/* 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 static 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; }