1 /*
2 * Copyright (c) 2004, PADL Software Pty Ltd.
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 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
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.
15 *
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.
19 *
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.
31 */
32
33 #include "mech_locl.h"
34
35 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_create_empty_buffer_set(OM_uint32 * minor_status,gss_buffer_set_t * buffer_set)36 gss_create_empty_buffer_set
37 (OM_uint32 * minor_status,
38 gss_buffer_set_t *buffer_set)
39 {
40 gss_buffer_set_t set;
41
42 set = (gss_buffer_set_desc *) malloc(sizeof(*set));
43 if (set == GSS_C_NO_BUFFER_SET) {
44 *minor_status = ENOMEM;
45 return GSS_S_FAILURE;
46 }
47
48 set->count = 0;
49 set->elements = NULL;
50
51 *buffer_set = set;
52
53 *minor_status = 0;
54 return GSS_S_COMPLETE;
55 }
56
57 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)58 gss_add_buffer_set_member
59 (OM_uint32 * minor_status,
60 const gss_buffer_t member_buffer,
61 gss_buffer_set_t *buffer_set)
62 {
63 gss_buffer_set_t set;
64 gss_buffer_t p;
65 OM_uint32 ret;
66
67 if (*buffer_set == GSS_C_NO_BUFFER_SET) {
68 ret = gss_create_empty_buffer_set(minor_status,
69 buffer_set);
70 if (ret) {
71 return ret;
72 }
73 }
74
75 set = *buffer_set;
76 set->elements = realloc(set->elements,
77 (set->count + 1) * sizeof(set->elements[0]));
78 if (set->elements == NULL) {
79 *minor_status = ENOMEM;
80 return GSS_S_FAILURE;
81 }
82
83 p = &set->elements[set->count];
84
85 p->value = malloc(member_buffer->length);
86 if (p->value == NULL) {
87 *minor_status = ENOMEM;
88 return GSS_S_FAILURE;
89 }
90 memcpy(p->value, member_buffer->value, member_buffer->length);
91 p->length = member_buffer->length;
92
93 set->count++;
94
95 *minor_status = 0;
96 return GSS_S_COMPLETE;
97 }
98
99 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_release_buffer_set(OM_uint32 * minor_status,gss_buffer_set_t * buffer_set)100 gss_release_buffer_set(OM_uint32 * minor_status,
101 gss_buffer_set_t *buffer_set)
102 {
103 size_t i;
104 OM_uint32 minor;
105
106 *minor_status = 0;
107
108 if (*buffer_set == GSS_C_NO_BUFFER_SET)
109 return GSS_S_COMPLETE;
110
111 for (i = 0; i < (*buffer_set)->count; i++)
112 gss_release_buffer(&minor, &((*buffer_set)->elements[i]));
113
114 free((*buffer_set)->elements);
115
116 (*buffer_set)->elements = NULL;
117 (*buffer_set)->count = 0;
118
119 free(*buffer_set);
120 *buffer_set = GSS_C_NO_BUFFER_SET;
121
122 return GSS_S_COMPLETE;
123 }
124
125