[buf->b_ml.ml_stack_top].ip_high += | |
| 2987 lineadd; | |
| 2988 ++(buf->b_ml.ml_stack_top); | |
| 2989 } | |
| 2990 | |
| 2991 /* | |
| 2992 * We are finished, break the loop here. | |
| 2993 */ | |
| 2994 break; | |
| 2995 } | |
| 2996 else /* pointer block full */ | |
| 2997 { | |
| 2998 /* | |
| 2999 * split the pointer block | |
| 3000 * allocate a new pointer block | |
| 3001 * move some of the pointer into the new block | |
| 3002 * prepare for updating the parent block | |
| 3003 */ | |
| 3004 for (;;) /* do this twice when splitting block 1 */ | |
| 3005 { | |
| 3006 hp_new = ml_new_ptr(mfp); | |
| 3007 if (hp_new == NULL) /* TODO: try to fix tree */ | |
| 3008 return FAIL; | |
| 3009 pp_new = (PTR_BL *)(hp_new->bh_data); | |
| 3010 | |
| 3011 if (hp->bh_bnum != 1) | |
| 3012 break; | |
| 3013 | |
| 3014 /* | |
| 3015 * if block 1 becomes full the tree is given an extra level | |
| 3016 * The pointers from block 1 are moved into the new block. | |
| 3017 * block 1 is updated to point to the new block | |
| 3018 * then continue to split the new block | |
| 3019 */ | |
| 3020 mch_memmove(pp_new, pp, (size_t)page_size); | |
| 3021 pp->pb_count = 1; | |
| 3022 pp->pb_pointer[0].pe_bnum = hp_new->bh_bnum; | |
| 3023 pp->pb_pointer[0].pe_line_count = buf->b_ml.ml_line_count; | |
| 3024 pp->pb_pointer[0].pe_old_lnum = 1; | |
| 3025 pp->pb_pointer[0].pe_page_count = 1; | |
| 3026 mf_put(mfp, hp, TRUE, FALSE); /* release block 1 */ | |
| 3027 hp = hp_new; /* new block is to be split */ | |
| 3028 pp = pp_new; | |
| 3029 CHECK(stack_idx != 0, _("stack_idx should be 0")); | |
| 3030 ip->ip_index = 0; | |
| 3031 ++stack_idx; /* do block 1 again later */ | |
| 3032 } | |
| 3033 /* | |
| 3034 * move the pointers after the current one to the new block | |
| 3035 * If there are none, the new entry will be in the new block. | |
| 3036 */ | |
| 3037 total_moved = pp->pb_count - pb_idx - 1; | |
| 3038 if (total_moved) | |
| 3039 { | |
| 3040 mch_memmove(&pp_new->pb_pointer[0], | |
| 3041 &pp->pb_pointer[pb_idx + 1], | |
| 3042 (size_t)(total_moved) * sizeof(PTR_EN)); | |
| 3043 pp_new->pb_count = total_moved; | |
| 3044 pp->pb_count -= total_moved - 1; | |
| 3045 pp->pb_pointer[pb_idx + 1].pe_bnum = bnum_right; | |
| 3046 pp->pb_pointer[pb_idx + 1].pe_line_count = line_count_right; | |
| 3047 pp->pb_pointer[pb_idx + 1].pe_page_count = page_count_right; | |
| 3048 if (lnum_right) | |
| 3049 pp->pb_pointer[pb_idx + 1].pe_old_lnum = lnum_right; | |
| 3050 } | |
| 3051 else | |
| 3052 { | |
| 3053 pp_new->pb_count = 1; | |
| 3054 pp_new->pb_pointer[0].pe_bnum = bnum_right; | |
| 3055 pp_new->pb_pointer[0].pe_line_count = line_count_right; | |
| 3056 pp_new->pb_pointer[0].pe_page_count = page_count_right; | |
| 3057 pp_new->pb_pointer[0].pe_old_lnum = lnum_right; | |
| 3058 } | |
| 3059 pp->pb_pointer[pb_idx].pe_bnum = bnum_left; | |
| 3060 pp->pb_pointer[pb_idx].pe_line_count = line_count_left; | |
| 3061 pp->pb_pointer[pb_idx].pe_page_count = page_count_left; | |
| 3062 if (lnum_left) | |
| 3063 pp->pb_pointer[pb_idx].pe_old_lnum = lnum_left; | |
| 3064 lnum_left = 0; | |
| 3065 lnum_right = 0; | |
| 3066 | |
| 3067 /* | |
| 3068 * recompute line counts | |
| 3069 */ | |
| 3070 line_count_right = 0; | |
| 3071 for (i = 0; i < (int)pp_new->pb_count; ++i) | |
| 3072 line_count_right += pp_new->pb_pointer[i].pe_line_count; | |
| 3073 line_count_left = 0; | |
| 3074 for (i = 0; i < (int)pp->pb_count; ++i) | |
| 3075 line_count_left += pp->pb_pointer[i].pe_line_count; | |
| 3076 | |
| 3077 bnum_left = hp->bh_bnum; | |
| 3078 bnum_right = hp_new->bh_bnum; | |
| 3079 page_count_left = 1; | |
| 3080 page_count_right = 1; | |
| 3081 mf_put(mfp, hp, TRUE, FALSE); | |
| 3082 mf_put(mfp, hp_new, TRUE, FALSE); | |
| 3083 } | |
| 3084 } | |
| 3085 | |
| 3086 /* | |
| 3087 * Safety check: fallen out of for loop? | |
| 3088 */ | |
| 3089 if (stack_idx < 0) | |
| 3090 { | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3091 IEMSG(_("E318: Updated too many blocks?")); |
| 7 | 3092 buf->b_ml.ml_stack_top = 0; /* invalidate stack */ |
| 3093 } | |
| 3094 } | |
| 3095 | |
| 3096 #ifdef FEAT_BYTEOFF | |
| 3097 /* The line was inserted below 'lnum' */ | |
| 3098 ml_updatechunk(buf, lnum + 1, (long)len, ML_CHNK_ADDLINE); | |
| 3099 #endif | |
| 3100 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3101 if (netbeans_active()) |
| 7 | 3102 { |
| 3103 if (STRLEN(line) > 0) | |
| 835 | 3104 netbeans_inserted(buf, lnum+1, (colnr_T)0, line, (int)STRLEN(line)); |
| 34 | 3105 netbeans_inserted(buf, lnum+1, (colnr_T)STRLEN(line), |
| 7 | 3106 (char_u *)"\n", 1); |
| 3107 } | |
| 3108 #endif | |
|
8493
caed4b2d305f
commit https://github.com/vim/vim/commit/509ce2a558e7e0c03242e32e844255af52f1c821
Christian Brabandt <cb@256bit.org>
parents:
8422
diff
changeset
|
3109 #ifdef FEAT_JOB_CHANNEL |
|
8422
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3110 if (buf->b_write_to_channel) |
|
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3111 channel_write_new_lines(buf); |
|
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3112 #endif |
|
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3113 |
| 7 | 3114 return OK; |
| 3115 } | |
| 3116 | |
| 3117 /* | |
| 625 | 3118 * Replace line lnum, with buffering, in current buffer. |
| 7 | 3119 * |
| 720 | 3120 * If "copy" is TRUE, make a copy of the line, otherwise the line has been |
| 7 | 3121 * copied to allocated memory already. |
| 3122 * | |
| 3123 * Check: The caller of this function should probably also call | |
| 3124 * changed_lines(), unless update_screen(NOT_VALID) is used. | |
| 3125 * | |
| 3126 * return FAIL for failure, OK otherwise | |
| 3127 */ | |
| 3128 int | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3129 ml_replace(linenr_T lnum, char_u *line, int copy) |
| 7 | 3130 { |
| 3131 if (line == NULL) /* just checking... */ | |
| 3132 return FAIL; | |
| 3133 | |
| 3134 /* When starting up, we might still need to create the memfile */ | |
|
2394
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Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents:
2360
diff
changeset
|
3135 if (curbuf->b_ml.ml_mfp == NULL && open_buffer(FALSE, NULL, 0) == FAIL) |
| 7 | 3136 return FAIL; |
| 3137 | |
| 3138 if (copy && (line = vim_strsave(line)) == NULL) /* allocate memory */ | |
| 3139 return FAIL; | |
| 3140 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3141 if (netbeans_active()) |
| 7 | 3142 { |
| 3143 netbeans_removed(curbuf, lnum, 0, (long)STRLEN(ml_get(lnum))); | |
| 835 | 3144 netbeans_inserted(curbuf, lnum, 0, line, (int)STRLEN(line)); |
| 7 | 3145 } |
| 3146 #endif | |
| 3147 if (curbuf->b_ml.ml_line_lnum != lnum) /* other line buffered */ | |
| 3148 ml_flush_line(curbuf); /* flush it */ | |
| 3149 else if (curbuf->b_ml.ml_flags & ML_LINE_DIRTY) /* same line allocated */ | |
| 3150 vim_free(curbuf->b_ml.ml_line_ptr); /* free it */ | |
| 3151 curbuf->b_ml.ml_line_ptr = line; | |
| 3152 curbuf->b_ml.ml_line_lnum = lnum; | |
| 3153 curbuf->b_ml.ml_flags = (curbuf->b_ml.ml_flags | ML_LINE_DIRTY) & ~ML_EMPTY; | |
| 3154 | |
| 3155 return OK; | |
| 3156 } | |
| 3157 | |
| 3158 /* | |
|
12477
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patch 8.0.1118: FEAT_WINDOWS adds a lot of #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
11158
diff
changeset
|
3159 * Delete line "lnum" in the current buffer. |
|
68d7bc045dbe
patch 8.0.1118: FEAT_WINDOWS adds a lot of #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
11158
diff
changeset
|
3160 * When "message" is TRUE may give a "No lines in buffer" message. |
| 7 | 3161 * |
| 3162 * Check: The caller of this function should probably also call | |
| 3163 * deleted_lines() after this. | |
| 3164 * | |
| 3165 * return FAIL for failure, OK otherwise | |
| 3166 */ | |
| 3167 int | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3168 ml_delete(linenr_T lnum, int message) |
| 7 | 3169 { |
| 3170 ml_flush_line(curbuf); | |
| 3171 return ml_delete_int(curbuf, lnum, message); | |
| 3172 } | |
| 3173 | |
| 3174 static int | |
|
7827
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3175 ml_delete_int(buf_T *buf, linenr_T lnum, int message) |
| 7 | 3176 { |
| 3177 bhdr_T *hp; | |
| 3178 memfile_T *mfp; | |
| 3179 DATA_BL *dp; | |
| 3180 PTR_BL *pp; | |
| 3181 infoptr_T *ip; | |
| 3182 int count; /* number of entries in block */ | |
| 3183 int idx; | |
| 3184 int stack_idx; | |
| 3185 int text_start; | |
| 3186 int line_start; | |
| 3187 long line_size; | |
| 3188 int i; | |
| 3189 | |
| 3190 if (lnum < 1 || lnum > buf->b_ml.ml_line_count) | |
| 3191 return FAIL; | |
| 3192 | |
| 3193 if (lowest_marked && lowest_marked > lnum) | |
| 3194 lowest_marked--; | |
| 3195 | |
| 3196 /* | |
| 3197 * If the file becomes empty the last line is replaced by an empty line. | |
| 3198 */ | |
| 3199 if (buf->b_ml.ml_line_count == 1) /* file becomes empty */ | |
| 3200 { | |
| 3201 if (message | |
| 3202 #ifdef FEAT_NETBEANS_INTG | |
| 3203 && !netbeansSuppressNoLines | |
| 3204 #endif | |
| 3205 ) | |
| 680 | 3206 set_keep_msg((char_u *)_(no_lines_msg), 0); |
| 3207 | |
| 4352 | 3208 /* FEAT_BYTEOFF already handled in there, don't worry 'bout it below */ |
| 7 | 3209 i = ml_replace((linenr_T)1, (char_u *)"", TRUE); |
| 3210 buf->b_ml.ml_flags |= ML_EMPTY; | |
| 3211 | |
| 3212 return i; | |
| 3213 } | |
| 3214 | |
| 3215 /* | |
| 3216 * find the data block containing the line | |
| 3217 * This also fills the stack with the blocks from the root to the data block | |
| 3218 * This also releases any locked block. | |
| 3219 */ | |
| 3220 mfp = buf->b_ml.ml_mfp; | |
| 3221 if (mfp == NULL) | |
| 3222 return FAIL; | |
| 3223 | |
| 3224 if ((hp = ml_find_line(buf, lnum, ML_DELETE)) == NULL) | |
| 3225 return FAIL; | |
| 3226 | |
| 3227 dp = (DATA_BL *)(hp->bh_data); | |
| 3228 /* compute line count before the delete */ | |
| 3229 count = (long)(buf->b_ml.ml_locked_high) | |
| 3230 - (long)(buf->b_ml.ml_locked_low) + 2; | |
| 3231 idx = lnum - buf->b_ml.ml_locked_low; | |
| 3232 | |
| 3233 --buf->b_ml.ml_line_count; | |
| 3234 | |
| 3235 line_start = ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 3236 if (idx == 0) /* first line in block, text at the end */ | |
| 3237 line_size = dp->db_txt_end - line_start; | |
| 3238 else | |
| 3239 line_size = ((dp->db_index[idx - 1]) & DB_INDEX_MASK) - line_start; | |
| 3240 | |
| 3241 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3242 if (netbeans_active()) |
| 34 | 3243 netbeans_removed(buf, lnum, 0, (long)line_size); |
| 7 | 3244 #endif |
| 3245 | |
| 3246 /* | |
| 3247 * special case: If there is only one line in the data block it becomes empty. | |
| 3248 * Then we have to remove the entry, pointing to this data block, from the | |
| 3249 * pointer block. If this pointer block also becomes empty, we go up another | |
| 3250 * block, and so on, up to the root if necessary. | |
| 3251 * The line counts in the pointer blocks have already been adjusted by | |
| 3252 * ml_find_line(). | |
| 3253 */ | |
| 3254 if (count == 1) | |
| 3255 { | |
| 3256 mf_free(mfp, hp); /* free the data block */ | |
| 3257 buf->b_ml.ml_locked = NULL; | |
| 3258 | |
| 2823 | 3259 for (stack_idx = buf->b_ml.ml_stack_top - 1; stack_idx >= 0; |
| 3260 --stack_idx) | |
| 7 | 3261 { |
| 3262 buf->b_ml.ml_stack_top = 0; /* stack is invalid when failing */ | |
| 3263 ip = &(buf->b_ml.ml_stack[stack_idx]); | |
| 3264 idx = ip->ip_index; | |
| 3265 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 3266 return FAIL; | |
| 3267 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 3268 if (pp->pb_id != PTR_ID) | |
| 3269 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3270 IEMSG(_("E317: pointer block id wrong 4")); |
| 7 | 3271 mf_put(mfp, hp, FALSE, FALSE); |
