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--- old/usr/src/cmd/file/file.c
+++ new/usr/src/cmd/file/file.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
22 22 /* All Rights Reserved */
23 23
24 24
25 25 /* Copyright (c) 1987, 1988 Microsoft Corporation */
26 26 /* All Rights Reserved */
27 27
28 28 /*
29 29 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
30 30 * Use is subject to license terms.
31 31 * Copyright (c) 2018, Joyent, Inc.
32 32 */
33 33
34 34 #define _LARGEFILE64_SOURCE
35 35
36 36 /* Get definitions for the relocation types supported. */
37 37 #define ELF_TARGET_ALL
38 38
39 39 #include <ctype.h>
40 40 #include <unistd.h>
41 41 #include <fcntl.h>
42 42 #include <signal.h>
43 43 #include <stdio.h>
44 44 #include <libelf.h>
45 45 #include <stdlib.h>
46 46 #include <limits.h>
47 47 #include <locale.h>
48 48 #include <wctype.h>
49 49 #include <string.h>
50 50 #include <errno.h>
51 51 #include <door.h>
52 52 #include <sys/param.h>
53 53 #include <sys/types.h>
54 54 #include <sys/mkdev.h>
55 55 #include <sys/stat.h>
56 56 #include <sys/elf.h>
57 57 #include <procfs.h>
58 58 #include <sys/core.h>
59 59 #include <sys/dumphdr.h>
60 60 #include <netinet/in.h>
61 61 #include <gelf.h>
62 62 #include <elfcap.h>
63 63 #include <sgsrtcid.h>
64 64 #include "file.h"
65 65 #include "elf_read.h"
66 66
67 67 /*
68 68 * Misc
69 69 */
70 70
71 71 #define FBSZ 512
72 72 #define MLIST_SZ 12
73 73
74 74 /*
75 75 * The 0x8FCA0102 magic string was used in crash dumps generated by releases
76 76 * prior to Solaris 7.
77 77 */
78 78 #define OLD_DUMP_MAGIC 0x8FCA0102
79 79
80 80 #if defined(__sparc)
81 81 #define NATIVE_ISA "SPARC"
82 82 #define OTHER_ISA "Intel"
83 83 #else
84 84 #define NATIVE_ISA "Intel"
85 85 #define OTHER_ISA "SPARC"
86 86 #endif
87 87
88 88 /* Assembly language comment char */
89 89 #ifdef pdp11
90 90 #define ASCOMCHAR '/'
91 91 #else
92 92 #define ASCOMCHAR '!'
93 93 #endif
94 94
95 95 #pragma align 16(fbuf)
96 96 static char fbuf[FBSZ];
97 97
98 98 /*
99 99 * Magic file variables
100 100 */
101 101 static intmax_t maxmagicoffset;
102 102 static intmax_t tmpmax;
103 103 static char *magicbuf;
104 104
105 105 static char *dfile;
106 106 static char *troff[] = { /* new troff intermediate lang */
107 107 "x", "T", "res", "init", "font", "202", "V0", "p1", 0};
108 108
109 109 static char *fort[] = { /* FORTRAN */
110 110 "function", "subroutine", "common", "dimension", "block",
111 111 "integer", "real", "data", "double",
112 112 "FUNCTION", "SUBROUTINE", "COMMON", "DIMENSION", "BLOCK",
113 113 "INTEGER", "REAL", "DATA", "DOUBLE", 0};
114 114
115 115 static char *asc[] = { /* Assembler Commands */
116 116 "sys", "mov", "tst", "clr", "jmp", "cmp", "set", "inc",
117 117 "dec", 0};
118 118
119 119 static char *c[] = { /* C Language */
120 120 "int", "char", "float", "double", "short", "long", "unsigned",
121 121 "register", "static", "struct", "extern", 0};
122 122
123 123 static char *as[] = { /* Assembler Pseudo Ops, prepended with '.' */
124 124 "globl", "global", "ident", "file", "byte", "even",
125 125 "text", "data", "bss", "comm", 0};
126 126
127 127 /*
128 128 * The line and debug section names are used by the strip command.
129 129 * Any changes in the strip implementation need to be reflected here.
130 130 */
131 131 static char *debug_sections[] = { /* Debug sections in a ELF file */
132 132 ".debug", ".stab", ".dwarf", ".line", NULL};
133 133
134 134 /* start for MB env */
135 135 static wchar_t wchar;
136 136 static int length;
137 137 static int IS_ascii;
138 138 static int Max;
139 139 /* end for MB env */
140 140 static int i; /* global index into first 'fbsz' bytes of file */
141 141 static int fbsz;
142 142 static int ifd = -1;
143 143 static int elffd = -1;
144 144 static int tret;
145 145 static int hflg;
146 146 static int dflg;
147 147 static int mflg;
148 148 static int M_flg;
149 149 static int iflg;
150 150 static struct stat64 mbuf;
151 151
152 152 static char **mlist1; /* 1st ordered list of magic files */
153 153 static char **mlist2; /* 2nd ordered list of magic files */
154 154 static size_t mlist1_sz; /* number of ptrs allocated for mlist1 */
155 155 static size_t mlist2_sz; /* number of ptrs allocated for mlist2 */
156 156 static char **mlist1p; /* next entry in mlist1 */
157 157 static char **mlist2p; /* next entry in mlist2 */
158 158
159 159 static ssize_t mread;
160 160
161 161 static void ar_coff_or_aout(int ifd);
162 162 static int type(char *file);
163 163 static int def_position_tests(char *file);
164 164 static void def_context_tests(void);
165 165 static int troffint(char *bp, int n);
166 166 static int lookup(char **tab);
167 167 static int ccom(void);
168 168 static int ascom(void);
169 169 static int sccs(void);
170 170 static int english(char *bp, int n);
171 171 static int shellscript(char buf[], struct stat64 *sb);
172 172 static int elf_check(char *file);
173 173 static int get_door_target(char *, char *, size_t);
174 174 static int zipfile(char *, int);
175 175 static int is_crash_dump(const char *, int);
176 176 static void print_dumphdr(const int, const dumphdr_t *, uint32_t (*)(uint32_t),
177 177 const char *);
178 178 static uint32_t swap_uint32(uint32_t);
179 179 static uint32_t return_uint32(uint32_t);
180 180 static void usage(void);
181 181 static void default_magic(void);
182 182 static void add_to_mlist(char *, int);
183 183 static void fd_cleanup(void);
184 184 static int is_rtld_config(void);
185 185
186 186 /* from elf_read.c */
187 187 int elf_read32(int elffd, Elf_Info *EInfo);
188 188 int elf_read64(int elffd, Elf_Info *EInfo);
189 189
190 190 #ifdef XPG4
191 191 /* SUSv3 requires a single <space> after the colon */
192 192 #define prf(x) (void) printf("%s: ", x);
193 193 #else /* !XPG4 */
194 194 #define prf(x) (void) printf("%s:%s", x, (int)strlen(x) > 6 ? "\t" : "\t\t");
195 195 #endif /* XPG4 */
196 196
197 197 /*
198 198 * Static program identifier - used to prevent localization of the name "file"
199 199 * within individual error messages.
200 200 */
201 201 const char *File = "file";
202 202
203 203 int
204 204 main(int argc, char **argv)
205 205 {
206 206 char *p;
207 207 int ch;
208 208 FILE *fl;
209 209 int bflg = 0;
210 210 int cflg = 0;
211 211 int eflg = 0;
212 212 int fflg = 0;
213 213 char *ap = NULL;
214 214 int pathlen;
215 215 char **filep;
216 216
217 217 (void) setlocale(LC_ALL, "");
218 218 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */
219 219 #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */
220 220 #endif
221 221 (void) textdomain(TEXT_DOMAIN);
222 222
223 223 while ((ch = getopt(argc, argv, "M:bcdf:him:")) != EOF) {
224 224 switch (ch) {
225 225
226 226 case 'M':
227 227 add_to_mlist(optarg, !dflg);
228 228 M_flg++;
229 229 break;
230 230
231 231 case 'b':
232 232 bflg++;
233 233 break;
234 234
235 235 case 'c':
236 236 cflg++;
237 237 break;
238 238
239 239 case 'd':
240 240 if (!dflg) {
241 241 default_magic();
242 242 add_to_mlist(dfile, 0);
243 243 dflg++;
244 244 }
245 245 break;
246 246
247 247 case 'f':
248 248 fflg++;
249 249 errno = 0;
250 250 if ((fl = fopen(optarg, "r")) == NULL) {
251 251 int err = errno;
252 252 (void) fprintf(stderr, gettext("%s: cannot "
253 253 "open file %s: %s\n"), File, optarg,
254 254 err ? strerror(err) : "");
255 255 usage();
256 256 }
257 257 pathlen = pathconf("/", _PC_PATH_MAX);
258 258 if (pathlen == -1) {
259 259 int err = errno;
260 260 (void) fprintf(stderr, gettext("%s: cannot "
261 261 "determine maximum path length: %s\n"),
262 262 File, strerror(err));
263 263 exit(1);
264 264 }
265 265 pathlen += 2; /* for null and newline in fgets */
266 266 if ((ap = malloc(pathlen * sizeof (char))) == NULL) {
267 267 int err = errno;
268 268 (void) fprintf(stderr, gettext("%s: malloc "
269 269 "failed: %s\n"), File, strerror(err));
270 270 exit(2);
271 271 }
272 272 break;
273 273
274 274 case 'h':
275 275 hflg++;
276 276 break;
277 277
278 278 case 'i':
279 279 iflg++;
280 280 break;
281 281
282 282 case 'm':
283 283 add_to_mlist(optarg, !dflg);
284 284 mflg++;
285 285 break;
286 286
287 287 case '?':
288 288 eflg++;
289 289 break;
290 290 }
291 291 }
292 292 if (!cflg && !fflg && (eflg || optind == argc))
293 293 usage();
294 294 if (iflg && (dflg || mflg || M_flg)) {
295 295 usage();
296 296 }
297 297 if ((iflg && cflg) || (cflg && bflg)) {
298 298 usage();
299 299 }
300 300
301 301 if (!dflg && !mflg && !M_flg && !iflg) {
302 302 /* no -d, -m, nor -M option; also -i option doesn't need magic */
303 303 default_magic();
304 304 if (f_mkmtab(dfile, cflg, 0) == -1) {
305 305 exit(2);
306 306 }
307 307 }
308 308
309 309 else if (mflg && !M_flg && !dflg) {
310 310 /* -m specified without -d nor -M */
311 311
312 312 #ifdef XPG4 /* For SUSv3 only */
313 313
314 314 /*
315 315 * The default position-dependent magic file tests
316 316 * in /etc/magic will follow all the -m magic tests.
