2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Cimarron D. Taylor of the University of California, Berkeley.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 static const char sccsid[] = "@(#)function.c 8.10 (Berkeley) 5/4/95";
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD$");
46 #include <sys/param.h>
47 #include <sys/ucred.h>
49 #include <sys/types.h>
52 #include <sys/mount.h>
53 #include <sys/timeb.h>
72 static PLAN *palloc(OPTION *);
73 static long long find_parsenum(PLAN *, const char *, char *, char *);
74 static long long find_parsetime(PLAN *, const char *, char *);
75 static char *nextarg(OPTION *, char ***);
77 extern char **environ;
79 static PLAN *lastexecplus = NULL;
81 #define COMPARE(a, b) do { \
82 switch (plan->flags & F_ELG_MASK) { \
95 palloc(OPTION *option)
99 if ((new = malloc(sizeof(PLAN))) == NULL)
101 new->execute = option->execute;
102 new->flags = option->flags;
109 * Parse a string of the form [+-]# and return the value.
112 find_parsenum(PLAN *plan, const char *option, char *vp, char *endch)
115 char *endchar, *str; /* Pointer to character ending conversion. */
117 /* Determine comparison from leading + or -. */
122 plan->flags |= F_GREATER;
126 plan->flags |= F_LESSTHAN;
129 plan->flags |= F_EQUAL;
134 * Convert the string with strtoq(). Note, if strtoq() returns zero
135 * and endchar points to the beginning of the string we know we have
138 value = strtoq(str, &endchar, 10);
139 if (value == 0 && endchar == str)
140 errx(1, "%s: %s: illegal numeric value", option, vp);
141 if (endchar[0] && endch == NULL)
142 errx(1, "%s: %s: illegal trailing character", option, vp);
150 * Parse a string of the form [+-]([0-9]+[smhdw]?)+ and return the value.
153 find_parsetime(PLAN *plan, const char *option, char *vp)
155 long long secs, value;
156 char *str, *unit; /* Pointer to character ending conversion. */
158 /* Determine comparison from leading + or -. */
163 plan->flags |= F_GREATER;
167 plan->flags |= F_LESSTHAN;
170 plan->flags |= F_EQUAL;
174 value = strtoq(str, &unit, 10);
175 if (value == 0 && unit == str) {
176 errx(1, "%s: %s: illegal time value", option, vp);
186 case 's': /* seconds */
189 case 'm': /* minutes */
192 case 'h': /* hours */
193 secs += value * 3600;
196 secs += value * 86400;
198 case 'w': /* weeks */
199 secs += value * 604800;
202 errx(1, "%s: %s: bad unit '%c'", option, vp, *unit);
206 if (*str == '\0') /* EOS */
208 value = strtoq(str, &unit, 10);
209 if (value == 0 && unit == str) {
210 errx(1, "%s: %s: illegal time value", option, vp);
214 errx(1, "%s: %s: missing trailing unit", option, vp);
218 plan->flags |= F_EXACTTIME;
224 * Check that another argument still exists, return a pointer to it,
225 * and increment the argument vector pointer.
228 nextarg(OPTION *option, char ***argvp)
232 if ((arg = **argvp) == 0)
233 errx(1, "%s: requires additional arguments", option->name);
239 * The value of n for the inode times (atime, birthtime, ctime, mtime) is a
240 * range, i.e. n matches from (n - 1) to n 24 hour periods. This interacts
241 * with -n, such that "-mtime -1" would be less than 0 days, which isn't what
242 * the user wanted. Correct so that -1 is "less than 1".
244 #define TIME_CORRECT(p) \
245 if (((p)->flags & F_ELG_MASK) == F_LESSTHAN) \
249 * -[acm]min n functions --
251 * True if the difference between the
252 * file access time (-amin)
253 * file birth time (-Bmin)
254 * last change of file status information (-cmin)
255 * file modification time (-mmin)
256 * and the current time is n min periods.
