1 /* $NetBSD: gss_buffer_set.c,v 1.1.1.2 2014/04/24 12:45:29 pettai Exp $ */
2
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 "mech_locl.h"
36
37 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_create_empty_buffer_set(OM_uint32 * minor_status,gss_buffer_set_t * buffer_set)38 gss_create_empty_buffer_set
39 (OM_uint32 * minor_status,
40 gss_buffer_set_t *buffer_set)
41 {
42 gss_buffer_set_t set;
43
44 set = (gss_buffer_set_desc *) malloc(sizeof(*set));
45 if (set == GSS_C_NO_BUFFER_SET) {
46 *minor_status = ENOMEM;
47 return GSS_S_FAILURE;
48 }
49
50 set->count = 0;
51 set->elements = NULL;
52
53 *buffer_set = set;
54
55 *minor_status = 0;
56 return GSS_S_COMPLETE;
57 }
58
59 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_add_buffer_set_member(OM_uint32 * minor_status,const gss_buffer_t member_buffer,gss_buffer_set_t * buffer_set)60 gss_add_buffer_set_member
61 (OM_uint32 * minor_status,
62 const gss_buffer_t member_buffer,
63 gss_buffer_set_t *buffer_set)
64 {
65 gss_buffer_set_t set;
66 gss_buffer_t p;
67 OM_uint32 ret;
68
69 if (*buffer_set == GSS_C_NO_BUFFER_SET) {
70 ret = gss_create_empty_buffer_set(minor_status,
71 buffer_set);
72 if (ret) {
73 return ret;
74 }
75 }
76
77 set = *buffer_set;
78 set->elements = realloc(set->elements,
79 (set->count + 1) * sizeof(set->elements[0]));
80 if (set->elements == NULL) {
81 *minor_status = ENOMEM;
82 return GSS_S_FAILURE;
83 }
84
85 p = &set->elements[set->count];
86
87 p->value = malloc(member_buffer->length);
88 if (p->value == NULL) {
89 *minor_status = ENOMEM;
90 return GSS_S_FAILURE;
91 }
92 memcpy(p->value, member_buffer->value, member_buffer->length);
93 p->length = member_buffer->length;
94
95 set->count++;
96
97 *minor_status = 0;
98 return GSS_S_COMPLETE;
99 }
100
101 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_release_buffer_set(OM_uint32 * minor_status,gss_buffer_set_t * buffer_set)102 gss_release_buffer_set(OM_uint32 * minor_status,
103 gss_buffer_set_t *buffer_set)
104 {
105 size_t i;
106 OM_uint32 minor;
107
108 *minor_status = 0;
109
110 if (*buffer_set == GSS_C_NO_BUFFER_SET)
111 return GSS_S_COMPLETE;
112
113 for (i = 0; i < (*buffer_set)->count; i++)
114 gss_release_buffer(&minor, &((*buffer_set)->elements[i]));
115
116 free((*buffer_set)->elements);
117
118 (*buffer_set)->elements = NULL;
119 (*buffer_set)->count = 0;
120
121 free(*buffer_set);
122 *buffer_set = GSS_C_NO_BUFFER_SET;
123
124 return GSS_S_COMPLETE;
125 }
126
127