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-rw-r--r--busybox/findutils/find.c280
1 files changed, 280 insertions, 0 deletions
diff --git a/busybox/findutils/find.c b/busybox/findutils/find.c
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+++ b/busybox/findutils/find.c
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+/* vi: set sw=4 ts=4: */
+/*
+ * Mini find implementation for busybox
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * 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.
+ *
+ * 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
+ *
+ */
+
+#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"
+
+//XXX just found out about libbb/messages.c . maybe move stuff there ? - ghoz
+const char msg_req_arg[] = "option `%s' requires an argument";
+const char msg_invalid_arg[] = "invalid argument `%s' to `%s'";
+
+static char *pattern;
+
+#ifdef CONFIG_FEATURE_FIND_TYPE
+static int type_mask = 0;
+#endif
+
+#ifdef CONFIG_FEATURE_FIND_PERM
+static char perm_char = 0;
+static int perm_mask = 0;
+#endif
+
+#ifdef CONFIG_FEATURE_FIND_MTIME
+static char mtime_char;
+static int mtime_days;
+#endif
+
+#ifdef CONFIG_FEATURE_FIND_XDEV
+static dev_t *xdev_dev;
+static int xdev_count = 0;
+#endif
+
+#ifdef CONFIG_FEATURE_FIND_NEWER
+time_t newer_mtime;
+#endif
+
+#ifdef CONFIG_FEATURE_FIND_INUM
+static ino_t inode_num;
+#endif
+
+static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
+{
+ if (pattern != NULL) {
+ const char *tmp = strrchr(fileName, '/');
+
+ 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;
+ }
+#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;
+ }
+#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;
+ }
+#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;
+ }
+ }
+#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;
+ }
+#endif
+#ifdef CONFIG_FEATURE_FIND_INUM
+ if (inode_num != 0) {
+ if (!(statbuf->st_ino == inode_num))
+ goto no_match;
+ }
+#endif
+ puts(fileName);
+no_match:
+ return (TRUE);
+}
+
+#ifdef CONFIG_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;
+ }
+
+ if (mask == 0 || type[1] != '\0')
+ bb_error_msg_and_die(msg_invalid_arg, type, "-type");
+
+ return mask;
+}
+#endif
+
+int find_main(int argc, char **argv)
+{
+ int dereference = FALSE;
+ int i, firstopt, status = EXIT_SUCCESS;
+
+ for (firstopt = 1; firstopt < argc; firstopt++) {
+ if (argv[firstopt][0] == '-')
+ break;
+ }
+
+ /* 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]);
+#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;
+#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;
+#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;
+ }
+ }
+#endif
+#ifdef CONFIG_FEATURE_FIND_NEWER
+ } else if (strcmp(argv[i], "-newer") == 0) {
+ 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;
+#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");
+#endif
+ } else
+ bb_show_usage();
+ }
+
+ 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;
+ }
+ }
+
+ return status;
+}
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