fix segfault in meta-data parsing of zip archives

diff --git a/ext/phar/phar.c b/ext/phar/phar.c
index 0c74bddb5464a1c46dc39fbef7a0329ff0632dab..8cbb1f8ff4744efe7cbbdb6919f26b6c70333c57 100644 (file)
--- a/ext/phar/phar.c
+++ b/ext/phar/phar.c
@@ -521,7 +521,9 @@ int phar_parse_metadata(char **buffer, zval **metadata, int zip_metadata_len TSR
        } else {
                *metadata = NULL;
        }
-       *buffer += buf_len;
+       if (!zip_metadata_len) {
+               *buffer += buf_len;
+       }
        return SUCCESS;
 }
 /* }}}*/