X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=src%2Frrd_xport.c;fp=src%2Frrd_xport.c;h=b2afd1cb25fa0db3c7218e3401d249de6c8b376c;hp=4457b60f9478dbe13159137b3ec7b50ddd3baf0d;hb=79888cec49c5530b1ff095d963f818848605affb;hpb=48b7b284e76ed01af3bc0b87dd15fb860c017464

diff --git a/src/rrd_xport.c b/src/rrd_xport.c
index 4457b60..b2afd1c 100644
--- a/src/rrd_xport.c
+++ b/src/rrd_xport.c
@@ -382,6 +382,18 @@ int rrd_graph_xport(image_desc_t *im) {
   rrd_value_t *data=NULL;
   /* initialize buffer */
   stringbuffer_t buffer={0,0,NULL,NULL}; 
+
+  /* check if we have a supported ggraph format */
+  switch (im->graph_type) {
+    /* allow the following to pass */
+  case GTYPE_TIME:
+  case GTYPE_XY:
+    break;
+  default:
+    rrd_set_error("Not supported graph type");
+    return -1;
+  }
+
   /* if we write a file, then open it */
   if (strlen(im->graphfile)) {
     buffer.file=fopen(im->graphfile,"w");