| 3272 return FAIL; | |
| 3273 } | |
| 3274 count = --(pp->pb_count); | |
| 3275 if (count == 0) /* the pointer block becomes empty! */ | |
| 3276 mf_free(mfp, hp); | |
| 3277 else | |
| 3278 { | |
| 3279 if (count != idx) /* move entries after the deleted one */ | |
| 3280 mch_memmove(&pp->pb_pointer[idx], &pp->pb_pointer[idx + 1], | |
| 3281 (size_t)(count - idx) * sizeof(PTR_EN)); | |
| 3282 mf_put(mfp, hp, TRUE, FALSE); | |
| 3283 | |
| 3284 buf->b_ml.ml_stack_top = stack_idx; /* truncate stack */ | |
| 1167 | 3285 /* fix line count for rest of blocks in the stack */ |
| 3286 if (buf->b_ml.ml_locked_lineadd != 0) | |
| 7 | 3287 { |
| 3288 ml_lineadd(buf, buf->b_ml.ml_locked_lineadd); | |
| 3289 buf->b_ml.ml_stack[buf->b_ml.ml_stack_top].ip_high += | |
| 1167 | 3290 buf->b_ml.ml_locked_lineadd; |
| 7 | 3291 } |
| 3292 ++(buf->b_ml.ml_stack_top); | |
| 3293 | |
| 3294 break; | |
| 3295 } | |
| 3296 } | |
| 3297 CHECK(stack_idx < 0, _("deleted block 1?")); | |
| 3298 } | |
| 3299 else | |
| 3300 { | |
| 3301 /* | |
| 3302 * delete the text by moving the next lines forwards | |
| 3303 */ | |
| 3304 text_start = dp->db_txt_start; | |
| 3305 mch_memmove((char *)dp + text_start + line_size, | |
| 3306 (char *)dp + text_start, (size_t)(line_start - text_start)); | |
| 3307 | |
| 3308 /* | |
| 3309 * delete the index by moving the next indexes backwards | |
| 3310 * Adjust the indexes for the text movement. | |
| 3311 */ | |
| 3312 for (i = idx; i < count - 1; ++i) | |
| 3313 dp->db_index[i] = dp->db_index[i + 1] + line_size; | |
| 3314 | |
| 3315 dp->db_free += line_size + INDEX_SIZE; | |
| 3316 dp->db_txt_start += line_size; | |
| 3317 --(dp->db_line_count); | |
| 3318 | |
| 3319 /* | |
| 3320 * mark the block dirty and make sure it is in the file (for recovery) | |
| 3321 */ | |
| 3322 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3323 } | |
| 3324 | |
| 3325 #ifdef FEAT_BYTEOFF | |
| 3326 ml_updatechunk(buf, lnum, line_size, ML_CHNK_DELLINE); | |
| 3327 #endif | |
| 3328 return OK; | |
| 3329 } | |
| 3330 | |
| 3331 /* | |
| 3332 * set the B_MARKED flag for line 'lnum' | |
| 3333 */ | |
| 3334 void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3335 ml_setmarked(linenr_T lnum) |
| 7 | 3336 { |
| 3337 bhdr_T *hp; | |
| 3338 DATA_BL *dp; | |
| 3339 /* invalid line number */ | |
| 3340 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count | |
| 3341 || curbuf->b_ml.ml_mfp == NULL) | |
| 3342 return; /* give error message? */ | |
| 3343 | |
| 3344 if (lowest_marked == 0 || lowest_marked > lnum) | |
| 3345 lowest_marked = lnum; | |
| 3346 | |
| 3347 /* | |
| 3348 * find the data block containing the line | |
| 3349 * This also fills the stack with the blocks from the root to the data block | |
| 3350 * This also releases any locked block. | |
| 3351 */ | |
| 3352 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3353 return; /* give error message? */ | |
| 3354 | |
| 3355 dp = (DATA_BL *)(hp->bh_data); | |
| 3356 dp->db_index[lnum - curbuf->b_ml.ml_locked_low] |= DB_MARKED; | |
| 3357 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3358 } | |
| 3359 | |
| 3360 /* | |
| 3361 * find the first line with its B_MARKED flag set | |
| 3362 */ | |
| 3363 linenr_T | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3364 ml_firstmarked(void) |
| 7 | 3365 { |
| 3366 bhdr_T *hp; | |
| 3367 DATA_BL *dp; | |
| 3368 linenr_T lnum; | |
| 3369 int i; | |
| 3370 | |
| 3371 if (curbuf->b_ml.ml_mfp == NULL) | |
| 3372 return (linenr_T) 0; | |
| 3373 | |
| 3374 /* | |
| 3375 * The search starts with lowest_marked line. This is the last line where | |
| 3376 * a mark was found, adjusted by inserting/deleting lines. | |
| 3377 */ | |
| 3378 for (lnum = lowest_marked; lnum <= curbuf->b_ml.ml_line_count; ) | |
| 3379 { | |
| 3380 /* | |
| 3381 * Find the data block containing the line. | |
| 3382 * This also fills the stack with the blocks from the root to the data | |
| 3383 * block This also releases any locked block. | |
| 3384 */ | |
| 3385 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3386 return (linenr_T)0; /* give error message? */ | |
| 3387 | |
| 3388 dp = (DATA_BL *)(hp->bh_data); | |
| 3389 | |
| 3390 for (i = lnum - curbuf->b_ml.ml_locked_low; | |
| 3391 lnum <= curbuf->b_ml.ml_locked_high; ++i, ++lnum) | |
| 3392 if ((dp->db_index[i]) & DB_MARKED) | |
| 3393 { | |
| 3394 (dp->db_index[i]) &= DB_INDEX_MASK; | |
| 3395 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3396 lowest_marked = lnum + 1; | |
| 3397 return lnum; | |
| 3398 } | |
| 3399 } | |
| 3400 | |
| 3401 return (linenr_T) 0; | |
| 3402 } | |
| 3403 | |
| 3404 /* | |
| 3405 * clear all DB_MARKED flags | |
| 3406 */ | |
| 3407 void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3408 ml_clearmarked(void) |
| 7 | 3409 { |
| 3410 bhdr_T *hp; | |
| 3411 DATA_BL *dp; | |
| 3412 linenr_T lnum; | |
| 3413 int i; | |
| 3414 | |
| 3415 if (curbuf->b_ml.ml_mfp == NULL) /* nothing to do */ | |
| 3416 return; | |
| 3417 | |
| 3418 /* | |
| 3419 * The search starts with line lowest_marked. | |
| 3420 */ | |
| 3421 for (lnum = lowest_marked; lnum <= curbuf->b_ml.ml_line_count; ) | |
| 3422 { | |
| 3423 /* | |
| 3424 * Find the data block containing the line. | |
| 3425 * This also fills the stack with the blocks from the root to the data | |
| 3426 * block and releases any locked block. | |
| 3427 */ | |
| 3428 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3429 return; /* give error message? */ | |
| 3430 | |
| 3431 dp = (DATA_BL *)(hp->bh_data); | |
| 3432 | |
| 3433 for (i = lnum - curbuf->b_ml.ml_locked_low; | |
| 3434 lnum <= curbuf->b_ml.ml_locked_high; ++i, ++lnum) | |
| 3435 if ((dp->db_index[i]) & DB_MARKED) | |
| 3436 { | |
| 3437 (dp->db_index[i]) &= DB_INDEX_MASK; | |
| 3438 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3439 } | |
| 3440 } | |
| 3441 | |
| 3442 lowest_marked = 0; | |
| 3443 return; | |
| 3444 } | |
| 3445 | |
| 3446 /* | |
| 3447 * flush ml_line if necessary | |
| 3448 */ | |
| 3449 static void | |
|
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parents:
7803
diff
changeset
|
3450 ml_flush_line(buf_T *buf) |
| 7 | 3451 { |
| 3452 bhdr_T *hp; | |
| 3453 DATA_BL *dp; | |
| 3454 linenr_T lnum; | |
| 3455 char_u *new_line; | |
| 3456 char_u *old_line; | |
| 3457 colnr_T new_len; | |
| 3458 int old_len; | |
| 3459 int extra; | |
| 3460 int idx; | |
| 3461 int start; | |
| 3462 int count; | |
| 3463 int i; | |
|
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diff
changeset
|
3464 static int entered = FALSE; |
| 7 | 3465 |
| 3466 if (buf->b_ml.ml_line_lnum == 0 || buf->b_ml.ml_mfp == NULL) | |
| 3467 return; /* nothing to do */ | |
| 3468 | |
| 3469 if (buf->b_ml.ml_flags & ML_LINE_DIRTY) | |
| 3470 { | |
|
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diff
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|
3471 /* This code doesn't work recursively, but Netbeans may call back here |
|
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diff
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|
3472 * when obtaining the cursor position. */ |
|
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2003
diff
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|
3473 if (entered) |
|
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diff
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|
3474 return; |
|
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diff
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|
3475 entered = TRUE; |
|
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diff
changeset
|
3476 |
| 7 | 3477 lnum = buf->b_ml.ml_line_lnum; |
| 3478 new_line = buf->b_ml.ml_line_ptr; | |
| 3479 | |
| 3480 hp = ml_find_line(buf, lnum, ML_FIND); | |
| 3481 if (hp == NULL) | |
|
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66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3482 IEMSGN(_("E320: Cannot find line %ld"), lnum); |
| 7 | 3483 else |
| 3484 { | |
| 3485 dp = (DATA_BL *)(hp->bh_data); | |
| 3486 idx = lnum - buf->b_ml.ml_locked_low; | |
| 3487 start = ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 3488 old_line = (char_u *)dp + start; | |
| 3489 if (idx == 0) /* line is last in block */ | |
| 3490 old_len = dp->db_txt_end - start; | |
| 3491 else /* text of previous line follows */ | |
| 3492 old_len = (dp->db_index[idx - 1] & DB_INDEX_MASK) - start; | |
| 3493 new_len = (colnr_T)STRLEN(new_line) + 1; | |
| 3494 extra = new_len - old_len; /* negative if lines gets smaller */ | |
| 3495 | |
| 3496 /* | |
| 3497 * if new line fits in data block, replace directly | |
| 3498 */ | |
| 3499 if ((int)dp->db_free >= extra) | |
| 3500 { | |
| 3501 /* if the length changes and there are following lines */ | |
| 3502 count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low + 1; | |
| 3503 if (extra != 0 && idx < count - 1) | |
| 3504 { | |
| 3505 /* move text of following lines */ | |
| 3506 mch_memmove((char *)dp + dp->db_txt_start - extra, | |
| 3507 (char *)dp + dp->db_txt_start, | |
| 3508 (size_t)(start - dp->db_txt_start)); | |
| 3509 | |
| 3510 /* adjust pointers of this and following lines */ | |
| 3511 for (i = idx + 1; i < count; ++i) | |
| 3512 dp->db_index[i] -= extra; | |
| 3513 } | |
| 3514 dp->db_index[idx] -= extra; | |
| 3515 | |
| 3516 /* adjust free space */ | |
| 3517 dp->db_free -= extra; | |
| 3518 dp->db_txt_start -= extra; | |
| 3519 | |
| 3520 /* copy new line into the data block */ | |
| 3521 mch_memmove(old_line - extra, new_line, (size_t)new_len); | |
| 3522 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3523 #ifdef FEAT_BYTEOFF | |
| 3524 /* The else case is already covered by the insert and delete */ | |
| 3525 ml_updatechunk(buf, lnum, (long)extra, ML_CHNK_UPDLINE); | |
| 3526 #endif | |
| 3527 } | |
| 3528 else | |
| 3529 { | |
| 3530 /* | |
| 3531 * Cannot do it in one data block: Delete and append. | |
| 3532 * Append first, because ml_delete_int() cannot delete the | |
| 3533 * last line in a buffer, which causes trouble for a buffer | |
| 3534 * that has only one line. | |
| 3535 * Don't forget to copy the mark! | |
| 3536 */ | |
| 3537 /* How about handling errors??? */ | |
| 3538 (void)ml_append_int(buf, lnum, new_line, new_len, FALSE, | |
| 3539 (dp->db_index[idx] & DB_MARKED)); | |
| 3540 (void)ml_delete_int(buf, lnum, FALSE); | |
| 3541 } | |
| 3542 } | |
| 3543 vim_free(new_line); | |
|
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diff
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|
3544 |
|
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diff
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|
3545 entered = FALSE; |
| 7 | 3546 } |
| 3547 | |
| 3548 buf->b_ml.ml_line_lnum = 0; | |
| 3549 } | |
| 3550 | |
| 3551 /* | |
| 3552 * create a new, empty, data block | |
| 3553 */ | |
| 3554 static bhdr_T * | |
|
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parents:
7803
diff
changeset
|
3555 ml_new_data(memfile_T *mfp, int negative, int page_count) |
| 7 | 3556 { |
| 3557 bhdr_T *hp; | |
| 3558 DATA_BL *dp; | |
| 3559 | |
| 3560 if ((hp = mf_new(mfp, negative, page_count)) == NULL) | |
| 3561 return NULL; | |
| 3562 | |
| 3563 dp = (DATA_BL *)(hp->bh_data); | |
| 3564 dp->db_id = DATA_ID; | |
| 3565 dp->db_txt_start = dp->db_txt_end = page_count * mfp->mf_page_size; | |
| 3566 dp->db_free = dp->db_txt_start - HEADER_SIZE; | |
| 3567 dp->db_line_count = 0; | |
| 3568 | |
| 3569 return hp; | |
| 3570 } | |
| 3571 | |
| 3572 /* | |
| 3573 * create a new, empty, pointer block | |
| 3574 */ | |
| 3575 static bhdr_T * | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3576 ml_new_ptr(memfile_T *mfp) |
| 7 | 3577 { |
| 3578 bhdr_T *hp; | |
| 3579 PTR_BL *pp; | |
| 3580 | |
| 3581 if ((hp = mf_new(mfp, FALSE, 1)) == NULL) | |
