Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | /* crypto/err/err.c */ |
| 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * This package is an SSL implementation written |
| 6 | * by Eric Young (eay@cryptsoft.com). |
| 7 | * The implementation was written so as to conform with Netscapes SSL. |
| 8 | * |
| 9 | * This library is free for commercial and non-commercial use as long as |
| 10 | * the following conditions are aheared to. The following conditions |
| 11 | * apply to all code found in this distribution, be it the RC4, RSA, |
| 12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
| 13 | * included with this distribution is covered by the same copyright terms |
| 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
| 15 | * |
| 16 | * Copyright remains Eric Young's, and as such any Copyright notices in |
| 17 | * the code are not to be removed. |
| 18 | * If this package is used in a product, Eric Young should be given attribution |
| 19 | * as the author of the parts of the library used. |
| 20 | * This can be in the form of a textual message at program startup or |
| 21 | * in documentation (online or textual) provided with the package. |
| 22 | * |
| 23 | * Redistribution and use in source and binary forms, with or without |
| 24 | * modification, are permitted provided that the following conditions |
| 25 | * are met: |
| 26 | * 1. Redistributions of source code must retain the copyright |
| 27 | * notice, this list of conditions and the following disclaimer. |
| 28 | * 2. Redistributions in binary form must reproduce the above copyright |
| 29 | * notice, this list of conditions and the following disclaimer in the |
| 30 | * documentation and/or other materials provided with the distribution. |
| 31 | * 3. All advertising materials mentioning features or use of this software |
| 32 | * must display the following acknowledgement: |
| 33 | * "This product includes cryptographic software written by |
| 34 | * Eric Young (eay@cryptsoft.com)" |
| 35 | * The word 'cryptographic' can be left out if the rouines from the library |
| 36 | * being used are not cryptographic related :-). |
| 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
| 38 | * the apps directory (application code) you must include an acknowledgement: |
| 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
| 40 | * |
| 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
| 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 51 | * SUCH DAMAGE. |
| 52 | * |
| 53 | * The licence and distribution terms for any publically available version or |
| 54 | * derivative of this code cannot be changed. i.e. this code cannot simply be |
| 55 | * copied and put under another distribution licence |
| 56 | * [including the GNU Public Licence.] |
| 57 | */ |
| 58 | /* ==================================================================== |
| 59 | * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. |
| 60 | * |
| 61 | * Redistribution and use in source and binary forms, with or without |
| 62 | * modification, are permitted provided that the following conditions |
| 63 | * are met: |
| 64 | * |
| 65 | * 1. Redistributions of source code must retain the above copyright |
| 66 | * notice, this list of conditions and the following disclaimer. |
| 67 | * |
| 68 | * 2. Redistributions in binary form must reproduce the above copyright |
| 69 | * notice, this list of conditions and the following disclaimer in |
| 70 | * the documentation and/or other materials provided with the |
| 71 | * distribution. |
| 72 | * |
| 73 | * 3. All advertising materials mentioning features or use of this |
| 74 | * software must display the following acknowledgment: |
| 75 | * "This product includes software developed by the OpenSSL Project |
| 76 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
| 77 | * |
| 78 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| 79 | * endorse or promote products derived from this software without |
| 80 | * prior written permission. For written permission, please contact |
| 81 | * openssl-core@openssl.org. |
| 82 | * |
| 83 | * 5. Products derived from this software may not be called "OpenSSL" |
| 84 | * nor may "OpenSSL" appear in their names without prior written |
| 85 | * permission of the OpenSSL Project. |
| 86 | * |
| 87 | * 6. Redistributions of any form whatsoever must retain the following |
| 88 | * acknowledgment: |
| 89 | * "This product includes software developed by the OpenSSL Project |
| 90 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
| 91 | * |
