Mercurial > vim
annotate src/xxd/xxd.c @ 2752:0f7f66682a55 v7.3.152
updated for version 7.3.152
Problem: Xxd does not check for errors from library functions.
Solution: Add error checks. (Florian Zumbiehl)
| author | Bram Moolenaar <bram@vim.org> |
|---|---|
| date | Fri, 01 Apr 2011 19:14:40 +0200 |
| parents | 24eb7921b8f0 |
| children | d0cae5983609 |
| 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... | |
| 38 * 18.07.96 gcc -Wall @ SunOS4 is now slient. | |
| 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 | |
| 7 | 54 * |
| 55 * (c) 1990-1998 by Juergen Weigert (jnweiger@informatik.uni-erlangen.de) | |
| 56 * | |
| 57 * Small changes made afterwards by Bram Moolenaar et al. | |
| 58 * | |
| 59 * Distribute freely and credit me, | |
| 60 * make money and share with me, | |
| 61 * lose money and don't ask me. | |
| 62 */ | |
| 714 | 63 |
| 64 /* Visual Studio 2005 has 'deprecated' many of the standard CRT functions */ | |
| 65 #if _MSC_VER >= 1400 | |
| 66 # define _CRT_SECURE_NO_DEPRECATE | |
| 67 # define _CRT_NONSTDC_NO_DEPRECATE | |
| 68 #endif | |
| 1912 | 69 #if !defined(CYGWIN) && (defined(CYGWIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__)) |
| 70 # define CYGWIN | |
| 71 #endif | |
| 714 | 72 |
| 7 | 73 #include <stdio.h> |
| 74 #ifdef VAXC | |
| 75 # include <file.h> | |
| 76 #else | |
| 77 # include <fcntl.h> | |
| 78 #endif | |
| 79 #ifdef __TSC__ | |
| 80 # define MSDOS | |
| 81 #endif | |
| 82 #if !defined(OS2) && defined(__EMX__) | |
| 83 # define OS2 | |
| 84 #endif | |
| 1912 | 85 #if defined(MSDOS) || defined(WIN32) || defined(OS2) || defined(__BORLANDC__) \ |
| 86 || defined(CYGWIN) | |
| 7 | 87 # include <io.h> /* for setmode() */ |
| 88 #else | |
| 89 # ifdef UNIX | |
| 90 # include <unistd.h> | |
| 91 # endif | |
| 92 #endif | |
| 93 #include <stdlib.h> | |
| 94 #include <string.h> /* for strncmp() */ | |
| 95 #include <ctype.h> /* for isalnum() */ | |
| 96 #if __MWERKS__ && !defined(BEBOX) | |
| 97 # include <unix.h> /* for fdopen() on MAC */ | |
| 98 #endif | |
| 99 | |
| 100 #if defined(__BORLANDC__) && __BORLANDC__ <= 0x0410 && !defined(fileno) | |
| 101 /* Missing define and prototype grabbed from the BC 4.0 <stdio.h> */ | |
| 102 # define fileno(f) ((f)->fd) | |
| 103 FILE _FAR *_Cdecl _FARFUNC fdopen(int __handle, char _FAR *__type); | |
| 104 #endif | |
| 105 | |
| 106 | |
| 107 /* This corrects the problem of missing prototypes for certain functions | |
| 108 * in some GNU installations (e.g. SunOS 4.1.x). | |
| 109 * Darren Hiebert <darren@hmi.com> (sparc-sun-sunos4.1.3_U1/2.7.2.2) | |
| 110 */ | |
| 111 #if defined(__GNUC__) && defined(__STDC__) | |
| 112 # ifndef __USE_FIXED_PROTOTYPES__ | |
| 113 # define __USE_FIXED_PROTOTYPES__ | |
| 114 # endif | |
| 115 #endif | |
| 116 | |
| 117 #ifndef __USE_FIXED_PROTOTYPES__ | |
| 118 /* | |
| 119 * This is historic and works only if the compiler really has no prototypes: | |
| 120 * | |
| 121 * Include prototypes for Sun OS 4.x, when using an ANSI compiler. | |
| 122 * FILE is defined on OS 4.x, not on 5.x (Solaris). | |
| 123 * if __SVR4 is defined (some Solaris versions), don't include this. | |
| 124 */ | |
| 125 #if defined(sun) && defined(FILE) && !defined(__SVR4) && defined(__STDC__) | |
| 126 # define __P(a) a | |
| 127 /* excerpt from my sun_stdlib.h */ | |
