new way of modifying gdt
[freebsd-src/fkvm-freebsd.git] / lib / libgssapi / gss_buffer_set.c
blobaf62e5c295960b7fc931967bd6170055466370fb
1 /*
2 * Copyright (c) 2004, PADL Software Pty Ltd.
3 * All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of PADL Software nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
32 /* $FreeBSD$ */
34 #include <gssapi/gssapi.h>
35 #include <errno.h>
36 #include <stdlib.h>
37 #include <string.h>
39 /* RCSID("$Id: gss_buffer_set.c 18885 2006-10-24 21:53:02Z lha $"); */
41 OM_uint32
42 gss_create_empty_buffer_set(OM_uint32 * minor_status,
43 gss_buffer_set_t *buffer_set)
45 gss_buffer_set_t set;
47 set = (gss_buffer_set_desc *) malloc(sizeof(*set));
48 if (set == GSS_C_NO_BUFFER_SET) {
49 *minor_status = ENOMEM;
50 return (GSS_S_FAILURE);
53 set->count = 0;
54 set->elements = NULL;
56 *buffer_set = set;
58 *minor_status = 0;
59 return (GSS_S_COMPLETE);
62 OM_uint32
63 gss_add_buffer_set_member(OM_uint32 * minor_status,
64 const gss_buffer_t member_buffer, gss_buffer_set_t *buffer_set)
66 gss_buffer_set_t set;
67 gss_buffer_t p;
68 OM_uint32 ret;
70 if (*buffer_set == GSS_C_NO_BUFFER_SET) {
71 ret = gss_create_empty_buffer_set(minor_status,
72 buffer_set);
73 if (ret) {
74 return (ret);
78 set = *buffer_set;
79 set->elements = realloc(set->elements,
80 (set->count + 1) * sizeof(set->elements[0]));
81 if (set->elements == NULL) {
82 *minor_status = ENOMEM;
83 return (GSS_S_FAILURE);
86 p = &set->elements[set->count];
88 p->value = malloc(member_buffer->length);
89 if (p->value == NULL) {
90 *minor_status = ENOMEM;
91 return (GSS_S_FAILURE);
93 memcpy(p->value, member_buffer->value, member_buffer->length);
94 p->length = member_buffer->length;
96 set->count++;
98 *minor_status = 0;
99 return (GSS_S_COMPLETE);
102 OM_uint32
103 gss_release_buffer_set(OM_uint32 * minor_status, gss_buffer_set_t *buffer_set)
105 size_t i;
106 OM_uint32 minor;
108 *minor_status = 0;
110 if (*buffer_set == GSS_C_NO_BUFFER_SET)
111 return (GSS_S_COMPLETE);
113 for (i = 0; i < (*buffer_set)->count; i++)
114 gss_release_buffer(&minor, &((*buffer_set)->elements[i]));
116 free((*buffer_set)->elements);
118 (*buffer_set)->elements = NULL;
119 (*buffer_set)->count = 0;
121 free(*buffer_set);
122 *buffer_set = GSS_C_NO_BUFFER_SET;
124 return (GSS_S_COMPLETE);