317 317 */
318 318
319 319 for (filep = mlist1; filep < mlist1p; filep++) {
320 320 if (f_mkmtab(*filep, cflg, 1) == -1) {
321 321 exit(2);
322 322 }
323 323 }
324 324 default_magic();
325 325 if (f_mkmtab(dfile, cflg, 0) == -1) {
326 326 exit(2);
327 327 }
328 328 #else /* !XPG4 */
329 329 /*
330 330 * Retain Solaris file behavior for -m before SUSv3,
331 331 * when the new -d and -M options are not specified.
332 332 * Use the -m file specified in place of the default
333 333 * /etc/magic file. Solaris file will
334 334 * now allow more than one magic file to be specified
335 335 * with multiple -m options, for consistency with
336 336 * other behavior.
337 337 *
338 338 * Put the magic table(s) specified by -m into
339 339 * the second magic table instead of the first
340 340 * (as indicated by the last argument to f_mkmtab()),
341 341 * since they replace the /etc/magic tests and
342 342 * must be executed alongside the default
343 343 * position-sensitive tests.
344 344 */
345 345
346 346 for (filep = mlist1; filep < mlist1p; filep++) {
347 347 if (f_mkmtab(*filep, cflg, 0) == -1) {
348 348 exit(2);
349 349 }
350 350 }
351 351 #endif /* XPG4 */
352 352 } else {
353 353 /*
354 354 * For any other combination of -d, -m, and -M,
355 355 * use the magic files in command-line order.
356 356 * Store the entries from the two separate lists of magic
357 357 * files, if any, into two separate magic file tables.
358 358 * mlist1: magic tests executed before default magic tests
359 359 * mlist2: default magic tests and after
360 360 */
361 361 for (filep = mlist1; filep && (filep < mlist1p); filep++) {
362 362 if (f_mkmtab(*filep, cflg, 1) == -1) {
363 363 exit(2);
364 364 }
365 365 }
366 366 for (filep = mlist2; filep && (filep < mlist2p); filep++) {
367 367 if (f_mkmtab(*filep, cflg, 0) == -1) {
368 368 exit(2);
369 369 }
370 370 }
371 371 }
372 372
373 373 /* Initialize the magic file variables; check both magic tables */
374 374 tmpmax = f_getmaxoffset(1);
375 375 maxmagicoffset = f_getmaxoffset(0);
376 376 if (maxmagicoffset < tmpmax) {
377 377 maxmagicoffset = tmpmax;
378 378 }
379 379 if (maxmagicoffset < (intmax_t)FBSZ)
380 380 maxmagicoffset = (intmax_t)FBSZ;
381 381 if ((magicbuf = malloc(maxmagicoffset)) == NULL) {
382 382 int err = errno;
383 383 (void) fprintf(stderr, gettext("%s: malloc failed: %s\n"),
384 384 File, strerror(err));
385 385 exit(2);
386 386 }
387 387
388 388 if (cflg) {
389 389 f_prtmtab();
390 390 if (ferror(stdout) != 0) {
391 391 (void) fprintf(stderr, gettext("%s: error writing to "
392 392 "stdout\n"), File);
393 393 exit(1);
394 394 }
395 395 if (fclose(stdout) != 0) {
396 396 int err = errno;
397 397 (void) fprintf(stderr, gettext("%s: fclose "
398 398 "failed: %s\n"), File, strerror(err));
399 399 exit(1);
400 400 }
401 401 exit(0);
402 402 }
403 403
404 404 for (; fflg || optind < argc; optind += !fflg) {
405 405 register int l;
406 406
407 407 if (fflg) {
408 408 if ((p = fgets(ap, pathlen, fl)) == NULL) {
409 409 fflg = 0;
410 410 optind--;
411 411 continue;
412 412 }
413 413 l = strlen(p);
414 414 if (l > 0)
415 415 p[l - 1] = '\0';
416 416 } else
417 417 p = argv[optind];
418 418
419 419 if (!bflg)
420 420 prf(p); /* print "file_name:<tab>" */
421 421
422 422 if (type(p))
423 423 tret = 1;
424 424 }
425 425 if (ap != NULL)
426 426 free(ap);
427 427 if (tret != 0)
428 428 exit(tret);
429 429
430 430 if (ferror(stdout) != 0) {
431 431 (void) fprintf(stderr, gettext("%s: error writing to "
432 432 "stdout\n"), File);
433 433 exit(1);
434 434 }
435 435 if (fclose(stdout) != 0) {
436 436 int err = errno;
437 437 (void) fprintf(stderr, gettext("%s: fclose failed: %s\n"),
438 438 File, strerror(err));
439 439 exit(1);
440 440 }
441 441 return (0);
442 442 }
443 443
444 444 static int
445 445 type(char *file)
446 446 {
447 447 int cc;
448 448 char buf[BUFSIZ];
449 449 int (*statf)() = hflg ? lstat64 : stat64;
450 450
451 451 i = 0; /* reset index to beginning of file */
452 452 ifd = -1;
453 453 if ((*statf)(file, &mbuf) < 0) {
454 454 if (statf == lstat64 || lstat64(file, &mbuf) < 0) {
455 455 int err = errno;
456 456 (void) printf(gettext("cannot open: %s\n"),
457 457 strerror(err));
458 458 return (0); /* POSIX.2 */
459 459 }
460 460 }
461 461 switch (mbuf.st_mode & S_IFMT) {
462 462 case S_IFREG:
463 463 if (iflg) {
464 464 (void) printf(gettext("regular file\n"));
465 465 return (0);
466 466 }
467 467 break;
468 468 case S_IFCHR:
469 469 (void) printf(gettext("character"));
470 470 goto spcl;
471 471
472 472 case S_IFDIR:
473 473 (void) printf(gettext("directory\n"));
474 474 return (0);
475 475
476 476 case S_IFIFO:
477 477 (void) printf(gettext("fifo\n"));
478 478 return (0);
479 479
480 480 case S_IFLNK:
481 481 if ((cc = readlink(file, buf, BUFSIZ)) < 0) {
482 482 int err = errno;
483 483 (void) printf(gettext("readlink error: %s\n"),
484 484 strerror(err));
485 485 return (1);
486 486 }
487 487 buf[cc] = '\0';
488 488 (void) printf(gettext("symbolic link to %s\n"), buf);
489 489 return (0);
490 490
491 491 case S_IFBLK:
492 492 (void) printf(gettext("block"));
493 493 /* major and minor, see sys/mkdev.h */
494 494 spcl:
495 495 (void) printf(gettext(" special (%d/%d)\n"),
496 496 major(mbuf.st_rdev), minor(mbuf.st_rdev));
497 497 return (0);
498 498
499 499 case S_IFSOCK:
500 500 (void) printf("socket\n");
501 501 /* FIXME, should open and try to getsockname. */
502 502 return (0);
503 503
504 504 case S_IFDOOR:
505 505 if (get_door_target(file, buf, sizeof (buf)) == 0)
506 506 (void) printf(gettext("door to %s\n"), buf);
507 507 else
508 508 (void) printf(gettext("door\n"));
509 509 return (0);
510 510
511 511 }
512 512
513 513 if (elf_version(EV_CURRENT) == EV_NONE) {
514 514 (void) printf(gettext("libelf is out of date\n"));
515 515 return (1);
516 516 }
517 517
518 518 ifd = open64(file, O_RDONLY);
519 519 if (ifd < 0) {
520 520 int err = errno;
521 521 (void) printf(gettext("cannot open: %s\n"), strerror(err));
522 522 return (0); /* POSIX.2 */
523 523 }
524 524
525 525 /* need another fd for elf, since we might want to read the file too */
526 526 elffd = open64(file, O_RDONLY);
527 527 if (elffd < 0) {
528 528 int err = errno;
529 529 (void) printf(gettext("cannot open: %s\n"), strerror(err));
530 530 (void) close(ifd);
531 531 ifd = -1;
532 532 return (0); /* POSIX.2 */
533 533 }
534 534 if ((fbsz = read(ifd, fbuf, FBSZ)) == -1) {
535 535 int err = errno;
536 536 (void) printf(gettext("cannot read: %s\n"), strerror(err));
537 537 (void) close(ifd);
538 538 ifd = -1;
539 539 return (0); /* POSIX.2 */
540 540 }
541 541 if (fbsz == 0) {
542 542 (void) printf(gettext("empty file\n"));
543 543 fd_cleanup();
544 544 return (0);
545 545 }
546 546
547 547 /*
548 548 * First try user-specified position-dependent magic tests, if any,
549 549 * which need to execute before the default tests.
