Commit | Line | Data |
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252b5132 | 1 | /* strings -- print the strings of printable characters in files |
6f2750fe | 2 | Copyright (C) 1993-2016 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 | ||
7fac9594 | 149 | static bfd_boolean strings_file (char *); |
ee2fb9eb | 150 | static void print_strings (const char *, FILE *, file_ptr, int, int, char *); |
1e0f0b4d | 151 | static void usage (FILE *, int) ATTRIBUTE_NORETURN; |
252b5132 | 152 | \f |
2da42df6 | 153 | int main (int, char **); |
65de42c0 | 154 | |
252b5132 | 155 | int |
2da42df6 | 156 | main (int argc, char **argv) |
252b5132 RH |
157 | { |
158 | int optc; | |
159 | int exit_status = 0; | |
b34976b6 | 160 | bfd_boolean files_given = FALSE; |
508e676d | 161 | char *s; |
e36aef42 | 162 | int numeric_opt = 0; |
252b5132 | 163 | |
3882b010 | 164 | #if defined (HAVE_SETLOCALE) |
1c529ca6 | 165 | setlocale (LC_ALL, ""); |
252b5132 RH |
166 | #endif |
167 | bindtextdomain (PACKAGE, LOCALEDIR); | |
168 | textdomain (PACKAGE); | |
169 | ||
170 | program_name = argv[0]; | |
171 | xmalloc_set_program_name (program_name); | |
86eafac0 | 172 | bfd_set_error_program_name (program_name); |
869b9d07 MM |
173 | |
174 | expandargv (&argc, &argv); | |
175 | ||
c904a764 | 176 | string_min = 4; |
334ac421 | 177 | include_all_whitespace = FALSE; |
b34976b6 AM |
178 | print_addresses = FALSE; |
179 | print_filenames = FALSE; | |
7fac9594 NC |
180 | if (DEFAULT_STRINGS_ALL) |
181 | datasection_only = FALSE; | |
182 | else | |
183 | datasection_only = TRUE; | |
252b5132 | 184 | target = NULL; |
d132876a | 185 | encoding = 's'; |
55edd97b | 186 | output_separator = NULL; |
252b5132 | 187 | |
55edd97b | 188 | while ((optc = getopt_long (argc, argv, "adfhHn:wot:e:T:s:Vv0123456789", |
252b5132 RH |
189 | long_options, (int *) 0)) != EOF) |
190 | { | |
191 | switch (optc) | |
192 | { | |
193 | case 'a': | |
b34976b6 | 194 | datasection_only = FALSE; |
252b5132 RH |
195 | break; |
196 | ||
7fac9594 NC |
197 | case 'd': |
198 | datasection_only = TRUE; | |
199 | break; | |
200 | ||
252b5132 | 201 | case 'f': |
b34976b6 | 202 | print_filenames = TRUE; |
252b5132 RH |
203 | break; |
204 | ||
8b53311e | 205 | case 'H': |
252b5132 RH |
206 | case 'h': |
207 | usage (stdout, 0); | |
208 | ||
209 | case 'n': | |
508e676d JK |
210 | string_min = (int) strtoul (optarg, &s, 0); |
211 | if (s != NULL && *s != 0) | |
212 | fatal (_("invalid integer argument %s"), optarg); | |
252b5132 RH |
213 | break; |
214 | ||
334ac421 EA |
215 | case 'w': |
216 | include_all_whitespace = TRUE; | |
217 | break; | |
218 | ||
252b5132 | 219 | case 'o': |
b34976b6 | 220 | print_addresses = TRUE; |
252b5132 RH |
221 | address_radix = 8; |
222 | break; | |
223 | ||
224 | case 't': | |
b34976b6 | 225 | print_addresses = TRUE; |
252b5132 RH |
226 | if (optarg[1] != '\0') |
227 | usage (stderr, 1); | |
228 | switch (optarg[0]) | |
229 | { | |
230 | case 'o': | |
231 | address_radix = 8; | |
232 | break; | |
233 | ||
234 | case 'd': | |
235 | address_radix = 10; | |
236 | break; | |
237 | ||
238 | case 'x': | |
239 | address_radix = 16; | |
240 | break; | |
241 | ||
242 | default: | |
243 | usage (stderr, 1); | |
244 | } | |
245 | break; | |
246 | ||
