1 /* vi: set sw=4 ts=4: */
3 * Mini find implementation for busybox
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
7 * Reworked by David Douthitt <n9ubh@callsign.net> and
8 * Matt Kraai <kraai@alumni.carnegiemellon.edu>.
10 * Licensed under the GPL version 2, see the file LICENSE in this tarball.
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' '{} {}' ';'
25 * (strace: execve("/bin/echo", ["echo", "file.txt file.txt"], [ 30 vars ]))
26 * # find file.txt -exec 'echo' '{} {}' ';' -print -exec pwd ';'
30 * # find -name '*.c' -o -name '*.h'
31 * [shows files, *.c and *.h intermixed]
32 * # find file.txt -name '*f*' -o -name '*t*'
34 * # find file.txt -name '*z*' -o -name '*t*'
36 * # find file.txt -name '*f*' -o -name '*z*'
39 * # find t z -name '*t*' -print -o -name '*z*'
41 * # find t z t z -name '*t*' -o -name '*z*' -print
44 * # find t z t z '(' -name '*t*' -o -name '*z*' ')' -o -print
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
58 #if ENABLE_FEATURE_FIND_REGEX
62 /* This is a NOEXEC applet. Be very careful! */
65 typedef int (*action_fp)(const char *fileName, const struct stat *statbuf, void *) FAST_FUNC;
69 #if ENABLE_FEATURE_FIND_NOT
74 #define ACTS(name, ...) typedef struct { action a; __VA_ARGS__ } action_##name;
76 static int FAST_FUNC func_##name(const char *fileName UNUSED_PARAM, \
77 const struct stat *statbuf UNUSED_PARAM, \
78 action_##name* ap UNUSED_PARAM)
81 ACTS(name, const char *pattern; bool iname;)
82 IF_FEATURE_FIND_PATH( ACTS(path, const char *pattern;))
83 IF_FEATURE_FIND_REGEX( ACTS(regex, regex_t compiled_pattern;))
84 IF_FEATURE_FIND_PRINT0( ACTS(print0))
85 IF_FEATURE_FIND_TYPE( ACTS(type, int type_mask;))
86 IF_FEATURE_FIND_PERM( ACTS(perm, char perm_char; mode_t perm_mask;))
87 IF_FEATURE_FIND_MTIME( ACTS(mtime, char mtime_char; unsigned mtime_days;))
88 IF_FEATURE_FIND_MMIN( ACTS(mmin, char mmin_char; unsigned mmin_mins;))
89 IF_FEATURE_FIND_NEWER( ACTS(newer, time_t newer_mtime;))
90 IF_FEATURE_FIND_INUM( ACTS(inum, ino_t inode_num;))
91 IF_FEATURE_FIND_USER( ACTS(user, uid_t uid;))
92 IF_FEATURE_FIND_SIZE( ACTS(size, char size_char; off_t size;))
93 IF_FEATURE_FIND_CONTEXT(ACTS(context, security_context_t context;))
94 IF_FEATURE_FIND_PAREN( ACTS(paren, action ***subexpr;))
95 IF_FEATURE_FIND_PRUNE( ACTS(prune))
96 IF_FEATURE_FIND_DELETE( ACTS(delete))
97 IF_FEATURE_FIND_EXEC( ACTS(exec, char **exec_argv; unsigned *subst_count; int exec_argc;))
98 IF_FEATURE_FIND_GROUP( ACTS(group, gid_t gid;))
99 IF_FEATURE_FIND_LINKS( ACTS(links, char links_char; int links_count;))
102 IF_FEATURE_FIND_XDEV(dev_t *xdev_dev;)
103 IF_FEATURE_FIND_XDEV(int xdev_count;)
106 recurse_flags_t recurse_flags;
108 #define G (*(struct globals*)&bb_common_bufsiz1)
109 #define INIT_G() do { \
110 struct G_sizecheck { \
111 char G_sizecheck[sizeof(G) > COMMON_BUFSIZE ? -1 : 1]; \
113 /* we have to zero it out because of NOEXEC */ \
114 memset(&G, 0, offsetof(struct globals, need_print)); \
116 G.recurse_flags = ACTION_RECURSE; \
119 #if ENABLE_FEATURE_FIND_EXEC
120 static unsigned count_subst(const char *str)
123 while ((str = strstr(str, "{}")) != NULL) {
131 static char* subst(const char *src, unsigned count, const char* filename)
133 char *buf, *dst, *end;
134 size_t flen = strlen(filename);
135 /* we replace each '{}' with filename: growth by strlen-2 */
136 buf = dst = xmalloc(strlen(src) + count*(flen-2) + 1);
137 while ((end = strstr(src, "{}"))) {
138 memcpy(dst, src, end - src);
141 memcpy(dst, filename, flen);
149 /* Return values of ACTFs ('action functions') are a bit mask:
150 * bit 1=1: prune (use SKIP constant for setting it)
151 * bit 0=1: matched successfully (TRUE)
154 static int exec_actions(action ***appp, const char *fileName, const struct stat *statbuf)
161 /* "action group" is a set of actions ANDed together.
