115 lines
2.5 KiB
C
115 lines
2.5 KiB
C
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/*****************************************************************************
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*
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* $Id$
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* Purpose ...............: MBSE BBS Shadow Password Suite
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* Original Source .......: Shadow Password Suite
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* Original Copyright ....: Julianne Frances Haugh and others.
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*
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*****************************************************************************
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* Copyright (C) 1997-2001
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*
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* Michiel Broek FIDO: 2:280/2802
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* Beekmansbos 10
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* 1971 BV IJmuiden
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* the Netherlands
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*
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* This file is part of MBSE BBS.
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*
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* This BBS is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* MBSE BBS is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with MBSE BBS; see the file COPYING. If not, write to the Free
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* Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*****************************************************************************/
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#include "../config.h"
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#ifndef HAVE_GETUTENT
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#include "mblogin.h"
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#include <stdio.h>
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#include <fcntl.h>
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#include <utmp.h>
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static int utmp_fd = -1;
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static struct utmp utmp_buf;
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/*
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* setutent - open or rewind the utmp file
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*/
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void
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setutent(void)
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{
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if (utmp_fd == -1)
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if ((utmp_fd = open (_UTMP_FILE, O_RDWR)) == -1)
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utmp_fd = open (_UTMP_FILE, O_RDONLY);
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if (utmp_fd != -1)
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lseek (utmp_fd, (off_t) 0L, SEEK_SET);
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}
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/*
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* endutent - close the utmp file
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*/
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void
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endutent(void)
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{
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if (utmp_fd != -1)
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close (utmp_fd);
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utmp_fd = -1;
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}
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/*
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* getutent - get the next record from the utmp file
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*/
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struct utmp *
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getutent(void)
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{
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if (utmp_fd == -1)
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setutent ();
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if (utmp_fd == -1)
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return 0;
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if (read (utmp_fd, &utmp_buf, sizeof utmp_buf) != sizeof utmp_buf)
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return 0;
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return &utmp_buf;
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}
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/*
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* getutline - get the utmp entry matching ut_line
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*/
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struct utmp *
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getutline(const struct utmp *utent)
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{
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struct utmp save;
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struct utmp *new;
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save = *utent;
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while (new = getutent ())
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if (strncmp (new->ut_line, save.ut_line, sizeof new->ut_line))
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continue;
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else
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return new;
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return (struct utmp *) 0;
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}
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#else
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extern int errno; /* warning: ANSI C forbids an empty source file */
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#endif
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