Commit | Line | Data |
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252b5132 | 1 | /* strings -- print the strings of printable characters in files |
b90efa5b | 2 | Copyright (C) 1993-2015 Free Software Foundation, Inc. |
252b5132 RH |
3 | |
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
32866df7 | 6 | the Free Software Foundation; either version 3, or (at your option) |
252b5132 RH |
7 | any later version. |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; if not, write to the Free Software | |
b43b5d5f NC |
16 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA |
17 | 02110-1301, USA. */ | |
252b5132 RH |
18 | \f |
19 | /* Usage: strings [options] file... | |
20 | ||
21 | Options: | |
22 | --all | |
23 | -a | |
7fac9594 NC |
24 | - Scan each file in its entirety. |
25 | ||
26 | --data | |
27 | -d Scan only the initialized data section(s) of object files. | |
252b5132 RH |
28 | |
29 | --print-file-name | |
30 | -f Print the name of the file before each string. | |
31 | ||
32 | --bytes=min-len | |
33 | -n min-len | |
34 | -min-len Print graphic char sequences, MIN-LEN or more bytes long, | |
35 | that are followed by a NUL or a newline. Default is 4. | |
36 | ||
37 | --radix={o,x,d} | |
38 | -t {o,x,d} Print the offset within the file before each string, | |
39 | in octal/hex/decimal. | |
40 | ||
334ac421 EA |
41 | --include-all-whitespace |
42 | -w By default tab and space are the only whitepace included in graphic | |
43 | char sequences. This option considers all of isspace() valid. | |
44 | ||
252b5132 RH |
45 | -o Like -to. (Some other implementations have -o like -to, |
46 | others like -td. We chose one arbitrarily.) | |
47 | ||
8745eafa NC |
48 | --encoding={s,S,b,l,B,L} |
49 | -e {s,S,b,l,B,L} | |
50 | Select character encoding: 7-bit-character, 8-bit-character, | |
51 | bigendian 16-bit, littleendian 16-bit, bigendian 32-bit, | |
52 | littleendian 32-bit. | |
d132876a | 53 | |
252b5132 | 54 | --target=BFDNAME |
3bf31ec9 | 55 | -T {bfdname} |
252b5132 RH |
56 | Specify a non-default object file format. |
57 | ||
55edd97b EA |
58 | --output-separator=sep_string |
59 | -s sep_string String used to separate parsed strings in output. | |
60 | Default is newline. | |
61 | ||
252b5132 RH |
62 | --help |
63 | -h Print the usage message on the standard output. | |
64 | ||
65 | --version | |
ffbe5983 | 66 | -V |
252b5132 RH |
67 | -v Print the program version number. |
68 | ||
69 | Written by Richard Stallman <rms@gnu.ai.mit.edu> | |
70 | and David MacKenzie <djm@gnu.ai.mit.edu>. */ | |
71 | ||
3db64b00 | 72 | #include "sysdep.h" |
252b5132 | 73 | #include "bfd.h" |
e9792343 | 74 | #include "getopt.h" |
252b5132 | 75 | #include "libiberty.h" |
3882b010 | 76 | #include "safe-ctype.h" |
3db64b00 | 77 | #include "bucomm.h" |
252b5132 | 78 | |
8745eafa NC |
79 | #define STRING_ISGRAPHIC(c) \ |
80 | ( (c) >= 0 \ | |
81 | && (c) <= 255 \ | |
334ac421 EA |
82 | && ((c) == '\t' || ISPRINT (c) || (encoding == 'S' && (c) > 127) \ |
83 | || (include_all_whitespace == TRUE && ISSPACE (c))) \ | |
84 | ) | |
252b5132 RH |
85 | |
86 | #ifndef errno | |
87 | extern int errno; | |
88 | #endif | |
