| /* Get current working directory. NaCl version. |
| Copyright (C) 2015 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) |