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glibc  2.9
getutent.c
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00001 /* Copyright (C) 1996, 1997, 1998, 2001, 2002 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <stdlib.h>
00021 #include <utmp.h>
00022 
00023 
00024 /* Local buffer to store the result.  */
00025 libc_freeres_ptr (static struct utmp *buffer);
00026 
00027 
00028 struct utmp *
00029 __getutent (void)
00030 {
00031   struct utmp *result;
00032 
00033   if (buffer == NULL)
00034     {
00035       buffer = (struct utmp *) malloc (sizeof (struct utmp));
00036       if (buffer == NULL)
00037         return NULL;
00038     }
00039 
00040   if (__getutent_r (buffer, &result) < 0)
00041     return NULL;
00042 
00043   return result;
00044 }
00045 weak_alias (__getutent, getutent)