162 * groups are ORed together.
163 * We simply evaluate each group until we find one in which all actions
166 /* -prune is special: if it is encountered, then we won't
167 * descend into current directory. It doesn't matter whether
168 * action group (in which -prune sits) will succeed or not:
169 * find * -prune -name 'f*' -o -name 'm*' -- prunes every dir
170 * find * -name 'f*' -o -prune -name 'm*' -- prunes all dirs
171 * not starting with 'f' */
173 /* We invert TRUE bit (bit 0). Now 1 there means 'failure'.
174 * and bitwise OR in "rc |= TRUE ^ ap->f()" will:
175 * (1) make SKIP (-prune) bit stick; and (2) detect 'failure'.
176 * On return, bit is restored. */
179 while ((app = appp[++cur_group]) != NULL) {
180 rc &= ~TRUE; /* 'success' so far, clear TRUE bit */
183 ap = app[++cur_action];
184 if (!ap) /* all actions in group were successful */
185 return rc ^ TRUE; /* restore TRUE bit */
186 rc |= TRUE ^ ap->f(fileName, statbuf, ap);
187 #if ENABLE_FEATURE_FIND_NOT
188 if (ap->invert) rc ^= TRUE;
190 if (rc & TRUE) /* current group failed, try next */
194 return rc ^ TRUE; /* restore TRUE bit */
200 const char *tmp = bb_basename(fileName);
201 if (tmp != fileName && !*tmp) { /* "foo/bar/". Oh no... go back to 'b' */
203 while (tmp != fileName && *--tmp != '/')
208 return fnmatch(ap->pattern, tmp, FNM_PERIOD | (ap->iname ? FNM_CASEFOLD : 0)) == 0;
211 #if ENABLE_FEATURE_FIND_PATH
214 return fnmatch(ap->pattern, fileName, 0) == 0;
217 #if ENABLE_FEATURE_FIND_REGEX
221 if (regexec(&ap->compiled_pattern, fileName, 1, &match, 0 /*eflags*/))
222 return 0; /* no match */
224 return 0; /* match doesn't start at pos 0 */
225 if (fileName[match.rm_eo])
226 return 0; /* match doesn't end exactly at end of pathname */
230 #if ENABLE_FEATURE_FIND_TYPE
233 return ((statbuf->st_mode & S_IFMT) == ap->type_mask);
236 #if ENABLE_FEATURE_FIND_PERM
239 /* -perm +mode: at least one of perm_mask bits are set */
240 if (ap->perm_char == '+')
241 return (statbuf->st_mode & ap->perm_mask) != 0;
242 /* -perm -mode: all of perm_mask are set */
243 if (ap->perm_char == '-')
244 return (statbuf->st_mode & ap->perm_mask) == ap->perm_mask;
245 /* -perm mode: file mode must match perm_mask */
246 return (statbuf->st_mode & 07777) == ap->perm_mask;
249 #if ENABLE_FEATURE_FIND_MTIME
252 time_t file_age = time(NULL) - statbuf->st_mtime;
253 time_t mtime_secs = ap->mtime_days * 24*60*60;
254 if (ap->mtime_char == '+')
255 return file_age >= mtime_secs + 24*60*60;
256 if (ap->mtime_char == '-')
257 return file_age < mtime_secs;
258 /* just numeric mtime */
259 return file_age >= mtime_secs && file_age < (mtime_secs + 24*60*60);
262 #if ENABLE_FEATURE_FIND_MMIN
265 time_t file_age = time(NULL) - statbuf->st_mtime;
266 time_t mmin_secs = ap->mmin_mins * 60;
267 if (ap->mmin_char == '+')
268 return file_age >= mmin_secs + 60;
269 if (ap->mmin_char == '-')
