1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2004, PADL Software Pty Ltd.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * 3. Neither the name of PADL Software nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #include <gssapi/gssapi.h>
36 #include <errno.h>
37 #include <stdlib.h>
38 #include <string.h>
39
40 /* RCSID("$Id: gss_buffer_set.c 18885 2006-10-24 21:53:02Z lha $"); */
41
42 OM_uint32
gss_create_empty_buffer_set(OM_uint32 * minor_status,gss_buffer_set_t * buffer_set)43 gss_create_empty_buffer_set(OM_uint32 * minor_status,
44 gss_buffer_set_t *buffer_set)
45 {
46 gss_buffer_set_t set;
47
48 set = (gss_buffer_set_desc *) malloc(sizeof(*set));
49 if (set == GSS_C_NO_BUFFER_SET) {
50 *minor_status = ENOMEM;
51 return (GSS_S_FAILURE);
52 }
53
54 set->count = 0;
55 set->elements = NULL;
56
57 *buffer_set = set;
58
59 *minor_status = 0;
60 return (GSS_S_COMPLETE);
61 }
62
63 OM_uint32
gss_add_buffer_set_member(OM_uint32 * minor_status,const gss_buffer_t member_buffer,gss_buffer_set_t * buffer_set)64 gss_add_buffer_set_member(OM_uint32 * minor_status,
65 const gss_buffer_t member_buffer, gss_buffer_set_t *buffer_set)
66 {
67 gss_buffer_set_t set;
68 gss_buffer_t p;
69 OM_uint32 ret;
70
71 if (*buffer_set == GSS_C_NO_BUFFER_SET) {
72 ret = gss_create_empty_buffer_set(minor_status,
73 buffer_set);
74 if (ret) {
75 return (ret);
76 }
77 }
78
79 set = *buffer_set;
80 set->elements = reallocarray(set->elements, set->count + 1,
81 sizeof(set->elements[0]));
82 if (set->elements == NULL) {
83 *minor_status = ENOMEM;
84 return (GSS_S_FAILURE);
85 }
86
87 p = &set->elements[set->count];
88
89 p->value = malloc(member_buffer->length);
90 if (p->value == NULL) {
91 *minor_status = ENOMEM;
92 return (GSS_S_FAILURE);
93 }
94 memcpy(p->value, member_buffer->value, member_buffer->length);
95 p->length = member_buffer->length;
96
97 set->count++;
98
99 *minor_status = 0;
100 return (GSS_S_COMPLETE);
101 }
102
103 OM_uint32
gss_release_buffer_set(OM_uint32 * minor_status,gss_buffer_set_t * buffer_set)104 gss_release_buffer_set(OM_uint32 * minor_status, gss_buffer_set_t *buffer_set)
105 {
106 size_t i;
107 OM_uint32 minor;
108
109 *minor_status = 0;
110
111 if (*buffer_set == GSS_C_NO_BUFFER_SET)
112 return (GSS_S_COMPLETE);
113
114 for (i = 0; i < (*buffer_set)->count; i++)
115 gss_release_buffer(&minor, &((*buffer_set)->elements[i]));
116
117 free((*buffer_set)->elements);
118
119 (*buffer_set)->elements = NULL;
120 (*buffer_set)->count = 0;
121
122 free(*buffer_set);
123 *buffer_set = GSS_C_NO_BUFFER_SET;
124
125 return (GSS_S_COMPLETE);
126 }
127
128