1 /* vi: set sw=4 ts=4: */
3 * Copyright (C) 2003 by Glenn McGrath
4 * SELinux support: by Yuichi Nakamura <ynakam@hitachisoft.jp>
6 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
8 //config:config INSTALL
9 //config: bool "install"
12 //config: Copy files and set attributes.
14 //config:config FEATURE_INSTALL_LONG_OPTIONS
15 //config: bool "Enable long options"
17 //config: depends on INSTALL && LONG_OPTS
19 //applet:IF_INSTALL(APPLET(install, BB_DIR_USR_BIN, BB_SUID_DROP))
21 //kbuild:lib-$(CONFIG_INSTALL) += install.o
23 /* -v, -b, -c are ignored */
24 //usage:#define install_trivial_usage
25 //usage: "[-cdDsp] [-o USER] [-g GRP] [-m MODE] [-t DIR] [SOURCE]... DEST"
26 //usage:#define install_full_usage "\n\n"
27 //usage: "Copy files and set attributes\n"
28 //usage: "\n -c Just copy (default)"
29 //usage: "\n -d Create directories"
30 //usage: "\n -D Create leading target directories"
31 //usage: "\n -s Strip symbol table"
32 //usage: "\n -p Preserve date"
33 //usage: "\n -o USER Set ownership"
34 //usage: "\n -g GRP Set group ownership"
35 //usage: "\n -m MODE Set permissions"
36 //usage: "\n -t DIR Install to DIR"
38 //usage: "\n -Z Set security context"
42 #include "libcoreutils/coreutils.h"
44 #if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
45 static const char install_longopts[] ALIGN1 =
47 "verbose\0" No_argument "v"
49 "directory\0" No_argument "d"
50 "preserve-timestamps\0" No_argument "p"
51 "strip\0" No_argument "s"
52 "group\0" Required_argument "g"
53 "mode\0" Required_argument "m"
54 "owner\0" Required_argument "o"
55 "target-directory\0" Required_argument "t"
56 /* autofs build insists of using -b --suffix=.orig */
57 /* TODO? (short option for --suffix is -S) */
59 "context\0" Required_argument "Z"
60 "preserve_context\0" No_argument "\xff"
61 "preserve-context\0" No_argument "\xff"
68 static void setdefaultfilecon(const char *path)
71 security_context_t scontext = NULL;
73 if (!is_selinux_enabled()) {
76 if (lstat(path, &s) != 0) {
80 if (matchpathcon(path, s.st_mode, &scontext) < 0) {
83 if (strcmp(scontext, "<<none>>") == 0) {
87 if (lsetfilecon(path, scontext) < 0) {
88 if (errno != ENOTSUP) {
89 bb_perror_msg("warning: can't change context"
90 " of %s to %s", path, scontext);
100 int install_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
101 int install_main(int argc, char **argv)
110 const char *mode_str;
111 int mkdir_flags = FILEUTILS_RECUR;
112 int copy_flags = FILEUTILS_DEREFERENCE | FILEUTILS_FORCE;
114 int ret = EXIT_SUCCESS;
117 security_context_t scontext;
118 bool use_default_selinux_context = 1;
124 OPT_MKDIR_LEADING = 1 << 3,
125 OPT_DIRECTORY = 1 << 4,
126 OPT_PRESERVE_TIME = 1 << 5,
131 OPT_TARGET = 1 << 10,
133 OPT_SET_SECURITY_CONTEXT = 1 << 11,
134 OPT_PRESERVE_SECURITY_CONTEXT = 1 << 12,
138 #if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
139 applet_long_options = install_longopts;
141 opt_complementary = "t--d:d--t:s--d:d--s" IF_FEATURE_INSTALL_LONG_OPTIONS(IF_SELINUX(":Z--\xff:\xff--Z"));
142 /* -c exists for backwards compatibility, it's needed */
143 /* -b is ignored ("make a backup of each existing destination file") */
144 opts = getopt32(argv, "cvb" "Ddpsg:m:o:t:" IF_SELINUX("Z:"),
145 &gid_str, &mode_str, &uid_str, &last
146 IF_SELINUX(, &scontext));
151 if (opts & (OPT_PRESERVE_SECURITY_CONTEXT|OPT_SET_SECURITY_CONTEXT)) {
153 use_default_selinux_context = 0;
154 if (opts & OPT_PRESERVE_SECURITY_CONTEXT) {
155 copy_flags |= FILEUTILS_PRESERVE_SECURITY_CONTEXT;
157 if (opts & OPT_SET_SECURITY_CONTEXT) {
158 setfscreatecon_or_die(scontext);
159 copy_flags |= FILEUTILS_SET_SECURITY_CONTEXT;
164 if ((opts & OPT_v) && FILEUTILS_VERBOSE) {
165 mkdir_flags |= FILEUTILS_VERBOSE;
166 copy_flags |= FILEUTILS_VERBOSE;
169 /* preserve access and modification time, this is GNU behaviour,
170 * BSD only preserves modification time */
171 if (opts & OPT_PRESERVE_TIME) {
172 copy_flags |= FILEUTILS_PRESERVE_STATUS;
174 mode = 0755; /* GNU coreutils 6.10 compat */
176 mode = bb_parse_mode(mode_str, mode);
177 uid = (opts & OPT_OWNER) ? get_ug_id(uid_str, xuname2uid) : getuid();
178 gid = (opts & OPT_GROUP) ? get_ug_id(gid_str, xgroup2gid) : getgid();
180 /* If -t DIR is in use, then isdir=true, last="DIR" */
181 isdir = (opts & OPT_TARGET);
182 if (!(opts & (OPT_TARGET|OPT_DIRECTORY))) {
183 /* Neither -t DIR nor -d is in use */
187 /* coreutils install resolves link in this case, don't use lstat */
188 isdir = stat(last, &statbuf) < 0 ? 0 : S_ISDIR(statbuf.st_mode);
194 while ((arg = *argv++) != NULL) {
197 if (opts & OPT_DIRECTORY) {
199 /* GNU coreutils 6.9 does not set uid:gid
200 * on intermediate created directories
201 * (only on last one) */
202 if (bb_make_directory(dest, 0755, mkdir_flags)) {
208 if (opts & OPT_MKDIR_LEADING) {
209 char *ddir = xstrdup(dest);
210 bb_make_directory(dirname(ddir), 0755, mkdir_flags);
211 /* errors are not checked. copy_file
212 * will fail if dir is not created.
217 dest = concat_path_file(last, bb_basename(arg));
218 if (copy_file(arg, dest, copy_flags) != 0) {
219 /* copy is not made */
223 if (opts & OPT_STRIP) {
225 args[0] = (char*)"strip";
226 args[1] = (char*)"-p"; /* -p --preserve-dates */
229 if (spawn_and_wait(args)) {
230 bb_perror_msg("strip");
236 /* Set the file mode (always, not only with -m).
237 * GNU coreutils 6.10 is not affected by umask. */
238 if (chmod(dest, mode) == -1) {
239 bb_perror_msg("can't change %s of %s", "permissions", dest);
243 if (use_default_selinux_context)
244 setdefaultfilecon(dest);
246 /* Set the user and group id */
247 if ((opts & (OPT_OWNER|OPT_GROUP))
248 && lchown(dest, uid, gid) == -1
250 bb_perror_msg("can't change %s of %s", "ownership", dest);
254 if (ENABLE_FEATURE_CLEAN_UP && isdir)