Mercurial > vim
annotate src/xxd/xxd.c @ 26366:d227481dbe8e v8.2.3714
patch 8.2.3714: some unused assignments and ugly code in xxd
Commit: https://github.com/vim/vim/commit/7e5503c17a3f142e6b28f344d899c9ab9e75a844
Author: DungSaga <dungsaga@users.noreply.github.com>
Date: Wed Dec 1 11:24:52 2021 +0000
patch 8.2.3714: some unused assignments and ugly code in xxd
Problem: Some unused assignments and ugly code in xxd.
Solution: Leave out assignments. Use marcro for fprintf(). (closes https://github.com/vim/vim/issues/9246)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Wed, 01 Dec 2021 12:30:04 +0100 |
| parents | bb58c4530851 |
| children | b9ede1952107 |
| rev | line source |
|---|---|
| 7 | 1 /* xxd: my hexdump facility. jw |
| 2 * | |
| 3 * 2.10.90 changed to word output | |
| 4 * 3.03.93 new indent style, dumb bug inserted and fixed. | |
| 5 * -c option, mls | |
| 6 * 26.04.94 better option parser, -ps, -l, -s added. | |
| 7 * 1.07.94 -r badly needs - as input file. Per default autoskip over | |
| 1197 | 8 * consecutive lines of zeroes, as unix od does. |
| 7 | 9 * -a shows them too. |
| 10 * -i dump as c-style #include "file.h" | |
| 11 * 1.11.95 if "xxd -i" knows the filename, an 'unsigned char filename_bits[]' | |
| 12 * array is written in correct c-syntax. | |
| 13 * -s improved, now defaults to absolute seek, relative requires a '+'. | |
| 14 * -r improved, now -r -s -0x... is supported. | |
| 15 * change/suppress leading '\0' bytes. | |
| 16 * -l n improved: stops exactly after n bytes. | |
| 17 * -r improved, better handling of partial lines with trailing garbage. | |
| 18 * -r improved, now -r -p works again! | |
| 19 * -r improved, less flushing, much faster now! (that was silly) | |
| 20 * 3.04.96 Per repeated request of a single person: autoskip defaults to off. | |
| 21 * 15.05.96 -v added. They want to know the version. | |
| 22 * -a fixed, to show last line inf file ends in all zeros. | |
| 23 * -u added: Print upper case hex-letters, as preferred by unix bc. | |
| 24 * -h added to usage message. Usage message extended. | |
| 25 * Now using outfile if specified even in normal mode, aehem. | |
| 26 * No longer mixing of ints and longs. May help doze people. | |
| 27 * Added binify ioctl for same reason. (Enough Doze stress for 1996!) | |
| 28 * 16.05.96 -p improved, removed occasional superfluous linefeed. | |
| 29 * 20.05.96 -l 0 fixed. tried to read anyway. | |
| 30 * 21.05.96 -i fixed. now honours -u, and prepends __ to numeric filenames. | |
| 31 * compile -DWIN32 for NT or W95. George V. Reilly, * -v improved :-) | |
| 32 * support --gnuish-longhorn-options | |
| 33 * 25.05.96 MAC support added: CodeWarrior already uses ``outline'' in Types.h | |
| 34 * which is included by MacHeaders (Axel Kielhorn). Renamed to | |
| 35 * xxdline(). | |
| 36 * 7.06.96 -i printed 'int' instead of 'char'. *blush* | |
| 37 * added Bram's OS2 ifdefs... | |
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patch 8.2.0156: various typos in source files and tests
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38 * 18.07.96 gcc -Wall @ SunOS4 is now silent. |
| 7 | 39 * Added osver for MSDOS/DJGPP/WIN32. |
| 40 * 29.08.96 Added size_t to strncmp() for Amiga. | |
| 41 * 24.03.97 Windows NT support (Phil Hanna). Clean exit for Amiga WB (Bram) | |
| 42 * 02.04.97 Added -E option, to have EBCDIC translation instead of ASCII | |
| 216 | 43 * (azc10@yahoo.com) |
| 7 | 44 * 22.05.97 added -g (group octets) option (jcook@namerica.kla.com). |
| 45 * 23.09.98 nasty -p -r misfeature fixed: slightly wrong output, when -c was | |
| 46 * missing or wrong. | |
| 47 * 26.09.98 Fixed: 'xxd -i infile outfile' did not truncate outfile. | |
| 48 * 27.10.98 Fixed: -g option parser required blank. | |
| 49 * option -b added: 01000101 binary output in normal format. | |
| 50 * 16.05.00 Added VAXC changes by Stephen P. Wall | |
| 1197 | 51 * 16.05.00 Improved MMS file and merge for VMS by Zoltan Arpadffy |
| 2752 | 52 * 2011 March Better error handling by Florian Zumbiehl. |
| 53 * 2011 April Formatting by Bram Moolenaar | |
| 6655 | 54 * 08.06.2013 Little-endian hexdump (-e) and offset (-o) by Vadim Vygonets. |
|
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55 * 11.01.2019 Add full 64/32 bit range to -o and output by Christer Jensen. |
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56 * 04.02.2020 Add -d for decimal offsets by Aapo Rantalainen |
| 7 | 57 * |
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patch 8.2.3075: xxd always reports an old version string
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58 * (c) 1990-1998 by Juergen Weigert (jnweiger@gmail.com) |
| 7 | 59 * |
| 6973 | 60 * I hereby grant permission to distribute and use xxd |
| 61 * under X11-MIT or GPL-2.0 (at the user's choice). | |
| 62 * | |
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63 * Contributions by Bram Moolenaar et al. |
| 7 | 64 */ |
| 714 | 65 |
| 66 /* Visual Studio 2005 has 'deprecated' many of the standard CRT functions */ | |
| 67 #if _MSC_VER >= 1400 | |
| 68 # define _CRT_SECURE_NO_DEPRECATE | |
| 69 # define _CRT_NONSTDC_NO_DEPRECATE | |
| 70 #endif | |
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71 #if !defined(CYGWIN) && defined(__CYGWIN__) |
| 1912 | 72 # define CYGWIN |
| 73 #endif | |
| 714 | 74 |
| 7 | 75 #include <stdio.h> |
| 76 #ifdef VAXC | |
| 77 # include <file.h> | |
| 78 #else | |
| 79 # include <fcntl.h> | |
| 80 #endif | |
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81 #if defined(WIN32) || defined(CYGWIN) |
| 7 | 82 # include <io.h> /* for setmode() */ |
| 83 #else | |
