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"Robert P. J. Day"63fc1a92006-07-02 19:47:05 +00001/* vi: set sw=4 ts=4: */
Glenn L McGratheebcc1d2003-09-24 03:22:57 +00002/*
Denis Vlasenko1203c9b2007-03-11 22:16:02 +00003 * Copyright (C) 2003 by Glenn McGrath <bug1@iinet.net.au>
4 * SELinux support: by Yuichi Nakamura <ynakam@hitachisoft.jp>
Glenn L McGratheebcc1d2003-09-24 03:22:57 +00005 *
"Robert P. J. Day"801ab142006-07-12 07:56:04 +00006 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
Glenn L McGratheebcc1d2003-09-24 03:22:57 +00007 *
8 * TODO: -d option, need a way of recursively making directories and changing
9 * owner/group, will probably modify bb_make_directory(...)
Glenn L McGratheebcc1d2003-09-24 03:22:57 +000010 */
11
Rob Landley519d7df2006-08-09 20:56:23 +000012#include <libgen.h>
13#include <getopt.h> /* struct option */
Glenn L McGrath11e69472003-11-27 22:40:08 +000014
Denis Vlasenkob6adbf12007-05-26 19:00:18 +000015#include "libbb.h"
16#include "libcoreutils/coreutils.h"
17
Bernhard Reutner-Fischer01d23ad2006-05-26 20:19:22 +000018#if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
Glenn L McGrathca43b482004-01-23 21:57:16 +000019static const struct option install_long_options[] = {
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +000020 { "directory", 0, NULL, 'd' },
21 { "preserve-timestamps", 0, NULL, 'p' },
22 { "strip", 0, NULL, 's' },
23 { "group", 0, NULL, 'g' },
24 { "mode", 0, NULL, 'm' },
25 { "owner", 0, NULL, 'o' },
Denis Vlasenko49622d72007-03-10 16:58:49 +000026#if ENABLE_SELINUX
27 { "context", 1, NULL, 'Z' },
28 { "preserve_context", 0, NULL, 0xff },
29 { "preserve-context", 0, NULL, 0xff },
30#endif
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +000031 { 0, 0, 0, 0 }
Glenn L McGrathca43b482004-01-23 21:57:16 +000032};
Bernhard Reutner-Fischer01d23ad2006-05-26 20:19:22 +000033#endif
Eric Andersenc7bda1c2004-03-15 08:29:22 +000034
Denis Vlasenko49622d72007-03-10 16:58:49 +000035
36#if ENABLE_SELINUX
37static bool use_default_selinux_context = 1;
38
Denis Vlasenkoac678ec2007-04-16 22:32:04 +000039static void setdefaultfilecon(const char *path)
40{
Denis Vlasenko49622d72007-03-10 16:58:49 +000041 struct stat s;
42 security_context_t scontext = NULL;
43
44 if (!is_selinux_enabled()) {
45 return;
Denis Vlasenkoc86e0522007-03-20 11:30:28 +000046 }
Denis Vlasenko49622d72007-03-10 16:58:49 +000047 if (lstat(path, &s) != 0) {
48 return;
49 }
50
51 if (matchpathcon(path, s.st_mode, &scontext) < 0) {
52 goto out;
53 }
54 if (strcmp(scontext, "<<none>>") == 0) {
55 goto out;
56 }
57
58 if (lsetfilecon(path, scontext) < 0) {
59 if (errno != ENOTSUP) {
60 bb_perror_msg("warning: failed to change context of %s to %s", path, scontext);
61 }
62 }
63
64 out:
65 freecon(scontext);
66}
67
68#endif
69
Denis Vlasenko06af2162007-02-03 17:28:39 +000070int install_main(int argc, char **argv);
Rob Landleydfba7412006-03-06 20:47:33 +000071int install_main(int argc, char **argv)
Glenn L McGratheebcc1d2003-09-24 03:22:57 +000072{
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +000073 struct stat statbuf;
Glenn L McGrath578eff52004-01-23 10:57:00 +000074 mode_t mode;
