From owner-svn-src-all@freebsd.org Mon Dec 28 03:26:17 2015 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id F15B3A4DA42; Mon, 28 Dec 2015 03:26:17 +0000 (UTC) (envelope-from ume@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id C0CBF1F67; Mon, 28 Dec 2015 03:26:17 +0000 (UTC) (envelope-from ume@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id tBS3QG7I022033; Mon, 28 Dec 2015 03:26:16 GMT (envelope-from ume@FreeBSD.org) Received: (from ume@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id tBS3QGms022032; Mon, 28 Dec 2015 03:26:16 GMT (envelope-from ume@FreeBSD.org) Message-Id: <201512280326.tBS3QGms022032@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: ume set sender to ume@FreeBSD.org using -f From: Hajimu UMEMOTO Date: Mon, 28 Dec 2015 03:26:16 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r292824 - stable/10/lib/libc/net X-SVN-Group: stable-10 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Dec 2015 03:26:18 -0000 Author: ume Date: Mon Dec 28 03:26:16 2015 New Revision: 292824 URL: https://svnweb.freebsd.org/changeset/base/292824 Log: MFC r292539: If we end up following a CNAME chain that does not find any data return that instead of internal error. PR: 156684 Modified: stable/10/lib/libc/net/getaddrinfo.c Directory Properties: stable/10/ (props changed) Modified: stable/10/lib/libc/net/getaddrinfo.c ============================================================================== --- stable/10/lib/libc/net/getaddrinfo.c Mon Dec 28 02:43:12 2015 (r292823) +++ stable/10/lib/libc/net/getaddrinfo.c Mon Dec 28 03:26:16 2015 (r292824) @@ -2166,7 +2166,11 @@ getanswer(const querybuf *answer, int an return sentinel.ai_next; } - RES_SET_H_ERRNO(res, NO_RECOVERY); + /* + * We could have walked a CNAME chain, but the ultimate target + * may not have what we looked for. + */ + RES_SET_H_ERRNO(res, ntohs(hp->ancount) > 0 ? NO_DATA : NO_RECOVERY); return NULL; } @@ -2343,6 +2347,7 @@ _dns_getaddrinfo(void *rv, void *cb_data if (sentinel.ai_next == NULL) switch (res->res_h_errno) { case HOST_NOT_FOUND: + case NO_DATA: return NS_NOTFOUND; case TRY_AGAIN: return NS_TRYAGAIN;