| 128 extern int fprintf __P((FILE *, char *, ...)); | |
| 129 extern int fputs __P((char *, FILE *)); | |
| 130 extern int _flsbuf __P((unsigned char, FILE *)); | |
| 131 extern int _filbuf __P((FILE *)); | |
| 132 extern int fflush __P((FILE *)); | |
| 133 extern int fclose __P((FILE *)); | |
| 134 extern int fseek __P((FILE *, long, int)); | |
| 135 extern int rewind __P((FILE *)); | |
| 136 | |
| 137 extern void perror __P((char *)); | |
| 138 # endif | |
| 139 #endif | |
| 140 | |
| 141 extern long int strtol(); | |
| 142 extern long int ftell(); | |
| 143 | |
| 144 char version[] = "xxd V1.10 27oct98 by Juergen Weigert"; | |
| 145 #ifdef WIN32 | |
| 146 char osver[] = " (Win32)"; | |
| 147 #else | |
| 148 # ifdef DJGPP | |
| 149 char osver[] = " (dos 32 bit)"; | |
| 150 # else | |
| 151 # ifdef MSDOS | |
| 152 char osver[] = " (dos 16 bit)"; | |
| 153 # else | |
| 154 char osver[] = ""; | |
| 155 # endif | |
| 156 # endif | |
| 157 #endif | |
| 158 | |
| 602 | 159 #if defined(MSDOS) || defined(WIN32) || defined(OS2) |
| 7 | 160 # define BIN_READ(yes) ((yes) ? "rb" : "rt") |
| 161 # define BIN_WRITE(yes) ((yes) ? "wb" : "wt") | |
| 162 # define BIN_CREAT(yes) ((yes) ? (O_CREAT|O_BINARY) : O_CREAT) | |
| 163 # define BIN_ASSIGN(fp, yes) setmode(fileno(fp), (yes) ? O_BINARY : O_TEXT) | |
| 602 | 164 # define PATH_SEP '\\' |
| 165 #elif defined(CYGWIN) | |
| 166 # define BIN_READ(yes) ((yes) ? "rb" : "rt") | |
| 167 # define BIN_WRITE(yes) ((yes) ? "wb" : "w") | |
| 168 # define BIN_CREAT(yes) ((yes) ? (O_CREAT|O_BINARY) : O_CREAT) | |
| 169 # define BIN_ASSIGN(fp, yes) ((yes) ? (void) setmode(fileno(fp), O_BINARY) : (void) (fp)) | |
| 170 # define PATH_SEP '/' | |
| 7 | 171 #else |
| 172 # ifdef VMS | |
| 173 # define BIN_READ(dummy) "r" | |
| 174 # define BIN_WRITE(dummy) "w" | |
| 175 # define BIN_CREAT(dummy) O_CREAT | |
| 176 # define BIN_ASSIGN(fp, dummy) fp | |
| 177 # define PATH_SEP ']' | |
| 178 # define FILE_SEP '.' | |
| 179 # else | |
| 180 # define BIN_READ(dummy) "r" | |
| 181 # define BIN_WRITE(dummy) "w" | |
| 182 # define BIN_CREAT(dummy) O_CREAT | |
| 183 # define BIN_ASSIGN(fp, dummy) fp | |
| 184 # define PATH_SEP '/' | |
| 185 # endif | |
| 186 #endif | |
| 187 | |
| 188 /* open has only to arguments on the Mac */ | |
| 189 #if __MWERKS__ | |
| 190 # define OPEN(name, mode, umask) open(name, mode) | |
| 191 #else | |
| 192 # define OPEN(name, mode, umask) open(name, mode, umask) | |
| 193 #endif | |
| 194 | |
| 195 #ifdef AMIGA | |
| 196 # define STRNCMP(s1, s2, l) strncmp(s1, s2, (size_t)l) | |
| 197 #else | |
| 198 # define STRNCMP(s1, s2, l) strncmp(s1, s2, l) | |
| 199 #endif | |
| 200 | |
| 201 #ifndef __P | |
| 202 # if defined(__STDC__) || defined(MSDOS) || defined(WIN32) || defined(OS2) \ | |
| 203 || defined(__BORLANDC__) | |
| 204 # define __P(a) a | |
| 205 # else | |
| 206 # define __P(a) () | |
| 207 # endif | |
| 208 #endif | |
| 209 | |
| 210 /* Let's collect some prototypes */ | |
| 211 /* CodeWarrior is really picky about missing prototypes */ | |
| 2752 | 212 static void exit_with_usage __P((void)); |
| 213 static int huntype __P((FILE *, FILE *, FILE *, int, int, long)); | |
| 7 | 214 static void xxdline __P((FILE *, char *, int)); |
| 215 | |
| 216 #define TRY_SEEK /* attempt to use lseek, or skip forward by reading */ | |
| 217 #define COLS 256 /* change here, if you ever need more columns */ | |