| 3582 return NULL; | |
| 3583 | |
| 3584 pp = (PTR_BL *)(hp->bh_data); | |
| 3585 pp->pb_id = PTR_ID; | |
| 3586 pp->pb_count = 0; | |
|
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Bram Moolenaar <bram@vim.org>
parents:
2221
diff
changeset
|
3587 pp->pb_count_max = (short_u)((mfp->mf_page_size - sizeof(PTR_BL)) |
|
6b4879aea261
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Bram Moolenaar <bram@vim.org>
parents:
2221
diff
changeset
|
3588 / sizeof(PTR_EN) + 1); |
| 7 | 3589 |
| 3590 return hp; | |
| 3591 } | |
| 3592 | |
| 3593 /* | |
| 3594 * lookup line 'lnum' in a memline | |
| 3595 * | |
| 3596 * action: if ML_DELETE or ML_INSERT the line count is updated while searching | |
| 3597 * if ML_FLUSH only flush a locked block | |
| 3598 * if ML_FIND just find the line | |
| 3599 * | |
| 3600 * If the block was found it is locked and put in ml_locked. | |
| 3601 * The stack is updated to lead to the locked block. The ip_high field in | |
| 3602 * the stack is updated to reflect the last line in the block AFTER the | |
| 3603 * insert or delete, also if the pointer block has not been updated yet. But | |
| 1167 | 3604 * if ml_locked != NULL ml_locked_lineadd must be added to ip_high. |
| 7 | 3605 * |
| 3606 * return: NULL for failure, pointer to block header otherwise | |
| 3607 */ | |
| 3608 static bhdr_T * | |
|
7827
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3609 ml_find_line(buf_T *buf, linenr_T lnum, int action) |
| 7 | 3610 { |
| 3611 DATA_BL *dp; | |
| 3612 PTR_BL *pp; | |
| 3613 infoptr_T *ip; | |
| 3614 bhdr_T *hp; | |
| 3615 memfile_T *mfp; | |
| 3616 linenr_T t; | |
| 3617 blocknr_T bnum, bnum2; | |
| 3618 int dirty; | |
| 3619 linenr_T low, high; | |
| 3620 int top; | |
| 3621 int page_count; | |
| 3622 int idx; | |
| 3623 | |
| 3624 mfp = buf->b_ml.ml_mfp; | |
| 3625 | |
| 3626 /* | |
| 3627 * If there is a locked block check if the wanted line is in it. | |
| 3628 * If not, flush and release the locked block. | |
| 3629 * Don't do this for ML_INSERT_SAME, because the stack need to be updated. | |
| 3630 * Don't do this for ML_FLUSH, because we want to flush the locked block. | |
| 1066 | 3631 * Don't do this when 'swapfile' is reset, we want to load all the blocks. |
| 7 | 3632 */ |
| 3633 if (buf->b_ml.ml_locked) | |
| 3634 { | |
| 1066 | 3635 if (ML_SIMPLE(action) |
| 3636 && buf->b_ml.ml_locked_low <= lnum | |
| 3637 && buf->b_ml.ml_locked_high >= lnum | |
| 3638 && !mf_dont_release) | |
| 7 | 3639 { |
| 1066 | 3640 /* remember to update pointer blocks and stack later */ |
| 7 | 3641 if (action == ML_INSERT) |
| 3642 { | |
| 3643 ++(buf->b_ml.ml_locked_lineadd); | |
| 3644 ++(buf->b_ml.ml_locked_high); | |
| 3645 } | |
| 3646 else if (action == ML_DELETE) | |
| 3647 { | |
| 3648 --(buf->b_ml.ml_locked_lineadd); | |
| 3649 --(buf->b_ml.ml_locked_high); | |
| 3650 } | |
| 3651 return (buf->b_ml.ml_locked); | |
| 3652 } | |
| 3653 | |
| 3654 mf_put(mfp, buf->b_ml.ml_locked, buf->b_ml.ml_flags & ML_LOCKED_DIRTY, | |
| 3655 buf->b_ml.ml_flags & ML_LOCKED_POS); | |
| 3656 buf->b_ml.ml_locked = NULL; | |
| 3657 | |
| 1167 | 3658 /* |
| 3659 * If lines have been added or deleted in the locked block, need to | |
| 3660 * update the line count in pointer blocks. | |
| 3661 */ | |
| 3662 if (buf->b_ml.ml_locked_lineadd != 0) | |
| 7 | 3663 ml_lineadd(buf, buf->b_ml.ml_locked_lineadd); |
| 3664 } | |
| 3665 | |
| 3666 if (action == ML_FLUSH) /* nothing else to do */ | |
| 3667 return NULL; | |
| 3668 | |
| 3669 bnum = 1; /* start at the root of the tree */ | |
| 3670 page_count = 1; | |
| 3671 low = 1; | |
| 3672 high = buf->b_ml.ml_line_count; | |
| 3673 | |
| 3674 if (action == ML_FIND) /* first try stack entries */ | |
| 3675 { | |
| 3676 for (top = buf->b_ml.ml_stack_top - 1; top >= 0; --top) | |
| 3677 { | |
| 3678 ip = &(buf->b_ml.ml_stack[top]); | |
| 3679 if (ip->ip_low <= lnum && ip->ip_high >= lnum) | |
| 3680 { | |
| 3681 bnum = ip->ip_bnum; | |
| 3682 low = ip->ip_low; | |
| 3683 high = ip->ip_high; | |
| 3684 buf->b_ml.ml_stack_top = top; /* truncate stack at prev entry */ | |
| 3685 break; | |
| 3686 } | |
| 3687 } | |
| 3688 if (top < 0) | |
| 3689 buf->b_ml.ml_stack_top = 0; /* not found, start at the root */ | |
| 3690 } | |
| 3691 else /* ML_DELETE or ML_INSERT */ | |
| 3692 buf->b_ml.ml_stack_top = 0; /* start at the root */ | |
| 3693 | |
| 3694 /* | |
| 3695 * search downwards in the tree until a data block is found | |
| 3696 */ | |
| 3697 for (;;) | |
| 3698 { | |
| 3699 if ((hp = mf_get(mfp, bnum, page_count)) == NULL) | |
| 3700 goto error_noblock; | |
| 3701 | |
| 3702 /* | |
| 3703 * update high for insert/delete | |
| 3704 */ | |
| 3705 if (action == ML_INSERT) | |
| 3706 ++high; | |
| 3707 else if (action == ML_DELETE) | |
| 3708 --high; | |
| 3709 | |
| 3710 dp = (DATA_BL *)(hp->bh_data); | |
| 3711 if (dp->db_id == DATA_ID) /* data block */ | |
| 3712 { | |
| 3713 buf->b_ml.ml_locked = hp; | |
| 3714 buf->b_ml.ml_locked_low = low; | |
| 3715 buf->b_ml.ml_locked_high = high; | |
| 3716 buf->b_ml.ml_locked_lineadd = 0; | |
| 3717 buf->b_ml.ml_flags &= ~(ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3718 return hp; | |
| 3719 } | |
| 3720 | |
| 3721 pp = (PTR_BL *)(dp); /* must be pointer block */ | |
| 3722 if (pp->pb_id != PTR_ID) | |
| 3723 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3724 IEMSG(_("E317: pointer block id wrong")); |
| 7 | 3725 goto error_block; |
| 3726 } | |
| 3727 | |
| 3728 if ((top = ml_add_stack(buf)) < 0) /* add new entry to stack */ | |
| 3729 goto error_block; | |
| 3730 ip = &(buf->b_ml.ml_stack[top]); | |
| 3731 ip->ip_bnum = bnum; | |
| 3732 ip->ip_low = low; | |
| 3733 ip->ip_high = high; | |
| 3734 ip->ip_index = -1; /* index not known yet */ | |
| 3735 | |
| 3736 dirty = FALSE; | |
| 3737 for (idx = 0; idx < (int)pp->pb_count; ++idx) | |
| 3738 { | |
| 3739 t = pp->pb_pointer[idx].pe_line_count; | |
| 3740 CHECK(t == 0, _("pe_line_count is zero")); | |
| 3741 if ((low += t) > lnum) | |
| 3742 { | |
| 3743 ip->ip_index = idx; | |
| 3744 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 3745 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 3746 high = low - 1; | |
| 3747 low -= t; | |
| 3748 | |
| 3749 /* | |
| 3750 * a negative block number may have been changed | |
| 3751 */ | |
| 3752 if (bnum < 0) | |
| 3753 { | |
| 3754 bnum2 = mf_trans_del(mfp, bnum); | |
| 3755 if (bnum != bnum2) | |
| 3756 { | |
| 3757 bnum = bnum2; | |
| 3758 pp->pb_pointer[idx].pe_bnum = bnum; | |
| 3759 dirty = TRUE; | |
| 3760 } | |
| 3761 } | |
| 3762 | |
| 3763 break; | |
| 3764 } | |
| 3765 } | |
| 3766 if (idx >= (int)pp->pb_count) /* past the end: something wrong! */ | |
| 3767 { | |
| 3768 if (lnum > buf->b_ml.ml_line_count) | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3769 IEMSGN(_("E322: line number out of range: %ld past the end"), |
| 7 | 3770 lnum - buf->b_ml.ml_line_count); |
| 3771 | |
| 3772 else | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3773 IEMSGN(_("E323: line count wrong in block %ld"), bnum); |
| 7 | 3774 goto error_block; |
| 3775 } | |
| 3776 if (action == ML_DELETE) | |
| 3777 { | |
| 3778 pp->pb_pointer[idx].pe_line_count--; | |
| 3779 dirty = TRUE; | |
| 3780 } | |
| 3781 else if (action == ML_INSERT) | |
| 3782 { | |
| 3783 pp->pb_pointer[idx].pe_line_count++; | |
| 3784 dirty = TRUE; | |
| 3785 } | |
| 3786 mf_put(mfp, hp, dirty, FALSE); | |
| 3787 } | |
| 3788 | |
| 3789 error_block: | |
| 3790 mf_put(mfp, hp, FALSE, FALSE); | |
| 3791 error_noblock: | |
| 2267 | 3792 /* |
| 3793 * If action is ML_DELETE or ML_INSERT we have to correct the tree for | |
| 3794 * the incremented/decremented line counts, because there won't be a line | |
| 3795 * inserted/deleted after all. | |
| 3796 */ | |
| 7 | 3797 if (action == ML_DELETE) |
| 3798 ml_lineadd(buf, 1); | |
| 3799 else if (action == ML_INSERT) | |
| 3800 ml_lineadd(buf, -1); | |
| 3801 buf->b_ml.ml_stack_top = 0; | |
| 3802 return NULL; | |
| 3803 } | |
| 3804 | |
| 3805 /* | |
| 3806 * add an entry to the info pointer stack | |
| 3807 * | |
| 3808 * return -1 for failure, number of the new entry otherwise | |
| 3809 */ | |
| 3810 static int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3811 ml_add_stack(buf_T *buf) |
| 7 | 3812 { |
| 3813 int top; | |
| 3814 infoptr_T *newstack; | |
| 3815 | |
| 3816 top = buf->b_ml.ml_stack_top; | |
| 3817 | |
| 2267 | 3818 /* may have to increase the stack size */ |
| 7 | 3819 if (top == buf->b_ml.ml_stack_size) |
| 3820 { | |
| 2267 | 3821 CHECK(top > 0, _("Stack size increases")); /* more than 5 levels??? */ |
| 7 | 3822 |
| 3823 newstack = (infoptr_T *)alloc((unsigned)sizeof(infoptr_T) * | |
| 3824 (buf->b_ml.ml_stack_size + STACK_INCR)); | |
| 3825 if (newstack == NULL) | |
| 3826 return -1; | |
| 6989 | 3827 if (top > 0) |
| 3828 mch_memmove(newstack, buf->b_ml.ml_stack, | |
| 1624 | 3829 (size_t)top * sizeof(infoptr_T)); |
| 7 | 3830 vim_free(buf->b_ml.ml_stack); |
| 3831 buf->b_ml.ml_stack = newstack; | |
| 3832 buf->b_ml.ml_stack_size += STACK_INCR; | |
| 3833 } | |
| 3834 | |
| 3835 buf->b_ml.ml_stack_top++; | |
| 3836 return top; | |
| 3837 } | |
| 3838 | |
| 3839 /* | |
| 3840 * Update the pointer blocks on the stack for inserted/deleted lines. | |
| 3841 * The stack itself is also updated. | |
| 3842 * | |
| 3843 * When a insert/delete line action fails, the line is not inserted/deleted, | |
| 3844 * but the pointer blocks have already been updated. That is fixed here by | |
| 3845 * walking through the stack. | |
| 3846 * | |
| 3847 * Count is the number of lines added, negative if lines have been deleted. | |
| 3848 */ | |
| 3849 static void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3850 ml_lineadd(buf_T *buf, int count) |
| 7 | 3851 { |
| 3852 int idx; | |
| 3853 infoptr_T *ip; | |
| 3854 PTR_BL *pp; | |
| 3855 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 3856 bhdr_T *hp; | |
| 3857 | |
| 3858 for (idx = buf->b_ml.ml_stack_top - 1; idx >= 0; --idx) | |
| 3859 { | |
| 3860 ip = &(buf->b_ml.ml_stack[idx]); | |
| 3861 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 3862 break; | |
| 3863 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 3864 if (pp->pb_id != PTR_ID) | |
| 3865 { | |
| 3866 mf_put(mfp, hp, FALSE, FALSE); | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3867 IEMSG(_("E317: pointer block id wrong 2")); |
| 7 | 3868 break; |
| 3869 } | |
| 3870 pp->pb_pointer[ip->ip_index].pe_line_count += count; | |
| 3871 ip->ip_high += count; | |
| 3872 mf_put(mfp, hp, TRUE, FALSE); | |
| 3873 } | |
| 3874 } | |
| 3875 | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
3876 #if defined(HAVE_READLINK) || defined(PROTO) |
| 594 | 3877 /* |
| 3878 * Resolve a symlink in the last component of a file name. | |
| 3879 * Note that f_resolve() does it for every part of the path, we don't do that | |
| 3880 * here. | |
| 3881 * If it worked returns OK and the resolved link in "buf[MAXPATHL]". | |
| 3882 * Otherwise returns FAIL. | |
| 3883 */ | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
3884 int |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3885 resolve_symlink(char_u *fname, char_u *buf) |
| 594 | 3886 { |
| 3887 char_u tmp[MAXPATHL]; | |
| 3888 int ret; | |
| 3889 int depth = 0; | |
| 3890 | |
| 3891 if (fname == NULL) | |
| 3892 return FAIL; | |
| 3893 | |
| 3894 /* Put the result so far in tmp[], starting with the original name. */ | |
| 3895 vim_strncpy(tmp, fname, MAXPATHL - 1); | |
| 3896 | |
| 3897 for (;;) | |
| 3898 { | |
| 3899 /* Limit symlink depth to 100, catch recursive loops. */ | |
| 3900 if (++depth == 100) | |
| 3901 { | |
| 3902 EMSG2(_("E773: Symlink loop for \"%s\""), fname); | |
| 3903 return FAIL; | |
| 3904 } | |
