From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS17314 8.43.84.0/22 X-Spam-Status: No, score=-2.7 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, PDS_RDNS_DYNAMIC_FP,RCVD_IN_DNSWL_HI,RDNS_DYNAMIC,SPF_HELO_PASS, SPF_PASS,T_PDS_OTHER_BAD_TLD shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from sourceware.org (ip-8-43-85-97.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id B092C1F601 for ; Sun, 4 Dec 2022 06:00:13 +0000 (UTC) Authentication-Results: dcvr.yhbt.net; dkim=pass (1024-bit key; secure) header.d=sourceware.org header.i=@sourceware.org header.b="jNGPwGC5"; dkim-atps=neutral Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 535B33854572 for ; Sun, 4 Dec 2022 06:00:12 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 535B33854572 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1670133612; bh=Es37w2HIg9reAuC0yxJHoQWCN5uKZ7oevIYfLE9Cbeg=; h=Subject:To:Cc:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=jNGPwGC5c9htTTGyqUc224z7dJcmLV1dN4b2IBeD84BHp0opVwYCvi22tCzmBUWr2 w9add+N3uqRHv8I4w4oPktw+Z/cQ53tXXp1jjKfddBW00p5BW7sOTmxc73RrmvcsWl qXylgc57D1VgRcZW1M98rGLhcBQC8SY0vuv0mDac= Received: from xry111.site (xry111.site [IPv6:2001:470:683e::1]) by sourceware.org (Postfix) with ESMTPS id 0ED5A385B19A for ; Sun, 4 Dec 2022 05:59:53 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 0ED5A385B19A Received: from localhost.localdomain (xry111.site [IPv6:2001:470:683e::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-384) server-digest SHA384) (Client did not present a certificate) (Authenticated sender: xry111@xry111.site) by xry111.site (Postfix) with ESMTPSA id B29A965A8C; Sun, 4 Dec 2022 00:59:49 -0500 (EST) Message-ID: Subject: Re: bind(2): Missing [[gnu::nonnull]] To: Andreas Schwab , Xi Ruoyao via Libc-alpha Cc: Alejandro Colomar Date: Sun, 04 Dec 2022 13:59:48 +0800 In-Reply-To: <87wn78cnpe.fsf@igel.home> References: <8292ef824696e0fbac4f4ed036aad43c0458b8a2.camel@xry111.site> <87wn78cnpe.fsf@igel.home> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.46.0 MIME-Version: 1.0 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: , From: Xi Ruoyao via Libc-alpha Reply-To: Xi Ruoyao Errors-To: libc-alpha-bounces+e=80x24.org@sourceware.org Sender: "Libc-alpha" On Sat, 2022-12-03 at 20:05 +0100, Andreas Schwab wrote: > > Currently the man page says: > >=20 > > EFAULT: addr points outside the user's accessible address space. > >=20 > > And bind(2) indeed sets errno to EFAULT and return -1 when NULL is > > passed as addr. >=20 > You can never depend on EFAULT for invalid addresses. Hmm, is this documented somewhere? --=20 Xi Ruoyao School of Aerospace Science and Technology, Xidian University