/*
   SMArT

   Check username/password combination using PAM

   Copyright 2001 Wilmer van der Gaast

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

#include <security/pam_appl.h>
#include <stdio.h>

int my_conv(int num_msg, const struct pam_message **msg, struct pam_response **resp, void *appdata_ptr);

static struct pam_conv conv = {
	my_conv,
	NULL
};

char *user;
char *pass;

int main( int argc, char **argv )
{
	pam_handle_t *pamh;
	int retval, st = 1;

	user = argv[1];
	pass = argv[2];

	retval = pam_start( "smart", user, &conv, &pamh );
	if ( retval == PAM_SUCCESS )
		retval = pam_authenticate( pamh, PAM_SILENT );
	if ( retval == PAM_SUCCESS )
		st = retval = pam_acct_mgmt( pamh, PAM_SILENT );
	if ( pam_end( pamh, retval ) != PAM_SUCCESS )
		return( 1 );

	return( st != PAM_SUCCESS );
}

int my_conv(int num_msg, const struct pam_message **msg, struct pam_response **resp, void *appdata_ptr)
{
	struct pam_response *reply;
	int i;
	
	reply = (struct pam_response *) calloc( num_msg, sizeof( struct pam_response ) );
	for( i = 0; i < num_msg; i ++ )
	{
		reply[i].resp = (char *) strdup( pass );	/* Just give the password... It's all we know */
		reply[i].resp_retcode = 0;
	}
	*resp = reply;
	
	return( PAM_SUCCESS );
}