89 | ||
90 | /* The BFD section flags that identify an initialized data section. */ | |
91 | #define DATA_FLAGS (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS) | |
92 | ||
93 | /* Radix for printing addresses (must be 8, 10 or 16). */ | |
94 | static int address_radix; | |
95 | ||
96 | /* Minimum length of sequence of graphic chars to trigger output. */ | |
97 | static int string_min; | |
98 | ||
334ac421 EA |
99 | /* Whether or not we include all whitespace as a graphic char. */ |
100 | static bfd_boolean include_all_whitespace; | |
101 | ||
b34976b6 AM |
102 | /* TRUE means print address within file for each string. */ |
103 | static bfd_boolean print_addresses; | |
252b5132 | 104 | |
b34976b6 AM |
105 | /* TRUE means print filename for each string. */ |
106 | static bfd_boolean print_filenames; | |
252b5132 | 107 | |
b34976b6 AM |
108 | /* TRUE means for object files scan only the data section. */ |
109 | static bfd_boolean datasection_only; | |
252b5132 | 110 | |
b34976b6 AM |
111 | /* TRUE if we found an initialized data section in the current file. */ |
112 | static bfd_boolean got_a_section; | |
252b5132 RH |
113 | |
114 | /* The BFD object file format. */ | |
115 | static char *target; | |
116 | ||
d132876a NC |
117 | /* The character encoding format. */ |
118 | static char encoding; | |
119 | static int encoding_bytes; | |
120 | ||
55edd97b EA |
121 | /* Output string used to separate parsed strings */ |
122 | static char *output_separator; | |
123 | ||
252b5132 RH |
124 | static struct option long_options[] = |
125 | { | |
126 | {"all", no_argument, NULL, 'a'}, | |
7fac9594 | 127 | {"data", no_argument, NULL, 'd'}, |
252b5132 RH |
128 | {"print-file-name", no_argument, NULL, 'f'}, |
129 | {"bytes", required_argument, NULL, 'n'}, | |
130 | {"radix", required_argument, NULL, 't'}, | |
334ac421 | 131 | {"include-all-whitespace", required_argument, NULL, 'w'}, |
d132876a | 132 | {"encoding", required_argument, NULL, 'e'}, |
252b5132 | 133 | {"target", required_argument, NULL, 'T'}, |
55edd97b | 134 | {"output-separator", required_argument, NULL, 's'}, |
252b5132 RH |
135 | {"help", no_argument, NULL, 'h'}, |
136 | {"version", no_argument, NULL, 'v'}, | |
137 | {NULL, 0, NULL, 0} | |
138 | }; | |
139 | ||
06803313 NC |
140 | /* Records the size of a named file so that we |
141 | do not repeatedly run bfd_stat() on it. */ | |
142 | ||
143 | typedef struct | |
144 | { | |
145 | const char * filename; | |
146 | bfd_size_type filesize; | |
147 | } filename_and_size_t; | |
148 | ||
2da42df6 AJ |
149 | static void strings_a_section (bfd *, asection *, void *); |
150 | static bfd_boolean strings_object_file (const char *); | |
7fac9594 | 151 | static bfd_boolean strings_file (char *); |
ee2fb9eb | 152 | static void print_strings (const char *, FILE *, file_ptr, int, int, char *); |
2da42df6 | 153 | static void usage (FILE *, int); |
ee2fb9eb | 154 | static long get_char (FILE *, file_ptr *, int *, char **); |
252b5132 | 155 | \f |
2da42df6 | 156 | int main (int, char **); |
65de42c0 | 157 | |
252b5132 | 158 | int |
2da42df6 | 159 | main (int argc, char **argv) |
252b5132 RH |
160 | { |