259 f_Xmin(PLAN *plan, FTSENT *entry)
261 if (plan->flags & F_TIME_C) {
262 COMPARE((now - entry->fts_statp->st_ctime +
263 60 - 1) / 60, plan->t_data);
264 } else if (plan->flags & F_TIME_A) {
265 COMPARE((now - entry->fts_statp->st_atime +
266 60 - 1) / 60, plan->t_data);
267 } else if (plan->flags & F_TIME_B) {
268 COMPARE((now - entry->fts_statp->st_birthtime +
269 60 - 1) / 60, plan->t_data);
271 COMPARE((now - entry->fts_statp->st_mtime +
272 60 - 1) / 60, plan->t_data);
277 c_Xmin(OPTION *option, char ***argvp)
282 nmins = nextarg(option, argvp);
283 ftsoptions &= ~FTS_NOSTAT;
285 new = palloc(option);
286 new->t_data = find_parsenum(new, option->name, nmins, NULL);
292 * -[acm]time n functions --
294 * True if the difference between the
295 * file access time (-atime)
296 * file birth time (-Btime)
297 * last change of file status information (-ctime)
298 * file modification time (-mtime)
299 * and the current time is n 24 hour periods.
303 f_Xtime(PLAN *plan, FTSENT *entry)
307 if (plan->flags & F_TIME_A)
308 xtime = entry->fts_statp->st_atime;
309 else if (plan->flags & F_TIME_B)
310 xtime = entry->fts_statp->st_birthtime;
311 else if (plan->flags & F_TIME_C)
312 xtime = entry->fts_statp->st_ctime;
314 xtime = entry->fts_statp->st_mtime;
316 if (plan->flags & F_EXACTTIME)
317 COMPARE(now - xtime, plan->t_data);
319 COMPARE((now - xtime + 86400 - 1) / 86400, plan->t_data);
323 c_Xtime(OPTION *option, char ***argvp)
328 value = nextarg(option, argvp);
329 ftsoptions &= ~FTS_NOSTAT;
331 new = palloc(option);
332 new->t_data = find_parsetime(new, option->name, value);
333 if (!(new->flags & F_EXACTTIME))
339 * -maxdepth/-mindepth n functions --
341 * Does the same as -prune if the level of the current file is
342 * greater/less than the specified maximum/minimum depth.
344 * Note that -maxdepth and -mindepth are handled specially in
345 * find_execute() so their f_* functions are set to f_always_true().
348 c_mXXdepth(OPTION *option, char ***argvp)
353 dstr = nextarg(option, argvp);
355 /* all other errors handled by find_parsenum() */
356 errx(1, "%s: %s: value must be positive", option->name, dstr);
358 new = palloc(option);
359 if (option->flags & F_MAXDEPTH)
360 maxdepth = find_parsenum(new, option->name, dstr, NULL);
362 mindepth = find_parsenum(new, option->name, dstr, NULL);
369 * Show files with EXTENDED ACL attributes.
372 f_acl(PLAN *plan __unused, FTSENT *entry)
376 int acl_supported = 0, ret, trivial;
378 if (S_ISLNK(entry->fts_statp->st_mode))
380 ret = pathconf(entry->fts_accpath, _PC_ACL_NFS4);
383 acl_type = ACL_TYPE_NFS4;
384 } else if (ret < 0 && errno != EINVAL) {
385 warn("%s", entry->fts_accpath);
388 if (acl_supported == 0) {
389 ret = pathconf(entry->fts_accpath, _PC_ACL_EXTENDED);
392 acl_type = ACL_TYPE_ACCESS;
393 } else if (ret < 0 && errno != EINVAL) {
394 warn("%s", entry->fts_accpath);
398 if (acl_supported == 0)
401 facl = acl_get_file(entry->fts_accpath, acl_type);
403 warn("%s", entry->fts_accpath);
406 ret = acl_is_trivial_np(facl, &trivial);
409 warn("%s", entry->fts_accpath);
418 c_acl(OPTION *option, char ***argvp __unused)
420 ftsoptions &= ~FTS_NOSTAT;
421 return (palloc(option));
425 * -delete functions --
427 * True always. Makes its best shot and continues on regardless.
