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-rw-r--r--find.c200
1 files changed, 0 insertions, 200 deletions
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1/* vi: set sw=4 ts=4: */
2/*
3 * Mini find implementation for busybox
4 *
5 *
6 * Copyright (C) 1999,2000,2001 by Lineo, inc.
7 * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
8 * Reworked by David Douthitt <n9ubh@callsign.net> and
9 * Matt Kraai <kraai@alumni.carnegiemellon.edu>.
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 *
25 */
26
27#include <stdio.h>
28#include <unistd.h>
29#include <dirent.h>
30#include <string.h>
31#include <stdlib.h>
32#include <fnmatch.h>
33#include <time.h>
34#include <ctype.h>
35#include "busybox.h"
36
37
38static char *pattern;
39
40#ifdef BB_FEATURE_FIND_TYPE
41static int type_mask = 0;
42#endif
43
44#ifdef BB_FEATURE_FIND_PERM
45static char perm_char = 0;
46static int perm_mask = 0;
47#endif
48
49#ifdef BB_FEATURE_FIND_MTIME
50static char mtime_char;
51static int mtime_days;
52#endif
53
54static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
55{
56 if (pattern != NULL) {
57 const char *tmp = strrchr(fileName, '/');
58
59 if (tmp == NULL)
60 tmp = fileName;
61 else
62 tmp++;
63 if (!(fnmatch(pattern, tmp, FNM_PERIOD) == 0))
64 goto no_match;
65 }
66#ifdef BB_FEATURE_FIND_TYPE
67 if (type_mask != 0) {
68 if (!((statbuf->st_mode & S_IFMT) == type_mask))
69 goto no_match;
70 }
71#endif
72#ifdef BB_FEATURE_FIND_PERM
73 if (perm_mask != 0) {
74 if (!((isdigit(perm_char) && (statbuf->st_mode & 07777) == perm_mask) ||
75 (perm_char == '-' && (statbuf->st_mode & perm_mask) == perm_mask) ||
76 (perm_char == '+' && (statbuf->st_mode & perm_mask) != 0)))
77 goto no_match;
78 }
79#endif
80#ifdef BB_FEATURE_FIND_MTIME
81 if (mtime_days != 0) {
82 time_t file_age = time(NULL) - statbuf->st_mtime;
83 time_t mtime_secs = mtime_days * 24 * 60 * 60;
84 if (!((isdigit(mtime_char) && mtime_secs >= file_age &&
85 mtime_secs < file_age + 24 * 60 * 60) ||
86 (mtime_char == '+' && mtime_secs >= file_age) ||
87 (mtime_char == '-' && mtime_secs < file_age)))
88 goto no_match;
89 }
90#endif
91 puts(fileName);
92no_match:
93 return (TRUE);
94}
95
96#ifdef BB_FEATURE_FIND_TYPE
97static int find_type(char *type)
98{
99 int mask = 0;
100
101 switch (type[0]) {
102 case 'b':
103 mask = S_IFBLK;
104 break;
105 case 'c':
106 mask = S_IFCHR;
107 break;
108 case 'd':
109 mask = S_IFDIR;
110 break;
111 case 'p':
112 mask = S_IFIFO;
113 break;
114 case 'f':
115 mask = S_IFREG;
116 break;
117 case 'l':
118 mask = S_IFLNK;
119 break;
120 case 's':
121 mask = S_IFSOCK;
122 break;
123 }
124
125 if (mask == 0 || type[1] != '\0')
126 error_msg_and_die("invalid argument `%s' to `-type'", type);
127
128 return mask;
129}
130#endif
131
132int find_main(int argc, char **argv)
133{
134 int dereference = FALSE;
135 int i, firstopt, status = EXIT_SUCCESS;
136
137 for (firstopt = 1; firstopt < argc; firstopt++) {
138 if (argv[firstopt][0] == '-')
139 break;
140 }
141
142 /* Parse any options */
143 for (i = firstopt; i < argc; i++) {
144 if (strcmp(argv[i], "-follow") == 0)
145 dereference = TRUE;
146 else if (strcmp(argv[i], "-print") == 0) {
147 ;
148 }
149 else if (strcmp(argv[i], "-name") == 0) {
150 if (++i == argc)
151 error_msg_and_die("option `-name' requires an argument");
152 pattern = argv[i];
153#ifdef BB_FEATURE_FIND_TYPE
154 } else if (strcmp(argv[i], "-type") == 0) {
155 if (++i == argc)
156 error_msg_and_die("option `-type' requires an argument");
157 type_mask = find_type(argv[i]);
158#endif
159#ifdef BB_FEATURE_FIND_PERM
160 } else if (strcmp(argv[i], "-perm") == 0) {
161 char *end;
162 if (++i == argc)
163 error_msg_and_die("option `-perm' requires an argument");
164 perm_mask = strtol(argv[i], &end, 8);
165 if (end[0] != '\0')
166 error_msg_and_die("invalid argument `%s' to `-perm'", argv[i]);
167 if (perm_mask > 07777)
168 error_msg_and_die("invalid argument `%s' to `-perm'", argv[i]);
169 if ((perm_char = argv[i][0]) == '-')
170 perm_mask = -perm_mask;
171#endif
172#ifdef BB_FEATURE_FIND_MTIME
173 } else if (strcmp(argv[i], "-mtime") == 0) {
174 char *end;
175 if (++i == argc)
176 error_msg_and_die("option `-mtime' requires an argument");
177 mtime_days = strtol(argv[i], &end, 10);
178 if (end[0] != '\0')
179 error_msg_and_die("invalid argument `%s' to `-mtime'", argv[i]);
180 if ((mtime_char = argv[i][0]) == '-')
181 mtime_days = -mtime_days;
182#endif
183 } else
184 show_usage();
185 }
186
187 if (firstopt == 1) {
188 if (recursive_action(".", TRUE, dereference, FALSE, fileAction,
189 fileAction, NULL) == FALSE)
190 status = EXIT_FAILURE;
191 } else {
192 for (i = 1; i < firstopt; i++) {
193 if (recursive_action(argv[i], TRUE, dereference, FALSE, fileAction,
194 fileAction, NULL) == FALSE)
195 status = EXIT_FAILURE;
196 }
197 }
198
199 return status;
200}
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