?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Busybox: Upgrade to 1.21.1 (stable). lsof active.
[tomato.git] / release / src / router / busybox / findutils / find.c
blob2235b504934489d72de0c2b077d9fa6e837307ca
1 /* vi: set sw=4 ts=4: */
2 /*
3 * Mini find implementation for busybox
4 *
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
6 *
7 * Reworked by David Douthitt <n9ubh@callsign.net> and
8 * Matt Kraai <kraai@alumni.carnegiemellon.edu>.
9 *
10 * Licensed under GPLv2, see file LICENSE in this source tree.
11 */
12
13 /* findutils-4.1.20:
14 *
15 * # find file.txt -exec 'echo {}' '{} {}' ';'
16 * find: echo file.txt: No such file or directory
17 * # find file.txt -exec 'echo' '{} {}' '; '
18 * find: missing argument to `-exec'
19 * # find file.txt -exec 'echo {}' '{} {}' ';' junk
20 * find: paths must precede expression
21 * # find file.txt -exec 'echo {}' '{} {}' ';' junk ';'
22 * find: paths must precede expression
23 * # find file.txt -exec 'echo' '{} {}' ';'
24 * file.txt file.txt
25 * (strace: execve("/bin/echo", ["echo", "file.txt file.txt"], [ 30 vars ]))
26 * # find file.txt -exec 'echo' '{} {}' ';' -print -exec pwd ';'
27 * file.txt file.txt
28 * file.txt
29 * /tmp
30 * # find -name '*.c' -o -name '*.h'
31 * [shows files, *.c and *.h intermixed]
32 * # find file.txt -name '*f*' -o -name '*t*'
33 * file.txt
34 * # find file.txt -name '*z*' -o -name '*t*'
35 * file.txt
36 * # find file.txt -name '*f*' -o -name '*z*'
37 * file.txt
38 *
39 * # find t z -name '*t*' -print -o -name '*z*'
40 * t
41 * # find t z t z -name '*t*' -o -name '*z*' -print
42 * z
43 * z
44 * # find t z t z '(' -name '*t*' -o -name '*z*' ')' -o -print
45 * (no output)
46 */
47
48 /* Testing script
49 * ./busybox find "$@" | tee /tmp/bb_find
50 * echo ==================
51 * /path/to/gnu/find "$@" | tee /tmp/std_find
52 * echo ==================
53 * diff -u /tmp/std_find /tmp/bb_find && echo Identical
54 */
55
56 //config:config FIND
57 //config: bool "find"
58 //config: default y
59 //config: help
60 //config: find is used to search your system to find specified files.
61 //config:
62 //config:config FEATURE_FIND_PRINT0
63 //config: bool "Enable -print0: NUL-terminated output"
64 //config: default y
65 //config: depends on FIND
66 //config: help
67 //config: Causes output names to be separated by a NUL character
68 //config: rather than a newline. This allows names that contain
69 //config: newlines and other whitespace to be more easily
70 //config: interpreted by other programs.
71 //config:
72 //config:config FEATURE_FIND_MTIME
73 //config: bool "Enable -mtime: modified time matching"
74 //config: default y
75 //config: depends on FIND
76 //config: help
77 //config: Allow searching based on the modification time of
78 //config: files, in days.
79 //config:
80 //config:config FEATURE_FIND_MMIN
81 //config: bool "Enable -mmin: modified time matching by minutes"
82 //config: default y
83 //config: depends on FIND
84 //config: help
85 //config: Allow searching based on the modification time of
86 //config: files, in minutes.
87 //config:
88 //config:config FEATURE_FIND_PERM
89 //config: bool "Enable -perm: permissions matching"
90 //config: default y
91 //config: depends on FIND
92 //config: help
93 //config: Enable searching based on file permissions.
94 //config:
95 //config:config FEATURE_FIND_TYPE
96 //config: bool "Enable -type: file type matching (file/dir/link/...)"
97 //config: default y
98 //config: depends on FIND
99 //config: help
100 //config: Enable searching based on file type (file,
101 //config: directory, socket, device, etc.).
102 //config:
103 //config:config FEATURE_FIND_XDEV
104 //config: bool "Enable -xdev: 'stay in filesystem'"
105 //config: default y
106 //config: depends on FIND
107 //config: help
108 //config: This option allows find to restrict searches to a single filesystem.
109 //config:
110 //config:config FEATURE_FIND_MAXDEPTH
111 //config: bool "Enable -mindepth N and -maxdepth N"
112 //config: default y
113 //config: depends on FIND
114 //config: help
115 //config: This option enables -mindepth N and -maxdepth N option.
116 //config:
117 //config:config FEATURE_FIND_NEWER
118 //config: bool "Enable -newer: compare file modification times"
119 //config: default y
120 //config: depends on FIND
121 //config: help
122 //config: Support the 'find -newer' option for finding any files which have
123 //config: modification time that is more recent than the specified FILE.
124 //config:
125 //config:config FEATURE_FIND_INUM
126 //config: bool "Enable -inum: inode number matching"
127 //config: default y
128 //config: depends on FIND
129 //config: help
130 //config: Support the 'find -inum' option for searching by inode number.
131 //config:
132 //config:config FEATURE_FIND_EXEC
133 //config: bool "Enable -exec: execute commands"
134 //config: default y
135 //config: depends on FIND
136 //config: help
137 //config: Support the 'find -exec' option for executing commands based upon
138 //config: the files matched.
139 //config:
140 //config:config FEATURE_FIND_USER
141 //config: bool "Enable -user: username/uid matching"
142 //config: default y
143 //config: depends on FIND
144 //config: help
145 //config: Support the 'find -user' option for searching by username or uid.
146 //config:
147 //config:config FEATURE_FIND_GROUP
148 //config: bool "Enable -group: group/gid matching"
149 //config: default y
150 //config: depends on FIND
151 //config: help
152 //config: Support the 'find -group' option for searching by group name or gid.
153 //config:
154 //config:config FEATURE_FIND_NOT
155 //config: bool "Enable the 'not' (!) operator"
156 //config: default y
157 //config: depends on FIND
158 //config: help
159 //config: Support the '!' operator to invert the test results.
160 //config: If 'Enable full-blown desktop' is enabled, then will also support
161 //config: the non-POSIX notation '-not'.
162 //config:
163 //config:config FEATURE_FIND_DEPTH
164 //config: bool "Enable -depth"
165 //config: default y
166 //config: depends on FIND
167 //config: help
168 //config: Process each directory's contents before the directory itself.
169 //config:
170 //config:config FEATURE_FIND_PAREN
171 //config: bool "Enable parens in options"
172 //config: default y
173 //config: depends on FIND
174 //config: help
175 //config: Enable usage of parens '(' to specify logical order of arguments.
