From 7f3c7835831c9308ee3728883db0f77ab4dbf7df Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Thu, 31 Jan 2013 15:27:13 +0100
Subject: [PATCH] unix: don't clobber errno in signal handler

---
 src/unix/signal.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/unix/signal.c b/src/unix/signal.c
index d3ab6035..f7fd2e5e 100644
--- a/src/unix/signal.c
+++ b/src/unix/signal.c
@@ -136,7 +136,9 @@ inline static uv_signal_t* uv__signal_first_handle(int signum) {
 static void uv__signal_handler(int signum) {
   uv__signal_msg_t msg;
   uv_signal_t* handle;
+  int saved_errno;
 
+  saved_errno = errno;
   memset(&msg, 0, sizeof msg);
 
   uv__signal_lock();
@@ -165,6 +167,7 @@ static void uv__signal_handler(int signum) {
   }
 
   uv__signal_unlock();
+  errno = saved_errno;
 }