glibc/sysdeps/mach/hurd/ftruncate.c

35 lines
1.1 KiB
C

/* Copyright (C) 1991-2020 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
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <sys/types.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/fd.h>
/* Truncate the file referenced by FD to LENGTH bytes. */
int
__ftruncate (int fd, __off_t length)
{
error_t err;
if (err = HURD_DPORT_USE (fd, __file_set_size (port, length)))
return __hurd_dfail (fd, err);
return 0;
}
weak_alias (__ftruncate, ftruncate)