| 3905 | |
| 3906 ret = readlink((char *)tmp, (char *)buf, MAXPATHL - 1); | |
| 3907 if (ret <= 0) | |
| 3908 { | |
| 619 | 3909 if (errno == EINVAL || errno == ENOENT) |
| 594 | 3910 { |
| 619 | 3911 /* Found non-symlink or not existing file, stop here. |
| 1855 | 3912 * When at the first level use the unmodified name, skip the |
| 594 | 3913 * call to vim_FullName(). */ |
| 3914 if (depth == 1) | |
| 3915 return FAIL; | |
| 3916 | |
| 3917 /* Use the resolved name in tmp[]. */ | |
| 3918 break; | |
| 3919 } | |
| 3920 | |
| 3921 /* There must be some error reading links, use original name. */ | |
| 3922 return FAIL; | |
| 3923 } | |
| 3924 buf[ret] = NUL; | |
| 3925 | |
| 3926 /* | |
| 3927 * Check whether the symlink is relative or absolute. | |
| 3928 * If it's relative, build a new path based on the directory | |
| 3929 * portion of the filename (if any) and the path the symlink | |
| 3930 * points to. | |
| 3931 */ | |
| 3932 if (mch_isFullName(buf)) | |
| 3933 STRCPY(tmp, buf); | |
| 3934 else | |
| 3935 { | |
| 3936 char_u *tail; | |
| 3937 | |
| 3938 tail = gettail(tmp); | |
| 3939 if (STRLEN(tail) + STRLEN(buf) >= MAXPATHL) | |
| 3940 return FAIL; | |
| 3941 STRCPY(tail, buf); | |
| 3942 } | |
| 3943 } | |
| 3944 | |
| 3945 /* | |
| 3946 * Try to resolve the full name of the file so that the swapfile name will | |
| 3947 * be consistent even when opening a relative symlink from different | |
| 3948 * working directories. | |
| 3949 */ | |
| 3950 return vim_FullName(tmp, buf, MAXPATHL, TRUE); | |
| 3951 } | |
| 3952 #endif | |
| 3953 | |
| 7 | 3954 /* |
| 460 | 3955 * Make swap file name out of the file name and a directory name. |
| 3956 * Returns pointer to allocated memory or NULL. | |
| 7 | 3957 */ |
| 460 | 3958 char_u * |
|
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parents:
7803
diff
changeset
|
3959 makeswapname( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3960 char_u *fname, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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parents:
7803
diff
changeset
|
3961 char_u *ffname UNUSED, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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parents:
7803
diff
changeset
|
3962 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3963 char_u *dir_name) |
| 7 | 3964 { |
| 3965 char_u *r, *s; | |
|
2145
de0e7ca61893
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Bram Moolenaar <bram@zimbu.org>
parents:
2108
diff
changeset
|
3966 char_u *fname_res = fname; |
| 594 | 3967 #ifdef HAVE_READLINK |
| 3968 char_u fname_buf[MAXPATHL]; | |
| 3969 #endif | |
| 7 | 3970 |
| 3971 #if defined(UNIX) || defined(WIN3264) /* Need _very_ long file names */ | |
|
10996
2f041b367cd9
patch 8.0.0387: compiler warnings
Christian Brabandt <cb@256bit.org>
parents:
10952
diff
changeset
|
3972 int len = (int)STRLEN(dir_name); |
|
10896
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
Christian Brabandt <cb@256bit.org>
parents:
10889
diff
changeset
|
3973 |
|
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
Christian Brabandt <cb@256bit.org>
parents:
10889
diff
changeset
|
3974 s = dir_name + len; |
|
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
Christian Brabandt <cb@256bit.org>
parents:
10889
diff
changeset
|
3975 if (after_pathsep(dir_name, s) && len > 1 && s[-1] == s[-2]) |
| 7 | 3976 { /* Ends with '//', Use Full path */ |
| 3977 r = NULL; | |
| 460 | 3978 if ((s = make_percent_swname(dir_name, fname)) != NULL) |
| 7 | 3979 { |
| 3980 r = modname(s, (char_u *)".swp", FALSE); | |
| 3981 vim_free(s); | |
| 3982 } | |
| 3983 return r; | |
| 3984 } | |
| 3985 #endif | |
| 3986 | |
| 594 | 3987 #ifdef HAVE_READLINK |
| 3988 /* Expand symlink in the file name, so that we put the swap file with the | |
| 3989 * actual file instead of with the symlink. */ | |
| 3990 if (resolve_symlink(fname, fname_buf) == OK) | |
| 3991 fname_res = fname_buf; | |
| 3992 #endif | |
| 3993 | |
| 7 | 3994 r = buf_modname( |
| 3995 (buf->b_p_sn || buf->b_shortname), | |
| 594 | 3996 fname_res, |
| 7 | 3997 (char_u *) |
| 2823 | 3998 #if defined(VMS) |
| 7 | 3999 "_swp", |
| 4000 #else | |
| 4001 ".swp", | |
| 4002 #endif | |
| 4003 /* Prepend a '.' to the swap file name for the current directory. */ | |
|
8212
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commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
4004 dir_name[0] == '.' && dir_name[1] == NUL); |
| 7 | 4005 if (r == NULL) /* out of memory */ |
| 4006 return NULL; | |
| 4007 | |
| 4008 s = get_file_in_dir(r, dir_name); | |
| 4009 vim_free(r); | |
| 4010 return s; | |
| 4011 } | |
| 4012 | |
| 4013 /* | |
| 4014 * Get file name to use for swap file or backup file. | |
| 4015 * Use the name of the edited file "fname" and an entry in the 'dir' or 'bdir' | |
| 4016 * option "dname". | |
| 4017 * - If "dname" is ".", return "fname" (swap file in dir of file). | |
| 4018 * - If "dname" starts with "./", insert "dname" in "fname" (swap file | |
| 4019 * relative to dir of file). | |
| 4020 * - Otherwise, prepend "dname" to the tail of "fname" (swap file in specific | |
| 4021 * dir). | |
| 4022 * | |
| 4023 * The return value is an allocated string and can be NULL. | |
| 4024 */ | |
| 4025 char_u * | |
|
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parents:
7803
diff
changeset
|
4026 get_file_in_dir( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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parents:
7803
diff
changeset
|
4027 char_u *fname, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4028 char_u *dname) /* don't use "dirname", it is a global for Alpha */ |
| 7 | 4029 { |
| 4030 char_u *t; | |
| 4031 char_u *tail; | |
| 4032 char_u *retval; | |
| 4033 int save_char; | |
| 4034 | |
| 4035 tail = gettail(fname); | |
| 4036 | |
| 4037 if (dname[0] == '.' && dname[1] == NUL) | |
| 4038 retval = vim_strsave(fname); | |
| 4039 else if (dname[0] == '.' && vim_ispathsep(dname[1])) | |
| 4040 { | |
| 4041 if (tail == fname) /* no path before file name */ | |
| 4042 retval = concat_fnames(dname + 2, tail, TRUE); | |
| 4043 else | |
| 4044 { | |
| 4045 save_char = *tail; | |
| 4046 *tail = NUL; | |
| 4047 t = concat_fnames(fname, dname + 2, TRUE); | |
| 4048 *tail = save_char; | |
| 4049 if (t == NULL) /* out of memory */ | |
| 4050 retval = NULL; | |
| 4051 else | |
| 4052 { | |
| 4053 retval = concat_fnames(t, tail, TRUE); | |
| 4054 vim_free(t); | |
| 4055 } | |
| 4056 } | |
| 4057 } | |
| 4058 else | |
| 4059 retval = concat_fnames(dname, tail, TRUE); | |
| 4060 | |
| 5432 | 4061 #ifdef WIN3264 |
| 4062 if (retval != NULL) | |
|
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patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10996
diff
changeset
|
4063 for (t = gettail(retval); *t != NUL; MB_PTR_ADV(t)) |
| 5432 | 4064 if (*t == ':') |
| 4065 *t = '%'; | |
| 4066 #endif | |
| 4067 | |
| 7 | 4068 return retval; |
| 4069 } | |
| 4070 | |
| 580 | 4071 /* |
| 4072 * Print the ATTENTION message: info about an existing swap file. | |
| 4073 */ | |
| 4074 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4075 attention_message( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4076 buf_T *buf, /* buffer being edited */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4077 char_u *fname) /* swap file name */ |
| 580 | 4078 { |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4079 stat_T st; |
| 580 | 4080 time_t x, sx; |
| 1001 | 4081 char *p; |
| 580 | 4082 |
| 4083 ++no_wait_return; | |
| 4084 (void)EMSG(_("E325: ATTENTION")); | |
| 4085 MSG_PUTS(_("\nFound a swap file by the name \"")); | |
| 4086 msg_home_replace(fname); | |
| 4087 MSG_PUTS("\"\n"); | |
| 4088 sx = swapfile_info(fname); | |
| 4089 MSG_PUTS(_("While opening file \"")); | |
| 4090 msg_outtrans(buf->b_fname); | |
| 4091 MSG_PUTS("\"\n"); | |
|
14923
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Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
4092 if (mch_stat((char *)buf->b_fname, &st) == -1) |
|
95400980f7c9
patch 8.1.0473: user doesn't notice file does not exist when swap file does
Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
4093 { |
|
95400980f7c9
patch 8.1.0473: user doesn't notice file does not exist when swap file does
Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
4094 MSG_PUTS(_(" CANNOT BE FOUND")); |
|
95400980f7c9
patch 8.1.0473: user doesn't notice file does not exist when swap file does
Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
4095 } |
|
95400980f7c9
patch 8.1.0473: user doesn't notice file does not exist when swap file does
Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
4096 else |
| 580 | 4097 { |
| 4098 MSG_PUTS(_(" dated: ")); | |
| 4099 x = st.st_mtime; /* Manx C can't do &st.st_mtime */ | |
| 1001 | 4100 p = ctime(&x); /* includes '\n' */ |
| 4101 if (p == NULL) | |
| 4102 MSG_PUTS("(invalid)\n"); | |
| 4103 else | |
| 4104 MSG_PUTS(p); | |
| 580 | 4105 if (sx != 0 && x > sx) |
| 4106 MSG_PUTS(_(" NEWER than swap file!\n")); | |
| 4107 } | |
| 4108 /* Some of these messages are long to allow translation to | |
| 4109 * other languages. */ | |
|
7881
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Christian Brabandt <cb@256bit.org>
parents:
7827
diff
changeset
|
4110 MSG_PUTS(_("\n(1) Another program may be editing the same file. If this is the case,\n be careful not to end up with two different instances of the same\n file when making changes. Quit, or continue with caution.\n")); |
| 2703 | 4111 MSG_PUTS(_("(2) An edit session for this file crashed.\n")); |
| 580 | 4112 MSG_PUTS(_(" If this is the case, use \":recover\" or \"vim -r ")); |
| 4113 msg_outtrans(buf->b_fname); | |
| 4114 MSG_PUTS(_("\"\n to recover the changes (see \":help recovery\").\n")); | |
| 4115 MSG_PUTS(_(" If you did this already, delete the swap file \"")); | |
| 4116 msg_outtrans(fname); | |
| 4117 MSG_PUTS(_("\"\n to avoid this message.\n")); | |
| 4118 cmdline_row = msg_row; | |
| 4119 --no_wait_return; | |
| 4120 } | |
| 4121 | |
|
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69517d67421f
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Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
4122 #if defined(FEAT_EVAL) |
| 580 | 4123 /* |
| 4124 * Trigger the SwapExists autocommands. | |
| 4125 * Returns a value for equivalent to do_dialog() (see below): | |
| 4126 * 0: still need to ask for a choice | |
| 4127 * 1: open read-only | |
| 4128 * 2: edit anyway | |
| 4129 * 3: recover | |
| 4130 * 4: delete it | |
| 4131 * 5: quit | |
| 4132 * 6: abort | |
| 4133 */ | |
| 4134 static int | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4135 do_swapexists(buf_T *buf, char_u *fname) |
| 580 | 4136 { |
| 4137 set_vim_var_string(VV_SWAPNAME, fname, -1); | |
| 4138 set_vim_var_string(VV_SWAPCHOICE, NULL, -1); | |
| 4139 | |
| 4140 /* Trigger SwapExists autocommands with <afile> set to the file being | |
| 1856 | 4141 * edited. Disallow changing directory here. */ |
| 4142 ++allbuf_lock; | |
| 580 | 4143 apply_autocmds(EVENT_SWAPEXISTS, buf->b_fname, NULL, FALSE, NULL); |
| 1856 | 4144 --allbuf_lock; |
| 580 | 4145 |
| 4146 set_vim_var_string(VV_SWAPNAME, NULL, -1); | |
| 4147 | |
| 4148 switch (*get_vim_var_str(VV_SWAPCHOICE)) | |
| 4149 { | |
| 4150 case 'o': return 1; | |
| 4151 case 'e': return 2; | |
| 4152 case 'r': return 3; | |
| 4153 case 'd': return 4; | |
| 4154 case 'q': return 5; | |
| 4155 case 'a': return 6; | |
| 4156 } | |
| 4157 | |
| 4158 return 0; | |
| 4159 } | |
| 4160 #endif | |
| 4161 | |
| 7 | 4162 /* |
| 4163 * Find out what name to use for the swap file for buffer 'buf'. | |
| 4164 * | |
| 4165 * Several names are tried to find one that does not exist | |
| 460 | 4166 * Returns the name in allocated memory or NULL. |