270 return file_age < mmin_secs;
271 /* just numeric mmin */
272 return file_age >= mmin_secs && file_age < (mmin_secs + 60);
275 #if ENABLE_FEATURE_FIND_NEWER
278 return (ap->newer_mtime < statbuf->st_mtime);
281 #if ENABLE_FEATURE_FIND_INUM
284 return (statbuf->st_ino == ap->inode_num);
287 #if ENABLE_FEATURE_FIND_EXEC
291 #if ENABLE_USE_PORTABLE_CODE
292 char **argv = alloca(sizeof(char*) * (ap->exec_argc + 1));
293 #else /* gcc 4.3.1 generates smaller code: */
294 char *argv[ap->exec_argc + 1];
296 for (i = 0; i < ap->exec_argc; i++)
297 argv[i] = subst(ap->exec_argv[i], ap->subst_count[i], fileName);
298 argv[i] = NULL; /* terminate the list */
300 rc = spawn_and_wait(argv);
302 bb_simple_perror_msg(argv[0]);
307 return rc == 0; /* return 1 if exitcode 0 */
310 #if ENABLE_FEATURE_FIND_USER
313 return (statbuf->st_uid == ap->uid);
316 #if ENABLE_FEATURE_FIND_GROUP
319 return (statbuf->st_gid == ap->gid);
322 #if ENABLE_FEATURE_FIND_PRINT0
325 printf("%s%c", fileName, '\0');
334 #if ENABLE_FEATURE_FIND_PAREN
337 return exec_actions(ap->subexpr, fileName, statbuf);
340 #if ENABLE_FEATURE_FIND_SIZE
343 if (ap->size_char == '+')
344 return statbuf->st_size > ap->size;
345 if (ap->size_char == '-')
346 return statbuf->st_size < ap->size;
347 return statbuf->st_size == ap->size;
350 #if ENABLE_FEATURE_FIND_PRUNE
352 * -prune: if -depth is not given, return true and do not descend
353 * current dir; if -depth is given, return false with no effect.
355 * find dir -name 'asm-*' -prune -o -name '*.[chS]' -print
362 #if ENABLE_FEATURE_FIND_DELETE
366 if (S_ISDIR(statbuf->st_mode)) {
367 rc = rmdir(fileName);
369 rc = unlink(fileName);
372 bb_simple_perror_msg(fileName);
376 #if ENABLE_FEATURE_FIND_CONTEXT
379 security_context_t con;
382 if (G.recurse_flags & ACTION_FOLLOWLINKS) {
383 rc = getfilecon(fileName, &con);
385 rc = lgetfilecon(fileName, &con);
389 rc = strcmp(ap->context, con);
394 #if ENABLE_FEATURE_FIND_LINKS
397 switch(ap->links_char) {
398 case '-' : return (statbuf->st_nlink < ap->links_count);
399 case '+' : return (statbuf->st_nlink > ap->links_count);
400 default: return (statbuf->st_nlink == ap->links_count);
405 static int FAST_FUNC fileAction(const char *fileName,
406 struct stat *statbuf,
407 void *userData IF_NOT_FEATURE_FIND_MAXDEPTH(UNUSED_PARAM),
408 int depth IF_NOT_FEATURE_FIND_MAXDEPTH(UNUSED_PARAM))
411 #if ENABLE_FEATURE_FIND_MAXDEPTH
412 #define minmaxdepth ((int*)userData)
414 if (depth < minmaxdepth[0]) return TRUE;
415 if (depth > minmaxdepth[1]) return SKIP;
418 #if ENABLE_FEATURE_FIND_XDEV
419 if (S_ISDIR(statbuf->st_mode)) {
421 for (i = 0; i < G.xdev_count; i++) {
422 if (G.xdev_dev[i] == statbuf->st_dev)
430 i = exec_actions(G.actions, fileName, statbuf);
431 /* Had no explicit -print[0] or -exec? then print */
432 if ((i & TRUE) && G.need_print)
435 #if ENABLE_FEATURE_FIND_MAXDEPTH
