Description: Add check for NULL pointer Author: Jörg Frings-Fürst Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=700253 Forwarded: Yes, to ML Reviewed-by: Last-Update: 2014-09-10 --- This patch header follows DEP-3: http://dep.debian.net/deps/dep3/ Index: trunk/spectro/dispwin.c =================================================================== --- trunk.orig/spectro/dispwin.c 2014-09-10 16:05:36.633175564 +0200 +++ trunk/spectro/dispwin.c 2014-09-10 16:06:16.781967935 +0200 @@ -5493,6 +5493,7 @@ /* Display number */ else if (argv[fa][1] == 'd') { + if(na == NULL) usage("-d parameter missing"); if (strncmp(na,"web",3) == 0 || strncmp(na,"WEB",3) == 0) { webdisp = 8080;