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glibc  2.9
utmp_file.c
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00001 /* Copyright (C) 1998, 2005 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.
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 <string.h>
00021 #include <unistd.h>
00022 
00023 #define TRANSFORM_UTMP_FILE_NAME(file_name) \
00024     ((strcmp (file_name, _PATH_UTMP) == 0 \
00025       && __access (_PATH_UTMP "x", F_OK) == 0) ? (_PATH_UTMP "x") : \
00026      ((strcmp (file_name, _PATH_WTMP) == 0 \
00027        && __access ( _PATH_WTMP "x", F_OK) == 0) ? (_PATH_WTMP "x") : \
00028       ((strcmp (file_name, _PATH_UTMP "x") == 0 \
00029        && __access (_PATH_UTMP "x", F_OK) != 0) ? _PATH_UTMP : \
00030        ((strcmp (file_name, _PATH_WTMP "x") == 0 \
00031         && __access (_PATH_WTMP "x", F_OK) != 0) ? _PATH_WTMP : \
00032        file_name))))
00033 
00034 #include <login/utmp_file.c>