| 1452 | 218 #define LLEN (11 + (9*COLS-1)/1 + COLS + 2) |
| 7 | 219 |
| 220 char hexxa[] = "0123456789abcdef0123456789ABCDEF", *hexx = hexxa; | |
| 221 | |
| 222 /* the different hextypes known by this program: */ | |
| 223 #define HEX_NORMAL 0 | |
| 224 #define HEX_POSTSCRIPT 1 | |
| 225 #define HEX_CINCLUDE 2 | |
| 226 #define HEX_BITS 3 /* not hex a dump, but bits: 01111001 */ | |
| 227 | |
| 2752 | 228 static char *pname; |
| 229 | |
| 230 static void | |
| 231 exit_with_usage() | |
| 7 | 232 { |
| 233 fprintf(stderr, "Usage:\n %s [options] [infile [outfile]]\n", pname); | |
| 234 fprintf(stderr, " or\n %s -r [-s [-]offset] [-c cols] [-ps] [infile [outfile]]\n", pname); | |
| 235 fprintf(stderr, "Options:\n"); | |
| 236 fprintf(stderr, " -a toggle autoskip: A single '*' replaces nul-lines. Default off.\n"); | |
|
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237 fprintf(stderr, " -b binary digit dump (incompatible with -ps,-i,-r). Default hex.\n"); |
| 7 | 238 fprintf(stderr, " -c cols format <cols> octets per line. Default 16 (-i: 12, -ps: 30).\n"); |
| 239 fprintf(stderr, " -E show characters in EBCDIC. Default ASCII.\n"); | |
| 240 fprintf(stderr, " -g number of octets per group in normal output. Default 2.\n"); | |
| 241 fprintf(stderr, " -h print this summary.\n"); | |
| 242 fprintf(stderr, " -i output in C include file style.\n"); | |
| 243 fprintf(stderr, " -l len stop after <len> octets.\n"); | |
| 244 fprintf(stderr, " -ps output in postscript plain hexdump style.\n"); | |
| 245 fprintf(stderr, " -r reverse operation: convert (or patch) hexdump into binary.\n"); | |
| 246 fprintf(stderr, " -r -s off revert with <off> added to file positions found in hexdump.\n"); | |
| 247 fprintf(stderr, " -s %sseek start at <seek> bytes abs. %sinfile offset.\n", | |
| 248 #ifdef TRY_SEEK | |
| 249 "[+][-]", "(or +: rel.) "); | |
| 250 #else | |
| 251 "", ""); | |
| 252 #endif | |
| 253 fprintf(stderr, " -u use upper case hex letters.\n"); | |
| 254 fprintf(stderr, " -v show version: \"%s%s\".\n", version, osver); | |
| 255 exit(1); | |
| 256 } | |
| 257 | |
| 2752 | 258 static void |
| 259 die(ret) | |
| 260 int ret; | |
| 261 { | |
| 262 fprintf(stderr, "%s: ", pname); | |
| 263 perror(NULL); | |
| 264 exit(ret); | |
| 265 } | |
| 266 | |
| 7 | 267 /* |
| 268 * Max. cols binary characters are decoded from the input stream per line. | |
| 269 * Two adjacent garbage characters after evaluated data delimit valid data. | |
| 270 * Everything up to the next newline is discarded. | |
| 271 * | |
| 272 * The name is historic and came from 'undo type opt h'. | |
| 273 */ | |
| 2752 | 274 static int |
| 275 huntype(fpi, fpo, fperr, cols, hextype, base_off) | |
| 276 FILE *fpi, *fpo, *fperr; | |
| 277 int cols, hextype; | |
| 278 long base_off; | |
| 7 | 279 { |
| 280 int c, ign_garb = 1, n1 = -1, n2 = 0, n3, p = cols; | |
| 281 long have_off = 0, want_off = 0; | |
| 282 | |
| 283 rewind(fpi); | |
| 284 | |
| 285 while ((c = getc(fpi)) != EOF) | |
| 286 { | |
| 287 if (c == '\r') /* Doze style input file? */ | |
| 288 continue; | |
| 289 | |
|
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290 /* Allow multiple spaces. This doesn't work when there is normal text |
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parents:
