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 /* $FreeBSD$ */ 33 34 #include <gssapi/gssapi.h> 35 #include <errno.h> 36 #include <stdlib.h> 37 #include <string.h> 38 39 /* RCSID("$Id: gss_buffer_set.c 18885 2006-10-24 21:53:02Z lha $"); */ 40 41 OM_uint32 42 gss_create_empty_buffer_set(OM_uint32 * minor_status, 43 gss_buffer_set_t *buffer_set) 44 { 45 gss_buffer_set_t set; 46 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); 51 } 52 53 set->count = 0; 54 set->elements = NULL; 55 56 *buffer_set = set; 57 58 *minor_status = 0; 59 return (GSS_S_COMPLETE); 60 } 61 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) 65 { 66 gss_buffer_set_t set; 67 gss_buffer_t p; 68 OM_uint32 ret; 69 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); 75 } 76 } 77 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); 84 } 85 86 p = &set->elements[set->count]; 87 88 p->value = malloc(member_buffer->length); 89 if (p->value == NULL) { 90 *minor_status = ENOMEM; 91 return (GSS_S_FAILURE); 92 } 93 memcpy(p->value, member_buffer->value, member_buffer->length); 94 p->length = member_buffer->length; 95 96 set->count++; 97 98 *minor_status = 0; 99 return (GSS_S_COMPLETE); 100 } 101 102 OM_uint32 103 gss_release_buffer_set(OM_uint32 * minor_status, 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