550 550 */
551 551 if ((mread = pread(ifd, (void*)magicbuf, (size_t)maxmagicoffset,
552 552 (off_t)0)) == -1) {
553 553 int err = errno;
554 554 (void) printf(gettext("cannot read: %s\n"), strerror(err));
555 555 fd_cleanup();
556 556 return (0);
557 557 }
558 558
559 559 /*
560 560 * ChecK against Magic Table entries.
561 561 * Check first magic table for magic tests to be applied
562 562 * before default tests.
563 563 * If no default tests are to be applied, all magic tests
564 564 * should occur in this magic table.
565 565 */
566 566 switch (f_ckmtab(magicbuf, mread, 1)) {
567 567 case -1: /* Error */
568 568 exit(2);
569 569 break;
570 570 case 0: /* Not magic */
571 571 break;
572 572 default: /* Switch is magic index */
573 573 (void) putchar('\n');
574 574 fd_cleanup();
575 575 return (0);
576 576 /* NOTREACHED */
577 577 break;
578 578 }
579 579
580 580 if (dflg || !M_flg) {
581 581 /*
582 582 * default position-dependent tests,
583 583 * plus non-default magic tests, if any
584 584 */
585 585 switch (def_position_tests(file)) {
586 586 case -1: /* error */
587 587 fd_cleanup();
588 588 return (1);
589 589 case 1: /* matching type found */
590 590 fd_cleanup();
591 591 return (0);
592 592 /* NOTREACHED */
593 593 break;
594 594 case 0: /* no matching type found */
595 595 break;
596 596 }
597 597 /* default context-sensitive tests */
598 598 def_context_tests();
599 599 } else {
600 600 /* no more tests to apply; no match was found */
601 601 (void) printf(gettext("data\n"));
602 602 }
603 603 fd_cleanup();
604 604 return (0);
605 605 }
606 606
607 607 /*
608 608 * def_position_tests() - applies default position-sensitive tests,
609 609 * looking for values in specific positions in the file.
610 610 * These are followed by default (followed by possibly some
611 611 * non-default) magic file tests.
612 612 *
613 613 * All position-sensitive tests, default or otherwise, must
614 614 * be applied before context-sensitive tests, to avoid
615 615 * false context-sensitive matches.
616 616 *
617 617 * Returns -1 on error which should result in error (non-zero)
618 618 * exit status for the file utility.
619 619 * Returns 0 if no matching file type found.
620 620 * Returns 1 if matching file type found.
621 621 */
622 622
623 623 static int
624 624 def_position_tests(char *file)
625 625 {
626 626 if (sccs()) { /* look for "1hddddd" where d is a digit */
627 627 (void) printf("sccs \n");
628 628 return (1);
629 629 }
630 630 if (fbuf[0] == '#' && fbuf[1] == '!' && shellscript(fbuf+2, &mbuf))
631 631 return (1);
632 632
633 633 if (elf_check(file) == 0) {
634 634 (void) putchar('\n');
635 635 return (1);
636 636 /* LINTED: pointer cast may result in improper alignment */
637 637 } else if (*(int *)fbuf == CORE_MAGIC) {
638 638 /* LINTED: pointer cast may result in improper alignment */
639 639 struct core *corep = (struct core *)fbuf;
640 640
641 641 (void) printf("a.out core file");
642 642
643 643 if (*(corep->c_cmdname) != '\0')
644 644 (void) printf(" from '%s'", corep->c_cmdname);
645 645 (void) putchar('\n');
646 646 return (1);
647 647 }
648 648
649 649 /*
650 650 * Runtime linker (ld.so.1) configuration file.
651 651 */
652 652 if (is_rtld_config())
653 653 return (1);
654 654
655 655 /*
656 656 * ZIP files, JAR files, and Java executables
657 657 */
658 658 if (zipfile(fbuf, ifd))
659 659 return (1);
660 660
661 661 if (is_crash_dump(fbuf, ifd))
662 662 return (1);
663 663
664 664 /*
665 665 * ChecK against Magic Table entries.
666 666 * The magic entries checked here always start with default
667 667 * magic tests and may be followed by other, non-default magic
668 668 * tests. If no default tests are to be executed, all the
669 669 * magic tests should have been in the first magic table.
670 670 */
671 671 switch (f_ckmtab(magicbuf, mread, 0)) {
672 672 case -1: /* Error */
673 673 exit(2);
674 674 break;
675 675 case 0: /* Not magic */
676 676 return (0);
677 677 /* NOTREACHED */
678 678 break;
679 679 default: /* Switch is magic index */
680 680
681 681 /*
682 682 * f_ckmtab recognizes file type,
683 683 * check if it is PostScript.
684 684 * if not, check if elf or a.out
685 685 */
686 686 if (magicbuf[0] == '%' && magicbuf[1] == '!') {
687 687 (void) putchar('\n');
688 688 } else {
689 689
690 690 /*
691 691 * Check that the file is executable (dynamic
692 692 * objects must be executable to be exec'ed,
693 693 * shared objects need not be, but by convention
694 694 * should be executable).
695 695 *
696 696 * Note that we should already have processed
697 697 * the file if it was an ELF file.
698 698 */
699 699 ar_coff_or_aout(elffd);
700 700 (void) putchar('\n');
701 701 }
702 702 return (1);
703 703 /* NOTREACHED */
704 704 break;
705 705 }
706 706
707 707 return (0); /* file was not identified */
708 708 }
709 709
710 710 /*
711 711 * def_context_tests() - default context-sensitive tests.
712 712 * These are the last tests to be applied.
713 713 * If no match is found, prints out "data".
714 714 */
715 715
716 716 static void
717 717 def_context_tests(void)
718 718 {
719 719 int j;
720 720 int nl;
721 721 char ch;
722 722 int len;
723 723
724 724 if (ccom() == 0)
725 725 goto notc;
726 726 while (fbuf[i] == '#') {
727 727 j = i;
728 728 while (fbuf[i++] != '\n') {
729 729 if (i - j > 255) {
730 730 (void) printf(gettext("data\n"));
731 731 return;
732 732 }
733 733 if (i >= fbsz)
734 734 goto notc;
735 735 }
736 736 if (ccom() == 0)
737 737 goto notc;
738 738 }
739 739 check:
740 740 if (lookup(c) == 1) {
741 741 while ((ch = fbuf[i]) != ';' && ch != '{') {
742 742 if ((len = mblen(&fbuf[i], MB_CUR_MAX)) <= 0)
743 743 len = 1;
744 744 i += len;
745 745 if (i >= fbsz)
746 746 goto notc;
747 747 }
748 748 (void) printf(gettext("c program text"));
749 749 goto outa;
750 750 }
751 751 nl = 0;
752 752 while (fbuf[i] != '(') {
753 753 if (fbuf[i] <= 0)
754 754 goto notas;
755 755 if (fbuf[i] == ';') {
756 756 i++;
757 757 goto check;
758 758 }
759 759 if (fbuf[i++] == '\n')
760 760 if (nl++ > 6)
761 761 goto notc;
762 762 if (i >= fbsz)
763 763 goto notc;
764 764 }
765 765 while (fbuf[i] != ')') {
766 766 if (fbuf[i++] == '\n')
767 767 if (nl++ > 6)
768 768 goto notc;
769 769 if (i >= fbsz)
770 770 goto notc;
771 771 }
772 772 while (fbuf[i] != '{') {
773 773 if ((len = mblen(&fbuf[i], MB_CUR_MAX)) <= 0)
774 774 len = 1;
775 775 if (fbuf[i] == '\n')
776 776 if (nl++ > 6)
777 777 goto notc;
778 778 i += len;
779 779 if (i >= fbsz)
780 780 goto notc;
781 781 }
782 782 (void) printf(gettext("c program text"));
783 783 goto outa;
784 784 notc:
785 785 i = 0; /* reset to begining of file again */
786 786 while (fbuf[i] == 'c' || fbuf[i] == 'C'|| fbuf[i] == '!' ||
787 787 fbuf[i] == '*' || fbuf[i] == '\n') {
788 788 while (fbuf[i++] != '\n')
789 789 if (i >= fbsz)
790 790 goto notfort;
791 791 }
792 792 if (lookup(fort) == 1) {
793 793 (void) printf(gettext("fortran program text"));
794 794 goto outa;
795 795 }
796 796 notfort: /* looking for assembler program */
797 797 i = 0; /* reset to beginning of file again */
798 798 if (ccom() == 0) /* assembler programs may contain */
799 799 /* c-style comments */
800 800 goto notas;
801 801 if (ascom() == 0)
802 802 goto notas;
803 803 j = i - 1;
804 804 if (fbuf[i] == '.') {
805 805 i++;
806 806 if (lookup(as) == 1) {
807 807 (void) printf(gettext("assembler program text"));
808 808 goto outa;
809 809 } else if (j != -1 && fbuf[j] == '\n' && isalpha(fbuf[j + 2])) {
810 810 (void) printf(
811 811 gettext("[nt]roff, tbl, or eqn input text"));
812 812 goto outa;
813 813 }
814 814 }
815 815 while (lookup(asc) == 0) {
816 816 if (ccom() == 0)
817 817 goto notas;
818 818 if (ascom() == 0)
819 819 goto notas;
820 820 while (fbuf[i] != '\n' && fbuf[i++] != ':') {
821 821 if (i >= fbsz)
822 822 goto notas;
823 823 }
824 824 while (fbuf[i] == '\n' || fbuf[i] == ' ' || fbuf[i] == '\t')
825 825 if (i++ >= fbsz)
826 826 goto notas;
827 827 j = i - 1;
828 828 if (fbuf[i] == '.') {
829 829 i++;
830 830 if (lookup(as) == 1) {
831 831 (void) printf(
832 832 gettext("assembler program text"));
833 833 goto outa;
834 834 } else if (fbuf[j] == '\n' && isalpha(fbuf[j+2])) {
835 835 (void) printf(
836 836 gettext("[nt]roff, tbl, or eqn input "
837 837 "text"));
838 838 goto outa;
839 839 }
840 840 }
841 841 }
842 842 (void) printf(gettext("assembler program text"));
843 843 goto outa;
844 844 notas:
845 845 /* start modification for multibyte env */
|
↓ open down ↓ |
845 lines elided |
↑ open up ↑ |
846 846 IS_ascii = 1;
847 847 if (fbsz < FBSZ)
848 848 Max = fbsz;
849 849 else
850 850 Max = FBSZ - MB_LEN_MAX; /* prevent cut of wchar read */
851 851 /* end modification for multibyte env */
852 852
853 853 for (i = 0; i < Max; /* null */)
854 854 if (fbuf[i] & 0200) {
855 855 IS_ascii = 0;
856 - if (fbuf[0] == '\100' && fbuf[1] == '\357') {
856 + if ((fbuf[0] == '\100') &&
857 + ((uchar_t)fbuf[1] == (uchar_t)'\357')) {
857 858 (void) printf(gettext("troff output\n"));
858 859 return;
859 860 }
860 861 /* start modification for multibyte env */
861 862 if ((length = mbtowc(&wchar, &fbuf[i], MB_CUR_MAX))
862 863 <= 0 || !iswprint(wchar)) {
863 864 (void) printf(gettext("data\n"));
864 865 return;
865 866 }
866 867 i += length;
867 868 }
868 869 else
869 870 i++;
870 871 i = fbsz;
871 872 /* end modification for multibyte env */
872 873 if (mbuf.st_mode&(S_IXUSR|S_IXGRP|S_IXOTH))
873 874 (void) printf(gettext("commands text"));
874 875 else if (troffint(fbuf, fbsz))
875 876 (void) printf(gettext("troff intermediate output text"));
876 877 else if (english(fbuf, fbsz))
877 878 (void) printf(gettext("English text"));
878 879 else if (IS_ascii)
879 880 (void) printf(gettext("ascii text"));
880 881 else
881 882 (void) printf(gettext("text")); /* for multibyte env */
882 883 outa:
883 884 /*
884 885 * This code is to make sure that no MB char is cut in half
885 886 * while still being used.
