/* futimes -- change access and modification times of open file. Linux version. Copyright (C) 2002-2017 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 <http://www.gnu.org/licenses/>. */ #include <errno.h> #include <sysdep.h> #include <string.h> #include <time.h> #include <utime.h> #include <sys/time.h> #include <_itoa.h> #include <fcntl.h> /* Change the access time of the file associated with FD to TVP[0] and the modification time of FILE to TVP[1]. Starting with 2.6.22 the Linux kernel has the utimensat syscall which can be used to implement futimes. */ int __futimes (int fd, const struct timeval tvp[2]) { /* The utimensat system call expects timespec not timeval. */ struct timespec ts[2]; if (tvp != NULL) { if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000 || tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000) return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); TIMEVAL_TO_TIMESPEC (&tvp[0], &ts[0]); TIMEVAL_TO_TIMESPEC (&tvp[1], &ts[1]); } return INLINE_SYSCALL (utimensat, 4, fd, NULL, tvp ? &ts : NULL, 0); } weak_alias (__futimes, futimes)