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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) 1998-2001 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 <openssl/lhash.h>
116#include <openssl/crypto.h>
117#include "cryptlib.h"
118#include <openssl/buffer.h>
119#include <openssl/bio.h>
120#include <openssl/err.h>
121
122static void err_load_strings(int lib, ERR_STRING_DATA *str);
123
124static void ERR_STATE_free(ERR_STATE *s);
125#ifndef OPENSSL_NO_ERR
126static ERR_STRING_DATA ERR_str_libraries[]=
127 {
128{ERR_PACK(ERR_LIB_NONE,0,0) ,"unknown library"},
129{ERR_PACK(ERR_LIB_SYS,0,0) ,"system library"},
130{ERR_PACK(ERR_LIB_BN,0,0) ,"bignum routines"},
131{ERR_PACK(ERR_LIB_RSA,0,0) ,"rsa routines"},
132{ERR_PACK(ERR_LIB_DH,0,0) ,"Diffie-Hellman routines"},
133{ERR_PACK(ERR_LIB_EVP,0,0) ,"digital envelope routines"},
134{ERR_PACK(ERR_LIB_BUF,0,0) ,"memory buffer routines"},
135{ERR_PACK(ERR_LIB_OBJ,0,0) ,"object identifier routines"},
136{ERR_PACK(ERR_LIB_PEM,0,0) ,"PEM routines"},
137{ERR_PACK(ERR_LIB_DSA,0,0) ,"dsa routines"},
138{ERR_PACK(ERR_LIB_X509,0,0) ,"x509 certificate routines"},
139{ERR_PACK(ERR_LIB_ASN1,0,0) ,"asn1 encoding routines"},
140{ERR_PACK(ERR_LIB_CONF,0,0) ,"configuration file routines"},
141{ERR_PACK(ERR_LIB_CRYPTO,0,0) ,"common libcrypto routines"},
142{ERR_PACK(ERR_LIB_EC,0,0) ,"elliptic curve routines"},
143{ERR_PACK(ERR_LIB_SSL,0,0) ,"SSL routines"},
144{ERR_PACK(ERR_LIB_BIO,0,0) ,"BIO routines"},
145{ERR_PACK(ERR_LIB_PKCS7,0,0) ,"PKCS7 routines"},
146{ERR_PACK(ERR_LIB_X509V3,0,0) ,"X509 V3 routines"},
147{ERR_PACK(ERR_LIB_PKCS12,0,0) ,"PKCS12 routines"},
148{ERR_PACK(ERR_LIB_RAND,0,0) ,"random number generator"},
149{ERR_PACK(ERR_LIB_DSO,0,0) ,"DSO support routines"},
150{ERR_PACK(ERR_LIB_ENGINE,0,0) ,"engine routines"},
151{ERR_PACK(ERR_LIB_OCSP,0,0) ,"OCSP routines"},
152{0,NULL},
153 };
154
155static ERR_STRING_DATA ERR_str_functs[]=
156 {
157 {ERR_PACK(0,SYS_F_FOPEN,0), "fopen"},
158 {ERR_PACK(0,SYS_F_CONNECT,0), "connect"},
159 {ERR_PACK(0,SYS_F_GETSERVBYNAME,0), "getservbyname"},
160 {ERR_PACK(0,SYS_F_SOCKET,0), "socket"},
161 {ERR_PACK(0,SYS_F_IOCTLSOCKET,0), "ioctlsocket"},
162 {ERR_PACK(0,SYS_F_BIND,0), "bind"},
163 {ERR_PACK(0,SYS_F_LISTEN,0), "listen"},
164 {ERR_PACK(0,SYS_F_ACCEPT,0), "accept"},
165#ifdef OPENSSL_SYS_WINDOWS
166 {ERR_PACK(0,SYS_F_WSASTARTUP,0), "WSAstartup"},
167#endif
168 {ERR_PACK(0,SYS_F_OPENDIR,0), "opendir"},
169 {0,NULL},
170 };
171
172static ERR_STRING_DATA ERR_str_reasons[]=
173 {
174{ERR_R_SYS_LIB ,"system lib"},
175{ERR_R_BN_LIB ,"BN lib"},
176{ERR_R_RSA_LIB ,"RSA lib"},
177{ERR_R_DH_LIB ,"DH lib"},
178{ERR_R_EVP_LIB ,"EVP lib"},
179{ERR_R_BUF_LIB ,"BUF lib"},
180{ERR_R_OBJ_LIB ,"OBJ lib"},
181{ERR_R_PEM_LIB ,"PEM lib"},
182{ERR_R_DSA_LIB ,"DSA lib"},
183{ERR_R_X509_LIB ,"X509 lib"},
184{ERR_R_ASN1_LIB ,"ASN1 lib"},
185{ERR_R_CONF_LIB ,"CONF lib"},
186{ERR_R_CRYPTO_LIB ,"CRYPTO lib"},
187{ERR_R_EC_LIB ,"EC lib"},
188{ERR_R_SSL_LIB ,"SSL lib"},
189{ERR_R_BIO_LIB ,"BIO lib"},
190{ERR_R_PKCS7_LIB ,"PKCS7 lib"},
191{ERR_R_X509V3_LIB ,"X509V3 lib"},
192{ERR_R_PKCS12_LIB ,"PKCS12 lib"},
193{ERR_R_RAND_LIB ,"RAND lib"},
194{ERR_R_DSO_LIB ,"DSO lib"},
195{ERR_R_ENGINE_LIB ,"ENGINE lib"},
196{ERR_R_OCSP_LIB ,"OCSP lib"},
197
198{ERR_R_NESTED_ASN1_ERROR ,"nested asn1 error"},
199{ERR_R_BAD_ASN1_OBJECT_HEADER ,"bad asn1 object header"},
200{ERR_R_BAD_GET_ASN1_OBJECT_CALL ,"bad get asn1 object call"},
201{ERR_R_EXPECTING_AN_ASN1_SEQUENCE ,"expecting an asn1 sequence"},
202{ERR_R_ASN1_LENGTH_MISMATCH ,"asn1 length mismatch"},
203{ERR_R_MISSING_ASN1_EOS ,"missing asn1 eos"},
204
205{ERR_R_FATAL ,"fatal"},
206{ERR_R_MALLOC_FAILURE ,"malloc failure"},
207{ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED ,"called a function you should not call"},