247 | case 'T': | |
248 | target = optarg; | |
249 | break; | |
250 | ||
d132876a NC |
251 | case 'e': |
252 | if (optarg[1] != '\0') | |
253 | usage (stderr, 1); | |
254 | encoding = optarg[0]; | |
255 | break; | |
256 | ||
55edd97b EA |
257 | case 's': |
258 | output_separator = optarg; | |
259 | break; | |
260 | ||
8b53311e | 261 | case 'V': |
252b5132 RH |
262 | case 'v': |
263 | print_version ("strings"); | |
264 | break; | |
265 | ||
266 | case '?': | |
267 | usage (stderr, 1); | |
268 | ||
269 | default: | |
e36aef42 | 270 | numeric_opt = optind; |
252b5132 RH |
271 | break; |
272 | } | |
273 | } | |
274 | ||
e36aef42 AM |
275 | if (numeric_opt != 0) |
276 | { | |
277 | string_min = (int) strtoul (argv[numeric_opt - 1] + 1, &s, 0); | |
278 | if (s != NULL && *s != 0) | |
279 | fatal (_("invalid integer argument %s"), argv[numeric_opt - 1] + 1); | |
280 | } | |
c904a764 NC |
281 | if (string_min < 1) |
282 | fatal (_("invalid minimum string length %d"), string_min); | |
252b5132 | 283 | |
d132876a NC |
284 | switch (encoding) |
285 | { | |
8745eafa | 286 | case 'S': |
d132876a NC |
287 | case 's': |
288 | encoding_bytes = 1; | |
289 | break; | |
290 | case 'b': | |
291 | case 'l': | |
292 | encoding_bytes = 2; | |
293 | break; | |
294 | case 'B': | |
295 | case 'L': | |
296 | encoding_bytes = 4; | |
297 | break; | |
298 | default: | |
299 | usage (stderr, 1); | |
300 | } | |
301 | ||
252b5132 RH |
302 | bfd_init (); |
303 | set_default_bfd_target (); | |
304 | ||
305 | if (optind >= argc) | |
306 | { | |
b34976b6 | 307 | datasection_only = FALSE; |
5af11cab | 308 | SET_BINARY (fileno (stdin)); |
252b5132 | 309 | print_strings ("{standard input}", stdin, 0, 0, 0, (char *) NULL); |
b34976b6 | 310 | files_given = TRUE; |
252b5132 RH |
311 | } |
312 | else | |
313 | { | |
314 | for (; optind < argc; ++optind) | |
315 | { | |
316 | if (strcmp (argv[optind], "-") == 0) | |
b34976b6 | 317 | datasection_only = FALSE; |
252b5132 RH |
318 | else |
319 | { | |
b34976b6 AM |
320 | files_given = TRUE; |
321 | exit_status |= strings_file (argv[optind]) == FALSE; | |
252b5132 RH |
322 | } |
323 | } | |
324 | } | |
325 | ||
b34976b6 | 326 | if (!files_given) |
252b5132 RH |
327 | usage (stderr, 1); |
328 | ||
329 | return (exit_status); | |
330 | } | |
331 | \f | |
06803313 NC |
332 | /* Scan section SECT of the file ABFD, whose printable name is in |
333 | ARG->filename and whose size might be in ARG->filesize. If it | |
334 | contains initialized data set `got_a_section' and print the | |
335 | strings in it. | |
336 | ||
337 | FIXME: We ought to be able to return error codes/messages for | |
338 | certain conditions. */ | |
252b5132 RH |
339 | |
340 | static void | |
06803313 | 341 | strings_a_section (bfd *abfd, asection *sect, void *arg) |
252b5132 | 342 | { |
06803313 NC |
343 | filename_and_size_t * filename_and_sizep; |
344 | bfd_size_type *filesizep; | |
345 | bfd_size_type sectsize; | |
346 | void *mem; | |
3aade688 | 347 | |
06803313 NC |
348 | if ((sect->flags & DATA_FLAGS) != DATA_FLAGS) |
349 | return; | |
350 | ||
351 | sectsize = bfd_get_section_size (sect); | |
3aade688 | 352 | |
06803313 NC |
353 | if (sectsize <= 0) |
354 | return; | |
355 | ||
356 | /* Get the size of the file. This might have been cached for us. */ | |
