* Reworked by David Douthitt <n9ubh@callsign.net> and
* Matt Kraai <kraai@alumni.carnegiemellon.edu>.
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
+ * Licensed under the GPL version 2, see the file LICENSE in this tarball.
+ */
+
+/* findutils-4.1.20:
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * # find file.txt -exec 'echo {}' '{} {}' ';'
+ * find: echo file.txt: No such file or directory
+ * # find file.txt -exec 'echo' '{} {}' '; '
+ * find: missing argument to `-exec'
+ * # find file.txt -exec 'echo {}' '{} {}' ';' junk
+ * find: paths must precede expression
+ * # find file.txt -exec 'echo {}' '{} {}' ';' junk ';'
+ * find: paths must precede expression
+ * # find file.txt -exec 'echo' '{} {}' ';'
+ * file.txt file.txt
+ * (strace: execve("/bin/echo", ["echo", "file.txt file.txt"], [ 30 vars ]))
+ * # find file.txt -exec 'echo' '{} {}' ';' -print -exec pwd ';'
+ * file.txt file.txt
+ * file.txt
+ * /tmp
+ * # find -name '*.c' -o -name '*.h'
+ * [shows files, *.c and *.h intermixed]
+ * # find file.txt -name '*f*' -o -name '*t*'
+ * file.txt
+ * # find file.txt -name '*z*' -o -name '*t*'
+ * file.txt
+ * # find file.txt -name '*f*' -o -name '*z*'
+ * file.txt
*
+ * # find t z -name '*t*' -print -o -name '*z*'
+ * t
+ * # find t z t z -name '*t*' -o -name '*z*' -print
+ * z
+ * z
+ * # find t z t z '(' -name '*t*' -o -name '*z*' ')' -o -print
+ * (no output)
*/
-#include <stdio.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <string.h>
-#include <stdlib.h>
-#include <fnmatch.h>
-#include <time.h>
-#include <ctype.h>
#include "busybox.h"
+#include <fnmatch.h>
-//XXX just found out about libbb/messages.c . maybe move stuff there ? - ghoz
-static const char msg_req_arg[] = "option `%s' requires an argument";
-static const char msg_invalid_arg[] = "invalid argument `%s' to `%s'";
+USE_FEATURE_FIND_XDEV(static dev_t *xdev_dev;)
+USE_FEATURE_FIND_XDEV(static int xdev_count;)
-static char *pattern;
+typedef int (*action_fp)(const char *fileName, struct stat *statbuf, void *);
-#ifdef CONFIG_FEATURE_FIND_TYPE
-static int type_mask = 0;
-#endif
+typedef struct {
+ action_fp f;
+} action;
+#define ACTS(name, arg...) typedef struct { action a; arg; } action_##name;
+#define ACTF(name) static int func_##name(const char *fileName, struct stat *statbuf, action_##name* ap)
+ ACTS(print)
+ ACTS(name, char *pattern;)
+USE_FEATURE_FIND_PRINT0(ACTS(print0))
+USE_FEATURE_FIND_TYPE( ACTS(type, int type_mask;))
+USE_FEATURE_FIND_PERM( ACTS(perm, char perm_char; int perm_mask;))
+USE_FEATURE_FIND_MTIME( ACTS(mtime, char mtime_char; int mtime_days;))
+USE_FEATURE_FIND_MMIN( ACTS(mmin, char mmin_char; int mmin_mins;))
+USE_FEATURE_FIND_NEWER( ACTS(newer, time_t newer_mtime;))
+USE_FEATURE_FIND_INUM( ACTS(inum, ino_t inode_num;))
+USE_FEATURE_FIND_EXEC( ACTS(exec, char **exec_argv; int *subst_count; int exec_argc;))
+USE_DESKTOP( ACTS(paren, action ***subexpr;))
+USE_DESKTOP( ACTS(prune))
-#ifdef CONFIG_FEATURE_FIND_PERM
-static char perm_char = 0;
-static int perm_mask = 0;