176 //config:
177 //config:config FEATURE_FIND_SIZE
178 //config: bool "Enable -size: file size matching"
179 //config: default y
180 //config: depends on FIND
181 //config: help
182 //config: Support the 'find -size' option for searching by file size.
183 //config:
184 //config:config FEATURE_FIND_PRUNE
185 //config: bool "Enable -prune: exclude subdirectories"
186 //config: default y
187 //config: depends on FIND
188 //config: help
189 //config: If the file is a directory, dont descend into it. Useful for
190 //config: exclusion .svn and CVS directories.
191 //config:
192 //config:config FEATURE_FIND_DELETE
193 //config: bool "Enable -delete: delete files/dirs"
194 //config: default y
195 //config: depends on FIND && FEATURE_FIND_DEPTH
196 //config: help
197 //config: Support the 'find -delete' option for deleting files and directories.
198 //config: WARNING: This option can do much harm if used wrong. Busybox will not
199 //config: try to protect the user from doing stupid things. Use with care.
200 //config:
201 //config:config FEATURE_FIND_PATH
202 //config: bool "Enable -path: match pathname with shell pattern"
203 //config: default y
204 //config: depends on FIND
205 //config: help
206 //config: The -path option matches whole pathname instead of just filename.
207 //config:
208 //config:config FEATURE_FIND_REGEX
209 //config: bool "Enable -regex: match pathname with regex"
210 //config: default y
211 //config: depends on FIND
212 //config: help
213 //config: The -regex option matches whole pathname against regular expression.
214 //config:
215 //config:config FEATURE_FIND_CONTEXT
216 //config: bool "Enable -context: security context matching"
217 //config: default n
218 //config: depends on FIND && SELINUX
219 //config: help
220 //config: Support the 'find -context' option for matching security context.
221 //config:
222 //config:config FEATURE_FIND_LINKS
223 //config: bool "Enable -links: link count matching"
224 //config: default y
225 //config: depends on FIND
226 //config: help
227 //config: Support the 'find -links' option for matching number of links.
228
229 //applet:IF_FIND(APPLET_NOEXEC(find, find, BB_DIR_USR_BIN, BB_SUID_DROP, find))
230
231 //kbuild:lib-$(CONFIG_FIND) += find.o
232
233 //usage:#define find_trivial_usage
234 //usage: "[PATH]... [OPTIONS] [ACTIONS]"
235 //usage:#define find_full_usage "\n\n"
236 //usage: "Search for files and perform actions on them.\n"
237 //usage: "First failed action stops processing of current file.\n"
238 //usage: "Defaults: PATH is current directory, action is '-print'\n"
239 //usage: "\n -follow Follow symlinks"
240 //usage: IF_FEATURE_FIND_XDEV(
241 //usage: "\n -xdev Don't descend directories on other filesystems"
242 //usage: )
243 //usage: IF_FEATURE_FIND_MAXDEPTH(
244 //usage: "\n -maxdepth N Descend at most N levels. -maxdepth 0 applies"
245 //usage: "\n actions to command line arguments only"
246 //usage: "\n -mindepth N Don't act on first N levels"
247 //usage: )
248 //usage: IF_FEATURE_FIND_DEPTH(
249 //usage: "\n -depth Act on directory *after* traversing it"
250 //usage: )
251 //usage: "\n"
252 //usage: "\nActions:"
253 //usage: IF_FEATURE_FIND_PAREN(
254 //usage: "\n ( ACTIONS ) Group actions for -o / -a"
255 //usage: )
256 //usage: IF_FEATURE_FIND_NOT(
257 //usage: "\n ! ACT Invert ACT's success/failure"
258 //usage: )
259 //usage: "\n ACT1 [-a] ACT2 If ACT1 fails, stop, else do ACT2"
260 //usage: "\n ACT1 -o ACT2 If ACT1 succeeds, stop, else do ACT2"
261 //usage: "\n Note: -a has higher priority than -o"
262 //usage: "\n -name PATTERN Match file name (w/o directory name) to PATTERN"
263 //usage: "\n -iname PATTERN Case insensitive -name"
264 //usage: IF_FEATURE_FIND_PATH(
265 //usage: "\n -path PATTERN Match path to PATTERN"
266 //usage: "\n -ipath PATTERN Case insensitive -path"
267 //usage: )
268 //usage: IF_FEATURE_FIND_REGEX(
269 //usage: "\n -regex PATTERN Match path to regex PATTERN"
270 //usage: )
271 //usage: IF_FEATURE_FIND_TYPE(
272 //usage: "\n -type X File type is X (one of: f,d,l,b,c,...)"
273 //usage: )
274 //usage: IF_FEATURE_FIND_PERM(
275 //usage: "\n -perm MASK At least one mask bit (+MASK), all bits (-MASK),"
276 //usage: "\n or exactly MASK bits are set in file's mode"
277 //usage: )
278 //usage: IF_FEATURE_FIND_MTIME(
279 //usage: "\n -mtime DAYS mtime is greater than (+N), less than (-N),"
280 //usage: "\n or exactly N days in the past"
281 //usage: )
282 //usage: IF_FEATURE_FIND_MMIN(
283 //usage: "\n -mmin MINS mtime is greater than (+N), less than (-N),"
284 //usage: "\n or exactly N minutes in the past"
285 //usage: )
286 //usage: IF_FEATURE_FIND_NEWER(
287 //usage: "\n -newer FILE mtime is more recent than FILE's"
288 //usage: )
289 //usage: IF_FEATURE_FIND_INUM(
290 //usage: "\n -inum N File has inode number N"
291 //usage: )
292 //usage: IF_FEATURE_FIND_USER(
293 //usage: "\n -user NAME/ID File is owned by given user"
294 //usage: )
295 //usage: IF_FEATURE_FIND_GROUP(
296 //usage: "\n -group NAME/ID File is owned by given group"
297 //usage: )
298 //usage: IF_FEATURE_FIND_SIZE(
299 //usage: "\n -size N[bck] File size is N (c:bytes,k:kbytes,b:512 bytes(def.))"
