# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1425627913 -7200
# Node ID 30c2dbf05841ec44e571c37f1f6061160f3b46ce
# Parent  66c79bae87045d9869262fd638fbd7d96f6c5e74
Add a sanity check for JSSMOD header values.

diff -r 66c79bae8704 -r 30c2dbf05841 minijss/jloadjss.c
--- a/minijss/jloadjss.c	Thu Mar 05 23:14:15 2015 +0200
+++ b/minijss/jloadjss.c	Fri Mar 06 09:45:13 2015 +0200
@@ -327,6 +327,18 @@
     if (probe)
         return DMERR_OK;
 
+    // Check some of the things for sanity
+    if (jssH.nchannels > jsetMaxChannels ||
+        jssH.nchannels == 0 ||
+        jssH.norders > jsetMaxOrders ||
+        jssH.npatterns > jsetMaxPatterns ||
+        jssH.nextInstruments > jsetMaxInstruments ||
+        jssH.ninstruments > jsetMaxInstruments)
+    {
+        JSSERROR(DMERR_INVALID_DATA, DMERR_INVALID_DATA,
+        "Invalid values in JSSMOD header.\n");
+    }
+
     // Allocate the module
     module = jssAllocateModule();
     if (module == NULL)