From patchwork Thu Sep 7 22:41:56 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Albert ARIBAUD (3ADEV)" X-Patchwork-Id: 811229 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=sourceware.org (client-ip=209.132.180.131; helo=sourceware.org; envelope-from=libc-alpha-return-84347-incoming=patchwork.ozlabs.org@sourceware.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; secure) header.d=sourceware.org header.i=@sourceware.org header.b="b0YgKKAH"; dkim-atps=neutral Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3xpFwH12Hdz9sDB for ; Fri, 8 Sep 2017 08:47:58 +1000 (AEST) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:date:message-id:in-reply-to :references; q=dns; s=default; b=Mu09fvM5bWYFnvv9x9w8p8DUCTosErM XUzykJRGkWxpNP7dd8nR4ppZl6qB1MzF3nvMJZ34TRXV3H+2k9cZnNdO6hdYmi4t 63CqU+Dhh3UA0BHsylKQ6JY722jySrkcZXxwZzJawHsIW+j70HAqm8UdUdUKMj0/ TVQ0XoMYp3i8= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:date:message-id:in-reply-to :references; s=default; bh=HVOvmjUt/I1tb5uThdaWXUf4+Yc=; b=b0YgK KAHXb59Yl3nJ1AZKjUYiFAnWHjasg97WlO1bthW1/6ITwomagC60GeW0eiUehaYs MAPm/jDN0NXVWeEKlQq8fPwDRZkEXHSGRZSxMCO68fz7vapSCk0DFxra//rw92Fw HZVpg1IXeczCUBqnj3JAuyrh3lOnISiyH+vNXI= Received: (qmail 88923 invoked by alias); 7 Sep 2017 22:44:33 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 88758 invoked by uid 89); 7 Sep 2017 22:44:33 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-26.6 required=5.0 tests=BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, KAM_LAZY_DOMAIN_SECURITY, RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.2 spammy= X-HELO: smtp6-g21.free.fr From: "Albert ARIBAUD (3ADEV)" To: libc-alpha@sourceware.org Cc: "Albert ARIBAUD (3ADEV)" Subject: [RFC PATCH 29/52] Y2038: add function __stime_t64 Date: Fri, 8 Sep 2017 00:41:56 +0200 Message-Id: <20170907224219.12483-30-albert.aribaud@3adev.fr> In-Reply-To: <20170907224219.12483-29-albert.aribaud@3adev.fr> References: <20170907224219.12483-1-albert.aribaud@3adev.fr> <20170907224219.12483-2-albert.aribaud@3adev.fr> <20170907224219.12483-3-albert.aribaud@3adev.fr> <20170907224219.12483-4-albert.aribaud@3adev.fr> <20170907224219.12483-5-albert.aribaud@3adev.fr> <20170907224219.12483-6-albert.aribaud@3adev.fr> <20170907224219.12483-7-albert.aribaud@3adev.fr> <20170907224219.12483-8-albert.aribaud@3adev.fr> <20170907224219.12483-9-albert.aribaud@3adev.fr> <20170907224219.12483-10-albert.aribaud@3adev.fr> <20170907224219.12483-11-albert.aribaud@3adev.fr> <20170907224219.12483-12-albert.aribaud@3adev.fr> <20170907224219.12483-13-albert.aribaud@3adev.fr> <20170907224219.12483-14-albert.aribaud@3adev.fr> <20170907224219.12483-15-albert.aribaud@3adev.fr> <20170907224219.12483-16-albert.aribaud@3adev.fr> <20170907224219.12483-17-albert.aribaud@3adev.fr> <20170907224219.12483-18-albert.aribaud@3adev.fr> <20170907224219.12483-19-albert.aribaud@3adev.fr> <20170907224219.12483-20-albert.aribaud@3adev.fr> <20170907224219.12483-21-albert.aribaud@3adev.fr> <20170907224219.12483-22-albert.aribaud@3adev.fr> <20170907224219.12483-23-albert.aribaud@3adev.fr> <20170907224219.12483-24-albert.aribaud@3adev.fr> <20170907224219.12483-25-albert.aribaud@3adev.fr> <20170907224219.12483-26-albert.aribaud@3adev.fr> <20170907224219.12483-27-albert.aribaud@3adev.fr> <20170907224219.12483-28-albert.aribaud@3adev.fr> <20170907224219.12483-29-albert.aribaud@3adev.fr> These implementations use only 32-bit time kernel syscalls. Therefore, stime() will always set errno to EOVERFLOW and return -1 for dates beyond Y2038. Signed-off-by: Albert ARIBAUD (3ADEV) --- sysdeps/unix/sysv/linux/stime.c | 70 +++++++++++++++++++++++++++++++++++++++++ time/Versions | 1 + time/stime.c | 17 ++++++++++ 3 files changed, 88 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/stime.c diff --git a/sysdeps/unix/sysv/linux/stime.c b/sysdeps/unix/sysv/linux/stime.c new file mode 100644 index 0000000000..177c9334ef --- /dev/null +++ b/sysdeps/unix/sysv/linux/stime.c @@ -0,0 +1,70 @@ +/* Copyright (C) 1992-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include /* For NULL. */ +#include +#include + +/* Set the system clock to *WHEN. */ + +int +stime (const time_t *when) +{ + struct timeval tv; + + if (when == NULL) + { + __set_errno (EINVAL); + return -1; + } + + tv.tv_sec = *when; + tv.tv_usec = 0; + return __settimeofday (&tv, (struct timezone *) 0); +} + +/* 64-bit time version */ + +extern int __y2038_linux_support; + +int +__stime_t64 (const __time64_t *when) +{ + struct timeval tv32; + + if (when == NULL) + { + __set_errno (EINVAL); + return -1; + } + + if (__y2038_linux_support) + { + /* TODO: implement 64-bit-time syscall case */ + } + + if (*when > INT_MAX) + { + __set_errno (EOVERFLOW); + return -1; + } + + tv32.tv_sec = *when; + tv32.tv_usec = 0; + return __settimeofday (&tv32, (struct timezone *) 0); +} diff --git a/time/Versions b/time/Versions index 02dc8d6146..3dca51abcb 100644 --- a/time/Versions +++ b/time/Versions @@ -72,5 +72,6 @@ libc { GLIBC_Y2038 { __timespec_get64; __time_t64; + __stime_t64; } } diff --git a/time/stime.c b/time/stime.c index 723eedacf1..c1c7c4c9b5 100644 --- a/time/stime.c +++ b/time/stime.c @@ -35,3 +35,20 @@ stime (const time_t *when) } stub_warning (stime) + +/* 64-bit time version */ + +int +__stime_t64 (const __time64_t *when) +{ + if (when == NULL) + { + __set_errno (EINVAL); + return -1; + } + + __set_errno (ENOSYS); + return -1; +} + +stub_warning (__stime_t64)