glibc/sysdeps/stub/lseek.c

50 lines
1.3 KiB
C
Raw Normal View History

1995-02-18 09:27:10 +08:00
/* Copyright (C) 1991, 1995 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
/* Seek to OFFSET on FD, starting from WHENCE. */
off_t
DEFUN(__lseek, (fd, offset, whence), int fd AND off_t offset AND int whence)
{
if (fd < 0)
{
errno = EBADF;
return -1;
}
switch (whence)
{
case SEEK_SET:
case SEEK_CUR:
case SEEK_END:
break;
default:
errno = EINVAL;
return -1;
}
errno = ENOSYS;
return -1;
}
stub_warning (lseek)
weak_alias (__lseek, lseek)