+ if (S_ISDIR(source_stat.st_mode)) {
+ DIR *dp;
+ struct dirent *d;
+ mode_t saved_umask = 0;
+
+ if (!(flags & FILEUTILS_RECUR)) {
+ bb_error_msg("omitting directory '%s'", source);
+ return -1;
+ }
+
+ /* Create DEST. */
+ if (dest_exists) {
+ if (!S_ISDIR(dest_stat.st_mode)) {
+ bb_error_msg("target '%s' is not a directory", dest);
+ return -1;
+ }
+ } else {
+ mode_t mode;
+ saved_umask = umask(0);
+
+ mode = source_stat.st_mode;
+ if (!(flags & FILEUTILS_PRESERVE_STATUS))
+ mode = source_stat.st_mode & ~saved_umask;
+ mode |= S_IRWXU;
+
+ if (mkdir(dest, mode) < 0) {
+ umask(saved_umask);
+ bb_perror_msg("cannot create directory '%s'", dest);
+ return -1;
+ }
+
+ umask(saved_umask);
+ }
+
+ /* Recursively copy files in SOURCE. */
+ dp = opendir(source);
+ if (dp == NULL) {
+ status = -1;
+ goto preserve_status;
+ }
+
+ while ((d = readdir(dp)) != NULL) {
+ char *new_source, *new_dest;
+
+ new_source = concat_subpath_file(source, d->d_name);
+ if (new_source == NULL)
+ continue;
+ new_dest = concat_path_file(dest, d->d_name);
+ if (copy_file(new_source, new_dest, flags) < 0)
+ status = -1;
+ free(new_source);
+ free(new_dest);
+ }
+ closedir(dp);
+
+ if (!dest_exists
+ && chmod(dest, source_stat.st_mode & ~saved_umask) < 0
+ ) {
+ bb_perror_msg("cannot change permissions of '%s'", dest);
+ status = -1;
+ }
+
+ } else if (flags & (FILEUTILS_MAKE_SOFTLINK|FILEUTILS_MAKE_HARDLINK)) {
+ int (*lf)(const char *oldpath, const char *newpath);
+ make_links:
+ // Hmm... maybe
+ // if (DEREF && MAKE_SOFTLINK) source = realpath(source) ?
+ // (but realpath returns NULL on dangling symlinks...)
+ lf = (flags & FILEUTILS_MAKE_SOFTLINK) ? symlink : link;
+ if (lf(source, dest) < 0) {
+ ovr = retry_overwrite(dest, flags);
+ if (ovr <= 0)
+ return ovr;
+ if (lf(source, dest) < 0) {
+ bb_perror_msg("cannot create link '%s'", dest);
+ return -1;
+ }
+ }
+ return 0;
+
+ } else if (S_ISREG(source_stat.st_mode)
+ // Huh? DEREF uses stat, which never returns links IIRC...
+ || (FLAGS_DEREF && S_ISLNK(source_stat.st_mode))
+ ) {
+ int src_fd;
+ int dst_fd;
+ if (ENABLE_FEATURE_PRESERVE_HARDLINKS) {
+ char *link_name;
+
+ if (!FLAGS_DEREF
+ && is_in_ino_dev_hashtable(&source_stat, &link_name)
+ ) {
+ if (link(link_name, dest) < 0) {
+ ovr = retry_overwrite(dest, flags);
+ if (ovr <= 0)
+ return ovr;
+ if (link(link_name, dest) < 0) {
+ bb_perror_msg("cannot create link '%s'", dest);
+ return -1;
+ }
+ }
+ return 0;
+ }
+ // TODO: probably is_in_.. and add_to_...
+ // can be combined: find_or_add_...
+ add_to_ino_dev_hashtable(&source_stat, dest);
+ }
+
+ src_fd = open(source, O_RDONLY);
+ if (src_fd == -1) {
+ bb_perror_msg("cannot open '%s'", source);
+ return -1;
+ }
+
+ // POSIX: if exists and -i, ask (w/o -i assume yes).
+ // Then open w/o EXCL.
+ // If open still fails and -f, try unlink, then try open again.
+ // Result: a mess:
+ // If dest is a softlink, we overwrite softlink's destination!
+ // (or fail, if it points to dir/nonexistent location/etc).
+ // This is strange, but POSIX-correct.
+ // coreutils cp has --remove-destination to override this...
+ dst_fd = open(dest, (flags & FILEUTILS_INTERACTIVE)
+ ? O_WRONLY|O_CREAT|O_TRUNC|O_EXCL
+ : O_WRONLY|O_CREAT|O_TRUNC, source_stat.st_mode);
+ if (dst_fd == -1) {
+ // We would not do POSIX insanity. -i asks,
+ // then _unlinks_ the offender. Presto.
+ // Or else we will end up having 3 open()s!
+ ovr = retry_overwrite(dest, flags);
+ if (ovr <= 0) {
+ close(src_fd);
+ return ovr;
+ }
+ dst_fd = open(dest, O_WRONLY|O_CREAT|O_TRUNC, source_stat.st_mode);
+ if (dst_fd == -1) {
+ bb_perror_msg("cannot open '%s'", dest);
+ close(src_fd);
+ return -1;
+ }
+ }
+
+ if (bb_copyfd_eof(src_fd, dst_fd) == -1)
+ status = -1;
+ if (close(dst_fd) < 0) {
+ bb_perror_msg("cannot close '%s'", dest);
+ status = -1;
+ }
+ if (close(src_fd) < 0) {
+ bb_perror_msg("cannot close '%s'", source);
+ status = -1;
+ }
+
+ } else if (S_ISBLK(source_stat.st_mode) || S_ISCHR(source_stat.st_mode)
+ || S_ISSOCK(source_stat.st_mode) || S_ISFIFO(source_stat.st_mode)
+ || S_ISLNK(source_stat.st_mode)
+ ) {
+ // We are lazy here, a bit lax with races...
+ if (dest_exists) {
+ ovr = retry_overwrite(dest, flags);
+ if (ovr <= 0)
+ return ovr;
+ }
+ if (S_ISFIFO(source_stat.st_mode)) {
+ if (mkfifo(dest, source_stat.st_mode) < 0) {
+ bb_perror_msg("cannot create fifo '%s'", dest);
+ return -1;
+ }
+ } else if (S_ISLNK(source_stat.st_mode)) {
+ char *lpath;
+
+ lpath = xreadlink(source);
+ if (symlink(lpath, dest) < 0) {
+ bb_perror_msg("cannot create symlink '%s'", dest);
+ free(lpath);
+ return -1;
+ }
+ free(lpath);
+
+ if (flags & FILEUTILS_PRESERVE_STATUS)
+ if (lchown(dest, source_stat.st_uid, source_stat.st_gid) < 0)
+ bb_perror_msg("cannot preserve %s of '%s'", "ownership", dest);
+
+ return 0;
+
+ } else {
+ if (mknod(dest, source_stat.st_mode, source_stat.st_rdev) < 0) {
+ bb_perror_msg("cannot create '%s'", dest);
+ return -1;
+ }
+ }
+ } else {
+ bb_error_msg("internal error: unrecognized file type");
+ return -1;