300 //usage: "\n +/-N: file size is bigger/smaller than N"
301 //usage: )
302 //usage: IF_FEATURE_FIND_LINKS(
303 //usage: "\n -links N Number of links is greater than (+N), less than (-N),"
304 //usage: "\n or exactly N"
305 //usage: )
306 //usage: IF_FEATURE_FIND_CONTEXT(
307 //usage: "\n -context CTX File has specified security context"
308 //usage: )
309 //usage: IF_FEATURE_FIND_PRUNE(
310 //usage: "\n -prune If current file is directory, don't descend into it"
311 //usage: )
312 //usage: "\nIf none of the following actions is specified, -print is assumed"
313 //usage: "\n -print Print file name"
314 //usage: IF_FEATURE_FIND_PRINT0(
315 //usage: "\n -print0 Print file name, NUL terminated"
316 //usage: )
317 //usage: IF_FEATURE_FIND_EXEC(
318 //usage: "\n -exec CMD ARG ; Run CMD with all instances of {} replaced by"
319 //usage: "\n file name. Fails if CMD exits with nonzero"
320 //usage: )
321 //usage: IF_FEATURE_FIND_DELETE(
322 //usage: "\n -delete Delete current file/directory. Turns on -depth option"
323 //usage: )
324 //usage:
325 //usage:#define find_example_usage
326 //usage: "$ find / -name passwd\n"
327 //usage: "/etc/passwd\n"
328
329 #include <fnmatch.h>
330 #include "libbb.h"
331 #if ENABLE_FEATURE_FIND_REGEX
332 # include "xregex.h"
333 #endif
334 /* GNUism: */
335 #ifndef FNM_CASEFOLD
336 # define FNM_CASEFOLD 0
337 #endif
338
339 #define dbg(...) ((void)0)
340 /* #define dbg(...) bb_error_msg(__VA_ARGS__) */
341
342 /* This is a NOEXEC applet. Be very careful! */
343
344
345 typedef int (*action_fp)(const char *fileName, const struct stat *statbuf, void *) FAST_FUNC;
346
347 typedef struct {
348 action_fp f;
349 #if ENABLE_FEATURE_FIND_NOT
350 bool invert;
351 #endif
352 } action;
353
354 #define ACTS(name, ...) typedef struct { action a; __VA_ARGS__ } action_##name;
355 #define ACTF(name) \
356 static int FAST_FUNC func_##name(const char *fileName UNUSED_PARAM, \
357 const struct stat *statbuf UNUSED_PARAM, \
358 action_##name* ap UNUSED_PARAM)
359
360 ACTS(print)
361 ACTS(name, const char *pattern; bool iname;)
362 IF_FEATURE_FIND_PATH( ACTS(path, const char *pattern; bool ipath;))
363 IF_FEATURE_FIND_REGEX( ACTS(regex, regex_t compiled_pattern;))
364 IF_FEATURE_FIND_PRINT0( ACTS(print0))
365 IF_FEATURE_FIND_TYPE( ACTS(type, int type_mask;))
366 IF_FEATURE_FIND_PERM( ACTS(perm, char perm_char; mode_t perm_mask;))
367 IF_FEATURE_FIND_MTIME( ACTS(mtime, char mtime_char; unsigned mtime_days;))
368 IF_FEATURE_FIND_MMIN( ACTS(mmin, char mmin_char; unsigned mmin_mins;))
369 IF_FEATURE_FIND_NEWER( ACTS(newer, time_t newer_mtime;))
370 IF_FEATURE_FIND_INUM( ACTS(inum, ino_t inode_num;))
371 IF_FEATURE_FIND_USER( ACTS(user, uid_t uid;))
372 IF_FEATURE_FIND_SIZE( ACTS(size, char size_char; off_t size;))
373 IF_FEATURE_FIND_CONTEXT(ACTS(context, security_context_t context;))
374 IF_FEATURE_FIND_PAREN( ACTS(paren, action ***subexpr;))
375 IF_FEATURE_FIND_PRUNE( ACTS(prune))
376 IF_FEATURE_FIND_DELETE( ACTS(delete))
377 IF_FEATURE_FIND_EXEC( ACTS(exec, char **exec_argv; unsigned *subst_count; int exec_argc;))
378 IF_FEATURE_FIND_GROUP( ACTS(group, gid_t gid;))
379 IF_FEATURE_FIND_LINKS( ACTS(links, char links_char; int links_count;))
380
381 struct globals {
382 IF_FEATURE_FIND_XDEV(dev_t *xdev_dev;)
383 IF_FEATURE_FIND_XDEV(int xdev_count;)
384 #if ENABLE_FEATURE_FIND_MAXDEPTH
385 int minmaxdepth[2];
386 #endif
387 action ***actions;
388 smallint need_print;
389 smallint xdev_on;
390 recurse_flags_t recurse_flags;
391 } FIX_ALIASING;
392 #define G (*(struct globals*)&bb_common_bufsiz1)
393 #define INIT_G() do { \
394 struct G_sizecheck { \
395 char G_sizecheck[sizeof(G) > COMMON_BUFSIZE ? -1 : 1]; \
396 }; \
397 /* we have to zero it out because of NOEXEC */ \
398 memset(&G, 0, sizeof(G)); \
399 IF_FEATURE_FIND_MAXDEPTH(G.minmaxdepth[1] = INT_MAX;) \
400 G.need_print = 1; \
401 G.recurse_flags = ACTION_RECURSE; \
402 } while (0)
403
404 #if ENABLE_FEATURE_FIND_EXEC
405 static unsigned count_subst(const char *str)
406 {
407 unsigned count = 0;
408 while ((str = strstr(str, "{}")) != NULL) {
409 count++;
410 str++;
411 }
412 return count;
413 }
414
415
416 static char* subst(const char *src, unsigned count, const char* filename)
417 {
418 char *buf, *dst, *end;
419 size_t flen = strlen(filename);
420 /* we replace each '{}' with filename: growth by strlen-2 */
421 buf = dst = xmalloc(strlen(src) + count*(flen-2) + 1);
422 while ((end = strstr(src, "{}"))) {
423 memcpy(dst, src, end - src);
424 dst += end - src;
425 src = end + 2;
426 memcpy(dst, filename, flen);
427 dst += flen;
428 }
429 strcpy(dst, src);
430 return buf;
431 }
432 #endif
433
434 /* Return values of ACTFs ('action functions') are a bit mask:
435 * bit 1=1: prune (use SKIP constant for setting it)
436 * bit 0=1: matched successfully (TRUE)
437 */
438
439 static int exec_actions(action ***appp, const char *fileName, const struct stat *statbuf)
440 {
441 int cur_group;
442 int cur_action;
443 int rc = 0;
444 action **app, *ap;
445
446 /* "action group" is a set of actions ANDed together.
447 * groups are ORed together.
448 * We simply evaluate each group until we find one in which all actions
449 * succeed. */
450
451 /* -prune is special: if it is encountered, then we won't
452 * descend into current directory. It doesn't matter whether
453 * action group (in which -prune sits) will succeed or not:
454 * find * -prune -name 'f*' -o -name 'm*' -- prunes every dir
455 * find * -name 'f*' -o -prune -name 'm*' -- prunes all dirs
456 * not starting with 'f' */
457
458 /* We invert TRUE bit (bit 0). Now 1 there means 'failure'.
459 * and bitwise OR in "rc |= TRUE ^ ap->f()" will:
460 * (1) make SKIP (-prune) bit stick; and (2) detect 'failure'.
