shadow/lib/lockpw.c

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/*
* Copyright 1992, Julianne Frances Haugh
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Julianne F. Haugh nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <config.h>
#ifndef HAVE_LCKPWDF
#include "rcsid.h"
RCSID("$Id: lockpw.c,v 1.4 1998/01/29 23:22:28 marekm Exp $")
#include "prototypes.h"
#include "defines.h"
#include "pwio.h"
#ifdef SHADOWPWD
#include "shadowio.h"
#endif
/*
* lckpwdf - lock the password files
*/
int
lckpwdf(void)
{
int i;
/*
* We have 15 seconds to lock the whole mess
*/
for (i = 0;i < 15;i++)
if (pw_lock ())
break;
else
sleep (1);
/*
* Did we run out of time?
*/
if (i == 15)
return -1;
/*
* Nope, use any remaining time to lock the shadow password
* file.
*/
for (;i < 15;i++)
if (spw_lock ())
break;
else
sleep (1);
/*
* Out of time yet?
*/
if (i == 15) {
pw_unlock ();
return -1;
}
/*
* Nope - and both files are now locked.
*/
return 0;
}
/*
* ulckpwdf - unlock the password files
*/
int
ulckpwdf(void)
{
/*
* Unlock both files.
*/
return (pw_unlock () && spw_unlock ()) ? 0:-1;
}
#else
extern int errno; /* warning: ANSI C forbids an empty source file */
#endif