886 887 */
887 888 fbsz = (fbsz < FBSZ ? fbsz : fbsz - MB_CUR_MAX + 1);
888 889 while (i < fbsz) {
889 890 if (isascii(fbuf[i])) {
890 891 i++;
891 892 continue;
892 893 } else {
893 894 if ((length = mbtowc(&wchar, &fbuf[i], MB_CUR_MAX))
894 895 <= 0 || !iswprint(wchar)) {
895 896 (void) printf(gettext(" with garbage\n"));
896 897 return;
897 898 }
898 899 i = i + length;
899 900 }
900 901 }
901 902 (void) printf("\n");
902 903 }
903 904
904 905 static int
905 906 troffint(char *bp, int n)
906 907 {
907 908 int k;
908 909
909 910 i = 0;
910 911 for (k = 0; k < 6; k++) {
911 912 if (lookup(troff) == 0)
912 913 return (0);
913 914 if (lookup(troff) == 0)
914 915 return (0);
915 916 while (i < n && bp[i] != '\n')
916 917 i++;
917 918 if (i++ >= n)
918 919 return (0);
919 920 }
920 921 return (1);
921 922 }
922 923
923 924 static void
924 925 ar_coff_or_aout(int elffd)
925 926 {
926 927 Elf *elf;
927 928
928 929 /*
929 930 * Get the files elf descriptor and process it as an elf or
930 931 * a.out (4.x) file.
931 932 */
932 933
933 934 elf = elf_begin(elffd, ELF_C_READ, (Elf *)0);
934 935 switch (elf_kind(elf)) {
935 936 case ELF_K_AR :
936 937 (void) printf(gettext(", not a dynamic executable "
937 938 "or shared object"));
938 939 break;
939 940 case ELF_K_COFF:
940 941 (void) printf(gettext(", unsupported or unknown "
941 942 "file type"));
942 943 break;
943 944 default:
944 945 /*
945 946 * This is either an unknown file or an aout format
946 947 * At this time, we don't print dynamic/stripped
947 948 * info. on a.out or non-Elf binaries.
948 949 */
949 950 break;
950 951 }
951 952 (void) elf_end(elf);
952 953 }
953 954
954 955
955 956 static void
956 957 print_elf_type(Elf_Info EI)
957 958 {
958 959 switch (EI.type) {
959 960 case ET_NONE:
960 961 (void) printf(" %s", gettext("unknown type"));
961 962 break;
962 963 case ET_REL:
963 964 (void) printf(" %s", gettext("relocatable"));
964 965 break;
965 966 case ET_EXEC:
966 967 (void) printf(" %s", gettext("executable"));
967 968 break;
968 969 case ET_DYN:
969 970 (void) printf(" %s", gettext("dynamic lib"));
970 971 break;
971 972 default:
972 973 break;
973 974 }
974 975 }
975 976
976 977 static void
977 978 print_elf_machine(int machine)
978 979 {
979 980 /*
980 981 * This table must be kept in sync with the EM_ constants
981 982 * in /usr/include/sys/elf.h.
982 983 */
983 984 static const char *mach_str[EM_NUM] = {
984 985 [EM_NONE] = "unknown machine",
985 986 [EM_M32] = "WE32100",
986 987 [EM_SPARC] = "SPARC",
987 988 [EM_386] = "80386",
988 989 [EM_68K] = "M68000",
989 990 [EM_88K] = "M88000",
990 991 [EM_486] = "80486",
991 992 [EM_860] = "i860",
992 993 [EM_MIPS] = "MIPS RS3000 Big-Endian",
993 994 [EM_S370] = "S/370",
994 995 [EM_MIPS_RS3_LE] = "MIPS RS3000 Little-Endian",
995 996 [EM_RS6000] = "MIPS RS6000",
996 997 [EM_PA_RISC] = "PA-RISC",
997 998 [EM_nCUBE] = "nCUBE",
998 999 [EM_VPP500] = "VPP500",
999 1000 [EM_SPARC32PLUS] = "SPARC32PLUS",
1000 1001 [EM_960] = "i960",
1001 1002 [EM_PPC] = "PowerPC",
1002 1003 [EM_PPC64] = "PowerPC64",
1003 1004 [EM_S390] = "S/390",
1004 1005 [EM_V800] = "V800",
1005 1006 [EM_FR20] = "FR20",
1006 1007 [EM_RH32] = "RH32",
1007 1008 [EM_RCE] = "RCE",
1008 1009 [EM_ARM] = "ARM",
1009 1010 [EM_ALPHA] = "Alpha",
1010 1011 [EM_SH] = "S/390",
1011 1012 [EM_SPARCV9] = "SPARCV9",
1012 1013 [EM_TRICORE] = "Tricore",
1013 1014 [EM_ARC] = "ARC",
1014 1015 [EM_H8_300] = "H8/300",
1015 1016 [EM_H8_300H] = "H8/300H",
1016 1017 [EM_H8S] = "H8S",
1017 1018 [EM_H8_500] = "H8/500",
1018 1019 [EM_IA_64] = "IA64",
1019 1020 [EM_MIPS_X] = "MIPS-X",
1020 1021 [EM_COLDFIRE] = "Coldfire",
1021 1022 [EM_68HC12] = "M68HC12",
1022 1023 [EM_MMA] = "MMA",
1023 1024 [EM_PCP] = "PCP",
1024 1025 [EM_NCPU] = "nCPU",
1025 1026 [EM_NDR1] = "NDR1",
1026 1027 [EM_STARCORE] = "Starcore",
1027 1028 [EM_ME16] = "ME16",
1028 1029 [EM_ST100] = "ST100",
1029 1030 [EM_TINYJ] = "TINYJ",
1030 1031 [EM_AMD64] = "AMD64",
1031 1032 [EM_PDSP] = "PDSP",
1032 1033 [EM_FX66] = "FX66",
1033 1034 [EM_ST9PLUS] = "ST9 PLUS",
1034 1035 [EM_ST7] = "ST7",
1035 1036 [EM_68HC16] = "68HC16",
1036 1037 [EM_68HC11] = "68HC11",
1037 1038 [EM_68HC08] = "68H08",
1038 1039 [EM_68HC05] = "68HC05",
1039 1040 [EM_SVX] = "SVX",
1040 1041 [EM_ST19] = "ST19",
1041 1042 [EM_VAX] = "VAX",
1042 1043 [EM_CRIS] = "CRIS",
1043 1044 [EM_JAVELIN] = "Javelin",
1044 1045 [EM_FIREPATH] = "Firepath",
1045 1046 [EM_ZSP] = "ZSP",
1046 1047 [EM_MMIX] = "MMIX",
1047 1048 [EM_HUANY] = "HUANY",
1048 1049 [EM_PRISM] = "Prism",
1049 1050 [EM_AVR] = "AVR",
1050 1051 [EM_FR30] = "FR30",
1051 1052 [EM_D10V] = "D10V",
1052 1053 [EM_D30V] = "D30V",
1053 1054 [EM_V850] = "V850",
1054 1055 [EM_M32R] = "M32R",
1055 1056 [EM_MN10300] = "MN10300",
1056 1057 [EM_MN10200] = "MN10200",
1057 1058 [EM_PJ] = "picoJava",
1058 1059 [EM_OPENRISC] = "OpenRISC",
1059 1060 [EM_ARC_A5] = "Tangent-A5",
1060 1061 [EM_XTENSA] = "Xtensa",
1061 1062
1062 1063 [EM_VIDEOCORE] = "Videocore",
1063 1064 [EM_TMM_GPP] = "TMM_GPP",
1064 1065 [EM_NS32K] = "NS32K",
1065 1066 [EM_TPC] = "TPC",
1066 1067 [EM_SNP1K] = "SNP1K",
1067 1068 [EM_ST200] = "ST200",
1068 1069 [EM_IP2K] = "IP2K",
1069 1070 [EM_MAX] = "MAX",
1070 1071 [EM_CR] = "CompactRISC",
1071 1072 [EM_F2MC16] = "F2MC16",
1072 1073 [EM_MSP430] = "MSP430",
1073 1074 [EM_BLACKFIN] = "Blackfin",
1074 1075 [EM_SE_C33] = "S1C33",
1075 1076 [EM_SEP] = "SEP",
1076 1077 [EM_ARCA] = "Arca",
1077 1078 [EM_UNICORE] = "Unicore",
