| /* Determine name of the slave side of a pseudo-terminal. |
| Copyright (C) 1998, 2002, 2010-2020 Free Software Foundation, Inc. |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program 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 General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| |
| #include <config.h> |
| |
| #include <stdlib.h> |
| |
| /* Static buffer for 'ptsname'. */ |
| static char buffer[64]; |
| |
| |
| /* Return the pathname of the pseudo terminal slave associated with |
| the master FD is open on, or NULL on errors. |
| The returned storage is good until the next call to this function. */ |
| char * |
| ptsname (int fd) |
| { |
| return ptsname_r (fd, buffer, sizeof (buffer)) != 0 ? NULL : buffer; |
| } |