/* 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. */ #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" Required_argument "g" "mode\0" Required_argument "m" "owner\0" Required_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 opts; int min_args = 1; int ret = EXIT_SUCCESS; int isdir = 0; #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_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, #if ENABLE_SELINUX OPT_SET_SECURITY_CONTEXT = 1 << 10, OPT_PRESERVE_SECURITY_CONTEXT = 1 << 11, #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") */ opts = getopt32(argv, "cvb" "Ddpsg:m:o:" USE_SELINUX("Z:"), &gid_str, &mode_str, &uid_str USE_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 /* 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 (opts & OPT_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(); last = argv[argc - 1]; if (!(opts & OPT_DIRECTORY)) { argv[argc - 1] = NULL; min_args++; /* coreutils install resolves link in this case, don't use lstat */ isdir = stat(last, &statbuf) < 0 ? 0 : S_ISDIR(statbuf.st_mode); } if (argc < min_args) bb_show_usage(); while ((arg = *argv++) != NULL) { char *dest = last; 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, FILEUTILS_RECUR)) { ret = EXIT_FAILURE; goto next; } } else { if (opts & OPT_MKDIR_LEADING) { char *ddir = xstrdup(dest); bb_make_directory(dirname(ddir), 0755, FILEUTILS_RECUR); /* errors are not checked. copy_file * will fail if dir is not created. */ free(ddir); } 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 ((opts & OPT_MODE) && 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 ((opts & (OPT_OWNER|OPT_GROUP)) && lchown(dest, uid, gid) == -1 ) { bb_perror_msg("can't change %s of %s", "ownership", dest); ret = EXIT_FAILURE; } if (opts & 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; }