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/*
* libexplain - Explain errno values returned by libc functions
* Copyright (C) 2010, 2012, 2013 Peter Miller
*
* This program 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 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 Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libexplain/ac/errno.h>
#include <libexplain/ac/sys/time.h>
#include <libexplain/futimes.h>
#include <libexplain/output.h>
int
explain_futimes_on_error(int fildes, const struct timeval *tv)
{
int result;
#ifdef HAVE_FUTIMES
result = futimes(fildes, tv);
#ifdef __linux__
if (result > 0)
{
/* Work around a kernel bug:
* http://bugzilla.redhat.com/442352
* http://bugzilla.redhat.com/449910
* It appears that utimensat can mistakenly return 280 rather
* than -1 upon ENOSYS failure.
*/
errno = ENOSYS;
result = -1;
}
#endif /* __linux__ */
#else
errno = ENOSYS;
result = -1;
#endif
if (result < 0)
{
int hold_errno;
hold_errno = errno;
explain_output_error("%s", explain_errno_futimes(hold_errno, fildes,
tv));
errno = hold_errno;
}
return result;
}
/* vim: set ts=8 sw=4 et : */
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