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291 * after the hex codes in the last line that looks like hex, thus only |
|
24eb7921b8f0
updated for version 7.2.367
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parents:
1912
diff
changeset
|
292 * use it for PostScript format. */ |
|
24eb7921b8f0
updated for version 7.2.367
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parents:
1912
diff
changeset
|
293 if (hextype == HEX_POSTSCRIPT && (c == ' ' || c == '\n' || c == '\t')) |
| 856 | 294 continue; |
| 809 | 295 |
| 7 | 296 n3 = n2; |
| 297 n2 = n1; | |
| 298 | |
| 299 if (c >= '0' && c <= '9') | |
| 300 n1 = c - '0'; | |
| 301 else if (c >= 'a' && c <= 'f') | |
| 302 n1 = c - 'a' + 10; | |
| 303 else if (c >= 'A' && c <= 'F') | |
| 304 n1 = c - 'A' + 10; | |
| 305 else | |
| 306 { | |
| 307 n1 = -1; | |
| 308 if (ign_garb) | |
| 309 continue; | |
| 310 } | |
| 311 | |
| 312 ign_garb = 0; | |
| 313 | |
| 314 if (p >= cols) | |
| 315 { | |
| 316 if (!hextype) | |
| 317 { | |
| 318 if (n1 < 0) | |
| 319 { | |
| 320 p = 0; | |
| 321 continue; | |
| 322 } | |
| 323 want_off = (want_off << 4) | n1; | |
| 324 continue; | |
| 325 } | |
| 326 else | |
| 327 p = 0; | |
| 328 } | |
| 329 | |
| 330 if (base_off + want_off != have_off) | |
| 331 { | |
| 2752 | 332 if (fflush(fpo) != 0) |
| 333 die(3); | |
| 7 | 334 #ifdef TRY_SEEK |
| 335 c = fseek(fpo, base_off + want_off - have_off, 1); | |
| 336 if (c >= 0) | |
| 337 have_off = base_off + want_off; | |
| 338 #endif | |
| 339 if (base_off + want_off < have_off) | |
| 340 { | |
| 341 fprintf(fperr, "%s: sorry, cannot seek backwards.\n", pname); | |
| 342 return 5; | |
| 343 } | |
| 344 for (; have_off < base_off + want_off; have_off++) | |
| 2752 | 345 if (putc(0, fpo) == EOF) |
| 346 die(3); | |
| 7 | 347 } |
| 348 | |
| 349 if (n2 >= 0 && n1 >= 0) | |
| 350 { | |
| 2752 | 351 if (putc((n2 << 4) | n1, fpo) == EOF) |
| 352 die(3); | |
| 7 | 353 have_off++; |
| 354 want_off++; | |
| 355 n1 = -1; | |
| 356 if ((++p >= cols) && !hextype) | |
| 357 { | |
| 809 | 358 /* skip rest of line as garbage */ |
| 7 | 359 want_off = 0; |
| 360 while ((c = getc(fpi)) != '\n' && c != EOF) | |
| 361 ; | |
| 2752 | 362 if (c == EOF && ferror(fpi)) |
| 363 die(2); | |
| 7 | 364 ign_garb = 1; |
| 365 } | |
| 366 } | |
| 367 else if (n1 < 0 && n2 < 0 && n3 < 0) | |
| 368 { | |
| 369 /* already stumbled into garbage, skip line, wait and see */ | |
| 370 if (!hextype) | |
| 371 want_off = 0; | |
| 372 while ((c = getc(fpi)) != '\n' && c != EOF) | |
| 373 ; | |
| 2752 | 374 if (c == EOF && ferror(fpi)) |
| 375 die(2); | |
| 7 | 376 ign_garb = 1; |
| 377 } | |
| 378 } | |
| 2752 | 379 if (fflush(fpo) != 0) |
| 380 die(3); | |
| 7 | 381 #ifdef TRY_SEEK |
| 382 fseek(fpo, 0L, 2); | |
| 383 #endif | |
| 2752 | 384 if (fclose(fpo) != 0) |
| 385 die(3); | |
| 386 if (fclose(fpi) != 0) | |
| 387 die(2); | |
| 7 | 388 return 0; |
| 389 } | |
| 390 | |
| 391 /* | |
| 392 * Print line l. If nz is false, xxdline regards the line a line of | |
| 393 * zeroes. If there are three or more consecutive lines of zeroes, | |
| 394 * they are replaced by a single '*' character. | |
| 395 * | |
| 396 * If the output ends with more than two lines of zeroes, you | |
| 397 * should call xxdline again with l being the last line and nz | |
| 398 * negative. This ensures that the last line is shown even when | |