430 f_delete(PLAN *plan __unused, FTSENT *entry)
432 /* ignore these from fts */
433 if (strcmp(entry->fts_accpath, ".") == 0 ||
434 strcmp(entry->fts_accpath, "..") == 0)
438 if (isdepth == 0 || /* depth off */
439 (ftsoptions & FTS_NOSTAT)) /* not stat()ing */
440 errx(1, "-delete: insecure options got turned on");
442 if (!(ftsoptions & FTS_PHYSICAL) || /* physical off */
443 (ftsoptions & FTS_LOGICAL)) /* or finally, logical on */
444 errx(1, "-delete: forbidden when symlinks are followed");
446 /* Potentially unsafe - do not accept relative paths whatsoever */
447 if (strchr(entry->fts_accpath, '/') != NULL)
448 errx(1, "-delete: %s: relative path potentially not safe",
451 /* Turn off user immutable bits if running as root */
452 if ((entry->fts_statp->st_flags & (UF_APPEND|UF_IMMUTABLE)) &&
453 !(entry->fts_statp->st_flags & (SF_APPEND|SF_IMMUTABLE)) &&
455 lchflags(entry->fts_accpath,
456 entry->fts_statp->st_flags &= ~(UF_APPEND|UF_IMMUTABLE));
458 /* rmdir directories, unlink everything else */
459 if (S_ISDIR(entry->fts_statp->st_mode)) {
460 if (rmdir(entry->fts_accpath) < 0 && errno != ENOTEMPTY)
461 warn("-delete: rmdir(%s)", entry->fts_path);
463 if (unlink(entry->fts_accpath) < 0)
464 warn("-delete: unlink(%s)", entry->fts_path);
472 c_delete(OPTION *option, char ***argvp __unused)
475 ftsoptions &= ~FTS_NOSTAT; /* no optimise */
476 isoutput = 1; /* possible output */
477 isdepth = 1; /* -depth implied */
479 return palloc(option);
486 * Always true, used for -maxdepth, -mindepth, -xdev, -follow, and -true
489 f_always_true(PLAN *plan __unused, FTSENT *entry __unused)
495 * -depth functions --
497 * With argument: True if the file is at level n.
498 * Without argument: Always true, causes descent of the directory hierarchy
499 * to be done so that all entries in a directory are acted on before the
503 f_depth(PLAN *plan, FTSENT *entry)
505 if (plan->flags & F_DEPTH)
506 COMPARE(entry->fts_level, plan->d_data);
512 c_depth(OPTION *option, char ***argvp)
517 new = palloc(option);
520 if (str && !(new->flags & F_DEPTH)) {
521 /* skip leading + or - */
522 if (*str == '+' || *str == '-')
525 if (*str == '+' || *str == '-')
528 new->flags |= F_DEPTH;
531 if (new->flags & F_DEPTH) { /* -depth n */
534 ndepth = nextarg(option, argvp);
535 new->d_data = find_parsenum(new, option->name, ndepth, NULL);
544 * -empty functions --
546 * True if the file or directory is empty
549 f_empty(PLAN *plan __unused, FTSENT *entry)
551 if (S_ISREG(entry->fts_statp->st_mode) &&
552 entry->fts_statp->st_size == 0)
554 if (S_ISDIR(entry->fts_statp->st_mode)) {
560 dir = opendir(entry->fts_accpath);
563 for (dp = readdir(dir); dp; dp = readdir(dir))
564 if (dp->d_name[0] != '.' ||
565 (dp->d_name[1] != '\0' &&
566 (dp->d_name[1] != '.' || dp->d_name[2] != '\0'))) {
577 c_empty(OPTION *option, char ***argvp __unused)
579 ftsoptions &= ~FTS_NOSTAT;
581 return palloc(option);
585 * [-exec | -execdir | -ok] utility [arg ... ] ; functions --
587 * True if the executed utility returns a zero value as exit status.
588 * The end of the primary expression is delimited by a semicolon. If
589 * "{}" occurs anywhere, it gets replaced by the current pathname,
590 * or, in the case of -execdir, the current basename (filename
591 * without leading directory prefix). For -exec and -ok,
592 * the current directory for the execution of utility is the same as
593 * the current directory when the find utility was started, whereas
594 * for -execdir, it is the directory the file resides in.
596 * The primary -ok differs from -exec in that it requests affirmation
597 * of the user before executing the utility.
