281 lines
6.9 KiB
C
281 lines
6.9 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini find implementation for busybox
|
|
*
|
|
* Copyright (C) 1999-2003 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;
|
|
}
|