lib/libgssapi/gss_display_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  *      $FreeBSD$
  27  */
  28
  29 #include <gssapi/gssapi.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <errno.h>
  33
  34 #include "mech_switch.h"
  35 #include "name.h"
  36 #include "utils.h"
  37
  38 OM_uint32
  39 gss_display_name(OM_uint32 *minor_status,
  40     const gss_name_t input_name,
  41     gss_buffer_t output_name_buffer,
  42     gss_OID *output_name_type)
  43 {
  44         OM_uint32 major_status;
  45         struct _gss_name *name = (struct _gss_name *) input_name;
  46         struct _gss_mechanism_name *mn;
  47
  48         _gss_buffer_zero(output_name_buffer);
  49         if (output_name_type)
  50                 *output_name_type = GSS_C_NO_OID;
  51
  52         if (name == NULL) {
  53                 *minor_status = 0;
  54                 return (GSS_S_BAD_NAME);
  55         }
  56
  57         /*
  58          * If we know it, copy the buffer used to import the name in
  59          * the first place. Otherwise, ask all the MNs in turn if
  60          * they can display the thing.
  61          */
  62         if (name->gn_value.value) {
  63                 output_name_buffer->value = malloc(name->gn_value.length);
  64                 if (!output_name_buffer->value) {
  65                         *minor_status = ENOMEM;
  66                         return (GSS_S_FAILURE);
  67                 }
  68                 output_name_buffer->length = name->gn_value.length;
  69                 memcpy(output_name_buffer->value, name->gn_value.value,
  70                     output_name_buffer->length);
  71                 if (output_name_type)
  72                         *output_name_type = &name->gn_type;
  73
  74                 *minor_status = 0;
  75                 return (GSS_S_COMPLETE);
  76         } else {
  77                 SLIST_FOREACH(mn, &name->gn_mn, gmn_link) {
  78                         major_status = mn->gmn_mech->gm_display_name(
  79                                 minor_status, mn->gmn_name,
  80                                 output_name_buffer,
  81                                 output_name_type);
  82                         if (major_status == GSS_S_COMPLETE)
  83                                 return (GSS_S_COMPLETE);
  84                 }
  85         }
  86
  87         *minor_status = 0;
  88         return (GSS_S_FAILURE);
  89 }