208{ERR_R_PASSED_NULL_PARAMETER ,"passed a null parameter"},
209{ERR_R_INTERNAL_ERROR ,"internal error"},
210
211{0,NULL},
212 };
213
214
215/* Define the predeclared (but externally opaque) "ERR_FNS" type */
216struct st_ERR_FNS
217 {
218 /* Works on the "error_hash" string table */
219 LHASH *(*cb_err_get)(int create);
220 void (*cb_err_del)(void);
221 ERR_STRING_DATA *(*cb_err_get_item)(const ERR_STRING_DATA *);
222 ERR_STRING_DATA *(*cb_err_set_item)(ERR_STRING_DATA *);
223 ERR_STRING_DATA *(*cb_err_del_item)(ERR_STRING_DATA *);
224 /* Works on the "thread_hash" error-state table */
225 LHASH *(*cb_thread_get)(int create);
226 ERR_STATE *(*cb_thread_get_item)(const ERR_STATE *);
227 ERR_STATE *(*cb_thread_set_item)(ERR_STATE *);
228 void (*cb_thread_del_item)(const ERR_STATE *);
229 /* Returns the next available error "library" numbers */
230 int (*cb_get_next_lib)(void);
231 };
232
233/* Predeclarations of the "err_defaults" functions */
234static LHASH *int_err_get(int create);
235static void int_err_del(void);
236static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
237static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *);
238static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *);
239static LHASH *int_thread_get(int create);
240static ERR_STATE *int_thread_get_item(const ERR_STATE *);
241static ERR_STATE *int_thread_set_item(ERR_STATE *);
242static void int_thread_del_item(const ERR_STATE *);
243static int int_err_get_next_lib(void);
244/* The static ERR_FNS table using these defaults functions */
245static const ERR_FNS err_defaults =
246 {
247 int_err_get,
248 int_err_del,
249 int_err_get_item,
250 int_err_set_item,
251 int_err_del_item,
252 int_thread_get,
253 int_thread_get_item,
254 int_thread_set_item,
255 int_thread_del_item,
256 int_err_get_next_lib
257 };
258
259/* The replacable table of ERR_FNS functions we use at run-time */
260static const ERR_FNS *err_fns = NULL;
261
262/* Eg. rather than using "err_get()", use "ERRFN(err_get)()". */
263#define ERRFN(a) err_fns->cb_##a
264
265/* The internal state used by "err_defaults" - as such, the setting, reading,
266 * creating, and deleting of this data should only be permitted via the
267 * "err_defaults" functions. This way, a linked module can completely defer all
268 * ERR state operation (together with requisite locking) to the implementations
269 * and state in the loading application. */
270static LHASH *int_error_hash = NULL;
271static LHASH *int_thread_hash = NULL;
272static int int_err_library_number= ERR_LIB_USER;
273
274/* Internal function that checks whether "err_fns" is set and if not, sets it to
275 * the defaults. */
276static void err_fns_check(void)
277 {
278 if (err_fns) return;
279
280 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
281 if (!err_fns)
282 err_fns = &err_defaults;
283 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
284 }
285
286/* API functions to get or set the underlying ERR functions. */
287
288const ERR_FNS *ERR_get_implementation(void)
289 {
290 err_fns_check();
291 return err_fns;
292 }
293
294int ERR_set_implementation(const ERR_FNS *fns)
295 {
296 int ret = 0;
297
298 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
299 /* It's too late if 'err_fns' is non-NULL. BTW: not much point setting
300 * an error is there?! */
301 if (!err_fns)
302 {
303 err_fns = fns;
304 ret = 1;
305 }
306 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
307 return ret;
308 }
309
310/* These are the callbacks provided to "lh_new()" when creating the LHASH tables
311 * internal to the "err_defaults" implementation. */
312
313/* static unsigned long err_hash(ERR_STRING_DATA *a); */
314static unsigned long err_hash(const void *a_void);
315/* static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b); */
316static int err_cmp(const void *a_void, const void *b_void);