| 92 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| 93 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 94 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 95 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| 96 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 97 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 98 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 99 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 100 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 101 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 102 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| 103 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
| 104 | * ==================================================================== |
| 105 | * |
| 106 | * This product includes cryptographic software written by Eric Young |
| 107 | * (eay@cryptsoft.com). This product includes software written by Tim |
| 108 | * Hudson (tjh@cryptsoft.com). |
| 109 | * |
| 110 | */ |
| 111 | |
| 112 | #include <stdio.h> |
| 113 | #include <stdarg.h> |
| 114 | #include <string.h> |
| 115 | #include "cryptlib.h" |
| 116 | #include <openssl/lhash.h> |
| 117 | #include <openssl/crypto.h> |
| 118 | #include <openssl/buffer.h> |
| 119 | #include <openssl/bio.h> |
| 120 | #include <openssl/err.h> |
| 121 | |
| 122 | DECLARE_LHASH_OF(ERR_STRING_DATA); |
| 123 | DECLARE_LHASH_OF(ERR_STATE); |
| 124 | |
| 125 | static void err_load_strings(int lib, ERR_STRING_DATA *str); |
| 126 | |
| 127 | static void ERR_STATE_free(ERR_STATE *s); |
| 128 | #ifndef OPENSSL_NO_ERR |
| 129 | static ERR_STRING_DATA ERR_str_libraries[]= |
| 130 | { |
| 131 | {ERR_PACK(ERR_LIB_NONE,0,0) ,"unknown library"}, |
| 132 | {ERR_PACK(ERR_LIB_SYS,0,0) ,"system library"}, |
| 133 | {ERR_PACK(ERR_LIB_BN,0,0) ,"bignum routines"}, |
| 134 | {ERR_PACK(ERR_LIB_RSA,0,0) ,"rsa routines"}, |
| 135 | {ERR_PACK(ERR_LIB_DH,0,0) ,"Diffie-Hellman routines"}, |
| 136 | {ERR_PACK(ERR_LIB_EVP,0,0) ,"digital envelope routines"}, |
| 137 | {ERR_PACK(ERR_LIB_BUF,0,0) ,"memory buffer routines"}, |
| 138 | {ERR_PACK(ERR_LIB_OBJ,0,0) ,"object identifier routines"}, |
| 139 | {ERR_PACK(ERR_LIB_PEM,0,0) ,"PEM routines"}, |
| 140 | {ERR_PACK(ERR_LIB_DSA,0,0) ,"dsa routines"}, |
| 141 | {ERR_PACK(ERR_LIB_X509,0,0) ,"x509 certificate routines"}, |
| 142 | {ERR_PACK(ERR_LIB_ASN1,0,0) ,"asn1 encoding routines"}, |
| 143 | {ERR_PACK(ERR_LIB_CONF,0,0) ,"configuration file routines"}, |
| 144 | {ERR_PACK(ERR_LIB_CRYPTO,0,0) ,"common libcrypto routines"}, |
| 145 | {ERR_PACK(ERR_LIB_EC,0,0) ,"elliptic curve routines"}, |
| 146 | {ERR_PACK(ERR_LIB_SSL,0,0) ,"SSL routines"}, |
| 147 | {ERR_PACK(ERR_LIB_BIO,0,0) ,"BIO routines"}, |
| 148 | {ERR_PACK(ERR_LIB_PKCS7,0,0) ,"PKCS7 routines"}, |
| 149 | {ERR_PACK(ERR_LIB_X509V3,0,0) ,"X509 V3 routines"}, |
| 150 | {ERR_PACK(ERR_LIB_PKCS12,0,0) ,"PKCS12 routines"}, |
| 151 | {ERR_PACK(ERR_LIB_RAND,0,0) ,"random number generator"}, |
| 152 | {ERR_PACK(ERR_LIB_DSO,0,0) ,"DSO support routines"}, |
| 153 | {ERR_PACK(ERR_LIB_TS,0,0) ,"time stamp routines"}, |
| 154 | {ERR_PACK(ERR_LIB_ENGINE,0,0) ,"engine routines"}, |
| 155 | {ERR_PACK(ERR_LIB_OCSP,0,0) ,"OCSP routines"}, |
| 156 | {ERR_PACK(ERR_LIB_FIPS,0,0) ,"FIPS routines"}, |
| 157 | {ERR_PACK(ERR_LIB_CMS,0,0) ,"CMS routines"}, |
| 158 | {ERR_PACK(ERR_LIB_HMAC,0,0) ,"HMAC routines"}, |
| 159 | {0,NULL}, |
| 160 | }; |
| 161 | |
| 162 | static ERR_STRING_DATA ERR_str_functs[]= |
| 163 | { |
| 164 | {ERR_PACK(0,SYS_F_FOPEN,0), "fopen"}, |
| 165 | {ERR_PACK(0,SYS_F_CONNECT,0), "connect"}, |
| 166 | {ERR_PACK(0,SYS_F_GETSERVBYNAME,0), "getservbyname"}, |
| 167 | {ERR_PACK(0,SYS_F_SOCKET,0), "socket"}, |
| 168 | {ERR_PACK(0,SYS_F_IOCTLSOCKET,0), "ioctlsocket"}, |
| 169 | {ERR_PACK(0,SYS_F_BIND,0), "bind"}, |
| 170 | {ERR_PACK(0,SYS_F_LISTEN,0), "listen"}, |
| 171 | {ERR_PACK(0,SYS_F_ACCEPT,0), "accept"}, |
| 172 | #ifdef OPENSSL_SYS_WINDOWS |
| 173 | {ERR_PACK(0,SYS_F_WSASTARTUP,0), "WSAstartup"}, |
| 174 | #endif |
| 175 | {ERR_PACK(0,SYS_F_OPENDIR,0), "opendir"}, |
| 176 | {ERR_PACK(0,SYS_F_FREAD,0), "fread"}, |
| 177 | {0,NULL}, |
| 178 | }; |
| 179 | |
| 180 | static ERR_STRING_DATA ERR_str_reasons[]= |
| 181 | { |
| 182 | {ERR_R_SYS_LIB ,"system lib"}, |
| 183 | {ERR_R_BN_LIB ,"BN lib"}, |
| 184 | {ERR_R_RSA_LIB ,"RSA lib"}, |
| 185 | {ERR_R_DH_LIB ,"DH lib"}, |
| 186 | {ERR_R_EVP_LIB ,"EVP lib"}, |
| 187 | {ERR_R_BUF_LIB ,"BUF lib"}, |
| 188 | {ERR_R_OBJ_LIB ,"OBJ lib"}, |
| 189 | {ERR_R_PEM_LIB ,"PEM lib"}, |
| 190 | {ERR_R_DSA_LIB ,"DSA lib"}, |
| 191 | {ERR_R_X509_LIB ,"X509 lib"}, |
| 192 | {ERR_R_ASN1_LIB ,"ASN1 lib"}, |
| 193 | {ERR_R_CONF_LIB ,"CONF lib"}, |
| 194 | {ERR_R_CRYPTO_LIB ,"CRYPTO lib"}, |
| 195 | {ERR_R_EC_LIB ,"EC lib"}, |
| 196 | {ERR_R_SSL_LIB ,"SSL lib"}, |
| 197 | {ERR_R_BIO_LIB ,"BIO lib"}, |
| 198 | {ERR_R_PKCS7_LIB ,"PKCS7 lib"}, |
| 199 | {ERR_R_X509V3_LIB ,"X509V3 lib"}, |
| 200 | {ERR_R_PKCS12_LIB ,"PKCS12 lib"}, |
| 201 | {ERR_R_RAND_LIB ,"RAND lib"}, |
| 202 | {ERR_R_DSO_LIB ,"DSO lib"}, |
| 203 | {ERR_R_ENGINE_LIB ,"ENGINE lib"}, |
| 204 | {ERR_R_OCSP_LIB ,"OCSP lib"}, |
| 205 | {ERR_R_TS_LIB ,"TS lib"}, |
| 206 | |
| 207 | {ERR_R_NESTED_ASN1_ERROR ,"nested asn1 error"}, |