600 f_exec(PLAN *plan, FTSENT *entry)
607 if (entry == NULL && plan->flags & F_EXECPLUS) {
608 if (plan->e_ppos == plan->e_pbnum)
610 plan->e_argv[plan->e_ppos] = NULL;
614 /* XXX - if file/dir ends in '/' this will not work -- can it? */
615 if ((plan->flags & F_EXECDIR) && \
616 (file = strrchr(entry->fts_path, '/')))
619 file = entry->fts_path;
621 if (plan->flags & F_EXECPLUS) {
622 if ((plan->e_argv[plan->e_ppos] = strdup(file)) == NULL)
624 plan->e_len[plan->e_ppos] = strlen(file);
625 plan->e_psize += plan->e_len[plan->e_ppos];
626 if (++plan->e_ppos < plan->e_pnummax &&
627 plan->e_psize < plan->e_psizemax)
629 plan->e_argv[plan->e_ppos] = NULL;
631 for (cnt = 0; plan->e_argv[cnt]; ++cnt)
632 if (plan->e_len[cnt])
633 brace_subst(plan->e_orig[cnt],
634 &plan->e_argv[cnt], file,
638 doexec: if ((plan->flags & F_NEEDOK) && !queryuser(plan->e_argv))
641 /* make sure find output is interspersed correctly with subprocesses */
645 switch (pid = fork()) {
650 /* change dir back from where we started */
651 if (!(plan->flags & F_EXECDIR) && fchdir(dotfd)) {
655 execvp(plan->e_argv[0], plan->e_argv);
656 warn("%s", plan->e_argv[0]);
659 if (plan->flags & F_EXECPLUS) {
660 while (--plan->e_ppos >= plan->e_pbnum)
661 free(plan->e_argv[plan->e_ppos]);
662 plan->e_ppos = plan->e_pbnum;
663 plan->e_psize = plan->e_pbsize;
665 pid = waitpid(pid, &status, 0);
666 return (pid != -1 && WIFEXITED(status) && !WEXITSTATUS(status));
670 * c_exec, c_execdir, c_ok --
671 * build three parallel arrays, one with pointers to the strings passed
672 * on the command line, one with (possibly duplicated) pointers to the
673 * argv array, and one with integer values that are lengths of the
674 * strings, but also flags meaning that the string has to be massaged.
677 c_exec(OPTION *option, char ***argvp)
679 PLAN *new; /* node returned */
682 char **argv, **ap, **ep, *p;
684 /* XXX - was in c_execdir, but seems unnecessary!?
685 ftsoptions &= ~FTS_NOSTAT;
689 /* XXX - this is a change from the previous coding */
690 new = palloc(option);
692 for (ap = argv = *argvp;; ++ap) {
695 "%s: no terminating \";\" or \"+\"", option->name);
698 if (**ap == '+' && ap != argv && strcmp(*(ap - 1), "{}") == 0) {
699 new->flags |= F_EXECPLUS;
705 errx(1, "%s: no command specified", option->name);
707 cnt = ap - *argvp + 1;
708 if (new->flags & F_EXECPLUS) {
709 new->e_ppos = new->e_pbnum = cnt - 2;
710 if ((argmax = sysconf(_SC_ARG_MAX)) == -1) {
711 warn("sysconf(_SC_ARG_MAX)");
712 argmax = _POSIX_ARG_MAX;
715 for (ep = environ; *ep != NULL; ep++)
716 argmax -= strlen(*ep) + 1 + sizeof(*ep);
717 argmax -= 1 + sizeof(*ep);
718 new->e_pnummax = argmax / 16;
719 argmax -= sizeof(char *) * new->e_pnummax;
721 errx(1, "no space for arguments");
722 new->e_psizemax = argmax;
724 cnt += new->e_pnummax + 1;
725 new->e_next = lastexecplus;
728 if ((new->e_argv = malloc(cnt * sizeof(char *))) == NULL)
730 if ((new->e_orig = malloc(cnt * sizeof(char *))) == NULL)
732 if ((new->e_len = malloc(cnt * sizeof(int))) == NULL)
735 for (argv = *argvp, cnt = 0; argv < ap; ++argv, ++cnt) {
736 new->e_orig[cnt] = *argv;
737 if (new->flags & F_EXECPLUS)
738 new->e_pbsize += strlen(*argv) + 1;
739 for (p = *argv; *p; ++p)
740 if (!(new->flags & F_EXECPLUS) && p[0] == '{' &&
742 if ((new->e_argv[cnt] =
743 malloc(MAXPATHLEN)) == NULL)
745 new->e_len[cnt] = MAXPATHLEN;
749 new->e_argv[cnt] = *argv;
753 if (new->flags & F_EXECPLUS) {
754 new->e_psize = new->e_pbsize;
756 for (i = 0; i < new->e_pnummax; i++) {
757 new->e_argv[cnt] = NULL;
764 new->e_argv[cnt] = new->e_orig[cnt] = NULL;
766 done: *argvp = argv + 1;
770 /* Finish any pending -exec ... {} + functions. */
778 (p->execute)(p, NULL);
784 f_flags(PLAN *plan, FTSENT *entry)
788 flags = entry->fts_statp->st_flags;
789 if (plan->flags & F_ATLEAST)
790 return (flags | plan->fl_flags) == flags &&
791 !(flags & plan->fl_notflags);
792 else if (plan->flags & F_ANY)
793 return (flags & plan->fl_flags) ||
794 (flags | plan->fl_notflags) != flags;
796 return flags == plan->fl_flags &&
797 !(plan->fl_flags & plan->fl_notflags);
801 c_flags(OPTION *option, char ***argvp)
805 u_long flags, notflags;
807 flags_str = nextarg(option, argvp);
808 ftsoptions &= ~FTS_NOSTAT;
810 new = palloc(option);
812 if (*flags_str == '-') {
813 new->flags |= F_ATLEAST;
815 } else if (*flags_str == '+') {
819 if (strtofflags(&flags_str, &flags, ¬flags) == 1)
820 errx(1, "%s: %s: illegal flags string", option->name, flags_str);
822 new->fl_flags = flags;
823 new->fl_notflags = notflags;
828 * -follow functions --
830 * Always true, causes symbolic links to be followed on a global
834 c_follow(OPTION *option, char ***argvp __unused)
836 ftsoptions &= ~FTS_PHYSICAL;
837 ftsoptions |= FTS_LOGICAL;
839 return palloc(option);
843 * -fstype functions --
845 * True if the file is of a certain type.
