| /* vi: set sw=4 ts=4: */ |
| /* |
| * 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(...) |
| */ |
| |
| #include "libbb.h" |
| #include "libcoreutils/coreutils.h" |
| |
| #if ENABLE_FEATURE_INSTALL_LONG_OPTIONS |
| static const char install_longopts[] ALIGN1 = |
| "directory\0" No_argument "d" |
| "preserve-timestamps\0" No_argument "p" |
| "strip\0" No_argument "s" |
| "group\0" No_argument "g" |
| "mode\0" No_argument "m" |
| "owner\0" No_argument "o" |
| /* 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: failed to 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 copy_flags = FILEUTILS_DEREFERENCE | FILEUTILS_FORCE; |
| int flags; |
| int ret = EXIT_SUCCESS; |
| int isdir; |
| #if ENABLE_SELINUX |
| security_context_t scontext; |
| bool use_default_selinux_context = 1; |
| #endif |
| enum { |
| OPT_c = 1 << 0, |
| OPT_v = 1 << 1, |
| OPT_b = 1 << 2, |
| OPT_DIRECTORY = 1 << 3, |
| OPT_PRESERVE_TIME = 1 << 4, |
| OPT_STRIP = 1 << 5, |
| OPT_GROUP = 1 << 6, |
| OPT_MODE = 1 << 7, |
| OPT_OWNER = 1 << 8, |
| #if ENABLE_SELINUX |
| OPT_SET_SECURITY_CONTEXT = 1 << 9, |
| OPT_PRESERVE_SECURITY_CONTEXT = 1 << 10, |
| #endif |
| }; |
| |
| #if ENABLE_FEATURE_INSTALL_LONG_OPTIONS |
| applet_long_options = install_longopts; |
| #endif |
| opt_complementary = "s--d:d--s" USE_SELINUX(":Z--\xff:\xff--Z"); |
| /* -c exists for backwards compatibility, it's needed */ |
| /* -v is ignored ("print name of each created directory") */ |
| /* -b is ignored ("make a backup of each existing destination file") */ |
| flags = getopt32(argv, "cvb" "dpsg:m:o:" USE_SELINUX("Z:"), |
| &gid_str, &mode_str, &uid_str USE_SELINUX(, &scontext)); |
| argc -= optind; |
| argv += optind; |
| |
| #if ENABLE_SELINUX |
| if (flags & (OPT_PRESERVE_SECURITY_CONTEXT|OPT_SET_SECURITY_CONTEXT)) { |
| selinux_or_die(); |
| use_default_selinux_context = 0; |
| if (flags & OPT_PRESERVE_SECURITY_CONTEXT) { |
| copy_flags |= FILEUTILS_PRESERVE_SECURITY_CONTEXT; |
| } |
| if (flags & OPT_SET_SECURITY_CONTEXT) { |
| setfscreatecon_or_die(scontext); |
| copy_flags |= FILEUTILS_SET_SECURITY_CONTEXT; |
| } |
| } |
| #endif |
| |
| /* preserve access and modification time, this is GNU behaviour, BSD only preserves modification time */ |
| if (flags & 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) { |
| while ((arg = *argv++) != NULL) { |
| char *slash = arg; |
| while (1) { |
| slash = strchr(slash + 1, '/'); |
| if (slash) |
| *slash = '\0'; |
| if (mkdir(arg, mode | 0111) == -1) { |
| if (errno != EEXIST) { |
| bb_perror_msg("cannot create %s", arg); |
| ret = EXIT_FAILURE; |
| break; |
| } |
| } /* dir was created, chown? */ |
| else if ((flags & (OPT_OWNER|OPT_GROUP)) |
| && lchown(arg, uid, gid) == -1 |
| ) { |
| bb_perror_msg("cannot change ownership of %s", arg); |
| ret = EXIT_FAILURE; |
| break; |
| } |
| if (!slash) |
| break; |
| *slash = '/'; |
| } |
| } |
| return ret; |
| } |
| |
| if (argc < 2) |
| bb_show_usage(); |
| |
| last = argv[argc - 1]; |
| argv[argc - 1] = NULL; |
| /* coreutils install resolves link in this case, don't use lstat */ |
| isdir = stat(last, &statbuf) < 0 ? 0 : S_ISDIR(statbuf.st_mode); |
| |
| while ((arg = *argv++) != NULL) { |
| char *dest = last; |
| if (isdir) |
| dest = concat_path_file(last, basename(arg)); |
| if (copy_file(arg, dest, copy_flags)) { |
| /* copy is not made */ |
| ret = EXIT_FAILURE; |
| goto next; |
| } |
| |
| /* Set the file mode */ |
| if ((flags & OPT_MODE) && chmod(dest, mode) == -1) { |
| bb_perror_msg("cannot change permissions of %s", 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)) |
| && lchown(dest, uid, gid) == -1 |
| ) { |
| bb_perror_msg("cannot change ownership of %s", dest); |
| ret = EXIT_FAILURE; |
| } |
| if (flags & OPT_STRIP) { |
| char *args[3]; |
| args[0] = (char*)"strip"; |
| args[1] = dest; |
| args[2] = NULL; |
| if (spawn_and_wait(args)) { |
| bb_perror_msg("strip"); |
| ret = EXIT_FAILURE; |
| } |
| } |
| next: |
| if (ENABLE_FEATURE_CLEAN_UP && isdir) |
| free(dest); |
| } |
| |
| return ret; |
| } |