| 399 * it is all zeroes. | |
| 400 * | |
| 401 * If nz is always positive, lines are never suppressed. | |
| 402 */ | |
| 2752 | 403 static void |
| 7 | 404 xxdline(fp, l, nz) |
| 2752 | 405 FILE *fp; |
| 406 char *l; | |
| 407 int nz; | |
| 7 | 408 { |
| 409 static char z[LLEN+1]; | |
| 410 static int zero_seen = 0; | |
| 411 | |
| 412 if (!nz && zero_seen == 1) | |
| 413 strcpy(z, l); | |
| 414 | |
| 415 if (nz || !zero_seen++) | |
| 416 { | |
| 417 if (nz) | |
| 418 { | |
| 419 if (nz < 0) | |
| 420 zero_seen--; | |
| 421 if (zero_seen == 2) | |
| 2752 | 422 if (fputs(z, fp) == EOF) |
| 423 die(3); | |
| 7 | 424 if (zero_seen > 2) |
| 2752 | 425 if (fputs("*\n", fp) == EOF) |
| 426 die(3); | |
| 7 | 427 } |
| 428 if (nz >= 0 || zero_seen > 0) | |
| 2752 | 429 if (fputs(l, fp) == EOF) |
| 430 die(3); | |
| 7 | 431 if (nz) |
| 432 zero_seen = 0; | |
| 433 } | |
| 434 } | |
| 435 | |
| 436 /* This is an EBCDIC to ASCII conversion table */ | |
| 437 /* from a proposed BTL standard April 16, 1979 */ | |
| 438 static unsigned char etoa64[] = | |
| 439 { | |
| 440 0040,0240,0241,0242,0243,0244,0245,0246, | |
| 441 0247,0250,0325,0056,0074,0050,0053,0174, | |
| 442 0046,0251,0252,0253,0254,0255,0256,0257, | |
| 443 0260,0261,0041,0044,0052,0051,0073,0176, | |
| 444 0055,0057,0262,0263,0264,0265,0266,0267, | |
| 445 0270,0271,0313,0054,0045,0137,0076,0077, | |
| 446 0272,0273,0274,0275,0276,0277,0300,0301, | |
| 447 0302,0140,0072,0043,0100,0047,0075,0042, | |
| 448 0303,0141,0142,0143,0144,0145,0146,0147, | |
| 449 0150,0151,0304,0305,0306,0307,0310,0311, | |
| 450 0312,0152,0153,0154,0155,0156,0157,0160, | |
| 451 0161,0162,0136,0314,0315,0316,0317,0320, | |
| 452 0321,0345,0163,0164,0165,0166,0167,0170, | |
| 453 0171,0172,0322,0323,0324,0133,0326,0327, | |
| 454 0330,0331,0332,0333,0334,0335,0336,0337, | |
| 455 0340,0341,0342,0343,0344,0135,0346,0347, | |
| 456 0173,0101,0102,0103,0104,0105,0106,0107, | |
| 457 0110,0111,0350,0351,0352,0353,0354,0355, | |
| 458 0175,0112,0113,0114,0115,0116,0117,0120, | |
| 459 0121,0122,0356,0357,0360,0361,0362,0363, | |
| 460 0134,0237,0123,0124,0125,0126,0127,0130, | |
| 461 0131,0132,0364,0365,0366,0367,0370,0371, | |
| 462 0060,0061,0062,0063,0064,0065,0066,0067, | |
| 463 0070,0071,0372,0373,0374,0375,0376,0377 | |
| 464 }; | |
| 465 | |
| 2752 | 466 int |
| 7 | 467 main(argc, argv) |
| 2752 | 468 int argc; |
| 469 char *argv[]; | |
| 7 | 470 { |
| 471 FILE *fp, *fpo; | |
| 472 int c, e, p = 0, relseek = 1, negseek = 0, revert = 0; | |
| 473 int cols = 0, nonzero = 0, autoskip = 0, hextype = HEX_NORMAL; | |
| 474 int ebcdic = 0; | |
| 475 int octspergrp = -1; /* number of octets grouped in output */ | |
| 476 int grplen; /* total chars per octet group */ | |
| 477 long length = -1, n = 0, seekoff = 0; | |
| 478 char l[LLEN+1]; | |
| 2752 | 479 char *pp; |
| 7 | 480 |
| 481 #ifdef AMIGA | |
| 482 /* This program doesn't work when started from the Workbench */ | |
| 483 if (argc == 0) | |
| 484 exit(1); | |
| 485 #endif | |
| 486 | |
| 487 pname = argv[0]; | |
| 488 for (pp = pname; *pp; ) | |
| 489 if (*pp++ == PATH_SEP) | |
| 490 pname = pp; | |
| 491 #ifdef FILE_SEP | |
| 492 for (pp = pname; *pp; pp++) | |
| 493 if (*pp == FILE_SEP) | |
| 494 { | |
| 495 *pp = '\0'; | |
| 496 break; | |
| 497 } | |
| 498 #endif | |
| 499 | |
| 500 while (argc >= 2) | |
