diff options
Diffstat (limited to 'crypto/kerberosIV/lib/krb/verify_user.c')
-rw-r--r-- | crypto/kerberosIV/lib/krb/verify_user.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/crypto/kerberosIV/lib/krb/verify_user.c b/crypto/kerberosIV/lib/krb/verify_user.c new file mode 100644 index 0000000..ce22b59 --- /dev/null +++ b/crypto/kerberosIV/lib/krb/verify_user.c @@ -0,0 +1,111 @@ +/* + * 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 "krb_locl.h" + +RCSID("$Id: verify_user.c,v 1.8 1997/04/01 08:18:46 joda Exp $"); + +/* Verify user with password. If secure, also verify against local + * service key, this can (usually) only be done by root. + * + * As a side effect, fresh tickets are obtained. + * + * Returns zero if ok, a positive kerberos error or -1 for system + * errors. + */ + +int +krb_verify_user(char *name, char *instance, char *realm, char *password, + int secure, char *linstance) +{ + int ret; + ret = krb_get_pw_in_tkt(name, instance, realm, + KRB_TICKET_GRANTING_TICKET, + realm, + DEFAULT_TKT_LIFE, password); + if(ret != KSUCCESS) + return ret; + + if(secure){ + struct hostent *hp; + int32_t addr; + + KTEXT_ST ticket; + AUTH_DAT auth; + + char lrealm[REALM_SZ]; + char hostname[MaxHostNameLen]; + char *phost; + + if (k_gethostname(hostname, sizeof(hostname)) == -1) { + dest_tkt(); + return -1; + } + + hp = gethostbyname(hostname); + if(hp == NULL){ + dest_tkt(); + return -1; + } + memcpy(&addr, hp->h_addr, sizeof(addr)); + + ret = krb_get_lrealm(lrealm, 1); + if(ret != KSUCCESS){ + dest_tkt(); + return ret; + } + phost = krb_get_phost(hostname); + + if (linstance == NULL) + linstance = "rcmd"; + + ret = krb_mk_req(&ticket, linstance, phost, lrealm, 33); + if(ret != KSUCCESS){ + dest_tkt(); + return ret; + } + + ret = krb_rd_req(&ticket, linstance, phost, addr, &auth, ""); + if(ret != KSUCCESS){ + dest_tkt(); + return ret; + } + } + return 0; +} + |