-#endif
+static action ***actions;
+static int need_print = 1;
-#ifdef CONFIG_FEATURE_FIND_MTIME
-static char mtime_char;
-static int mtime_days;
-#endif
+static inline int one_char(const char* str, char c)
+{
+ return (str[0] == c && str[1] == '\0');
+}
-#ifdef CONFIG_FEATURE_FIND_MMIN
-static char mmin_char;
-static int mmin_mins;
-#endif
-#ifdef CONFIG_FEATURE_FIND_XDEV
-static dev_t *xdev_dev;
-static int xdev_count = 0;
-#endif
+static int count_subst(const char *str)
+{
+ int count = 0;
+ while ((str = strstr(str, "{}"))) {
+ count++;
+ str++;
+ }
+ return count;
+}
-#ifdef CONFIG_FEATURE_FIND_NEWER
-static time_t newer_mtime;
-#endif
-#ifdef CONFIG_FEATURE_FIND_INUM
-static ino_t inode_num;
-#endif
+static char* subst(const char *src, int count, const char* filename)
+{
+ char *buf, *dst, *end;
+ int flen = strlen(filename);
+ /* we replace each '{}' with filename: growth by strlen-2 */
+ buf = dst = xmalloc(strlen(src) + count*(flen-2) + 1);
+ while ((end = strstr(src, "{}"))) {
+ memcpy(dst, src, end - src);
+ dst += end - src;
+ src = end + 2;
+ memcpy(dst, filename, flen);
+ dst += flen;
+ }
+ strcpy(dst, src);
+ return buf;
+}
-#ifdef CONFIG_FEATURE_FIND_EXEC
-static char **exec_str;
-static int num_matches;
-static int exec_opt;
-#endif
-static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
+static int exec_actions(action ***appp, const char *fileName, struct stat *statbuf)
{
- if (pattern != NULL) {
- const char *tmp = strrchr(fileName, '/');
+ int cur_group;
+ int cur_action;
+ int rc = TRUE;
+ action **app, *ap;
- if (tmp == NULL)
- tmp = fileName;
- else
- tmp++;
- if (!(fnmatch(pattern, tmp, FNM_PERIOD) == 0))
- goto no_match;
- }
-#ifdef CONFIG_FEATURE_FIND_TYPE
- if (type_mask != 0) {
- if (!((statbuf->st_mode & S_IFMT) == type_mask))
- goto no_match;
+ cur_group = -1;
+ while ((app = appp[++cur_group])) {
+ cur_action = -1;
+ do {
+ ap = app[++cur_action];
+ } while (ap && (rc = ap->f(fileName, statbuf, ap)));
+ if (!ap) {
+ /* all actions in group were successful */
+ break;
+ }
}
+ return rc;
+}
+
+
+ACTF(name)
+{
+ const char *tmp = strrchr(fileName, '/');
+ if (tmp == NULL)
+ tmp = fileName;
+ else
+ tmp++;
+ return fnmatch(ap->pattern, tmp, FNM_PERIOD) == 0;
+}
+#if ENABLE_FEATURE_FIND_TYPE
+ACTF(type)
+{
+ return ((statbuf->st_mode & S_IFMT) == ap->type_mask);
+}
#endif
-#ifdef CONFIG_FEATURE_FIND_PERM
- if (perm_mask != 0) {
- if (!((isdigit(perm_char) && (statbuf->st_mode & 07777) == perm_mask) ||
- (perm_char == '-' && (statbuf->st_mode & perm_mask) == perm_mask) ||
- (perm_char == '+' && (statbuf->st_mode & perm_mask) != 0)))
- goto no_match;
- }
+#if ENABLE_FEATURE_FIND_PERM
+ACTF(perm)
+{
+ return !((isdigit(ap->perm_char) && (statbuf->st_mode & 07777) == ap->perm_mask)
+ || (ap->perm_char == '-' && (statbuf->st_mode & ap->perm_mask) == ap->perm_mask)
+ || (ap->perm_char == '+' && (statbuf->st_mode & ap->perm_mask) != 0));
+}
#endif
-#ifdef CONFIG_FEATURE_FIND_MTIME
- if (mtime_char != 0) {
- time_t file_age = time(NULL) - statbuf->st_mtime;