461 * On return, bit is restored. */
462
463 cur_group = -1;
464 while ((app = appp[++cur_group]) != NULL) {
465 rc &= ~TRUE; /* 'success' so far, clear TRUE bit */
466 cur_action = -1;
467 while (1) {
468 ap = app[++cur_action];
469 if (!ap) /* all actions in group were successful */
470 return rc ^ TRUE; /* restore TRUE bit */
471 rc |= TRUE ^ ap->f(fileName, statbuf, ap);
472 #if ENABLE_FEATURE_FIND_NOT
473 if (ap->invert) rc ^= TRUE;
474 #endif
475 dbg("grp %d action %d rc:0x%x", cur_group, cur_action, rc);
476 if (rc & TRUE) /* current group failed, try next */
477 break;
478 }
479 }
480 dbg("returning:0x%x", rc ^ TRUE);
481 return rc ^ TRUE; /* restore TRUE bit */
482 }
483
484
485 #if !FNM_CASEFOLD
486 static char *strcpy_upcase(char *dst, const char *src)
487 {
488 char *d = dst;
489 while (1) {
490 unsigned char ch = *src++;
491 if (ch >= 'a' && ch <= 'z')
492 ch -= ('a' - 'A');
493 *d++ = ch;
494 if (ch == '\0')
495 break;
496 }
497 return dst;
498 }
499 #endif
500
501 ACTF(name)
502 {
503 const char *tmp = bb_basename(fileName);
504 if (tmp != fileName && *tmp == '\0') {
505 /* "foo/bar/". Oh no... go back to 'b' */
506 tmp--;
507 while (tmp != fileName && *--tmp != '/')
508 continue;
509 if (*tmp == '/')
510 tmp++;
511 }
512 /* Was using FNM_PERIOD flag too,
513 * but somewhere between 4.1.20 and 4.4.0 GNU find stopped using it.
514 * find -name '*foo' should match .foo too:
515 */
516 #if FNM_CASEFOLD
517 return fnmatch(ap->pattern, tmp, (ap->iname ? FNM_CASEFOLD : 0)) == 0;
518 #else
519 if (ap->iname)
520 tmp = strcpy_upcase(alloca(strlen(tmp) + 1), tmp);
521 return fnmatch(ap->pattern, tmp, 0) == 0;
522 #endif
523 }
524
525 #if ENABLE_FEATURE_FIND_PATH
526 ACTF(path)
527 {
528 # if FNM_CASEFOLD
529 return fnmatch(ap->pattern, fileName, (ap->ipath ? FNM_CASEFOLD : 0)) == 0;
530 # else
531 if (ap->ipath)
532 fileName = strcpy_upcase(alloca(strlen(fileName) + 1), fileName);
533 return fnmatch(ap->pattern, fileName, 0) == 0;
534 # endif
535 }
536 #endif
537 #if ENABLE_FEATURE_FIND_REGEX
538 ACTF(regex)
539 {
540 regmatch_t match;
541 if (regexec(&ap->compiled_pattern, fileName, 1, &match, 0 /*eflags*/))
542 return 0; /* no match */
543 if (match.rm_so)
544 return 0; /* match doesn't start at pos 0 */
545 if (fileName[match.rm_eo])
546 return 0; /* match doesn't end exactly at end of pathname */
547 return 1;
548 }
549 #endif
550 #if ENABLE_FEATURE_FIND_TYPE
551 ACTF(type)
552 {
553 return ((statbuf->st_mode & S_IFMT) == ap->type_mask);
554 }
555 #endif
556 #if ENABLE_FEATURE_FIND_PERM
557 ACTF(perm)
558 {
559 /* -perm +mode: at least one of perm_mask bits are set */
560 if (ap->perm_char == '+')
561 return (statbuf->st_mode & ap->perm_mask) != 0;
562 /* -perm -mode: all of perm_mask are set */
563 if (ap->perm_char == '-')
564 return (statbuf->st_mode & ap->perm_mask) == ap->perm_mask;
565 /* -perm mode: file mode must match perm_mask */
566 return (statbuf->st_mode & 07777) == ap->perm_mask;
567 }
568 #endif
569 #if ENABLE_FEATURE_FIND_MTIME
570 ACTF(mtime)
571 {
572 time_t file_age = time(NULL) - statbuf->st_mtime;
573 time_t mtime_secs = ap->mtime_days * 24*60*60;
574 if (ap->mtime_char == '+')
575 return file_age >= mtime_secs + 24*60*60;
576 if (ap->mtime_char == '-')
577 return file_age < mtime_secs;
578 /* just numeric mtime */
579 return file_age >= mtime_secs && file_age < (mtime_secs + 24*60*60);
580 }
581 #endif
582 #if ENABLE_FEATURE_FIND_MMIN
583 ACTF(mmin)
584 {
585 time_t file_age = time(NULL) - statbuf->st_mtime;
586 time_t mmin_secs = ap->mmin_mins * 60;
587 if (ap->mmin_char == '+')
588 return file_age >= mmin_secs + 60;
589 if (ap->mmin_char == '-')
590 return file_age < mmin_secs;
591 /* just numeric mmin */
592 return file_age >= mmin_secs && file_age < (mmin_secs + 60);
593 }
594 #endif
595 #if ENABLE_FEATURE_FIND_NEWER
596 ACTF(newer)
597 {
598 return (ap->newer_mtime < statbuf->st_mtime);
599 }
600 #endif
601 #if ENABLE_FEATURE_FIND_INUM
602 ACTF(inum)
603 {
604 return (statbuf->st_ino == ap->inode_num);
605 }
606 #endif
607 #if ENABLE_FEATURE_FIND_EXEC
608 ACTF(exec)
609 {
610 int i, rc;
611 #if ENABLE_USE_PORTABLE_CODE
612 char **argv = alloca(sizeof(char*) * (ap->exec_argc + 1));
613 #else /* gcc 4.3.1 generates smaller code: */
614 char *argv[ap->exec_argc + 1];
615 #endif
616 for (i = 0; i < ap->exec_argc; i++)
617 argv[i] = subst(ap->exec_argv[i], ap->subst_count[i], fileName);
618 argv[i] = NULL; /* terminate the list */
619
620 rc = spawn_and_wait(argv);
621 if (rc < 0)
622 bb_simple_perror_msg(argv[0]);
623
624 i = 0;
625 while (argv[i])
626 free(argv[i++]);
627 return rc == 0; /* return 1 if exitcode 0 */
628 }
629 #endif
630 #if ENABLE_FEATURE_FIND_USER
631 ACTF(user)
632 {
633 return (statbuf->st_uid == ap->uid);
634 }
635 #endif
636 #if ENABLE_FEATURE_FIND_GROUP
637 ACTF(group)
638 {
639 return (statbuf->st_gid == ap->gid);
640 }
641 #endif
642 #if ENABLE_FEATURE_FIND_PRINT0
643 ACTF(print0)
644 {
645 printf("%s%c", fileName, '\0');
646 return TRUE;
647 }
648 #endif
649 ACTF(print)
650 {
651 puts(fileName);
652 return TRUE;
653 }
654 #if ENABLE_FEATURE_FIND_PAREN
655 ACTF(paren)
656 {
657 return exec_actions(ap->subexpr, fileName, statbuf);
658 }
659 #endif
660 #if ENABLE_FEATURE_FIND_SIZE
661 ACTF(size)
662 {
663 if (ap->size_char == '+')
664 return statbuf->st_size > ap->size;
665 if (ap->size_char == '-')
666 return statbuf->st_size < ap->size;
667 return statbuf->st_size == ap->size;
668 }
669 #endif
670 #if ENABLE_FEATURE_FIND_PRUNE
671 /*
672 * -prune: if -depth is not given, return true and do not descend
673 * current dir; if -depth is given, return false with no effect.