357 | filename_and_sizep = (filename_and_size_t *) arg; | |
358 | filesizep = & filename_and_sizep->filesize; | |
359 | ||
360 | if (*filesizep == 0) | |
361 | { | |
362 | struct stat st; | |
3aade688 | 363 | |
06803313 NC |
364 | if (bfd_stat (abfd, &st)) |
365 | return; | |
366 | ||
367 | /* Cache the result so that we do not repeatedly stat this file. */ | |
368 | *filesizep = st.st_size; | |
369 | } | |
252b5132 | 370 | |
06803313 NC |
371 | /* Compare the size of the section against the size of the file. |
372 | If the section is bigger then the file must be corrupt and | |
373 | we should not try dumping it. */ | |
374 | if (sectsize >= *filesizep) | |
375 | return; | |
376 | ||
377 | mem = xmalloc (sectsize); | |
378 | ||
379 | if (bfd_get_section_contents (abfd, sect, mem, (file_ptr) 0, sectsize)) | |
252b5132 | 380 | { |
06803313 | 381 | got_a_section = TRUE; |
8745eafa | 382 | |
06803313 | 383 | print_strings (filename_and_sizep->filename, NULL, sect->filepos, |
3f5e193b | 384 | 0, sectsize, (char *) mem); |
252b5132 | 385 | } |
06803313 NC |
386 | |
387 | free (mem); | |
252b5132 RH |
388 | } |
389 | ||
390 | /* Scan all of the sections in FILE, and print the strings | |
391 | in the initialized data section(s). | |
392 | ||
b34976b6 AM |
393 | Return TRUE if successful, |
394 | FALSE if not (such as if FILE is not an object file). */ | |
252b5132 | 395 | |
b34976b6 | 396 | static bfd_boolean |
2da42df6 | 397 | strings_object_file (const char *file) |
252b5132 | 398 | { |
06803313 NC |
399 | filename_and_size_t filename_and_size; |
400 | bfd *abfd; | |
401 | ||
402 | abfd = bfd_openr (file, target); | |
252b5132 RH |
403 | |
404 | if (abfd == NULL) | |
8745eafa NC |
405 | /* Treat the file as a non-object file. */ |
406 | return FALSE; | |
252b5132 RH |
407 | |
408 | /* This call is mainly for its side effect of reading in the sections. | |
409 | We follow the traditional behavior of `strings' in that we don't | |
410 | complain if we don't recognize a file to be an object file. */ | |
b34976b6 | 411 | if (!bfd_check_format (abfd, bfd_object)) |
252b5132 RH |
412 | { |
413 | bfd_close (abfd); | |
b34976b6 | 414 | return FALSE; |
252b5132 RH |
415 | } |
416 | ||
b34976b6 | 417 | got_a_section = FALSE; |
06803313 NC |
418 | filename_and_size.filename = file; |
419 | filename_and_size.filesize = 0; | |
420 | bfd_map_over_sections (abfd, strings_a_section, & filename_and_size); | |
252b5132 RH |
421 | |
422 | if (!bfd_close (abfd)) | |
423 | { | |
424 | bfd_nonfatal (file); | |
b34976b6 | 425 | return FALSE; |
252b5132 RH |
426 | } |
427 | ||
428 | return got_a_section; | |
429 | } | |
430 | ||
b34976b6 | 431 | /* Print the strings in FILE. Return TRUE if ok, FALSE if an error occurs. */ |
252b5132 | 432 | |
b34976b6 | 433 | static bfd_boolean |
2da42df6 | 434 | strings_file (char *file) |
252b5132 | 435 | { |
ee2fb9eb JK |
436 | struct stat st; |
437 | ||
438 | /* get_file_size does not support non-S_ISREG files. */ | |
fb5b5478 | 439 | |
ee2fb9eb | 440 | if (stat (file, &st) < 0) |
fb5b5478 JJ |
441 | { |
442 | if (errno == ENOENT) | |
443 | non_fatal (_("'%s': No such file"), file); | |
444 | else | |
445 | non_fatal (_("Warning: could not locate '%s'. reason: %s"), | |
