/* Copyright (C) 1991,95,96,97,98,2000 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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <ros/syscall.h>
#include <assert.h>

/* Seek to OFFSET on FD, starting from WHENCE.  */
off64_t
__libc_lseek64 (int fd, off64_t offset, int whence)
{
	off64_t retoff = 0;
	off_t hi = 0;
	off_t lo = 0;
	int ret;
	if (fd < 0) {
		__set_errno (EBADF);
		return -1;
	}
	switch (whence) {
	case SEEK_SET:
	case SEEK_CUR:
	case SEEK_END:
		break;
	default:
		__set_errno (EINVAL);
		return -1;
	}
	hi = offset >> 32;
	lo = offset & 0xffffffff;
	ret = ros_syscall(SYS_llseek, fd, hi, lo, &retoff, whence, 0);
	if (ret) {
		assert(ret == -1);	/* catch odd bugs */
		return ret;
	}
	return retoff;
}
weak_alias (__libc_lseek64, __lseek64)
weak_alias (__libc_lseek64, lseek64)