- time_t mtime_secs = mtime_days * 24 * 60 * 60;
- if (!((isdigit(mtime_char) && file_age >= mtime_secs &&
- file_age < mtime_secs + 24 * 60 * 60) ||
- (mtime_char == '+' && file_age >= mtime_secs + 24 * 60 * 60) ||
- (mtime_char == '-' && file_age < mtime_secs)))
- goto no_match;
- }
+#if ENABLE_FEATURE_FIND_MTIME
+ACTF(mtime)
+{
+ time_t file_age = time(NULL) - statbuf->st_mtime;
+ time_t mtime_secs = ap->mtime_days * 24 * 60 * 60;
+ return !((isdigit(ap->mtime_char) && file_age >= mtime_secs
+ && file_age < mtime_secs + 24 * 60 * 60)
+ || (ap->mtime_char == '+' && file_age >= mtime_secs + 24 * 60 * 60)
+ || (ap->mtime_char == '-' && file_age < mtime_secs));
+}
#endif
-#ifdef CONFIG_FEATURE_FIND_MMIN
- if (mmin_char != 0) {
- time_t file_age = time(NULL) - statbuf->st_mtime;
- time_t mmin_secs = mmin_mins * 60;
- if (!((isdigit(mmin_char) && file_age >= mmin_secs &&
- file_age < mmin_secs + 60) ||
- (mmin_char == '+' && file_age >= mmin_secs + 60) ||
- (mmin_char == '-' && file_age < mmin_secs)))
- goto no_match;
- }
+#if ENABLE_FEATURE_FIND_MMIN
+ACTF(mmin)
+{
+ time_t file_age = time(NULL) - statbuf->st_mtime;
+ time_t mmin_secs = ap->mmin_mins * 60;
+ return !((isdigit(ap->mmin_char) && file_age >= mmin_secs
+ && file_age < mmin_secs + 60)
+ || (ap->mmin_char == '+' && file_age >= mmin_secs + 60)
+ || (ap->mmin_char == '-' && file_age < mmin_secs));
+}
#endif
-#ifdef CONFIG_FEATURE_FIND_XDEV
- if (xdev_count) {
- int i;
- for (i=0; i<xdev_count; i++) {
- if (xdev_dev[i] == statbuf-> st_dev)
- break;
- }
- if (i == xdev_count) {
- if(S_ISDIR(statbuf->st_mode))
- return SKIP;
- else
- goto no_match;
- }
- }
+#if ENABLE_FEATURE_FIND_NEWER
+ACTF(newer)
+{
+ return (ap->newer_mtime >= statbuf->st_mtime);
+}
#endif
-#ifdef CONFIG_FEATURE_FIND_NEWER
- if (newer_mtime != 0) {
- time_t file_age = newer_mtime - statbuf->st_mtime;
- if (file_age >= 0)
- goto no_match;
- }
+#if ENABLE_FEATURE_FIND_INUM
+ACTF(inum)
+{
+ return (statbuf->st_ino != ap->inode_num);
+}
#endif
-#ifdef CONFIG_FEATURE_FIND_INUM
- if (inode_num != 0) {
- if (!(statbuf->st_ino == inode_num))
- goto no_match;
- }
+#if ENABLE_FEATURE_FIND_EXEC
+ACTF(exec)
+{
+ int i, rc;
+ char *argv[ap->exec_argc+1];
+ for (i = 0; i < ap->exec_argc; i++)
+ argv[i] = subst(ap->exec_argv[i], ap->subst_count[i], fileName);
+ argv[i] = NULL; /* terminate the list */
+ errno = 0;
+ rc = wait4pid(spawn(argv));
+ if (errno)
+ bb_perror_msg("%s", argv[0]);
+ for (i = 0; i < ap->exec_argc; i++)
+ free(argv[i]);
+ return rc == 0; /* return 1 if success */
+}
+#endif
+
+#if ENABLE_FEATURE_FIND_PRINT0
+ACTF(print0)
+{
+ printf("%s%c", fileName, '\0');
+ return TRUE;
+}
#endif
-#ifdef CONFIG_FEATURE_FIND_EXEC
- if (exec_opt) {
+
+ACTF(print)
+{
+ puts(fileName);
+ return TRUE;
+}
+
+#if ENABLE_DESKTOP
+ACTF(paren)
+{
+ return exec_actions(ap->subexpr, fileName, statbuf);
+}
+/*
+ * -prune: if -depth is not given, return true and do not descend
+ * current dir; if -depth is given, return false with no effect.