161 | int optc; | |
162 | int exit_status = 0; | |
b34976b6 | 163 | bfd_boolean files_given = FALSE; |
508e676d | 164 | char *s; |
e36aef42 | 165 | int numeric_opt = 0; |
252b5132 | 166 | |
3882b010 | 167 | #if defined (HAVE_SETLOCALE) |
1c529ca6 | 168 | setlocale (LC_ALL, ""); |
252b5132 RH |
169 | #endif |
170 | bindtextdomain (PACKAGE, LOCALEDIR); | |
171 | textdomain (PACKAGE); | |
172 | ||
173 | program_name = argv[0]; | |
174 | xmalloc_set_program_name (program_name); | |
86eafac0 | 175 | bfd_set_error_program_name (program_name); |
869b9d07 MM |
176 | |
177 | expandargv (&argc, &argv); | |
178 | ||
c904a764 | 179 | string_min = 4; |
334ac421 | 180 | include_all_whitespace = FALSE; |
b34976b6 AM |
181 | print_addresses = FALSE; |
182 | print_filenames = FALSE; | |
7fac9594 NC |
183 | if (DEFAULT_STRINGS_ALL) |
184 | datasection_only = FALSE; | |
185 | else | |
186 | datasection_only = TRUE; | |
252b5132 | 187 | target = NULL; |
d132876a | 188 | encoding = 's'; |
55edd97b | 189 | output_separator = NULL; |
252b5132 | 190 | |
55edd97b | 191 | while ((optc = getopt_long (argc, argv, "adfhHn:wot:e:T:s:Vv0123456789", |
252b5132 RH |
192 | long_options, (int *) 0)) != EOF) |
193 | { | |
194 | switch (optc) | |
195 | { | |
196 | case 'a': | |
b34976b6 | 197 | datasection_only = FALSE; |
252b5132 RH |
198 | break; |
199 | ||
7fac9594 NC |
200 | case 'd': |
201 | datasection_only = TRUE; | |
202 | break; | |
203 | ||
252b5132 | 204 | case 'f': |
b34976b6 | 205 | print_filenames = TRUE; |
252b5132 RH |
206 | break; |
207 | ||
8b53311e | 208 | case 'H': |
252b5132 RH |
209 | case 'h': |
210 | usage (stdout, 0); | |
211 | ||
212 | case 'n': | |
508e676d JK |
213 | string_min = (int) strtoul (optarg, &s, 0); |
214 | if (s != NULL && *s != 0) | |
215 | fatal (_("invalid integer argument %s"), optarg); | |
252b5132 RH |
216 | break; |
217 | ||
334ac421 EA |
218 | case 'w': |
219 | include_all_whitespace = TRUE; | |
220 | break; | |
221 | ||
252b5132 | 222 | case 'o': |
b34976b6 | 223 | print_addresses = TRUE; |
252b5132 RH |
224 | address_radix = 8; |
225 | break; | |
226 | ||
227 | case 't': | |
b34976b6 | 228 | print_addresses = TRUE; |
252b5132 RH |
229 | if (optarg[1] != '\0') |
230 | usage (stderr, 1); | |
231 | switch (optarg[0]) | |
232 | { | |
233 | case 'o': | |
234 | address_radix = 8; | |
235 | break; | |
236 | ||
237 | case 'd': | |
238 | address_radix = 10; | |
239 | break; | |
240 | ||
241 | case 'x': | |
242 | address_radix = 16; | |
243 | break; | |
244 | ||
245 | default: | |
246 | usage (stderr, 1); | |
247 | } | |
248 | break; | |
249 | ||
250 | case 'T': | |
251 | target = optarg; | |
252 | break; | |
253 | ||
d132876a NC |
254 | case 'e': |
255 | if (optarg[1] != '\0') | |
256 | usage (stderr, 1); | |
257 | encoding = optarg[0]; | |
258 | break; | |
259 | ||
55edd97b EA |
260 | case 's': |
261 | output_separator = optarg; | |
262 | break; | |
263 | ||
8b53311e | 264 | case 'V': |
252b5132 RH |
265 | case 'v': |
266 | print_version ("strings"); | |
267 | break; | |
268 | ||
269 | case '?': | |
270 | usage (stderr, 1); | |
271 | ||
272 | default: | |
e36aef42 | 273 | numeric_opt = optind; |
