From 6d04a5e00de92a0e2da33c1829c1766c1af9aad9 Mon Sep 17 00:00:00 2001
From: obrien <obrien@FreeBSD.org>
Date: Thu, 4 Apr 2002 22:15:13 +0000
Subject: Fix signal race. Use strlen() rather than magic number. Use
 _PATH_TMP.

Obtained from:	OpenBSD rev 1.13 (sig race) & rev 1.9 (strlen)
---
 usr.bin/yacc/main.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

(limited to 'usr.bin')

diff --git a/usr.bin/yacc/main.c b/usr.bin/yacc/main.c
index 0a9983c..0e7bb3f 100644
--- a/usr.bin/yacc/main.c
+++ b/usr.bin/yacc/main.c
@@ -45,6 +45,7 @@ static char sccsid[] = "@(#)main.c	5.5 (Berkeley) 5/24/93";
 __FBSDID("$FreeBSD$");
 #endif
 
+#include <paths.h>
 #include <signal.h>
 #include <stdlib.h>
 #include <string.h>
@@ -113,14 +114,16 @@ static void open_files(void);
 static void set_signals(void);
 static void usage(void);
 
+volatile sig_atomic_t sigdie;
 
-void
+__dead2 void
 done(k)
 int k;
 {
     if (action_file) { fclose(action_file); unlink(action_file_name); }
     if (text_file) { fclose(text_file); unlink(text_file_name); }
     if (union_file) { fclose(union_file); unlink(union_file_name); }
+    if (sigdie) { _exit(k); }
     exit(k);
 }
 
@@ -129,6 +132,7 @@ static void
 onintr(signo)
 	int signo __unused;
 {
+    sigdie = 1;
     done(1);
 }
 
@@ -297,11 +301,11 @@ create_file_names()
     int i, len;
     const char *tmpdir;
 
-    tmpdir = getenv("TMPDIR");
-    if (tmpdir == 0) tmpdir = "/tmp";
+    if (!(tmpdir = getenv("TMPDIR")))
+	tmpdir = _PATH_TMP;
 
     len = strlen(tmpdir);
-    i = len + 17;
+    i = len + strlen(temp_form) + 1;
     if (len && tmpdir[len-1] != '/')
 	++i;
 
-- 
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