aboutsummaryrefslogtreecommitdiff
path: root/coreutils/install.c
blob: 3e003905e0a94e1e5711cedad3ea4af58168b12d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
/* vi: set sw=4 ts=4: */
/*
 *  Copyright (C) 2003 by Glenn McGrath <bug1@iinet.net.au>
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 *
 * TODO: -d option, need a way of recursively making directories and changing
 *           owner/group, will probably modify bb_make_directory(...)
 */

#include "busybox.h"
#include "libcoreutils/coreutils.h"
#include <libgen.h>
#include <getopt.h> /* struct option */

#define INSTALL_OPT_CMD	1
#define INSTALL_OPT_DIRECTORY	2
#define INSTALL_OPT_PRESERVE_TIME	4
#define INSTALL_OPT_STRIP	8
#define INSTALL_OPT_GROUP  16
#define INSTALL_OPT_MODE  32
#define INSTALL_OPT_OWNER  64

#if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
static const struct option install_long_options[] = {
	{ "directory",	0,	NULL,	'd' },
	{ "preserve-timestamps",	0,	NULL,	'p' },
	{ "strip",	0,	NULL,	's' },
	{ "group",	0,	NULL,	'g' },
	{ "mode",	0,	NULL,	'm' },
	{ "owner",	0,	NULL,	'o' },
	{ 0,	0,	0,	0 }
};
#endif

int install_main(int argc, char **argv)
{
	mode_t mode;
	uid_t uid;
	gid_t gid;
	char *gid_str = "-1";
	char *uid_str = "-1";
	char *mode_str = "0755";
	int copy_flags = FILEUTILS_DEREFERENCE | FILEUTILS_FORCE;
	int ret = EXIT_SUCCESS, flags, i, isdir;

#if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
	applet_long_options = install_long_options;
#endif
	opt_complementary = "?:s--d:d--s";
	/* -c exists for backwards compatibility, its needed */
	flags = getopt32(argc, argv, "cdpsg:m:o:", &gid_str, &mode_str, &uid_str);	/* 'a' must be 2nd */

	/* preserve access and modification time, this is GNU behaviour, BSD only preserves modification time */
	if (flags & INSTALL_OPT_PRESERVE_TIME) {
		copy_flags |= FILEUTILS_PRESERVE_STATUS;
	}
	bb_parse_mode(mode_str, &mode);
	gid = get_ug_id(gid_str, bb_xgetgrnam);
	uid = get_ug_id(uid_str, bb_xgetpwnam);
	umask(0);

	/* Create directories
	 * don't use bb_make_directory() as it can't change uid or gid
	 * perhaps bb_make_directory() should be improved.
	 */
	if (flags & INSTALL_OPT_DIRECTORY) {
		for (argv += optind; *argv; argv++) {
			char *old_argv_ptr = *argv + 1;
			char *argv_ptr;
			do {
				argv_ptr = strchr(old_argv_ptr, '/');
				old_argv_ptr = argv_ptr;
				if (argv_ptr) {
					*argv_ptr = '\0';
					old_argv_ptr++;
				}
				if (mkdir(*argv, mode) == -1) {
					if (errno != EEXIST) {
						bb_perror_msg("cannot create %s", *argv);
						ret = EXIT_FAILURE;
						break;
					}
				}
				else if (lchown(*argv, uid, gid) == -1) {
					bb_perror_msg("cannot change ownership of %s", *argv);
					ret = EXIT_FAILURE;
					break;
				}
				if (argv_ptr) {
					*argv_ptr = '/';
				}
			} while (old_argv_ptr);
		}
		return ret;
	}

	{
		struct stat statbuf;
		isdir = lstat(argv[argc - 1], &statbuf)<0
					? 0 : S_ISDIR(statbuf.st_mode);
	}
	for (i = optind; i < argc - 1; i++) {
		char *dest;

		dest = argv[argc - 1];
		if (isdir) dest = concat_path_file(argv[argc - 1], basename(argv[i]));
		ret |= copy_file(argv[i], dest, copy_flags);

		/* Set the file mode */
		if (chmod(dest, mode) == -1) {
			bb_perror_msg("cannot change permissions of %s", dest);
			ret = EXIT_FAILURE;
		}

		/* Set the user and group id */
		if (lchown(dest, uid, gid) == -1) {
			bb_perror_msg("cannot change ownership of %s", dest);
			ret = EXIT_FAILURE;
		}
		if (flags & INSTALL_OPT_STRIP) {
			if (execlp("strip", "strip", dest, NULL) == -1) {
				bb_error_msg("strip failed");
				ret = EXIT_FAILURE;
			}
		}
		if(ENABLE_FEATURE_CLEAN_UP && isdir) free(dest);
	}

	return ret;
}