MFH: Prevent a crash when expand_filepath() fails.

diff --git a/main/streams.c b/main/streams.c
index c3154f338aa56f72c12041ba3c9d069f4e85ca17..8c32855e04362bf3d8be13b75f985d0c660c30cd 100755 (executable)
--- a/main/streams.c
+++ b/main/streams.c
@@ -1943,7 +1943,9 @@ PHPAPI php_stream *_php_stream_fopen(const char *filename, const char *mode, cha
                return NULL;
        }
 
-       realpath = expand_filepath(filename, NULL TSRMLS_CC);
+       if ((realpath = expand_filepath(filename, NULL TSRMLS_CC)) == NULL) {
+               return NULL;
+       }
 
        if (persistent) {
                spprintf(&persistent_id, 0, "streams_stdio_%d_%s", open_flags, realpath);