446 | file, strerror (errno)); | |
447 | return FALSE; | |
448 | } | |
f24ddbdd | 449 | |
252b5132 RH |
450 | /* If we weren't told to scan the whole file, |
451 | try to open it as an object file and only look at | |
452 | initialized data sections. If that fails, fall back to the | |
453 | whole file. */ | |
454 | if (!datasection_only || !strings_object_file (file)) | |
455 | { | |
456 | FILE *stream; | |
457 | ||
ee2fb9eb | 458 | stream = fopen (file, FOPEN_RB); |
252b5132 RH |
459 | if (stream == NULL) |
460 | { | |
461 | fprintf (stderr, "%s: ", program_name); | |
462 | perror (file); | |
b34976b6 | 463 | return FALSE; |
252b5132 RH |
464 | } |
465 | ||
ee2fb9eb | 466 | print_strings (file, stream, (file_ptr) 0, 0, 0, (char *) 0); |
252b5132 RH |
467 | |
468 | if (fclose (stream) == EOF) | |
469 | { | |
470 | fprintf (stderr, "%s: ", program_name); | |
471 | perror (file); | |
b34976b6 | 472 | return FALSE; |
252b5132 RH |
473 | } |
474 | } | |
475 | ||
b34976b6 | 476 | return TRUE; |
252b5132 RH |
477 | } |
478 | \f | |
d132876a NC |
479 | /* Read the next character, return EOF if none available. |
480 | Assume that STREAM is positioned so that the next byte read | |
481 | is at address ADDRESS in the file. | |
482 | ||
483 | If STREAM is NULL, do not read from it. | |
484 | The caller can supply a buffer of characters | |
485 | to be processed before the data in STREAM. | |
486 | MAGIC is the address of the buffer and | |
487 | MAGICCOUNT is how many characters are in it. */ | |
488 | ||
489 | static long | |
ee2fb9eb | 490 | get_char (FILE *stream, file_ptr *address, int *magiccount, char **magic) |
d132876a NC |
491 | { |
492 | int c, i; | |
c54e2ec1 | 493 | long r = 0; |
d132876a NC |
494 | |
495 | for (i = 0; i < encoding_bytes; i++) | |
496 | { | |
497 | if (*magiccount) | |
498 | { | |
499 | (*magiccount)--; | |
500 | c = *(*magic)++; | |
501 | } | |
502 | else | |
503 | { | |
504 | if (stream == NULL) | |
505 | return EOF; | |
b7d4af3a JW |
506 | |
507 | /* Only use getc_unlocked if we found a declaration for it. | |
508 | Otherwise, libc is not thread safe by default, and we | |
509 | should not use it. */ | |
510 | ||
511 | #if defined(HAVE_GETC_UNLOCKED) && HAVE_DECL_GETC_UNLOCKED | |
cedd9a58 JJ |
512 | c = getc_unlocked (stream); |
513 | #else | |
d132876a | 514 | c = getc (stream); |
cedd9a58 | 515 | #endif |
d132876a NC |
516 | if (c == EOF) |
517 | return EOF; | |
518 | } | |
519 | ||
520 | (*address)++; | |
c54e2ec1 | 521 | r = (r << 8) | (c & 0xff); |
d132876a NC |
522 | } |
523 | ||
524 | switch (encoding) | |
525 | { | |
c54e2ec1 | 526 | default: |
d132876a NC |
527 | break; |
528 | case 'l': | |
c54e2ec1 | 529 | r = ((r & 0xff) << 8) | ((r & 0xff00) >> 8); |
d132876a NC |
530 | break; |
531 | case 'L': | |
c54e2ec1 AM |
532 | r = (((r & 0xff) << 24) | ((r & 0xff00) << 8) |
533 | | ((r & 0xff0000) >> 8) | ((r & 0xff000000) >> 24)); | |
d132876a NC |
534 | break; |
535 | } | |
536 | ||
d132876a NC |
537 | return r; |
538 | } | |
539 | \f | |
252b5132 RH |
540 | /* Find the strings in file FILENAME, read from STREAM. |
541 | Assume that STREAM is positioned so that the next byte read | |
542 | is at address ADDRESS in the file. | |
543 | Stop reading at address STOP_POINT in the file, if nonzero. | |
