From e617f425032bccafe36657dcf615a6abaf026fd3 Mon Sep 17 00:00:00 2001
From: George Koehler <xkernigh@netscape.net>
Date: Sun, 13 Nov 2016 11:55:09 -0500
Subject: [PATCH] Don't print a string after possibly freeing it.

new= newvar(name) takes ownership of the string and might free its
memory.  Don't print name.  Do print new->v_name.

Also #include <string.h> for strcmp().
---
 util/ack/svars.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/util/ack/svars.c b/util/ack/svars.c
index 38e8f95b9..e540e5d02 100644
--- a/util/ack/svars.c
+++ b/util/ack/svars.c
@@ -4,6 +4,7 @@
  *
  */
 
+#include <string.h>
 #include "ack.h"
 
 #ifndef NORCSID
@@ -81,7 +82,7 @@ void setsvar(char *name, char *str) {
 
 	new= newvar(name);
 #ifdef DEBUG
-	if ( debug>=2 ) vprint("%s=%s\n", name, str) ;
+	if ( debug>=2 ) vprint("%s=%s\n", new->v_name, str) ;
 #endif
 	new->v_type= string;
 	new->v_value.v_string= str;
@@ -92,7 +93,7 @@ void setpvar(char *name, char *(*rout)(void)) {
 
 	new= newvar(name);
 #ifdef DEBUG
-	if ( debug>=2 ) vprint("%s= (*%o)()\n",name,rout) ;
+	if ( debug>=2 ) vprint("%s= (*%o)()\n", new->v_name, rout) ;
 #endif
 	new->v_type= routine;
 	new->v_value.v_routine= rout;