From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Tue, 17 May 2022 14:25:44 +0000 (-0700)
Subject: tred: replace a 'malloc' with cgraph alloc wrapper
X-Git-Tag: 4.0.0~9^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8dd2599f6b9b151473c9aee77c0fe473d617545b;p=graphviz

tred: replace a 'malloc' with cgraph alloc wrapper

This addresses a case where allocation failure went unchecked.
---

diff --git a/cmd/tools/tred.c b/cmd/tools/tred.c
index 207843395..a860f2ee1 100644
--- a/cmd/tools/tred.c
+++ b/cmd/tools/tred.c
@@ -22,6 +22,7 @@
  * transitive reduction on stdout
  */
 
+#include <cgraph/alloc.h>
 #include <cgraph/cgraph.h>
 #include <cgraph/stack.h>
 #include <cgraph/exit.h>
@@ -232,7 +233,7 @@ static void process(Agraph_t *g, gv_stack_t *sp) {
     size_t infosize;
 
     infosize = (agnnodes(g)+1)*sizeof(nodeinfo_t);
-    ninfo = malloc(infosize);
+    ninfo = gv_alloc(infosize);
 
     if (Verbose)
 	fprintf(stderr, "Processing graph %s\n", agnameof(g));