317/* static unsigned long pid_hash(ERR_STATE *pid); */
318static unsigned long pid_hash(const void *pid_void);
319/* static int pid_cmp(ERR_STATE *a,ERR_STATE *pid); */
320static int pid_cmp(const void *a_void,const void *pid_void);
321static unsigned long get_error_values(int inc,int top,const char **file,int *line,
322 const char **data,int *flags);
323
324/* The internal functions used in the "err_defaults" implementation */
325
326static LHASH *int_err_get(int create)
327 {
328 LHASH *ret = NULL;
329
330 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
331 if (!int_error_hash && create)
332 {
333 CRYPTO_push_info("int_err_get (err.c)");
334 int_error_hash = lh_new(err_hash, err_cmp);
335 CRYPTO_pop_info();
336 }
337 if (int_error_hash)
338 ret = int_error_hash;
339 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
340
341 return ret;
342 }
343
344static void int_err_del(void)
345 {
346 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
347 if (int_error_hash)
348 {
349 lh_free(int_error_hash);
350 int_error_hash = NULL;
351 }
352 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
353 }
354
355static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)
356 {
357 ERR_STRING_DATA *p;
358 LHASH *hash;
359
360 err_fns_check();
361 hash = ERRFN(err_get)(0);
362 if (!hash)
363 return NULL;
364
365 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
366 p = (ERR_STRING_DATA *)lh_retrieve(hash, d);
367 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
368
369 return p;
370 }
371
372static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *d)
373 {
374 ERR_STRING_DATA *p;
375 LHASH *hash;
376
377 err_fns_check();
378 hash = ERRFN(err_get)(1);
379 if (!hash)
380 return NULL;
381
382 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
383 p = (ERR_STRING_DATA *)lh_insert(hash, d);
384 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
385
386 return p;
387 }
388
389static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *d)
390 {
391 ERR_STRING_DATA *p;
392 LHASH *hash;
393
394 err_fns_check();
395 hash = ERRFN(err_get)(0);
396 if (!hash)
397 return NULL;
398
399 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
400 p = (ERR_STRING_DATA *)lh_delete(hash, d);
401 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
402
403 return p;
404 }
405
406static LHASH *int_thread_get(int create)
407 {
408 LHASH *ret = NULL;
409
410 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
411 if (!int_thread_hash && create)
412 {
413 CRYPTO_push_info("int_thread_get (err.c)");
414 int_thread_hash = lh_new(pid_hash, pid_cmp);
415 CRYPTO_pop_info();
416 }
417 if (int_thread_hash)
418 ret = int_thread_hash;
419 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
420 return ret;
421 }
422
423static ERR_STATE *int_thread_get_item(const ERR_STATE *d)
424 {
425 ERR_STATE *p;
426 LHASH *hash;
427
428 err_fns_check();
429 hash = ERRFN(thread_get)(0);
430 if (!hash)
431 return NULL;
432
433 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
434 p = (ERR_STATE *)lh_retrieve(hash, d);
435 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
436
437 return p;
438 }
439
440static ERR_STATE *int_thread_set_item(ERR_STATE *d)
441 {
442 ERR_STATE *p;
443 LHASH *hash;
444
445 err_fns_check();
446 hash = ERRFN(thread_get)(1);
447 if (!hash)
448 return NULL;
449
450 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
451 p = (ERR_STATE *)lh_insert(hash, d);
452 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
453
454 return p;
455 }
456
457static void int_thread_del_item(const ERR_STATE *d)
458 {
459 ERR_STATE *p;
460 LHASH *hash;
461
462 err_fns_check();
463 hash = ERRFN(thread_get)(0);
464 if (!hash)
465 return;
466
467 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
468 p = (ERR_STATE *)lh_delete(hash, d);
469 /* make sure we don't leak memory */