436 if (S_ISDIR(statbuf->st_mode))
437 if (depth == minmaxdepth[1])
440 /* Cannot return 0: our caller, recursive_action(),
441 * will perror() and skip dirs (if called on dir) */
442 return (i & SKIP) ? SKIP : TRUE;
447 #if ENABLE_FEATURE_FIND_TYPE
448 static int find_type(const char *type)
454 else if (*type == 'c')
456 else if (*type == 'd')
458 else if (*type == 'p')
460 else if (*type == 'f')
462 else if (*type == 'l')
464 else if (*type == 's')
467 if (mask == 0 || type[1] != '\0')
468 bb_error_msg_and_die(bb_msg_invalid_arg, type, "-type");
474 #if ENABLE_FEATURE_FIND_PERM \
475 || ENABLE_FEATURE_FIND_MTIME || ENABLE_FEATURE_FIND_MMIN \
476 || ENABLE_FEATURE_FIND_SIZE || ENABLE_FEATURE_FIND_LINKS
477 static const char* plus_minus_num(const char* str)
479 if (*str == '-' || *str == '+')
485 static action*** parse_params(char **argv)
490 IF_FEATURE_FIND_NOT( PARM_char_not ,)
494 IF_FEATURE_FIND_NOT( PARM_not ,)
497 IF_FEATURE_FIND_PRINT0( PARM_print0 ,)
498 IF_FEATURE_FIND_DEPTH( PARM_depth ,)
499 IF_FEATURE_FIND_PRUNE( PARM_prune ,)
500 IF_FEATURE_FIND_DELETE( PARM_delete ,)
501 IF_FEATURE_FIND_EXEC( PARM_exec ,)
502 IF_FEATURE_FIND_PAREN( PARM_char_brace,)
503 /* All options starting from here require argument */
506 IF_FEATURE_FIND_PATH( PARM_path ,)
507 IF_FEATURE_FIND_REGEX( PARM_regex ,)
508 IF_FEATURE_FIND_TYPE( PARM_type ,)
509 IF_FEATURE_FIND_PERM( PARM_perm ,)
510 IF_FEATURE_FIND_MTIME( PARM_mtime ,)
511 IF_FEATURE_FIND_MMIN( PARM_mmin ,)
512 IF_FEATURE_FIND_NEWER( PARM_newer ,)
513 IF_FEATURE_FIND_INUM( PARM_inum ,)
514 IF_FEATURE_FIND_USER( PARM_user ,)
515 IF_FEATURE_FIND_GROUP( PARM_group ,)
516 IF_FEATURE_FIND_SIZE( PARM_size ,)
517 IF_FEATURE_FIND_CONTEXT(PARM_context ,)
518 IF_FEATURE_FIND_LINKS( PARM_links ,)
521 static const char params[] ALIGN1 =
524 IF_FEATURE_FIND_NOT( "!\0" )
528 IF_FEATURE_FIND_NOT( "-not\0" )
531 IF_FEATURE_FIND_PRINT0( "-print0\0" )
532 IF_FEATURE_FIND_DEPTH( "-depth\0" )
533 IF_FEATURE_FIND_PRUNE( "-prune\0" )
534 IF_FEATURE_FIND_DELETE( "-delete\0" )
535 IF_FEATURE_FIND_EXEC( "-exec\0" )
536 IF_FEATURE_FIND_PAREN( "(\0" )
537 /* All options starting from here require argument */
540 IF_FEATURE_FIND_PATH( "-path\0" )
541 IF_FEATURE_FIND_REGEX( "-regex\0" )
542 IF_FEATURE_FIND_TYPE( "-type\0" )
543 IF_FEATURE_FIND_PERM( "-perm\0" )
544 IF_FEATURE_FIND_MTIME( "-mtime\0" )
545 IF_FEATURE_FIND_MMIN( "-mmin\0" )
546 IF_FEATURE_FIND_NEWER( "-newer\0" )
547 IF_FEATURE_FIND_INUM( "-inum\0" )
548 IF_FEATURE_FIND_USER( "-user\0" )
549 IF_FEATURE_FIND_GROUP( "-group\0" )
550 IF_FEATURE_FIND_SIZE( "-size\0" )
551 IF_FEATURE_FIND_CONTEXT("-context\0")
552 IF_FEATURE_FIND_LINKS( "-links\0" )
556 unsigned cur_group = 0;
557 unsigned cur_action = 0;
558 IF_FEATURE_FIND_NOT( bool invert_flag = 0; )
560 /* This is the only place in busybox where we use nested function.
