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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 {ERR_PACK(0,SYS_F_FREAD,0), "fread"},
170 {0,NULL},
171 };
172
173static ERR_STRING_DATA ERR_str_reasons[]=
174 {
175{ERR_R_SYS_LIB ,"system lib"},
176{ERR_R_BN_LIB ,"BN lib"},
177{ERR_R_RSA_LIB ,"RSA lib"},
178{ERR_R_DH_LIB ,"DH lib"},
179{ERR_R_EVP_LIB ,"EVP lib"},
180{ERR_R_BUF_LIB ,"BUF lib"},
181{ERR_R_OBJ_LIB ,"OBJ lib"},
182{ERR_R_PEM_LIB ,"PEM lib"},
183{ERR_R_DSA_LIB ,"DSA lib"},
184{ERR_R_X509_LIB ,"X509 lib"},
185{ERR_R_ASN1_LIB ,"ASN1 lib"},
186{ERR_R_CONF_LIB ,"CONF lib"},
187{ERR_R_CRYPTO_LIB ,"CRYPTO lib"},
188{ERR_R_EC_LIB ,"EC lib"},
189{ERR_R_SSL_LIB ,"SSL lib"},
190{ERR_R_BIO_LIB ,"BIO lib"},
191{ERR_R_PKCS7_LIB ,"PKCS7 lib"},
192{ERR_R_X509V3_LIB ,"X509V3 lib"},
193{ERR_R_PKCS12_LIB ,"PKCS12 lib"},
194{ERR_R_RAND_LIB ,"RAND lib"},
195{ERR_R_DSO_LIB ,"DSO lib"},
196{ERR_R_ENGINE_LIB ,"ENGINE lib"},
197{ERR_R_OCSP_LIB ,"OCSP lib"},
198
199{ERR_R_NESTED_ASN1_ERROR ,"nested asn1 error"},
200{ERR_R_BAD_ASN1_OBJECT_HEADER ,"bad asn1 object header"},
201{ERR_R_BAD_GET_ASN1_OBJECT_CALL ,"bad get asn1 object call"},
202{ERR_R_EXPECTING_AN_ASN1_SEQUENCE ,"expecting an asn1 sequence"},
203{ERR_R_ASN1_LENGTH_MISMATCH ,"asn1 length mismatch"},
204{ERR_R_MISSING_ASN1_EOS ,"missing asn1 eos"},
205
206{ERR_R_FATAL ,"fatal"},
207{ERR_R_MALLOC_FAILURE ,"malloc failure"},
208{ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED ,"called a function you should not call"},
209{ERR_R_PASSED_NULL_PARAMETER ,"passed a null parameter"},
210{ERR_R_INTERNAL_ERROR ,"internal error"},
211
212{0,NULL},
213 };
214
215
216/* Define the predeclared (but externally opaque) "ERR_FNS" type */
217struct st_ERR_FNS
218 {
219 /* Works on the "error_hash" string table */
220 LHASH *(*cb_err_get)(int create);
221 void (*cb_err_del)(void);
222 ERR_STRING_DATA *(*cb_err_get_item)(const ERR_STRING_DATA *);
223 ERR_STRING_DATA *(*cb_err_set_item)(ERR_STRING_DATA *);
224 ERR_STRING_DATA *(*cb_err_del_item)(ERR_STRING_DATA *);
225 /* Works on the "thread_hash" error-state table */
226 LHASH *(*cb_thread_get)(int create);
227 ERR_STATE *(*cb_thread_get_item)(const ERR_STATE *);
228 ERR_STATE *(*cb_thread_set_item)(ERR_STATE *);
229 void (*cb_thread_del_item)(const ERR_STATE *);
230 /* Returns the next available error "library" numbers */
231 int (*cb_get_next_lib)(void);
232 };
233
234/* Predeclarations of the "err_defaults" functions */
235static LHASH *int_err_get(int create);
236static void int_err_del(void);
237static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
238static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *);
239static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *);
240static LHASH *int_thread_get(int create);
241static ERR_STATE *int_thread_get_item(const ERR_STATE *);
242static ERR_STATE *int_thread_set_item(ERR_STATE *);
243static void int_thread_del_item(const ERR_STATE *);
244static int int_err_get_next_lib(void);
245/* The static ERR_FNS table using these defaults functions */
246static const ERR_FNS err_defaults =
247 {
248 int_err_get,
249 int_err_del,
250 int_err_get_item,
251 int_err_set_item,
252 int_err_del_item,
253 int_thread_get,
254 int_thread_get_item,
255 int_thread_set_item,
256 int_thread_del_item,
257 int_err_get_next_lib
258 };
259
260/* The replacable table of ERR_FNS functions we use at run-time */
261static const ERR_FNS *err_fns = NULL;
262
263/* Eg. rather than using "err_get()", use "ERRFN(err_get)()". */
264#define ERRFN(a) err_fns->cb_##a
265
266/* The internal state used by "err_defaults" - as such, the setting, reading,
267 * creating, and deleting of this data should only be permitted via the
268 * "err_defaults" functions. This way, a linked module can completely defer all
269 * ERR state operation (together with requisite locking) to the implementations
270 * and state in the loading application. */
271static LHASH *int_error_hash = NULL;
272static LHASH *int_thread_hash = NULL;
273static int int_err_library_number= ERR_LIB_USER;
274
275/* Internal function that checks whether "err_fns" is set and if not, sets it to
276 * the defaults. */
277static void err_fns_check(void)
278 {
279 if (err_fns) return;
280
281 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
282 if (!err_fns)
283 err_fns = &err_defaults;
284 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
285 }
286
287/* API functions to get or set the underlying ERR functions. */
288
289const ERR_FNS *ERR_get_implementation(void)
290 {
291 err_fns_check();
292 return err_fns;
293 }
294
295int ERR_set_implementation(const ERR_FNS *fns)
296 {
297 int ret = 0;
298
299 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
300 /* It's too late if 'err_fns' is non-NULL. BTW: not much point setting
301 * an error is there?! */
302 if (!err_fns)
303 {
304 err_fns = fns;
305 ret = 1;
306 }
307 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
308 return ret;
