/* vi: set sw=4 ts=4: */
/*
- * Copyright (C) 2003 by Glenn McGrath <bug1@iinet.net.au>
+ * Copyright (C) 2003 by Glenn McGrath
+ * SELinux support: by Yuichi Nakamura <ynakam@hitachisoft.jp>
*
- * 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(...)
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-#include "busybox.h"
+/* -v, -b, -c are ignored */
+//usage:#define install_trivial_usage
+//usage: "[-cdDsp] [-o USER] [-g GRP] [-m MODE] [-t DIR] [SOURCE]... DEST"
+//usage:#define install_full_usage "\n\n"
+//usage: "Copy files and set attributes\n"
+//usage: "\n -c Just copy (default)"
+//usage: "\n -d Create directories"
+//usage: "\n -D Create leading target directories"
+//usage: "\n -s Strip symbol table"
+//usage: "\n -p Preserve date"
+//usage: "\n -o USER Set ownership"
+//usage: "\n -g GRP Set group ownership"
+//usage: "\n -m MODE Set permissions"
+//usage: "\n -t DIR Install to DIR"
+//usage: IF_SELINUX(
+//usage: "\n -Z Set security context"
+//usage: )
+
+#include "libbb.h"
#include "libcoreutils/coreutils.h"
-#include <libgen.h>
-#include <getopt.h> /* struct option */
#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 }
-};
+static const char install_longopts[] ALIGN1 =
+ IF_FEATURE_VERBOSE(
+ "verbose\0" No_argument "v"
+ )
+ "directory\0" No_argument "d"
+ "preserve-timestamps\0" No_argument "p"
+ "strip\0" No_argument "s"
+ "group\0" Required_argument "g"
+ "mode\0" Required_argument "m"
+ "owner\0" Required_argument "o"
+ "target-directory\0" Required_argument "t"
+/* autofs build insists of using -b --suffix=.orig */
+/* TODO? (short option for --suffix is -S) */
+#if ENABLE_SELINUX
+ "context\0" Required_argument "Z"
+ "preserve_context\0" No_argument "\xff"
+ "preserve-context\0" No_argument "\xff"
#endif
+ ;
+#endif
+
+#if ENABLE_SELINUX
+static void setdefaultfilecon(const char *path)
+{
+ struct stat s;
+ security_context_t scontext = NULL;
+
+ if (!is_selinux_enabled()) {
+ return;
+ }
+ if (lstat(path, &s) != 0) {
+ return;
+ }
+
+ if (matchpathcon(path, s.st_mode, &scontext) < 0) {
+ goto out;
+ }
+ if (strcmp(scontext, "<<none>>") == 0) {
+ goto out;
+ }
+
+ if (lsetfilecon(path, scontext) < 0) {
+ if (errno != ENOTSUP) {
+ bb_perror_msg("warning: can't change context"
+ " of %s to %s", path, scontext);
+ }
+ }
+
+ out:
+ freecon(scontext);
+}
+
+#endif
+
+int install_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int install_main(int argc, char **argv)
{
struct stat statbuf;
mode_t mode;
uid_t uid;
gid_t gid;
+ char *arg, *last;
const char *gid_str;
const char *uid_str;
const char *mode_str;
+ int mkdir_flags = FILEUTILS_RECUR;
int copy_flags = FILEUTILS_DEREFERENCE | FILEUTILS_FORCE;
- int ret = EXIT_SUCCESS, flags, i, isdir;
-
+ int opts;
+ int ret = EXIT_SUCCESS;
+ int isdir;
+#if ENABLE_SELINUX
+ security_context_t scontext;
+ bool use_default_selinux_context = 1;
+#endif
enum {
- OPT_CMD = 0x1,
- OPT_DIRECTORY = 0x2,
- OPT_PRESERVE_TIME = 0x4,
- OPT_STRIP = 0x8,
- OPT_GROUP = 0x10,
- OPT_MODE = 0x20,
- OPT_OWNER = 0x40,
+ OPT_c = 1 << 0,
+ OPT_v = 1 << 1,
+ OPT_b = 1 << 2,
+ OPT_MKDIR_LEADING = 1 << 3,
+ OPT_DIRECTORY = 1 << 4,
+ OPT_PRESERVE_TIME = 1 << 5,
+ OPT_STRIP = 1 << 6,
+ OPT_GROUP = 1 << 7,
+ OPT_MODE = 1 << 8,
+ OPT_OWNER = 1 << 9,
+ OPT_TARGET = 1 << 10,
+#if ENABLE_SELINUX
+ OPT_SET_SECURITY_CONTEXT = 1 << 11,
+ OPT_PRESERVE_SECURITY_CONTEXT = 1 << 12,
+#endif
};
#if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
- applet_long_options = install_long_options;
+ applet_long_options = install_longopts;
+#endif
+ opt_complementary = "t--d:d--t:s--d:d--s" IF_FEATURE_INSTALL_LONG_OPTIONS(IF_SELINUX(":Z--\xff:\xff--Z"));
+ /* -c exists for backwards compatibility, it's needed */
+ /* -b is ignored ("make a backup of each existing destination file") */
+ opts = getopt32(argv, "cvb" "Ddpsg:m:o:t:" IF_SELINUX("Z:"),
+ &gid_str, &mode_str, &uid_str, &last
+ IF_SELINUX(, &scontext));
+ argc -= optind;
+ argv += optind;
+
+#if ENABLE_SELINUX
+ if (opts & (OPT_PRESERVE_SECURITY_CONTEXT|OPT_SET_SECURITY_CONTEXT)) {