470 if (int_thread_hash && (lh_num_items(int_thread_hash) == 0))
471 {
472 lh_free(int_thread_hash);
473 int_thread_hash = NULL;
474 }
475 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
476
477 if (p)
478 ERR_STATE_free(p);
479 }
480
481static int int_err_get_next_lib(void)
482 {
483 int ret;
484
485 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
486 ret = int_err_library_number++;
487 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
488
489 return ret;
490 }
491
492
493#define NUM_SYS_STR_REASONS 127
494#define LEN_SYS_STR_REASON 32
495
496static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];
497/* SYS_str_reasons is filled with copies of strerror() results at
498 * initialization.
499 * 'errno' values up to 127 should cover all usual errors,
500 * others will be displayed numerically by ERR_error_string.
501 * It is crucial that we have something for each reason code
502 * that occurs in ERR_str_reasons, or bogus reason strings
503 * will be returned for SYSerr(), which always gets an errno
504 * value and never one of those 'standard' reason codes. */
505
506static void build_SYS_str_reasons()
507 {
508 /* OPENSSL_malloc cannot be used here, use static storage instead */
509 static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON];
510 int i;
511 static int init = 1;
512
513 if (!init) return;
514
515 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
516
517 for (i = 1; i <= NUM_SYS_STR_REASONS; i++)
518 {
519 ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
520
521 str->error = (unsigned long)i;
522 if (str->string == NULL)
523 {
524 char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]);
525 char *src = strerror(i);
526 if (src != NULL)
527 {
528 strncpy(*dest, src, sizeof *dest);
529 (*dest)[sizeof *dest - 1] = '\0';
530 str->string = *dest;
531 }
532 }
533 if (str->string == NULL)
534 str->string = "unknown";
535 }
536
537 /* Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL},
538 * as required by ERR_load_strings. */
539
540 init = 0;
541
542 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
543 }
544#endif
545
546#define err_clear_data(p,i) \
547 if (((p)->err_data[i] != NULL) && \
548 (p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
549 { \
550 OPENSSL_free((p)->err_data[i]); \
551 (p)->err_data[i]=NULL; \
552 } \
553 (p)->err_data_flags[i]=0;
554
555static void ERR_STATE_free(ERR_STATE *s)
556 {
557 int i;
558
559 if (s == NULL)
560 return;
561
562 for (i=0; i<ERR_NUM_ERRORS; i++)
563 {
564 err_clear_data(s,i);
565 }
566 OPENSSL_free(s);
567 }
568
569void ERR_load_ERR_strings(void)
570 {
571 err_fns_check();
572#ifndef OPENSSL_NO_ERR
573 err_load_strings(0,ERR_str_libraries);
574 err_load_strings(0,ERR_str_reasons);
575 err_load_strings(ERR_LIB_SYS,ERR_str_functs);
576 build_SYS_str_reasons();
577 err_load_strings(ERR_LIB_SYS,SYS_str_reasons);
578#endif
579 }
580
581static void err_load_strings(int lib, ERR_STRING_DATA *str)
582 {
583 while (str->error)
584 {
585 str->error|=ERR_PACK(lib,0,0);
586 ERRFN(err_set_item)(str);
587 str++;
588 }
589 }
590
591void ERR_load_strings(int lib, ERR_STRING_DATA *str)
592 {
593 ERR_load_ERR_strings();
594 err_load_strings(lib, str);
595 }
596
597void ERR_unload_strings(int lib, ERR_STRING_DATA *str)
598 {
599 while (str->error)
600 {
601 str->error|=ERR_PACK(lib,0,0);
602 ERRFN(err_del_item)(str);
603 str++;
604 }
605 }
606
607void ERR_free_strings(void)
608 {
609 err_fns_check();
610 ERRFN(err_del)();
611 }
612
613/********************************************************/
614
615void ERR_put_error(int lib, int func, int reason, const char *file,
616 int line)
617 {
618 ERR_STATE *es;
619
620#ifdef _OSD_POSIX
621 /* In the BS2000-OSD POSIX subsystem, the compiler generates
622 * path names in the form "*POSIX(/etc/passwd)".