| 208 | {ERR_R_BAD_ASN1_OBJECT_HEADER ,"bad asn1 object header"}, |
| 209 | {ERR_R_BAD_GET_ASN1_OBJECT_CALL ,"bad get asn1 object call"}, |
| 210 | {ERR_R_EXPECTING_AN_ASN1_SEQUENCE ,"expecting an asn1 sequence"}, |
| 211 | {ERR_R_ASN1_LENGTH_MISMATCH ,"asn1 length mismatch"}, |
| 212 | {ERR_R_MISSING_ASN1_EOS ,"missing asn1 eos"}, |
| 213 | |
| 214 | {ERR_R_FATAL ,"fatal"}, |
| 215 | {ERR_R_MALLOC_FAILURE ,"malloc failure"}, |
| 216 | {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED ,"called a function you should not call"}, |
| 217 | {ERR_R_PASSED_NULL_PARAMETER ,"passed a null parameter"}, |
| 218 | {ERR_R_INTERNAL_ERROR ,"internal error"}, |
| 219 | {ERR_R_DISABLED ,"called a function that was disabled at compile-time"}, |
| 220 | |
| 221 | {0,NULL}, |
| 222 | }; |
| 223 | #endif |
| 224 | |
| 225 | |
| 226 | /* Define the predeclared (but externally opaque) "ERR_FNS" type */ |
| 227 | struct st_ERR_FNS |
| 228 | { |
| 229 | /* Works on the "error_hash" string table */ |
| 230 | LHASH_OF(ERR_STRING_DATA) *(*cb_err_get)(int create); |
| 231 | void (*cb_err_del)(void); |
| 232 | ERR_STRING_DATA *(*cb_err_get_item)(const ERR_STRING_DATA *); |
| 233 | ERR_STRING_DATA *(*cb_err_set_item)(ERR_STRING_DATA *); |
| 234 | ERR_STRING_DATA *(*cb_err_del_item)(ERR_STRING_DATA *); |
| 235 | /* Works on the "thread_hash" error-state table */ |
| 236 | LHASH_OF(ERR_STATE) *(*cb_thread_get)(int create); |
| 237 | void (*cb_thread_release)(LHASH_OF(ERR_STATE) **hash); |
| 238 | ERR_STATE *(*cb_thread_get_item)(const ERR_STATE *); |
| 239 | ERR_STATE *(*cb_thread_set_item)(ERR_STATE *); |
| 240 | void (*cb_thread_del_item)(const ERR_STATE *); |
| 241 | /* Returns the next available error "library" numbers */ |
| 242 | int (*cb_get_next_lib)(void); |
| 243 | }; |
| 244 | |
| 245 | /* Predeclarations of the "err_defaults" functions */ |
| 246 | static LHASH_OF(ERR_STRING_DATA) *int_err_get(int create); |
| 247 | static void int_err_del(void); |
| 248 | static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *); |
| 249 | static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *); |
| 250 | static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *); |
| 251 | static LHASH_OF(ERR_STATE) *int_thread_get(int create); |
| 252 | static void int_thread_release(LHASH_OF(ERR_STATE) **hash); |
| 253 | static ERR_STATE *int_thread_get_item(const ERR_STATE *); |
| 254 | static ERR_STATE *int_thread_set_item(ERR_STATE *); |
| 255 | static void int_thread_del_item(const ERR_STATE *); |
| 256 | static int int_err_get_next_lib(void); |
| 257 | /* The static ERR_FNS table using these defaults functions */ |
| 258 | static const ERR_FNS err_defaults = |
| 259 | { |
| 260 | int_err_get, |
| 261 | int_err_del, |
| 262 | int_err_get_item, |
| 263 | int_err_set_item, |
| 264 | int_err_del_item, |
| 265 | int_thread_get, |
| 266 | int_thread_release, |
| 267 | int_thread_get_item, |
| 268 | int_thread_set_item, |
| 269 | int_thread_del_item, |
| 270 | int_err_get_next_lib |
| 271 | }; |
| 272 | |
| 273 | /* The replacable table of ERR_FNS functions we use at run-time */ |
| 274 | static const ERR_FNS *err_fns = NULL; |
| 275 | |
| 276 | /* Eg. rather than using "err_get()", use "ERRFN(err_get)()". */ |
| 277 | #define ERRFN(a) err_fns->cb_##a |
| 278 | |
| 279 | /* The internal state used by "err_defaults" - as such, the setting, reading, |
| 280 | * creating, and deleting of this data should only be permitted via the |
| 281 | * "err_defaults" functions. This way, a linked module can completely defer all |
| 282 | * ERR state operation (together with requisite locking) to the implementations |
| 283 | * and state in the loading application. */ |
| 284 | static LHASH_OF(ERR_STRING_DATA) *int_error_hash = NULL; |
| 285 | static LHASH_OF(ERR_STATE) *int_thread_hash = NULL; |
| 286 | static int int_thread_hash_references = 0; |
| 287 | static int int_err_library_number= ERR_LIB_USER; |
| 288 | |
| 289 | /* Internal function that checks whether "err_fns" is set and if not, sets it to |
| 290 | * the defaults. */ |
| 291 | static void err_fns_check(void) |
| 292 | { |
| 293 | if (err_fns) return; |
| 294 | |
| 295 | CRYPTO_w_lock(CRYPTO_LOCK_ERR); |
| 296 | if (!err_fns) |
| 297 | err_fns = &err_defaults; |
| 298 | CRYPTO_w_unlock(CRYPTO_LOCK_ERR); |
| 299 | } |
| 300 | |
| 301 | /* API functions to get or set the underlying ERR functions. */ |
| 302 | |
| 303 | const ERR_FNS *ERR_get_implementation(void) |
| 304 | { |
| 305 | err_fns_check(); |
| 306 | return err_fns; |
| 307 | } |
| 308 | |
| 309 | int ERR_set_implementation(const ERR_FNS *fns) |
| 310 | { |
| 311 | int ret = 0; |
| 312 | |
| 313 | CRYPTO_w_lock(CRYPTO_LOCK_ERR); |
| 314 | /* It's too late if 'err_fns' is non-NULL. BTW: not much point setting |
| 315 | * an error is there?! */ |
| 316 | if (!err_fns) |
| 317 | { |
| 318 | err_fns = fns; |
| 319 | ret = 1; |
| 320 | } |