1078 1079 [EM_EXCESS] = "eXcess",
1079 1080 [EM_DXP] = "DXP",
1080 1081 [EM_ALTERA_NIOS2] = "Nios 2",
1081 1082 [EM_CRX] = "CompactRISC CRX",
1082 1083 [EM_XGATE] = "XGATE",
1083 1084 [EM_C166] = "C16x/XC16x",
1084 1085 [EM_M16C] = "M16C",
1085 1086 [EM_DSPIC30F] = "dsPIC30F",
1086 1087 [EM_CE] = "CE RISC",
1087 1088 [EM_M32C] = "M32C",
1088 1089 [EM_TSK3000] = "TSK3000",
1089 1090 [EM_RS08] = "RS08",
1090 1091 [EM_SHARC] = "SHARC",
1091 1092 [EM_ECOG2] = "eCOG2",
1092 1093 [EM_SCORE7] = "SCORE7",
1093 1094 [EM_DSP24] = "DSP24",
1094 1095 [EM_VIDEOCORE3] = "Videocore III",
1095 1096 [EM_LATTICEMICO32] = "LATTICEMICO32",
1096 1097 [EM_SE_C17] = "SE_C17",
1097 1098 [EM_TI_C6000] = "TMS320C6000",
1098 1099 [EM_TI_C2000] = "TMS320C2000",
1099 1100 [EM_TI_C5500] = "TMS320C55x",
1100 1101 [EM_TI_ARP32] = "ASRP32",
1101 1102 [EM_TI_PRU] = "TI_PRU",
1102 1103 [EM_MMDSP_PLUS] = "MMDSP_PLUS",
1103 1104 [EM_CYPRESS_M8C] = "M8C",
1104 1105 [EM_R32C] = "R32C",
1105 1106 [EM_TRIMEDIA] = "TriMedia",
1106 1107 [EM_QDSP6] = "QDSP6",
1107 1108 [EM_8051] = "8051",
1108 1109 [EM_STXP7X] = "STxP7x",
1109 1110 [EM_NDS32] = "NDS32",
1110 1111 [EM_ECOG1] = "eCOG1X",
1111 1112 [EM_MAXQ30] = "MAXQ30",
1112 1113 [EM_XIMO16] = "XIMO16",
1113 1114 [EM_MANIK] = "M2000",
1114 1115 [EM_CRAYNV2] = "CRAYNV2",
1115 1116 [EM_RX] = "RX",
1116 1117 [EM_METAG] = "METAG",
1117 1118 [EM_MCST_ELBRUS] = "Elbrus",
1118 1119 [EM_ECOG16] = "eCOG16",
1119 1120 [EM_CR16] = "CR16",
1120 1121 [EM_ETPU] = "ETPU",
1121 1122 [EM_SLE9X] = "SLE9X",
1122 1123 [EM_L10M] = "L10M",
1123 1124 [EM_K10M] = "K10M",
1124 1125
1125 1126 [EM_AARCH64] = "aarch64",
1126 1127
1127 1128 [EM_AVR32] = "AVR32",
1128 1129 [EM_STM8] = "STM8",
1129 1130 [EM_TILE64] = "TILE64",
1130 1131 [EM_TILEPRO] = "TILEPRO",
1131 1132 [EM_MICROBLAZE] = "MicroBlaze",
1132 1133 [EM_CUDA] = "CUDA",
1133 1134 [EM_TILEGX] = "TILE-Gx",
1134 1135 [EM_CLOUDSHIELD] = "CloudShield",
1135 1136 [EM_COREA_1ST] = "CORE-A 1st",
1136 1137 [EM_COREA_2ND] = "CORE-A 2nd",
1137 1138 [EM_ARC_COMPACT2] = "ARCompact V2",
1138 1139 [EM_OPEN8] = "Open8",
1139 1140 [EM_RL78] = "RL78",
1140 1141 [EM_VIDEOCORE5] = "VideoCore V",
1141 1142 [EM_78KOR] = "78KOR",
1142 1143 [EM_56800EX] = "56800EX",
1143 1144 [EM_BA1] = "BA1",
1144 1145 [EM_BA2] = "BA2",
1145 1146 [EM_XCORE] = "xCORE",
1146 1147 [EM_MCHP_PIC] = "MCHP_PIC",
1147 1148 [EM_KM32] = "KM32",
1148 1149 [EM_KMX32] = "KMX32",
1149 1150 [EM_KMX16] = "KMX16",
1150 1151 [EM_KMX8] = "KMX8",
1151 1152 [EM_KVARC] = "KVARC",
1152 1153 [EM_CDP] = "CDP",
1153 1154 [EM_COGE] = "COGE",
1154 1155 [EM_COOL] = "CoolEngine",
1155 1156 [EM_NORC] = "NORC",
1156 1157 [EM_CSR_KALIMBA] = "Kalimba",
1157 1158 [EM_Z80] = "Zilog Z80",
1158 1159 [EM_VISIUM] = "VISIUMcore",
1159 1160 [EM_FT32] = "FT32",
1160 1161 [EM_MOXIE] = "Moxie",
1161 1162 [EM_AMDGPU] = "AMD GPU",
1162 1163 [EM_RISCV] = "RISC-V"
1163 1164 };
1164 1165 /* If new machine is added, refuse to compile until we're updated */
1165 1166 #if EM_NUM != 244
1166 1167 #error "Number of known ELF machine constants has changed"
1167 1168 #endif
1168 1169
1169 1170 const char *str;
1170 1171
1171 1172 if ((machine < EM_NONE) || (machine >= EM_NUM))
1172 1173 machine = EM_NONE;
1173 1174
1174 1175 str = mach_str[machine];
1175 1176 if (str)
1176 1177 (void) printf(" %s", str);
1177 1178 }
1178 1179
1179 1180 static void
1180 1181 print_elf_datatype(int datatype)
1181 1182 {
1182 1183 switch (datatype) {
1183 1184 case ELFDATA2LSB:
1184 1185 (void) printf(" LSB");
1185 1186 break;
1186 1187 case ELFDATA2MSB:
1187 1188 (void) printf(" MSB");
1188 1189 break;
1189 1190 default:
1190 1191 break;
1191 1192 }
1192 1193 }
1193 1194
1194 1195 static void
1195 1196 print_elf_class(int class)
1196 1197 {
1197 1198 switch (class) {
1198 1199 case ELFCLASS32:
1199 1200 (void) printf(" %s", gettext("32-bit"));
1200 1201 break;
1201 1202 case ELFCLASS64:
1202 1203 (void) printf(" %s", gettext("64-bit"));
1203 1204 break;
1204 1205 default:
1205 1206 break;
1206 1207 }
1207 1208 }
1208 1209
1209 1210 static void
1210 1211 print_elf_flags(Elf_Info EI)
1211 1212 {
1212 1213 unsigned int flags;
1213 1214
1214 1215 flags = EI.flags;
1215 1216 switch (EI.machine) {
1216 1217 case EM_SPARCV9:
1217 1218 if (flags & EF_SPARC_EXT_MASK) {
1218 1219 if (flags & EF_SPARC_SUN_US3) {
1219 1220 (void) printf("%s", gettext(
1220 1221 ", UltraSPARC3 Extensions Required"));
1221 1222 } else if (flags & EF_SPARC_SUN_US1) {
1222 1223 (void) printf("%s", gettext(
1223 1224 ", UltraSPARC1 Extensions Required"));
1224 1225 }
1225 1226 if (flags & EF_SPARC_HAL_R1)
1226 1227 (void) printf("%s", gettext(
1227 1228 ", HaL R1 Extensions Required"));
1228 1229 }
1229 1230 break;
1230 1231 case EM_SPARC32PLUS:
1231 1232 if (flags & EF_SPARC_32PLUS)
1232 1233 (void) printf("%s", gettext(", V8+ Required"));
1233 1234 if (flags & EF_SPARC_SUN_US3) {
1234 1235 (void) printf("%s",
1235 1236 gettext(", UltraSPARC3 Extensions Required"));
1236 1237 } else if (flags & EF_SPARC_SUN_US1) {
1237 1238 (void) printf("%s",
1238 1239 gettext(", UltraSPARC1 Extensions Required"));
1239 1240 }
1240 1241 if (flags & EF_SPARC_HAL_R1)
1241 1242 (void) printf("%s",
1242 1243 gettext(", HaL R1 Extensions Required"));
1243 1244 break;
1244 1245 default:
1245 1246 break;
1246 1247 }
1247 1248 }
1248 1249
1249 1250 /*
1250 1251 * check_ident: checks the ident field of the presumeably
1251 1252 * elf file. If check fails, this is not an
1252 1253 * elf file.