| 84 # ifdef UNIX | |
| 85 # include <unistd.h> | |
| 86 # endif | |
| 87 #endif | |
| 88 #include <stdlib.h> | |
| 89 #include <string.h> /* for strncmp() */ | |
| 90 #include <ctype.h> /* for isalnum() */ | |
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91 #include <limits.h> |
| 7 | 92 #if __MWERKS__ && !defined(BEBOX) |
| 93 # include <unix.h> /* for fdopen() on MAC */ | |
| 94 #endif | |
| 95 | |
| 96 | |
| 97 /* This corrects the problem of missing prototypes for certain functions | |
| 98 * in some GNU installations (e.g. SunOS 4.1.x). | |
| 99 * Darren Hiebert <darren@hmi.com> (sparc-sun-sunos4.1.3_U1/2.7.2.2) | |
| 100 */ | |
| 101 #if defined(__GNUC__) && defined(__STDC__) | |
| 102 # ifndef __USE_FIXED_PROTOTYPES__ | |
| 103 # define __USE_FIXED_PROTOTYPES__ | |
| 104 # endif | |
| 105 #endif | |
| 106 | |
| 107 #ifndef __USE_FIXED_PROTOTYPES__ | |
| 108 /* | |
| 109 * This is historic and works only if the compiler really has no prototypes: | |
| 110 * | |
| 111 * Include prototypes for Sun OS 4.x, when using an ANSI compiler. | |
| 112 * FILE is defined on OS 4.x, not on 5.x (Solaris). | |
| 113 * if __SVR4 is defined (some Solaris versions), don't include this. | |
| 114 */ | |
| 115 #if defined(sun) && defined(FILE) && !defined(__SVR4) && defined(__STDC__) | |
| 116 # define __P(a) a | |
| 117 /* excerpt from my sun_stdlib.h */ | |
| 118 extern int fprintf __P((FILE *, char *, ...)); | |
| 119 extern int fputs __P((char *, FILE *)); | |
| 120 extern int _flsbuf __P((unsigned char, FILE *)); | |
| 121 extern int _filbuf __P((FILE *)); | |
| 122 extern int fflush __P((FILE *)); | |
| 123 extern int fclose __P((FILE *)); | |
| 124 extern int fseek __P((FILE *, long, int)); | |
| 125 extern int rewind __P((FILE *)); | |
| 126 | |
| 127 extern void perror __P((char *)); | |
| 128 # endif | |
| 129 #endif | |
| 130 | |
| 131 extern long int strtol(); | |
| 132 extern long int ftell(); | |
| 133 | |
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patch 8.2.3552: xxd revert does not handle end of line correctly
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134 char version[] = "xxd 2021-10-22 by Juergen Weigert et al."; |
| 7 | 135 #ifdef WIN32 |
| 136 char osver[] = " (Win32)"; | |
| 137 #else | |
| 138 char osver[] = ""; | |
| 139 #endif | |
| 140 | |
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commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
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141 #if defined(WIN32) |
| 7 | 142 # define BIN_READ(yes) ((yes) ? "rb" : "rt") |
| 143 # define BIN_WRITE(yes) ((yes) ? "wb" : "wt") | |
| 144 # define BIN_CREAT(yes) ((yes) ? (O_CREAT|O_BINARY) : O_CREAT) | |
| 145 # define BIN_ASSIGN(fp, yes) setmode(fileno(fp), (yes) ? O_BINARY : O_TEXT) | |
| 602 | 146 # define PATH_SEP '\\' |
| 147 #elif defined(CYGWIN) | |
| 148 # define BIN_READ(yes) ((yes) ? "rb" : "rt") | |
| 149 # define BIN_WRITE(yes) ((yes) ? "wb" : "w") | |
| 150 # define BIN_CREAT(yes) ((yes) ? (O_CREAT|O_BINARY) : O_CREAT) | |
| 151 # define BIN_ASSIGN(fp, yes) ((yes) ? (void) setmode(fileno(fp), O_BINARY) : (void) (fp)) | |
| 152 # define PATH_SEP '/' | |
| 7 | 153 #else |
| 154 # ifdef VMS | |
| 155 # define BIN_READ(dummy) "r" | |
| 156 # define BIN_WRITE(dummy) "w" | |
| 157 # define BIN_CREAT(dummy) O_CREAT | |
| 158 # define BIN_ASSIGN(fp, dummy) fp | |
| 159 # define PATH_SEP ']' | |
| 160 # define FILE_SEP '.' | |
| 161 # else | |
| 162 # define BIN_READ(dummy) "r" | |
| 163 # define BIN_WRITE(dummy) "w" | |
| 164 # define BIN_CREAT(dummy) O_CREAT | |
| 165 # define BIN_ASSIGN(fp, dummy) fp | |
| 166 # define PATH_SEP '/' | |
| 167 # endif | |
| 168 #endif | |
| 169 | |
| 170 /* open has only to arguments on the Mac */ | |
| 171 #if __MWERKS__ | |
| 172 # define OPEN(name, mode, umask) open(name, mode) | |
| 173 #else | |
| 174 # define OPEN(name, mode, umask) open(name, mode, umask) | |
| 175 #endif | |
| 176 | |
| 177 #ifdef AMIGA | |
| 178 # define STRNCMP(s1, s2, l) strncmp(s1, s2, (size_t)l) | |
| 179 #else | |
| 180 # define STRNCMP(s1, s2, l) strncmp(s1, s2, l) | |
| 181 #endif | |
| 182 | |
| 183 #ifndef __P | |
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184 # if defined(__STDC__) || defined(WIN32) |
| 7 | 185 # define __P(a) a |
| 186 # else | |
| 187 # define __P(a) () | |
| 188 # endif | |
| 189 #endif | |
| 190 | |
| 191 #define TRY_SEEK /* attempt to use lseek, or skip forward by reading */ | |
| 192 #define COLS 256 /* change here, if you ever need more columns */ | |
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193 #define LLEN ((2*(int)sizeof(unsigned long)) + 4 + (9*COLS-1) + COLS + 2) |
| 7 | 194 |
| 195 char hexxa[] = "0123456789abcdef0123456789ABCDEF", *hexx = hexxa; | |
| 196 | |
| 197 /* the different hextypes known by this program: */ | |
| 198 #define HEX_NORMAL 0 | |
| 199 #define HEX_POSTSCRIPT 1 | |
| 200 #define HEX_CINCLUDE 2 | |
| 201 #define HEX_BITS 3 /* not hex a dump, but bits: 01111001 */ | |
| 6655 | 202 #define HEX_LITTLEENDIAN 4 |
| 7 | 203 |
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204 #define CONDITIONAL_CAPITALIZE(c) (capitalize ? toupper((int)c) : c) |
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205 |
| 2752 | 206 static char *pname; |
| 207 | |
| 208 static void | |
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209 exit_with_usage(void) |
| 7 | 210 { |
| 211 fprintf(stderr, "Usage:\n %s [options] [infile [outfile]]\n", pname); | |
| 212 fprintf(stderr, " or\n %s -r [-s [-]offset] [-c cols] [-ps] [infile [outfile]]\n", pname); | |
| 213 fprintf(stderr, "Options:\n"); | |