252b5132 RH |
274 | break; |
275 | } | |
276 | } | |
277 | ||
e36aef42 AM |
278 | if (numeric_opt != 0) |
279 | { | |
280 | string_min = (int) strtoul (argv[numeric_opt - 1] + 1, &s, 0); | |
281 | if (s != NULL && *s != 0) | |
282 | fatal (_("invalid integer argument %s"), argv[numeric_opt - 1] + 1); | |
283 | } | |
c904a764 NC |
284 | if (string_min < 1) |
285 | fatal (_("invalid minimum string length %d"), string_min); | |
252b5132 | 286 | |
d132876a NC |
287 | switch (encoding) |
288 | { | |
8745eafa | 289 | case 'S': |
d132876a NC |
290 | case 's': |
291 | encoding_bytes = 1; | |
292 | break; | |
293 | case 'b': | |
294 | case 'l': | |
295 | encoding_bytes = 2; | |
296 | break; | |
297 | case 'B': | |
298 | case 'L': | |
299 | encoding_bytes = 4; | |
300 | break; | |
301 | default: | |
302 | usage (stderr, 1); | |
303 | } | |
304 | ||
252b5132 RH |
305 | bfd_init (); |
306 | set_default_bfd_target (); | |
307 | ||
308 | if (optind >= argc) | |
309 | { | |
b34976b6 | 310 | datasection_only = FALSE; |
5af11cab | 311 | SET_BINARY (fileno (stdin)); |
252b5132 | 312 | print_strings ("{standard input}", stdin, 0, 0, 0, (char *) NULL); |
b34976b6 | 313 | files_given = TRUE; |
252b5132 RH |
314 | } |
315 | else | |
316 | { | |
317 | for (; optind < argc; ++optind) | |
318 | { | |
319 | if (strcmp (argv[optind], "-") == 0) | |
b34976b6 | 320 | datasection_only = FALSE; |
252b5132 RH |
321 | else |
322 | { | |
b34976b6 AM |
323 | files_given = TRUE; |
324 | exit_status |= strings_file (argv[optind]) == FALSE; | |
252b5132 RH |
325 | } |
326 | } | |
327 | } | |
328 | ||
b34976b6 | 329 | if (!files_given) |
252b5132 RH |
330 | usage (stderr, 1); |
331 | ||
332 | return (exit_status); | |
333 | } | |
334 | \f | |
06803313 NC |
335 | /* Scan section SECT of the file ABFD, whose printable name is in |
336 | ARG->filename and whose size might be in ARG->filesize. If it | |
337 | contains initialized data set `got_a_section' and print the | |
338 | strings in it. | |
339 | ||
340 | FIXME: We ought to be able to return error codes/messages for | |
341 | certain conditions. */ | |
252b5132 RH |
342 | |
343 | static void | |
06803313 | 344 | strings_a_section (bfd *abfd, asection *sect, void *arg) |
252b5132 | 345 | { |
06803313 NC |
346 | filename_and_size_t * filename_and_sizep; |
347 | bfd_size_type *filesizep; | |
348 | bfd_size_type sectsize; | |
349 | void *mem; | |
3aade688 | 350 | |
06803313 NC |
351 | if ((sect->flags & DATA_FLAGS) != DATA_FLAGS) |
352 | return; | |
353 | ||
354 | sectsize = bfd_get_section_size (sect); | |
3aade688 | 355 | |
06803313 NC |
356 | if (sectsize <= 0) |
357 | return; | |
358 | ||
359 | /* Get the size of the file. This might have been cached for us. */ | |
360 | filename_and_sizep = (filename_and_size_t *) arg; | |
361 | filesizep = & filename_and_sizep->filesize; | |
362 | ||
363 | if (*filesizep == 0) | |
364 | { | |
365 | struct stat st; | |
3aade688 | 366 | |
06803313 NC |
367 | if (bfd_stat (abfd, &st)) |
368 | return; | |
369 | ||
370 | /* Cache the result so that we do not repeatedly stat this file. */ | |
371 | *filesizep = st.st_size; | |
372 | } | |
252b5132 | 373 | |