623 * This dirty hack strips them to something sensible.
624 * @@@ We shouldn't modify a const string, though.
625 */
626 if (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {
627 char *end;
628
629 /* Skip the "*POSIX(" prefix */
630 file += sizeof("*POSIX(")-1;
631 end = &file[strlen(file)-1];
632 if (*end == ')')
633 *end = '\0';
634 /* Optional: use the basename of the path only. */
635 if ((end = strrchr(file, '/')) != NULL)
636 file = &end[1];
637 }
638#endif
639 es=ERR_get_state();
640
641 es->top=(es->top+1)%ERR_NUM_ERRORS;
642 if (es->top == es->bottom)
643 es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
644 es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
645 es->err_file[es->top]=file;
646 es->err_line[es->top]=line;
647 err_clear_data(es,es->top);
648 }
649
650void ERR_clear_error(void)
651 {
652 int i;
653 ERR_STATE *es;
654
655 es=ERR_get_state();
656
657 for (i=0; i<ERR_NUM_ERRORS; i++)
658 {
659 es->err_buffer[i]=0;
660 err_clear_data(es,i);
661 es->err_file[i]=NULL;
662 es->err_line[i]= -1;
663 }
664 es->top=es->bottom=0;
665 }
666
667
668unsigned long ERR_get_error(void)
669 { return(get_error_values(1,0,NULL,NULL,NULL,NULL)); }
670
671unsigned long ERR_get_error_line(const char **file,
672 int *line)
673 { return(get_error_values(1,0,file,line,NULL,NULL)); }
674
675unsigned long ERR_get_error_line_data(const char **file, int *line,
676 const char **data, int *flags)
677 { return(get_error_values(1,0,file,line,data,flags)); }
678
679
680unsigned long ERR_peek_error(void)
681 { return(get_error_values(0,0,NULL,NULL,NULL,NULL)); }
682
683unsigned long ERR_peek_error_line(const char **file, int *line)
684 { return(get_error_values(0,0,file,line,NULL,NULL)); }
685
686unsigned long ERR_peek_error_line_data(const char **file, int *line,
687 const char **data, int *flags)
688 { return(get_error_values(0,0,file,line,data,flags)); }
689
690
691unsigned long ERR_peek_last_error(void)
692 { return(get_error_values(0,1,NULL,NULL,NULL,NULL)); }
693
694unsigned long ERR_peek_last_error_line(const char **file, int *line)
695 { return(get_error_values(0,1,file,line,NULL,NULL)); }
696
697unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
698 const char **data, int *flags)
699 { return(get_error_values(0,1,file,line,data,flags)); }
700
701
702static unsigned long get_error_values(int inc, int top, const char **file, int *line,
703 const char **data, int *flags)
704 {
705 int i=0;
706 ERR_STATE *es;
707 unsigned long ret;
708
709 es=ERR_get_state();
710
711 if (inc && top)
712 {
713 if (file) *file = "";
714 if (line) *line = 0;
715 if (data) *data = "";
716 if (flags) *flags = 0;
717
718 return ERR_R_INTERNAL_ERROR;
719 }
720
721 if (es->bottom == es->top) return 0;
722 if (top)
723 i=es->top; /* last error */
724 else
725 i=(es->bottom+1)%ERR_NUM_ERRORS; /* first error */
726
727 ret=es->err_buffer[i];
728 if (inc)
729 {
730 es->bottom=i;
731 es->err_buffer[i]=0;
732 }
733
734 if ((file != NULL) && (line != NULL))
735 {
736 if (es->err_file[i] == NULL)
737 {
738 *file="NA";
739 if (line != NULL) *line=0;
740 }
741 else
742 {
743 *file=es->err_file[i];
744 if (line != NULL) *line=es->err_line[i];
745 }
746 }
747
748 if (data == NULL)
749 {
750 if (inc)
751 {
752 err_clear_data(es, i);
