fix multiple bugs with the limit extension

[xonotic/netradiant.git] / tools / quake3 / q3map2 / writebsp.c

diff --git a/tools/quake3/q3map2/writebsp.c b/tools/quake3/q3map2/writebsp.c
index 70a382dd4d0b1f491062efdf3487ad5fb1cbe85b..96e8ce29340b048a328a76c946f1eb8868a3e508 100644 (file)
--- a/tools/quake3/q3map2/writebsp.c
+++ b/tools/quake3/q3map2/writebsp.c
@@ -199,7 +199,7 @@ recursively emit the bsp nodes
 int EmitDrawNode_r( node_t *node )
 {
        bspNode_t       *n;
-       int                     i;
+       int                     i, n0;
        
        
        /* check for leafnode */
@@ -211,7 +211,8 @@ int EmitDrawNode_r( node_t *node )
        
        /* emit a node */
        AUTOEXPAND_BY_REALLOC_BSP(Nodes, 1024);
-       n = &bspNodes[ numBSPNodes ];
+       n0 = numBSPNodes;
+       n = &bspNodes[ n0 ];
        numBSPNodes++;
        
        VectorCopy (node->mins, n->mins);
@@ -235,6 +236,8 @@ int EmitDrawNode_r( node_t *node )
                {
                        n->children[i] = numBSPNodes;   
                        EmitDrawNode_r (node->children[i]);
+                       // n may have become invalid here, so...
+                       n = &bspNodes[ n0 ];
                }
        }