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 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 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 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