112 lines
3.3 KiB
C
112 lines
3.3 KiB
C
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/*
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* Copyright (c) 1995, 1996, 1997 Kungliga Tekniska H<EFBFBD>gskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Kungliga Tekniska
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* H<EFBFBD>gskolan and its contributors.
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*
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* 4. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "krb_locl.h"
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RCSID("$Id: verify_user.c,v 1.8 1997/04/01 08:18:46 joda Exp $");
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/* Verify user with password. If secure, also verify against local
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* service key, this can (usually) only be done by root.
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*
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* As a side effect, fresh tickets are obtained.
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*
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* Returns zero if ok, a positive kerberos error or -1 for system
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* errors.
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*/
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int
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krb_verify_user(char *name, char *instance, char *realm, char *password,
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int secure, char *linstance)
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{
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int ret;
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ret = krb_get_pw_in_tkt(name, instance, realm,
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KRB_TICKET_GRANTING_TICKET,
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realm,
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DEFAULT_TKT_LIFE, password);
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if(ret != KSUCCESS)
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return ret;
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if(secure){
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struct hostent *hp;
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int32_t addr;
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KTEXT_ST ticket;
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AUTH_DAT auth;
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char lrealm[REALM_SZ];
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char hostname[MaxHostNameLen];
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char *phost;
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if (k_gethostname(hostname, sizeof(hostname)) == -1) {
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dest_tkt();
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return -1;
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}
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hp = gethostbyname(hostname);
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if(hp == NULL){
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dest_tkt();
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return -1;
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}
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memcpy(&addr, hp->h_addr, sizeof(addr));
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ret = krb_get_lrealm(lrealm, 1);
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if(ret != KSUCCESS){
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dest_tkt();
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return ret;
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}
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phost = krb_get_phost(hostname);
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if (linstance == NULL)
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linstance = "rcmd";
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ret = krb_mk_req(&ticket, linstance, phost, lrealm, 33);
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if(ret != KSUCCESS){
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dest_tkt();
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return ret;
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}
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ret = krb_rd_req(&ticket, linstance, phost, addr, &auth, "");
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if(ret != KSUCCESS){
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dest_tkt();
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return ret;
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}
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}
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return 0;
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}
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