| 321 | CRYPTO_w_unlock(CRYPTO_LOCK_ERR); |
| 322 | return ret; |
| 323 | } |
| 324 | |
| 325 | /* These are the callbacks provided to "lh_new()" when creating the LHASH tables |
| 326 | * internal to the "err_defaults" implementation. */ |
| 327 | |
| 328 | static unsigned long get_error_values(int inc,int top,const char **file,int *line, |
| 329 | const char **data,int *flags); |
| 330 | |
| 331 | /* The internal functions used in the "err_defaults" implementation */ |
| 332 | |
| 333 | static unsigned long err_string_data_hash(const ERR_STRING_DATA *a) |
| 334 | { |
| 335 | unsigned long ret,l; |
| 336 | |
| 337 | l=a->error; |
| 338 | ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l); |
| 339 | return(ret^ret%19*13); |
| 340 | } |
| 341 | static IMPLEMENT_LHASH_HASH_FN(err_string_data, ERR_STRING_DATA) |
| 342 | |
| 343 | static int err_string_data_cmp(const ERR_STRING_DATA *a, |
| 344 | const ERR_STRING_DATA *b) |
| 345 | { |
| 346 | return (int)(a->error - b->error); |
| 347 | } |
| 348 | static IMPLEMENT_LHASH_COMP_FN(err_string_data, ERR_STRING_DATA) |
| 349 | |
| 350 | static LHASH_OF(ERR_STRING_DATA) *int_err_get(int create) |
| 351 | { |
| 352 | LHASH_OF(ERR_STRING_DATA) *ret = NULL; |
| 353 | |
| 354 | CRYPTO_w_lock(CRYPTO_LOCK_ERR); |
| 355 | if (!int_error_hash && create) |
| 356 | { |
| 357 | CRYPTO_push_info("int_err_get (err.c)"); |
| 358 | int_error_hash = lh_ERR_STRING_DATA_new(); |
| 359 | CRYPTO_pop_info(); |
| 360 | } |
| 361 | if (int_error_hash) |
| 362 | ret = int_error_hash; |
| 363 | CRYPTO_w_unlock(CRYPTO_LOCK_ERR); |
| 364 | |
| 365 | return ret; |
| 366 | } |
| 367 | |
| 368 | static void int_err_del(void) |
| 369 | { |
| 370 | CRYPTO_w_lock(CRYPTO_LOCK_ERR); |
| 371 | if (int_error_hash) |
| 372 | { |
| 373 | lh_ERR_STRING_DATA_free(int_error_hash); |
| 374 | int_error_hash = NULL; |
| 375 | } |
| 376 | CRYPTO_w_unlock(CRYPTO_LOCK_ERR); |
| 377 | } |
| 378 | |
| 379 | static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d) |
| 380 | { |
| 381 | ERR_STRING_DATA *p; |
| 382 | LHASH_OF(ERR_STRING_DATA) *hash; |
| 383 | |
| 384 | err_fns_check(); |
| 385 | hash = ERRFN(err_get)(0); |
| 386 | if (!hash) |
| 387 | return NULL; |
| 388 | |
| 389 | CRYPTO_r_lock(CRYPTO_LOCK_ERR); |
| 390 | p = lh_ERR_STRING_DATA_retrieve(hash, d); |
| 391 | CRYPTO_r_unlock(CRYPTO_LOCK_ERR); |
| 392 | |
| 393 | return p; |
| 394 | } |
| 395 | |
| 396 | static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *d) |
| 397 | { |
| 398 | ERR_STRING_DATA *p; |
| 399 | LHASH_OF(ERR_STRING_DATA) *hash; |
| 400 | |
| 401 | err_fns_check(); |
| 402 | hash = ERRFN(err_get)(1); |
| 403 | if (!hash) |
| 404 | return NULL; |
| 405 | |
| 406 | CRYPTO_w_lock(CRYPTO_LOCK_ERR); |
| 407 | p = lh_ERR_STRING_DATA_insert(hash, d); |
| 408 | CRYPTO_w_unlock(CRYPTO_LOCK_ERR); |
| 409 | |
| 410 | return p; |
| 411 | } |
| 412 | |
| 413 | static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *d) |
| 414 | { |
| 415 | ERR_STRING_DATA *p; |
| 416 | LHASH_OF(ERR_STRING_DATA) *hash; |
| 417 | |
| 418 | err_fns_check(); |
| 419 | hash = ERRFN(err_get)(0); |
| 420 | if (!hash) |
| 421 | return NULL; |
| 422 | |
| 423 | CRYPTO_w_lock(CRYPTO_LOCK_ERR); |
| 424 | p = lh_ERR_STRING_DATA_delete(hash, d); |
| 425 | CRYPTO_w_unlock(CRYPTO_LOCK_ERR); |
| 426 | |
| 427 | return p; |
| 428 | } |
| 429 | |
| 430 | static unsigned long err_state_hash(const ERR_STATE *a) |
| 431 | { |
| 432 | return CRYPTO_THREADID_hash(&a->tid) * 13; |
| 433 | } |
| 434 | static IMPLEMENT_LHASH_HASH_FN(err_state, ERR_STATE) |
| 435 | |
| 436 | static int err_state_cmp(const ERR_STATE *a, const ERR_STATE *b) |
| 437 | { |
| 438 | return CRYPTO_THREADID_cmp(&a->tid, &b->tid); |
| 439 | } |
| 440 | static IMPLEMENT_LHASH_COMP_FN(err_state, ERR_STATE) |
| 441 | |
| 442 | static LHASH_OF(ERR_STATE) *int_thread_get(int create) |
| 443 | { |
| 444 | LHASH_OF(ERR_STATE) *ret = NULL; |
| 445 | |
| 446 | CRYPTO_w_lock(CRYPTO_LOCK_ERR); |
| 447 | if (!int_thread_hash && create) |
| 448 | { |
| 449 | CRYPTO_push_info("int_thread_get (err.c)"); |
| 450 | int_thread_hash = lh_ERR_STATE_new(); |
| 451 | CRYPTO_pop_info(); |
| 452 | } |
| 453 | if (int_thread_hash) |
| 454 | { |
| 455 | int_thread_hash_references++; |
| 456 | ret = int_thread_hash; |
| 457 | } |
| 458 | CRYPTO_w_unlock(CRYPTO_LOCK_ERR); |
| 459 | return ret; |
| 460 | } |
| 461 | |
| 462 | static void int_thread_release(LHASH_OF(ERR_STATE) **hash) |
| 463 | { |
| 464 | int i; |
| 465 | |
| 466 | if (hash == NULL || *hash == NULL) |
| 467 | return; |
| 468 | |
| 469 | i = CRYPTO_add(&int_thread_hash_references, -1, CRYPTO_LOCK_ERR); |
| 470 | |
| 471 | #ifdef REF_PRINT |
| 472 | fprintf(stderr,"%4d:%s\n",int_thread_hash_references,"ERR"); |
| 473 | #endif |
| 474 | if (i > 0) return; |
| 475 | #ifdef REF_CHECK |
| 476 | if (i < 0) |
| 477 | { |
| 478 | fprintf(stderr,"int_thread_release, bad reference count\n"); |