674 * Example:
675 * find dir -name 'asm-*' -prune -o -name '*.[chS]' -print
676 */
677 ACTF(prune)
678 {
679 return SKIP + TRUE;
680 }
681 #endif
682 #if ENABLE_FEATURE_FIND_DELETE
683 ACTF(delete)
684 {
685 int rc;
686 if (S_ISDIR(statbuf->st_mode)) {
687 rc = rmdir(fileName);
688 } else {
689 rc = unlink(fileName);
690 }
691 if (rc < 0)
692 bb_simple_perror_msg(fileName);
693 return TRUE;
694 }
695 #endif
696 #if ENABLE_FEATURE_FIND_CONTEXT
697 ACTF(context)
698 {
699 security_context_t con;
700 int rc;
701
702 if (G.recurse_flags & ACTION_FOLLOWLINKS) {
703 rc = getfilecon(fileName, &con);
704 } else {
705 rc = lgetfilecon(fileName, &con);
706 }
707 if (rc < 0)
708 return FALSE;
709 rc = strcmp(ap->context, con);
710 freecon(con);
711 return rc == 0;
712 }
713 #endif
714 #if ENABLE_FEATURE_FIND_LINKS
715 ACTF(links)
716 {
717 switch(ap->links_char) {
718 case '-' : return (statbuf->st_nlink < ap->links_count);
719 case '+' : return (statbuf->st_nlink > ap->links_count);
720 default: return (statbuf->st_nlink == ap->links_count);
721 }
722 }
723 #endif
724
725 static int FAST_FUNC fileAction(const char *fileName,
726 struct stat *statbuf,
727 void *userData UNUSED_PARAM,
728 int depth IF_NOT_FEATURE_FIND_MAXDEPTH(UNUSED_PARAM))
729 {
730 int r;
731 int same_fs = 1;
732
733 #if ENABLE_FEATURE_FIND_XDEV
734 if (S_ISDIR(statbuf->st_mode) && G.xdev_count) {
735 int i;
736 for (i = 0; i < G.xdev_count; i++) {
737 if (G.xdev_dev[i] == statbuf->st_dev)
738 goto found;
739 }
740 //bb_error_msg("'%s': not same fs", fileName);
741 same_fs = 0;
742 found: ;
743 }
744 #endif
745
746 #if ENABLE_FEATURE_FIND_MAXDEPTH
747 if (depth < G.minmaxdepth[0]) {
748 if (same_fs)
749 return TRUE; /* skip this, continue recursing */
750 return SKIP; /* stop recursing */
751 }
752 if (depth > G.minmaxdepth[1])
753 return SKIP; /* stop recursing */
754 #endif
755
756 r = exec_actions(G.actions, fileName, statbuf);
757 /* Had no explicit -print[0] or -exec? then print */
758 if ((r & TRUE) && G.need_print)
759 puts(fileName);
760
761 #if ENABLE_FEATURE_FIND_MAXDEPTH
762 if (S_ISDIR(statbuf->st_mode)) {
763 if (depth == G.minmaxdepth[1])
764 return SKIP;
765 }
766 #endif
767 /* -xdev stops on mountpoints, but AFTER mountpoit itself
768 * is processed as usual */
769 if (!same_fs) {
770 return SKIP;
771 }
772
773 /* Cannot return 0: our caller, recursive_action(),
774 * will perror() and skip dirs (if called on dir) */
775 return (r & SKIP) ? SKIP : TRUE;
776 }
777
778
779 #if ENABLE_FEATURE_FIND_TYPE
780 static int find_type(const char *type)
781 {
782 int mask = 0;
783
784 if (*type == 'b')
785 mask = S_IFBLK;
786 else if (*type == 'c')
787 mask = S_IFCHR;
788 else if (*type == 'd')
789 mask = S_IFDIR;
790 else if (*type == 'p')
791 mask = S_IFIFO;
792 else if (*type == 'f')
793 mask = S_IFREG;
794 else if (*type == 'l')
795 mask = S_IFLNK;
796 else if (*type == 's')
797 mask = S_IFSOCK;
798
799 if (mask == 0 || type[1] != '\0')
800 bb_error_msg_and_die(bb_msg_invalid_arg, type, "-type");
801
802 return mask;
803 }
804 #endif
805
806 #if ENABLE_FEATURE_FIND_PERM \
807 || ENABLE_FEATURE_FIND_MTIME || ENABLE_FEATURE_FIND_MMIN \
808 || ENABLE_FEATURE_FIND_SIZE || ENABLE_FEATURE_FIND_LINKS
809 static const char* plus_minus_num(const char* str)
810 {
811 if (*str == '-' || *str == '+')
812 str++;
813 return str;
814 }
815 #endif
816
817 static action*** parse_params(char **argv)
818 {
819 enum {
820 OPT_FOLLOW ,
821 IF_FEATURE_FIND_XDEV( OPT_XDEV ,)
822 IF_FEATURE_FIND_DEPTH( OPT_DEPTH ,)
823 PARM_a ,
824 PARM_o ,
825 IF_FEATURE_FIND_NOT( PARM_char_not ,)
826 #if ENABLE_DESKTOP
827 PARM_and ,
828 PARM_or ,
829 IF_FEATURE_FIND_NOT( PARM_not ,)
830 #endif
831 PARM_print ,
832 IF_FEATURE_FIND_PRINT0( PARM_print0 ,)
833 IF_FEATURE_FIND_PRUNE( PARM_prune ,)
834 IF_FEATURE_FIND_DELETE( PARM_delete ,)
835 IF_FEATURE_FIND_EXEC( PARM_exec ,)
