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glibc  2.9
getutid.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 struct utmp *
00028 __getutid (const struct utmp *id)
00029 {
00030   struct utmp *result;
00031 
00032   if (buffer == NULL)
00033     {
00034       buffer = (struct utmp *) malloc (sizeof (struct utmp));
00035       if (buffer == NULL)
00036         return NULL;
00037     }
00038   if (__getutid_r (id, buffer, &result) < 0)
00039     return NULL;
00040 
00041   return result;
00042 }
00043 weak_alias (__getutid, getutid)