| 214 fprintf(stderr, " -a toggle autoskip: A single '*' replaces nul-lines. Default off.\n"); | |
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215 fprintf(stderr, " -b binary digit dump (incompatible with -ps,-i,-r). Default hex.\n"); |
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216 fprintf(stderr, " -C capitalize variable names in C include file style (-i).\n"); |
| 7 | 217 fprintf(stderr, " -c cols format <cols> octets per line. Default 16 (-i: 12, -ps: 30).\n"); |
| 218 fprintf(stderr, " -E show characters in EBCDIC. Default ASCII.\n"); | |
| 6655 | 219 fprintf(stderr, " -e little-endian dump (incompatible with -ps,-i,-r).\n"); |
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220 fprintf(stderr, " -g bytes number of octets per group in normal output. Default 2 (-e: 4).\n"); |
| 7 | 221 fprintf(stderr, " -h print this summary.\n"); |
| 222 fprintf(stderr, " -i output in C include file style.\n"); | |
| 223 fprintf(stderr, " -l len stop after <len> octets.\n"); | |
| 6655 | 224 fprintf(stderr, " -o off add <off> to the displayed file position.\n"); |
| 7 | 225 fprintf(stderr, " -ps output in postscript plain hexdump style.\n"); |
| 226 fprintf(stderr, " -r reverse operation: convert (or patch) hexdump into binary.\n"); | |
| 227 fprintf(stderr, " -r -s off revert with <off> added to file positions found in hexdump.\n"); | |
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228 fprintf(stderr, " -d show offset in decimal instead of hex.\n"); |
| 7 | 229 fprintf(stderr, " -s %sseek start at <seek> bytes abs. %sinfile offset.\n", |
| 230 #ifdef TRY_SEEK | |
| 231 "[+][-]", "(or +: rel.) "); | |
| 232 #else | |
| 233 "", ""); | |
| 234 #endif | |
| 235 fprintf(stderr, " -u use upper case hex letters.\n"); | |
| 236 fprintf(stderr, " -v show version: \"%s%s\".\n", version, osver); | |
| 237 exit(1); | |
| 238 } | |
| 239 | |
| 2752 | 240 static void |
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241 perror_exit(int ret) |
| 2752 | 242 { |
| 243 fprintf(stderr, "%s: ", pname); | |
| 244 perror(NULL); | |
| 245 exit(ret); | |
| 246 } | |
| 247 | |
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248 static void |
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249 error_exit(int ret, char *msg) |
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250 { |
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251 fprintf(stderr, "%s: %s\n", pname, msg); |
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252 exit(ret); |
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253 } |
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254 |
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255 static int |
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256 getc_or_die(FILE *fpi) |
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257 { |
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258 int c = getc(fpi); |
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259 if (c == EOF && ferror(fpi)) |
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260 perror_exit(2); |
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261 return c; |
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262 } |
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263 |
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264 static void |
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265 putc_or_die(int c, FILE *fpo) |
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266 { |
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267 if (putc(c, fpo) == EOF) |
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268 perror_exit(3); |
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269 } |
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270 |
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271 static void |
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272 fputs_or_die(char *s, FILE *fpo) |
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273 { |
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274 if (fputs(s, fpo) == EOF) |
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275 perror_exit(3); |
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276 } |
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277 |
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278 /* Use a macro to allow for different arguments. */ |
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279 #define FPRINTF_OR_DIE(args) if (fprintf args < 0) perror_exit(3) |
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280 |
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281 static void |
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282 fclose_or_die(FILE *fpi, FILE *fpo) |
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283 { |
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284 if (fclose(fpo) != 0) |
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285 perror_exit(3); |
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286 if (fclose(fpi) != 0) |
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287 perror_exit(2); |
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288 } |
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289 |
| 7 | 290 /* |
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291 * If "c" is a hex digit, return the value. |
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292 * Otherwise return -1. |
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293 */ |
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294 static int |
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295 parse_hex_digit(int c) |