06803313 NC |
374 | /* Compare the size of the section against the size of the file. |
375 | If the section is bigger then the file must be corrupt and | |
376 | we should not try dumping it. */ | |
377 | if (sectsize >= *filesizep) | |
378 | return; | |
379 | ||
380 | mem = xmalloc (sectsize); | |
381 | ||
382 | if (bfd_get_section_contents (abfd, sect, mem, (file_ptr) 0, sectsize)) | |
252b5132 | 383 | { |
06803313 | 384 | got_a_section = TRUE; |
8745eafa | 385 | |
06803313 | 386 | print_strings (filename_and_sizep->filename, NULL, sect->filepos, |
3f5e193b | 387 | 0, sectsize, (char *) mem); |
252b5132 | 388 | } |
06803313 NC |
389 | |
390 | free (mem); | |
252b5132 RH |
391 | } |
392 | ||
393 | /* Scan all of the sections in FILE, and print the strings | |
394 | in the initialized data section(s). | |
395 | ||
b34976b6 AM |
396 | Return TRUE if successful, |
397 | FALSE if not (such as if FILE is not an object file). */ | |
252b5132 | 398 | |
b34976b6 | 399 | static bfd_boolean |
2da42df6 | 400 | strings_object_file (const char *file) |
252b5132 | 401 | { |
06803313 NC |
402 | filename_and_size_t filename_and_size; |
403 | bfd *abfd; | |
404 | ||
405 | abfd = bfd_openr (file, target); | |
252b5132 RH |
406 | |
407 | if (abfd == NULL) | |
8745eafa NC |
408 | /* Treat the file as a non-object file. */ |
409 | return FALSE; | |
252b5132 RH |
410 | |
411 | /* This call is mainly for its side effect of reading in the sections. | |
412 | We follow the traditional behavior of `strings' in that we don't | |
413 | complain if we don't recognize a file to be an object file. */ | |
b34976b6 | 414 | if (!bfd_check_format (abfd, bfd_object)) |
252b5132 RH |
415 | { |
416 | bfd_close (abfd); | |
b34976b6 | 417 | return FALSE; |
252b5132 RH |
418 | } |
419 | ||
b34976b6 | 420 | got_a_section = FALSE; |
06803313 NC |
421 | filename_and_size.filename = file; |
422 | filename_and_size.filesize = 0; | |
423 | bfd_map_over_sections (abfd, strings_a_section, & filename_and_size); | |
252b5132 RH |
424 | |
425 | if (!bfd_close (abfd)) | |
426 | { | |
427 | bfd_nonfatal (file); | |
b34976b6 | 428 | return FALSE; |
252b5132 RH |
429 | } |
430 | ||
431 | return got_a_section; | |
432 | } | |
433 | ||
b34976b6 | 434 | /* Print the strings in FILE. Return TRUE if ok, FALSE if an error occurs. */ |
252b5132 | 435 | |
b34976b6 | 436 | static bfd_boolean |
2da42df6 | 437 | strings_file (char *file) |
252b5132 | 438 | { |
ee2fb9eb JK |
439 | struct stat st; |
440 | ||
441 | /* get_file_size does not support non-S_ISREG files. */ | |
fb5b5478 | 442 | |
ee2fb9eb | 443 | if (stat (file, &st) < 0) |
fb5b5478 JJ |
444 | { |
445 | if (errno == ENOENT) | |
446 | non_fatal (_("'%s': No such file"), file); | |
447 | else | |
448 | non_fatal (_("Warning: could not locate '%s'. reason: %s"), | |
449 | file, strerror (errno)); | |
450 | return FALSE; | |
451 | } | |
f24ddbdd | 452 | |
252b5132 RH |
453 | /* If we weren't told to scan the whole file, |
454 | try to open it as an object file and only look at | |
455 | initialized data sections. If that fails, fall back to the | |
456 | whole file. */ | |