848 f_fstype(PLAN *plan, FTSENT *entry)
850 static dev_t curdev; /* need a guaranteed illegal dev value */
851 static int first = 1;
853 static int val_flags;
854 static char fstype[sizeof(sb.f_fstypename)];
855 char *p, save[2] = {0,0};
857 if ((plan->flags & F_MTMASK) == F_MTUNKNOWN)
860 /* Only check when we cross mount point. */
861 if (first || curdev != entry->fts_statp->st_dev) {
862 curdev = entry->fts_statp->st_dev;
865 * Statfs follows symlinks; find wants the link's filesystem,
866 * not where it points.
868 if (entry->fts_info == FTS_SL ||
869 entry->fts_info == FTS_SLNONE) {
870 if ((p = strrchr(entry->fts_accpath, '/')) != NULL)
873 p = entry->fts_accpath;
881 if (statfs(entry->fts_accpath, &sb))
882 err(1, "%s", entry->fts_accpath);
892 * Further tests may need both of these values, so
893 * always copy both of them.
895 val_flags = sb.f_flags;
896 strlcpy(fstype, sb.f_fstypename, sizeof(fstype));
898 switch (plan->flags & F_MTMASK) {
900 return val_flags & plan->mt_data;
902 return (strncmp(fstype, plan->c_data, sizeof(fstype)) == 0);
909 c_fstype(OPTION *option, char ***argvp)
914 fsname = nextarg(option, argvp);
915 ftsoptions &= ~FTS_NOSTAT;
917 new = palloc(option);
920 if (!strcmp(fsname, "local")) {
921 new->flags |= F_MTFLAG;
922 new->mt_data = MNT_LOCAL;
927 if (!strcmp(fsname, "rdonly")) {
928 new->flags |= F_MTFLAG;
929 new->mt_data = MNT_RDONLY;
935 new->flags |= F_MTTYPE;
936 new->c_data = fsname;
941 * -group gname functions --
943 * True if the file belongs to the group gname. If gname is numeric and
944 * an equivalent of the getgrnam() function does not return a valid group
945 * name, gname is taken as a group ID.
948 f_group(PLAN *plan, FTSENT *entry)
950 COMPARE(entry->fts_statp->st_gid, plan->g_data);
954 c_group(OPTION *option, char ***argvp)
961 gname = nextarg(option, argvp);
962 ftsoptions &= ~FTS_NOSTAT;
964 new = palloc(option);
968 if (gname[0] == '-' || gname[0] == '+')
971 if (gid == 0 && gname[0] != '0')
972 errx(1, "%s: %s: no such group", option->name, gname);
973 gid = find_parsenum(new, option->name, cp, NULL);
982 * -inum n functions --
984 * True if the file has inode # n.
987 f_inum(PLAN *plan, FTSENT *entry)
989 COMPARE(entry->fts_statp->st_ino, plan->i_data);
993 c_inum(OPTION *option, char ***argvp)
998 inum_str = nextarg(option, argvp);
999 ftsoptions &= ~FTS_NOSTAT;
1001 new = palloc(option);
1002 new->i_data = find_parsenum(new, option->name, inum_str, NULL);
1009 * True if the file has the same inode (eg hard link) FN
1012 /* f_samefile is just f_inum */
1014 c_samefile(OPTION *option, char ***argvp)
1020 fn = nextarg(option, argvp);
1021 ftsoptions &= ~FTS_NOSTAT;
1023 new = palloc(option);
1026 new->i_data = sb.st_ino;
1031 * -links n functions --
1033 * True if the file has n links.