75 uid_t uid;
76 gid_t gid;
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +000077 const char *gid_str;
78 const char *uid_str;
79 const char *mode_str;
Glenn L McGrath11e69472003-11-27 22:40:08 +000080 int copy_flags = FILEUTILS_DEREFERENCE | FILEUTILS_FORCE;
Rob Landleyae907f32005-10-09 11:16:01 +000081 int ret = EXIT_SUCCESS, flags, i, isdir;
Denis Vlasenko49622d72007-03-10 16:58:49 +000082#if ENABLE_SELINUX
83 security_context_t scontext;
84#endif
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +000085 enum {
86 OPT_CMD = 0x1,
87 OPT_DIRECTORY = 0x2,
88 OPT_PRESERVE_TIME = 0x4,
89 OPT_STRIP = 0x8,
90 OPT_GROUP = 0x10,
91 OPT_MODE = 0x20,
92 OPT_OWNER = 0x40,
Denis Vlasenko49622d72007-03-10 16:58:49 +000093#if ENABLE_SELINUX
94 OPT_SET_SECURITY_CONTEXT = 0x80,
95 OPT_PRESERVE_SECURITY_CONTEXT = 0x100,
96#endif
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +000097 };
98
Bernhard Reutner-Fischer01d23ad2006-05-26 20:19:22 +000099#if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
Denis Vlasenko67b23e62006-10-03 21:00:06 +0000100 applet_long_options = install_long_options;
Bernhard Reutner-Fischer01d23ad2006-05-26 20:19:22 +0000101#endif
Denis Vlasenko49622d72007-03-10 16:58:49 +0000102 opt_complementary = "?:s--d:d--s" USE_SELINUX(":Z--\xff:\xff--Z");
103 /* -c exists for backwards compatibility, it's needed */
104
105 flags = getopt32(argc, argv, "cdpsg:m:o:" USE_SELINUX("Z:"), &gid_str, &mode_str, &uid_str USE_SELINUX(, &scontext));
Denis Vlasenkoc86e0522007-03-20 11:30:28 +0000106
Denis Vlasenko49622d72007-03-10 16:58:49 +0000107#if ENABLE_SELINUX
108 if (flags & OPT_PRESERVE_SECURITY_CONTEXT) {
109 use_default_selinux_context = 0;
110 copy_flags |= FILEUTILS_PRESERVE_SECURITY_CONTEXT;
111 selinux_or_die();
112 }
113 if (flags & OPT_SET_SECURITY_CONTEXT) {
114 selinux_or_die();
Denis Vlasenko39c651e2007-03-12 18:22:55 +0000115 setfscreatecon_or_die(scontext);
Denis Vlasenko49622d72007-03-10 16:58:49 +0000116 use_default_selinux_context = 0;
117 copy_flags |= FILEUTILS_SET_SECURITY_CONTEXT;
118 }
119#endif
Glenn L McGrath11e69472003-11-27 22:40:08 +0000120
121 /* preserve access and modification time, this is GNU behaviour, BSD only preserves modification time */
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +0000122 if (flags & OPT_PRESERVE_TIME) {
Glenn L McGrath11e69472003-11-27 22:40:08 +0000123 copy_flags |= FILEUTILS_PRESERVE_STATUS;
124 }
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +0000125 mode = 0666;
126 if (flags & OPT_MODE) bb_parse_mode(mode_str, &mode);
127 uid = (flags & OPT_OWNER) ? get_ug_id(uid_str, xuname2uid) : getuid();
128 gid = (flags & OPT_GROUP) ? get_ug_id(gid_str, xgroup2gid) : getgid();
129 if (flags & (OPT_OWNER|OPT_GROUP)) umask(0);
Glenn L McGratheebcc1d2003-09-24 03:22:57 +0000130
Glenn L McGrath578eff52004-01-23 10:57:00 +0000131 /* Create directories
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +0000132 * don't use bb_make_directory() as it can't change uid or gid
Glenn L McGrath578eff52004-01-23 10:57:00 +0000133 * perhaps bb_make_directory() should be improved.