| 479 | abort(); /* ok */ |
| 480 | } |
| 481 | #endif |
| 482 | *hash = NULL; |
| 483 | } |
| 484 | |
| 485 | static ERR_STATE *int_thread_get_item(const ERR_STATE *d) |
| 486 | { |
| 487 | ERR_STATE *p; |
| 488 | LHASH_OF(ERR_STATE) *hash; |
| 489 | |
| 490 | err_fns_check(); |
| 491 | hash = ERRFN(thread_get)(0); |
| 492 | if (!hash) |
| 493 | return NULL; |
| 494 | |
| 495 | CRYPTO_r_lock(CRYPTO_LOCK_ERR); |
| 496 | p = lh_ERR_STATE_retrieve(hash, d); |
| 497 | CRYPTO_r_unlock(CRYPTO_LOCK_ERR); |
| 498 | |
| 499 | ERRFN(thread_release)(&hash); |
| 500 | return p; |
| 501 | } |
| 502 | |
| 503 | static ERR_STATE *int_thread_set_item(ERR_STATE *d) |
| 504 | { |
| 505 | ERR_STATE *p; |
| 506 | LHASH_OF(ERR_STATE) *hash; |
| 507 | |
| 508 | err_fns_check(); |
| 509 | hash = ERRFN(thread_get)(1); |
| 510 | if (!hash) |
| 511 | return NULL; |
| 512 | |
| 513 | CRYPTO_w_lock(CRYPTO_LOCK_ERR); |
| 514 | p = lh_ERR_STATE_insert(hash, d); |
| 515 | CRYPTO_w_unlock(CRYPTO_LOCK_ERR); |
| 516 | |
| 517 | ERRFN(thread_release)(&hash); |
| 518 | return p; |
| 519 | } |
| 520 | |
| 521 | static void int_thread_del_item(const ERR_STATE *d) |
| 522 | { |
| 523 | ERR_STATE *p; |
| 524 | LHASH_OF(ERR_STATE) *hash; |
| 525 | |
| 526 | err_fns_check(); |
| 527 | hash = ERRFN(thread_get)(0); |
| 528 | if (!hash) |
| 529 | return; |
| 530 | |
| 531 | CRYPTO_w_lock(CRYPTO_LOCK_ERR); |
| 532 | p = lh_ERR_STATE_delete(hash, d); |
| 533 | /* make sure we don't leak memory */ |
| 534 | if (int_thread_hash_references == 1 |
| 535 | && int_thread_hash && lh_ERR_STATE_num_items(int_thread_hash) == 0) |
| 536 | { |
| 537 | lh_ERR_STATE_free(int_thread_hash); |
| 538 | int_thread_hash = NULL; |
| 539 | } |
| 540 | CRYPTO_w_unlock(CRYPTO_LOCK_ERR); |
| 541 | |
| 542 | ERRFN(thread_release)(&hash); |
| 543 | if (p) |
| 544 | ERR_STATE_free(p); |
| 545 | } |
| 546 | |
| 547 | static int int_err_get_next_lib(void) |
| 548 | { |
| 549 | int ret; |
| 550 | |
| 551 | CRYPTO_w_lock(CRYPTO_LOCK_ERR); |
| 552 | ret = int_err_library_number++; |
| 553 | CRYPTO_w_unlock(CRYPTO_LOCK_ERR); |
| 554 | |
| 555 | return ret; |
| 556 | } |
| 557 | |
| 558 | |
| 559 | #ifndef OPENSSL_NO_ERR |
| 560 | #define NUM_SYS_STR_REASONS 127 |
| 561 | #define LEN_SYS_STR_REASON 32 |
| 562 | |
| 563 | static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1]; |
| 564 | /* SYS_str_reasons is filled with copies of strerror() results at |
| 565 | * initialization. |
| 566 | * 'errno' values up to 127 should cover all usual errors, |
| 567 | * others will be displayed numerically by ERR_error_string. |
| 568 | * It is crucial that we have something for each reason code |
| 569 | * that occurs in ERR_str_reasons, or bogus reason strings |
| 570 | * will be returned for SYSerr(), which always gets an errno |
| 571 | * value and never one of those 'standard' reason codes. */ |
| 572 | |
| 573 | static void build_SYS_str_reasons(void) |
| 574 | { |
| 575 | /* OPENSSL_malloc cannot be used here, use static storage instead */ |
| 576 | static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON]; |
| 577 | int i; |
| 578 | static int init = 1; |
| 579 | |
| 580 | CRYPTO_r_lock(CRYPTO_LOCK_ERR); |
| 581 | if (!init) |
| 582 | { |
| 583 | CRYPTO_r_unlock(CRYPTO_LOCK_ERR); |
| 584 | return; |
| 585 | } |
| 586 | |
| 587 | CRYPTO_r_unlock(CRYPTO_LOCK_ERR); |
| 588 | CRYPTO_w_lock(CRYPTO_LOCK_ERR); |
| 589 | if (!init) |
| 590 | { |
| 591 | CRYPTO_w_unlock(CRYPTO_LOCK_ERR); |
| 592 | return; |
| 593 | } |
| 594 | |
| 595 | for (i = 1; i <= NUM_SYS_STR_REASONS; i++) |
| 596 | { |
| 597 | ERR_STRING_DATA *str = &SYS_str_reasons[i - 1]; |
| 598 | |
| 599 | str->error = (unsigned long)i; |
| 600 | if (str->string == NULL) |
| 601 | { |
| 602 | char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]); |
| 603 | char *src = strerror(i); |
| 604 | if (src != NULL) |
| 605 | { |
| 606 | strncpy(*dest, src, sizeof *dest); |
| 607 | (*dest)[sizeof *dest - 1] = '\0'; |
| 608 | str->string = *dest; |
| 609 | } |
| 610 | } |
| 611 | if (str->string == NULL) |
| 612 | str->string = "unknown"; |
| 613 | } |
| 614 | |
| 615 | /* Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL}, |
| 616 | * as required by ERR_load_strings. */ |
| 617 | |
| 618 | init = 0; |
| 619 | |
| 620 | CRYPTO_w_unlock(CRYPTO_LOCK_ERR); |
| 621 | } |
| 622 | #endif |
| 623 | |
| 624 | #define err_clear_data(p,i) \ |
| 625 | do { \ |
| 626 | if (((p)->err_data[i] != NULL) && \ |
| 627 | (p)->err_data_flags[i] & ERR_TXT_MALLOCED) \ |
| 628 | { \ |
| 629 | OPENSSL_free((p)->err_data[i]); \ |
| 630 | (p)->err_data[i]=NULL; \ |
| 631 | } \ |
| 632 | (p)->err_data_flags[i]=0; \ |
| 633 | } while(0) |
| 634 | |
| 635 | #define err_clear(p,i) \ |
| 636 | do { \ |
| 637 | (p)->err_flags[i]=0; \ |
| 638 | (p)->err_buffer[i]=0; \ |
| 639 | err_clear_data(p,i); \ |
| 640 | (p)->err_file[i]=NULL; \ |
