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-rw-r--r--busybox/coreutils/chown.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/busybox/coreutils/chown.c b/busybox/coreutils/chown.c
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+++ b/busybox/coreutils/chown.c
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1/* vi: set sw=4 ts=4: */
2/*
3 * Mini chown implementation for busybox
4 *
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
23/* BB_AUDIT SUSv3 defects - unsupported options -h, -H, -L, and -P. */
24/* BB_AUDIT GNU defects - unsupported options -h, -c, -f, -v, and long options. */
25/* BB_AUDIT Note: gnu chown does not support -H, -L, or -P. */
26/* http://www.opengroup.org/onlinepubs/007904975/utilities/chown.html */
27
28#include <stdlib.h>
29#include <unistd.h>
30#include <string.h>
31#include "busybox.h"
32
33/* Don't use lchown for glibc older then 2.1.x */
34#if (__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)
35#define lchown chown
36#endif
37
38static long uid;
39static long gid;
40
41static int (*chown_func)(const char *, uid_t, gid_t) = chown;
42
43static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
44{
45 if (chown_func(fileName, uid, (gid == -1) ? statbuf->st_gid : gid) == 0) {
46 chmod(fileName, statbuf->st_mode);
47 return (TRUE);
48 }
49 bb_perror_msg("%s", fileName); /* Avoid multibyte problems. */
50 return (FALSE);
51}
52
53#define FLAG_R 1
54#define FLAG_h 2
55
56int chown_main(int argc, char **argv)
57{
58 int flags;
59 int retval = EXIT_SUCCESS;
60 char *groupName;
61
62 flags = bb_getopt_ulflags(argc, argv, "Rh");
63
64 if (flags & FLAG_h) chown_func = lchown;
65
66 if (argc - optind < 2) {
67 bb_show_usage();
68 }
69
70 argv += optind;
71
72 /* First, check if there is a group name here */
73 if ((groupName = strchr(*argv, '.')) == NULL) {
74 groupName = strchr(*argv, ':');
75 }
76
77 gid = -1;
78 if (groupName) {
79 *groupName++ = '\0';
80 gid = get_ug_id(groupName, my_getgrnam);
81 }
82
83 /* Now check for the username */
84 uid = get_ug_id(*argv, my_getpwnam);
85
86 ++argv;
87
88 /* Ok, ready to do the deed now */
89 do {
90 if (! recursive_action (*argv, (flags & FLAG_R), FALSE, FALSE,
91 fileAction, fileAction, NULL)) {
92 retval = EXIT_FAILURE;
93 }
94 } while (*++argv);
95
96 return retval;
97}
98
99/*
100Local Variables:
101c-file-style: "linux"
102c-basic-offset: 4
103tab-width: 4
104End:
105*/