lib/libgssapi/gss_add_oid_set_member.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 OM_uint32
  35 gss_add_oid_set_member(OM_uint32 *minor_status,
  36     const gss_OID member_oid,
  37     gss_OID_set *oid_set)
  38 {
  39         OM_uint32 major_status;
  40         gss_OID_set set = *oid_set;
  41         gss_OID new_elements;
  42         gss_OID new_oid;
  43         int t;
  44
  45         *minor_status = 0;
  46
  47         major_status = gss_test_oid_set_member(minor_status,
  48             member_oid, *oid_set, &t);
  49         if (major_status)
  50                 return (major_status);
  51         if (t)
  52                 return (GSS_S_COMPLETE);
  53
  54         new_elements = malloc((set->count + 1) * sizeof(gss_OID_desc));
  55         if (!new_elements) {
  56                 *minor_status = ENOMEM;
  57                 return (GSS_S_FAILURE);
  58         }
  59
  60         new_oid = &new_elements[set->count];
  61         new_oid->elements = malloc(member_oid->length);
  62         if (!new_oid->elements) {
  63                 free(new_elements);
  64                 return (GSS_S_FAILURE);
  65         }
  66         new_oid->length = member_oid->length;
  67         memcpy(new_oid->elements, member_oid->elements, member_oid->length);
  68
  69         if (set->elements) {
  70                 memcpy(new_elements, set->elements,
  71                     set->count * sizeof(gss_OID_desc));
  72                 free(set->elements);
  73         }
  74         set->elements = new_elements;
  75         set->count++;
  76
  77         return (GSS_S_COMPLETE);
  78 }