+ * Example:
+ * find dir -name 'asm-*' -prune -o -name '*.[chS]' -print
+ */
+ACTF(prune)
+{
+ return SKIP;
+}
+#endif
+
+
+static int fileAction(const char *fileName, struct stat *statbuf, void* junk, int depth)
+{
+ int rc;
+#ifdef CONFIG_FEATURE_FIND_XDEV
+ if (S_ISDIR(statbuf->st_mode) && xdev_count) {
int i;
- char *cmd_string = "";
- for (i = 0; i < num_matches; i++)
- cmd_string = bb_xasprintf("%s%s%s", cmd_string, exec_str[i], fileName);
- cmd_string = bb_xasprintf("%s%s", cmd_string, exec_str[num_matches]);
- system(cmd_string);
- goto no_match;
+ for (i = 0; i < xdev_count; i++) {
+ if (xdev_dev[i] != statbuf->st_dev)
+ return SKIP;
+ }
}
#endif
-
- puts(fileName);
-no_match:
- return (TRUE);
+ rc = exec_actions(actions, fileName, statbuf);
+ /* Had no explicit -print[0] or -exec? then print */
+ if (rc && need_print)
+ puts(fileName);
+ /* Cannot return 0: our caller, recursive_action(),
+ * will perror() and skip dirs (if called on dir) */
+ return rc == 0 ? TRUE : rc;
}
-#ifdef CONFIG_FEATURE_FIND_TYPE
+
+#if ENABLE_FEATURE_FIND_TYPE
static int find_type(char *type)
{
int mask = 0;
switch (type[0]) {
- case 'b':
- mask = S_IFBLK;
- break;
- case 'c':
- mask = S_IFCHR;
- break;
- case 'd':
- mask = S_IFDIR;
- break;
- case 'p':
- mask = S_IFIFO;
- break;
- case 'f':
- mask = S_IFREG;
- break;
- case 'l':
- mask = S_IFLNK;
- break;
- case 's':
- mask = S_IFSOCK;
- break;
+ case 'b':
+ mask = S_IFBLK;
+ break;
+ case 'c':
+ mask = S_IFCHR;
+ break;
+ case 'd':
+ mask = S_IFDIR;
+ break;
+ case 'p':
+ mask = S_IFIFO;
+ break;
+ case 'f':
+ mask = S_IFREG;
+ break;
+ case 'l':
+ mask = S_IFLNK;
+ break;
+ case 's':
+ mask = S_IFSOCK;
+ break;
}
if (mask == 0 || type[1] != '\0')
- bb_error_msg_and_die(msg_invalid_arg, type, "-type");
+ bb_error_msg_and_die(bb_msg_invalid_arg, type, "-type");
return mask;
}
#endif
-int find_main(int argc, char **argv)
+action*** parse_params(char **argv)
{
- int dereference = FALSE;
- int i, firstopt, status = EXIT_SUCCESS;
+ action*** appp;
+ int cur_group = 0;
+ int cur_action = 0;
- for (firstopt = 1; firstopt < argc; firstopt++) {
- if (argv[firstopt][0] == '-')
- break;
+ action* alloc_action(int sizeof_struct, action_fp f)
+ {
+ action *ap;
+ appp[cur_group] = xrealloc(appp[cur_group], (cur_action+2) * sizeof(*appp));
+ appp[cur_group][cur_action++] = ap = xmalloc(sizeof_struct);
+ appp[cur_group][cur_action] = NULL;
+ ap->f = f;
+ return ap;
}
+#define ALLOC_ACTION(name) (action_##name*)alloc_action(sizeof(action_##name), (action_fp) func_##name)
- /* Parse any options */
- for (i = firstopt; i < argc; i++) {
- if (strcmp(argv[i], "-follow") == 0)
- dereference = TRUE;
- else if (strcmp(argv[i], "-print") == 0) {
- ;
- }
- else if (strcmp(argv[i], "-name") == 0) {
- if (++i == argc)
- bb_error_msg_and_die(msg_req_arg, "-name");
- pattern = argv[i];
-#ifdef CONFIG_FEATURE_FIND_TYPE
- } else if (strcmp(argv[i], "-type") == 0) {
- if (++i == argc)
- bb_error_msg_and_die(msg_req_arg, "-type");
- type_mask = find_type(argv[i]);
+ appp = xzalloc(2 * sizeof(*appp)); /* appp[0],[1] == NULL */
+
+// Actions have side effects and return a true or false value
+// We implement: -print, -print0, -exec
+
+// The rest are tests.
