X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=chiark-tcl.git;a=blobdiff_plain;f=maskmap%2Faddrmap.c;h=0f72eb4899ad28edd0a6995c626571cdf4e22eda;hp=437b41ae1c8c12050bb0fea07b75e2eae3d62dd7;hb=ca8b96bf81245f21fe3906c71dc2994bfc5e516f;hpb=5dca360f2da544c9b6baf9d18ad8cd0b0e073e60

diff --git a/maskmap/addrmap.c b/maskmap/addrmap.c
index 437b41a..0f72eb4 100644
--- a/maskmap/addrmap.c
+++ b/maskmap/addrmap.c
@@ -1,6 +1,6 @@
 /*
  * maskmap - Tcl extension for address mask map data structures
- * Copyright 2006 Ian Jackson
+ * Copyright 2006-2012 Ian Jackson
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -93,6 +93,7 @@ static void am_reallocentries(AddrMap_Value *am, int len) {
   assert(len >= am->space);
   if (!len) return;
 
+  assert(len < INT_MAX/sizeof(*newentries));
   newentries= TREALLOC(am->entries, sizeof(*newentries)*len);
   assert(newentries);
   
@@ -236,6 +237,7 @@ static int addrmap_t_sfa(Tcl_Interp *ip, Tcl_Obj *o) {
   }
 
   am->byl= bitlen/8;
+  assert(inlen < INT_MAX/2);
   am_reallocentries(am, (inlen-1)*2+1);
 
   ame= ame_sfa_alloc(am);