1253 1254 */
1254 1255 static int
1255 1256 check_ident(unsigned char *ident, int fd)
1256 1257 {
1257 1258 int class;
1258 1259 if (pread64(fd, ident, EI_NIDENT, 0) != EI_NIDENT)
1259 1260 return (ELF_READ_FAIL);
1260 1261 class = ident[EI_CLASS];
1261 1262 if (class != ELFCLASS32 && class != ELFCLASS64)
1262 1263 return (ELF_READ_FAIL);
1263 1264 if (ident[EI_MAG0] != ELFMAG0 || ident[EI_MAG1] != ELFMAG1 ||
1264 1265 ident[EI_MAG2] != ELFMAG2 || ident[EI_MAG3] != ELFMAG3)
1265 1266 return (ELF_READ_FAIL);
1266 1267
1267 1268 return (ELF_READ_OKAY);
1268 1269 }
1269 1270
1270 1271 static int
1271 1272 elf_check(char *file)
1272 1273 {
1273 1274 Elf_Info EInfo;
1274 1275 int class, version, format;
1275 1276 unsigned char ident[EI_NIDENT];
1276 1277
1277 1278 (void) memset(&EInfo, 0, sizeof (Elf_Info));
1278 1279 EInfo.file = file;
1279 1280
1280 1281 /*
1281 1282 * Verify information in file indentifier.
1282 1283 * Return quietly if not elf; Different type of file.
1283 1284 */
1284 1285 if (check_ident(ident, elffd) == ELF_READ_FAIL)
1285 1286 return (1);
1286 1287
1287 1288 /*
1288 1289 * Read the elf headers for processing and get the
1289 1290 * get the needed information in Elf_Info struct.
1290 1291 */
1291 1292 class = ident[EI_CLASS];
1292 1293 if (class == ELFCLASS32) {
1293 1294 if (elf_read32(elffd, &EInfo) == ELF_READ_FAIL) {
1294 1295 (void) fprintf(stderr, gettext("%s: %s: can't "
1295 1296 "read ELF header\n"), File, file);
1296 1297 return (1);
1297 1298 }
1298 1299 } else if (class == ELFCLASS64) {
1299 1300 if (elf_read64(elffd, &EInfo) == ELF_READ_FAIL) {
1300 1301 (void) fprintf(stderr, gettext("%s: %s: can't "
1301 1302 "read ELF header\n"), File, file);
1302 1303 return (1);
1303 1304 }
1304 1305 } else {
1305 1306 /* something wrong */
1306 1307 return (1);
1307 1308 }
1308 1309
1309 1310 /* version not in ident then 1 */
1310 1311 version = ident[EI_VERSION] ? ident[EI_VERSION] : 1;
1311 1312
1312 1313 format = ident[EI_DATA];
1313 1314 (void) printf("%s", gettext("ELF"));
1314 1315 print_elf_class(class);
1315 1316 print_elf_datatype(format);
1316 1317 print_elf_type(EInfo);
1317 1318
1318 1319 if (EInfo.core_type != EC_NOTCORE) {
1319 1320 /* Print what kind of core is this */
1320 1321 if (EInfo.core_type == EC_OLDCORE)
1321 1322 (void) printf(" %s", gettext("pre-2.6 core file"));
1322 1323 else
1323 1324 (void) printf(" %s", gettext("core file"));
1324 1325 }
1325 1326
1326 1327 /* Print machine info */
1327 1328 print_elf_machine(EInfo.machine);
1328 1329
1329 1330 /* Print Version */
1330 1331 if (version == 1)
1331 1332 (void) printf(" %s %d", gettext("Version"), version);
1332 1333
1333 1334 if (EInfo.kmod) {
1334 1335 (void) printf(", %s", gettext("kernel module"));
1335 1336 }
1336 1337
1337 1338 /* Print Flags */
1338 1339 print_elf_flags(EInfo);
1339 1340
1340 1341 /* Last bit, if it is a core */
1341 1342 if (EInfo.core_type != EC_NOTCORE) {
1342 1343 /* Print the program name that dumped this core */
1343 1344 (void) printf(gettext(", from '%s'"), EInfo.fname);
1344 1345 return (0);
1345 1346 }
1346 1347
1347 1348 /* Print Capabilities */
1348 1349 if (EInfo.cap_str[0] != '\0')
1349 1350 (void) printf(" [%s]", EInfo.cap_str);
1350 1351
1351 1352 if ((EInfo.type != ET_EXEC) && (EInfo.type != ET_DYN))
1352 1353 return (0);
1353 1354
1354 1355 /* Print if it is dynamically linked */
1355 1356 if (EInfo.dynamic)
1356 1357 (void) printf(gettext(", dynamically linked"));
1357 1358 else
1358 1359 (void) printf(gettext(", statically linked"));
1359 1360
1360 1361 /* Printf it it is stripped */
1361 1362 if (EInfo.stripped & E_SYMTAB) {
1362 1363 (void) printf(gettext(", not stripped"));
1363 1364 if (!(EInfo.stripped & E_DBGINF)) {
1364 1365 (void) printf(gettext(
1365 1366 ", no debugging information available"));
1366 1367 }
1367 1368 } else {
1368 1369 (void) printf(gettext(", stripped"));
1369 1370 }
1370 1371
1371 1372 return (0);
1372 1373 }
1373 1374
1374 1375 /*
1375 1376 * is_rtld_config - If file is a runtime linker config file, prints
1376 1377 * the description and returns True (1). Otherwise, silently returns
1377 1378 * False (0).
1378 1379 */
1379 1380 int
1380 1381 is_rtld_config(void)
1381 1382 {
1382 1383 Rtc_id *id;
1383 1384
1384 1385 if ((fbsz >= sizeof (*id)) && RTC_ID_TEST(fbuf)) {
1385 1386 (void) printf(gettext("Runtime Linking Configuration"));
1386 1387 id = (Rtc_id *) fbuf;
1387 1388 print_elf_class(id->id_class);
1388 1389 print_elf_datatype(id->id_data);
1389 1390 print_elf_machine(id->id_machine);
1390 1391 (void) printf("\n");
1391 1392 return (1);
1392 1393 }
1393 1394
1394 1395 return (0);
1395 1396 }
1396 1397
1397 1398 /*
1398 1399 * lookup -
1399 1400 * Attempts to match one of the strings from a list, 'tab',
1400 1401 * with what is in the file, starting at the current index position 'i'.
1401 1402 * Looks past any initial whitespace and expects whitespace or other
1402 1403 * delimiting characters to follow the matched string.
1403 1404 * A match identifies the file as being 'assembler', 'fortran', 'c', etc.
1404 1405 * Returns 1 for a successful match, 0 otherwise.
1405 1406 */
1406 1407 static int
1407 1408 lookup(char **tab)
1408 1409 {
1409 1410 register char r;
1410 1411 register int k, j, l;
1411 1412
1412 1413 while (fbuf[i] == ' ' || fbuf[i] == '\t' || fbuf[i] == '\n')
1413 1414 i++;
1414 1415 for (j = 0; tab[j] != 0; j++) {
1415 1416 l = 0;
1416 1417 for (k = i; ((r = tab[j][l++]) == fbuf[k] && r != '\0'); k++)
1417 1418 ;
1418 1419 if (r == '\0')
1419 1420 if (fbuf[k] == ' ' || fbuf[k] == '\n' ||
1420 1421 fbuf[k] == '\t' || fbuf[k] == '{' ||
1421 1422 fbuf[k] == '/') {
1422 1423 i = k;
1423 1424 return (1);
1424 1425 }
1425 1426 }
1426 1427 return (0);
1427 1428 }
1428 1429
1429 1430 /*
1430 1431 * ccom -
1431 1432 * Increments the current index 'i' into the file buffer 'fbuf' past any
1432 1433 * whitespace lines and C-style comments found, starting at the current
1433 1434 * position of 'i'. Returns 1 as long as we don't increment i past the
1434 1435 * size of fbuf (fbsz). Otherwise, returns 0.
1435 1436 */
1436 1437
1437 1438 static int
1438 1439 ccom(void)
1439 1440 {
1440 1441 register char cc;
1441 1442 int len;
1442 1443
1443 1444 while ((cc = fbuf[i]) == ' ' || cc == '\t' || cc == '\n')
1444 1445 if (i++ >= fbsz)
1445 1446 return (0);
1446 1447 if (fbuf[i] == '/' && fbuf[i+1] == '*') {
1447 1448 i += 2;
1448 1449 while (fbuf[i] != '*' || fbuf[i+1] != '/') {
1449 1450 if (fbuf[i] == '\\')
1450 1451 i++;
1451 1452 if ((len = mblen(&fbuf[i], MB_CUR_MAX)) <= 0)
1452 1453 len = 1;
1453 1454 i += len;
1454 1455 if (i >= fbsz)
1455 1456 return (0);
1456 1457 }
1457 1458 if ((i += 2) >= fbsz)
1458 1459 return (0);
1459 1460 }
1460 1461 if (fbuf[i] == '\n')
1461 1462 if (ccom() == 0)
1462 1463 return (0);
1463 1464 return (1);
1464 1465 }
1465 1466
1466 1467 /*
1467 1468 * ascom -
1468 1469 * Increments the current index 'i' into the file buffer 'fbuf' past
1469 1470 * consecutive assembler program comment lines starting with ASCOMCHAR,
1470 1471 * starting at the current position of 'i'.
