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 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 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 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