| /* Copyright (C) 1996, 1997 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 Library General Public License as |
| published by the Free Software Foundation; either version 2 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 |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with the GNU C Library; see the file COPYING.LIB. If not, |
| write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include <errno.h> |
| #include <netdb.h> |
| #include <stdlib.h> |
| #include <bits/libc-lock.h> |
| |
| /* Statis buffer for return value. We allocate it when needed. */ |
| static char *buffer; |
| /* All three strings should fit in a block of 1kB size. */ |
| #define BUFSIZE 1024 |
| |
| |
| |
| static void |
| allocate (void) |
| { |
| buffer = (char *) malloc (BUFSIZE); |
| } |
| |
| int |
| getnetgrent (char **hostp, char **userp, char **domainp) |
| { |
| __libc_once_define (static, once); |
| __libc_once (once, allocate); |
| |
| if (buffer == NULL) |
| { |
| __set_errno (ENOMEM); |
| return -1; |
| } |
| |
| return __getnetgrent_r (hostp, userp, domainp, buffer, BUFSIZE); |
| } |
| |
| |
| /* Make sure the memory is freed if the programs ends while in |
| memory-debugging mode and something actually was allocated. */ |
| static void |
| __attribute__ ((unused)) |
| free_mem (void) |
| { |
| if (buffer != NULL) |
| free (buffer); |
| } |
| |
| text_set_element (__libc_subfreeres, free_mem); |