| 641 | (p)->err_line[i]= -1; \ |
| 642 | } while(0) |
| 643 | |
| 644 | static void ERR_STATE_free(ERR_STATE *s) |
| 645 | { |
| 646 | int i; |
| 647 | |
| 648 | if (s == NULL) |
| 649 | return; |
| 650 | |
| 651 | for (i=0; i<ERR_NUM_ERRORS; i++) |
| 652 | { |
| 653 | err_clear_data(s,i); |
| 654 | } |
| 655 | OPENSSL_free(s); |
| 656 | } |
| 657 | |
| 658 | void ERR_load_ERR_strings(void) |
| 659 | { |
| 660 | err_fns_check(); |
| 661 | #ifndef OPENSSL_NO_ERR |
| 662 | err_load_strings(0,ERR_str_libraries); |
| 663 | err_load_strings(0,ERR_str_reasons); |
| 664 | err_load_strings(ERR_LIB_SYS,ERR_str_functs); |
| 665 | build_SYS_str_reasons(); |
| 666 | err_load_strings(ERR_LIB_SYS,SYS_str_reasons); |
| 667 | #endif |
| 668 | } |
| 669 | |
| 670 | static void err_load_strings(int lib, ERR_STRING_DATA *str) |
| 671 | { |
| 672 | while (str->error) |
| 673 | { |
| 674 | if (lib) |
| 675 | str->error|=ERR_PACK(lib,0,0); |
| 676 | ERRFN(err_set_item)(str); |
| 677 | str++; |
| 678 | } |
| 679 | } |
| 680 | |
| 681 | void ERR_load_strings(int lib, ERR_STRING_DATA *str) |
| 682 | { |
| 683 | ERR_load_ERR_strings(); |
| 684 | err_load_strings(lib, str); |
| 685 | } |
| 686 | |
| 687 | void ERR_unload_strings(int lib, ERR_STRING_DATA *str) |
| 688 | { |
| 689 | while (str->error) |
| 690 | { |
| 691 | if (lib) |
| 692 | str->error|=ERR_PACK(lib,0,0); |
| 693 | ERRFN(err_del_item)(str); |
| 694 | str++; |
| 695 | } |
| 696 | } |
| 697 | |
| 698 | void ERR_free_strings(void) |
| 699 | { |
| 700 | err_fns_check(); |
| 701 | ERRFN(err_del)(); |
| 702 | } |
| 703 | |
| 704 | /********************************************************/ |
| 705 | |
| 706 | void ERR_put_error(int lib, int func, int reason, const char *file, |
| 707 | int line) |
| 708 | { |
| 709 | ERR_STATE *es; |
| 710 | |
| 711 | #ifdef _OSD_POSIX |
| 712 | /* In the BS2000-OSD POSIX subsystem, the compiler generates |
| 713 | * path names in the form "*POSIX(/etc/passwd)". |
| 714 | * This dirty hack strips them to something sensible. |
| 715 | * @@@ We shouldn't modify a const string, though. |
| 716 | */ |
| 717 | if (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) { |
| 718 | char *end; |
| 719 | |
| 720 | /* Skip the "*POSIX(" prefix */ |
| 721 | file += sizeof("*POSIX(")-1; |
| 722 | end = &file[strlen(file)-1]; |
| 723 | if (*end == ')') |
| 724 | *end = '\0'; |
| 725 | /* Optional: use the basename of the path only. */ |
| 726 | if ((end = strrchr(file, '/')) != NULL) |
| 727 | file = &end[1]; |
| 728 | } |
| 729 | #endif |
| 730 | es=ERR_get_state(); |
| 731 | |
| 732 | es->top=(es->top+1)%ERR_NUM_ERRORS; |
| 733 | if (es->top == es->bottom) |
| 734 | es->bottom=(es->bottom+1)%ERR_NUM_ERRORS; |
| 735 | es->err_flags[es->top]=0; |
| 736 | es->err_buffer[es->top]=ERR_PACK(lib,func,reason); |
| 737 | es->err_file[es->top]=file; |
| 738 | es->err_line[es->top]=line; |
| 739 | err_clear_data(es,es->top); |
| 740 | } |
| 741 | |
| 742 | void ERR_clear_error(void) |
| 743 | { |
| 744 | int i; |
| 745 | ERR_STATE *es; |
| 746 | |
| 747 | es=ERR_get_state(); |
| 748 | |
| 749 | for (i=0; i<ERR_NUM_ERRORS; i++) |
| 750 | { |
| 751 | err_clear(es,i); |
| 752 | } |
| 753 | es->top=es->bottom=0; |
| 754 | } |
| 755 | |
| 756 | |
| 757 | unsigned long ERR_get_error(void) |
| 758 | { return(get_error_values(1,0,NULL,NULL,NULL,NULL)); } |
| 759 | |
| 760 | unsigned long ERR_get_error_line(const char **file, |
| 761 | int *line) |
| 762 | { return(get_error_values(1,0,file,line,NULL,NULL)); } |
| 763 | |
| 764 | unsigned long ERR_get_error_line_data(const char **file, int *line, |
| 765 | const char **data, int *flags) |
| 766 | { return(get_error_values(1,0,file,line,data,flags)); } |
| 767 | |
| 768 | |
| 769 | unsigned long ERR_peek_error(void) |
| 770 | { return(get_error_values(0,0,NULL,NULL,NULL,NULL)); } |
| 771 | |
| 772 | unsigned long ERR_peek_error_line(const char **file, int *line) |
| 773 | { return(get_error_values(0,0,file,line,NULL,NULL)); } |
| 774 | |
| 775 | unsigned long ERR_peek_error_line_data(const char **file, int *line, |
| 776 | const char **data, int *flags) |
| 777 | { return(get_error_values(0,0,file,line,data,flags)); } |
| 778 | |
| 779 | |
| 780 | unsigned long ERR_peek_last_error(void) |
| 781 | { return(get_error_values(0,1,NULL,NULL,NULL,NULL)); } |
| 782 | |
| 783 | unsigned long ERR_peek_last_error_line(const char **file, int *line) |
| 784 | { return(get_error_values(0,1,file,line,NULL,NULL)); } |
| 785 | |
| 786 | unsigned long ERR_peek_last_error_line_data(const char **file, int *line, |
| 787 | const char **data, int *flags) |
| 788 | { return(get_error_values(0,1,file,line,data,flags)); } |
| 789 | |
| 790 | |
| 791 | static unsigned long get_error_values(int inc, int top, const char **file, int *line, |
| 792 | const char **data, int *flags) |
| 793 | { |
| 794 | int i=0; |
| 795 | ERR_STATE *es; |
| 796 | unsigned long ret; |