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296 { |
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297 return (c >= '0' && c <= '9') ? c - '0' |
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298 : (c >= 'a' && c <= 'f') ? c - 'a' + 10 |
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299 : (c >= 'A' && c <= 'F') ? c - 'A' + 10 |
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300 : -1; |
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301 } |
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302 |
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303 /* |
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304 * Ignore text on "fpi" until end-of-line or end-of-file. |
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305 * Return the '\n' or EOF character. |
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306 * When an error is encountered exit with an error message. |
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307 */ |
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308 static int |
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309 skip_to_eol(FILE *fpi, int c) |
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310 { |
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311 while (c != '\n' && c != EOF) |
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312 c = getc_or_die(fpi); |
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313 return c; |
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314 } |
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315 |
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316 /* |
| 7 | 317 * Max. cols binary characters are decoded from the input stream per line. |
| 318 * Two adjacent garbage characters after evaluated data delimit valid data. | |
| 319 * Everything up to the next newline is discarded. | |
| 320 * | |
| 321 * The name is historic and came from 'undo type opt h'. | |
| 322 */ | |
| 2752 | 323 static int |
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324 huntype( |
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325 FILE *fpi, |
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326 FILE *fpo, |
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327 int cols, |
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328 int hextype, |
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329 long base_off) |
| 7 | 330 { |
| 331 int c, ign_garb = 1, n1 = -1, n2 = 0, n3, p = cols; | |
| 332 long have_off = 0, want_off = 0; | |
| 333 | |
| 334 rewind(fpi); | |
| 335 | |
| 336 while ((c = getc(fpi)) != EOF) | |
| 337 { | |
| 338 if (c == '\r') /* Doze style input file? */ | |
| 339 continue; | |
| 340 | |
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341 /* Allow multiple spaces. This doesn't work when there is normal text |
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342 * after the hex codes in the last line that looks like hex, thus only |
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343 * use it for PostScript format. */ |
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344 if (hextype == HEX_POSTSCRIPT && (c == ' ' || c == '\n' || c == '\t')) |
| 856 | 345 continue; |
| 809 | 346 |
| 7 | 347 n3 = n2; |
| 348 n2 = n1; | |
| 349 | |
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350 n1 = parse_hex_digit(c); |
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351 if (n1 == -1 && ign_garb) |
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352 continue; |
| 7 | 353 |
| 354 ign_garb = 0; | |
| 355 | |
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356 if (!hextype && (p >= cols)) |
| 7 | 357 { |
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358 if (n1 < 0) |
| 7 | 359 { |
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360 p = 0; |
| 7 | 361 continue; |
| 362 } | |
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363 want_off = (want_off << 4) | n1; |
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364 continue; |
| 7 | 365 } |
| 366 | |
| 367 if (base_off + want_off != have_off) | |
| 368 { | |
| 2752 | 369 if (fflush(fpo) != 0) |
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370 perror_exit(3); |
| 7 | 371 #ifdef TRY_SEEK |
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372 if (fseek(fpo, base_off + want_off - have_off, SEEK_CUR) >= 0) |
| 7 | 373 have_off = base_off + want_off; |
| 374 #endif | |
| 375 if (base_off + want_off < have_off) | |
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376 error_exit(5, "Sorry, cannot seek backwards."); |
| 7 | 377 for (; have_off < base_off + want_off; have_off++) |
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378 putc_or_die(0, fpo); |
| 7 | 379 } |
| 380 | |
| 381 if (n2 >= 0 && n1 >= 0) | |
| 382 { | |
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383 putc_or_die((n2 << 4) | n1, fpo); |
| 7 | 384 have_off++; |
| 385 want_off++; | |
| 386 n1 = -1; | |
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387 if (!hextype && (++p >= cols)) |
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388 /* skip the rest of the line as garbage */ |
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389 c = skip_to_eol(fpi, c); |
| 7 | 390 } |
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391 else if (n1 < 0 && n2 < 0 && n3 < 0) |
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392 /* already stumbled into garbage, skip line, wait and see */ |
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393 c = skip_to_eol(fpi, c); |
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394 |
