From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Wed, 13 Jul 2022 04:02:09 +0000 (-0700)
Subject: pathplan make_polyline: fix unchecked allocation failure
X-Git-Tag: 5.0.1~35^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5fa854fdeb880fa70c19e2bedce754aab245be37;p=graphviz

pathplan make_polyline: fix unchecked allocation failure
---

diff --git a/lib/pathplan/util.c b/lib/pathplan/util.c
index 19b563146..c70db2116 100644
--- a/lib/pathplan/util.c
+++ b/lib/pathplan/util.c
@@ -10,11 +10,10 @@
 
 
 #include <assert.h>
+#include <cgraph/alloc.h>
 #include <stdlib.h>
 #include <pathplan/pathutil.h>
 
-#define ALLOC(size,ptr,type) realloc(ptr,(size)*sizeof(type))
-
 void freePath(Ppolyline_t* p)
 {
     free(p->ps);
@@ -63,7 +62,7 @@ make_polyline(Ppolyline_t line, Ppolyline_t* sline)
     int npts = 4 + 3*(line.pn-2);
 
     if (npts > isz) {
-	ispline = ALLOC((size_t)npts, ispline, Ppoint_t);
+	ispline = gv_recalloc(ispline, (size_t)isz, (size_t)npts, sizeof(Ppoint_t));
 	isz = npts;
     }