view lib/futimens.c @ 40212:8da9577294da

unistr/*, uniconv/*: Fix undefined behaviour. Reported by Jeffrey Walton <noloader@gmail.com>. * lib/unistr/u-cpy.h (FUNC): Don't invoke memcpy with a zero size. * lib/unistr/u-cpy-alloc.h (FUNC): Likewise. * lib/uniconv/u8-conv-from-enc.c (u8_conv_from_encoding): Likewise. * lib/uniconv/u8-conv-to-enc.c (u8_conv_to_encoding): Likewise.
author Bruno Haible <bruno@clisp.org>
date Sat, 09 Mar 2019 00:01:47 +0100
parents b06060465f09
children
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/* Set the access and modification time of an open fd.
   Copyright (C) 2009-2019 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */

/* written by Eric Blake */

#include <config.h>

#include <sys/stat.h>

#include "utimens.h"

/* Set the access and modification timestamps of FD to be
   TIMESPEC[0] and TIMESPEC[1], respectively.
   Fail with ENOSYS on systems without futimes (or equivalent).
   If TIMESPEC is null, set the timestamps to the current time.
   Return 0 on success, -1 (setting errno) on failure.  */
int
futimens (int fd, struct timespec const times[2])
{
  /* fdutimens also works around bugs in native futimens, when running
     with glibc compiled against newer headers but on a Linux kernel
     older than 2.6.32.  */
  return fdutimens (fd, NULL, times);
}