sortix-mirror/libc/stdio/fdio_seek.c

/*******************************************************************************

    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013, 2014, 2015.

    This file is part of the Sortix C Library.

    The Sortix 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 3 of the License, or (at your
    option) any later version.

    The Sortix 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 Sortix C Library. If not, see <http://www.gnu.org/licenses/>.

    stdio/fdio_seek.c
    File descriptor FILE backend seeking.

*******************************************************************************/

#include <stdio.h>
#include <unistd.h>

#include "fdio.h"

off_t fdio_seek(void* user, off_t offset, int whence)
{
	FILE* fp = (FILE*) user;
	return lseek(fp->fd, offset, whence);
}