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395 if (c == '\n') |
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396 { |
| 7 | 397 if (!hextype) |
| 398 want_off = 0; | |
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399 p = cols; |
| 7 | 400 ign_garb = 1; |
| 401 } | |
| 402 } | |
| 2752 | 403 if (fflush(fpo) != 0) |
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404 perror_exit(3); |
| 7 | 405 #ifdef TRY_SEEK |
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406 fseek(fpo, 0L, SEEK_END); |
| 7 | 407 #endif |
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408 fclose_or_die(fpi, fpo); |
| 7 | 409 return 0; |
| 410 } | |
| 411 | |
| 412 /* | |
| 413 * Print line l. If nz is false, xxdline regards the line a line of | |
| 414 * zeroes. If there are three or more consecutive lines of zeroes, | |
| 415 * they are replaced by a single '*' character. | |
| 416 * | |
| 417 * If the output ends with more than two lines of zeroes, you | |
| 418 * should call xxdline again with l being the last line and nz | |
| 419 * negative. This ensures that the last line is shown even when | |
| 420 * it is all zeroes. | |
| 421 * | |
| 422 * If nz is always positive, lines are never suppressed. | |
| 423 */ | |
| 2752 | 424 static void |
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425 xxdline(FILE *fp, char *l, int nz) |
| 7 | 426 { |
| 427 static char z[LLEN+1]; | |
| 428 static int zero_seen = 0; | |
| 429 | |
| 430 if (!nz && zero_seen == 1) | |
| 431 strcpy(z, l); | |
| 432 | |
| 433 if (nz || !zero_seen++) | |
| 434 { | |
| 435 if (nz) | |
| 436 { | |
| 437 if (nz < 0) | |
| 438 zero_seen--; | |
| 439 if (zero_seen == 2) | |
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440 fputs_or_die(z, fp); |
| 7 | 441 if (zero_seen > 2) |
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442 fputs_or_die("*\n", fp); |
| 7 | 443 } |
| 444 if (nz >= 0 || zero_seen > 0) | |
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445 fputs_or_die(l, fp); |
| 7 | 446 if (nz) |
| 447 zero_seen = 0; | |
| 448 } | |
| 449 } | |
| 450 | |
| 451 /* This is an EBCDIC to ASCII conversion table */ | |
| 452 /* from a proposed BTL standard April 16, 1979 */ | |
| 453 static unsigned char etoa64[] = | |
| 454 { | |
| 455 0040,0240,0241,0242,0243,0244,0245,0246, | |
| 456 0247,0250,0325,0056,0074,0050,0053,0174, | |
| 457 0046,0251,0252,0253,0254,0255,0256,0257, | |
| 458 0260,0261,0041,0044,0052,0051,0073,0176, | |
| 459 0055,0057,0262,0263,0264,0265,0266,0267, | |
| 460 0270,0271,0313,0054,0045,0137,0076,0077, | |
| 461 0272,0273,0274,0275,0276,0277,0300,0301, | |
| 462 0302,0140,0072,0043,0100,0047,0075,0042, | |
| 463 0303,0141,0142,0143,0144,0145,0146,0147, | |
| 464 0150,0151,0304,0305,0306,0307,0310,0311, | |
| 465 0312,0152,0153,0154,0155,0156,0157,0160, | |
| 466 0161,0162,0136,0314,0315,0316,0317,0320, | |
| 467 0321,0345,0163,0164,0165,0166,0167,0170, | |
| 468 0171,0172,0322,0323,0324,0133,0326,0327, | |
| 469 0330,0331,0332,0333,0334,0335,0336,0337, | |
| 470 0340,0341,0342,0343,0344,0135,0346,0347, | |
| 471 0173,0101,0102,0103,0104,0105,0106,0107, | |
| 472 0110,0111,0350,0351,0352,0353,0354,0355, | |
| 473 0175,0112,0113,0114,0115,0116,0117,0120, | |
| 474 0121,0122,0356,0357,0360,0361,0362,0363, | |
| 475 0134,0237,0123,0124,0125,0126,0127,0130, | |
| 476 0131,0132,0364,0365,0366,0367,0370,0371, | |
| 477 0060,0061,0062,0063,0064,0065,0066,0067, | |
| 478 0070,0071,0372,0373,0374,0375,0376,0377 | |
| 479 }; | |
| 480 | |
| 2752 | 481 int |
|
7837
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commit https://github.com/vim/vim/commit/b638a7be952544ceb03052c25b84224577a6494b
Christian Brabandt <cb@256bit.org>
parents:
6973
diff
changeset
|
482 main(int argc, char *argv[]) |
| 7 | 483 { |
| 484 FILE *fp, *fpo; | |
| 485 int c, e, p = 0, relseek = 1, negseek = 0, revert = 0; | |
|
20601
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patch 8.2.0854: xxd cannot show offset as a decimal number
Bram Moolenaar <Bram@vim.org>
parents:
19195
diff
changeset
|
486 int cols = 0, nonzero = 0, autoskip = 0, hextype = HEX_NORMAL; |
|
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patch 8.2.0854: xxd cannot show offset as a decimal number
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diff
changeset
|
487 int capitalize = 0, decimal_offset = 0; |
| 7 | 488 int ebcdic = 0; |
| 489 int octspergrp = -1; /* number of octets grouped in output */ | |
| 490 int grplen; /* total chars per octet group */ | |
|
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changeset
|
491 long length = -1, n = 0, seekoff = 0; |
|
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changeset
|
492 unsigned long displayoff = 0; |
| 2770 | 493 static char l[LLEN+1]; /* static because it may be too big for stack */ |
| 2752 | 494 char *pp; |
|
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patch 8.1.0855: cannot build xxd with MSVC 10
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parents:
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diff
changeset
|
495 int addrlen = 9; |
| 7 | 496 |
| 497 #ifdef AMIGA | |
| 498 /* This program doesn't work when started from the Workbench */ | |
| 499 if (argc == 0) | |
| 500 exit(1); | |
| 501 #endif | |
| 502 | |
| 503 pname = argv[0]; | |
| 504 for (pp = pname; *pp; ) | |
| 505 if (*pp++ == PATH_SEP) | |
| 506 pname = pp; | |
| 507 #ifdef FILE_SEP | |
| 508 for (pp = pname; *pp; pp++) | |
| 509 if (*pp == FILE_SEP) | |
| 510 { | |
| 511 *pp = '\0'; | |
| 512 break; | |
| 513 } | |
| 514 #endif | |
| 515 | |
| 516 while (argc >= 2) | |
| 517 { | |
