Complain if the --suffix value contains slashes (which is all too easy

to accidentally have happen if you try to specify "~" with --backup-dir).

diff --git a/options.c b/options.c
index 945dddd..a4111ca 100644 (file)
--- a/options.c
+++ b/options.c
@@ -633,6 +633,11 @@ int parse_arguments(int *argc, const char ***argv, int frommain)
        if (!backup_suffix)
                backup_suffix = backup_dir? "" : BACKUP_SUFFIX;
        backup_suffix_len = strlen(backup_suffix);
+       if (strchr(backup_suffix, '/') != NULL) {
+               rprintf(FERROR, "--suffix cannot contain slashes: %s\n",
+                       backup_suffix);
+               exit_cleanup(RERR_SYNTAX);
+       }
        if (backup_dir)
                backup_dir_len = strlen(backup_dir);
        else if (!backup_suffix_len) {