From patchwork Mon May 1 13:06:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Samuel Thibault X-Patchwork-Id: 68593 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 207763858417 for ; Mon, 1 May 2023 13:06:23 +0000 (GMT) X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from sonata.ens-lyon.org (sonata.ens-lyon.org [140.77.166.138]) by sourceware.org (Postfix) with ESMTPS id 987FC3858291 for ; Mon, 1 May 2023 13:06:09 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 987FC3858291 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=ens-lyon.org Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=bounce.ens-lyon.org Received: from localhost (localhost [127.0.0.1]) by sonata.ens-lyon.org (Postfix) with ESMTP id CB7B120186; Mon, 1 May 2023 15:06:08 +0200 (CEST) Received: from sonata.ens-lyon.org ([127.0.0.1]) by localhost (sonata.ens-lyon.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Z777mkBQ99-H; Mon, 1 May 2023 15:06:08 +0200 (CEST) Received: from begin (lfbn-bor-1-1163-184.w92-158.abo.wanadoo.fr [92.158.138.184]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by sonata.ens-lyon.org (Postfix) with ESMTPSA id A4D5820184; Mon, 1 May 2023 15:06:08 +0200 (CEST) Received: from samy by begin with local (Exim 4.96) (envelope-from ) id 1ptTEG-00G8hE-0g; Mon, 01 May 2023 15:06:08 +0200 From: Samuel Thibault To: libc-alpha@sourceware.org Cc: Samuel Thibault , commit-hurd@gnu.org Subject: [hurd,commited] socket: Fix tst-cmsghdr-skeleton.c use of cmsg_len Date: Mon, 1 May 2023 15:06:07 +0200 Message-Id: <20230501130607.3846669-1-samuel.thibault@ens-lyon.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-Spam-Status: No, score=-13.5 required=5.0 tests=BAYES_00, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, RCVD_IN_DNSWL_LOW, SPF_HELO_PASS, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libc-alpha-bounces+patchwork=sourceware.org@sourceware.org Sender: "Libc-alpha" cmsg_len is supposed to be socklen_t according to standards, but it was made size_t on Linux, see BZ 16919. For ports that have it socklen_t, SIZE_MAX is too large. We can however explicitly cast it to the type of cmsg_len so it will fit according to that type. --- socket/tst-cmsghdr-skeleton.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/socket/tst-cmsghdr-skeleton.c b/socket/tst-cmsghdr-skeleton.c index 296a0a8581..9516139f87 100644 --- a/socket/tst-cmsghdr-skeleton.c +++ b/socket/tst-cmsghdr-skeleton.c @@ -49,7 +49,7 @@ RUN_TEST_FUNCNAME (CMSG_NXTHDR_IMPL) (void) /* The first header length is so big, using it would cause an overflow. */ cmsg = CMSG_FIRSTHDR (&m); TEST_VERIFY_EXIT ((char *) cmsg == cmsgbuf); - cmsg->cmsg_len = SIZE_MAX; + cmsg->cmsg_len = (__typeof (cmsg->cmsg_len)) SIZE_MAX; cmsg = CMSG_NXTHDR_IMPL (&m, cmsg); TEST_VERIFY_EXIT (cmsg == NULL);