| 3158 | 4167 * When out of memory "dirp" is set to NULL. |
| 7 | 4168 * |
| 4169 * Note: If BASENAMELEN is not correct, you will get error messages for | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4170 * not being able to open the swap or undo file |
| 1856 | 4171 * Note: May trigger SwapExists autocmd, pointers may change! |
| 7 | 4172 */ |
| 4173 static char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4174 findswapname( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4175 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4176 char_u **dirp, /* pointer to list of directories */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4177 char_u *old_fname) /* don't give warning for this file name */ |
| 7 | 4178 { |
| 4179 char_u *fname; | |
| 4180 int n; | |
| 4181 char_u *dir_name; | |
| 4182 #ifdef AMIGA | |
| 4183 BPTR fh; | |
| 4184 #endif | |
| 4185 int r; | |
| 5432 | 4186 char_u *buf_fname = buf->b_fname; |
| 7 | 4187 |
|
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
4188 #if !defined(UNIX) |
| 7 | 4189 # define CREATE_DUMMY_FILE |
| 4190 FILE *dummyfd = NULL; | |
| 4191 | |
| 5432 | 4192 # ifdef WIN3264 |
| 4193 if (buf_fname != NULL && !mch_isFullName(buf_fname) | |
| 4194 && vim_strchr(gettail(buf_fname), ':')) | |
| 4195 { | |
| 4196 char_u *t; | |
| 4197 | |
| 4198 buf_fname = vim_strsave(buf_fname); | |
| 4199 if (buf_fname == NULL) | |
| 4200 buf_fname = buf->b_fname; | |
| 4201 else | |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10996
diff
changeset
|
4202 for (t = gettail(buf_fname); *t != NUL; MB_PTR_ADV(t)) |
| 5432 | 4203 if (*t == ':') |
| 4204 *t = '%'; | |
| 4205 } | |
| 4206 # endif | |
| 4207 | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4208 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4209 * If we start editing a new file, e.g. "test.doc", which resides on an |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4210 * MSDOS compatible filesystem, it is possible that the file |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4211 * "test.doc.swp" which we create will be exactly the same file. To avoid |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4212 * this problem we temporarily create "test.doc". Don't do this when the |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4213 * check below for a 8.3 file name is used. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4214 */ |
| 5432 | 4215 if (!(buf->b_p_sn || buf->b_shortname) && buf_fname != NULL |
| 4216 && mch_getperm(buf_fname) < 0) | |
| 4217 dummyfd = mch_fopen((char *)buf_fname, "w"); | |
| 7 | 4218 #endif |
| 4219 | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4220 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4221 * Isolate a directory name from *dirp and put it in dir_name. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4222 * First allocate some memory to put the directory name in. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4223 */ |
| 7 | 4224 dir_name = alloc((unsigned)STRLEN(*dirp) + 1); |
| 3158 | 4225 if (dir_name == NULL) |
| 4226 *dirp = NULL; | |
| 4227 else | |
| 7 | 4228 (void)copy_option_part(dirp, dir_name, 31000, ","); |
| 4229 | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4230 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4231 * we try different names until we find one that does not exist yet |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4232 */ |
| 7 | 4233 if (dir_name == NULL) /* out of memory */ |
| 4234 fname = NULL; | |
| 4235 else | |
| 5432 | 4236 fname = makeswapname(buf_fname, buf->b_ffname, buf, dir_name); |
| 7 | 4237 |
| 4238 for (;;) | |
| 4239 { | |
| 4240 if (fname == NULL) /* must be out of memory */ | |
| 4241 break; | |
| 4242 if ((n = (int)STRLEN(fname)) == 0) /* safety check */ | |
| 4243 { | |
|
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12975
diff
changeset
|
4244 VIM_CLEAR(fname); |
| 7 | 4245 break; |
| 4246 } | |
|
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
4247 #if defined(UNIX) |
| 7 | 4248 /* |
| 4249 * Some systems have a MS-DOS compatible filesystem that use 8.3 character | |
| 4250 * file names. If this is the first try and the swap file name does not fit in | |
| 4251 * 8.3, detect if this is the case, set shortname and try again. | |
| 4252 */ | |
| 4253 if (fname[n - 2] == 'w' && fname[n - 1] == 'p' | |
| 4254 && !(buf->b_p_sn || buf->b_shortname)) | |
| 4255 { | |
| 4256 char_u *tail; | |
| 4257 char_u *fname2; | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4258 stat_T s1, s2; |
| 7 | 4259 int f1, f2; |
| 4260 int created1 = FALSE, created2 = FALSE; | |
| 4261 int same = FALSE; | |
| 4262 | |
| 4263 /* | |
| 4264 * Check if swapfile name does not fit in 8.3: | |
| 4265 * It either contains two dots, is longer than 8 chars, or starts | |
| 4266 * with a dot. | |
| 4267 */ | |
| 5432 | 4268 tail = gettail(buf_fname); |
| 7 | 4269 if ( vim_strchr(tail, '.') != NULL |
| 4270 || STRLEN(tail) > (size_t)8 | |
| 4271 || *gettail(fname) == '.') | |
| 4272 { | |
| 4273 fname2 = alloc(n + 2); | |
| 4274 if (fname2 != NULL) | |
| 4275 { | |
| 4276 STRCPY(fname2, fname); | |
| 4277 /* if fname == "xx.xx.swp", fname2 = "xx.xx.swx" | |
| 4278 * if fname == ".xx.swp", fname2 = ".xx.swpx" | |
| 4279 * if fname == "123456789.swp", fname2 = "12345678x.swp" | |
| 4280 */ | |
| 4281 if (vim_strchr(tail, '.') != NULL) | |
| 4282 fname2[n - 1] = 'x'; | |
| 4283 else if (*gettail(fname) == '.') | |
| 4284 { | |
| 4285 fname2[n] = 'x'; | |
| 4286 fname2[n + 1] = NUL; | |
| 4287 } | |
| 4288 else | |
| 4289 fname2[n - 5] += 1; | |
| 4290 /* | |
| 4291 * may need to create the files to be able to use mch_stat() | |
| 4292 */ | |
| 4293 f1 = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 4294 if (f1 < 0) | |
| 4295 { | |
| 4296 f1 = mch_open_rw((char *)fname, | |
| 4297 O_RDWR|O_CREAT|O_EXCL|O_EXTRA); | |
| 4298 created1 = TRUE; | |
| 4299 } | |
| 4300 if (f1 >= 0) | |
| 4301 { | |
| 4302 f2 = mch_open((char *)fname2, O_RDONLY | O_EXTRA, 0); | |
| 4303 if (f2 < 0) | |
| 4304 { | |
| 4305 f2 = mch_open_rw((char *)fname2, | |
| 4306 O_RDWR|O_CREAT|O_EXCL|O_EXTRA); | |
| 4307 created2 = TRUE; | |
| 4308 } | |
| 4309 if (f2 >= 0) | |
| 4310 { | |
| 4311 /* | |
| 4312 * Both files exist now. If mch_stat() returns the | |
| 4313 * same device and inode they are the same file. | |
| 4314 */ | |
| 4315 if (mch_fstat(f1, &s1) != -1 | |
| 4316 && mch_fstat(f2, &s2) != -1 | |
| 4317 && s1.st_dev == s2.st_dev | |
| 4318 && s1.st_ino == s2.st_ino) | |
| 4319 same = TRUE; | |
| 4320 close(f2); | |
| 4321 if (created2) | |
| 4322 mch_remove(fname2); | |
| 4323 } | |
| 4324 close(f1); | |
| 4325 if (created1) | |
| 4326 mch_remove(fname); | |
| 4327 } | |
| 4328 vim_free(fname2); | |
| 4329 if (same) | |
| 4330 { | |
| 4331 buf->b_shortname = TRUE; | |
| 4332 vim_free(fname); | |
| 5432 | 4333 fname = makeswapname(buf_fname, buf->b_ffname, |
| 460 | 4334 buf, dir_name); |
| 7 | 4335 continue; /* try again with b_shortname set */ |
| 4336 } | |
| 4337 } | |
| 4338 } | |
| 4339 } | |
| 4340 #endif | |
| 4341 /* | |
| 4342 * check if the swapfile already exists | |
| 4343 */ | |
| 4344 if (mch_getperm(fname) < 0) /* it does not exist */ | |
| 4345 { | |
| 4346 #ifdef HAVE_LSTAT | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4347 stat_T sb; |
| 7 | 4348 |
| 4349 /* | |
| 4350 * Extra security check: When a swap file is a symbolic link, this | |
| 4351 * is most likely a symlink attack. | |
| 4352 */ | |
| 4353 if (mch_lstat((char *)fname, &sb) < 0) | |
| 4354 #else | |
| 4355 # ifdef AMIGA | |
| 4356 fh = Open((UBYTE *)fname, (long)MODE_NEWFILE); | |
| 4357 /* | |
| 4358 * on the Amiga mch_getperm() will return -1 when the file exists | |
| 4359 * but is being used by another program. This happens if you edit | |
| 4360 * a file twice. | |
| 4361 */ | |
| 4362 if (fh != (BPTR)NULL) /* can open file, OK */ | |
| 4363 { | |
| 4364 Close(fh); | |
| 4365 mch_remove(fname); | |
| 4366 break; | |
| 4367 } | |
| 4368 if (IoErr() != ERROR_OBJECT_IN_USE | |
| 4369 && IoErr() != ERROR_OBJECT_EXISTS) | |
| 4370 # endif | |
| 4371 #endif | |
| 4372 break; | |
| 4373 } | |
| 4374 | |
| 4375 /* | |
| 4376 * A file name equal to old_fname is OK to use. | |
| 4377 */ | |
| 4378 if (old_fname != NULL && fnamecmp(fname, old_fname) == 0) | |
| 4379 break; | |
| 4380 | |
| 4381 /* | |
| 4382 * get here when file already exists | |
| 4383 */ | |
| 4384 if (fname[n - 2] == 'w' && fname[n - 1] == 'p') /* first try */ | |
| 4385 { | |
| 4386 /* | |
| 4387 * on MS-DOS compatible filesystems (e.g. messydos) file.doc.swp | |
| 4388 * and file.doc are the same file. To guess if this problem is | |
| 4389 * present try if file.doc.swx exists. If it does, we set | |
| 4390 * buf->b_shortname and try file_doc.swp (dots replaced by | |
| 4391 * underscores for this file), and try again. If it doesn't we | |
| 4392 * assume that "file.doc.swp" already exists. | |
| 4393 */ | |
| 4394 if (!(buf->b_p_sn || buf->b_shortname)) /* not tried yet */ | |
| 4395 { | |
| 4396 fname[n - 1] = 'x'; | |
| 4397 r = mch_getperm(fname); /* try "file.swx" */ | |
| 4398 fname[n - 1] = 'p'; | |
| 4399 if (r >= 0) /* "file.swx" seems to exist */ | |
| 4400 { | |
| 4401 buf->b_shortname = TRUE; | |
| 4402 vim_free(fname); | |
| 5432 | 4403 fname = makeswapname(buf_fname, buf->b_ffname, |
| 460 | 4404 buf, dir_name); |
| 7 | 4405 continue; /* try again with '.' replaced with '_' */ |
| 4406 } | |
| 4407 } | |
| 4408 /* | |
| 4409 * If we get here the ".swp" file really exists. | |
| 4410 * Give an error message, unless recovering, no file name, we are | |
| 4411 * viewing a help file or when the path of the file is different | |
| 4412 * (happens when all .swp files are in one directory). | |
| 4413 */ | |
| 5432 | 4414 if (!recoverymode && buf_fname != NULL |
| 43 | 4415 && !buf->b_help && !(buf->b_flags & BF_DUMMY)) |
| 7 | 4416 { |
| 4417 int fd; | |
| 4418 struct block0 b0; | |
| 4419 int differ = FALSE; | |
| 4420 | |
| 4421 /* | |
| 4422 * Try to read block 0 from the swap file to get the original | |
| 4423 * file name (and inode number). | |
| 4424 */ | |
| 4425 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 4426 if (fd >= 0) | |
| 4427 { | |
| 2664 | 4428 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
| 7 | 4429 { |
| 4430 /* | |
| 39 | 4431 * If the swapfile has the same directory as the |
| 4432 * buffer don't compare the directory names, they can | |
| 4433 * have a different mountpoint. | |
| 7 | 4434 */ |
| 39 | 4435 if (b0.b0_flags & B0_SAME_DIR) |
| 4436 { | |
| 4437 if (fnamecmp(gettail(buf->b_ffname), | |
| 4438 gettail(b0.b0_fname)) != 0 | |
| 4439 || !same_directory(fname, buf->b_ffname)) | |
| 594 | 4440 { |
| 4441 #ifdef CHECK_INODE | |
| 4442 /* Symlinks may point to the same file even | |
| 4443 * when the name differs, need to check the | |
| 4444 * inode too. */ | |
| 4445 expand_env(b0.b0_fname, NameBuff, MAXPATHL); | |
| 4446 if (fnamecmp_ino(buf->b_ffname, NameBuff, | |
| 4447 char_to_long(b0.b0_ino))) | |
| 4448 #endif | |
| 4449 differ = TRUE; | |
| 4450 } | |
| 39 | 4451 } |
| 4452 else | |
| 4453 { | |
| 4454 /* | |
| 4455 * The name in the swap file may be | |
| 4456 * "~user/path/file". Expand it first. | |
| 4457 */ | |
| 4458 expand_env(b0.b0_fname, NameBuff, MAXPATHL); | |
| 7 | 4459 #ifdef CHECK_INODE |
| 39 | 4460 if (fnamecmp_ino(buf->b_ffname, NameBuff, |
| 594 | 4461 char_to_long(b0.b0_ino))) |
| 39 | 4462 differ = TRUE; |
| 7 | 4463 #else |
| 39 | 4464 if (fnamecmp(NameBuff, buf->b_ffname) != 0) |
| 4465 differ = TRUE; | |
| 7 | 4466 #endif |
| 39 | 4467 } |
| 7 | 4468 } |
| 4469 close(fd); | |
| 4470 } | |
| 4471 | |
| 4472 /* give the ATTENTION message when there is an old swap file | |
