From 1531c601ab2f2a4d54d2425d97bfc4665c04a67c Mon Sep 17 00:00:00 2001
From: Henning Brauer <henning@cvs.openbsd.org>
Date: Fri, 12 Mar 2004 13:39:51 +0000
Subject: fix memory leak in the code yacc generates, ok millert deraadt

---
 usr.bin/yacc/skeleton.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/usr.bin/yacc/skeleton.c b/usr.bin/yacc/skeleton.c
index 9329ccf9e93..a6e17d47a22 100644
--- a/usr.bin/yacc/skeleton.c
+++ b/usr.bin/yacc/skeleton.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: skeleton.c,v 1.22 2003/11/25 20:00:15 espie Exp $	*/
+/*	$OpenBSD: skeleton.c,v 1.23 2004/03/12 13:39:50 henning Exp $	*/
 /*	$NetBSD: skeleton.c,v 1.10 1996/03/25 00:36:18 mrg Exp $	*/
 
 /*
@@ -63,7 +63,7 @@ char *banner[] =
     "#if __GNUC__ >= 2",
     "  __attribute__ ((unused))",
     "#endif /* __GNUC__ >= 2 */",
-    "  = \"$OpenBSD: skeleton.c,v 1.22 2003/11/25 20:00:15 espie Exp $\";",
+    "  = \"$OpenBSD: skeleton.c,v 1.23 2004/03/12 13:39:50 henning Exp $\";",
     "#endif",
     "#include <stdlib.h>",
     "#define YYBYACC 1",
@@ -397,8 +397,22 @@ char *trailer[] =
     "yyoverflow:",
     "    yyerror(\"yacc stack overflow\");",
     "yyabort:",
+    "    if (yyss)",
+    "            free(yyss);",
+    "    if (yyvs)",
+    "            free(yyvs);",
+    "    yyss = yyssp = NULL;",
+    "    yyvs = yyvsp = NULL;",
+    "    yystacksize = 0;",
     "    return (1);",
     "yyaccept:",
+    "    if (yyss)",
+    "            free(yyss);",
+    "    if (yyvs)",
+    "            free(yyvs);",
+    "    yyss = yyssp = NULL;",
+    "    yyvs = yyvsp = NULL;",
+    "    yystacksize = 0;",
     "    return (0);",
     "}",
     0
-- 
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