457 | if (!datasection_only || !strings_object_file (file)) | |
458 | { | |
459 | FILE *stream; | |
460 | ||
ee2fb9eb | 461 | stream = fopen (file, FOPEN_RB); |
252b5132 RH |
462 | if (stream == NULL) |
463 | { | |
464 | fprintf (stderr, "%s: ", program_name); | |
465 | perror (file); | |
b34976b6 | 466 | return FALSE; |
252b5132 RH |
467 | } |
468 | ||
ee2fb9eb | 469 | print_strings (file, stream, (file_ptr) 0, 0, 0, (char *) 0); |
252b5132 RH |
470 | |
471 | if (fclose (stream) == EOF) | |
472 | { | |
473 | fprintf (stderr, "%s: ", program_name); | |
474 | perror (file); | |
b34976b6 | 475 | return FALSE; |
252b5132 RH |
476 | } |
477 | } | |
478 | ||
b34976b6 | 479 | return TRUE; |
252b5132 RH |
480 | } |
481 | \f | |
d132876a NC |
482 | /* Read the next character, return EOF if none available. |
483 | Assume that STREAM is positioned so that the next byte read | |
484 | is at address ADDRESS in the file. | |
485 | ||
486 | If STREAM is NULL, do not read from it. | |
487 | The caller can supply a buffer of characters | |
488 | to be processed before the data in STREAM. | |
489 | MAGIC is the address of the buffer and | |
490 | MAGICCOUNT is how many characters are in it. */ | |
491 | ||
492 | static long | |
ee2fb9eb | 493 | get_char (FILE *stream, file_ptr *address, int *magiccount, char **magic) |
d132876a NC |
494 | { |
495 | int c, i; | |
c54e2ec1 | 496 | long r = 0; |
d132876a NC |
497 | |
498 | for (i = 0; i < encoding_bytes; i++) | |
499 | { | |
500 | if (*magiccount) | |
501 | { | |
502 | (*magiccount)--; | |
503 | c = *(*magic)++; | |
504 | } | |
505 | else | |
506 | { | |
507 | if (stream == NULL) | |
508 | return EOF; | |
b7d4af3a JW |
509 | |
510 | /* Only use getc_unlocked if we found a declaration for it. | |
511 | Otherwise, libc is not thread safe by default, and we | |
512 | should not use it. */ | |
513 | ||
514 | #if defined(HAVE_GETC_UNLOCKED) && HAVE_DECL_GETC_UNLOCKED | |
cedd9a58 JJ |
515 | c = getc_unlocked (stream); |
516 | #else | |
d132876a | 517 | c = getc (stream); |
cedd9a58 | 518 | #endif |
d132876a NC |
519 | if (c == EOF) |
520 | return EOF; | |
521 | } | |
522 | ||
523 | (*address)++; | |
c54e2ec1 | 524 | r = (r << 8) | (c & 0xff); |
d132876a NC |
525 | } |
526 | ||
527 | switch (encoding) | |
528 | { | |
c54e2ec1 | 529 | default: |
d132876a NC |
530 | break; |
531 | case 'l': | |
c54e2ec1 | 532 | r = ((r & 0xff) << 8) | ((r & 0xff00) >> 8); |
d132876a NC |
533 | break; |
534 | case 'L': | |
c54e2ec1 AM |
535 | r = (((r & 0xff) << 24) | ((r & 0xff00) << 8) |
536 | | ((r & 0xff0000) >> 8) | ((r & 0xff000000) >> 24)); | |
d132876a NC |
537 | break; |
538 | } | |
539 | ||
d132876a NC |
540 | return r; |
541 | } | |
542 | \f | |
252b5132 RH |
543 | /* Find the strings in file FILENAME, read from STREAM. |
544 | Assume that STREAM is positioned so that the next byte read | |
545 | is at address ADDRESS in the file. | |
546 | Stop reading at address STOP_POINT in the file, if nonzero. | |
547 | ||
548 | If STREAM is NULL, do not read from it. | |
549 | The caller can supply a buffer of characters | |
550 | to be processed before the data in STREAM. | |
551 | MAGIC is the address of the buffer and | |
