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-rw-r--r--crypto/kerberosIV/lib/krb/mk_auth.c96
1 files changed, 96 insertions, 0 deletions
diff --git a/crypto/kerberosIV/lib/krb/mk_auth.c b/crypto/kerberosIV/lib/krb/mk_auth.c
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+++ b/crypto/kerberosIV/lib/krb/mk_auth.c
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+/*
+ * 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: mk_auth.c,v 1.4 1997/04/01 08:18:35 joda Exp $");
+
+/*
+ * Generate an authenticator for service.instance@realm.
+ * instance is canonicalized by `krb_get_phost'
+ * realm is set to the local realm if realm == NULL
+ * The ticket acquired by `krb_mk_req' is returned in `ticket' and the
+ * authenticator in `buf'.
+ * Options control the behaviour (see krb_sendauth).
+ */
+
+int
+krb_mk_auth(int32_t options,
+ KTEXT ticket,
+ char *service,
+ char *instance,
+ char *realm,
+ u_int32_t checksum,
+ char *version,
+ KTEXT buf)
+{
+ char realinst[INST_SZ];
+ char realrealm[REALM_SZ];
+ int ret;
+ unsigned char *p;
+
+ if (options & KOPT_DONT_CANON)
+ strncpy(realinst, instance, sizeof(realinst));
+ else
+ strncpy(realinst, krb_get_phost (instance), sizeof(realinst));
+
+ if (realm == NULL) {
+ ret = krb_get_lrealm (realrealm, 1);
+ if (ret != KSUCCESS)
+ return ret;
+ realm = realrealm;
+ }
+
+ if(!(options & KOPT_DONT_MK_REQ)) {
+ ret = krb_mk_req (ticket, service, realinst, realm, checksum);
+ if (ret != KSUCCESS)
+ return ret;
+ }
+
+ p = buf->dat;
+
+ memcpy (p, KRB_SENDAUTH_VERS, KRB_SENDAUTH_VLEN);
+ p += KRB_SENDAUTH_VLEN;
+ memcpy (p, version, KRB_SENDAUTH_VLEN);
+ p += KRB_SENDAUTH_VLEN;
+ p += krb_put_int(ticket->length, p, 4);
+ memcpy(p, ticket->dat, ticket->length);
+ p += ticket->length;
+ buf->length = p - buf->dat;
+ return KSUCCESS;
+}
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