From patchwork Fri Mar 11 10:03:52 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= X-Patchwork-Id: 8563961 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 01DD9C0553 for ; Fri, 11 Mar 2016 10:04:51 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5A20E2022A for ; Fri, 11 Mar 2016 10:04:50 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BCCA220221 for ; Fri, 11 Mar 2016 10:04:44 +0000 (UTC) Received: from localhost ([::1]:53784 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aeJw3-0003eB-TS for patchwork-qemu-devel@patchwork.kernel.org; Fri, 11 Mar 2016 05:04:43 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51987) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aeJvo-0003dn-P1 for qemu-devel@nongnu.org; Fri, 11 Mar 2016 05:04:29 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aeJvk-0001fF-H8 for qemu-devel@nongnu.org; Fri, 11 Mar 2016 05:04:28 -0500 Received: from mx1.redhat.com ([209.132.183.28]:60419) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aeJvk-0001fA-9z for qemu-devel@nongnu.org; Fri, 11 Mar 2016 05:04:24 -0500 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id DC6407F0A8; Fri, 11 Mar 2016 10:04:23 +0000 (UTC) Received: from t530wlan.home.berrange.com.com (vpn1-6-25.ams2.redhat.com [10.36.6.25]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u2BA4Kqf022231; Fri, 11 Mar 2016 05:04:23 -0500 From: "Daniel P. Berrange" To: qemu-devel@nongnu.org Date: Fri, 11 Mar 2016 10:03:52 +0000 Message-Id: <1457690648-19267-3-git-send-email-berrange@redhat.com> In-Reply-To: <1457690648-19267-1-git-send-email-berrange@redhat.com> References: <1457690648-19267-1-git-send-email-berrange@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: Peter Maydell Subject: [Qemu-devel] [PULL v1 02/18] io: use bind() to check for IPv4/6 availability X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Currently the test-io-channel-socket.c test uses getifaddrs to see if an IPv4/6 address is present on any host NIC, as a way to determine if IPv4/6 sockets can be used. This is problematic because getifaddrs is not available on Win32. Rather than testing indirectly via getifaddrs, just create a socket and try to bind() to the loopback address instead. Reviewed-by: Paolo Bonzini Signed-off-by: Daniel P. Berrange --- tests/test-io-channel-socket.c | 79 +++++++++++++++++------------------------- 1 file changed, 31 insertions(+), 48 deletions(-) diff --git a/tests/test-io-channel-socket.c b/tests/test-io-channel-socket.c index 8a34056..6098fee 100644 --- a/tests/test-io-channel-socket.c +++ b/tests/test-io-channel-socket.c @@ -22,66 +22,49 @@ #include "io/channel-socket.h" #include "io/channel-util.h" #include "io-channel-helpers.h" -#ifdef HAVE_IFADDRS_H -#include -#endif -static int check_protocol_support(bool *has_ipv4, bool *has_ipv6) +static int check_bind(struct sockaddr *sa, socklen_t salen, bool *has_proto) { -#ifdef HAVE_IFADDRS_H - struct ifaddrs *ifaddr = NULL, *ifa; - struct addrinfo hints = { 0 }; - struct addrinfo *ai = NULL; - int gaierr; - - *has_ipv4 = *has_ipv6 = false; + int fd; - if (getifaddrs(&ifaddr) < 0) { - g_printerr("Failed to lookup interface addresses: %s\n", - strerror(errno)); + fd = socket(sa->sa_family, SOCK_STREAM, 0); + if (fd < 0) { return -1; } - for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) { - if (!ifa->ifa_addr) { - continue; - } - - if (ifa->ifa_addr->sa_family == AF_INET) { - *has_ipv4 = true; - } - if (ifa->ifa_addr->sa_family == AF_INET6) { - *has_ipv6 = true; + if (bind(fd, sa, salen) < 0) { + close(fd); + if (errno == EADDRNOTAVAIL) { + *has_proto = false; + return 0; } + return -1; } - freeifaddrs(ifaddr); - - hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG; - hints.ai_family = AF_INET6; - hints.ai_socktype = SOCK_STREAM; - - gaierr = getaddrinfo("::1", NULL, &hints, &ai); - if (gaierr != 0) { - if (gaierr == EAI_ADDRFAMILY || - gaierr == EAI_FAMILY || - gaierr == EAI_NONAME) { - *has_ipv6 = false; - } else { - g_printerr("Failed to resolve ::1 address: %s\n", - gai_strerror(gaierr)); - return -1; - } - } + close(fd); + *has_proto = true; + return 0; +} - freeaddrinfo(ai); +static int check_protocol_support(bool *has_ipv4, bool *has_ipv6) +{ + struct sockaddr_in sin = { + .sin_family = AF_INET, + .sin_addr = { .s_addr = htonl(INADDR_LOOPBACK) }, + }; + struct sockaddr_in6 sin6 = { + .sin6_family = AF_INET6, + .sin6_addr = IN6ADDR_LOOPBACK_INIT, + }; - return 0; -#else - *has_ipv4 = *has_ipv6 = false; + if (check_bind((struct sockaddr *)&sin, sizeof(sin), has_ipv4) < 0) { + return -1; + } + if (check_bind((struct sockaddr *)&sin6, sizeof(sin6), has_ipv6) < 0) { + return -1; + } - return -1; -#endif + return 0; }