| 4473 * for the current file, and the buffer was not recovered. */ | |
| 4474 if (differ == FALSE && !(curbuf->b_flags & BF_RECOVERED) | |
| 4475 && vim_strchr(p_shm, SHM_ATTENTION) == NULL) | |
| 4476 { | |
| 580 | 4477 #if defined(HAS_SWAP_EXISTS_ACTION) |
| 4478 int choice = 0; | |
| 4479 #endif | |
| 7 | 4480 #ifdef CREATE_DUMMY_FILE |
| 4481 int did_use_dummy = FALSE; | |
| 4482 | |
| 4483 /* Avoid getting a warning for the file being created | |
| 4484 * outside of Vim, it was created at the start of this | |
| 4485 * function. Delete the file now, because Vim might exit | |
| 4486 * here if the window is closed. */ | |
| 4487 if (dummyfd != NULL) | |
| 4488 { | |
| 4489 fclose(dummyfd); | |
| 4490 dummyfd = NULL; | |
| 5432 | 4491 mch_remove(buf_fname); |
| 7 | 4492 did_use_dummy = TRUE; |
| 4493 } | |
| 4494 #endif | |
| 4495 | |
|
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4496 #if (defined(UNIX) || defined(VMS)) && (defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)) |
| 7 | 4497 process_still_running = FALSE; |
| 4498 #endif | |
|
13380
69517d67421f
patch 8.0.1564: too many #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
4499 #if defined(FEAT_EVAL) |
| 580 | 4500 /* |
| 4501 * If there is an SwapExists autocommand and we can handle | |
| 4502 * the response, trigger it. It may return 0 to ask the | |
| 4503 * user anyway. | |
| 4504 */ | |
| 4505 if (swap_exists_action != SEA_NONE | |
| 5432 | 4506 && has_autocmd(EVENT_SWAPEXISTS, buf_fname, buf)) |
| 580 | 4507 choice = do_swapexists(buf, fname); |
| 4508 | |
| 4509 if (choice == 0) | |
| 4510 #endif | |
| 7 | 4511 { |
| 580 | 4512 #ifdef FEAT_GUI |
|
14903
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4513 // If we are supposed to start the GUI but it wasn't |
|
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4514 // completely started yet, start it now. This makes |
|
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4515 // the messages displayed in the Vim window when |
|
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4516 // loading a session from the .gvimrc file. |
| 580 | 4517 if (gui.starting && !gui.in_use) |
| 4518 gui_start(); | |
| 4519 #endif | |
|
14903
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4520 // Show info about the existing swap file. |
| 580 | 4521 attention_message(buf, fname); |
| 4522 | |
|
14903
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4523 // We don't want a 'q' typed at the more-prompt |
|
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4524 // interrupt loading a file. |
| 580 | 4525 got_int = FALSE; |
|
14903
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4526 |
|
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4527 // If vimrc has "simalt ~x" we don't want it to |
|
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4528 // interfere with the prompt here. |
|
14909
c97b4b537572
patch 8.1.0466: autocmd test fails
Bram Moolenaar <Bram@vim.org>
parents:
14903
diff
changeset
|
4529 flush_buffers(FLUSH_TYPEAHEAD); |
| 7 | 4530 } |
| 4531 | |
| 4532 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) | |
| 580 | 4533 if (swap_exists_action != SEA_NONE && choice == 0) |
| 7 | 4534 { |
| 4535 char_u *name; | |
| 4536 | |
| 4537 name = alloc((unsigned)(STRLEN(fname) | |
| 4538 + STRLEN(_("Swap file \"")) | |
| 4539 + STRLEN(_("\" already exists!")) + 5)); | |
| 4540 if (name != NULL) | |
| 4541 { | |
| 4542 STRCPY(name, _("Swap file \"")); | |
| 4543 home_replace(NULL, fname, name + STRLEN(name), | |
| 4544 1000, TRUE); | |
| 4545 STRCAT(name, _("\" already exists!")); | |
| 4546 } | |
| 580 | 4547 choice = do_dialog(VIM_WARNING, |
| 7 | 4548 (char_u *)_("VIM - ATTENTION"), |
| 4549 name == NULL | |
| 4550 ? (char_u *)_("Swap file already exists!") | |
| 4551 : name, | |
|
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4552 # if defined(UNIX) || defined(VMS) |
| 7 | 4553 process_still_running |
| 4554 ? (char_u *)_("&Open Read-Only\n&Edit anyway\n&Recover\n&Quit\n&Abort") : | |
| 4555 # endif | |
| 2684 | 4556 (char_u *)_("&Open Read-Only\n&Edit anyway\n&Recover\n&Delete it\n&Quit\n&Abort"), 1, NULL, FALSE); |
| 580 | 4557 |
|
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4558 # if defined(UNIX) || defined(VMS) |
| 580 | 4559 if (process_still_running && choice >= 4) |
| 4560 choice++; /* Skip missing "Delete it" button */ | |
| 4561 # endif | |
| 4562 vim_free(name); | |
| 4563 | |
| 4564 /* pretend screen didn't scroll, need redraw anyway */ | |
| 4565 msg_scrolled = 0; | |
| 4566 redraw_all_later(NOT_VALID); | |
| 4567 } | |
| 4568 #endif | |
| 4569 | |
| 4570 #if defined(HAS_SWAP_EXISTS_ACTION) | |
| 4571 if (choice > 0) | |
| 4572 { | |
| 4573 switch (choice) | |
| 7 | 4574 { |
| 4575 case 1: | |
| 4576 buf->b_p_ro = TRUE; | |
| 4577 break; | |
| 4578 case 2: | |
| 4579 break; | |
| 4580 case 3: | |
| 4581 swap_exists_action = SEA_RECOVER; | |
| 4582 break; | |
| 4583 case 4: | |
| 580 | 4584 mch_remove(fname); |
| 4585 break; | |
| 4586 case 5: | |
| 7 | 4587 swap_exists_action = SEA_QUIT; |
| 4588 break; | |
| 580 | 4589 case 6: |
| 7 | 4590 swap_exists_action = SEA_QUIT; |
| 4591 got_int = TRUE; | |
| 4592 break; | |
| 4593 } | |
| 4594 | |
| 4595 /* If the file was deleted this fname can be used. */ | |
| 4596 if (mch_getperm(fname) < 0) | |
| 4597 break; | |
| 4598 } | |
| 4599 else | |
| 4600 #endif | |
| 4601 { | |
| 4602 MSG_PUTS("\n"); | |
| 625 | 4603 if (msg_silent == 0) |
| 4604 /* call wait_return() later */ | |
| 4605 need_wait_return = TRUE; | |
| 7 | 4606 } |
| 4607 | |
| 4608 #ifdef CREATE_DUMMY_FILE | |
| 4609 /* Going to try another name, need the dummy file again. */ | |
| 4610 if (did_use_dummy) | |
| 5432 | 4611 dummyfd = mch_fopen((char *)buf_fname, "w"); |
| 7 | 4612 #endif |
| 4613 } | |
| 4614 } | |
| 4615 } | |
| 4616 | |
| 4617 /* | |
| 4618 * Change the ".swp" extension to find another file that can be used. | |
| 4619 * First decrement the last char: ".swo", ".swn", etc. | |
| 4620 * If that still isn't enough decrement the last but one char: ".svz" | |
| 9 | 4621 * Can happen when editing many "No Name" buffers. |
| 7 | 4622 */ |
| 4623 if (fname[n - 1] == 'a') /* ".s?a" */ | |
| 4624 { | |
| 4625 if (fname[n - 2] == 'a') /* ".saa": tried enough, give up */ | |
| 4626 { | |
| 4627 EMSG(_("E326: Too many swap files found")); | |
|
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12975
diff
changeset
|
4628 VIM_CLEAR(fname); |
| 7 | 4629 break; |
| 4630 } | |
| 4631 --fname[n - 2]; /* ".svz", ".suz", etc. */ | |
| 4632 fname[n - 1] = 'z' + 1; | |
| 4633 } | |
| 4634 --fname[n - 1]; /* ".swo", ".swn", etc. */ | |
| 4635 } | |
| 4636 | |
| 4637 vim_free(dir_name); | |
| 4638 #ifdef CREATE_DUMMY_FILE | |
| 4639 if (dummyfd != NULL) /* file has been created temporarily */ | |
| 4640 { | |
| 4641 fclose(dummyfd); | |
| 5432 | 4642 mch_remove(buf_fname); |
| 7 | 4643 } |
| 4644 #endif | |
| 5432 | 4645 #ifdef WIN3264 |
| 4646 if (buf_fname != buf->b_fname) | |
| 4647 vim_free(buf_fname); | |
| 4648 #endif | |
| 7 | 4649 return fname; |
| 4650 } | |
| 4651 | |
| 4652 static int | |
|
7827
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4653 b0_magic_wrong(ZERO_BL *b0p) |
| 7 | 4654 { |
| 4655 return (b0p->b0_magic_long != (long)B0_MAGIC_LONG | |
| 4656 || b0p->b0_magic_int != (int)B0_MAGIC_INT | |
| 4657 || b0p->b0_magic_short != (short)B0_MAGIC_SHORT | |
| 4658 || b0p->b0_magic_char != B0_MAGIC_CHAR); | |
| 4659 } | |
| 4660 | |
| 4661 #ifdef CHECK_INODE | |
| 4662 /* | |
| 4663 * Compare current file name with file name from swap file. | |
| 4664 * Try to use inode numbers when possible. | |
| 4665 * Return non-zero when files are different. | |
| 4666 * | |
| 4667 * When comparing file names a few things have to be taken into consideration: | |
| 4668 * - When working over a network the full path of a file depends on the host. | |
| 4669 * We check the inode number if possible. It is not 100% reliable though, | |
| 4670 * because the device number cannot be used over a network. | |
| 4671 * - When a file does not exist yet (editing a new file) there is no inode | |
| 4672 * number. | |
| 4673 * - The file name in a swap file may not be valid on the current host. The | |
| 4674 * "~user" form is used whenever possible to avoid this. | |
| 4675 * | |
| 4676 * This is getting complicated, let's make a table: | |
| 4677 * | |
| 4678 * ino_c ino_s fname_c fname_s differ = | |
| 4679 * | |
| 4680 * both files exist -> compare inode numbers: | |
| 4681 * != 0 != 0 X X ino_c != ino_s | |
| 4682 * | |
| 4683 * inode number(s) unknown, file names available -> compare file names | |
| 4684 * == 0 X OK OK fname_c != fname_s | |
| 4685 * X == 0 OK OK fname_c != fname_s | |
| 4686 * | |
| 4687 * current file doesn't exist, file for swap file exist, file name(s) not | |
| 4688 * available -> probably different | |
| 4689 * == 0 != 0 FAIL X TRUE | |
| 4690 * == 0 != 0 X FAIL TRUE | |
| 4691 * | |
| 4692 * current file exists, inode for swap unknown, file name(s) not | |
| 4693 * available -> probably different | |
| 4694 * != 0 == 0 FAIL X TRUE | |
| 4695 * != 0 == 0 X FAIL TRUE | |
| 4696 * | |
| 4697 * current file doesn't exist, inode for swap unknown, one file name not | |
| 4698 * available -> probably different | |
| 4699 * == 0 == 0 FAIL OK TRUE | |
| 4700 * == 0 == 0 OK FAIL TRUE | |
| 4701 * | |
| 4702 * current file doesn't exist, inode for swap unknown, both file names not | |
|
13896
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4703 * available -> compare file names |
|
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4704 * == 0 == 0 FAIL FAIL fname_c != fname_s |
| 7 | 4705 * |
| 4706 * Note that when the ino_t is 64 bits, only the last 32 will be used. This | |
| 4707 * can't be changed without making the block 0 incompatible with 32 bit | |
| 4708 * versions. | |
| 4709 */ | |
| 4710 | |
| 4711 static int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4712 fnamecmp_ino( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4713 char_u *fname_c, /* current file name */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4714 char_u *fname_s, /* file name from swap file */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4715 long ino_block0) |
| 7 | 4716 { |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4717 stat_T st; |
| 7 | 4718 ino_t ino_c = 0; /* ino of current file */ |
| 4719 ino_t ino_s; /* ino of file from swap file */ | |
| 4720 char_u buf_c[MAXPATHL]; /* full path of fname_c */ | |
| 4721 char_u buf_s[MAXPATHL]; /* full path of fname_s */ | |
| 4722 int retval_c; /* flag: buf_c valid */ | |
| 4723 int retval_s; /* flag: buf_s valid */ | |
| 4724 | |
| 4725 if (mch_stat((char *)fname_c, &st) == 0) | |
| 4726 ino_c = (ino_t)st.st_ino; | |
| 4727 | |
| 4728 /* | |
| 4729 * First we try to get the inode from the file name, because the inode in | |
| 4730 * the swap file may be outdated. If that fails (e.g. this path is not | |
| 4731 * valid on this machine), use the inode from block 0. | |
| 4732 */ | |
| 4733 if (mch_stat((char *)fname_s, &st) == 0) | |
| 4734 ino_s = (ino_t)st.st_ino; | |
| 4735 else | |
| 4736 ino_s = (ino_t)ino_block0; | |
| 4737 | |
| 4738 if (ino_c && ino_s) | |
| 4739 return (ino_c != ino_s); | |
| 4740 | |
| 4741 /* | |
| 4742 * One of the inode numbers is unknown, try a forced vim_FullName() and | |
| 4743 * compare the file names. | |
| 4744 */ | |
| 4745 retval_c = vim_FullName(fname_c, buf_c, MAXPATHL, TRUE); | |
| 4746 retval_s = vim_FullName(fname_s, buf_s, MAXPATHL, TRUE); | |
| 4747 if (retval_c == OK && retval_s == OK) | |
|
13896
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4748 return STRCMP(buf_c, buf_s) != 0; |
| 7 | 4749 |
