+/* Delete a file or directory. If DEL_RECURSE is set in the flags, this will
+ * delete recursively.
+ *
+ * Note that fbuf must point to a MAXPATHLEN buffer if the mode indicates it's
+ * a directory! (The buffer is used for recursion, but returned unchanged.)
+ */
+static enum delret delete_item(char *fbuf, uint16 mode, uint16 flags)
+{
+ enum delret ret;
+ char *what;
+ int ok;
+
+ if (verbose > 2) {
+ rprintf(FINFO, "delete_item(%s) mode=%o flags=%d\n",
+ fbuf, (int)mode, (int)flags);
+ }
+
+ if (flags & DEL_NO_UID_WRITE)
+ do_chmod(fbuf, mode | S_IWUSR);
+
+ if (S_ISDIR(mode) && !(flags & DEL_DIR_IS_EMPTY)) {
+ int save_uid_ndx = uid_ndx;
+ /* This only happens on the first call to delete_item() since
+ * delete_dir_contents() always calls us w/DEL_DIR_IS_EMPTY. */
+ if (!uid_ndx)
+ uid_ndx = ++file_extra_cnt;
+ ignore_perishable = 1;
+ /* If DEL_RECURSE is not set, this just reports emptiness. */
+ ret = delete_dir_contents(fbuf, flags);
+ ignore_perishable = 0;
+ if (!save_uid_ndx) {
+ --file_extra_cnt;
+ uid_ndx = 0;
+ }
+ if (ret == DR_NOT_EMPTY || ret == DR_AT_LIMIT)
+ goto check_ret;
+ /* OK: try to delete the directory. */
+ }
+
+ if (!(flags & DEL_MAKE_ROOM) && max_delete >= 0 && ++deletion_count > max_delete)
+ return DR_AT_LIMIT;
+
+ if (S_ISDIR(mode)) {
+ what = "rmdir";
+ ok = do_rmdir(fbuf) == 0;
+ } else if (make_backups > 0 && (backup_dir || !is_backup_file(fbuf))) {
+ what = "make_backup";
+ ok = make_backup(fbuf);
+ } else {
+ what = "unlink";
+ ok = robust_unlink(fbuf) == 0;
+ }
+
+ if (ok) {
+ if (!(flags & DEL_MAKE_ROOM))
+ log_delete(fbuf, mode);
+ ret = DR_SUCCESS;
+ } else {
+ if (S_ISDIR(mode) && errno == ENOTEMPTY) {
+ rprintf(FINFO, "cannot delete non-empty directory: %s\n",
+ fbuf);
+ ret = DR_NOT_EMPTY;
+ } else if (errno != ENOENT) {
+ rsyserr(FERROR, errno, "delete_file: %s(%s) failed",
+ what, fbuf);
+ ret = DR_FAILURE;
+ } else {
+ deletion_count--;
+ ret = DR_SUCCESS;
+ }
+ }
+
+ check_ret:
+ if (ret != DR_SUCCESS && flags & DEL_MAKE_ROOM) {
+ const char *desc;
+ switch (flags & DEL_MAKE_ROOM) {
+ case DEL_FOR_FILE: desc = "regular file"; break;
+ case DEL_FOR_DIR: desc = "directory"; break;
+ case DEL_FOR_SYMLINK: desc = "symlink"; break;
+ case DEL_FOR_DEVICE: desc = "device file"; break;
+ case DEL_FOR_SPECIAL: desc = "special file"; break;
+ default: exit_cleanup(RERR_UNSUPPORTED); /* IMPOSSIBLE */
+ }
+ rprintf(FERROR_XFER, "could not make way for new %s: %s\n",
+ desc, fbuf);
+ }
+ return ret;
+}