544 | ||
545 | If STREAM is NULL, do not read from it. | |
546 | The caller can supply a buffer of characters | |
547 | to be processed before the data in STREAM. | |
548 | MAGIC is the address of the buffer and | |
549 | MAGICCOUNT is how many characters are in it. | |
550 | Those characters come at address ADDRESS and the data in STREAM follow. */ | |
551 | ||
552 | static void | |
ee2fb9eb | 553 | print_strings (const char *filename, FILE *stream, file_ptr address, |
2da42df6 | 554 | int stop_point, int magiccount, char *magic) |
252b5132 | 555 | { |
d132876a | 556 | char *buf = (char *) xmalloc (sizeof (char) * (string_min + 1)); |
252b5132 RH |
557 | |
558 | while (1) | |
559 | { | |
ee2fb9eb | 560 | file_ptr start; |
252b5132 | 561 | int i; |
d132876a | 562 | long c; |
252b5132 RH |
563 | |
564 | /* See if the next `string_min' chars are all graphic chars. */ | |
565 | tryline: | |
566 | if (stop_point && address >= stop_point) | |
567 | break; | |
568 | start = address; | |
569 | for (i = 0; i < string_min; i++) | |
570 | { | |
d132876a NC |
571 | c = get_char (stream, &address, &magiccount, &magic); |
572 | if (c == EOF) | |
68187828 NC |
573 | { |
574 | free (buf); | |
575 | return; | |
576 | } | |
8745eafa | 577 | if (! STRING_ISGRAPHIC (c)) |
252b5132 RH |
578 | /* Found a non-graphic. Try again starting with next char. */ |
579 | goto tryline; | |
580 | buf[i] = c; | |
581 | } | |
582 | ||
583 | /* We found a run of `string_min' graphic characters. Print up | |
e9f87780 | 584 | to the next non-graphic character. */ |
252b5132 RH |
585 | |
586 | if (print_filenames) | |
587 | printf ("%s: ", filename); | |
588 | if (print_addresses) | |
589 | switch (address_radix) | |
590 | { | |
591 | case 8: | |
4c219c2e | 592 | #ifdef HAVE_LONG_LONG |
cedd9a58 | 593 | if (sizeof (start) > sizeof (long)) |
6e3d6dc1 | 594 | { |
4c219c2e | 595 | # ifndef __MSVCRT__ |
6e3d6dc1 | 596 | printf ("%7llo ", (unsigned long long) start); |
4c219c2e | 597 | # else |
6e3d6dc1 | 598 | printf ("%7I64o ", (unsigned long long) start); |
4c219c2e | 599 | # endif |
6e3d6dc1 | 600 | } |
cedd9a58 | 601 | else |
50e3244d | 602 | #elif !BFD_HOST_64BIT_LONG |
cedd9a58 JJ |
603 | if (start != (unsigned long) start) |
604 | printf ("++%7lo ", (unsigned long) start); | |
605 | else | |
cedd9a58 JJ |
606 | #endif |
607 | printf ("%7lo ", (unsigned long) start); | |
252b5132 RH |
608 | break; |
609 | ||
610 | case 10: | |
4c219c2e | 611 | #ifdef HAVE_LONG_LONG |
cedd9a58 | 612 | if (sizeof (start) > sizeof (long)) |
6e3d6dc1 | 613 | { |
4c219c2e | 614 | # ifndef __MSVCRT__ |
6e3d6dc1 | 615 | printf ("%7lld ", (unsigned long long) start); |
4c219c2e | 616 | # else |
6e3d6dc1 | 617 | printf ("%7I64d ", (unsigned long long) start); |
4c219c2e | 618 | # endif |
6e3d6dc1 | 619 | } |
cedd9a58 | 620 | else |
50e3244d | 621 | #elif !BFD_HOST_64BIT_LONG |
cedd9a58 JJ |
622 | if (start != (unsigned long) start) |
623 | printf ("++%7ld ", (unsigned long) start); | |
624 | else | |
cedd9a58 JJ |
625 | #endif |
626 | printf ("%7ld ", (long) start); | |
252b5132 RH |
627 | break; |
628 | ||
629 | case 16: | |
4c219c2e | 630 | #ifdef HAVE_LONG_LONG |
cedd9a58 | 631 | if (sizeof (start) > sizeof (long)) |
6e3d6dc1 | 632 | { |