836 IF_FEATURE_FIND_PAREN( PARM_char_brace,)
837 /* All options/actions starting from here require argument */
838 PARM_name ,
839 PARM_iname ,
840 IF_FEATURE_FIND_PATH( PARM_path ,)
841 #if ENABLE_DESKTOP
842 /* -wholename is a synonym for -path */
843 /* We support it because Linux kernel's "make tags" uses it */
844 IF_FEATURE_FIND_PATH( PARM_wholename ,)
845 #endif
846 IF_FEATURE_FIND_PATH( PARM_ipath ,)
847 IF_FEATURE_FIND_REGEX( PARM_regex ,)
848 IF_FEATURE_FIND_TYPE( PARM_type ,)
849 IF_FEATURE_FIND_PERM( PARM_perm ,)
850 IF_FEATURE_FIND_MTIME( PARM_mtime ,)
851 IF_FEATURE_FIND_MMIN( PARM_mmin ,)
852 IF_FEATURE_FIND_NEWER( PARM_newer ,)
853 IF_FEATURE_FIND_INUM( PARM_inum ,)
854 IF_FEATURE_FIND_USER( PARM_user ,)
855 IF_FEATURE_FIND_GROUP( PARM_group ,)
856 IF_FEATURE_FIND_SIZE( PARM_size ,)
857 IF_FEATURE_FIND_CONTEXT(PARM_context ,)
858 IF_FEATURE_FIND_LINKS( PARM_links ,)
859 IF_FEATURE_FIND_MAXDEPTH(OPT_MINDEPTH,OPT_MAXDEPTH,)
860 };
861
862 static const char params[] ALIGN1 =
863 "-follow\0"
864 IF_FEATURE_FIND_XDEV( "-xdev\0" )
865 IF_FEATURE_FIND_DEPTH( "-depth\0" )
866 "-a\0"
867 "-o\0"
868 IF_FEATURE_FIND_NOT( "!\0" )
869 #if ENABLE_DESKTOP
870 "-and\0"
871 "-or\0"
872 IF_FEATURE_FIND_NOT( "-not\0" )
873 #endif
874 "-print\0"
875 IF_FEATURE_FIND_PRINT0( "-print0\0" )
876 IF_FEATURE_FIND_PRUNE( "-prune\0" )
877 IF_FEATURE_FIND_DELETE( "-delete\0" )
878 IF_FEATURE_FIND_EXEC( "-exec\0" )
879 IF_FEATURE_FIND_PAREN( "(\0" )
880 /* All options/actions starting from here require argument */
881 "-name\0"
882 "-iname\0"
883 IF_FEATURE_FIND_PATH( "-path\0" )
884 #if ENABLE_DESKTOP
885 IF_FEATURE_FIND_PATH( "-wholename\0")
886 #endif
887 IF_FEATURE_FIND_PATH( "-ipath\0" )
888 IF_FEATURE_FIND_REGEX( "-regex\0" )
889 IF_FEATURE_FIND_TYPE( "-type\0" )
890 IF_FEATURE_FIND_PERM( "-perm\0" )
891 IF_FEATURE_FIND_MTIME( "-mtime\0" )
892 IF_FEATURE_FIND_MMIN( "-mmin\0" )
893 IF_FEATURE_FIND_NEWER( "-newer\0" )
894 IF_FEATURE_FIND_INUM( "-inum\0" )
895 IF_FEATURE_FIND_USER( "-user\0" )
896 IF_FEATURE_FIND_GROUP( "-group\0" )
897 IF_FEATURE_FIND_SIZE( "-size\0" )
898 IF_FEATURE_FIND_CONTEXT("-context\0")
899 IF_FEATURE_FIND_LINKS( "-links\0" )
900 IF_FEATURE_FIND_MAXDEPTH("-mindepth\0""-maxdepth\0")
901 ;
902
903 action*** appp;
904 unsigned cur_group = 0;
905 unsigned cur_action = 0;
906 IF_FEATURE_FIND_NOT( bool invert_flag = 0; )
907
908 /* This is the only place in busybox where we use nested function.
909 * So far more standard alternatives were bigger. */
910 /* Auto decl suppresses "func without a prototype" warning: */
911 auto action* alloc_action(int sizeof_struct, action_fp f);
912 action* alloc_action(int sizeof_struct, action_fp f)
913 {
914 action *ap;
915 appp[cur_group] = xrealloc(appp[cur_group], (cur_action+2) * sizeof(*appp));
916 appp[cur_group][cur_action++] = ap = xzalloc(sizeof_struct);
917 appp[cur_group][cur_action] = NULL;
918 ap->f = f;
919 IF_FEATURE_FIND_NOT( ap->invert = invert_flag; )
920 IF_FEATURE_FIND_NOT( invert_flag = 0; )
921 return ap;
922 }
923
924 #define ALLOC_ACTION(name) (action_##name*)alloc_action(sizeof(action_##name), (action_fp) func_##name)
925
926 appp = xzalloc(2 * sizeof(appp[0])); /* appp[0],[1] == NULL */
927
928 while (*argv) {
929 const char *arg = argv[0];
930 int parm = index_in_strings(params, arg);
931 const char *arg1 = argv[1];
932
933 dbg("arg:'%s' arg1:'%s' parm:%d PARM_type:%d", arg, arg1, parm, PARM_type);
934
935 if (parm >= PARM_name) {
936 /* All options/actions starting from -name require argument */
937 if (!arg1)
938 bb_error_msg_and_die(bb_msg_requires_arg, arg);
939 argv++;
940 }
941
942 /* We can use big switch() here, but on i386
943 * it doesn't give smaller code. Other arches? */
944
945 /* Options always return true. They always take effect
946 * rather than being processed only when their place in the
947 * expression is reached.
