| /* 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 |
| static const char msg_req_arg[] = "option `%s' requires an argument"; |
| static 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_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 |
| |
| #ifdef CONFIG_FEATURE_FIND_NEWER |
| static time_t newer_mtime; |
| #endif |
| |
| #ifdef CONFIG_FEATURE_FIND_INUM |
| static ino_t inode_num; |
| #endif |
| |
| #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) |
| { |
| #ifdef CONFIG_FEATURE_FIND_XDEV |
| if (S_ISDIR(statbuf->st_mode) && xdev_count) { |
| int i; |
| for (i=0; i<xdev_count; i++) { |
| if (xdev_dev[i] != statbuf->st_dev) |
| return SKIP; |
| } |
| } |
| #endif |
| 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_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; |
| } |
| #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 |
| #ifdef CONFIG_FEATURE_FIND_EXEC |
| if (exec_opt) { |
| 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; |
| } |
| #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_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; |
| #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 ) { |
| xstat ( ".", &stbuf ); |
| xdev_dev [0] = stbuf. st_dev; |
| } |
| else { |
| |
| for (i = 1; i < firstopt; i++) { |
| xstat ( argv [i], &stbuf ); |
| 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"); |
| xstat (argv[i], &stat_newer); |
| 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 |
| #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] == ';') |
| break; |
| cmd_string = bb_xasprintf("%s %s", cmd_string, argv[i]); |
| } |
| |
| 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; |
| } |
| exec_str[num_matches] = bb_xstrdup(cmd_string); |
| exec_opt = 1; |
| #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; |
| } |