561 * So far more standard alternatives were bigger. */
562 /* Suppress a warning "func without a prototype" */
563 auto action* alloc_action(int sizeof_struct, action_fp f);
564 action* alloc_action(int sizeof_struct, action_fp f)
567 appp[cur_group] = xrealloc(appp[cur_group], (cur_action+2) * sizeof(*appp));
568 appp[cur_group][cur_action++] = ap = xmalloc(sizeof_struct);
569 appp[cur_group][cur_action] = NULL;
571 IF_FEATURE_FIND_NOT( ap->invert = invert_flag; )
572 IF_FEATURE_FIND_NOT( invert_flag = 0; )
576 #define ALLOC_ACTION(name) (action_##name*)alloc_action(sizeof(action_##name), (action_fp) func_##name)
578 appp = xzalloc(2 * sizeof(appp[0])); /* appp[0],[1] == NULL */
580 /* Actions have side effects and return a true or false value
581 * We implement: -print, -print0, -exec
583 * The rest are tests.
585 * Tests and actions are grouped by operators
586 * ( expr ) Force precedence
587 * ! expr True if expr is false
588 * -not expr Same as ! expr
589 * expr1 [-a[nd]] expr2 And; expr2 is not evaluated if expr1 is false
590 * expr1 -o[r] expr2 Or; expr2 is not evaluated if expr1 is true
591 * expr1 , expr2 List; both expr1 and expr2 are always evaluated
592 * We implement: (), -a, -o
595 const char *arg = argv[0];
596 int parm = index_in_strings(params, arg);
597 const char *arg1 = argv[1];
599 if (parm >= PARM_name) {
600 /* All options starting from -name require argument */
602 bb_error_msg_and_die(bb_msg_requires_arg, arg);
606 /* We can use big switch() here, but on i386
607 * it doesn't give smaller code. Other arches? */
609 /* --- Operators --- */
610 if (parm == PARM_a IF_DESKTOP(|| parm == PARM_and)) {
611 /* no further special handling required */
613 else if (parm == PARM_o IF_DESKTOP(|| parm == PARM_or)) {
614 /* start new OR group */
616 appp = xrealloc(appp, (cur_group+2) * sizeof(*appp));
617 /*appp[cur_group] = NULL; - already NULL */
618 appp[cur_group+1] = NULL;
621 #if ENABLE_FEATURE_FIND_NOT
622 else if (parm == PARM_char_not IF_DESKTOP(|| parm == PARM_not)) {
623 /* also handles "find ! ! -name 'foo*'" */
628 /* --- Tests and actions --- */
629 else if (parm == PARM_print) {
631 /* GNU find ignores '!' here: "find ! -print" */
632 IF_FEATURE_FIND_NOT( invert_flag = 0; )
633 (void) ALLOC_ACTION(print);
635 #if ENABLE_FEATURE_FIND_PRINT0
636 else if (parm == PARM_print0) {
638 IF_FEATURE_FIND_NOT( invert_flag = 0; )
639 (void) ALLOC_ACTION(print0);
642 #if ENABLE_FEATURE_FIND_DEPTH
643 else if (parm == PARM_depth) {
644 G.recurse_flags |= ACTION_DEPTHFIRST;
647 #if ENABLE_FEATURE_FIND_PRUNE
648 else if (parm == PARM_prune) {
649 IF_FEATURE_FIND_NOT( invert_flag = 0; )
650 (void) ALLOC_ACTION(prune);
653 #if ENABLE_FEATURE_FIND_DELETE
654 else if (parm == PARM_delete) {
656 G.recurse_flags |= ACTION_DEPTHFIRST;
657 (void) ALLOC_ACTION(delete);
660 #if ENABLE_FEATURE_FIND_EXEC
661 else if (parm == PARM_exec) {
665 IF_FEATURE_FIND_NOT( invert_flag = 0; )