948 */
949 /* Options */
950 if (parm == OPT_FOLLOW) {
951 dbg("follow enabled: %d", __LINE__);
952 G.recurse_flags |= ACTION_FOLLOWLINKS | ACTION_DANGLING_OK;
953 }
954 #if ENABLE_FEATURE_FIND_XDEV
955 else if (parm == OPT_XDEV) {
956 dbg("%d", __LINE__);
957 G.xdev_on = 1;
958 }
959 #endif
960 #if ENABLE_FEATURE_FIND_MAXDEPTH
961 else if (parm == OPT_MINDEPTH || parm == OPT_MINDEPTH + 1) {
962 dbg("%d", __LINE__);
963 G.minmaxdepth[parm - OPT_MINDEPTH] = xatoi_positive(arg1);
964 }
965 #endif
966 #if ENABLE_FEATURE_FIND_DEPTH
967 else if (parm == OPT_DEPTH) {
968 dbg("%d", __LINE__);
969 G.recurse_flags |= ACTION_DEPTHFIRST;
970 }
971 #endif
972 /* Actions are grouped by operators
973 * ( expr ) Force precedence
974 * ! expr True if expr is false
975 * -not expr Same as ! expr
976 * expr1 [-a[nd]] expr2 And; expr2 is not evaluated if expr1 is false
977 * expr1 -o[r] expr2 Or; expr2 is not evaluated if expr1 is true
978 * expr1 , expr2 List; both expr1 and expr2 are always evaluated
979 * We implement: (), -a, -o
980 */
981 /* Operators */
982 else if (parm == PARM_a IF_DESKTOP(|| parm == PARM_and)) {
983 dbg("%d", __LINE__);
984 /* no further special handling required */
985 }
986 else if (parm == PARM_o IF_DESKTOP(|| parm == PARM_or)) {
987 dbg("%d", __LINE__);
988 /* start new OR group */
989 cur_group++;
990 appp = xrealloc(appp, (cur_group+2) * sizeof(*appp));
991 /*appp[cur_group] = NULL; - already NULL */
992 appp[cur_group+1] = NULL;
993 cur_action = 0;
994 }
995 #if ENABLE_FEATURE_FIND_NOT
996 else if (parm == PARM_char_not IF_DESKTOP(|| parm == PARM_not)) {
997 /* also handles "find ! ! -name 'foo*'" */
998 invert_flag ^= 1;
999 dbg("invert_flag:%d", invert_flag);
1000 }
1001 #endif
1002 /* Actions */
1003 else if (parm == PARM_print) {
1004 dbg("%d", __LINE__);
1005 G.need_print = 0;
1006 (void) ALLOC_ACTION(print);
1007 }
1008 #if ENABLE_FEATURE_FIND_PRINT0
1009 else if (parm == PARM_print0) {
1010 dbg("%d", __LINE__);
1011 G.need_print = 0;
1012 (void) ALLOC_ACTION(print0);
1013 }
1014 #endif
1015 #if ENABLE_FEATURE_FIND_PRUNE
1016 else if (parm == PARM_prune) {
1017 dbg("%d", __LINE__);
1018 (void) ALLOC_ACTION(prune);
1019 }
1020 #endif
1021 #if ENABLE_FEATURE_FIND_DELETE
1022 else if (parm == PARM_delete) {
1023 dbg("%d", __LINE__);
1024 G.need_print = 0;
1025 G.recurse_flags |= ACTION_DEPTHFIRST;
1026 (void) ALLOC_ACTION(delete);
1027 }
1028 #endif
1029 #if ENABLE_FEATURE_FIND_EXEC
1030 else if (parm == PARM_exec) {
1031 int i;
1032 action_exec *ap;
1033 dbg("%d", __LINE__);
1034 G.need_print = 0;
1035 ap = ALLOC_ACTION(exec);
1036 ap->exec_argv = ++argv; /* first arg after -exec */
1037 /*ap->exec_argc = 0; - ALLOC_ACTION did it */
1038 while (1) {
1039 if (!*argv) /* did not see ';' or '+' until end */
1040 bb_error_msg_and_die(bb_msg_requires_arg, "-exec");
1041 // find -exec echo Foo ">{}<" ";"
1042 // executes "echo Foo >FILENAME<",
1043 // find -exec echo Foo ">{}<" "+"
1044 // executes "echo Foo FILENAME1 FILENAME2 FILENAME3...".
1045 // TODO (so far we treat "+" just like ";")
1046 if ((argv[0][0] == ';' || argv[0][0] == '+')
1047 && argv[0][1] == '\0'
1048 ) {
1049 break;
1050 }
1051 argv++;
1052 ap->exec_argc++;
1053 }
1054 if (ap->exec_argc == 0)
1055 bb_error_msg_and_die(bb_msg_requires_arg, arg);
1056 ap->subst_count = xmalloc(ap->exec_argc * sizeof(int));
1057 i = ap->exec_argc;
1058 while (i--)
1059 ap->subst_count[i] = count_subst(ap->exec_argv[i]);
1060 }
1061 #endif
1062 #if ENABLE_FEATURE_FIND_PAREN
1063 else if (parm == PARM_char_brace) {
1064 action_paren *ap;
1065 char **endarg;
1066 unsigned nested = 1;
1067
1068 dbg("%d", __LINE__);
1069 endarg = argv;
1070 while (1) {
1071 if (!*++endarg)
1072 bb_error_msg_and_die("unpaired '('");
1073 if (LONE_CHAR(*endarg, '('))
1074 nested++;
1075 else if (LONE_CHAR(*endarg, ')') && !--nested) {
1076 *endarg = NULL;
1077 break;
1078 }
1079 }
1080 ap = ALLOC_ACTION(paren);
1081 ap->subexpr = parse_params(argv + 1);
1082 *endarg = (char*) ")"; /* restore NULLed parameter */
1083 argv = endarg;
1084 }
1085 #endif
1086 else if (parm == PARM_name || parm == PARM_iname) {
1087 action_name *ap;
1088 dbg("%d", __LINE__);
1089 ap = ALLOC_ACTION(name);
1090 ap->pattern = arg1;
1091 ap->iname = (parm == PARM_iname);
1092 }
1093 #if ENABLE_FEATURE_FIND_PATH
1094 else if (parm == PARM_path IF_DESKTOP(|| parm == PARM_wholename) || parm == PARM_ipath) {
1095 action_path *ap;
1096 dbg("%d", __LINE__);
1097 ap = ALLOC_ACTION(path);
1098 ap->pattern = arg1;
1099 ap->ipath = (parm == PARM_ipath);
1100 }
1101 #endif
1102 #if ENABLE_FEATURE_FIND_REGEX
1103 else if (parm == PARM_regex) {
1104 action_regex *ap;
1105 dbg("%d", __LINE__);
1106 ap = ALLOC_ACTION(regex);
1107 xregcomp(&ap->compiled_pattern, arg1, 0 /*cflags*/);
1108 }
1109 #endif
1110 #if ENABLE_FEATURE_FIND_TYPE
1111 else if (parm == PARM_type) {
1112 action_type *ap;
1113 ap = ALLOC_ACTION(type);
1114 ap->type_mask = find_type(arg1);
1115 dbg("created:type mask:%x", ap->type_mask);
1116 }
1117 #endif
1118 #if ENABLE_FEATURE_FIND_PERM
1119 /* -perm BITS File's mode bits are exactly BITS (octal or symbolic).
1120 * Symbolic modes use mode 0 as a point of departure.
1121 * -perm -BITS All of the BITS are set in file's mode.
1122 * -perm +BITS At least one of the BITS is set in file's mode.
