Diff of /trunk/mkinitrd-magellan/busybox/coreutils/install.c

Parent Directory | Revision Log | Patch

	revision 532 by niro, Sat Sep 1 22:45:15 2007 UTC	revision 1123 by niro, Wed Aug 18 21:56:57 2010 UTC
#	Line 1	Line 1
1	/* vi: set sw=4 ts=4: */	/* vi: set sw=4 ts=4: */
2	/*	/*
3	*  Copyright (C) 2003 by Glenn McGrath <bug1@iinet.net.au>	* Copyright (C) 2003 by Glenn McGrath
4		* SELinux support: by Yuichi Nakamura <ynakam@hitachisoft.jp>
5	*	*
6	* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.	* 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(...)
7	*/	*/
8
9	#include "busybox.h"	#include "libbb.h"
10	#include "libcoreutils/coreutils.h"	#include "libcoreutils/coreutils.h"
	#include <libgen.h>
	#include <getopt.h> /* struct option */
11
12	#if ENABLE_FEATURE_INSTALL_LONG_OPTIONS	#if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
13	static const struct option install_long_options[] = {	static const char install_longopts[] ALIGN1 =
14	{ "directory",           0, NULL, 'd' },	"directory\0"           No_argument       "d"
15	{ "preserve-timestamps", 0, NULL, 'p' },	"preserve-timestamps\0" No_argument       "p"
16	{ "strip",               0, NULL, 's' },	"strip\0"               No_argument       "s"
17	{ "group",               0, NULL, 'g' },	"group\0"               Required_argument "g"
18	{ "mode",                0, NULL, 'm' },	"mode\0"                Required_argument "m"
19	{ "owner",               0, NULL, 'o' },	"owner\0"               Required_argument "o"
20	{ 0, 0, 0, 0 }	/* autofs build insists of using -b --suffix=.orig */
21	};	/* TODO? (short option for --suffix is -S) */
22		#if ENABLE_SELINUX
23		"context\0"             Required_argument "Z"
24		"preserve_context\0"    No_argument       "\xff"
25		"preserve-context\0"    No_argument       "\xff"
26		#endif
27		;
28	#endif	#endif
29
30
31		#if ENABLE_SELINUX
32		static void setdefaultfilecon(const char *path)
33		{
34		struct stat s;
35		security_context_t scontext = NULL;
36
37		if (!is_selinux_enabled()) {
38		return;
39		}
40		if (lstat(path, &s) != 0) {
41		return;
42		}
43
44		if (matchpathcon(path, s.st_mode, &scontext) < 0) {
45		goto out;
46		}
47		if (strcmp(scontext, "<<none>>") == 0) {
48		goto out;
49		}
50
51		if (lsetfilecon(path, scontext) < 0) {
52		if (errno != ENOTSUP) {
53		bb_perror_msg("warning: can't change context"
54		" of %s to %s", path, scontext);
55		}
56		}
57
58		out:
59		freecon(scontext);
60		}
61
62		#endif
63
64		int install_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
65	int install_main(int argc, char **argv)	int install_main(int argc, char **argv)
66	{	{
67	struct stat statbuf;	struct stat statbuf;
68	mode_t mode;	mode_t mode;
69	uid_t uid;	uid_t uid;
70	gid_t gid;	gid_t gid;
71		char *arg, *last;
72	const char *gid_str;	const char *gid_str;
73	const char *uid_str;	const char *uid_str;
74	const char *mode_str;	const char *mode_str;
75	int copy_flags = FILEUTILS_DEREFERENCE | FILEUTILS_FORCE;	int copy_flags = FILEUTILS_DEREFERENCE | FILEUTILS_FORCE;
76	int ret = EXIT_SUCCESS, flags, i, isdir;	int opts;
