1 /* ccapi/lib/ccapi_credentials.c */ 2 /* 3 * Copyright 2006 Massachusetts Institute of Technology. 4 * All Rights Reserved. 5 * 6 * Export of this software from the United States of America may 7 * require a specific license from the United States Government. 8 * It is the responsibility of any person or organization contemplating 9 * export to obtain such a license before exporting. 10 * 11 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and 12 * distribute this software and its documentation for any purpose and 13 * without fee is hereby granted, provided that the above copyright 14 * notice appear in all copies and that both that copyright notice and 15 * this permission notice appear in supporting documentation, and that 16 * the name of M.I.T. not be used in advertising or publicity pertaining 17 * to distribution of the software without specific, written prior 18 * permission. Furthermore if you modify this software you must label 19 * your software as modified software and not distribute it in such a 20 * fashion that it might be confused with the original M.I.T. software. 21 * M.I.T. makes no representations about the suitability of 22 * this software for any purpose. It is provided "as is" without express 23 * or implied warranty. 24 */ 25 26 #include "ccapi_credentials.h" 27 28 #include "ccapi_string.h" 29 30 /* ------------------------------------------------------------------------ */ 31 32 typedef struct cci_credentials_d { 33 cc_credentials_union *data; 34 cc_credentials_f *functions; 35 #if TARGET_OS_MAC 36 cc_credentials_f *vector_functions; 37 #endif 38 cci_identifier_t identifier; 39 } *cci_credentials_t; 40 41 /* ------------------------------------------------------------------------ */ 42 43 struct cci_credentials_d cci_credentials_initializer = { 44 NULL, 45 NULL 46 VECTOR_FUNCTIONS_INITIALIZER, 47 NULL 48 }; 49 50 cc_credentials_f cci_credentials_f_initializer = { 51 ccapi_credentials_release, 52 ccapi_credentials_compare 53 }; 54 55 cc_credentials_union cci_credentials_union_initializer = { 56 0, 57 { NULL } 58 }; 59 60 /* ------------------------------------------------------------------------ */ 61 62 cc_int32 cci_credentials_read (cc_credentials_t *out_credentials, 63 k5_ipc_stream in_stream) 64 { 65 cc_int32 err = ccNoError; 66 cci_credentials_t credentials = NULL; 67 68 if (!out_credentials) { err = cci_check_error (ccErrBadParam); } 69 if (!in_stream ) { err = cci_check_error (ccErrBadParam); } 70 71 if (!err) { 72 credentials = malloc (sizeof (*credentials)); 73 if (credentials) { 74 *credentials = cci_credentials_initializer; 75 } else { 76 err = cci_check_error (ccErrNoMem); 77 } 78 } 79 80 if (!err) { 81 credentials->functions = malloc (sizeof (*credentials->functions)); 82 if (credentials->functions) { 83 *credentials->functions = cci_credentials_f_initializer; 84 } else { 85 err = cci_check_error (ccErrNoMem); 86 } 87 } 88 89 if (!err) { 90 err = cci_identifier_read (&credentials->identifier, in_stream); 91 } 92 93 if (!err) { 94 err = cci_credentials_union_read (&credentials->data, in_stream); 95 } 96 97 if (!err) { 98 *out_credentials = (cc_credentials_t) credentials; 99 credentials = NULL; /* take ownership */ 100 } 101 102 if (credentials) { ccapi_credentials_release ((cc_credentials_t) credentials); } 103 104 return cci_check_error (err); 105 } 106 107 /* ------------------------------------------------------------------------ */ 108 109 cc_int32 cci_credentials_write (cc_credentials_t in_credentials, 110 k5_ipc_stream in_stream) 111 { 112 cc_int32 err = ccNoError; 113 cci_credentials_t credentials = (cci_credentials_t) in_credentials; 114 115 if (!in_credentials) { err = cci_check_error (ccErrBadParam); } 116 if (!in_stream ) { err = cci_check_error (ccErrBadParam); } 117 118 if (!err) { 119 err = cci_identifier_write (credentials->identifier, in_stream); 120 } 121 122 return cci_check_error (err); 123 } 124 125 /* ------------------------------------------------------------------------ */ 126 127 cc_int32 ccapi_credentials_compare (cc_credentials_t in_credentials, 128 cc_credentials_t in_compare_to_credentials, 129 cc_uint32 *out_equal) 130 { 131 cc_int32 err = ccNoError; 132 cci_credentials_t credentials = (cci_credentials_t) in_credentials; 133 cci_credentials_t compare_to_credentials = (cci_credentials_t) in_compare_to_credentials; 134 135 if (!in_credentials ) { err = cci_check_error (ccErrBadParam); } 136 if (!in_compare_to_credentials) { err = cci_check_error (ccErrBadParam); } 137 if (!out_equal ) { err = cci_check_error (ccErrBadParam); } 138 139 if (!err) { 140 err = cci_identifier_compare (credentials->identifier, 141 compare_to_credentials->identifier, 142 out_equal); 143 } 144 145 return cci_check_error (err); 146 } 147 148 /* ------------------------------------------------------------------------ */ 149 150 cc_int32 ccapi_credentials_release (cc_credentials_t io_credentials) 151 { 152 cc_int32 err = ccNoError; 153 cci_credentials_t credentials = (cci_credentials_t) io_credentials; 154 155 if (!io_credentials) { err = ccErrBadParam; } 156 157 if (!err) { 158 cci_credentials_union_release (credentials->data); 159 free ((char *) credentials->functions); 160 cci_identifier_release (credentials->identifier); 161 free (credentials); 162 } 163 164 return err; 165 } 166