1036 f_links(PLAN *plan, FTSENT *entry)
1038 COMPARE(entry->fts_statp->st_nlink, plan->l_data);
1042 c_links(OPTION *option, char ***argvp)
1047 nlinks = nextarg(option, argvp);
1048 ftsoptions &= ~FTS_NOSTAT;
1050 new = palloc(option);
1051 new->l_data = (nlink_t)find_parsenum(new, option->name, nlinks, NULL);
1058 * Always true - prints the current entry to stdout in "ls" format.
1061 f_ls(PLAN *plan __unused, FTSENT *entry)
1063 printlong(entry->fts_path, entry->fts_accpath, entry->fts_statp);
1068 c_ls(OPTION *option, char ***argvp __unused)
1070 ftsoptions &= ~FTS_NOSTAT;
1073 return palloc(option);
1077 * -name functions --
1079 * True if the basename of the filename being examined
1080 * matches pattern using Pattern Matching Notation S3.14
1083 f_name(PLAN *plan, FTSENT *entry)
1088 if (plan->flags & F_LINK) {
1090 if (readlink(entry->fts_path, fn, sizeof(fn)) == -1)
1093 name = entry->fts_name;
1094 return !fnmatch(plan->c_data, name,
1095 plan->flags & F_IGNCASE ? FNM_CASEFOLD : 0);
1099 c_name(OPTION *option, char ***argvp)
1104 pattern = nextarg(option, argvp);
1105 new = palloc(option);
1106 new->c_data = pattern;
1111 * -newer file functions --
1113 * True if the current file has been modified more recently
1114 * then the modification time of the file named by the pathname
1118 f_newer(PLAN *plan, FTSENT *entry)
1120 if (plan->flags & F_TIME_C)
1121 return entry->fts_statp->st_ctime > plan->t_data;
1122 else if (plan->flags & F_TIME_A)
1123 return entry->fts_statp->st_atime > plan->t_data;
1124 else if (plan->flags & F_TIME_B)
1125 return entry->fts_statp->st_birthtime > plan->t_data;
1127 return entry->fts_statp->st_mtime > plan->t_data;
1131 c_newer(OPTION *option, char ***argvp)
1137 fn_or_tspec = nextarg(option, argvp);
1138 ftsoptions &= ~FTS_NOSTAT;
1140 new = palloc(option);
1141 /* compare against what */
1142 if (option->flags & F_TIME2_T) {
1143 new->t_data = get_date(fn_or_tspec, (struct timeb *) 0);
1144 if (new->t_data == (time_t) -1)
1145 errx(1, "Can't parse date/time: %s", fn_or_tspec);
1147 if (stat(fn_or_tspec, &sb))
1148 err(1, "%s", fn_or_tspec);
1149 if (option->flags & F_TIME2_C)
1150 new->t_data = sb.st_ctime;
1151 else if (option->flags & F_TIME2_A)
1152 new->t_data = sb.st_atime;
1153 else if (option->flags & F_TIME2_B)
1154 new->t_data = sb.st_birthtime;
1156 new->t_data = sb.st_mtime;
1162 * -nogroup functions --
1164 * True if file belongs to a user ID for which the equivalent
1165 * of the getgrnam() 9.2.1 [POSIX.1] function returns NULL.
1168 f_nogroup(PLAN *plan __unused, FTSENT *entry)
1170 return group_from_gid(entry->fts_statp->st_gid, 1) == NULL;
1174 c_nogroup(OPTION *option, char ***argvp __unused)
1176 ftsoptions &= ~FTS_NOSTAT;
1178 return palloc(option);
1182 * -nouser functions --
1184 * True if file belongs to a user ID for which the equivalent
1185 * of the getpwuid() 9.2.2 [POSIX.1] function returns NULL.
