conf-parser: introduce CONFIG_PARSE_STRING_ASCII flag

When the flag is set, the string which contains non-ascii characters will be refused.
2022-03-10 14:43:48 +09:00
parent 3f87eaa5d8
commit e289ce7f67
2 changed files with 12 additions and 0 deletions
@@ -894,6 +894,15 @@ int config_parse_string(
                return 0;
        }

+        if (FLAGS_SET(ltype, CONFIG_PARSE_STRING_ASCII) && !ascii_is_valid(rvalue)) {
+                _cleanup_free_ char *escaped = NULL;
+
+                escaped = cescape(rvalue);
+                log_syntax(unit, LOG_WARNING, filename, line, 0,
+                           "Specified string contains invalid ASCII characters, ignoring: %s", strna(escaped));
+                return 0;
+        }
+
        return free_and_strdup_warn(s, empty_to_null(rvalue));
 }