| 797 | |
| 798 | es=ERR_get_state(); |
| 799 | |
| 800 | if (inc && top) |
| 801 | { |
| 802 | if (file) *file = ""; |
| 803 | if (line) *line = 0; |
| 804 | if (data) *data = ""; |
| 805 | if (flags) *flags = 0; |
| 806 | |
| 807 | return ERR_R_INTERNAL_ERROR; |
| 808 | } |
| 809 | |
| 810 | if (es->bottom == es->top) return 0; |
| 811 | if (top) |
| 812 | i=es->top; /* last error */ |
| 813 | else |
| 814 | i=(es->bottom+1)%ERR_NUM_ERRORS; /* first error */ |
| 815 | |
| 816 | ret=es->err_buffer[i]; |
| 817 | if (inc) |
| 818 | { |
| 819 | es->bottom=i; |
| 820 | es->err_buffer[i]=0; |
| 821 | } |
| 822 | |
| 823 | if ((file != NULL) && (line != NULL)) |
| 824 | { |
| 825 | if (es->err_file[i] == NULL) |
| 826 | { |
| 827 | *file="NA"; |
| 828 | if (line != NULL) *line=0; |
| 829 | } |
| 830 | else |
| 831 | { |
| 832 | *file=es->err_file[i]; |
| 833 | if (line != NULL) *line=es->err_line[i]; |
| 834 | } |
| 835 | } |
| 836 | |
| 837 | if (data == NULL) |
| 838 | { |
| 839 | if (inc) |
| 840 | { |
| 841 | err_clear_data(es, i); |
| 842 | } |
| 843 | } |
| 844 | else |
| 845 | { |
| 846 | if (es->err_data[i] == NULL) |
| 847 | { |
| 848 | *data=""; |
| 849 | if (flags != NULL) *flags=0; |
| 850 | } |
| 851 | else |
| 852 | { |
| 853 | *data=es->err_data[i]; |
| 854 | if (flags != NULL) *flags=es->err_data_flags[i]; |
| 855 | } |
| 856 | } |
| 857 | return ret; |
| 858 | } |
| 859 | |
| 860 | void ERR_error_string_n(unsigned long e, char *buf, size_t len) |
| 861 | { |
| 862 | char lsbuf[64], fsbuf[64], rsbuf[64]; |
| 863 | const char *ls,*fs,*rs; |
| 864 | unsigned long l,f,r; |
| 865 | |
| 866 | l=ERR_GET_LIB(e); |
| 867 | f=ERR_GET_FUNC(e); |
| 868 | r=ERR_GET_REASON(e); |
| 869 | |
| 870 | ls=ERR_lib_error_string(e); |
| 871 | fs=ERR_func_error_string(e); |
| 872 | rs=ERR_reason_error_string(e); |
| 873 | |
| 874 | if (ls == NULL) |
| 875 | BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l); |
| 876 | if (fs == NULL) |
| 877 | BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f); |
| 878 | if (rs == NULL) |
| 879 | BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r); |
| 880 | |
| 881 | BIO_snprintf(buf, len,"error:%08lX:%s:%s:%s", e, ls?ls:lsbuf, |
| 882 | fs?fs:fsbuf, rs?rs:rsbuf); |
| 883 | if (strlen(buf) == len-1) |
| 884 | { |
| 885 | /* output may be truncated; make sure we always have 5 |
| 886 | * colon-separated fields, i.e. 4 colons ... */ |
| 887 | #define NUM_COLONS 4 |
| 888 | if (len > NUM_COLONS) /* ... if possible */ |
| 889 | { |
| 890 | int i; |
| 891 | char *s = buf; |
| 892 | |
| 893 | for (i = 0; i < NUM_COLONS; i++) |
| 894 | { |
| 895 | char *colon = strchr(s, ':'); |
| 896 | if (colon == NULL || colon > &buf[len-1] - NUM_COLONS + i) |
| 897 | { |
| 898 | /* set colon no. i at last possible position |
| 899 | * (buf[len-1] is the terminating 0)*/ |
| 900 | colon = &buf[len-1] - NUM_COLONS + i; |
| 901 | *colon = ':'; |
| 902 | } |
| 903 | s = colon + 1; |
| 904 | } |
| 905 | } |
| 906 | } |
| 907 | } |
| 908 | |
| 909 | /* BAD for multi-threading: uses a local buffer if ret == NULL */ |
| 910 | /* ERR_error_string_n should be used instead for ret != NULL |
| 911 | * as ERR_error_string cannot know how large the buffer is */ |
| 912 | char *ERR_error_string(unsigned long e, char *ret) |
| 913 | { |
| 914 | static char buf[256]; |
| 915 | |
| 916 | if (ret == NULL) ret=buf; |
| 917 | ERR_error_string_n(e, ret, 256); |
| 918 | |
| 919 | return ret; |
| 920 | } |
| 921 | |
| 922 | LHASH_OF(ERR_STRING_DATA) *ERR_get_string_table(void) |
| 923 | { |
| 924 | err_fns_check(); |
| 925 | return ERRFN(err_get)(0); |
| 926 | } |
| 927 | |
| 928 | LHASH_OF(ERR_STATE) *ERR_get_err_state_table(void) |
| 929 | { |
| 930 | err_fns_check(); |
| 931 | return ERRFN(thread_get)(0); |
| 932 | } |
| 933 | |
| 934 | void ERR_release_err_state_table(LHASH_OF(ERR_STATE) **hash) |
| 935 | { |
| 936 | err_fns_check(); |
| 937 | ERRFN(thread_release)(hash); |
| 938 | } |
| 939 | |
| 940 | const char *ERR_lib_error_string(unsigned long e) |
| 941 | { |
| 942 | ERR_STRING_DATA d,*p; |
| 943 | unsigned long l; |
| 944 | |
| 945 | err_fns_check(); |
| 946 | l=ERR_GET_LIB(e); |
| 947 | d.error=ERR_PACK(l,0,0); |
| 948 | p=ERRFN(err_get_item)(&d); |
| 949 | return((p == NULL)?NULL:p->string); |
| 950 | } |
| 951 | |
| 952 | const char *ERR_func_error_string(unsigned long e) |
| 953 | { |
| 954 | ERR_STRING_DATA d,*p; |
| 955 | unsigned long l,f; |
| 956 | |
| 957 | err_fns_check(); |
| 958 | l=ERR_GET_LIB(e); |
| 959 | f=ERR_GET_FUNC(e); |
| 960 | d.error=ERR_PACK(l,f,0); |
| 961 | p=ERRFN(err_get_item)(&d); |
| 962 | return((p == NULL)?NULL:p->string); |
| 963 | } |
| 964 | |
| 965 | const char *ERR_reason_error_string(unsigned long e) |
| 966 | { |
| 967 | ERR_STRING_DATA d,*p=NULL; |
| 968 | unsigned long l,r; |
| 969 | |
| 970 | err_fns_check(); |
| 971 | l=ERR_GET_LIB(e); |
| 972 | r=ERR_GET_REASON(e); |