1471 1472 * Returns 1 as long as we don't increment i past the
1472 1473 * size of fbuf (fbsz). Otherwise returns 0.
1473 1474 */
1474 1475
1475 1476 static int
1476 1477 ascom(void)
1477 1478 {
1478 1479 while (fbuf[i] == ASCOMCHAR) {
1479 1480 i++;
1480 1481 while (fbuf[i++] != '\n')
1481 1482 if (i >= fbsz)
1482 1483 return (0);
1483 1484 while (fbuf[i] == '\n')
1484 1485 if (i++ >= fbsz)
1485 1486 return (0);
1486 1487 }
1487 1488 return (1);
1488 1489 }
1489 1490
1490 1491 /* look for "1hddddd" where d is a digit */
1491 1492 static int
1492 1493 sccs(void)
1493 1494 {
1494 1495 register int j;
1495 1496
1496 1497 if (fbuf[0] == 1 && fbuf[1] == 'h') {
1497 1498 for (j = 2; j <= 6; j++) {
1498 1499 if (isdigit(fbuf[j]))
1499 1500 continue;
1500 1501 else
1501 1502 return (0);
1502 1503 }
1503 1504 } else {
1504 1505 return (0);
1505 1506 }
1506 1507 return (1);
1507 1508 }
1508 1509
1509 1510 static int
1510 1511 english(char *bp, int n)
1511 1512 {
1512 1513 #define NASC 128 /* number of ascii char ?? */
1513 1514 register int j, vow, freq, rare, len;
1514 1515 register int badpun = 0, punct = 0;
1515 1516 int ct[NASC];
1516 1517
1517 1518 if (n < 50)
1518 1519 return (0); /* no point in statistics on squibs */
1519 1520 for (j = 0; j < NASC; j++)
1520 1521 ct[j] = 0;
1521 1522 for (j = 0; j < n; j += len) {
1522 1523 if ((unsigned char)bp[j] < NASC)
1523 1524 ct[bp[j]|040]++;
1524 1525 switch (bp[j]) {
1525 1526 case '.':
1526 1527 case ',':
1527 1528 case ')':
1528 1529 case '%':
1529 1530 case ';':
1530 1531 case ':':
1531 1532 case '?':
1532 1533 punct++;
1533 1534 if (j < n-1 && bp[j+1] != ' ' && bp[j+1] != '\n')
1534 1535 badpun++;
1535 1536 }
1536 1537 if ((len = mblen(&bp[j], MB_CUR_MAX)) <= 0)
1537 1538 len = 1;
1538 1539 }
1539 1540 if (badpun*5 > punct)
1540 1541 return (0);
1541 1542 vow = ct['a'] + ct['e'] + ct['i'] + ct['o'] + ct['u'];
1542 1543 freq = ct['e'] + ct['t'] + ct['a'] + ct['i'] + ct['o'] + ct['n'];
1543 1544 rare = ct['v'] + ct['j'] + ct['k'] + ct['q'] + ct['x'] + ct['z'];
1544 1545 if (2*ct[';'] > ct['e'])
1545 1546 return (0);
1546 1547 if ((ct['>'] + ct['<'] + ct['/']) > ct['e'])
1547 1548 return (0); /* shell file test */
1548 1549 return (vow * 5 >= n - ct[' '] && freq >= 10 * rare);
1549 1550 }
1550 1551
1551 1552
1552 1553 static int
1553 1554 shellscript(char buf[], struct stat64 *sb)
1554 1555 {
1555 1556 char *tp, *cp, *xp, *up, *gp;
1556 1557
1557 1558 cp = strchr(buf, '\n');
1558 1559 if (cp == NULL || cp - fbuf > fbsz)
1559 1560 return (0);
1560 1561 for (tp = buf; tp != cp && isspace((unsigned char)*tp); tp++)
1561 1562 if (!isascii(*tp))
1562 1563 return (0);
1563 1564 for (xp = tp; tp != cp && !isspace((unsigned char)*tp); tp++)
1564 1565 if (!isascii(*tp))
1565 1566 return (0);
1566 1567 if (tp == xp)
1567 1568 return (0);
1568 1569 if (sb->st_mode & S_ISUID)
1569 1570 up = gettext("set-uid ");
1570 1571 else
1571 1572 up = "";
1572 1573
1573 1574 if (sb->st_mode & S_ISGID)
1574 1575 gp = gettext("set-gid ");
1575 1576 else
1576 1577 gp = "";
1577 1578
1578 1579 if (strncmp(xp, "/bin/sh", tp - xp) == 0)
1579 1580 xp = gettext("shell");
1580 1581 else if (strncmp(xp, "/bin/csh", tp - xp) == 0)
1581 1582 xp = gettext("c-shell");
1582 1583 else if (strncmp(xp, "/usr/sbin/dtrace", tp - xp) == 0)
1583 1584 xp = gettext("DTrace");
1584 1585 else
1585 1586 *tp = '\0';
1586 1587 /*
1587 1588 * TRANSLATION_NOTE
1588 1589 * This message is printed by file command for shell scripts.
1589 1590 * The first %s is for the translation for "set-uid " (if the script
1590 1591 * has the set-uid bit set), or is for an empty string (if the
1591 1592 * script does not have the set-uid bit set).
1592 1593 * Similarly, the second %s is for the translation for "set-gid ",
1593 1594 * or is for an empty string.
1594 1595 * The third %s is for the translation for either: "shell", "c-shell",
1595 1596 * or "DTrace", or is for the pathname of the program the script
1596 1597 * executes.
1597 1598 */
1598 1599 (void) printf(gettext("%s%sexecutable %s script\n"), up, gp, xp);
1599 1600 return (1);
1600 1601 }
1601 1602
1602 1603 static int
1603 1604 get_door_target(char *file, char *buf, size_t bufsize)
1604 1605 {
1605 1606 int fd;
1606 1607 door_info_t di;
1607 1608 psinfo_t psinfo;
1608 1609
1609 1610 if ((fd = open64(file, O_RDONLY)) < 0 ||
1610 1611 door_info(fd, &di) != 0) {
1611 1612 if (fd >= 0)
1612 1613 (void) close(fd);
1613 1614 return (-1);
1614 1615 }
1615 1616 (void) close(fd);
1616 1617
1617 1618 (void) sprintf(buf, "/proc/%ld/psinfo", di.di_target);
1618 1619 if ((fd = open64(buf, O_RDONLY)) < 0 ||
1619 1620 read(fd, &psinfo, sizeof (psinfo)) != sizeof (psinfo)) {
1620 1621 if (fd >= 0)
1621 1622 (void) close(fd);
1622 1623 return (-1);
1623 1624 }
1624 1625 (void) close(fd);
1625 1626
1626 1627 (void) snprintf(buf, bufsize, "%s[%ld]", psinfo.pr_fname, di.di_target);
1627 1628 return (0);
1628 1629 }
1629 1630
1630 1631 /*
1631 1632 * ZIP file header information
1632 1633 */
1633 1634 #define SIGSIZ 4
1634 1635 #define LOCSIG "PK\003\004"
1635 1636 #define LOCHDRSIZ 30
1636 1637
1637 1638 #define CH(b, n) (((unsigned char *)(b))[n])
1638 1639 #define SH(b, n) (CH(b, n) | (CH(b, n+1) << 8))
1639 1640 #define LG(b, n) (SH(b, n) | (SH(b, n+2) << 16))
1640 1641
1641 1642 #define LOCNAM(b) (SH(b, 26)) /* filename size */
1642 1643 #define LOCEXT(b) (SH(b, 28)) /* extra field size */
1643 1644
1644 1645 #define XFHSIZ 4 /* header id, data size */
1645 1646 #define XFHID(b) (SH(b, 0)) /* extract field header id */
1646 1647 #define XFDATASIZ(b) (SH(b, 2)) /* extract field data size */
1647 1648 #define XFJAVASIG 0xcafe /* java executables */
1648 1649
1649 1650 static int
1650 1651 zipfile(char *fbuf, int fd)
1651 1652 {
1652 1653 off_t xoff, xoff_end;
1653 1654
1654 1655 if (strncmp(fbuf, LOCSIG, SIGSIZ) != 0)
1655 1656 return (0);
1656 1657
1657 1658 xoff = LOCHDRSIZ + LOCNAM(fbuf);
1658 1659 xoff_end = xoff + LOCEXT(fbuf);
1659 1660
1660 1661 while (xoff < xoff_end) {
1661 1662 char xfhdr[XFHSIZ];
1662 1663
1663 1664 if (pread(fd, xfhdr, XFHSIZ, xoff) != XFHSIZ)
1664 1665 break;
1665 1666
1666 1667 if (XFHID(xfhdr) == XFJAVASIG) {
1667 1668 (void) printf("%s\n", gettext("java archive file"));
1668 1669 return (1);
1669 1670 }
1670 1671 xoff += sizeof (xfhdr) + XFDATASIZ(xfhdr);
1671 1672 }
1672 1673
1673 1674 /*
1674 1675 * We could just print "ZIP archive" here.
1675 1676 *
1676 1677 * However, customers may be using their own entries in
1677 1678 * /etc/magic to distinguish one kind of ZIP file from another, so
1678 1679 * let's defer the printing of "ZIP archive" to there.
1679 1680 */
1680 1681 return (0);
1681 1682 }
1682 1683
1683 1684 static int
1684 1685 is_crash_dump(const char *buf, int fd)
1685 1686 {
1686 1687 /* LINTED: pointer cast may result in improper alignment */
1687 1688 const dumphdr_t *dhp = (const dumphdr_t *)buf;
1688 1689
1689 1690 /*
1690 1691 * The current DUMP_MAGIC string covers Solaris 7 and later releases.
