/* 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 source tree. */ //config:config INSTALL //config: bool "install (12 kb)" //config: default y //config: help //config: Copy files and set attributes. //config: //config:config FEATURE_INSTALL_LONG_OPTIONS //config: bool "Enable long options" //config: default y //config: depends on INSTALL && LONG_OPTS //applet:IF_INSTALL(APPLET(install, BB_DIR_USR_BIN, BB_SUID_DROP)) //kbuild:lib-$(CONFIG_INSTALL) += install.o /* -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" #if ENABLE_FEATURE_INSTALL_LONG_OPTIONS 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 ; # define GETOPT32 getopt32long # define LONGOPTS install_longopts, #else # define GETOPT32 getopt32 # define LONGOPTS #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 opts; 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_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 }; /* -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:") "\0" "t--d:d--t:s--d:d--s" IF_FEATURE_INSTALL_LONG_OPTIONS(IF_SELINUX(":Z--\xff:\xff--Z")), LONGOPTS &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 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 = 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); } if (argc < 1) bb_show_usage(); while ((arg = *argv++) != NULL) { char *dest; 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); /* * -D -t DIR1/DIR2/F3 FILE: create DIR1/DIR2/F3, copy FILE there * -D FILE DIR1/DIR2/F3: create DIR1/DIR2, copy FILE there as F3 */ bb_make_directory((opts & OPT_TARGET) ? ddir : 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_simple_perror_msg("strip"); ret = EXIT_FAILURE; } } } /* 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 ((opts & (OPT_OWNER|OPT_GROUP)) && lchown(dest, uid, gid) == -1 ) { bb_perror_msg("can't change %s of %s", "ownership", dest); ret = EXIT_FAILURE; } next: if (ENABLE_FEATURE_CLEAN_UP && isdir) free(dest); } return ret; }