666 ap = ALLOC_ACTION(exec);
667 ap->exec_argv = ++argv; /* first arg after -exec */
670 if (!*argv) /* did not see ';' until end */
671 bb_error_msg_and_die("-exec CMD must end by ';'");
672 if (LONE_CHAR(argv[0], ';'))
677 if (ap->exec_argc == 0)
678 bb_error_msg_and_die(bb_msg_requires_arg, arg);
679 ap->subst_count = xmalloc(ap->exec_argc * sizeof(int));
682 ap->subst_count[i] = count_subst(ap->exec_argv[i]);
685 #if ENABLE_FEATURE_FIND_PAREN
686 else if (parm == PARM_char_brace) {
694 bb_error_msg_and_die("unpaired '('");
695 if (LONE_CHAR(*endarg, '('))
697 else if (LONE_CHAR(*endarg, ')') && !--nested) {
702 ap = ALLOC_ACTION(paren);
703 ap->subexpr = parse_params(argv + 1);
704 *endarg = (char*) ")"; /* restore NULLed parameter */
708 else if (parm == PARM_name || parm == PARM_iname) {
710 ap = ALLOC_ACTION(name);
712 ap->iname = (parm == PARM_iname);
714 #if ENABLE_FEATURE_FIND_PATH
715 else if (parm == PARM_path) {
717 ap = ALLOC_ACTION(path);
721 #if ENABLE_FEATURE_FIND_REGEX
722 else if (parm == PARM_regex) {
724 ap = ALLOC_ACTION(regex);
725 xregcomp(&ap->compiled_pattern, arg1, 0 /*cflags*/);
728 #if ENABLE_FEATURE_FIND_TYPE
729 else if (parm == PARM_type) {
731 ap = ALLOC_ACTION(type);
732 ap->type_mask = find_type(arg1);
735 #if ENABLE_FEATURE_FIND_PERM
736 /* -perm mode File's permission bits are exactly mode (octal or symbolic).
737 * Symbolic modes use mode 0 as a point of departure.
738 * -perm -mode All of the permission bits mode are set for the file.
739 * -perm +mode Any of the permission bits mode are set for the file.
741 else if (parm == PARM_perm) {
743 ap = ALLOC_ACTION(perm);
744 ap->perm_char = arg1[0];
745 arg1 = plus_minus_num(arg1);
747 if (!bb_parse_mode(arg1, &ap->perm_mask))
748 bb_error_msg_and_die("invalid mode: %s", arg1);
751 #if ENABLE_FEATURE_FIND_MTIME
752 else if (parm == PARM_mtime) {
754 ap = ALLOC_ACTION(mtime);
755 ap->mtime_char = arg1[0];
756 ap->mtime_days = xatoul(plus_minus_num(arg1));
759 #if ENABLE_FEATURE_FIND_MMIN
760 else if (parm == PARM_mmin) {
762 ap = ALLOC_ACTION(mmin);
763 ap->mmin_char = arg1[0];
764 ap->mmin_mins = xatoul(plus_minus_num(arg1));
767 #if ENABLE_FEATURE_FIND_NEWER
768 else if (parm == PARM_newer) {
769 struct stat stat_newer;
771 ap = ALLOC_ACTION(newer);
772 xstat(arg1, &stat_newer);
773 ap->newer_mtime = stat_newer.st_mtime;
776 #if ENABLE_FEATURE_FIND_INUM
777 else if (parm == PARM_inum) {
779 ap = ALLOC_ACTION(inum);
780 ap->inode_num = xatoul(arg1);
783 #if ENABLE_FEATURE_FIND_USER
784 else if (parm == PARM_user) {
786 ap = ALLOC_ACTION(user);
787 ap->uid = bb_strtou(arg1, NULL, 10);
789 ap->uid = xuname2uid(arg1);
792 #if ENABLE_FEATURE_FIND_GROUP
793 else if (parm == PARM_group) {
795 ap = ALLOC_ACTION(group);
796 ap->gid = bb_strtou(arg1, NULL, 10);
798 ap->gid = xgroup2gid(arg1);
801 #if ENABLE_FEATURE_FIND_SIZE
802 else if (parm == PARM_size) {
803 /* -size n[bckw]: file uses n units of space