| 518 pp = argv[1] + (!STRNCMP(argv[1], "--", 2) && argv[1][2]); | |
| 519 if (!STRNCMP(pp, "-a", 2)) autoskip = 1 - autoskip; | |
| 520 else if (!STRNCMP(pp, "-b", 2)) hextype = HEX_BITS; | |
| 6655 | 521 else if (!STRNCMP(pp, "-e", 2)) hextype = HEX_LITTLEENDIAN; |
| 7 | 522 else if (!STRNCMP(pp, "-u", 2)) hexx = hexxa + 16; |
| 523 else if (!STRNCMP(pp, "-p", 2)) hextype = HEX_POSTSCRIPT; | |
| 524 else if (!STRNCMP(pp, "-i", 2)) hextype = HEX_CINCLUDE; | |
|
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patch 8.0.1656: no option to have xxd produce upper case variable names
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changeset
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525 else if (!STRNCMP(pp, "-C", 2)) capitalize = 1; |
|
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diff
changeset
|
526 else if (!STRNCMP(pp, "-d", 2)) decimal_offset = 1; |
| 7 | 527 else if (!STRNCMP(pp, "-r", 2)) revert++; |
| 528 else if (!STRNCMP(pp, "-E", 2)) ebcdic++; | |
| 529 else if (!STRNCMP(pp, "-v", 2)) | |
| 530 { | |
| 531 fprintf(stderr, "%s%s\n", version, osver); | |
| 532 exit(0); | |
| 533 } | |
| 534 else if (!STRNCMP(pp, "-c", 2)) | |
| 535 { | |
|
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patch 8.1.0821: xxd "usage" output and other arguments not tested
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changeset
|
536 if (pp[2] && !STRNCMP("apitalize", pp + 2, 9)) |
|
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patch 8.1.0821: xxd "usage" output and other arguments not tested
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changeset
|
537 capitalize = 1; |
|
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changeset
|
538 else if (pp[2] && STRNCMP("ols", pp + 2, 3)) |
| 7 | 539 cols = (int)strtol(pp + 2, NULL, 0); |
| 540 else | |
| 541 { | |
| 542 if (!argv[2]) | |
| 2752 | 543 exit_with_usage(); |
| 7 | 544 cols = (int)strtol(argv[2], NULL, 0); |
| 545 argv++; | |
| 546 argc--; | |
| 547 } | |
| 548 } | |
| 549 else if (!STRNCMP(pp, "-g", 2)) | |
| 550 { | |
|
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changeset
|
551 if (pp[2] && STRNCMP("roup", pp + 2, 4)) |
| 7 | 552 octspergrp = (int)strtol(pp + 2, NULL, 0); |
| 553 else | |
| 554 { | |
| 555 if (!argv[2]) | |
| 2752 | 556 exit_with_usage(); |
| 7 | 557 octspergrp = (int)strtol(argv[2], NULL, 0); |
| 558 argv++; | |
| 559 argc--; | |
| 560 } | |
| 561 } | |
| 6655 | 562 else if (!STRNCMP(pp, "-o", 2)) |
| 563 { | |
|
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changeset
|
564 int reloffset = 0; |
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565 int negoffset = 0; |
| 6655 | 566 if (pp[2] && STRNCMP("ffset", pp + 2, 5)) |
|
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|
567 displayoff = strtoul(pp + 2, NULL, 0); |
| 6655 | 568 else |
| 569 { | |
| 570 if (!argv[2]) | |
| 571 exit_with_usage(); | |
|
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|
572 |
|
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|
573 if (argv[2][0] == '+') |
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|
574 reloffset++; |
|
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|
575 if (argv[2][reloffset] == '-') |
|
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576 negoffset++; |
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|
577 |
|
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patch 8.1.0854: xxd does not work with more than 32 bit addresses
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|
578 if (negoffset) |
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|
579 displayoff = ULONG_MAX - strtoul(argv[2] + reloffset+negoffset, NULL, 0) + 1; |
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580 else |
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changeset
|
581 displayoff = strtoul(argv[2] + reloffset+negoffset, NULL, 0); |
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changeset
|
582 |
| 6655 | 583 argv++; |
| 584 argc--; | |
| 585 } | |
| 586 } | |
| 7 | 587 else if (!STRNCMP(pp, "-s", 2)) |
| 588 { | |
| 589 relseek = 0; | |
| 590 negseek = 0; | |
| 591 if (pp[2] && STRNCMP("kip", pp+2, 3) && STRNCMP("eek", pp+2, 3)) | |
| 592 { | |
| 593 #ifdef TRY_SEEK | |
| 594 if (pp[2] == '+') | |
| 595 relseek++; | |
| 596 if (pp[2+relseek] == '-') | |
| 597 negseek++; | |
| 598 #endif | |
| 599 seekoff = strtol(pp + 2+relseek+negseek, (char **)NULL, 0); | |
| 600 } | |
| 601 else | |
| 602 { | |
| 603 if (!argv[2]) | |
| 2752 | 604 exit_with_usage(); |
| 7 | 605 #ifdef TRY_SEEK |
| 606 if (argv[2][0] == '+') | |
| 607 relseek++; | |
| 608 if (argv[2][relseek] == '-') | |
| 609 negseek++; | |
| 610 #endif | |
| 611 seekoff = strtol(argv[2] + relseek+negseek, (char **)NULL, 0); | |
| 612 argv++; | |
| 613 argc--; | |
| 614 } | |
| 615 } | |
| 616 else if (!STRNCMP(pp, "-l", 2)) | |
| 617 { | |
| 618 if (pp[2] && STRNCMP("en", pp + 2, 2)) | |
| 619 length = strtol(pp + 2, (char **)NULL, 0); | |
| 620 else | |
| 621 { | |
| 622 if (!argv[2]) | |
| 2752 | 623 exit_with_usage(); |
| 7 | 624 length = strtol(argv[2], (char **)NULL, 0); |
| 625 argv++; | |
| 626 argc--; | |
| 627 } | |
| 628 } | |
| 629 else if (!strcmp(pp, "--")) /* end of options */ | |
| 630 { | |
| 631 argv++; | |
| 632 argc--; | |
| 633 break; | |
| 634 } | |
| 635 else if (pp[0] == '-' && pp[1]) /* unknown option */ | |
| 2752 | 636 exit_with_usage(); |
| 7 | 637 else |
| 638 break; /* not an option */ | |
| 639 | |
| 640 argv++; /* advance to next argument */ | |
| 641 argc--; | |
| 642 } | |
| 643 | |
| 644 if (!cols) | |
| 645 switch (hextype) | |
| 646 { | |