309 }
310
311/* These are the callbacks provided to "lh_new()" when creating the LHASH tables
312 * internal to the "err_defaults" implementation. */
313
314/* static unsigned long err_hash(ERR_STRING_DATA *a); */
315static unsigned long err_hash(const void *a_void);
316/* static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b); */
317static int err_cmp(const void *a_void, const void *b_void);
318/* static unsigned long pid_hash(ERR_STATE *pid); */
319static unsigned long pid_hash(const void *pid_void);
320/* static int pid_cmp(ERR_STATE *a,ERR_STATE *pid); */
321static int pid_cmp(const void *a_void,const void *pid_void);
322static unsigned long get_error_values(int inc,int top,const char **file,int *line,
323 const char **data,int *flags);
324
325/* The internal functions used in the "err_defaults" implementation */
326
327static LHASH *int_err_get(int create)
328 {
329 LHASH *ret = NULL;
330
331 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
332 if (!int_error_hash && create)
333 {
334 CRYPTO_push_info("int_err_get (err.c)");
335 int_error_hash = lh_new(err_hash, err_cmp);
336 CRYPTO_pop_info();
337 }
338 if (int_error_hash)
339 ret = int_error_hash;
340 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
341
342 return ret;
343 }
344
345static void int_err_del(void)
346 {
347 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
348 if (int_error_hash)
349 {
350 lh_free(int_error_hash);
351 int_error_hash = NULL;
352 }
353 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
354 }
355
356static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)
357 {
358 ERR_STRING_DATA *p;
359 LHASH *hash;
360
361 err_fns_check();
362 hash = ERRFN(err_get)(0);
363 if (!hash)
364 return NULL;
365
366 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
367 p = (ERR_STRING_DATA *)lh_retrieve(hash, d);
368 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
369
370 return p;
371 }
372
373static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *d)
374 {
375 ERR_STRING_DATA *p;
376 LHASH *hash;
377
378 err_fns_check();
379 hash = ERRFN(err_get)(1);
380 if (!hash)
381 return NULL;
382
383 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
384 p = (ERR_STRING_DATA *)lh_insert(hash, d);
385 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
386
387 return p;
388 }
389
390static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *d)
391 {
392 ERR_STRING_DATA *p;
393 LHASH *hash;
394
395 err_fns_check();
396 hash = ERRFN(err_get)(0);
397 if (!hash)
398 return NULL;
399
400 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
401 p = (ERR_STRING_DATA *)lh_delete(hash, d);
402 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
403
404 return p;
405 }
406
407static LHASH *int_thread_get(int create)
408 {
409 LHASH *ret = NULL;
410
411 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
412 if (!int_thread_hash && create)
413 {
414 CRYPTO_push_info("int_thread_get (err.c)");
415 int_thread_hash = lh_new(pid_hash, pid_cmp);
416 CRYPTO_pop_info();
417 }
418 if (int_thread_hash)
419 ret = int_thread_hash;
420 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
421 return ret;
422 }
423
424static ERR_STATE *int_thread_get_item(const ERR_STATE *d)
425 {
426 ERR_STATE *p;
427 LHASH *hash;
428
429 err_fns_check();
430 hash = ERRFN(thread_get)(0);
431 if (!hash)
432 return NULL;
433
434 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
435 p = (ERR_STATE *)lh_retrieve(hash, d);
436 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
437
438 return p;
439 }
440
441static ERR_STATE *int_thread_set_item(ERR_STATE *d)
442 {
443 ERR_STATE *p;
444 LHASH *hash;
445
446 err_fns_check();
447 hash = ERRFN(thread_get)(1);
448 if (!hash)
449 return NULL;
450
451 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
452 p = (ERR_STATE *)lh_insert(hash, d);
453 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
454
455 return p;
456 }
457
458static void int_thread_del_item(const ERR_STATE *d)
459 {
460 ERR_STATE *p;
461 LHASH *hash;
462
463 err_fns_check();
464 hash = ERRFN(thread_get)(0);
465 if (!hash)
466 return;
467
468 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
469 p = (ERR_STATE *)lh_delete(hash, d);
470 /* make sure we don't leak memory */
471 if (int_thread_hash && (lh_num_items(int_thread_hash) == 0))
472 {
473 lh_free(int_thread_hash);
474 int_thread_hash = NULL;
475 }
476 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
477
478 if (p)
479 ERR_STATE_free(p);
480 }
481
482static int int_err_get_next_lib(void)
483 {
484 int ret;
485
486 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
487 ret = int_err_library_number++;
488 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
489
490 return ret;
491 }
492
493
494#define NUM_SYS_STR_REASONS 127
495#define LEN_SYS_STR_REASON 32
496
497static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];
498/* SYS_str_reasons is filled with copies of strerror() results at
499 * initialization.
