mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +00:00
a346370d58
(__readlinkat_alias): New alias. (readlinkat): New inline function. * include/unistd.h (readlinkat): Add libc_hidden_proto. * sysdeps/unix/sysv/linux/readlinkat.c (readlinkat): Add libc_hidden_def. * io/readlinkat.c (readlinkat): Likewise. * debug/readlinkat_chk.c: New file. * debug/Makefile (routines): Add readlinkat_chk. * debug/Versions (libc): Export __readlinkat_chk@@GLIBC_2.5. * debug/tst-chk1.c (do_test): Add readlinkat tests. * nis/nss_nisplus/nisplus-netgrp.c: Cleanups. code is possible. Move compatibility code in .text.compat section. over gaih array. There is only one function to call in the moment.
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/* Copyright (C) 2005, 2006 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 <fcntl.h>
|
|
#include <unistd.h>
|
|
|
|
/* Read the contents of the symbolic link PATH relative to FD into no
|
|
more than LEN bytes of BUF. The contents are not null-terminated.
|
|
Returns the number of characters read, or -1 for errors. */
|
|
ssize_t
|
|
readlinkat (fd, path, buf, len)
|
|
int fd;
|
|
const char *path;
|
|
char *buf;
|
|
size_t len;
|
|
{
|
|
if (path == NULL)
|
|
{
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
if (fd != AT_FDCWD && fd < 0 && *path != '/')
|
|
{
|
|
__set_errno (EBADF);
|
|
return -1;
|
|
}
|
|
|
|
__set_errno (ENOSYS);
|
|
return -1;
|
|
}
|
|
stub_warning (readlinkat)
|
|
libc_hidden_def (readlinkat)
|
|
|
|
#include <stub-tag.h>
|