| 647 case HEX_POSTSCRIPT: cols = 30; break; | |
| 648 case HEX_CINCLUDE: cols = 12; break; | |
| 649 case HEX_BITS: cols = 6; break; | |
| 650 case HEX_NORMAL: | |
| 6655 | 651 case HEX_LITTLEENDIAN: |
| 7 | 652 default: cols = 16; break; |
| 653 } | |
| 654 | |
| 655 if (octspergrp < 0) | |
| 656 switch (hextype) | |
| 657 { | |
| 658 case HEX_BITS: octspergrp = 1; break; | |
| 659 case HEX_NORMAL: octspergrp = 2; break; | |
| 6655 | 660 case HEX_LITTLEENDIAN: octspergrp = 4; break; |
| 7 | 661 case HEX_POSTSCRIPT: |
| 662 case HEX_CINCLUDE: | |
| 663 default: octspergrp = 0; break; | |
| 664 } | |
| 665 | |
| 6655 | 666 if (cols < 1 || ((hextype == HEX_NORMAL || hextype == HEX_BITS || hextype == HEX_LITTLEENDIAN) |
| 1452 | 667 && (cols > COLS))) |
| 7 | 668 { |
| 669 fprintf(stderr, "%s: invalid number of columns (max. %d).\n", pname, COLS); | |
| 670 exit(1); | |
| 671 } | |
| 672 | |
| 6655 | 673 if (octspergrp < 1 || octspergrp > cols) |
| 7 | 674 octspergrp = cols; |
| 6655 | 675 else if (hextype == HEX_LITTLEENDIAN && (octspergrp & (octspergrp-1))) |
|
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patch 8.2.3554: xxd has various way to exit
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parents:
26036
diff
changeset
|
676 error_exit(1, "number of octets per group must be a power of 2 with -e."); |
| 7 | 677 |
| 678 if (argc > 3) | |
| 2752 | 679 exit_with_usage(); |
| 7 | 680 |
| 681 if (argc == 1 || (argv[1][0] == '-' && !argv[1][1])) | |
| 682 BIN_ASSIGN(fp = stdin, !revert); | |
| 683 else | |
| 684 { | |
| 685 if ((fp = fopen(argv[1], BIN_READ(!revert))) == NULL) | |
| 686 { | |
| 687 fprintf(stderr,"%s: ", pname); | |
| 688 perror(argv[1]); | |
| 689 return 2; | |
| 690 } | |
| 691 } | |
| 692 | |
| 693 if (argc < 3 || (argv[2][0] == '-' && !argv[2][1])) | |
| 694 BIN_ASSIGN(fpo = stdout, revert); | |
| 695 else | |
| 696 { | |
| 697 int fd; | |
| 698 int mode = revert ? O_WRONLY : (O_TRUNC|O_WRONLY); | |
| 699 | |
| 700 if (((fd = OPEN(argv[2], mode | BIN_CREAT(revert), 0666)) < 0) || | |
| 701 (fpo = fdopen(fd, BIN_WRITE(revert))) == NULL) | |
| 702 { | |
| 703 fprintf(stderr, "%s: ", pname); | |
| 704 perror(argv[2]); | |
| 705 return 3; | |
| 706 } | |
| 707 rewind(fpo); | |
| 708 } | |
| 709 | |
| 710 if (revert) | |
| 711 { | |
| 712 if (hextype && (hextype != HEX_POSTSCRIPT)) | |
|
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patch 8.2.3714: some unused assignments and ugly code in xxd
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diff
changeset
|
713 error_exit(-1, "Sorry, cannot revert this type of hexdump"); |
|
26040
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patch 8.2.3554: xxd has various way to exit
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parents:
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diff
changeset
|
714 return huntype(fp, fpo, cols, hextype, |
| 7 | 715 negseek ? -seekoff : seekoff); |
| 716 } | |
| 717 | |
| 718 if (seekoff || negseek || !relseek) | |
| 719 { | |
| 720 #ifdef TRY_SEEK | |
| 721 if (relseek) | |
|
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patch 8.2.3594: xxd code is a bit difficult to understand
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
722 e = fseek(fp, negseek ? -seekoff : seekoff, SEEK_CUR); |
| 7 | 723 else |
|
26123
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patch 8.2.3594: xxd code is a bit difficult to understand
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changeset
|
724 e = fseek(fp, negseek ? -seekoff : seekoff, |
|
56d1d2cb4ad5
patch 8.2.3594: xxd code is a bit difficult to understand
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diff
changeset
|
725 negseek ? SEEK_END : SEEK_SET); |
| 7 | 726 if (e < 0 && negseek) |
|
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patch 8.2.3714: some unused assignments and ugly code in xxd
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diff
changeset
|
727 error_exit(4, "Sorry, cannot seek."); |
| 7 | 728 if (e >= 0) |
| 729 seekoff = ftell(fp); | |
| 730 else | |
| 731 #endif | |
| 732 { | |
| 733 long s = seekoff; | |
| 734 | |
| 735 while (s--) | |
|
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patch 8.2.3714: some unused assignments and ugly code in xxd
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diff
changeset
|
736 if (getc_or_die(fp) == EOF) |
| 2754 | 737 { |
|
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patch 8.2.3714: some unused assignments and ugly code in xxd
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parents:
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diff
changeset
|
738 error_exit(4, "Sorry, cannot seek."); |
| 2754 | 739 } |
| 7 | 740 } |
| 741 } | |
| 742 | |
| 743 if (hextype == HEX_CINCLUDE) | |
| 744 { | |
| 745 if (fp != stdin) | |
| 746 { | |
|
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diff
changeset
|
747 FPRINTF_OR_DIE((fpo, "unsigned char %s", isdigit((int)argv[1][0]) ? "__" : "")); |
| 7 | 748 for (e = 0; (c = argv[1][e]) != 0; e++) |
|
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changeset
|
749 putc_or_die(isalnum(c) ? CONDITIONAL_CAPITALIZE(c) : '_', fpo); |
|
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changeset
|
750 fputs_or_die("[] = {\n", fpo); |
| 7 | 751 } |
| 752 | |
| 753 p = 0; | |
| 2752 | 754 c = 0; |
|
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patch 8.2.3680: repeated code in xxd
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diff
changeset
|
755 while ((length < 0 || p < length) && (c = getc_or_die(fp)) != EOF) |
| 7 | 756 { |
|
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changeset
