[src/trunk]: src/tests/net/mcast Save errno for errx

[ozaki-r <ozaki-r%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/466173aacc22
branches:  trunk
changeset: 338299:466173aacc22
user:      ozaki-r <ozaki-r%NetBSD.org@localhost>
date:      Sun May 17 15:48:57 2015 +0000

description:
Save errno for errx

diffstat:

 tests/net/mcast/t_mcast.c |  10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diffs (51 lines):

diff -r ba2c8888649c -r 466173aacc22 tests/net/mcast/t_mcast.c
--- a/tests/net/mcast/t_mcast.c Sun May 17 14:23:15 2015 +0000
+++ b/tests/net/mcast/t_mcast.c Sun May 17 15:48:57 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: t_mcast.c,v 1.11 2015/02/27 13:15:49 martin Exp $      */
+/*     $NetBSD: t_mcast.c,v 1.12 2015/05/17 15:48:57 ozaki-r Exp $     */
 
 /*-
  * Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 #include <sys/cdefs.h>
 #ifdef __RCSID
-__RCSID("$NetBSD: t_mcast.c,v 1.11 2015/02/27 13:15:49 martin Exp $");
+__RCSID("$NetBSD: t_mcast.c,v 1.12 2015/05/17 15:48:57 ozaki-r Exp $");
 #else
 extern const char *__progname;
 #define getprogname() __progname
@@ -186,7 +186,7 @@
     int (*f)(int, const struct sockaddr *, socklen_t), socklen_t *slen,
     bool bug)
 {
-       int e, s;
+       int e, s, lasterrno = 0;
        struct addrinfo hints, *ai0, *ai;
        const char *cause = "?";
 
@@ -202,6 +202,7 @@
        for (ai = ai0; ai; ai = ai->ai_next) {
                s = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
                if (s == -1) {
+                       lasterrno = errno;
                        cause = "socket";
                        continue;
                }
@@ -220,13 +221,14 @@
                *slen = ai->ai_addrlen;
                break;
 out:
+               lasterrno = errno;
                close(s);
                s = -1;
                continue;
        }
        freeaddrinfo(ai0);
        if (s == -1)
-               ERRX(1, "%s (%s)", cause, strerror(errno));
+               ERRX(1, "%s (%s)", cause, strerror(lasterrno));
        return s;
 }