Do not clobber errno when calling close(2) in example code.

From form@ via mpech@

1 files changed, 6 insertions, 2 deletions

diff --git a/src/lib/libc/net/getaddrinfo.3 b/src/lib/libc/net/getaddrinfo.3
index b7494be811..12a0d8ce12 100644
--- a/src/lib/libc/net/getaddrinfo.3
+++ b/src/lib/libc/net/getaddrinfo.3
@@ -1,4 +1,4 @@
-.\"     $OpenBSD: getaddrinfo.3,v 1.42 2005/11/13 13:22:57 otto Exp $
+.\"     $OpenBSD: getaddrinfo.3,v 1.43 2005/11/15 19:35:31 otto Exp $
 .\"     $KAME: getaddrinfo.3,v 1.36 2005/01/05 03:23:05 itojun Exp $
 .\"
 .\" Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
@@ -304,7 +304,7 @@ returns addresses that are not IPv4/v6.
 .Bd -literal -offset indent
 struct addrinfo hints, *res, *res0;
 int error;
-int save_errno = errno;
+int save_errno;
 int s;
 const char *cause = NULL;
 
@@ -327,6 +327,7 @@ for (res = res0; res; res = res->ai_next) {
 
         if (connect(s, res->ai_addr, res->ai_addrlen) < 0) {
                 cause = "connect";
+                save_errno = errno;
                 close(s);
                 errno = save_errno;
                 s = -1;
@@ -348,6 +349,7 @@ for all the address families available.
 .Bd -literal -offset indent
 struct addrinfo hints, *res, *res0;
 int error;
+int save_errno;
 int s[MAXSOCK];
 int nsock;
 const char *cause = NULL;
@@ -372,7 +374,9 @@ for (res = res0; res && nsock < MAXSOCK; res = res->ai_next) {
 
         if (bind(s[nsock], res->ai_addr, res->ai_addrlen) < 0) {
                 cause = "bind";
+                save_errno = errno;
                 close(s[nsock]);
+                errno = save_errno;
                 continue;
         }
         (void) listen(s[nsock], 5);