552 | MAGICCOUNT is how many characters are in it. | |
553 | Those characters come at address ADDRESS and the data in STREAM follow. */ | |
554 | ||
555 | static void | |
ee2fb9eb | 556 | print_strings (const char *filename, FILE *stream, file_ptr address, |
2da42df6 | 557 | int stop_point, int magiccount, char *magic) |
252b5132 | 558 | { |
d132876a | 559 | char *buf = (char *) xmalloc (sizeof (char) * (string_min + 1)); |
252b5132 RH |
560 | |
561 | while (1) | |
562 | { | |
ee2fb9eb | 563 | file_ptr start; |
252b5132 | 564 | int i; |
d132876a | 565 | long c; |
252b5132 RH |
566 | |
567 | /* See if the next `string_min' chars are all graphic chars. */ | |
568 | tryline: | |
569 | if (stop_point && address >= stop_point) | |
570 | break; | |
571 | start = address; | |
572 | for (i = 0; i < string_min; i++) | |
573 | { | |
d132876a NC |
574 | c = get_char (stream, &address, &magiccount, &magic); |
575 | if (c == EOF) | |
68187828 NC |
576 | { |
577 | free (buf); | |
578 | return; | |
579 | } | |
8745eafa | 580 | if (! STRING_ISGRAPHIC (c)) |
252b5132 RH |
581 | /* Found a non-graphic. Try again starting with next char. */ |
582 | goto tryline; | |
583 | buf[i] = c; | |
584 | } | |
585 | ||
586 | /* We found a run of `string_min' graphic characters. Print up | |
e9f87780 | 587 | to the next non-graphic character. */ |
252b5132 RH |
588 | |
589 | if (print_filenames) | |
590 | printf ("%s: ", filename); | |
591 | if (print_addresses) | |
592 | switch (address_radix) | |
593 | { | |
594 | case 8: | |
4c219c2e | 595 | #ifdef HAVE_LONG_LONG |
cedd9a58 | 596 | if (sizeof (start) > sizeof (long)) |
6e3d6dc1 | 597 | { |
4c219c2e | 598 | # ifndef __MSVCRT__ |
6e3d6dc1 | 599 | printf ("%7llo ", (unsigned long long) start); |
4c219c2e | 600 | # else |
6e3d6dc1 | 601 | printf ("%7I64o ", (unsigned long long) start); |
4c219c2e | 602 | # endif |
6e3d6dc1 | 603 | } |
cedd9a58 | 604 | else |
50e3244d | 605 | #elif !BFD_HOST_64BIT_LONG |
cedd9a58 JJ |
606 | if (start != (unsigned long) start) |
607 | printf ("++%7lo ", (unsigned long) start); | |
608 | else | |
cedd9a58 JJ |
609 | #endif |
610 | printf ("%7lo ", (unsigned long) start); | |
252b5132 RH |
611 | break; |
612 | ||
613 | case 10: | |
4c219c2e | 614 | #ifdef HAVE_LONG_LONG |
cedd9a58 | 615 | if (sizeof (start) > sizeof (long)) |
6e3d6dc1 | 616 | { |
4c219c2e | 617 | # ifndef __MSVCRT__ |
6e3d6dc1 | 618 | printf ("%7lld ", (unsigned long long) start); |
4c219c2e | 619 | # else |
6e3d6dc1 | 620 | printf ("%7I64d ", (unsigned long long) start); |
4c219c2e | 621 | # endif |
6e3d6dc1 | 622 | } |
cedd9a58 | 623 | else |
50e3244d | 624 | #elif !BFD_HOST_64BIT_LONG |
cedd9a58 JJ |
625 | if (start != (unsigned long) start) |
626 | printf ("++%7ld ", (unsigned long) start); | |
627 | else | |
cedd9a58 JJ |
628 | #endif |
629 | printf ("%7ld ", (long) start); | |
252b5132 RH |
630 | break; |
631 | ||
632 | case 16: | |
4c219c2e | 633 | #ifdef HAVE_LONG_LONG |
cedd9a58 | 634 | if (sizeof (start) > sizeof (long)) |
6e3d6dc1 | 635 | { |
4c219c2e | 636 | # ifndef __MSVCRT__ |
6e3d6dc1 | 637 | printf ("%7llx ", (unsigned long long) start); |
4c219c2e | 638 | # else |