| 501 { | |
| 502 pp = argv[1] + (!STRNCMP(argv[1], "--", 2) && argv[1][2]); | |
| 503 if (!STRNCMP(pp, "-a", 2)) autoskip = 1 - autoskip; | |
| 504 else if (!STRNCMP(pp, "-b", 2)) hextype = HEX_BITS; | |
| 505 else if (!STRNCMP(pp, "-u", 2)) hexx = hexxa + 16; | |
| 506 else if (!STRNCMP(pp, "-p", 2)) hextype = HEX_POSTSCRIPT; | |
| 507 else if (!STRNCMP(pp, "-i", 2)) hextype = HEX_CINCLUDE; | |
| 508 else if (!STRNCMP(pp, "-r", 2)) revert++; | |
| 509 else if (!STRNCMP(pp, "-E", 2)) ebcdic++; | |
| 510 else if (!STRNCMP(pp, "-v", 2)) | |
| 511 { | |
| 512 fprintf(stderr, "%s%s\n", version, osver); | |
| 513 exit(0); | |
| 514 } | |
| 515 else if (!STRNCMP(pp, "-c", 2)) | |
| 516 { | |
| 517 if (pp[2] && STRNCMP("ols", pp + 2, 3)) | |
| 518 cols = (int)strtol(pp + 2, NULL, 0); | |
| 519 else | |
| 520 { | |
| 521 if (!argv[2]) | |
| 2752 | 522 exit_with_usage(); |
| 7 | 523 cols = (int)strtol(argv[2], NULL, 0); |
| 524 argv++; | |
| 525 argc--; | |
| 526 } | |
| 527 } | |
| 528 else if (!STRNCMP(pp, "-g", 2)) | |
| 529 { | |
| 530 if (pp[2] && STRNCMP("group", pp + 2, 5)) | |
| 531 octspergrp = (int)strtol(pp + 2, NULL, 0); | |
| 532 else | |
| 533 { | |
| 534 if (!argv[2]) | |
| 2752 | 535 exit_with_usage(); |
| 7 | 536 octspergrp = (int)strtol(argv[2], NULL, 0); |
| 537 argv++; | |
| 538 argc--; | |
| 539 } | |
| 540 } | |
| 541 else if (!STRNCMP(pp, "-s", 2)) | |
| 542 { | |
| 543 relseek = 0; | |
| 544 negseek = 0; | |
| 545 if (pp[2] && STRNCMP("kip", pp+2, 3) && STRNCMP("eek", pp+2, 3)) | |
| 546 { | |
| 547 #ifdef TRY_SEEK | |
| 548 if (pp[2] == '+') | |
| 549 relseek++; | |
| 550 if (pp[2+relseek] == '-') | |
| 551 negseek++; | |
| 552 #endif | |
| 553 seekoff = strtol(pp + 2+relseek+negseek, (char **)NULL, 0); | |
| 554 } | |
| 555 else | |
| 556 { | |
| 557 if (!argv[2]) | |
| 2752 | 558 exit_with_usage(); |
| 7 | 559 #ifdef TRY_SEEK |
| 560 if (argv[2][0] == '+') | |
| 561 relseek++; | |
| 562 if (argv[2][relseek] == '-') | |
| 563 negseek++; | |
| 564 #endif | |
| 565 seekoff = strtol(argv[2] + relseek+negseek, (char **)NULL, 0); | |
| 566 argv++; | |
| 567 argc--; | |
| 568 } | |
| 569 } | |
| 570 else if (!STRNCMP(pp, "-l", 2)) | |
| 571 { | |
| 572 if (pp[2] && STRNCMP("en", pp + 2, 2)) | |
| 573 length = strtol(pp + 2, (char **)NULL, 0); | |
| 574 else | |
| 575 { | |
| 576 if (!argv[2]) | |
| 2752 | 577 exit_with_usage(); |
| 7 | 578 length = strtol(argv[2], (char **)NULL, 0); |
| 579 argv++; | |
| 580 argc--; | |
| 581 } | |
| 582 } | |
| 583 else if (!strcmp(pp, "--")) /* end of options */ | |
| 584 { | |
| 585 argv++; | |
| 586 argc--; | |
| 587 break; | |
| 588 } | |
| 589 else if (pp[0] == '-' && pp[1]) /* unknown option */ | |
| 2752 | 590 exit_with_usage(); |
| 7 | 591 else |
| 592 break; /* not an option */ | |
| 593 | |
| 594 argv++; /* advance to next argument */ | |
| 595 argc--; | |
| 596 } | |
| 597 | |
| 598 if (!cols) | |
| 599 switch (hextype) | |
| 600 { | |
| 601 case HEX_POSTSCRIPT: cols = 30; break; | |
| 602 case HEX_CINCLUDE: cols = 12; break; | |
| 603 case HEX_BITS: cols = 6; break; | |
| 604 case HEX_NORMAL: | |
| 605 default: cols = 16; break; | |
| 606 } | |
| 607 | |
| 608 if (octspergrp < 0) | |
| 609 switch (hextype) | |
| 610 { | |
| 611 case HEX_BITS: octspergrp = 1; break; | |
| 612 case HEX_NORMAL: octspergrp = 2; break; | |
