[brlcad-commits] SF.net SVN: brlcad:[48333] brlcad/trunk/src/liboptical/photonmap.c

[<eri...@us...>]

Revision: 48333
          http://brlcad.svn.sourceforge.net/brlcad/?rev=48333&view=rev
Author:   erikgreenwald
Date:     2012-01-10 19:52:54 +0000 (Tue, 10 Jan 2012)
Log Message:
-----------
verify irradiance cache info on read. Cov1483

Modified Paths:
--------------
    brlcad/trunk/src/liboptical/photonmap.c

Modified: brlcad/trunk/src/liboptical/photonmap.c
===================================================================
--- brlcad/trunk/src/liboptical/photonmap.c	2012-01-10 19:49:46 UTC (rev 48332)
+++ brlcad/trunk/src/liboptical/photonmap.c	2012-01-10 19:52:54 UTC (rev 48333)
@@ -1168,7 +1168,7 @@
 {
     size_t ret;
     FILE *FH;
-    int I1, i;
+    int I1 = 0, i;
     short S1;
     char C1;
 
@@ -1214,7 +1214,7 @@
 	    bu_log("Error reading irradiance cache file (C1)\n");
 
 	ret = fread(&I1, sizeof(int), 1, FH);
-	if (ret != 1)
+	if (ret != 1 || I1 < 0)
 	    bu_log("Error reading irradiance cache file (l1)\n");
 
 	Initialize(PM_CAUSTIC, I1);

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