From patchwork Wed Apr 18 20:17:55 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Albert ARIBAUD X-Patchwork-Id: 26818 Received: (qmail 119312 invoked by alias); 18 Apr 2018 20:21:30 -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 119195 invoked by uid 89); 18 Apr 2018 20:21:29 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-24.8 required=5.0 tests=BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, KAM_LAZY_DOMAIN_SECURITY, KAM_NUMSUBJECT, KAM_SHORT, RCVD_IN_DNSWL_LOW, RCVD_IN_RP_RNBL autolearn=ham version=3.3.2 spammy= X-HELO: smtp3-g21.free.fr From: "Albert ARIBAUD (3ADEV)" To: libc-alpha@sourceware.org Cc: "Albert ARIBAUD (3ADEV)" Subject: [[PATCH RFC 2] 39/63] Y2038: add function __stime64 Date: Wed, 18 Apr 2018 22:17:55 +0200 Message-Id: <20180418201819.15952-40-albert.aribaud@3adev.fr> In-Reply-To: <20180418201819.15952-39-albert.aribaud@3adev.fr> References: <20180418201819.15952-1-albert.aribaud@3adev.fr> <20180418201819.15952-2-albert.aribaud@3adev.fr> <20180418201819.15952-3-albert.aribaud@3adev.fr> <20180418201819.15952-4-albert.aribaud@3adev.fr> <20180418201819.15952-5-albert.aribaud@3adev.fr> <20180418201819.15952-6-albert.aribaud@3adev.fr> <20180418201819.15952-7-albert.aribaud@3adev.fr> <20180418201819.15952-8-albert.aribaud@3adev.fr> <20180418201819.15952-9-albert.aribaud@3adev.fr> <20180418201819.15952-10-albert.aribaud@3adev.fr> <20180418201819.15952-11-albert.aribaud@3adev.fr> <20180418201819.15952-12-albert.aribaud@3adev.fr> <20180418201819.15952-13-albert.aribaud@3adev.fr> <20180418201819.15952-14-albert.aribaud@3adev.fr> <20180418201819.15952-15-albert.aribaud@3adev.fr> <20180418201819.15952-16-albert.aribaud@3adev.fr> <20180418201819.15952-17-albert.aribaud@3adev.fr> <20180418201819.15952-18-albert.aribaud@3adev.fr> <20180418201819.15952-19-albert.aribaud@3adev.fr> <20180418201819.15952-20-albert.aribaud@3adev.fr> <20180418201819.15952-21-albert.aribaud@3adev.fr> <20180418201819.15952-22-albert.aribaud@3adev.fr> <20180418201819.15952-23-albert.aribaud@3adev.fr> <20180418201819.15952-24-albert.aribaud@3adev.fr> <20180418201819.15952-25-albert.aribaud@3adev.fr> <20180418201819.15952-26-albert.aribaud@3adev.fr> <20180418201819.15952-27-albert.aribaud@3adev.fr> <20180418201819.15952-28-albert.aribaud@3adev.fr> <20180418201819.15952-29-albert.aribaud@3adev.fr> <20180418201819.15952-30-albert.aribaud@3adev.fr> <20180418201819.15952-31-albert.aribaud@3adev.fr> <20180418201819.15952-32-albert.aribaud@3adev.fr> <20180418201819.15952-33-albert.aribaud@3adev.fr> <20180418201819.15952-34-albert.aribaud@3adev.fr> <20180418201819.15952-35-albert.aribaud@3adev.fr> <20180418201819.15952-36-albert.aribaud@3adev.fr> <20180418201819.15952-37-albert.aribaud@3adev.fr> <20180418201819.15952-38-albert.aribaud@3adev.fr> <20180418201819.15952-39-albert.aribaud@3adev.fr> This implementation uses __settimeofday64. Therefore, on a system where current time-of-day is 32 bits, this implementation will fail for dates beyond Y2038. --- sysdeps/unix/stime64.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ time/Makefile | 2 +- time/Versions | 1 + time/stime.c | 17 +++++++++++++++++ 4 files changed, 66 insertions(+), 1 deletion(-) create mode 100644 sysdeps/unix/stime64.c diff --git a/sysdeps/unix/stime64.c b/sysdeps/unix/stime64.c new file mode 100644 index 0000000000..2506227395 --- /dev/null +++ b/sysdeps/unix/stime64.c @@ -0,0 +1,47 @@ +/* Set the system clock on a unix system + + Copyright (C) 2018 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 +__stime64 (const __time64_t *when) +{ + struct __timeval64 tv; + + if (when == NULL) + { + __set_errno (EINVAL); + return -1; + } + + if (*when > INT_MAX) + { + __set_errno (EOVERFLOW); + return -1; + } + + tv.tv_sec = *when; + tv.tv_usec = 0; + return __settimeofday64 (&tv, (struct timezone *) 0); +} diff --git a/time/Makefile b/time/Makefile index 23da9805ef..fac49865a2 100644 --- a/time/Makefile +++ b/time/Makefile @@ -31,7 +31,7 @@ headers := time.h sys/time.h sys/timeb.h bits/time.h \ routines := offtime asctime clock ctime ctime_r difftime \ gmtime localtime mktime time \ - time64 \ + time64 stime64 \ gettimeofday settimeofday adjtime tzset \ gettimeofday64 settimeofday64 \ tzfile getitimer setitimer \ diff --git a/time/Versions b/time/Versions index 9baff82719..6b1ca80c1e 100644 --- a/time/Versions +++ b/time/Versions @@ -87,5 +87,6 @@ libc { __gettimeofday64; __settimeofday64; __time64; + __stime64; } } diff --git a/time/stime.c b/time/stime.c index 0378e23888..5d22aaae61 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 +__stime64 (const __time64_t *when) +{ + if (when == NULL) + { + __set_errno (EINVAL); + return -1; + } + + __set_errno (ENOSYS); + return -1; +} + +stub_warning (__stime64)