nano-12/src/files.c

1213     if (backup_dir == NULL)
1216     full_backup_dir = get_full_path(backup_dir);
1219      * inaccessible, unset backup_dir. */
1223 	free(backup_dir);
1224 	backup_dir = NULL;
1226 	free(backup_dir);
1227 	backup_dir = full_backup_dir;
1381 	/* If backup_dir is set, we set backupname to
1382 	 * backup_dir/backupname~[.number], where backupname is the
1385 	 * backed up in backup_dir/!home!foo!file~[.number]. */
1386 	if (backup_dir != NULL) {
1406 	    backupname = charalloc(strlen(backup_dir) +
1408 	    sprintf(backupname, "%s%s", backup_dir, backuptemp);