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ncpfs/contrib/pam/support.c
ncpfs archive import b48389be22 Import ncpfs 2.2.5
2026-04-28 20:40:00 +02:00

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/*
* $Header: /home/morgan/pam/Linux-PAM-0.53/modules/pam_unix/RCS/support.c,v 1.1 1996/11/09 19:44:35 morgan Exp $
*/
/*
* Copyright Andrew Morgan, 1996. All rights reserved.
* Modified by Alexander O. Yuriev
*
* 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, and the entire permission notice in its entirety,
* including the disclaimer of warranties.
* 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. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* ALTERNATIVELY, this product may be distributed under the terms of
* the GNU Public License, in which case the provisions of the GPL are
* required INSTEAD OF the above restrictions. (This clause is
* necessary due to a potential bad interaction between the GPL and
* the restrictions contained in a BSD-style copyright.)
*
* THIS SOFTWARE IS PROVIDED ``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 THE AUTHOR 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.
*/
/*
* $Log: support.c,v $
*
* Revision 1.2 2000/06/02 17:40:00 vana
* Added support functions for chautok.
*
* Revision 1.1 1996/11/09 19:44:35 morgan
* Initial revision
*
* Revision 1.1 1996/04/17 01:11:08 alex
* Initial revision
*
*/
#include <stdlib.h> /* define NULL */
#include <string.h>
#include "support.h"
#ifndef NDEBUG
# include <syslog.h>
#endif /* NDEBUG */
/* Implementation */
static int converse( pam_handle_t *pamh,
int nargs,
struct pam_message **message,
struct pam_response **response )
{
int retval;
struct pam_conv *conv;
retval = my_pam_get_item(pamh, PAM_CONV, &conv);
if ( retval == PAM_SUCCESS )
{
retval = conv->conv( nargs,
( const struct pam_message ** ) message,
response,
conv->appdata_ptr );
}
return retval;
}
/***************************************************************************/
/* prompt user for a using conversation calls */
/***************************************************************************/
int _set_auth_tok(pam_handle_t *pamh, int flags) {
int retval;
char *p;
struct pam_message msg[1],*pmsg[1];
struct pam_response *resp;
/* set up conversation call */
pmsg[0] = &msg[0];
msg[0].msg_style = PAM_PROMPT_ECHO_OFF;
msg[0].msg = "Password: ";
resp = NULL;
if ( ( retval = converse( pamh, 1 , pmsg, &resp ) ) != PAM_SUCCESS )
return retval;
if ( resp )
{
if ( ( flags & PAM_DISALLOW_NULL_AUTHTOK ) &&
resp[0].resp == NULL )
{
free( resp );
return PAM_AUTH_ERR;
}
p = resp[ 0 ].resp;
/* This could be a memory leak. If resp[0].resp
is malloc()ed, then it has to be free()ed!
-- alex
*/
resp[ 0 ].resp = NULL;
}
else
return PAM_CONV_ERR;
free( resp );
pam_set_item( pamh, PAM_AUTHTOK, p );
return PAM_SUCCESS;
}
int _read_new_pwd(pam_handle_t *pamh, int flags)
{
int retval;
char *p;
char *q;
struct pam_message msg[1],*pmsg[1];
struct pam_message msg2[1],*pmsg2[1];
struct pam_response *resp;
/* set up conversation call */
pmsg[0] = &msg[0];
msg[0].msg_style = PAM_PROMPT_ECHO_OFF;
msg[0].msg = "New Password: ";
resp = NULL;
if ( ( retval = converse( pamh, 1 , pmsg, &resp ) ) != PAM_SUCCESS )
return retval;
if ( resp )
{
if ( ( flags & PAM_DISALLOW_NULL_AUTHTOK ) &&
resp[0].resp == NULL )
{
free( resp );
return PAM_AUTH_ERR;
}
p = resp[ 0 ].resp;
/* This could be a memory leak. If resp[0].resp
is malloc()ed, then it has to be free()ed!
-- alex
*/
resp[ 0 ].resp = NULL;
}
else
return PAM_CONV_ERR;
free( resp );
pmsg2[0] = &msg2[0];
msg2[0].msg_style = PAM_PROMPT_ECHO_OFF;
msg2[0].msg = "Retype New Password: ";
resp = NULL;
if ( ( retval = converse( pamh, 1 , pmsg2, &resp ) ) != PAM_SUCCESS )
return retval;
if ( resp )
{
if ( ( flags & PAM_DISALLOW_NULL_AUTHTOK ) &&
resp[0].resp == NULL )
{
free( resp );
return PAM_AUTH_ERR;
}
q = resp[ 0 ].resp;
/* This could be a memory leak. If resp[0].resp
is malloc()ed, then it has to be free()ed!
-- alex
*/
resp[ 0 ].resp = NULL;
}
else
return PAM_CONV_ERR;
free( resp );
if (strcmp(p, q)) {
pmsg2[0] = &msg2[0];
msg2[0].msg_style = PAM_ERROR_MSG;
msg2[0].msg = "Passwords do not match!";
resp = NULL;
retval = converse( pamh, 1, pmsg2, &resp);
if ((retval != PAM_SUCCESS) && resp)
free(resp);
return PAM_AUTHTOK_ERR;
}
pam_set_item( pamh, PAM_AUTHTOK, p );
return PAM_SUCCESS;
}
int _set_oldauth_tok(pam_handle_t *pamh, int flags) {
int retval;
char *p;
struct pam_message msg[1],*pmsg[1];
struct pam_response *resp;
/* set up conversation call */
pmsg[0] = &msg[0];
msg[0].msg_style = PAM_PROMPT_ECHO_OFF;
msg[0].msg = "(current) NetWare password: ";
resp = NULL;
if ( ( retval = converse( pamh, 1 , pmsg, &resp ) ) != PAM_SUCCESS )
return retval;
if ( resp )
{
if ( ( flags & PAM_DISALLOW_NULL_AUTHTOK ) &&
resp[0].resp == NULL )
{
free( resp );
return PAM_AUTH_ERR;
}
p = resp[ 0 ].resp;
/* This could be a memory leak. If resp[0].resp
is malloc()ed, then it has to be free()ed!
-- alex
*/
resp[ 0 ].resp = NULL;
}
else
return PAM_CONV_ERR;
free( resp );
pam_set_item( pamh, PAM_OLDAUTHTOK, p );
return PAM_SUCCESS;
}
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