| 973 | d.error=ERR_PACK(l,0,r); |
| 974 | p=ERRFN(err_get_item)(&d); |
| 975 | if (!p) |
| 976 | { |
| 977 | d.error=ERR_PACK(0,0,r); |
| 978 | p=ERRFN(err_get_item)(&d); |
| 979 | } |
| 980 | return((p == NULL)?NULL:p->string); |
| 981 | } |
| 982 | |
| 983 | void ERR_remove_thread_state(const CRYPTO_THREADID *id) |
| 984 | { |
| 985 | ERR_STATE tmp; |
| 986 | |
| 987 | if (id) |
| 988 | CRYPTO_THREADID_cpy(&tmp.tid, id); |
| 989 | else |
| 990 | CRYPTO_THREADID_current(&tmp.tid); |
| 991 | err_fns_check(); |
| 992 | /* thread_del_item automatically destroys the LHASH if the number of |
| 993 | * items reaches zero. */ |
| 994 | ERRFN(thread_del_item)(&tmp); |
| 995 | } |
| 996 | |
| 997 | #ifndef OPENSSL_NO_DEPRECATED |
| 998 | void ERR_remove_state(unsigned long pid) |
| 999 | { |
| 1000 | ERR_remove_thread_state(NULL); |
| 1001 | } |
| 1002 | #endif |
| 1003 | |
| 1004 | ERR_STATE *ERR_get_state(void) |
| 1005 | { |
| 1006 | static ERR_STATE fallback; |
| 1007 | ERR_STATE *ret,tmp,*tmpp=NULL; |
| 1008 | int i; |
| 1009 | CRYPTO_THREADID tid; |
| 1010 | |
| 1011 | err_fns_check(); |
| 1012 | CRYPTO_THREADID_current(&tid); |
| 1013 | CRYPTO_THREADID_cpy(&tmp.tid, &tid); |
| 1014 | ret=ERRFN(thread_get_item)(&tmp); |
| 1015 | |
| 1016 | /* ret == the error state, if NULL, make a new one */ |
| 1017 | if (ret == NULL) |
| 1018 | { |
| 1019 | ret=(ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE)); |
| 1020 | if (ret == NULL) return(&fallback); |
| 1021 | CRYPTO_THREADID_cpy(&ret->tid, &tid); |
| 1022 | ret->top=0; |
| 1023 | ret->bottom=0; |
| 1024 | for (i=0; i<ERR_NUM_ERRORS; i++) |
| 1025 | { |
| 1026 | ret->err_data[i]=NULL; |
| 1027 | ret->err_data_flags[i]=0; |
| 1028 | } |
| 1029 | tmpp = ERRFN(thread_set_item)(ret); |
| 1030 | /* To check if insertion failed, do a get. */ |
| 1031 | if (ERRFN(thread_get_item)(ret) != ret) |
| 1032 | { |
| 1033 | ERR_STATE_free(ret); /* could not insert it */ |
| 1034 | return(&fallback); |
| 1035 | } |
| 1036 | /* If a race occured in this function and we came second, tmpp |
| 1037 | * is the first one that we just replaced. */ |
| 1038 | if (tmpp) |
| 1039 | ERR_STATE_free(tmpp); |
| 1040 | } |
| 1041 | return ret; |
| 1042 | } |
| 1043 | |
| 1044 | int ERR_get_next_error_library(void) |
| 1045 | { |
| 1046 | err_fns_check(); |
| 1047 | return ERRFN(get_next_lib)(); |
| 1048 | } |
| 1049 | |
| 1050 | void ERR_set_error_data(char *data, int flags) |
| 1051 | { |
| 1052 | ERR_STATE *es; |
| 1053 | int i; |
| 1054 | |
| 1055 | es=ERR_get_state(); |
| 1056 | |
| 1057 | i=es->top; |
| 1058 | if (i == 0) |
| 1059 | i=ERR_NUM_ERRORS-1; |
| 1060 | |
| 1061 | err_clear_data(es,i); |
| 1062 | es->err_data[i]=data; |
| 1063 | es->err_data_flags[i]=flags; |
| 1064 | } |
| 1065 | |
| 1066 | void ERR_add_error_data(int num, ...) |
| 1067 | { |
| 1068 | va_list args; |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1069 | int i,n,s; |
| 1070 | char *str,*p,*a; |
| 1071 | |
| 1072 | s=80; |
| 1073 | str=OPENSSL_malloc(s+1); |
| 1074 | if (str == NULL) return; |
| 1075 | str[0]='\0'; |
| 1076 | |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 1077 | va_start(args, num); |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1078 | n=0; |
| 1079 | for (i=0; i<num; i++) |
| 1080 | { |
| 1081 | a=va_arg(args, char*); |
| 1082 | /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */ |
| 1083 | if (a != NULL) |
| 1084 | { |
| 1085 | n+=strlen(a); |
| 1086 | if (n > s) |
| 1087 | { |
| 1088 | s=n+20; |
| 1089 | p=OPENSSL_realloc(str,s+1); |
| 1090 | if (p == NULL) |
| 1091 | { |
| 1092 | OPENSSL_free(str); |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 1093 | goto err; |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1094 | } |
| 1095 | else |
| 1096 | str=p; |
| 1097 | } |
| 1098 | BUF_strlcat(str,a,(size_t)s+1); |
| 1099 | } |
| 1100 | } |
| 1101 | ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING); |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 1102 | |
| 1103 | err: |
| 1104 | va_end(args); |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1105 | } |
| 1106 | |
| 1107 | int ERR_set_mark(void) |
| 1108 | { |
| 1109 | ERR_STATE *es; |
| 1110 | |
| 1111 | es=ERR_get_state(); |
| 1112 | |
| 1113 | if (es->bottom == es->top) return 0; |
| 1114 | es->err_flags[es->top]|=ERR_FLAG_MARK; |
| 1115 | return 1; |
| 1116 | } |
| 1117 | |
| 1118 | int ERR_pop_to_mark(void) |
| 1119 | { |
| 1120 | ERR_STATE *es; |
| 1121 | |
| 1122 | es=ERR_get_state(); |
| 1123 | |
| 1124 | while(es->bottom != es->top |
| 1125 | && (es->err_flags[es->top] & ERR_FLAG_MARK) == 0) |
| 1126 | { |
| 1127 | err_clear(es,es->top); |
| 1128 | es->top-=1; |
| 1129 | if (es->top == -1) es->top=ERR_NUM_ERRORS-1; |
| 1130 | } |
| 1131 | |
| 1132 | if (es->bottom == es->top) return 0; |
| 1133 | es->err_flags[es->top]&=~ERR_FLAG_MARK; |
| 1134 | return 1; |
| 1135 | } |