+
+// Tests and actions are grouped by operators
+// ( expr ) Force precedence
+// ! expr True if expr is false
+// -not expr Same as ! expr
+// expr1 [-a[nd]] expr2 And; expr2 is not evaluated if expr1 is false
+// expr1 -o[r] expr2 Or; expr2 is not evaluated if expr1 is true
+// expr1 , expr2 List; both expr1 and expr2 are always evaluated
+// We implement: (), -a, -o
+
+ while (*argv) {
+ char *arg = argv[0];
+ char *arg1 = argv[1];
+ /* --- Operators --- */
+ if (strcmp(arg, "-a") == 0
+ USE_DESKTOP(|| strcmp(arg, "-and") == 0)
+ ) {
+ /* no special handling required */
+ }
+ else if (strcmp(arg, "-o") == 0
+ USE_DESKTOP(|| strcmp(arg, "-or") == 0)
+ ) {
+ /* start new OR group */
+ cur_group++;
+ appp = xrealloc(appp, (cur_group+2) * sizeof(*appp));
+ appp[cur_group] = NULL;
+ appp[cur_group+1] = NULL;
+ cur_action = 0;
+ }
+
+ /* --- Tests and actions --- */
+ else if (strcmp(arg, "-print") == 0) {
+ need_print = 0;
+ (void) ALLOC_ACTION(print);
+ }
+#if ENABLE_FEATURE_FIND_PRINT0
+ else if (strcmp(arg, "-print0") == 0) {
+ need_print = 0;
+ (void) ALLOC_ACTION(print0);
+ }
#endif
-#ifdef CONFIG_FEATURE_FIND_PERM
- } else if (strcmp(argv[i], "-perm") == 0) {
- char *end;
- if (++i == argc)
- bb_error_msg_and_die(msg_req_arg, "-perm");
- perm_mask = strtol(argv[i], &end, 8);
- if ((end[0] != '\0') || (perm_mask > 07777))
- bb_error_msg_and_die(msg_invalid_arg, argv[i], "-perm");
- if ((perm_char = argv[i][0]) == '-')
- perm_mask = -perm_mask;
+ else if (strcmp(arg, "-name") == 0) {
+ action_name *ap;
+ if (!*++argv)
+ bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ ap = ALLOC_ACTION(name);
+ ap->pattern = arg1;
+ }
+#if ENABLE_FEATURE_FIND_TYPE
+ else if (strcmp(arg, "-type") == 0) {
+ action_type *ap;
+ if (!*++argv)
+ bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ ap = ALLOC_ACTION(type);
+ ap->type_mask = find_type(arg1);
+ }
#endif
-#ifdef CONFIG_FEATURE_FIND_MTIME
- } else if (strcmp(argv[i], "-mtime") == 0) {
- char *end;
- if (++i == argc)
- bb_error_msg_and_die(msg_req_arg, "-mtime");
- mtime_days = strtol(argv[i], &end, 10);
- if (end[0] != '\0')
- bb_error_msg_and_die(msg_invalid_arg, argv[i], "-mtime");
- if ((mtime_char = argv[i][0]) == '-')
- mtime_days = -mtime_days;
+#if ENABLE_FEATURE_FIND_PERM
+/* TODO:
+ * -perm mode File's permission bits are exactly mode (octal or symbolic).
+ * Symbolic modes use mode 0 as a point of departure.
+ * -perm -mode All of the permission bits mode are set for the file.
+ * -perm +mode Any of the permission bits mode are set for the file.