+ selinux_or_die();
+ use_default_selinux_context = 0;
+ if (opts & OPT_PRESERVE_SECURITY_CONTEXT) {
+ copy_flags |= FILEUTILS_PRESERVE_SECURITY_CONTEXT;
+ }
+ if (opts & OPT_SET_SECURITY_CONTEXT) {
+ setfscreatecon_or_die(scontext);
+ copy_flags |= FILEUTILS_SET_SECURITY_CONTEXT;
+ }
+ }
#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);
- /* preserve access and modification time, this is GNU behaviour, BSD only preserves modification time */
- if (flags & OPT_PRESERVE_TIME) {
+ if ((opts & OPT_v) && FILEUTILS_VERBOSE) {
+ mkdir_flags |= FILEUTILS_VERBOSE;
+ copy_flags |= FILEUTILS_VERBOSE;
+ }
+
+ /* preserve access and modification time, this is GNU behaviour,
+ * BSD only preserves modification time */
+ if (opts & OPT_PRESERVE_TIME) {
copy_flags |= FILEUTILS_PRESERVE_STATUS;
}
- mode = 0666;
- if (flags & OPT_MODE) bb_parse_mode(mode_str, &mode);
- uid = (flags & OPT_OWNER) ? get_ug_id(uid_str, xuname2uid) : getuid();
- gid = (flags & OPT_GROUP) ? get_ug_id(gid_str, xgroup2gid) : getgid();
- if (flags & (OPT_OWNER|OPT_GROUP)) 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 & 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;
+ mode = 0755; /* GNU coreutils 6.10 compat */
+ if (opts & OPT_MODE)
+ mode = bb_parse_mode(mode_str, mode);
+ uid = (opts & OPT_OWNER) ? get_ug_id(uid_str, xuname2uid) : getuid();
+ gid = (opts & OPT_GROUP) ? get_ug_id(gid_str, xgroup2gid) : getgid();
+
+ /* If -t DIR is in use, then isdir=true, last="DIR" */
+ isdir = (opts & OPT_TARGET);
+ if (!(opts & (OPT_TARGET|OPT_DIRECTORY))) {
+ /* Neither -t DIR nor -d is in use */
+ argc--;
+ last = argv[argc];
+ argv[argc] = NULL;
+ /* coreutils install resolves link in this case, don't use lstat */
+ isdir = stat(last, &statbuf) < 0 ? 0 : S_ISDIR(statbuf.st_mode);
}
- isdir = lstat(argv[argc - 1], &statbuf) < 0 ? 0 : S_ISDIR(statbuf.st_mode);
+ if (argc < 1)
+ bb_show_usage();
- for (i = optind; i < argc - 1; i++) {
+ while ((arg = *argv++) != NULL) {
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);
+ if (opts & OPT_DIRECTORY) {
+ dest = arg;
+ /* GNU coreutils 6.9 does not set uid:gid
+ * on intermediate created directories
+ * (only on last one) */
+ if (bb_make_directory(dest, 0755, mkdir_flags)) {
+ ret = EXIT_FAILURE;
+ goto next;
+ }
+ } else {
+ dest = last;
+ if (opts & OPT_MKDIR_LEADING) {
+ char *ddir = xstrdup(dest);
+ bb_make_directory(dirname(ddir), 0755, mkdir_flags);
+ /* errors are not checked. copy_file
+ * will fail if dir is not created. */
+ free(ddir);
+ }
+ if (isdir)
+ dest = concat_path_file(last, bb_basename(arg));
+ if (copy_file(arg, dest, copy_flags) != 0) {
+ /* copy is not made */
+ ret = EXIT_FAILURE;
+ goto next;
+ }
+ if (opts & OPT_STRIP) {
+ char *args[4];
+ args[0] = (char*)"strip";
+ args[1] = (char*)"-p"; /* -p --preserve-dates */
+ args[2] = dest;
+ args[3] = NULL;
+ if (spawn_and_wait(args)) {
+ bb_perror_msg("strip");
+ ret = EXIT_FAILURE;
+ }
+ }
+ }
- /* Set the file mode */
- if ((flags & OPT_MODE) && chmod(dest, mode) == -1) {
- bb_perror_msg("cannot change permissions of %s", dest);
+ /* Set the file mode (always, not only with -m).
+ * GNU coreutils 6.10 is not affected by umask. */
+ if (chmod(dest, mode) == -1) {
+ bb_perror_msg("can't change %s of %s", "permissions", dest);
ret = EXIT_FAILURE;
}
-
+#if ENABLE_SELINUX
+ if (use_default_selinux_context)
+ setdefaultfilecon(dest);
+#endif
/* Set the user and group id */
- if ((flags & (OPT_OWNER|OPT_GROUP))
+ if ((opts & (OPT_OWNER|OPT_GROUP))
&& lchown(dest, uid, gid) == -1
) {
- bb_perror_msg("cannot change ownership of %s", dest);
+ bb_perror_msg("can't change %s of %s", "ownership", dest);
ret = EXIT_FAILURE;
}
- if (flags & OPT_STRIP) {
- if (execlp("strip", "strip", dest, NULL) == -1) {
- bb_perror_msg("strip");
- ret = EXIT_FAILURE;
- }
- }
- if (ENABLE_FEATURE_CLEAN_UP && isdir) free(dest);
+ next:
+ if (ENABLE_FEATURE_CLEAN_UP && isdir)
+ free(dest);
}
return ret;
projects / oweals / busybox.git / blobdiff