1188 f_nouser(PLAN *plan __unused, FTSENT *entry)
1190 return user_from_uid(entry->fts_statp->st_uid, 1) == NULL;
1194 c_nouser(OPTION *option, char ***argvp __unused)
1196 ftsoptions &= ~FTS_NOSTAT;
1198 return palloc(option);
1202 * -path functions --
1204 * True if the path of the filename being examined
1205 * matches pattern using Pattern Matching Notation S3.14
1208 f_path(PLAN *plan, FTSENT *entry)
1210 return !fnmatch(plan->c_data, entry->fts_path,
1211 plan->flags & F_IGNCASE ? FNM_CASEFOLD : 0);
1214 /* c_path is the same as c_name */
1217 * -perm functions --
1219 * The mode argument is used to represent file mode bits. If it starts
1220 * with a leading digit, it's treated as an octal mode, otherwise as a
1224 f_perm(PLAN *plan, FTSENT *entry)
1228 mode = entry->fts_statp->st_mode &
1229 (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO);
1230 if (plan->flags & F_ATLEAST)
1231 return (plan->m_data | mode) == mode;
1232 else if (plan->flags & F_ANY)
1233 return (mode & plan->m_data);
1235 return mode == plan->m_data;
1240 c_perm(OPTION *option, char ***argvp)
1246 perm = nextarg(option, argvp);
1247 ftsoptions &= ~FTS_NOSTAT;
1249 new = palloc(option);
1252 new->flags |= F_ATLEAST;
1254 } else if (*perm == '+') {
1255 new->flags |= F_ANY;
1259 if ((set = setmode(perm)) == NULL)
1260 errx(1, "%s: %s: illegal mode string", option->name, perm);
1262 new->m_data = getmode(set, 0);
1268 * -print functions --
1270 * Always true, causes the current pathname to be written to
1274 f_print(PLAN *plan __unused, FTSENT *entry)
1276 (void)puts(entry->fts_path);
1281 c_print(OPTION *option, char ***argvp __unused)
1285 return palloc(option);
1289 * -print0 functions --
1291 * Always true, causes the current pathname to be written to
1292 * standard output followed by a NUL character
1295 f_print0(PLAN *plan __unused, FTSENT *entry)
1297 fputs(entry->fts_path, stdout);
1298 fputc('\0', stdout);
1302 /* c_print0 is the same as c_print */
1305 * -prune functions --
1307 * Prune a portion of the hierarchy.
1310 f_prune(PLAN *plan __unused, FTSENT *entry)
1312 if (fts_set(tree, entry, FTS_SKIP))
1313 err(1, "%s", entry->fts_path);
1317 /* c_prune == c_simple */
1320 * -regex functions --
1322 * True if the whole path of the file matches pattern using
1323 * regular expression.
1326 f_regex(PLAN *plan, FTSENT *entry)
1333 char errbuf[LINE_MAX];
1336 pre = plan->re_data;
1337 str = entry->fts_path;
1344 errcode = regexec(pre, str, 1, &pmatch, REG_STARTEND);
1346 if (errcode != 0 && errcode != REG_NOMATCH) {
1347 regerror(errcode, pre, errbuf, sizeof errbuf);
1349 plan->flags & F_IGNCASE ? "-iregex" : "-regex", errbuf);
1352 if (errcode == 0 && pmatch.rm_so == 0 && pmatch.rm_eo == len)
1359 c_regex(OPTION *option, char ***argvp)
1365 char errbuf[LINE_MAX];
1367 if ((pre = malloc(sizeof(regex_t))) == NULL)
1370 pattern = nextarg(option, argvp);
1372 if ((errcode = regcomp(pre, pattern,
1373 regexp_flags | (option->flags & F_IGNCASE ? REG_ICASE : 0))) != 0) {
1374 regerror(errcode, pre, errbuf, sizeof errbuf);
1375 errx(1, "%s: %s: %s",
1376 option->flags & F_IGNCASE ? "-iregex" : "-regex",
1380 new = palloc(option);
1386 /* c_simple covers c_prune, c_openparen, c_closeparen, c_not, c_or, c_true, c_false */
1389 c_simple(OPTION *option, char ***argvp __unused)
1391 return palloc(option);
1395 * -size n[c] functions --
1397 * True if the file size in bytes, divided by an implementation defined
1398 * value and rounded up to the next integer, is n. If n is followed by
1399 * one of c k M G T P, the size is in bytes, kilobytes,
1400 * megabytes, gigabytes, terabytes or petabytes respectively.