+ */
+ else if (strcmp(arg, "-perm") == 0) {
+ action_perm *ap;
+ if (!*++argv)
+ bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ ap = ALLOC_ACTION(perm);
+ ap->perm_mask = xstrtol_range(arg1, 8, 0, 07777);
+ ap->perm_char = arg1[0];
+ if (ap->perm_char == '-')
+ ap->perm_mask = -ap->perm_mask;
+ }
#endif
-#ifdef CONFIG_FEATURE_FIND_MMIN
- } else if (strcmp(argv[i], "-mmin") == 0) {
- char *end;
- if (++i == argc)
- bb_error_msg_and_die(msg_req_arg, "-mmin");
- mmin_mins = strtol(argv[i], &end, 10);
- if (end[0] != '\0')
- bb_error_msg_and_die(msg_invalid_arg, argv[i], "-mmin");
- if ((mmin_char = argv[i][0]) == '-')
- mmin_mins = -mmin_mins;
+#if ENABLE_FEATURE_FIND_MTIME
+ else if (strcmp(arg, "-mtime") == 0) {
+ action_mtime *ap;
+ if (!*++argv)
+ bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ ap = ALLOC_ACTION(mtime);
+ ap->mtime_days = xatol(arg1);
+ ap->mtime_char = arg1[0];
+ if (ap->mtime_char == '-')
+ ap->mtime_days = -ap->mtime_days;
+ }
#endif
-#ifdef CONFIG_FEATURE_FIND_XDEV
- } else if (strcmp(argv[i], "-xdev") == 0) {
- struct stat stbuf;
-
- xdev_count = ( firstopt - 1 ) ? ( firstopt - 1 ) : 1;
- xdev_dev = xmalloc ( xdev_count * sizeof( dev_t ));
-
- if ( firstopt == 1 ) {
- if ( stat ( ".", &stbuf ) < 0 )
- bb_error_msg_and_die("could not stat '.'" );
- xdev_dev [0] = stbuf. st_dev;
- }
- else {
-
- for (i = 1; i < firstopt; i++) {
- if ( stat ( argv [i], &stbuf ) < 0 )
- bb_error_msg_and_die("could not stat '%s'", argv [i] );
- xdev_dev [i-1] = stbuf. st_dev;
- }
- }
+#if ENABLE_FEATURE_FIND_MMIN
+ else if (strcmp(arg, "-mmin") == 0) {
+ action_mmin *ap;
+ if (!*++argv)
+ bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ ap = ALLOC_ACTION(mmin);
+ ap->mmin_mins = xatol(arg1);
+ ap->mmin_char = arg1[0];
+ if (ap->mmin_char == '-')
+ ap->mmin_mins = -ap->mmin_mins;
+ }
#endif
-#ifdef CONFIG_FEATURE_FIND_NEWER
- } else if (strcmp(argv[i], "-newer") == 0) {
+#if ENABLE_FEATURE_FIND_NEWER
+ else if (strcmp(arg, "-newer") == 0) {
+ action_newer *ap;
struct stat stat_newer;
- if (++i == argc)
- bb_error_msg_and_die(msg_req_arg, "-newer");
- if (stat (argv[i], &stat_newer) != 0)
- bb_error_msg_and_die("file %s not found", argv[i]);
- newer_mtime = stat_newer.st_mtime;
+ if (!*++argv)
+ bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ xstat(arg1, &stat_newer);
+ ap = ALLOC_ACTION(newer);
+ ap->newer_mtime = stat_newer.st_mtime;
+ }
#endif
-#ifdef CONFIG_FEATURE_FIND_INUM
- } else if (strcmp(argv[i], "-inum") == 0) {
- char *end;
- if (++i == argc)
- bb_error_msg_and_die(msg_req_arg, "-inum");
- inode_num = strtol(argv[i], &end, 10);
- if (end[0] != '\0')
- bb_error_msg_and_die(msg_invalid_arg, argv[i], "-inum");
+#if ENABLE_FEATURE_FIND_INUM
+ else if (strcmp(arg, "-inum") == 0) {
+ action_inum *ap;
+ if (!*++argv)
+ bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ ap = ALLOC_ACTION(inum);
+ ap->inode_num = xatoul(arg1);
+ }
#endif
-#ifdef CONFIG_FEATURE_FIND_EXEC
- } else if (strcmp(argv[i], "-exec") == 0) {
- int b_pos;
- char *cmd_string = "";
-
- while (i++) {
- if (i == argc)
- bb_error_msg_and_die(msg_req_arg, "-exec");
- if (*argv[i] == ';')
+#if ENABLE_FEATURE_FIND_EXEC
+ else if (strcmp(arg, "-exec") == 0) {
+ int i;
+ action_exec *ap;
+ need_print = 0;
+ ap = ALLOC_ACTION(exec);
+ ap->exec_argv = ++argv; /* first arg after -exec */
+ ap->exec_argc = 0;
+ while (1) {