| 4750 /* | |
| 4751 * Can't compare inodes or file names, guess that the files are different, | |
|
13896
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4752 * unless both appear not to exist at all, then compare with the file name |
|
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4753 * in the swap file. |
| 7 | 4754 */ |
| 4755 if (ino_s == 0 && ino_c == 0 && retval_c == FAIL && retval_s == FAIL) | |
|
13896
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4756 return STRCMP(fname_c, fname_s) != 0; |
| 7 | 4757 return TRUE; |
| 4758 } | |
| 4759 #endif /* CHECK_INODE */ | |
| 4760 | |
| 4761 /* | |
| 4762 * Move a long integer into a four byte character array. | |
| 4763 * Used for machine independency in block zero. | |
| 4764 */ | |
| 4765 static void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4766 long_to_char(long n, char_u *s) |
| 7 | 4767 { |
| 4768 s[0] = (char_u)(n & 0xff); | |
| 4769 n = (unsigned)n >> 8; | |
| 4770 s[1] = (char_u)(n & 0xff); | |
| 4771 n = (unsigned)n >> 8; | |
| 4772 s[2] = (char_u)(n & 0xff); | |
| 4773 n = (unsigned)n >> 8; | |
| 4774 s[3] = (char_u)(n & 0xff); | |
| 4775 } | |
| 4776 | |
| 4777 static long | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4778 char_to_long(char_u *s) |
| 7 | 4779 { |
| 4780 long retval; | |
| 4781 | |
| 4782 retval = s[3]; | |
| 4783 retval <<= 8; | |
| 4784 retval |= s[2]; | |
| 4785 retval <<= 8; | |
| 4786 retval |= s[1]; | |
| 4787 retval <<= 8; | |
| 4788 retval |= s[0]; | |
| 4789 | |
| 4790 return retval; | |
| 4791 } | |
| 4792 | |
| 39 | 4793 /* |
| 4794 * Set the flags in the first block of the swap file: | |
| 4795 * - file is modified or not: buf->b_changed | |
| 4796 * - 'fileformat' | |
| 4797 * - 'fileencoding' | |
| 4798 */ | |
| 7 | 4799 void |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4800 ml_setflags(buf_T *buf) |
| 7 | 4801 { |
| 4802 bhdr_T *hp; | |
| 4803 ZERO_BL *b0p; | |
| 4804 | |
| 4805 if (!buf->b_ml.ml_mfp) | |
| 4806 return; | |
| 4807 for (hp = buf->b_ml.ml_mfp->mf_used_last; hp != NULL; hp = hp->bh_prev) | |
| 4808 { | |
| 4809 if (hp->bh_bnum == 0) | |
| 4810 { | |
| 4811 b0p = (ZERO_BL *)(hp->bh_data); | |
| 39 | 4812 b0p->b0_dirty = buf->b_changed ? B0_DIRTY : 0; |
| 4813 b0p->b0_flags = (b0p->b0_flags & ~B0_FF_MASK) | |
| 4814 | (get_fileformat(buf) + 1); | |
| 4815 #ifdef FEAT_MBYTE | |
| 4816 add_b0_fenc(b0p, buf); | |
| 4817 #endif | |
| 7 | 4818 hp->bh_flags |= BH_DIRTY; |
| 4819 mf_sync(buf->b_ml.ml_mfp, MFS_ZERO); | |
| 4820 break; | |
| 4821 } | |
| 4822 } | |
| 4823 } | |
| 4824 | |
| 2267 | 4825 #if defined(FEAT_CRYPT) || defined(PROTO) |
| 4826 /* | |
| 4827 * If "data" points to a data block encrypt the text in it and return a copy | |
| 4828 * in allocated memory. Return NULL when out of memory. | |
| 4829 * Otherwise return "data". | |
| 4830 */ | |
| 4831 char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4832 ml_encrypt_data( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4833 memfile_T *mfp, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4834 char_u *data, |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4835 off_T offset, |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4836 unsigned size) |
| 2267 | 4837 { |
| 4838 DATA_BL *dp = (DATA_BL *)data; | |
| 4839 char_u *head_end; | |
| 4840 char_u *text_start; | |
| 4841 char_u *new_data; | |
| 4842 int text_len; | |
| 6122 | 4843 cryptstate_T *state; |
| 2267 | 4844 |
| 4845 if (dp->db_id != DATA_ID) | |
| 4846 return data; | |
| 4847 | |
| 6817 | 4848 state = ml_crypt_prepare(mfp, offset, FALSE); |
| 4849 if (state == NULL) | |
| 4850 return data; | |
| 4851 | |
| 2267 | 4852 new_data = (char_u *)alloc(size); |
| 4853 if (new_data == NULL) | |
| 4854 return NULL; | |
| 4855 head_end = (char_u *)(&dp->db_index[dp->db_line_count]); | |
| 4856 text_start = (char_u *)dp + dp->db_txt_start; | |
| 4857 text_len = size - dp->db_txt_start; | |
| 4858 | |
| 4859 /* Copy the header and the text. */ | |
| 4860 mch_memmove(new_data, dp, head_end - (char_u *)dp); | |
| 4861 | |
| 4862 /* Encrypt the text. */ | |
| 6122 | 4863 crypt_encode(state, text_start, text_len, new_data + dp->db_txt_start); |
| 4864 crypt_free_state(state); | |
| 2267 | 4865 |
| 4866 /* Clear the gap. */ | |
| 4867 if (head_end < text_start) | |
| 4868 vim_memset(new_data + (head_end - data), 0, text_start - head_end); | |
| 4869 | |
| 4870 return new_data; | |
| 4871 } | |
| 4872 | |
| 4873 /* | |
| 6817 | 4874 * Decrypt the text in "data" if it points to an encrypted data block. |
| 2267 | 4875 */ |
| 4876 void | |
|
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41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4877 ml_decrypt_data( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4878 memfile_T *mfp, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4879 char_u *data, |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4880 off_T offset, |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4881 unsigned size) |
| 2267 | 4882 { |
| 4883 DATA_BL *dp = (DATA_BL *)data; | |
| 4884 char_u *head_end; | |
| 4885 char_u *text_start; | |
| 4886 int text_len; | |
| 6122 | 4887 cryptstate_T *state; |
| 2267 | 4888 |
| 4889 if (dp->db_id == DATA_ID) | |
| 4890 { | |
| 4891 head_end = (char_u *)(&dp->db_index[dp->db_line_count]); | |
| 4892 text_start = (char_u *)dp + dp->db_txt_start; | |
| 4893 text_len = dp->db_txt_end - dp->db_txt_start; | |
| 4894 | |
| 4895 if (head_end > text_start || dp->db_txt_start > size | |
| 4896 || dp->db_txt_end > size) | |
| 4897 return; /* data was messed up */ | |
| 4898 | |
| 6122 | 4899 state = ml_crypt_prepare(mfp, offset, TRUE); |
| 6817 | 4900 if (state != NULL) |
| 4901 { | |
| 4902 /* Decrypt the text in place. */ | |
| 4903 crypt_decode_inplace(state, text_start, text_len); | |
| 4904 crypt_free_state(state); | |
| 4905 } | |
| 2267 | 4906 } |
| 4907 } | |
| 4908 | |
| 4909 /* | |
| 4910 * Prepare for encryption/decryption, using the key, seed and offset. | |
| 6122 | 4911 * Return an allocated cryptstate_T *. |
| 2267 | 4912 */ |
| 6122 | 4913 static cryptstate_T * |
|
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f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4914 ml_crypt_prepare(memfile_T *mfp, off_T offset, int reading) |
| 2267 | 4915 { |
| 4916 buf_T *buf = mfp->mf_buffer; | |
| 4917 char_u salt[50]; | |
| 6122 | 4918 int method_nr; |
| 2267 | 4919 char_u *key; |
| 4920 char_u *seed; | |
| 4921 | |
| 4922 if (reading && mfp->mf_old_key != NULL) | |
| 4923 { | |
| 4924 /* Reading back blocks with the previous key/method/seed. */ | |
| 6122 | 4925 method_nr = mfp->mf_old_cm; |
| 2267 | 4926 key = mfp->mf_old_key; |
| 4927 seed = mfp->mf_old_seed; | |
| 4928 } | |
| 4929 else | |
| 4930 { | |
| 6122 | 4931 method_nr = crypt_get_method_nr(buf); |
| 2267 | 4932 key = buf->b_p_key; |
| 4933 seed = mfp->mf_seed; | |
| 4934 } | |
| 6817 | 4935 if (*key == NUL) |
| 4936 return NULL; | |
| 2267 | 4937 |
| 6122 | 4938 if (method_nr == CRYPT_M_ZIP) |
| 2267 | 4939 { |
| 6122 | 4940 /* For PKzip: Append the offset to the key, so that we use a different |
| 4941 * key for every block. */ | |
| 2267 | 4942 vim_snprintf((char *)salt, sizeof(salt), "%s%ld", key, (long)offset); |
| 6122 | 4943 return crypt_create(method_nr, salt, NULL, 0, NULL, 0); |
| 2267 | 4944 } |
| 6122 | 4945 |
| 4946 /* Using blowfish or better: add salt and seed. We use the byte offset | |
| 4947 * of the block for the salt. */ | |
| 4948 vim_snprintf((char *)salt, sizeof(salt), "%ld", (long)offset); | |
| 4949 return crypt_create(method_nr, key, salt, (int)STRLEN(salt), | |
| 4950 seed, MF_SEED_LEN); | |
| 2267 | 4951 } |
| 4952 | |
| 4953 #endif | |
| 4954 | |
| 4955 | |
| 7 | 4956 #if defined(FEAT_BYTEOFF) || defined(PROTO) |
| 4957 | |
| 4958 #define MLCS_MAXL 800 /* max no of lines in chunk */ | |
| 4959 #define MLCS_MINL 400 /* should be half of MLCS_MAXL */ | |
| 4960 | |
| 4961 /* | |
|
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6bc102a4bff8
Fix memory access to 'cryptmethod' during recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
4962 * Keep information for finding byte offset of a line, updtype may be one of: |
| 7 | 4963 * ML_CHNK_ADDLINE: Add len to parent chunk, possibly splitting it |
| 4964 * Careful: ML_CHNK_ADDLINE may cause ml_find_line() to be called. | |
| 4965 * ML_CHNK_DELLINE: Subtract len from parent chunk, possibly deleting it | |
| 4966 * ML_CHNK_UPDLINE: Add len to parent chunk, as a signed entity. | |
| 4967 */ | |
| 4968 static void | |
|
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41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4969 ml_updatechunk( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4970 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4971 linenr_T line, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4972 long len, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4973 int updtype) |
| 7 | 4974 { |
| 4975 static buf_T *ml_upd_lastbuf = NULL; | |
| 4976 static linenr_T ml_upd_lastline; | |
| 4977 static linenr_T ml_upd_lastcurline; | |
| 4978 static int ml_upd_lastcurix; | |
| 4979 | |
| 4980 linenr_T curline = ml_upd_lastcurline; | |
| 4981 int curix = ml_upd_lastcurix; | |
| 4982 long size; | |
| 4983 chunksize_T *curchnk; | |
| 4984 int rest; | |
| 4985 bhdr_T *hp; | |
| 4986 DATA_BL *dp; | |
| 4987 | |
| 4988 if (buf->b_ml.ml_usedchunks == -1 || len == 0) | |
| 4989 return; | |
| 4990 if (buf->b_ml.ml_chunksize == NULL) | |
| 4991 { | |
| 4992 buf->b_ml.ml_chunksize = (chunksize_T *) | |
| 4993 alloc((unsigned)sizeof(chunksize_T) * 100); | |
| 4994 if (buf->b_ml.ml_chunksize == NULL) | |
| 4995 { | |
| 4996 buf->b_ml.ml_usedchunks = -1; | |
| 4997 return; | |
| 4998 } | |
| 4999 buf->b_ml.ml_numchunks = 100; | |
| 5000 buf->b_ml.ml_usedchunks = 1; | |
| 5001 buf->b_ml.ml_chunksize[0].mlcs_numlines = 1; | |
| 5002 buf->b_ml.ml_chunksize[0].mlcs_totalsize = 1; | |
| 5003 } | |
| 5004 | |
| 5005 if (updtype == ML_CHNK_UPDLINE && buf->b_ml.ml_line_count == 1) | |
| 5006 { | |
| 5007 /* | |
| 5008 * First line in empty buffer from ml_flush_line() -- reset | |
| 5009 */ | |
| 5010 buf->b_ml.ml_usedchunks = 1; | |
| 5011 buf->b_ml.ml_chunksize[0].mlcs_numlines = 1; | |
| 5012 buf->b_ml.ml_chunksize[0].mlcs_totalsize = | |
| 5013 (long)STRLEN(buf->b_ml.ml_line_ptr) + 1; | |
| 5014 return; | |
| 5015 } | |
| 5016 | |
| 5017 /* | |
| 5018 * Find chunk that our line belongs to, curline will be at start of the | |
| 5019 * chunk. | |
| 5020 */ | |
| 5021 if (buf != ml_upd_lastbuf || line != ml_upd_lastline + 1 | |
| 5022 || updtype != ML_CHNK_ADDLINE) | |
| 5023 { | |
| 5024 for (curline = 1, curix = 0; | |
| 5025 curix < buf->b_ml.ml_usedchunks - 1 | |
| 5026 && line >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5027 curix++) | |
| 5028 { | |
| 5029 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5030 } | |
| 5031 } | |
|
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patch 8.1.0501: cppcheck warns for using array index before bounds check
Bram Moolenaar <Bram@vim.org>
parents:
14923
diff
changeset
|
5032 else if (curix < buf->b_ml.ml_usedchunks - 1 |
|
c98810dfebaf
patch 8.1.0501: cppcheck warns for using array index before bounds check
Bram Moolenaar <Bram@vim.org>
parents:
14923
diff
changeset
|
5033 && line >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines) |
| 7 | 5034 { |
| 5035 /* Adjust cached curix & curline */ | |
| 5036 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5037 curix++; | |
| 5038 } | |
| 5039 curchnk = buf->b_ml.ml_chunksize + curix; | |
| 5040 | |
| 5041 if (updtype == ML_CHNK_DELLINE) | |
| 1030 | 5042 len = -len; |
| 7 | 5043 curchnk->mlcs_totalsize += len; |
| 5044 if (updtype == ML_CHNK_ADDLINE) | |
