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 //config: Support long options for the install applet.
21 //applet:IF_INSTALL(APPLET(install, BB_DIR_USR_BIN, BB_SUID_DROP))
23 //kbuild:lib-$(CONFIG_INSTALL) += install.o
25 /* -v, -b, -c are ignored */
26 //usage:#define install_trivial_usage
27 //usage: "[-cdDsp] [-o USER] [-g GRP] [-m MODE] [-t DIR] [SOURCE]... DEST"
28 //usage:#define install_full_usage "\n\n"
29 //usage: "Copy files and set attributes\n"
30 //usage: "\n -c Just copy (default)"
31 //usage: "\n -d Create directories"
32 //usage: "\n -D Create leading target directories"
33 //usage: "\n -s Strip symbol table"
34 //usage: "\n -p Preserve date"
35 //usage: "\n -o USER Set ownership"
36 //usage: "\n -g GRP Set group ownership"
37 //usage: "\n -m MODE Set permissions"
38 //usage: "\n -t DIR Install to DIR"
40 //usage: "\n -Z Set security context"
44 #include "libcoreutils/coreutils.h"
46 #if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
47 static const char install_longopts[] ALIGN1 =
49 "verbose\0" No_argument "v"
51 "directory\0" No_argument "d"
52 "preserve-timestamps\0" No_argument "p"
53 "strip\0" No_argument "s"
54 "group\0" Required_argument "g"
55 "mode\0" Required_argument "m"
56 "owner\0" Required_argument "o"
57 "target-directory\0" Required_argument "t"
58 /* autofs build insists of using -b --suffix=.orig */
59 /* TODO? (short option for --suffix is -S) */
61 "context\0" Required_argument "Z"
62 "preserve_context\0" No_argument "\xff"
63 "preserve-context\0" No_argument "\xff"
70 static void setdefaultfilecon(const char *path)
73 security_context_t scontext = NULL;
75 if (!is_selinux_enabled()) {
78 if (lstat(path, &s) != 0) {
82 if (matchpathcon(path, s.st_mode, &scontext) < 0) {
85 if (strcmp(scontext, "<<none>>") == 0) {
89 if (lsetfilecon(path, scontext) < 0) {
90 if (errno != ENOTSUP) {
91 bb_perror_msg("warning: can't change context"
92 " of %s to %s", path, scontext);
102 int install_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
103 int install_main(int argc, char **argv)
112 const char *mode_str;
113 int mkdir_flags = FILEUTILS_RECUR;
114 int copy_flags = FILEUTILS_DEREFERENCE | FILEUTILS_FORCE;
116 int ret = EXIT_SUCCESS;
119 security_context_t scontext;
120 bool use_default_selinux_context = 1;
126 OPT_MKDIR_LEADING = 1 << 3,
127 OPT_DIRECTORY = 1 << 4,
128 OPT_PRESERVE_TIME = 1 << 5,
133 OPT_TARGET = 1 << 10,
135 OPT_SET_SECURITY_CONTEXT = 1 << 11,
136 OPT_PRESERVE_SECURITY_CONTEXT = 1 << 12,
140 #if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
141 applet_long_options = install_longopts;
143 opt_complementary = "t--d:d--t:s--d:d--s" IF_FEATURE_INSTALL_LONG_OPTIONS(IF_SELINUX(":Z--\xff:\xff--Z"));
144 /* -c exists for backwards compatibility, it's needed */
145 /* -b is ignored ("make a backup of each existing destination file") */
146 opts = getopt32(argv, "cvb" "Ddpsg:m:o:t:" IF_SELINUX("Z:"),
147 &gid_str, &mode_str, &uid_str, &last
148 IF_SELINUX(, &scontext));
153 if (opts & (OPT_PRESERVE_SECURITY_CONTEXT|OPT_SET_SECURITY_CONTEXT)) {
155 use_default_selinux_context = 0;
156 if (opts & OPT_PRESERVE_SECURITY_CONTEXT) {
157 copy_flags |= FILEUTILS_PRESERVE_SECURITY_CONTEXT;
159 if (opts & OPT_SET_SECURITY_CONTEXT) {
160 setfscreatecon_or_die(scontext);
161 copy_flags |= FILEUTILS_SET_SECURITY_CONTEXT;
166 if ((opts & OPT_v) && FILEUTILS_VERBOSE) {
167 mkdir_flags |= FILEUTILS_VERBOSE;
168 copy_flags |= FILEUTILS_VERBOSE;
171 /* preserve access and modification time, this is GNU behaviour,
172 * BSD only preserves modification time */
173 if (opts & OPT_PRESERVE_TIME) {
174 copy_flags |= FILEUTILS_PRESERVE_STATUS;
176 mode = 0755; /* GNU coreutils 6.10 compat */
178 mode = bb_parse_mode(mode_str, mode);
179 uid = (opts & OPT_OWNER) ? get_ug_id(uid_str, xuname2uid) : getuid();
180 gid = (opts & OPT_GROUP) ? get_ug_id(gid_str, xgroup2gid) : getgid();
182 /* If -t DIR is in use, then isdir=true, last="DIR" */
183 isdir = (opts & OPT_TARGET);
184 if (!(opts & (OPT_TARGET|OPT_DIRECTORY))) {
185 /* Neither -t DIR nor -d is in use */
189 /* coreutils install resolves link in this case, don't use lstat */
190 isdir = stat(last, &statbuf) < 0 ? 0 : S_ISDIR(statbuf.st_mode);
196 while ((arg = *argv++) != NULL) {
199 if (opts & OPT_DIRECTORY) {
201 /* GNU coreutils 6.9 does not set uid:gid
202 * on intermediate created directories
203 * (only on last one) */
204 if (bb_make_directory(dest, 0755, mkdir_flags)) {
210 if (opts & OPT_MKDIR_LEADING) {
211 char *ddir = xstrdup(dest);
212 char *dn = dirname(ddir);
213 /* musl can return read-only "/" or "." string.
214 * bb_make_directory needs writable string.
216 if ((dn[0] != '/' && dn[0] != '.') || dn[1] != '\0') {
217 bb_make_directory(dn, 0755, mkdir_flags);
218 /* errors are not checked. copy_file
219 * will fail if dir is not created.
225 dest = concat_path_file(last, bb_basename(arg));
226 if (copy_file(arg, dest, copy_flags) != 0) {
227 /* copy is not made */
231 if (opts & OPT_STRIP) {
233 args[0] = (char*)"strip";
234 args[1] = (char*)"-p"; /* -p --preserve-dates */
237 if (spawn_and_wait(args)) {
238 bb_perror_msg("strip");
244 /* Set the file mode (always, not only with -m).
245 * GNU coreutils 6.10 is not affected by umask. */
246 if (chmod(dest, mode) == -1) {
247 bb_perror_msg("can't change %s of %s", "permissions", dest);
251 if (use_default_selinux_context)
252 setdefaultfilecon(dest);
254 /* Set the user and group id */
255 if ((opts & (OPT_OWNER|OPT_GROUP))
256 && lchown(dest, uid, gid) == -1
258 bb_perror_msg("can't change %s of %s", "ownership", dest);
262 if (ENABLE_FEATURE_CLEAN_UP && isdir)