| 613 case HEX_POSTSCRIPT: | |
| 614 case HEX_CINCLUDE: | |
| 615 default: octspergrp = 0; break; | |
| 616 } | |
| 617 | |
| 1452 | 618 if (cols < 1 || ((hextype == HEX_NORMAL || hextype == HEX_BITS) |
| 619 && (cols > COLS))) | |
| 7 | 620 { |
| 621 fprintf(stderr, "%s: invalid number of columns (max. %d).\n", pname, COLS); | |
| 622 exit(1); | |
| 623 } | |
| 624 | |
| 625 if (octspergrp < 1) | |
| 626 octspergrp = cols; | |
| 627 | |
| 628 if (argc > 3) | |
| 2752 | 629 exit_with_usage(); |
| 7 | 630 |
| 631 if (argc == 1 || (argv[1][0] == '-' && !argv[1][1])) | |
| 632 BIN_ASSIGN(fp = stdin, !revert); | |
| 633 else | |
| 634 { | |
| 635 if ((fp = fopen(argv[1], BIN_READ(!revert))) == NULL) | |
| 636 { | |
| 637 fprintf(stderr,"%s: ", pname); | |
| 638 perror(argv[1]); | |
| 639 return 2; | |
| 640 } | |
| 641 } | |
| 642 | |
| 643 if (argc < 3 || (argv[2][0] == '-' && !argv[2][1])) | |
| 644 BIN_ASSIGN(fpo = stdout, revert); | |
| 645 else | |
| 646 { | |
| 647 int fd; | |
| 648 int mode = revert ? O_WRONLY : (O_TRUNC|O_WRONLY); | |
| 649 | |
| 650 if (((fd = OPEN(argv[2], mode | BIN_CREAT(revert), 0666)) < 0) || | |
| 651 (fpo = fdopen(fd, BIN_WRITE(revert))) == NULL) | |
| 652 { | |
| 653 fprintf(stderr, "%s: ", pname); | |
| 654 perror(argv[2]); | |
| 655 return 3; | |
| 656 } | |
| 657 rewind(fpo); | |
| 658 } | |
| 659 | |
| 660 if (revert) | |
| 661 { | |
| 662 if (hextype && (hextype != HEX_POSTSCRIPT)) | |
| 663 { | |
| 664 fprintf(stderr, "%s: sorry, cannot revert this type of hexdump\n", pname); | |
| 665 return -1; | |
| 666 } | |
| 2752 | 667 return huntype(fp, fpo, stderr, cols, hextype, |
| 7 | 668 negseek ? -seekoff : seekoff); |
| 669 } | |
| 670 | |
| 671 if (seekoff || negseek || !relseek) | |
| 672 { | |
| 673 #ifdef TRY_SEEK | |
| 674 if (relseek) | |
| 675 e = fseek(fp, negseek ? -seekoff : seekoff, 1); | |
| 676 else | |
| 677 e = fseek(fp, negseek ? -seekoff : seekoff, negseek ? 2 : 0); | |
| 678 if (e < 0 && negseek) | |
| 679 { | |
| 680 fprintf(stderr, "%s: sorry cannot seek.\n", pname); | |
| 681 return 4; | |
| 682 } | |
| 683 if (e >= 0) | |
| 684 seekoff = ftell(fp); | |
| 685 else | |
| 686 #endif | |
| 687 { | |
| 688 long s = seekoff; | |
| 689 | |
| 690 while (s--) | |
| 2752 | 691 if (getc(fp) == EOF) |
| 692 if (ferror(fp)) | |
| 693 { | |
| 694 die(2); | |
| 695 } | |
| 696 else | |
| 697 { | |
| 698 fprintf(stderr, "%s: sorry cannot seek.\n", pname); | |
| 699 return 4; | |
| 700 } | |
| 7 | 701 } |
| 702 } | |
| 703 | |
| 704 if (hextype == HEX_CINCLUDE) | |
| 705 { | |
| 706 if (fp != stdin) | |
| 707 { | |
| 2752 | 708 if (fprintf(fpo, "unsigned char %s", isdigit((int)argv[1][0]) ? "__" : "") < 0) |
| 709 die(3); | |
| 7 | 710 for (e = 0; (c = argv[1][e]) != 0; e++) |
| 2752 | 711 if (putc(isalnum(c) ? c : '_', fpo) == EOF) |
| 712 die(3); | |
| 713 if (fputs("[] = {\n", fpo) == EOF) | |
| 714 die(3); | |
| 7 | 715 } |
| 716 | |
| 717 p = 0; | |
| 2752 | 718 c = 0; |
| 7 | 719 while ((length < 0 || p < length) && (c = getc(fp)) != EOF) |
| 720 { | |
| 2752 | 721 if (fprintf(fpo, (hexx == hexxa) ? "%s0x%02x" : "%s0X%02X", |
| 722 (p % cols) ? ", " : ",\n "+2*!p, c) < 0) | |
| 723 die(3); | |
| 7 | 724 p++; |
| 725 } | |
| 2752 | 726 if (c == EOF && ferror(fp)) |
| 727 die(2); | |
| 7 | 728 |
| 729 if (p) | |
| 2752 | 730 if (fputs("\n};\n" + 3 * (fp == stdin), fpo) == EOF) |
