1: /* Copyright (C) 1996, 1997, 2000, 2002 Free Software Foundation, Inc.
    2:    This file is part of the GNU C Library.
    3: 
    4:    The GNU C Library is free software; you can redistribute it and/or
    5:    modify it under the terms of the GNU Lesser General Public
    6:    License as published by the Free Software Foundation; either
    7:    version 2.1 of the License, or (at your option) any later version.
    8: 
    9:    The GNU C Library is distributed in the hope that it will be useful,
   10:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   12:    Lesser General Public License for more details.
   13: 
   14:    You should have received a copy of the GNU Lesser General Public
   15:    License along with the GNU C Library; if not, write to the Free
   16:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   17:    02111-1307 USA.  */
   18: 
   19: #include <errno.h>
   20: #include <netdb.h>
   21: #include <stdlib.h>
   22: #include <bits/libc-lock.h>
   23: 
   24: /* Static buffer for return value.  We allocate it when needed.  */
   25: libc_freeres_ptr (static char *buffer);
   26: /* All three strings should fit in a block of 1kB size.  */
   27: #define BUFSIZE 1024
   28: 
   29: 
   30: 
   31: static void
   32: allocate (void)
   33: {
   34:   buffer = (char *) malloc (BUFSIZE);
   35: }
   36: 
   37: int
   38: getnetgrent (char **hostp, char **userp, char **domainp)
   39: {
   40:   __libc_once_define (static, once);
   41:   __libc_once (once, allocate);
   42: 
   43:   if (buffer == NULL)
   44:     {
   45:       __set_errno (ENOMEM);
   46:       return -1;
   47:     }
   48: 
   49:   return __getnetgrent_r (hostp, userp, domainp, buffer, BUFSIZE);
   50: }