From 4973c1e41c09d5110cceaa08006f1abd1109ce67 Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 23 Dec 2008 13:59:10 +0000
Subject: * process.c (rb_fork): don't propagete an error message if error  
 buffer not given.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@20951 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 process.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'process.c')

diff --git a/process.c b/process.c
index 51683de2f..cfc2e8d5f 100644
--- a/process.c
+++ b/process.c
@@ -2477,8 +2477,10 @@ rb_fork(int *status, int (*chfunc)(void*, char *, size_t), void *charg, VALUE fd
 #ifdef FD_CLOEXEC
 	    err = errno;
 	    write(ep[1], &err, sizeof(err));
-            errmsg[errmsg_buflen-1] = '\0';
-            write(ep[1], errmsg, strlen(errmsg));
+            if (errmsg && 0 < errmsg_buflen) {
+                errmsg[errmsg_buflen-1] = '\0';
+                write(ep[1], errmsg, strlen(errmsg));
+            }
 #endif
 #if EXIT_SUCCESS == 127
 	    _exit(EXIT_FAILURE);
-- 
cgit