| 731 die(3); | |
| 7 | 732 |
| 733 if (fp != stdin) | |
| 734 { | |
| 2752 | 735 if (fprintf(fpo, "unsigned int %s", isdigit((int)argv[1][0]) ? "__" : "") < 0) |
| 736 die(3); | |
| 7 | 737 for (e = 0; (c = argv[1][e]) != 0; e++) |
| 2752 | 738 if (putc(isalnum(c) ? c : '_', fpo) == EOF) |
| 739 die(3); | |
| 740 if (fprintf(fpo, "_len = %d;\n", p) < 0) | |
| 741 die(3); | |
| 7 | 742 } |
| 743 | |
| 2752 | 744 if (fclose(fp)) |
| 745 die(2); | |
| 746 if (fclose(fpo)) | |
| 747 die(3); | |
| 7 | 748 return 0; |
| 749 } | |
| 750 | |
| 751 if (hextype == HEX_POSTSCRIPT) | |
| 752 { | |
| 753 p = cols; | |
| 2752 | 754 e = 0; |
| 7 | 755 while ((length < 0 || n < length) && (e = getc(fp)) != EOF) |
| 756 { | |
| 2752 | 757 if (putc(hexx[(e >> 4) & 0xf], fpo) == EOF |
| 758 || putc(hexx[e & 0xf], fpo) == EOF) | |
| 759 die(3); | |
| 7 | 760 n++; |
| 761 if (!--p) | |
| 762 { | |
| 2752 | 763 if (putc('\n', fpo) == EOF) |
| 764 die(3); | |
| 7 | 765 p = cols; |
| 766 } | |
| 767 } | |
| 2752 | 768 if (e == EOF && ferror(fp)) |
| 769 die(2); | |
| 7 | 770 if (p < cols) |
| 2752 | 771 if (putc('\n', fpo) == EOF) |
| 772 die(3); | |
| 773 if (fclose(fp)) | |
| 774 die(2); | |
| 775 if (fclose(fpo)) | |
| 776 die(3); | |
| 7 | 777 return 0; |
| 778 } | |
| 779 | |
| 780 /* hextype: HEX_NORMAL or HEX_BITS */ | |
| 781 | |
| 782 if (hextype == HEX_NORMAL) | |
| 783 grplen = octspergrp + octspergrp + 1; /* chars per octet group */ | |
| 784 else /* hextype == HEX_BITS */ | |
| 785 grplen = 8 * octspergrp + 1; | |
| 786 | |
| 2752 | 787 e = 0; |
| 7 | 788 while ((length < 0 || n < length) && (e = getc(fp)) != EOF) |
| 789 { | |
| 790 if (p == 0) | |
| 791 { | |
| 792 sprintf(l, "%07lx: ", n + seekoff); | |
| 793 for (c = 9; c < LLEN; l[c++] = ' '); | |
| 794 } | |
| 795 if (hextype == HEX_NORMAL) | |
| 796 { | |
| 797 l[c = (9 + (grplen * p) / octspergrp)] = hexx[(e >> 4) & 0xf]; | |
| 798 l[++c] = hexx[ e & 0xf]; | |
| 799 } | |
| 800 else /* hextype == HEX_BITS */ | |
| 801 { | |
| 802 int i; | |
| 803 | |
| 804 c = (9 + (grplen * p) / octspergrp) - 1; | |
| 805 for (i = 7; i >= 0; i--) | |
| 806 l[++c] = (e & (1 << i)) ? '1' : '0'; | |
| 807 } | |
| 808 if (ebcdic) | |
| 809 e = (e < 64) ? '.' : etoa64[e-64]; | |
| 1452 | 810 /* When changing this update definition of LLEN above. */ |
| 7 | 811 l[11 + (grplen * cols - 1)/octspergrp + p] = |
| 812 #ifdef __MVS__ | |
| 813 (e >= 64) | |
| 814 #else | |
| 815 (e > 31 && e < 127) | |
| 816 #endif | |
| 817 ? e : '.'; | |
| 818 if (e) | |
| 819 nonzero++; | |
| 820 n++; | |
| 821 if (++p == cols) | |
| 822 { | |
| 823 l[c = (11 + (grplen * cols - 1)/octspergrp + p)] = '\n'; l[++c] = '\0'; | |
| 824 xxdline(fpo, l, autoskip ? nonzero : 1); | |
| 825 nonzero = 0; | |
| 826 p = 0; | |
| 827 } | |
| 828 } | |
| 2752 | 829 if (e == EOF && ferror(fp)) |
| 830 die(2); | |
| 7 | 831 if (p) |
| 832 { | |
| 833 l[c = (11 + (grplen * cols - 1)/octspergrp + p)] = '\n'; l[++c] = '\0'; | |
| 834 xxdline(fpo, l, 1); | |
| 835 } | |
| 836 else if (autoskip) | |
| 1197 | 837 xxdline(fpo, l, -1); /* last chance to flush out suppressed lines */ |
| 7 | 838 |
| 2752 | 839 if (fclose(fp)) |
| 840 die(2); | |
| 841 if (fclose(fpo)) | |
| 842 die(3); | |
| 7 | 843 return 0; |
| 844 } | |
| 2752 | 845 |
| 846 /* vi:set ts=8 sw=4 sts=2 cino+={2 cino+=n-2 : */ |