| 5045 { | |
| 5046 curchnk->mlcs_numlines++; | |
| 5047 | |
| 5048 /* May resize here so we don't have to do it in both cases below */ | |
| 5049 if (buf->b_ml.ml_usedchunks + 1 >= buf->b_ml.ml_numchunks) | |
| 5050 { | |
| 6596 | 5051 chunksize_T *t_chunksize = buf->b_ml.ml_chunksize; |
| 5052 | |
| 7 | 5053 buf->b_ml.ml_numchunks = buf->b_ml.ml_numchunks * 3 / 2; |
| 5054 buf->b_ml.ml_chunksize = (chunksize_T *) | |
| 5055 vim_realloc(buf->b_ml.ml_chunksize, | |
| 5056 sizeof(chunksize_T) * buf->b_ml.ml_numchunks); | |
| 5057 if (buf->b_ml.ml_chunksize == NULL) | |
| 5058 { | |
| 5059 /* Hmmmm, Give up on offset for this buffer */ | |
| 6596 | 5060 vim_free(t_chunksize); |
| 7 | 5061 buf->b_ml.ml_usedchunks = -1; |
| 5062 return; | |
| 5063 } | |
| 5064 } | |
| 5065 | |
| 5066 if (buf->b_ml.ml_chunksize[curix].mlcs_numlines >= MLCS_MAXL) | |
| 5067 { | |
| 5068 int count; /* number of entries in block */ | |
| 5069 int idx; | |
| 5070 int text_end; | |
| 5071 int linecnt; | |
| 5072 | |
| 5073 mch_memmove(buf->b_ml.ml_chunksize + curix + 1, | |
| 5074 buf->b_ml.ml_chunksize + curix, | |
| 5075 (buf->b_ml.ml_usedchunks - curix) * | |
| 5076 sizeof(chunksize_T)); | |
| 1855 | 5077 /* Compute length of first half of lines in the split chunk */ |
| 7 | 5078 size = 0; |
| 5079 linecnt = 0; | |
| 5080 while (curline < buf->b_ml.ml_line_count | |
| 5081 && linecnt < MLCS_MINL) | |
| 5082 { | |
| 5083 if ((hp = ml_find_line(buf, curline, ML_FIND)) == NULL) | |
| 5084 { | |
| 5085 buf->b_ml.ml_usedchunks = -1; | |
| 5086 return; | |
| 5087 } | |
| 5088 dp = (DATA_BL *)(hp->bh_data); | |
| 5089 count = (long)(buf->b_ml.ml_locked_high) - | |
| 5090 (long)(buf->b_ml.ml_locked_low) + 1; | |
| 5091 idx = curline - buf->b_ml.ml_locked_low; | |
| 5092 curline = buf->b_ml.ml_locked_high + 1; | |
| 5093 if (idx == 0)/* first line in block, text at the end */ | |
| 5094 text_end = dp->db_txt_end; | |
| 5095 else | |
| 5096 text_end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); | |
| 5097 /* Compute index of last line to use in this MEMLINE */ | |
| 5098 rest = count - idx; | |
| 5099 if (linecnt + rest > MLCS_MINL) | |
| 5100 { | |
| 5101 idx += MLCS_MINL - linecnt - 1; | |
| 5102 linecnt = MLCS_MINL; | |
| 5103 } | |
| 5104 else | |
| 5105 { | |
| 5106 idx = count - 1; | |
| 5107 linecnt += rest; | |
| 5108 } | |
| 5109 size += text_end - ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 5110 } | |
| 5111 buf->b_ml.ml_chunksize[curix].mlcs_numlines = linecnt; | |
| 5112 buf->b_ml.ml_chunksize[curix + 1].mlcs_numlines -= linecnt; | |
| 5113 buf->b_ml.ml_chunksize[curix].mlcs_totalsize = size; | |
| 5114 buf->b_ml.ml_chunksize[curix + 1].mlcs_totalsize -= size; | |
| 5115 buf->b_ml.ml_usedchunks++; | |
| 5116 ml_upd_lastbuf = NULL; /* Force recalc of curix & curline */ | |
| 5117 return; | |
| 5118 } | |
| 5119 else if (buf->b_ml.ml_chunksize[curix].mlcs_numlines >= MLCS_MINL | |
| 5120 && curix == buf->b_ml.ml_usedchunks - 1 | |
| 5121 && buf->b_ml.ml_line_count - line <= 1) | |
| 5122 { | |
| 5123 /* | |
| 5124 * We are in the last chunk and it is cheap to crate a new one | |
| 5125 * after this. Do it now to avoid the loop above later on | |
| 5126 */ | |
| 5127 curchnk = buf->b_ml.ml_chunksize + curix + 1; | |
| 5128 buf->b_ml.ml_usedchunks++; | |
| 5129 if (line == buf->b_ml.ml_line_count) | |
| 5130 { | |
| 5131 curchnk->mlcs_numlines = 0; | |
| 5132 curchnk->mlcs_totalsize = 0; | |
| 5133 } | |
| 5134 else | |
| 5135 { | |
| 5136 /* | |
| 5137 * Line is just prior to last, move count for last | |
| 5138 * This is the common case when loading a new file | |
| 5139 */ | |
| 5140 hp = ml_find_line(buf, buf->b_ml.ml_line_count, ML_FIND); | |
| 5141 if (hp == NULL) | |
| 5142 { | |
| 5143 buf->b_ml.ml_usedchunks = -1; | |
| 5144 return; | |
| 5145 } | |
| 5146 dp = (DATA_BL *)(hp->bh_data); | |
| 5147 if (dp->db_line_count == 1) | |
| 5148 rest = dp->db_txt_end - dp->db_txt_start; | |
| 5149 else | |
| 5150 rest = | |
| 5151 ((dp->db_index[dp->db_line_count - 2]) & DB_INDEX_MASK) | |
| 5152 - dp->db_txt_start; | |
| 5153 curchnk->mlcs_totalsize = rest; | |
| 5154 curchnk->mlcs_numlines = 1; | |
| 5155 curchnk[-1].mlcs_totalsize -= rest; | |
| 5156 curchnk[-1].mlcs_numlines -= 1; | |
| 5157 } | |
| 5158 } | |
| 5159 } | |
| 5160 else if (updtype == ML_CHNK_DELLINE) | |
| 5161 { | |
| 5162 curchnk->mlcs_numlines--; | |
| 5163 ml_upd_lastbuf = NULL; /* Force recalc of curix & curline */ | |
| 5164 if (curix < (buf->b_ml.ml_usedchunks - 1) | |
| 5165 && (curchnk->mlcs_numlines + curchnk[1].mlcs_numlines) | |
| 5166 <= MLCS_MINL) | |
| 5167 { | |
| 5168 curix++; | |
| 5169 curchnk = buf->b_ml.ml_chunksize + curix; | |
| 5170 } | |
| 5171 else if (curix == 0 && curchnk->mlcs_numlines <= 0) | |
| 5172 { | |
| 5173 buf->b_ml.ml_usedchunks--; | |
| 5174 mch_memmove(buf->b_ml.ml_chunksize, buf->b_ml.ml_chunksize + 1, | |
| 5175 buf->b_ml.ml_usedchunks * sizeof(chunksize_T)); | |
| 5176 return; | |
| 5177 } | |
| 5178 else if (curix == 0 || (curchnk->mlcs_numlines > 10 | |
| 5179 && (curchnk->mlcs_numlines + curchnk[-1].mlcs_numlines) | |
| 5180 > MLCS_MINL)) | |
| 5181 { | |
| 5182 return; | |
| 5183 } | |
| 5184 | |
| 5185 /* Collapse chunks */ | |
| 5186 curchnk[-1].mlcs_numlines += curchnk->mlcs_numlines; | |
| 5187 curchnk[-1].mlcs_totalsize += curchnk->mlcs_totalsize; | |
| 5188 buf->b_ml.ml_usedchunks--; | |
| 5189 if (curix < buf->b_ml.ml_usedchunks) | |
| 5190 { | |
| 5191 mch_memmove(buf->b_ml.ml_chunksize + curix, | |
| 5192 buf->b_ml.ml_chunksize + curix + 1, | |
| 5193 (buf->b_ml.ml_usedchunks - curix) * | |
| 5194 sizeof(chunksize_T)); | |
| 5195 } | |
| 5196 return; | |
| 5197 } | |
| 5198 ml_upd_lastbuf = buf; | |
| 5199 ml_upd_lastline = line; | |
| 5200 ml_upd_lastcurline = curline; | |
| 5201 ml_upd_lastcurix = curix; | |
| 5202 } | |
| 5203 | |
| 5204 /* | |
| 5205 * Find offset for line or line with offset. | |
| 169 | 5206 * Find line with offset if "lnum" is 0; return remaining offset in offp |
| 5207 * Find offset of line if "lnum" > 0 | |
| 7 | 5208 * return -1 if information is not available |
| 5209 */ | |
| 5210 long | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5211 ml_find_line_or_offset(buf_T *buf, linenr_T lnum, long *offp) |
| 7 | 5212 { |
| 5213 linenr_T curline; | |
| 5214 int curix; | |
| 5215 long size; | |
| 5216 bhdr_T *hp; | |
| 5217 DATA_BL *dp; | |
| 5218 int count; /* number of entries in block */ | |
| 5219 int idx; | |
| 5220 int start_idx; | |
| 5221 int text_end; | |
| 5222 long offset; | |
| 5223 int len; | |
| 5224 int ffdos = (get_fileformat(buf) == EOL_DOS); | |
| 5225 int extra = 0; | |
| 5226 | |
| 169 | 5227 /* take care of cached line first */ |
| 5228 ml_flush_line(curbuf); | |
| 5229 | |
| 7 | 5230 if (buf->b_ml.ml_usedchunks == -1 |
| 5231 || buf->b_ml.ml_chunksize == NULL | |
| 169 | 5232 || lnum < 0) |
| 7 | 5233 return -1; |
| 5234 | |
| 5235 if (offp == NULL) | |
| 5236 offset = 0; | |
| 5237 else | |
| 5238 offset = *offp; | |
| 169 | 5239 if (lnum == 0 && offset <= 0) |
| 7 | 5240 return 1; /* Not a "find offset" and offset 0 _must_ be in line 1 */ |
| 5241 /* | |
| 5242 * Find the last chunk before the one containing our line. Last chunk is | |
| 5243 * special because it will never qualify | |
| 5244 */ | |
| 5245 curline = 1; | |
| 5246 curix = size = 0; | |
| 5247 while (curix < buf->b_ml.ml_usedchunks - 1 | |
| 169 | 5248 && ((lnum != 0 |
| 5249 && lnum >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines) | |
| 7 | 5250 || (offset != 0 |
| 5251 && offset > size + buf->b_ml.ml_chunksize[curix].mlcs_totalsize | |
| 5252 + ffdos * buf->b_ml.ml_chunksize[curix].mlcs_numlines))) | |
| 5253 { | |
| 5254 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5255 size += buf->b_ml.ml_chunksize[curix].mlcs_totalsize; | |
| 5256 if (offset && ffdos) | |
| 5257 size += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5258 curix++; | |
| 5259 } | |
| 5260 | |
| 169 | 5261 while ((lnum != 0 && curline < lnum) || (offset != 0 && size < offset)) |
| 7 | 5262 { |
| 5263 if (curline > buf->b_ml.ml_line_count | |
| 5264 || (hp = ml_find_line(buf, curline, ML_FIND)) == NULL) | |
| 5265 return -1; | |
| 5266 dp = (DATA_BL *)(hp->bh_data); | |
| 5267 count = (long)(buf->b_ml.ml_locked_high) - | |
| 5268 (long)(buf->b_ml.ml_locked_low) + 1; | |
| 5269 start_idx = idx = curline - buf->b_ml.ml_locked_low; | |
| 5270 if (idx == 0)/* first line in block, text at the end */ | |
| 5271 text_end = dp->db_txt_end; | |
| 5272 else | |
| 5273 text_end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); | |
| 5274 /* Compute index of last line to use in this MEMLINE */ | |
| 169 | 5275 if (lnum != 0) |
| 7 | 5276 { |
| 169 | 5277 if (curline + (count - idx) >= lnum) |
| 5278 idx += lnum - curline - 1; | |
| 7 | 5279 else |
| 5280 idx = count - 1; | |
| 5281 } | |
| 5282 else | |
| 5283 { | |
| 5284 extra = 0; | |
| 5285 while (offset >= size | |
| 5286 + text_end - (int)((dp->db_index[idx]) & DB_INDEX_MASK) | |
| 5287 + ffdos) | |
| 5288 { | |
| 5289 if (ffdos) | |
| 5290 size++; | |
| 5291 if (idx == count - 1) | |
| 5292 { | |
| 5293 extra = 1; | |
| 5294 break; | |
| 5295 } | |
| 5296 idx++; | |
| 5297 } | |
| 5298 } | |
| 5299 len = text_end - ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 5300 size += len; | |
| 5301 if (offset != 0 && size >= offset) | |
| 5302 { | |
| 5303 if (size + ffdos == offset) | |
| 5304 *offp = 0; | |
| 5305 else if (idx == start_idx) | |
| 5306 *offp = offset - size + len; | |
| 5307 else | |
| 5308 *offp = offset - size + len | |
| 5309 - (text_end - ((dp->db_index[idx - 1]) & DB_INDEX_MASK)); | |
| 5310 curline += idx - start_idx + extra; | |
| 5311 if (curline > buf->b_ml.ml_line_count) | |
| 5312 return -1; /* exactly one byte beyond the end */ | |
| 5313 return curline; | |
| 5314 } | |
| 5315 curline = buf->b_ml.ml_locked_high + 1; | |
| 5316 } | |
| 5317 | |
| 169 | 5318 if (lnum != 0) |
| 20 | 5319 { |
| 5320 /* Count extra CR characters. */ | |
| 5321 if (ffdos) | |
| 169 | 5322 size += lnum - 1; |
| 20 | 5323 |
| 6933 | 5324 /* Don't count the last line break if 'noeol' and ('bin' or |
| 5325 * 'nofixeol'). */ | |
| 5326 if ((!buf->b_p_fixeol || buf->b_p_bin) && !buf->b_p_eol | |
|
14579
23d6d9e9ae3e
patch 8.1.0303: line2byte() is wrong for last line with 'noeol'
Christian Brabandt <cb@256bit.org>
parents:
14475
diff
changeset
|
5327 && lnum > buf->b_ml.ml_line_count) |
| 20 | 5328 size -= ffdos + 1; |
| 5329 } | |
| 5330 | |
| 7 | 5331 return size; |
| 5332 } | |
| 5333 | |
| 5334 /* | |
| 5335 * Goto byte in buffer with offset 'cnt'. | |
| 5336 */ | |
| 5337 void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5338 goto_byte(long cnt) |
| 7 | 5339 { |
| 5340 long boff = cnt; | |
| 5341 linenr_T lnum; | |
| 5342 | |
| 5343 ml_flush_line(curbuf); /* cached line may be dirty */ | |
| 5344 setpcmark(); | |
| 5345 if (boff) | |
| 5346 --boff; | |
| 5347 lnum = ml_find_line_or_offset(curbuf, (linenr_T)0, &boff); | |
| 5348 if (lnum < 1) /* past the end */ | |
| 5349 { | |
| 5350 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; | |
| 5351 curwin->w_curswant = MAXCOL; | |
| 5352 coladvance((colnr_T)MAXCOL); | |
| 5353 } | |
| 5354 else | |
| 5355 { | |
| 5356 curwin->w_cursor.lnum = lnum; | |
| 5357 curwin->w_cursor.col = (colnr_T)boff; | |
| 572 | 5358 # ifdef FEAT_VIRTUALEDIT |
| 5359 curwin->w_cursor.coladd = 0; | |
| 5360 # endif | |
| 7 | 5361 curwin->w_set_curswant = TRUE; |
| 5362 } | |
| 5363 check_cursor(); | |
| 5364 | |
| 5365 # ifdef FEAT_MBYTE | |
| 5366 /* Make sure the cursor is on the first byte of a multi-byte char. */ | |
| 5367 if (has_mbyte) | |
| 5368 mb_adjust_cursor(); | |
| 5369 # endif | |
| 5370 } | |
| 5371 #endif |