|
757 FPRINTF_OR_DIE((fpo, (hexx == hexxa) ? "%s0x%02x" : "%s0X%02X", |
|
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changeset
|
758 (p % cols) ? ", " : (!p ? " " : ",\n "), c)); |
| 7 | 759 p++; |
| 760 } | |
| 761 | |
|
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changeset
|
762 if (p) |
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763 fputs_or_die("\n", fpo); |
| 7 | 764 |
| 765 if (fp != stdin) | |
| 766 { | |
|
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changeset
|
767 fputs_or_die("};\n", fpo); |
|
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changeset
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768 FPRINTF_OR_DIE((fpo, "unsigned int %s", isdigit((int)argv[1][0]) ? "__" : "")); |
| 7 | 769 for (e = 0; (c = argv[1][e]) != 0; e++) |
|
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changeset
|
770 putc_or_die(isalnum(c) ? CONDITIONAL_CAPITALIZE(c) : '_', fpo); |
|
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changeset
|
771 FPRINTF_OR_DIE((fpo, "_%s = %d;\n", capitalize ? "LEN" : "len", p)); |
| 7 | 772 } |
| 773 | |
|
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diff
changeset
|
774 fclose_or_die(fp, fpo); |
| 7 | 775 return 0; |
| 776 } | |
| 777 | |
| 778 if (hextype == HEX_POSTSCRIPT) | |
| 779 { | |
| 780 p = cols; | |
|
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patch 8.2.3680: repeated code in xxd
Bram Moolenaar <Bram@vim.org>
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changeset
|
781 while ((length < 0 || n < length) && (e = getc_or_die(fp)) != EOF) |
| 7 | 782 { |
|
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changeset
|
783 putc_or_die(hexx[(e >> 4) & 0xf], fpo); |
|
3061c07855ce
patch 8.2.3670: error checks repeated several times
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diff
changeset
|
784 putc_or_die(hexx[e & 0xf], fpo); |
| 7 | 785 n++; |
| 786 if (!--p) | |
| 787 { | |
|
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patch 8.2.3670: error checks repeated several times
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diff
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788 putc_or_die('\n', fpo); |
| 7 | 789 p = cols; |
| 790 } | |
| 791 } | |
| 792 if (p < cols) | |
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793 putc_or_die('\n', fpo); |
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794 fclose_or_die(fp, fpo); |
| 7 | 795 return 0; |
| 796 } | |
| 797 | |
| 6655 | 798 /* hextype: HEX_NORMAL or HEX_BITS or HEX_LITTLEENDIAN */ |
| 7 | 799 |
| 6655 | 800 if (hextype != HEX_BITS) |
| 7 | 801 grplen = octspergrp + octspergrp + 1; /* chars per octet group */ |
| 802 else /* hextype == HEX_BITS */ | |
| 803 grplen = 8 * octspergrp + 1; | |
| 804 | |
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805 while ((length < 0 || n < length) && (e = getc_or_die(fp)) != EOF) |
| 7 | 806 { |
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807 int x; |
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808 |
| 7 | 809 if (p == 0) |
| 810 { | |
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811 addrlen = sprintf(l, decimal_offset ? "%08ld:" : "%08lx:", |
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812 ((unsigned long)(n + seekoff + displayoff))); |
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813 for (c = addrlen; c < LLEN; l[c++] = ' '); |
| 7 | 814 } |
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815 x = hextype == HEX_LITTLEENDIAN ? p ^ (octspergrp-1) : p; |
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816 c = addrlen + 1 + (grplen * x) / octspergrp; |
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817 if (hextype == HEX_NORMAL || hextype == HEX_LITTLEENDIAN) |
| 7 | 818 { |
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819 l[c] = hexx[(e >> 4) & 0xf]; |
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820 l[++c] = hexx[e & 0xf]; |
| 7 | 821 } |
| 822 else /* hextype == HEX_BITS */ | |
| 823 { | |
| 824 int i; | |
| 825 for (i = 7; i >= 0; i--) | |
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826 l[c++] = (e & (1 << i)) ? '1' : '0'; |
| 7 | 827 } |
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828 if (e) |
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829 nonzero++; |
| 7 | 830 if (ebcdic) |
| 831 e = (e < 64) ? '.' : etoa64[e-64]; | |
| 1452 | 832 /* When changing this update definition of LLEN above. */ |
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833 c = addrlen + 3 + (grplen * cols - 1)/octspergrp + p; |
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834 l[c++] = |
| 7 | 835 #ifdef __MVS__ |
| 836 (e >= 64) | |
| 837 #else | |
| 838 (e > 31 && e < 127) | |
| 839 #endif | |
| 840 ? e : '.'; | |
| 841 n++; | |
| 842 if (++p == cols) | |
| 843 { | |
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844 l[c] = '\n'; |
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845 l[++c] = '\0'; |
| 7 | 846 xxdline(fpo, l, autoskip ? nonzero : 1); |
| 847 nonzero = 0; | |
| 848 p = 0; | |
| 849 } | |
| 850 } | |
| 851 if (p) | |
| 852 { | |
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853 l[c] = '\n'; |
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854 l[++c] = '\0'; |
| 7 | 855 xxdline(fpo, l, 1); |
| 856 } | |
| 857 else if (autoskip) | |
| 1197 | 858 xxdline(fpo, l, -1); /* last chance to flush out suppressed lines */ |
| 7 | 859 |
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860 fclose_or_die(fp, fpo); |
| 7 | 861 return 0; |
| 862 } | |
| 2752 | 863 |
| 864 /* vi:set ts=8 sw=4 sts=2 cino+={2 cino+=n-2 : */ |