mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-03 04:01:43 +08:00
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/* Get current working directory. NaCl version.
|
|
Copyright (C) 2015-2016 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 <limits.h>
|
|
#include <stdlib.h>
|
|
#include <nacl-interfaces.h>
|
|
|
|
/* Get the pathname of the current working directory,
|
|
and put it in SIZE bytes of BUF. Returns NULL if the
|
|
directory couldn't be determined or SIZE was too small.
|
|
If successful, returns BUF. In GNU, if BUF is NULL,
|
|
an array is allocated with `malloc'; the array is SIZE
|
|
bytes long, unless SIZE <= 0, in which case it is as
|
|
big as necessary. */
|
|
char *
|
|
__getcwd (char *buf, size_t size)
|
|
{
|
|
char *use_buf = buf;
|
|
|
|
if (buf == NULL)
|
|
{
|
|
if (size == 0)
|
|
size = PATH_MAX;
|
|
use_buf = malloc (size);
|
|
if (__glibc_unlikely (use_buf == NULL))
|
|
return NULL;
|
|
}
|
|
|
|
int error = __nacl_irt_dev_filename.getcwd (use_buf, size);
|
|
if (__glibc_unlikely (error))
|
|
{
|
|
if (use_buf != buf)
|
|
free (use_buf);
|
|
errno = error;
|
|
return NULL;
|
|
}
|
|
|
|
return use_buf;
|
|
}
|
|
weak_alias (__getcwd, getcwd)
|