From patchwork Wed Apr 18 20:17:36 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Albert ARIBAUD X-Patchwork-Id: 26799 Received: (qmail 108406 invoked by alias); 18 Apr 2018 20:20:04 -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 108203 invoked by uid 89); 18 Apr 2018 20:20:02 -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, 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] 20/63] Y2038: add function __futimens64 Date: Wed, 18 Apr 2018 22:17:36 +0200 Message-Id: <20180418201819.15952-21-albert.aribaud@3adev.fr> In-Reply-To: <20180418201819.15952-20-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> --- io/futimens.c | 8 +++++++ sysdeps/unix/sysv/linux/futimens.c | 48 ++++++++++++++++++++++++++++++++++++++ time/Versions | 1 + 3 files changed, 57 insertions(+) diff --git a/io/futimens.c b/io/futimens.c index fb170ffc3c..2e9648a16e 100644 --- a/io/futimens.c +++ b/io/futimens.c @@ -32,3 +32,11 @@ futimens (int fd, const struct timespec tsp[2]) return -1; } stub_warning (futimens) + +int +__futimens64 (int fd, const struct __timespec64 tsp[2]) +{ + __set_errno (ENOSYS); + return -1; +} +stub_warning (__futimens64) diff --git a/sysdeps/unix/sysv/linux/futimens.c b/sysdeps/unix/sysv/linux/futimens.c index bc7fe54331..fb338b92ea 100644 --- a/sysdeps/unix/sysv/linux/futimens.c +++ b/sysdeps/unix/sysv/linux/futimens.c @@ -36,3 +36,51 @@ futimens (int fd, const struct timespec tsp[2]) /* Avoid implicit array coercion in syscall macros. */ return INLINE_SYSCALL (utimensat, 4, fd, NULL, &tsp[0], 0); } + +/* 64-bit time version */ + +extern int __y2038_linux_support; + +int +__futimens64 (int fd, const struct __timespec64 tsp[2]) +{ + struct timespec ts32[2]; +/* Only try and use this syscall if defined by kernel */ +#ifdef __NR_utimesat64 + struct __timespec64 ts64[2]; + int res; +#endif + + if (fd < 0) + return INLINE_SYSCALL_ERROR_RETURN_VALUE (EBADF); + +/* Only try and use this syscall if defined by kernel */ +#ifdef __NR_utimesat64 + if (__y2038_linux_support) + { + ts64[0].tv_sec = tsp[0].tv_sec; + ts64[0].tv_nsec = tsp[0].tv_nsec; + ts64[0].tv_pad = 0; + ts64[1].tv_sec = tsp[1].tv_sec; + ts64[1].tv_nsec = tsp[1].tv_nsec; + ts64[1].tv_pad = 0; + res = INLINE_SYSCALL (utimensat64, 4, fd, NULL, &ts64[0], 0); + if (res == 0 || errno != ENOSYS) + return res; + } +#endif + + if (! timespec64_to_timespec(&tsp[0], &ts32[0])) + { + __set_errno(EOVERFLOW); + return -1; + } + + if (! timespec64_to_timespec(&tsp[1], &ts32[1])) + { + __set_errno(EOVERFLOW); + return -1; + } + + return INLINE_SYSCALL (utimensat, 4, fd, NULL, &ts32[0], 0); +} diff --git a/time/Versions b/time/Versions index 668c134f12..6105da5cb9 100644 --- a/time/Versions +++ b/time/Versions @@ -79,5 +79,6 @@ libc { __clock_getres64; __clock_nanosleep64; __timespec_get64; + __futimens64; } }