77		int min_args = 1;
78		int ret = EXIT_SUCCESS;
79		int isdir = 0;
80		#if ENABLE_SELINUX
81		security_context_t scontext;
82		bool use_default_selinux_context = 1;
83		#endif
84	enum {	enum {
85	OPT_CMD           =  0x1,	OPT_c             = 1 << 0,
86	OPT_DIRECTORY     =  0x2,	OPT_v             = 1 << 1,
87	OPT_PRESERVE_TIME =  0x4,	OPT_b             = 1 << 2,
88	OPT_STRIP         =  0x8,	OPT_MKDIR_LEADING = 1 << 3,
89	OPT_GROUP         = 0x10,	OPT_DIRECTORY     = 1 << 4,
90	OPT_MODE          = 0x20,	OPT_PRESERVE_TIME = 1 << 5,
91	OPT_OWNER         = 0x40,	OPT_STRIP         = 1 << 6,
92		OPT_GROUP         = 1 << 7,
93		OPT_MODE          = 1 << 8,
94		OPT_OWNER         = 1 << 9,
95		#if ENABLE_SELINUX
96		OPT_SET_SECURITY_CONTEXT = 1 << 10,
97		OPT_PRESERVE_SECURITY_CONTEXT = 1 << 11,
98		#endif
99	};	};
100
101	#if ENABLE_FEATURE_INSTALL_LONG_OPTIONS	#if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
102	applet_long_options = install_long_options;	applet_long_options = install_longopts;
103		#endif
104		opt_complementary = "s--d:d--s" IF_FEATURE_INSTALL_LONG_OPTIONS(IF_SELINUX(":Z--\xff:\xff--Z"));
105		/* -c exists for backwards compatibility, it's needed */
106		/* -v is ignored ("print name of each created directory") */
107		/* -b is ignored ("make a backup of each existing destination file") */
108		opts = getopt32(argv, "cvb" "Ddpsg:m:o:" IF_SELINUX("Z:"),
109		&gid_str, &mode_str, &uid_str IF_SELINUX(, &scontext));
110		argc -= optind;
111		argv += optind;
112
113		#if ENABLE_SELINUX
114		if (opts & (OPT_PRESERVE_SECURITY_CONTEXT|OPT_SET_SECURITY_CONTEXT)) {
115		selinux_or_die();
116		use_default_selinux_context = 0;
117		if (opts & OPT_PRESERVE_SECURITY_CONTEXT) {
118		copy_flags |= FILEUTILS_PRESERVE_SECURITY_CONTEXT;
119		}
120		if (opts & OPT_SET_SECURITY_CONTEXT) {
121		setfscreatecon_or_die(scontext);
122		copy_flags |= FILEUTILS_SET_SECURITY_CONTEXT;
123		}
124		}
125	#endif	#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);
126
127	/* preserve access and modification time, this is GNU behaviour, BSD only preserves modification time */	/* preserve access and modification time, this is GNU behaviour,
128	if (flags & OPT_PRESERVE_TIME) {	* BSD only preserves modification time */
129		if (opts & OPT_PRESERVE_TIME) {
130	copy_flags |= FILEUTILS_PRESERVE_STATUS;	copy_flags |= FILEUTILS_PRESERVE_STATUS;
131	}	}
132	mode = 0666;	mode = 0755; /* GNU coreutils 6.10 compat */
133	if (flags & OPT_MODE) bb_parse_mode(mode_str, &mode);	if (opts & OPT_MODE)
134	uid = (flags & OPT_OWNER) ? get_ug_id(uid_str, xuname2uid) : getuid();	bb_parse_mode(mode_str, &mode);
135	gid = (flags & OPT_GROUP) ? get_ug_id(gid_str, xgroup2gid) : getgid();	uid = (opts & OPT_OWNER) ? get_ug_id(uid_str, xuname2uid) : getuid();
136	if (flags & (OPT_OWNER|OPT_GROUP)) umask(0);	gid = (opts & OPT_GROUP) ? get_ug_id(gid_str, xgroup2gid) : getgid();
137
138	/* Create directories	last = argv[argc - 1];
139	* don't use bb_make_directory() as it can't change uid or gid	if (!(opts & OPT_DIRECTORY)) {
140	* perhaps bb_make_directory() should be improved.	argv[argc - 1] = NULL;
