From 5cea80f170a3b44836d65120208e34402192c884 Mon Sep 17 00:00:00 2001
From: Bruce Evans <bde@FreeBSD.org>
Date: Thu, 16 Feb 1995 11:52:11 +0000
Subject: [PATCH] Always return null-terminated identifiers from yylex().

---
 usr.sbin/config/lang.l | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/usr.sbin/config/lang.l b/usr.sbin/config/lang.l
index be6a24cefac9..d4052f394f13 100644
--- a/usr.sbin/config/lang.l
+++ b/usr.sbin/config/lang.l
@@ -35,6 +35,7 @@
  */
 
 #include <ctype.h>
+#include <string.h>
 #include "y.tab.h"
 #include "config.h"
 
@@ -117,7 +118,7 @@ WORD	[A-Za-z_][-A-Za-z_]*
 
 			if ((i = kw_lookup(yytext)) == -1)
 			{
-				yylval.str = yytext;
+				yylval.str = strdup(yytext);
 				tprintf("id(%s) ", yytext);
 				return ID;
 			}
@@ -126,7 +127,7 @@ WORD	[A-Za-z_][-A-Za-z_]*
 		}
 \"[^"]+\"	{
 			yytext[strlen(yytext)-1] = '\0';
-			yylval.str = yytext + 1;
+			yylval.str = strdup(yytext + 1);
 			return ID;
 		}
 0[0-7]*		{