1123 */
1124 else if (parm == PARM_perm) {
1125 action_perm *ap;
1126 dbg("%d", __LINE__);
1127 ap = ALLOC_ACTION(perm);
1128 ap->perm_char = arg1[0];
1129 arg1 = plus_minus_num(arg1);
1130 /*ap->perm_mask = 0; - ALLOC_ACTION did it */
1131 if (!bb_parse_mode(arg1, &ap->perm_mask))
1132 bb_error_msg_and_die("invalid mode '%s'", arg1);
1133 }
1134 #endif
1135 #if ENABLE_FEATURE_FIND_MTIME
1136 else if (parm == PARM_mtime) {
1137 action_mtime *ap;
1138 dbg("%d", __LINE__);
1139 ap = ALLOC_ACTION(mtime);
1140 ap->mtime_char = arg1[0];
1141 ap->mtime_days = xatoul(plus_minus_num(arg1));
1142 }
1143 #endif
1144 #if ENABLE_FEATURE_FIND_MMIN
1145 else if (parm == PARM_mmin) {
1146 action_mmin *ap;
1147 dbg("%d", __LINE__);
1148 ap = ALLOC_ACTION(mmin);
1149 ap->mmin_char = arg1[0];
1150 ap->mmin_mins = xatoul(plus_minus_num(arg1));
1151 }
1152 #endif
1153 #if ENABLE_FEATURE_FIND_NEWER
1154 else if (parm == PARM_newer) {
1155 struct stat stat_newer;
1156 action_newer *ap;
1157 dbg("%d", __LINE__);
1158 ap = ALLOC_ACTION(newer);
1159 xstat(arg1, &stat_newer);
1160 ap->newer_mtime = stat_newer.st_mtime;
1161 }
1162 #endif
1163 #if ENABLE_FEATURE_FIND_INUM
1164 else if (parm == PARM_inum) {
1165 action_inum *ap;
1166 dbg("%d", __LINE__);
1167 ap = ALLOC_ACTION(inum);
1168 ap->inode_num = xatoul(arg1);
1169 }
1170 #endif
1171 #if ENABLE_FEATURE_FIND_USER
1172 else if (parm == PARM_user) {
1173 action_user *ap;
1174 dbg("%d", __LINE__);
1175 ap = ALLOC_ACTION(user);
1176 ap->uid = bb_strtou(arg1, NULL, 10);
1177 if (errno)
1178 ap->uid = xuname2uid(arg1);
1179 }
1180 #endif
1181 #if ENABLE_FEATURE_FIND_GROUP
1182 else if (parm == PARM_group) {
1183 action_group *ap;
1184 dbg("%d", __LINE__);
1185 ap = ALLOC_ACTION(group);
1186 ap->gid = bb_strtou(arg1, NULL, 10);
1187 if (errno)
1188 ap->gid = xgroup2gid(arg1);
1189 }
1190 #endif
1191 #if ENABLE_FEATURE_FIND_SIZE
1192 else if (parm == PARM_size) {
1193 /* -size n[bckw]: file uses n units of space
1194 * b (default): units are 512-byte blocks
1195 * c: 1 byte
1196 * k: kilobytes
1197 * w: 2-byte words
1198 */
1199 #if ENABLE_LFS
1200 #define XATOU_SFX xatoull_sfx
1201 #else
1202 #define XATOU_SFX xatoul_sfx
1203 #endif
1204 static const struct suffix_mult find_suffixes[] = {
1205 { "c", 1 },
1206 { "w", 2 },
1207 { "", 512 },
1208 { "b", 512 },
1209 { "k", 1024 },
1210 { "", 0 }
1211 };
1212 action_size *ap;
1213 dbg("%d", __LINE__);
1214 ap = ALLOC_ACTION(size);
1215 ap->size_char = arg1[0];
1216 ap->size = XATOU_SFX(plus_minus_num(arg1), find_suffixes);
1217 }
1218 #endif
1219 #if ENABLE_FEATURE_FIND_CONTEXT
1220 else if (parm == PARM_context) {
1221 action_context *ap;
1222 dbg("%d", __LINE__);
1223 ap = ALLOC_ACTION(context);
1224 /*ap->context = NULL; - ALLOC_ACTION did it */
1225 /* SELinux headers erroneously declare non-const parameter */
1226 if (selinux_raw_to_trans_context((char*)arg1, &ap->context))
1227 bb_simple_perror_msg(arg1);
1228 }
1229 #endif
1230 #if ENABLE_FEATURE_FIND_LINKS
1231 else if (parm == PARM_links) {
1232 action_links *ap;
1233 dbg("%d", __LINE__);
1234 ap = ALLOC_ACTION(links);
1235 ap->links_char = arg1[0];
1236 ap->links_count = xatoul(plus_minus_num(arg1));
1237 }
1238 #endif
1239 else {
1240 bb_error_msg("unrecognized: %s", arg);
1241 bb_show_usage();
1242 }
1243 argv++;
1244 }
1245 dbg("exiting %s", __func__);
1246 return appp;
1247 #undef ALLOC_ACTION
1248 }
1249
1250 int find_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
1251 int find_main(int argc UNUSED_PARAM, char **argv)
1252 {
1253 int i, firstopt, status = EXIT_SUCCESS;
1254
1255 INIT_G();
1256
1257 argv++;
1258 for (firstopt = 0; argv[firstopt]; firstopt++) {
1259 if (argv[firstopt][0] == '-')
1260 break;
1261 if (ENABLE_FEATURE_FIND_NOT && LONE_CHAR(argv[firstopt], '!'))
1262 break;
1263 if (ENABLE_FEATURE_FIND_PAREN && LONE_CHAR(argv[firstopt], '('))
1264 break;
1265 }
1266 if (firstopt == 0) {
1267 *--argv = (char*)".";
1268 firstopt++;
1269 }
1270
1271 G.actions = parse_params(&argv[firstopt]);
1272 argv[firstopt] = NULL;
1273
1274 #if ENABLE_FEATURE_FIND_XDEV
1275 if (G.xdev_on) {
1276 struct stat stbuf;
1277
1278 G.xdev_count = firstopt;
1279 G.xdev_dev = xzalloc(G.xdev_count * sizeof(G.xdev_dev[0]));
1280 for (i = 0; argv[i]; i++) {
1281 /* not xstat(): shouldn't bomb out on
1282 * "find not_exist exist -xdev" */
1283 if (stat(argv[i], &stbuf) == 0)
1284 G.xdev_dev[i] = stbuf.st_dev;
1285 /* else G.xdev_dev[i] stays 0 and
1286 * won't match any real device dev_t
1287 */
1288 }
1289 }
1290 #endif
1291
1292 for (i = 0; argv[i]; i++) {
1293 if (!recursive_action(argv[i],
1294 G.recurse_flags,/* flags */
1295 fileAction, /* file action */
1296 fileAction, /* dir action */
1297 NULL, /* user data */
1298 0) /* depth */
1299 ) {
1300 status = EXIT_FAILURE;
1301 }
1302 }
1303
1304 return status;
1305 }
Tomato firmware and modifications.