lib/gssapi/mech/gss_compare_name.c

   1 /*-
   2  * Copyright (c) 2005 Doug Rabson
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  *      $FreeBSD: src/lib/libgssapi/gss_compare_name.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
  27  */
  28
  29 #include "mech_locl.h"
  30
  31 OM_uint32 GSSAPI_LIB_FUNCTION
  32 gss_compare_name(OM_uint32 *minor_status,
  33     const gss_name_t name1_arg,
  34     const gss_name_t name2_arg,
  35     int *name_equal)
  36 {
  37         struct _gss_name *name1 = (struct _gss_name *) name1_arg;
  38         struct _gss_name *name2 = (struct _gss_name *) name2_arg;
  39
  40         /*
  41          * First check the implementation-independant name if both
  42          * names have one. Otherwise, try to find common mechanism
  43          * names and compare them.
  44          */
  45         if (name1->gn_value.value && name2->gn_value.value) {
  46                 *name_equal = 1;
  47                 if (!gss_oid_equal(&name1->gn_type, &name2->gn_type)) {
  48                         *name_equal = 0;
  49                 } else if (name1->gn_value.length != name2->gn_value.length ||
  50                     memcmp(name1->gn_value.value, name1->gn_value.value,
  51                         name1->gn_value.length)) {
  52                         *name_equal = 0;
  53                 }
  54         } else {
  55                 struct _gss_mechanism_name *mn1;
  56                 struct _gss_mechanism_name *mn2;
  57
  58                 SLIST_FOREACH(mn1, &name1->gn_mn, gmn_link) {
  59                         OM_uint32 major_status;
  60
  61                         major_status = _gss_find_mn(minor_status, name2,
  62                                                     mn1->gmn_mech_oid, &mn2);
  63                         if (major_status == GSS_S_COMPLETE) {
  64                                 return (mn1->gmn_mech->gm_compare_name(
  65                                                 minor_status,
  66                                                 mn1->gmn_name,
  67                                                 mn2->gmn_name,
  68                                                 name_equal));
  69                         }
  70                 }
  71                 *name_equal = 0;
  72         }
  73
  74         *minor_status = 0;
  75         return (GSS_S_COMPLETE);
  76 }