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/* $OpenBSD: pw_check.c,v 1.1 1997/12/15 17:56:23 art Exp $ */
/* $KTH: pw_check.c,v 1.13 1997/04/01 08:17:50 joda Exp $ */
/*
* Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the Kungliga Tekniska
* Högskolan and its contributors.
*
* 4. Neither the name of the Institute 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 THE INSTITUTE 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 THE INSTITUTE 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 "kadm_locl.h"
/*
* kadm_pw_check
*
* pw : new password or "" if none passed
* newkey : key for pw as passed from client
* strings : interesting strings to check for
*
* returns NULL if pw is ok, else an explanatory string
*/
int
kadm_pw_check(char *pw, des_cblock *newkey, char **pw_msg,
char **strings)
{
des_cblock pwkey;
int status=KADM_SUCCESS;
if (pw == NULL || *pw == '\0')
return status; /* XXX - Change this later */
#ifndef NO_PW_CHECK
*pw_msg = NULL;
des_string_to_key(pw, &pwkey); /* Check AFS string to key also! */
if (memcmp(pwkey, *newkey, sizeof(pwkey)) != 0)
{
/* no password or bad key */
status=KADM_PW_MISMATCH;
*pw_msg = "Password doesn't match supplied DES key";
}
else if (strlen(pw) < MIN_KPW_LEN)
{
status = KADM_INSECURE_PW;
*pw_msg="Password is too short";
}
#ifdef DICTPATH
*pw_msg = FascistCheck(pw, DICTPATH, strings);
if (*pw_msg)
return KADM_INSECURE_PW;
#endif
memset(pwkey, 0, sizeof(pwkey));
#endif
return status;
}
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