4c219c2e | 633 | # ifndef __MSVCRT__ |
6e3d6dc1 | 634 | printf ("%7llx ", (unsigned long long) start); |
4c219c2e | 635 | # else |
6e3d6dc1 | 636 | printf ("%7I64x ", (unsigned long long) start); |
4c219c2e | 637 | # endif |
6e3d6dc1 | 638 | } |
cedd9a58 | 639 | else |
50e3244d | 640 | #elif !BFD_HOST_64BIT_LONG |
cedd9a58 | 641 | if (start != (unsigned long) start) |
e9f87780 AM |
642 | printf ("%lx%8.8lx ", (unsigned long) (start >> 32), |
643 | (unsigned long) (start & 0xffffffff)); | |
cedd9a58 | 644 | else |
cedd9a58 JJ |
645 | #endif |
646 | printf ("%7lx ", (unsigned long) start); | |
252b5132 RH |
647 | break; |
648 | } | |
649 | ||
650 | buf[i] = '\0'; | |
651 | fputs (buf, stdout); | |
652 | ||
653 | while (1) | |
654 | { | |
d132876a NC |
655 | c = get_char (stream, &address, &magiccount, &magic); |
656 | if (c == EOF) | |
657 | break; | |
8745eafa | 658 | if (! STRING_ISGRAPHIC (c)) |
252b5132 RH |
659 | break; |
660 | putchar (c); | |
661 | } | |
662 | ||
55edd97b EA |
663 | if (output_separator) |
664 | fputs (output_separator, stdout); | |
665 | else | |
666 | putchar ('\n'); | |
252b5132 | 667 | } |
68187828 | 668 | free (buf); |
252b5132 RH |
669 | } |
670 | \f | |
252b5132 | 671 | static void |
2da42df6 | 672 | usage (FILE *stream, int status) |
252b5132 | 673 | { |
8b53311e NC |
674 | fprintf (stream, _("Usage: %s [option(s)] [file(s)]\n"), program_name); |
675 | fprintf (stream, _(" Display printable strings in [file(s)] (stdin by default)\n")); | |
7fac9594 NC |
676 | fprintf (stream, _(" The options are:\n")); |
677 | ||
678 | if (DEFAULT_STRINGS_ALL) | |
679 | fprintf (stream, _("\ | |
680 | -a - --all Scan the entire file, not just the data section [default]\n\ | |
681 | -d --data Only scan the data sections in the file\n")); | |
682 | else | |
683 | fprintf (stream, _("\ | |
8b53311e | 684 | -a - --all Scan the entire file, not just the data section\n\ |
7fac9594 NC |
685 | -d --data Only scan the data sections in the file [default]\n")); |
686 | ||
687 | fprintf (stream, _("\ | |
8b53311e NC |
688 | -f --print-file-name Print the name of the file before each string\n\ |
689 | -n --bytes=[number] Locate & print any NUL-terminated sequence of at\n\ | |
c904a764 | 690 | -<number> least [number] characters (default 4).\n\ |
d412a550 | 691 | -t --radix={o,d,x} Print the location of the string in base 8, 10 or 16\n\ |
334ac421 | 692 | -w --include-all-whitespace Include all whitespace as valid string characters\n\ |
8b53311e NC |
693 | -o An alias for --radix=o\n\ |
694 | -T --target=<BFDNAME> Specify the binary file format\n\ | |
8745eafa NC |
695 | -e --encoding={s,S,b,l,B,L} Select character size and endianness:\n\ |
696 | s = 7-bit, S = 8-bit, {b,l} = 16-bit, {B,L} = 32-bit\n\ | |
55edd97b | 697 | -s --output-separator=<string> String used to separate strings in output.\n\ |
07012eee | 698 | @<file> Read options from <file>\n\ |
8b53311e | 699 | -h --help Display this information\n\ |
ffbe5983 | 700 | -v -V --version Print the program's version number\n")); |
252b5132 | 701 | list_supported_targets (program_name, stream); |
92f01d61 | 702 | if (REPORT_BUGS_TO[0] && status == 0) |
8ad3436c | 703 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); |
252b5132 RH |
704 | exit (status); |
705 | } |