1 /* vi: set sw=4 ts=4: */
3 * Mini chown/chmod/chgrp implementation for busybox
6 * Copyright (C) 1999,2000 by Lineo, inc.
7 * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #define BB_DECLARE_EXTERN
27 #define bb_need_invalid_option
28 #define bb_need_too_few_args
36 static unsigned long uid = -1;
37 static unsigned long gid = -1;
39 static char *theMode = NULL;
46 static const char chgrp_usage[] = "chgrp [OPTION]... GROUP FILE...\n"
47 #ifndef BB_FEATURE_TRIVIAL_HELP
48 "\nChange the group membership of each FILE to GROUP.\n"
49 "\nOptions:\n\t-R\tChanges files and directories recursively.\n"
52 static const char chown_usage[] =
53 "chown [OPTION]... OWNER[<.|:>[GROUP] FILE...\n"
54 #ifndef BB_FEATURE_TRIVIAL_HELP
55 "\nChange the owner and/or group of each FILE to OWNER and/or GROUP.\n"
56 "\nOptions:\n\t-R\tChanges files and directories recursively.\n"
59 static const char chmod_usage[] =
60 "chmod [-R] MODE[,MODE]... FILE...\n"
61 #ifndef BB_FEATURE_TRIVIAL_HELP
62 "\nEach MODE is one or more of the letters ugoa, one of the symbols +-= and\n"
63 "one or more of the letters rwxst.\n\n"
64 "\nOptions:\n\t-R\tChanges files and directories recursively.\n"
69 static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
74 #if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
76 (fileName, (whichApp == CHOWN_APP) ? uid : statbuf->st_uid,
77 (gid == -1) ? statbuf->st_gid : gid) == 0)
80 (fileName, (whichApp == CHOWN_APP) ? uid : statbuf->st_uid,
81 (gid == -1) ? statbuf->st_gid : gid) == 0)
88 /* Parse the specified modes */
89 if (parse_mode(theMode, &(statbuf->st_mode)) == FALSE) {
90 fatalError( "unknown mode: %s\n", theMode);
92 if (chmod(fileName, statbuf->st_mode) == 0)
100 int chmod_chown_chgrp_main(int argc, char **argv)
102 int recursiveFlag = FALSE;
103 char *groupName=NULL;
105 const char *appUsage;
107 whichApp = (strcmp(applet_name, "chown") == 0)?
108 CHOWN_APP : (strcmp(applet_name, "chmod") == 0)?
109 CHMOD_APP : CHGRP_APP;
111 appUsage = (whichApp == CHOWN_APP)?
112 chown_usage : (whichApp == CHMOD_APP) ? chmod_usage : chgrp_usage;
119 while (--argc >= 0 && *argv && (**argv == '-')) {
123 recursiveFlag = TRUE;
126 fprintf(stderr, invalid_option, applet_name, **argv);
133 if (argc == 0 || *argv == NULL) {
134 fprintf(stderr, too_few_args, applet_name);
138 if (whichApp == CHMOD_APP) {
142 /* Find the selected group */
143 if (whichApp == CHGRP_APP) {
145 gid = strtoul(groupName, &p, 10); /* maybe it's already numeric */
147 gid = my_getgrnam(groupName);
151 groupName = strchr(*argv, '.');
152 if (groupName == NULL)
153 groupName = strchr(*argv, ':');
156 gid = strtoul(groupName, &p, 10);
158 gid = my_getgrnam(groupName);
166 /* Find the selected user (if appropriate) */
167 if (whichApp == CHOWN_APP) {
168 uid = strtoul(*argv, &p, 10); /* if numeric ... */
170 uid = my_getpwnam(*argv);
172 fatalError( "unknown user name: %s\n", *argv);
177 /* Ok, ready to do the deed now */
179 fatalError( "too few arguments\n");
182 if (recursiveAction (*(++argv), recursiveFlag, FALSE, FALSE,
183 fileAction, fileAction, NULL) == FALSE)
189 fatalError( "unknown group name: %s\n", groupName);
194 c-file-style: "linux"