134 */
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +0000135 if (flags & OPT_DIRECTORY) {
Glenn L McGratha406a9c2003-09-24 05:00:29 +0000136 for (argv += optind; *argv; argv++) {
Glenn L McGrath578eff52004-01-23 10:57:00 +0000137 char *old_argv_ptr = *argv + 1;
138 char *argv_ptr;
Glenn L McGratha406a9c2003-09-24 05:00:29 +0000139 do {
Glenn L McGrath578eff52004-01-23 10:57:00 +0000140 argv_ptr = strchr(old_argv_ptr, '/');
141 old_argv_ptr = argv_ptr;
Glenn L McGratha406a9c2003-09-24 05:00:29 +0000142 if (argv_ptr) {
143 *argv_ptr = '\0';
Glenn L McGrath578eff52004-01-23 10:57:00 +0000144 old_argv_ptr++;
Glenn L McGratha406a9c2003-09-24 05:00:29 +0000145 }
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +0000146 if (mkdir(*argv, mode | 0111) == -1) {
Glenn L McGrath711bb922004-01-23 20:28:53 +0000147 if (errno != EEXIST) {
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +0000148 bb_perror_msg("cannot create %s", *argv);
Glenn L McGrath711bb922004-01-23 20:28:53 +0000149 ret = EXIT_FAILURE;
150 break;
151 }
Glenn L McGrath578eff52004-01-23 10:57:00 +0000152 }
Denis Vlasenko150f4022007-01-13 21:06:21 +0000153 if ((flags & (OPT_OWNER|OPT_GROUP))
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +0000154 && lchown(*argv, uid, gid) == -1
155 ) {
Glenn L McGrath578eff52004-01-23 10:57:00 +0000156 bb_perror_msg("cannot change ownership of %s", *argv);
157 ret = EXIT_FAILURE;
158 break;
159 }
160 if (argv_ptr) {
161 *argv_ptr = '/';
162 }
163 } while (old_argv_ptr);
Glenn L McGratha406a9c2003-09-24 05:00:29 +0000164 }
Denis Vlasenko079f8af2006-11-27 16:49:31 +0000165 return ret;
Glenn L McGratha406a9c2003-09-24 05:00:29 +0000166 }
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000167
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +0000168 isdir = lstat(argv[argc - 1], &statbuf) < 0 ? 0 : S_ISDIR(statbuf.st_mode);
169
Glenn L McGratheebcc1d2003-09-24 03:22:57 +0000170 for (i = optind; i < argc - 1; i++) {
Eric Andersen5e678872006-01-30 19:48:23 +0000171 char *dest;
Glenn L McGratheebcc1d2003-09-24 03:22:57 +0000172
Rob Landleyae907f32005-10-09 11:16:01 +0000173 dest = argv[argc - 1];
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +0000174 if (isdir)
175 dest = concat_path_file(argv[argc - 1], basename(argv[i]));
Glenn L McGratheebcc1d2003-09-24 03:22:57 +0000176 ret |= copy_file(argv[i], dest, copy_flags);
177
178 /* Set the file mode */
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +0000179 if ((flags & OPT_MODE) && chmod(dest, mode) == -1) {
Glenn L McGratheebcc1d2003-09-24 03:22:57 +0000180 bb_perror_msg("cannot change permissions of %s", dest);
Glenn L McGrath578eff52004-01-23 10:57:00 +0000181 ret = EXIT_FAILURE;
Glenn L McGratheebcc1d2003-09-24 03:22:57 +0000182 }
Denis Vlasenko49622d72007-03-10 16:58:49 +0000183#if ENABLE_SELINUX
184 if (use_default_selinux_context)
185 setdefaultfilecon(dest);
186#endif
Glenn L McGratheebcc1d2003-09-24 03:22:57 +0000187 /* Set the user and group id */
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +0000188 if ((flags & (OPT_OWNER|OPT_GROUP))
189 && lchown(dest, uid, gid) == -1
190 ) {
Glenn L McGratheebcc1d2003-09-24 03:22:57 +0000191 bb_perror_msg("cannot change ownership of %s", dest);
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000192 ret = EXIT_FAILURE;
Glenn L McGratheebcc1d2003-09-24 03:22:57 +0000193 }
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +0000194 if (flags & OPT_STRIP) {
Denis Vlasenko1d76f432007-02-06 01:20:12 +0000195 if (BB_EXECLP("strip", "strip", dest, NULL) == -1) {
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +0000196 bb_perror_msg("strip");
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000197 ret = EXIT_FAILURE;
Glenn L McGratheebcc1d2003-09-24 03:22:57 +0000198 }
199 }
Denis Vlasenko9a44c4f2006-12-28 05:44:47 +0000200 if (ENABLE_FEATURE_CLEAN_UP && isdir) free(dest);
Glenn L McGratheebcc1d2003-09-24 03:22:57 +0000201 }
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000202
Denis Vlasenko079f8af2006-11-27 16:49:31 +0000203 return ret;
Glenn L McGratheebcc1d2003-09-24 03:22:57 +0000204}