753 }
754 }
755 else
756 {
757 if (es->err_data[i] == NULL)
758 {
759 *data="";
760 if (flags != NULL) *flags=0;
761 }
762 else
763 {
764 *data=es->err_data[i];
765 if (flags != NULL) *flags=es->err_data_flags[i];
766 }
767 }
768 return ret;
769 }
770
771void ERR_error_string_n(unsigned long e, char *buf, size_t len)
772 {
773 char lsbuf[64], fsbuf[64], rsbuf[64];
774 const char *ls,*fs,*rs;
775 unsigned long l,f,r;
776
777 l=ERR_GET_LIB(e);
778 f=ERR_GET_FUNC(e);
779 r=ERR_GET_REASON(e);
780
781 ls=ERR_lib_error_string(e);
782 fs=ERR_func_error_string(e);
783 rs=ERR_reason_error_string(e);
784
785 if (ls == NULL)
786 BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
787 if (fs == NULL)
788 BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
789 if (rs == NULL)
790 BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
791
792 BIO_snprintf(buf, len,"error:%08lX:%s:%s:%s", e, ls?ls:lsbuf,
793 fs?fs:fsbuf, rs?rs:rsbuf);
794 if (strlen(buf) == len-1)
795 {
796 /* output may be truncated; make sure we always have 5
797 * colon-separated fields, i.e. 4 colons ... */
798#define NUM_COLONS 4
799 if (len > NUM_COLONS) /* ... if possible */
800 {
801 int i;
802 char *s = buf;
803
804 for (i = 0; i < NUM_COLONS; i++)
805 {
806 char *colon = strchr(s, ':');
807 if (colon == NULL || colon > &buf[len-1] - NUM_COLONS + i)
808 {
809 /* set colon no. i at last possible position
810 * (buf[len-1] is the terminating 0)*/
811 colon = &buf[len-1] - NUM_COLONS + i;
812 *colon = ':';
813 }
814 s = colon + 1;
815 }
816 }
817 }
818 }
819
820/* BAD for multi-threading: uses a local buffer if ret == NULL */
821/* ERR_error_string_n should be used instead for ret != NULL
822 * as ERR_error_string cannot know how large the buffer is */
823char *ERR_error_string(unsigned long e, char *ret)
824 {
825 static char buf[256];
826
827 if (ret == NULL) ret=buf;
828 ERR_error_string_n(e, ret, 256);
829
830 return ret;
831 }
832
833LHASH *ERR_get_string_table(void)
834 {
835 err_fns_check();
836 return ERRFN(err_get)(0);
837 }
838
839LHASH *ERR_get_err_state_table(void)
840 {
841 err_fns_check();
842 return ERRFN(thread_get)(0);
843 }
844
845const char *ERR_lib_error_string(unsigned long e)
846 {
847 ERR_STRING_DATA d,*p;
848 unsigned long l;
849
850 err_fns_check();
851 l=ERR_GET_LIB(e);
852 d.error=ERR_PACK(l,0,0);
853 p=ERRFN(err_get_item)(&d);
854 return((p == NULL)?NULL:p->string);
855 }
856
857const char *ERR_func_error_string(unsigned long e)
858 {
859 ERR_STRING_DATA d,*p;
860 unsigned long l,f;
861
862 err_fns_check();
863 l=ERR_GET_LIB(e);
864 f=ERR_GET_FUNC(e);
865 d.error=ERR_PACK(l,f,0);
866 p=ERRFN(err_get_item)(&d);
867 return((p == NULL)?NULL:p->string);
868 }
869
870const char *ERR_reason_error_string(unsigned long e)
871 {
872 ERR_STRING_DATA d,*p=NULL;
873 unsigned long l,r;
874
875 err_fns_check();
876 l=ERR_GET_LIB(e);
877 r=ERR_GET_REASON(e);
878 d.error=ERR_PACK(l,0,r);
879 p=ERRFN(err_get_item)(&d);
880 if (!p)
881 {
882 d.error=ERR_PACK(0,0,r);
883 p=ERRFN(err_get_item)(&d);
884 }
885 return((p == NULL)?NULL:p->string);
886 }
887
888/* static unsigned long err_hash(ERR_STRING_DATA *a) */
889static unsigned long err_hash(const void *a_void)
890 {
891 unsigned long ret,l;
892
893 l=((ERR_STRING_DATA *)a_void)->error;
