From 29b4247ca1fc4a70ca99b1f99fbc552f78780ff0 Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 13 Jul 2010 04:15:30 +0000
Subject: * missing/close.c: keep original errno.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28623 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 missing/close.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'missing/close.c')

diff --git a/missing/close.c b/missing/close.c
index 7e743eb204..d87f9e3164 100644
--- a/missing/close.c
+++ b/missing/close.c
@@ -8,12 +8,15 @@ int
 ruby_getpeername(int s, struct sockaddr * name,
          socklen_t * namelen)
 {
+    int err = errno;
     errno = 0;
     s = getpeername(s, name, namelen);
     if (errno == ECONNRESET) {
 	errno = 0;
 	s = 0;
     }
+    else if (errno == 0)
+	errno = err;
     return s;
 }
 
@@ -21,35 +24,44 @@ int
 ruby_getsockname(int s, struct sockaddr * name,
          socklen_t * namelen)
 {
+    int err = errno;
     errno = 0;
     s = getsockname(s, name, namelen);
     if (errno == ECONNRESET) {
 	errno = 0;
 	s = 0;
     }
+    else if (errno == 0)
+	errno = err;
     return s;
 }
 
 int
 ruby_shutdown(int s, int how)
 {
+    int err = errno;
     errno = 0;
     s = shutdown(s, how);
     if (errno == ECONNRESET) {
 	errno = 0;
 	s = 0;
     }
+    else if (errno == 0)
+	errno = err;
     return s;
 }
 
 int
 ruby_close(int s)
 {
+    int err = errno;
     errno = 0;
     s = close(s);
     if (errno == ECONNRESET) {
 	errno = 0;
 	s = 0;
     }
+    else if (errno == 0)
+	errno = err;
     return s;
 }
-- 
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