1691 1692 * The utsname struct is only present in dumphdr_t's with dump_version
1692 1693 * greater than or equal to 9.
1693 1694 */
1694 1695 if (dhp->dump_magic == DUMP_MAGIC) {
1695 1696 print_dumphdr(fd, dhp, return_uint32, NATIVE_ISA);
1696 1697
1697 1698 } else if (dhp->dump_magic == swap_uint32(DUMP_MAGIC)) {
1698 1699 print_dumphdr(fd, dhp, swap_uint32, OTHER_ISA);
1699 1700
1700 1701 } else if (dhp->dump_magic == OLD_DUMP_MAGIC ||
1701 1702 dhp->dump_magic == swap_uint32(OLD_DUMP_MAGIC)) {
1702 1703 char *isa = (dhp->dump_magic == OLD_DUMP_MAGIC ?
1703 1704 NATIVE_ISA : OTHER_ISA);
1704 1705 (void) printf(gettext("SunOS 32-bit %s crash dump\n"), isa);
1705 1706
1706 1707 } else {
1707 1708 return (0);
1708 1709 }
1709 1710
1710 1711 return (1);
1711 1712 }
1712 1713
1713 1714 static void
1714 1715 print_dumphdr(const int fd, const dumphdr_t *dhp, uint32_t (*swap)(uint32_t),
1715 1716 const char *isa)
1716 1717 {
1717 1718 dumphdr_t dh;
1718 1719
1719 1720 /*
1720 1721 * A dumphdr_t is bigger than FBSZ, so we have to manually read the
1721 1722 * rest of it.
1722 1723 */
1723 1724 if (swap(dhp->dump_version) > 8 && pread(fd, &dh, sizeof (dumphdr_t),
1724 1725 (off_t)0) == sizeof (dumphdr_t)) {
1725 1726 const char *c = swap(dh.dump_flags) & DF_COMPRESSED ?
1726 1727 "compressed " : "";
1727 1728 const char *l = swap(dh.dump_flags) & DF_LIVE ?
1728 1729 "live" : "crash";
1729 1730
1730 1731 (void) printf(gettext(
1731 1732 "%s %s %s %u-bit %s %s%s dump from '%s'\n"),
1732 1733 dh.dump_utsname.sysname, dh.dump_utsname.release,
1733 1734 dh.dump_utsname.version, swap(dh.dump_wordsize), isa,
1734 1735 c, l, dh.dump_utsname.nodename);
1735 1736 } else {
1736 1737 (void) printf(gettext("SunOS %u-bit %s crash dump\n"),
1737 1738 swap(dhp->dump_wordsize), isa);
1738 1739 }
1739 1740 }
1740 1741
1741 1742 static void
1742 1743 usage(void)
1743 1744 {
1744 1745 (void) fprintf(stderr, gettext(
1745 1746 "usage: file [-bdh] [-M mfile] [-m mfile] [-f ffile] file ...\n"
1746 1747 " file [-bdh] [-M mfile] [-m mfile] -f ffile\n"
1747 1748 " file -i [-bh] [-f ffile] file ...\n"
1748 1749 " file -i [-bh] -f ffile\n"
1749 1750 " file -c [-d] [-M mfile] [-m mfile]\n"));
1750 1751 exit(2);
1751 1752 }
1752 1753
1753 1754 static uint32_t
1754 1755 swap_uint32(uint32_t in)
1755 1756 {
1756 1757 uint32_t out;
1757 1758
1758 1759 out = (in & 0x000000ff) << 24;
1759 1760 out |= (in & 0x0000ff00) << 8; /* >> 8 << 16 */
1760 1761 out |= (in & 0x00ff0000) >> 8; /* >> 16 << 8 */
1761 1762 out |= (in & 0xff000000) >> 24;
1762 1763
1763 1764 return (out);
1764 1765 }
1765 1766
1766 1767 static uint32_t
1767 1768 return_uint32(uint32_t in)
1768 1769 {
1769 1770 return (in);
1770 1771 }
1771 1772
1772 1773 /*
1773 1774 * Check if str is in the string list str_list.
1774 1775 */
1775 1776 int
1776 1777 is_in_list(char *str)
1777 1778 {
1778 1779 int i;
1779 1780
1780 1781 /*
1781 1782 * Only need to compare the strlen(str_list[i]) bytes.
1782 1783 * That way .stab will match on .stab* sections, and
1783 1784 * .debug will match on .debug* sections.
1784 1785 */
1785 1786 for (i = 0; debug_sections[i] != NULL; i++) {
1786 1787 if (strncmp(debug_sections[i], str,
1787 1788 strlen(debug_sections[i])) == 0) {
1788 1789 return (1);
1789 1790 }
1790 1791 }
1791 1792 return (0);
1792 1793 }
1793 1794
1794 1795 /*
1795 1796 * default_magic -
1796 1797 * allocate space for and create the default magic file
1797 1798 * name string.
1798 1799 */
1799 1800
1800 1801 static void
1801 1802 default_magic(void)
1802 1803 {
1803 1804 const char *msg_locale = setlocale(LC_MESSAGES, NULL);
1804 1805 struct stat statbuf;
1805 1806
1806 1807 if ((dfile = malloc(strlen(msg_locale) + 35)) == NULL) {
1807 1808 int err = errno;
1808 1809 (void) fprintf(stderr, gettext("%s: malloc failed: %s\n"),
1809 1810 File, strerror(err));
1810 1811 exit(2);
1811 1812 }
1812 1813 (void) snprintf(dfile, strlen(msg_locale) + 35,
1813 1814 "/usr/lib/locale/%s/LC_MESSAGES/magic", msg_locale);
1814 1815 if (stat(dfile, &statbuf) != 0) {
1815 1816 (void) strcpy(dfile, "/etc/magic");
1816 1817 }
1817 1818 }
1818 1819
1819 1820 /*
1820 1821 * add_to_mlist -
1821 1822 * Add the given magic_file filename string to the list of magic
1822 1823 * files (mlist). This list of files will later be examined, and
1823 1824 * each magic file's entries will be added in order to
1824 1825 * the mtab table.
1825 1826 *
1826 1827 * The first flag is set to 1 to add to the first list, mlist1.
1827 1828 * The first flag is set to 0 to add to the second list, mlist2.
1828 1829 */
1829 1830
1830 1831 static void
1831 1832 add_to_mlist(char *magic_file, int first)
1832 1833 {
1833 1834 char **mlist; /* ordered list of magic files */
1834 1835 size_t mlist_sz; /* number of pointers allocated for mlist */
1835 1836 char **mlistp; /* next entry in mlist */
1836 1837 size_t mlistp_off;
1837 1838
1838 1839 if (first) {
1839 1840 mlist = mlist1;
1840 1841 mlist_sz = mlist1_sz;
1841 1842 mlistp = mlist1p;
1842 1843 } else {
1843 1844 mlist = mlist2;
1844 1845 mlist_sz = mlist2_sz;
1845 1846 mlistp = mlist2p;
1846 1847 }
1847 1848
1848 1849 if (mlist == NULL) { /* initial mlist allocation */
1849 1850 if ((mlist = calloc(MLIST_SZ, sizeof (char *))) == NULL) {
1850 1851 int err = errno;
1851 1852 (void) fprintf(stderr, gettext("%s: malloc "
1852 1853 "failed: %s\n"), File, strerror(err));
1853 1854 exit(2);
1854 1855 }
1855 1856 mlist_sz = MLIST_SZ;
1856 1857 mlistp = mlist;
1857 1858 }
1858 1859 if ((mlistp - mlist) >= mlist_sz) {
1859 1860 mlistp_off = mlistp - mlist;
1860 1861 mlist_sz *= 2;
1861 1862 if ((mlist = realloc(mlist,
1862 1863 mlist_sz * sizeof (char *))) == NULL) {
1863 1864 int err = errno;
1864 1865 (void) fprintf(stderr, gettext("%s: malloc "
1865 1866 "failed: %s\n"), File, strerror(err));
1866 1867 exit(2);
1867 1868 }
1868 1869 mlistp = mlist + mlistp_off;
1869 1870 }
1870 1871 /*
1871 1872 * now allocate memory for and copy the
1872 1873 * magic file name string
1873 1874 */
1874 1875 if ((*mlistp = malloc(strlen(magic_file) + 1)) == NULL) {
1875 1876 int err = errno;
1876 1877 (void) fprintf(stderr, gettext("%s: malloc failed: %s\n"),
1877 1878 File, strerror(err));
1878 1879 exit(2);
1879 1880 }
1880 1881 (void) strlcpy(*mlistp, magic_file, strlen(magic_file) + 1);
1881 1882 mlistp++;
1882 1883
1883 1884 if (first) {
1884 1885 mlist1 = mlist;
1885 1886 mlist1_sz = mlist_sz;
1886 1887 mlist1p = mlistp;
1887 1888 } else {
1888 1889 mlist2 = mlist;
1889 1890 mlist2_sz = mlist_sz;
1890 1891 mlist2p = mlistp;
1891 1892 }
1892 1893 }
1893 1894
1894 1895 static void
1895 1896 fd_cleanup(void)
1896 1897 {
1897 1898 if (ifd != -1) {
1898 1899 (void) close(ifd);
1899 1900 ifd = -1;
1900 1901 }
1901 1902 if (elffd != -1) {
1902 1903 (void) close(elffd);
1903 1904 elffd = -1;
1904 1905 }
1905 1906 }
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