glibc/sysdeps/nacl/lseek.c

44 lines
1.4 KiB
C

/* lseek -- Move the file position of a file descriptor. NaCl version.
Copyright (C) 2015-2017 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
<http://www.gnu.org/licenses/>. */
#include <unistd.h>
#include <nacl-interfaces.h>
/* Seek to OFFSET on FD, starting from WHENCE. */
off_t
__libc_lseek (int fd, off_t offset, int whence)
{
off_t result;
int error = __nacl_irt_fdio.seek (fd, offset, whence, &result);
if (error)
{
__set_errno (error);
return -1;
}
return result;
}
libc_hidden_def (__lseek)
weak_alias (__libc_lseek, __lseek)
weak_alias (__libc_lseek, lseek)
/* Since off64_t is the same as off_t, lseek64 is just an alias. */
weak_alias (__libc_lseek, __libc_lseek64)
weak_alias (__libc_lseek, __lseek64)
weak_alias (__libc_lseek, lseek64)