1402 #define FIND_SIZE 512
1403 static int divsize = 1;
1406 f_size(PLAN *plan, FTSENT *entry)
1410 size = divsize ? (entry->fts_statp->st_size + FIND_SIZE - 1) /
1411 FIND_SIZE : entry->fts_statp->st_size;
1412 COMPARE(size, plan->o_data);
1416 c_size(OPTION *option, char ***argvp)
1423 size_str = nextarg(option, argvp);
1424 ftsoptions &= ~FTS_NOSTAT;
1426 new = palloc(option);
1428 new->o_data = find_parsenum(new, option->name, size_str, &endch);
1429 if (endch != '\0') {
1433 case 'c': /* characters */
1436 case 'k': /* kilobytes 1<<10 */
1439 case 'M': /* megabytes 1<<20 */
1442 case 'G': /* gigabytes 1<<30 */
1443 scale = 0x40000000LL;
1445 case 'T': /* terabytes 1<<40 */
1446 scale = 0x10000000000LL;
1448 case 'P': /* petabytes 1<<50 */
1449 scale = 0x4000000000000LL;
1452 errx(1, "%s: %s: illegal trailing character",
1453 option->name, size_str);
1456 if (new->o_data > QUAD_MAX / scale)
1457 errx(1, "%s: %s: value too large",
1458 option->name, size_str);
1459 new->o_data *= scale;
1465 * -type c functions --
1467 * True if the type of the file is c, where c is b, c, d, p, f or w
1468 * for block special file, character special file, directory, FIFO,
1469 * regular file or whiteout respectively.
1472 f_type(PLAN *plan, FTSENT *entry)
1474 return (entry->fts_statp->st_mode & S_IFMT) == plan->m_data;
1478 c_type(OPTION *option, char ***argvp)
1484 typestring = nextarg(option, argvp);
1485 ftsoptions &= ~FTS_NOSTAT;
1487 switch (typestring[0]) {
1512 ftsoptions |= FTS_WHITEOUT;
1514 #endif /* FTS_WHITEOUT */
1516 errx(1, "%s: %s: unknown type", option->name, typestring);
1519 new = palloc(option);
1525 * -user uname functions --
1527 * True if the file belongs to the user uname. If uname is numeric and
1528 * an equivalent of the getpwnam() S9.2.2 [POSIX.1] function does not
1529 * return a valid user name, uname is taken as a user ID.
1532 f_user(PLAN *plan, FTSENT *entry)
1534 COMPARE(entry->fts_statp->st_uid, plan->u_data);
1538 c_user(OPTION *option, char ***argvp)
1545 username = nextarg(option, argvp);
1546 ftsoptions &= ~FTS_NOSTAT;
1548 new = palloc(option);
1549 p = getpwnam(username);
1551 char* cp = username;
1552 if( username[0] == '-' || username[0] == '+' )
1554 uid = atoi(username);
1555 if (uid == 0 && username[0] != '0')
1556 errx(1, "%s: %s: no such user", option->name, username);
1557 uid = find_parsenum(new, option->name, cp, NULL);
1566 * -xdev functions --
1568 * Always true, causes find not to descend past directories that have a
1569 * different device ID (st_dev, see stat() S5.6.2 [POSIX.1])
1572 c_xdev(OPTION *option, char ***argvp __unused)
1574 ftsoptions |= FTS_XDEV;
1576 return palloc(option);
1580 * ( expression ) functions --
1582 * True if expression is true.
1585 f_expr(PLAN *plan, FTSENT *entry)
1590 for (p = plan->p_data[0];
1591 p && (state = (p->execute)(p, entry)); p = p->next);
1596 * f_openparen and f_closeparen nodes are temporary place markers. They are
1597 * eliminated during phase 2 of find_formplan() --- the '(' node is converted
1598 * to a f_expr node containing the expression and the ')' node is discarded.
1599 * The functions themselves are only used as constants.
1603 f_openparen(PLAN *plan __unused, FTSENT *entry __unused)
1609 f_closeparen(PLAN *plan __unused, FTSENT *entry __unused)
1614 /* c_openparen == c_simple */
1615 /* c_closeparen == c_simple */
1618 * AND operator. Since AND is implicit, no node is allocated.
1621 c_and(OPTION *option __unused, char ***argvp __unused)
1627 * ! expression functions --
1629 * Negation of a primary; the unary NOT operator.
1632 f_not(PLAN *plan, FTSENT *entry)
1637 for (p = plan->p_data[0];
1638 p && (state = (p->execute)(p, entry)); p = p->next);
1642 /* c_not == c_simple */
1645 * expression -o expression functions --
1647 * Alternation of primaries; the OR operator. The second expression is
1648 * not evaluated if the first expression is true.
1651 f_or(PLAN *plan, FTSENT *entry)
1656 for (p = plan->p_data[0];
1657 p && (state = (p->execute)(p, entry)); p = p->next);
1662 for (p = plan->p_data[1];
1663 p && (state = (p->execute)(p, entry)); p = p->next);
1667 /* c_or == c_simple */
1675 f_false(PLAN *plan __unused, FTSENT *entry __unused)
1680 /* c_false == c_simple */
1688 f_quit(PLAN *plan __unused, FTSENT *entry __unused)
1693 /* c_quit == c_simple */