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/* 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);
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