141	*/	min_args++;
	if (flags & 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 | 0111) == -1) {
	if (errno != EEXIST) {
	bb_perror_msg("cannot create %s", *argv);
	ret = EXIT_FAILURE;
	break;
	}
	}
	if ((flags & (OPT_OWNER|OPT_GROUP))
	&& 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;
	}
142
143	isdir = lstat(argv[argc - 1], &statbuf) < 0 ? 0 : S_ISDIR(statbuf.st_mode);	/* coreutils install resolves link in this case, don't use lstat */
144		isdir = stat(last, &statbuf) < 0 ? 0 : S_ISDIR(statbuf.st_mode);
145		}
146
147	for (i = optind; i < argc - 1; i++) {	if (argc < min_args)
148	char *dest;	bb_show_usage();
149
150	dest = argv[argc - 1];	while ((arg = *argv++) != NULL) {
151	if (isdir)	char *dest = last;
152	dest = concat_path_file(argv[argc - 1], basename(argv[i]));	if (opts & OPT_DIRECTORY) {
153	ret |= copy_file(argv[i], dest, copy_flags);	dest = arg;
154		/* GNU coreutils 6.9 does not set uid:gid
155		* on intermediate created directories
156		* (only on last one) */
157		if (bb_make_directory(dest, 0755, FILEUTILS_RECUR)) {
158		ret = EXIT_FAILURE;
159		goto next;
160		}
161		} else {
162		if (opts & OPT_MKDIR_LEADING) {
163		char *ddir = xstrdup(dest);
164		bb_make_directory(dirname(ddir), 0755, FILEUTILS_RECUR);
165		/* errors are not checked. copy_file
166		* will fail if dir is not created. */
167		free(ddir);
168		}
169		if (isdir)
170		dest = concat_path_file(last, bb_basename(arg));
171		if (copy_file(arg, dest, copy_flags) != 0) {
172		/* copy is not made */
173		ret = EXIT_FAILURE;
174		goto next;
175		}
176		if (opts & OPT_STRIP) {
177		char *args[4];
178		args[0] = (char*)"strip";
179		args[1] = (char*)"-p"; /* -p --preserve-dates */
180		args[2] = dest;
181		args[3] = NULL;
182		if (spawn_and_wait(args)) {
183		bb_perror_msg("strip");
184		ret = EXIT_FAILURE;
185		}
186		}
187		}
188
189	/* Set the file mode */	/* Set the file mode (always, not only with -m).
190	if ((flags & OPT_MODE) && chmod(dest, mode) == -1) {	* GNU coreutils 6.10 is not affected by umask. */
191	bb_perror_msg("cannot change permissions of %s", dest);	if (chmod(dest, mode) == -1) {
192		bb_perror_msg("can't change %s of %s", "permissions", dest);
193	ret = EXIT_FAILURE;	ret = EXIT_FAILURE;
194	}	}
195		#if ENABLE_SELINUX
196		if (use_default_selinux_context)
197		setdefaultfilecon(dest);
198		#endif
199	/* Set the user and group id */	/* Set the user and group id */
200	if ((flags & (OPT_OWNER|OPT_GROUP))	if ((opts & (OPT_OWNER|OPT_GROUP))
201	&& lchown(dest, uid, gid) == -1	&& lchown(dest, uid, gid) == -1
202	) {	) {
203	bb_perror_msg("cannot change ownership of %s", dest);	bb_perror_msg("can't change %s of %s", "ownership", dest);
204	ret = EXIT_FAILURE;	ret = EXIT_FAILURE;
205	}	}
206	if (flags & OPT_STRIP) {	next:
207	if (execlp("strip", "strip", dest, NULL) == -1) {	if (ENABLE_FEATURE_CLEAN_UP && isdir)
208	bb_perror_msg("strip");	free(dest);
	ret = EXIT_FAILURE;
	}
	}
	if (ENABLE_FEATURE_CLEAN_UP && isdir) free(dest);
209	}	}
210
211	return ret;	return ret;

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