894 ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l);
895 return(ret^ret%19*13);
896 }
897
898/* static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b) */
899static int err_cmp(const void *a_void, const void *b_void)
900 {
901 return((int)(((ERR_STRING_DATA *)a_void)->error -
902 ((ERR_STRING_DATA *)b_void)->error));
903 }
904
905/* static unsigned long pid_hash(ERR_STATE *a) */
906static unsigned long pid_hash(const void *a_void)
907 {
908 return(((ERR_STATE *)a_void)->pid*13);
909 }
910
911/* static int pid_cmp(ERR_STATE *a, ERR_STATE *b) */
912static int pid_cmp(const void *a_void, const void *b_void)
913 {
914 return((int)((long)((ERR_STATE *)a_void)->pid -
915 (long)((ERR_STATE *)b_void)->pid));
916 }
917
918void ERR_remove_state(unsigned long pid)
919 {
920 ERR_STATE tmp;
921
922 err_fns_check();
923 if (pid == 0)
924 pid=(unsigned long)CRYPTO_thread_id();
925 tmp.pid=pid;
926 /* thread_del_item automatically destroys the LHASH if the number of
927 * items reaches zero. */
928 ERRFN(thread_del_item)(&tmp);
929 }
930
931ERR_STATE *ERR_get_state(void)
932 {
933 static ERR_STATE fallback;
934 ERR_STATE *ret,tmp,*tmpp=NULL;
935 int i;
936 unsigned long pid;
937
938 err_fns_check();
939 pid=(unsigned long)CRYPTO_thread_id();
940 tmp.pid=pid;
941 ret=ERRFN(thread_get_item)(&tmp);
942
943 /* ret == the error state, if NULL, make a new one */
944 if (ret == NULL)
945 {
946 ret=(ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE));
947 if (ret == NULL) return(&fallback);
948 ret->pid=pid;
949 ret->top=0;
950 ret->bottom=0;
951 for (i=0; i<ERR_NUM_ERRORS; i++)
952 {
953 ret->err_data[i]=NULL;
954 ret->err_data_flags[i]=0;
955 }
956 tmpp = ERRFN(thread_set_item)(ret);
957 /* To check if insertion failed, do a get. */
958 if (ERRFN(thread_get_item)(ret) != ret)
959 {
960 ERR_STATE_free(ret); /* could not insert it */
961 return(&fallback);
962 }
963 /* If a race occured in this function and we came second, tmpp
964 * is the first one that we just replaced. */
965 if (tmpp)
966 ERR_STATE_free(tmpp);
967 }
968 return ret;
969 }
970
971int ERR_get_next_error_library(void)
972 {
973 err_fns_check();
974 return ERRFN(get_next_lib)();
975 }
976
977void ERR_set_error_data(char *data, int flags)
978 {
979 ERR_STATE *es;
980 int i;
981
982 es=ERR_get_state();
983
984 i=es->top;
985 if (i == 0)
986 i=ERR_NUM_ERRORS-1;
987
988 err_clear_data(es,i);
989 es->err_data[i]=data;
990 es->err_data_flags[i]=flags;
991 }
992
993void ERR_add_error_data(int num, ...)
994 {
995 va_list args;
996 int i,n,s;
997 char *str,*p,*a;
998
999 s=80;
1000 str=OPENSSL_malloc(s+1);
1001 if (str == NULL) return;
1002 str[0]='\0';
1003
1004 va_start(args, num);
1005 n=0;
1006 for (i=0; i<num; i++)
1007 {
1008 a=va_arg(args, char*);
1009 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
1010 if (a != NULL)
1011 {
1012 n+=strlen(a);
1013 if (n > s)
1014 {
1015 s=n+20;
1016 p=OPENSSL_realloc(str,s+1);
1017 if (p == NULL)
1018 {
1019 OPENSSL_free(str);
1020 goto err;
1021 }
1022 else
1023 str=p;
1024 }
1025 strcat(str,a);
1026 }
1027 }
1028 ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING);
1029
1030err:
1031 va_end(args);
1032 }
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-12-09 06:06:54 +0000