6e3d6dc1 | 639 | printf ("%7I64x ", (unsigned long long) start); |
4c219c2e | 640 | # endif |
6e3d6dc1 | 641 | } |
cedd9a58 | 642 | else |
50e3244d | 643 | #elif !BFD_HOST_64BIT_LONG |
cedd9a58 | 644 | if (start != (unsigned long) start) |
e9f87780 AM |
645 | printf ("%lx%8.8lx ", (unsigned long) (start >> 32), |
646 | (unsigned long) (start & 0xffffffff)); | |
cedd9a58 | 647 | else |
cedd9a58 JJ |
648 | #endif |
649 | printf ("%7lx ", (unsigned long) start); | |
252b5132 RH |
650 | break; |
651 | } | |
652 | ||
653 | buf[i] = '\0'; | |
654 | fputs (buf, stdout); | |
655 | ||
656 | while (1) | |
657 | { | |
d132876a NC |
658 | c = get_char (stream, &address, &magiccount, &magic); |
659 | if (c == EOF) | |
660 | break; | |
8745eafa | 661 | if (! STRING_ISGRAPHIC (c)) |
252b5132 RH |
662 | break; |
663 | putchar (c); | |
664 | } | |
665 | ||
55edd97b EA |
666 | if (output_separator) |
667 | fputs (output_separator, stdout); | |
668 | else | |
669 | putchar ('\n'); | |
252b5132 | 670 | } |
68187828 | 671 | free (buf); |
252b5132 RH |
672 | } |
673 | \f | |
252b5132 | 674 | static void |
2da42df6 | 675 | usage (FILE *stream, int status) |
252b5132 | 676 | { |
8b53311e NC |
677 | fprintf (stream, _("Usage: %s [option(s)] [file(s)]\n"), program_name); |
678 | fprintf (stream, _(" Display printable strings in [file(s)] (stdin by default)\n")); | |
7fac9594 NC |
679 | fprintf (stream, _(" The options are:\n")); |
680 | ||
681 | if (DEFAULT_STRINGS_ALL) | |
682 | fprintf (stream, _("\ | |
683 | -a - --all Scan the entire file, not just the data section [default]\n\ | |
684 | -d --data Only scan the data sections in the file\n")); | |
685 | else | |
686 | fprintf (stream, _("\ | |
8b53311e | 687 | -a - --all Scan the entire file, not just the data section\n\ |
7fac9594 NC |
688 | -d --data Only scan the data sections in the file [default]\n")); |
689 | ||
690 | fprintf (stream, _("\ | |
8b53311e NC |
691 | -f --print-file-name Print the name of the file before each string\n\ |
692 | -n --bytes=[number] Locate & print any NUL-terminated sequence of at\n\ | |
c904a764 | 693 | -<number> least [number] characters (default 4).\n\ |
d412a550 | 694 | -t --radix={o,d,x} Print the location of the string in base 8, 10 or 16\n\ |
334ac421 | 695 | -w --include-all-whitespace Include all whitespace as valid string characters\n\ |
8b53311e NC |
696 | -o An alias for --radix=o\n\ |
697 | -T --target=<BFDNAME> Specify the binary file format\n\ | |
8745eafa NC |
698 | -e --encoding={s,S,b,l,B,L} Select character size and endianness:\n\ |
699 | s = 7-bit, S = 8-bit, {b,l} = 16-bit, {B,L} = 32-bit\n\ | |
55edd97b | 700 | -s --output-separator=<string> String used to separate strings in output.\n\ |
07012eee | 701 | @<file> Read options from <file>\n\ |
8b53311e | 702 | -h --help Display this information\n\ |
ffbe5983 | 703 | -v -V --version Print the program's version number\n")); |
252b5132 | 704 | list_supported_targets (program_name, stream); |
92f01d61 | 705 | if (REPORT_BUGS_TO[0] && status == 0) |
8ad3436c | 706 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); |
252b5132 RH |
707 | exit (status); |
708 | } |