804 * b (default): units are 512-byte blocks
810 #define XATOU_SFX xatoull_sfx
812 #define XATOU_SFX xatoul_sfx
814 static const struct suffix_mult find_suffixes[] = {
823 ap = ALLOC_ACTION(size);
824 ap->size_char = arg1[0];
825 ap->size = XATOU_SFX(plus_minus_num(arg1), find_suffixes);
828 #if ENABLE_FEATURE_FIND_CONTEXT
829 else if (parm == PARM_context) {
831 ap = ALLOC_ACTION(context);
833 /* SELinux headers erroneously declare non-const parameter */
834 if (selinux_raw_to_trans_context((char*)arg1, &ap->context))
835 bb_simple_perror_msg(arg1);
838 #if ENABLE_FEATURE_FIND_LINKS
839 else if (parm == PARM_links) {
841 ap = ALLOC_ACTION(links);
842 ap->links_char = arg1[0];
843 ap->links_count = xatoul(plus_minus_num(arg1));
847 bb_error_msg("unrecognized: %s", arg);
857 int find_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
858 int find_main(int argc UNUSED_PARAM, char **argv)
860 static const char options[] ALIGN1 =
862 IF_FEATURE_FIND_XDEV( "-xdev\0" )
863 IF_FEATURE_FIND_MAXDEPTH("-mindepth\0""-maxdepth\0")
867 IF_FEATURE_FIND_XDEV( OPT_XDEV ,)
868 IF_FEATURE_FIND_MAXDEPTH(OPT_MINDEPTH,)
873 int i, firstopt, status = EXIT_SUCCESS;
874 #if ENABLE_FEATURE_FIND_MAXDEPTH
875 int minmaxdepth[2] = { 0, INT_MAX };
877 #define minmaxdepth NULL
882 for (firstopt = 1; argv[firstopt]; firstopt++) {
883 if (argv[firstopt][0] == '-')
885 if (ENABLE_FEATURE_FIND_NOT && LONE_CHAR(argv[firstopt], '!'))
887 #if ENABLE_FEATURE_FIND_PAREN
888 if (LONE_CHAR(argv[firstopt], '('))
893 argv[0] = (char*)".";
898 /* All options always return true. They always take effect
899 * rather than being processed only when their place in the
900 * expression is reached.
901 * We implement: -follow, -xdev, -maxdepth
903 /* Process options, and replace then with -a */
904 /* (-a will be ignored by recursive parser later) */
905 argp = &argv[firstopt];
906 while ((arg = argp[0])) {
907 int opt = index_in_strings(options, arg);
908 if (opt == OPT_FOLLOW) {
909 G.recurse_flags |= ACTION_FOLLOWLINKS | ACTION_DANGLING_OK;
910 argp[0] = (char*)"-a";
912 #if ENABLE_FEATURE_FIND_XDEV
913 if (opt == OPT_XDEV) {
916 G.xdev_count = firstopt - 1;
917 G.xdev_dev = xmalloc(G.xdev_count * sizeof(dev_t));
918 for (i = 1; i < firstopt; i++) {
919 /* not xstat(): shouldn't bomb out on
920 * "find not_exist exist -xdev" */
921 if (stat(argv[i], &stbuf))
923 G.xdev_dev[i-1] = stbuf.st_dev;
926 argp[0] = (char*)"-a";
929 #if ENABLE_FEATURE_FIND_MAXDEPTH
930 if (opt == OPT_MINDEPTH || opt == OPT_MINDEPTH + 1) {
933 minmaxdepth[opt - OPT_MINDEPTH] = xatoi_u(argp[1]);
934 argp[0] = (char*)"-a";
935 argp[1] = (char*)"-a";
942 G.actions = parse_params(&argv[firstopt]);
944 for (i = 1; i < firstopt; i++) {
945 if (!recursive_action(argv[i],
946 G.recurse_flags,/* flags */
947 fileAction, /* file action */
948 fileAction, /* dir action */
949 #if ENABLE_FEATURE_FIND_MAXDEPTH
950 minmaxdepth, /* user data */
952 NULL, /* user data */
955 status = EXIT_FAILURE;