| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini find implementation for busybox |
| * |
| * |
| * Copyright (C) 1999,2000,2001 by Lineo, inc. |
| * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.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 "busybox.h" |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <dirent.h> |
| #include <string.h> |
| #include <stdlib.h> |
| #include <fnmatch.h> |
| #include <time.h> |
| #include <ctype.h> |
| |
| |
| static char *pattern; |
| |
| #ifdef BB_FEATURE_FIND_TYPE |
| static int type_mask = 0; |
| #endif |
| |
| #ifdef BB_FEATURE_FIND_PERM |
| static char perm_char = 0; |
| static int perm_mask = 0; |
| #endif |
| |
| #ifdef BB_FEATURE_FIND_MTIME |
| static char mtime_char; |
| static int mtime_days; |
| #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 BB_FEATURE_FIND_TYPE |
| if (type_mask != 0) { |
| if (!((statbuf->st_mode & S_IFMT) == type_mask)) |
| goto no_match; |
| } |
| #endif |
| #ifdef BB_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 BB_FEATURE_FIND_MTIME |
| if (mtime_days != 0) { |
| time_t file_age = time(NULL) - statbuf->st_mtime; |
| time_t mtime_secs = mtime_days * 24 * 60 * 60; |
| if (!((isdigit(mtime_char) && mtime_secs >= file_age && |
| mtime_secs < file_age + 24 * 60 * 60) || |
| (mtime_char == '+' && mtime_secs >= file_age) || |
| (mtime_char == '-' && mtime_secs < file_age))) |
| goto no_match; |
| } |
| #endif |
| puts(fileName); |
| no_match: |
| return (TRUE); |
| } |
| |
| #ifdef BB_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') |
| error_msg_and_die("invalid argument `%s' to `-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], "-name") == 0) { |
| if (++i == argc) |
| error_msg_and_die("option `-name' requires an argument"); |
| pattern = argv[i]; |
| #ifdef BB_FEATURE_FIND_TYPE |
| } else if (strcmp(argv[i], "-type") == 0) { |
| if (++i == argc) |
| error_msg_and_die("option `-type' requires an argument"); |
| type_mask = find_type(argv[i]); |
| #endif |
| #ifdef BB_FEATURE_FIND_PERM |
| } else if (strcmp(argv[i], "-perm") == 0) { |
| char *end; |
| if (++i == argc) |
| error_msg_and_die("option `-perm' requires an argument"); |
| perm_mask = strtol(argv[i], &end, 8); |
| if (end[0] != '\0') |
| error_msg_and_die("invalid argument `%s' to `-perm'", argv[i]); |
| if (perm_mask > 07777) |
| error_msg_and_die("invalid argument `%s' to `-perm'", argv[i]); |
| if ((perm_char = argv[i][0]) == '-') |
| perm_mask = -perm_mask; |
| #endif |
| #ifdef BB_FEATURE_FIND_MTIME |
| } else if (strcmp(argv[i], "-mtime") == 0) { |
| char *end; |
| if (++i == argc) |
| error_msg_and_die("option `-mtime' requires an argument"); |
| mtime_days = strtol(argv[i], &end, 10); |
| if (end[0] != '\0') |
| error_msg_and_die("invalid argument `%s' to `-mtime'", argv[i]); |
| if ((mtime_char = argv[i][0]) == '-') |
| mtime_days = -mtime_days; |
| #endif |
| } else |
| usage(find_usage); |
| } |
| |
| if (firstopt == 1) { |
| if (recursive_action(".", TRUE, dereference, FALSE, fileAction, |
| fileAction, NULL) == FALSE) |
| status = EXIT_FAILURE; |
| } else { |
| for (i = 1; i < firstopt; i++) { |
| if (recursive_action(argv[i], TRUE, dereference, FALSE, fileAction, |
| fileAction, NULL) == FALSE) |
| status = EXIT_FAILURE; |
| } |
| } |
| |
| return status; |
| } |