+ if (!*argv) /* did not see ';' till end */
+ bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ if (one_char(argv[0], ';'))
break;
- cmd_string = bb_xasprintf("%s %s", cmd_string, argv[i]);
+ argv++;
+ ap->exec_argc++;
}
-
- if (*cmd_string == 0)
- bb_error_msg_and_die(msg_req_arg, "-exec");
- cmd_string++;
- exec_str = xmalloc(sizeof(char *));
-
- while ((b_pos = strstr(cmd_string, "{}") - cmd_string), (b_pos >= 0)) {
- num_matches++;
- exec_str = xrealloc(exec_str, (num_matches + 1) * sizeof(char *));
- exec_str[num_matches - 1] = bb_xstrndup(cmd_string, b_pos);
- cmd_string += b_pos + 2;
+ if (ap->exec_argc == 0)
+ bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ ap->subst_count = xmalloc(ap->exec_argc * sizeof(int));
+ i = ap->exec_argc;
+ while (i--)
+ ap->subst_count[i] = count_subst(ap->exec_argv[i]);
+ }
+#endif
+#if ENABLE_DESKTOP
+ else if (one_char(arg, '(')) {
+ action_paren *ap;
+ char **endarg;
+ int nested = 1;
+
+ endarg = argv;
+ while (1) {
+ if (!*++endarg)
+ bb_error_msg_and_die("unpaired '('");
+ if (one_char(*endarg, '('))
+ nested++;
+ else if (one_char(*endarg, ')') && !--nested) {
+ *endarg = NULL;
+ break;
+ }
}
- exec_str[num_matches] = bb_xstrdup(cmd_string);
- exec_opt = 1;
+ ap = ALLOC_ACTION(paren);
+ ap->subexpr = parse_params(argv + 1);
+ *endarg = ")"; /* restore NULLed parameter */
+ argv = endarg;
+ }
+ else if (strcmp(arg, "-prune") == 0) {
+ (void) ALLOC_ACTION(prune);
+ }
#endif
- } else
+ else
bb_show_usage();
+ argv++;
}
+ return appp;
+#undef ALLOC_ACTION
+}
+
+
+int find_main(int argc, char **argv)
+{
+ int dereference = FALSE;
+ char *arg;
+ char **argp;
+ int i, firstopt, status = EXIT_SUCCESS;
+
+ for (firstopt = 1; firstopt < argc; firstopt++) {
+ if (argv[firstopt][0] == '-')
+ break;
+#if ENABLE_DESKTOP
+ if (one_char(argv[firstopt], '('))
+ break;
+#endif
+ }
if (firstopt == 1) {
- if (! recursive_action(".", TRUE, dereference, FALSE, fileAction,
- fileAction, NULL))
- status = EXIT_FAILURE;
- } else {
- for (i = 1; i < firstopt; i++) {
- if (! recursive_action(argv[i], TRUE, dereference, FALSE, fileAction,
- fileAction, NULL))
- status = EXIT_FAILURE;
+ argv[0] = ".";
+ argv--;
+ firstopt++;
+ }
+
+// All options always return true. They always take effect,
+// rather than being processed only when their place in the
+// expression is reached
+// We implement: -follow, -xdev
+
+ /* Process options, and replace then with -a */
+ /* (-a will be ignored by recursive parser later) */
+ argp = &argv[firstopt];
+ while ((arg = argp[0])) {
+ if (strcmp(arg, "-follow") == 0) {
+ dereference = TRUE;
+ argp[0] = "-a";
}
+#if ENABLE_FEATURE_FIND_XDEV
+ else if (strcmp(arg, "-xdev") == 0) {
+ struct stat stbuf;
+ if (!xdev_count) {
+ xdev_count = firstopt - 1;
+ xdev_dev = xmalloc(xdev_count * sizeof(dev_t));
+ for (i = 1; i < firstopt; i++) {
+ /* not xstat(): shouldn't bomb out on
+ * "find not_exist exist -xdev" */
+ if (stat(argv[i], &stbuf)) stbuf.st_dev = -1L;
+ xdev_dev[i-1] = stbuf.st_dev;
+ }
+ }
+ argp[0] = "-a";
+ }
+ argp++;
}
+#endif
+
+ actions = parse_params(&argv[firstopt]);
+ for (i = 1; i < firstopt; i++) {
+ if (!recursive_action(argv[i],
+ TRUE, // recurse
+ dereference, // follow links
+ FALSE, // depth first
+ fileAction, // file action
+ fileAction, // dir action
+ NULL, // user data
+ 0)) // depth
+ status = EXIT_FAILURE;
+ }
return status;
}