mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-01 17:30:07 +00:00
faf7bbc2d0
* sysdeps/mach/hurd/lseek.c: Include <errno.h>. * sysdeps/mach/hurd/lseek.c (__libc_lseek): Check that the value returned by __lseek64 can fit off_t, return EOVERFLOW otherwise.
41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
/* Copyright (C) 1991-2018 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 <sys/types.h>
|
|
#include <errno.h>
|
|
|
|
/* Seek to OFFSET on FD, starting from WHENCE. */
|
|
off_t
|
|
__libc_lseek (int fd, off_t offset, int whence)
|
|
{
|
|
off64_t res64 = __libc_lseek64 (fd, (off64_t) offset, whence);
|
|
off_t res = (off_t) res64;
|
|
|
|
if (sizeof res != sizeof res64 && res != res64)
|
|
{
|
|
__set_errno (EOVERFLOW);
|
|
return (off_t) -1;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
weak_alias (__libc_lseek, __lseek)
|
|
libc_hidden_def (__lseek)
|
|
weak_alias (__libc_lseek, lseek)
|