500 * 'errno' values up to 127 should cover all usual errors,
501 * others will be displayed numerically by ERR_error_string.
502 * It is crucial that we have something for each reason code
503 * that occurs in ERR_str_reasons, or bogus reason strings
504 * will be returned for SYSerr(), which always gets an errno
505 * value and never one of those 'standard' reason codes. */
506
507static void build_SYS_str_reasons()
508 {
509 /* OPENSSL_malloc cannot be used here, use static storage instead */
510 static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON];
511 int i;
512 static int init = 1;
513
514 if (!init) return;
515
516 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
517
518 for (i = 1; i <= NUM_SYS_STR_REASONS; i++)
519 {
520 ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
521
522 str->error = (unsigned long)i;
523 if (str->string == NULL)
524 {
525 char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]);
526 char *src = strerror(i);
527 if (src != NULL)
528 {
529 strncpy(*dest, src, sizeof *dest);
530 (*dest)[sizeof *dest - 1] = '\0';
531 str->string = *dest;
532 }
533 }
534 if (str->string == NULL)
535 str->string = "unknown";
536 }
537
538 /* Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL},
539 * as required by ERR_load_strings. */
540
541 init = 0;
542
543 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
544 }
545#endif
546
547#define err_clear_data(p,i) \
548 if (((p)->err_data[i] != NULL) && \
549 (p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
550 { \
551 OPENSSL_free((p)->err_data[i]); \
552 (p)->err_data[i]=NULL; \
553 } \
554 (p)->err_data_flags[i]=0;
555
556static void ERR_STATE_free(ERR_STATE *s)
557 {
558 int i;
559
560 if (s == NULL)
561 return;
562
563 for (i=0; i<ERR_NUM_ERRORS; i++)
564 {
565 err_clear_data(s,i);
566 }
567 OPENSSL_free(s);
568 }
569
570void ERR_load_ERR_strings(void)
571 {
572 err_fns_check();
573#ifndef OPENSSL_NO_ERR
574 err_load_strings(0,ERR_str_libraries);
575 err_load_strings(0,ERR_str_reasons);
576 err_load_strings(ERR_LIB_SYS,ERR_str_functs);
577 build_SYS_str_reasons();
578 err_load_strings(ERR_LIB_SYS,SYS_str_reasons);
579#endif
580 }
581
582static void err_load_strings(int lib, ERR_STRING_DATA *str)
583 {
584 while (str->error)
585 {
586 str->error|=ERR_PACK(lib,0,0);
587 ERRFN(err_set_item)(str);
588 str++;
589 }
590 }
591
592void ERR_load_strings(int lib, ERR_STRING_DATA *str)
593 {
594 ERR_load_ERR_strings();
595 err_load_strings(lib, str);
596 }
597
598void ERR_unload_strings(int lib, ERR_STRING_DATA *str)
599 {
600 while (str->error)
601 {
602 str->error|=ERR_PACK(lib,0,0);
603 ERRFN(err_del_item)(str);
604 str++;
605 }
606 }
607
608void ERR_free_strings(void)
609 {
610 err_fns_check();
611 ERRFN(err_del)();
612 }
613
614/********************************************************/
615
616void ERR_put_error(int lib, int func, int reason, const char *file,
617 int line)
618 {
619 ERR_STATE *es;
620
621#ifdef _OSD_POSIX
622 /* In the BS2000-OSD POSIX subsystem, the compiler generates
623 * path names in the form "*POSIX(/etc/passwd)".
624 * This dirty hack strips them to something sensible.
625 * @@@ We shouldn't modify a const string, though.
626 */
627 if (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {
628 char *end;
629
630 /* Skip the "*POSIX(" prefix */
631 file += sizeof("*POSIX(")-1;
632 end = &file[strlen(file)-1];
633 if (*end == ')')
634 *end = '\0';
635 /* Optional: use the basename of the path only. */
636 if ((end = strrchr(file, '/')) != NULL)
637 file = &end[1];
638 }
639#endif
640 es=ERR_get_state();
641
642 es->top=(es->top+1)%ERR_NUM_ERRORS;
643 if (es->top == es->bottom)
644 es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
645 es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
646 es->err_file[es->top]=file;
647 es->err_line[es->top]=line;
648 err_clear_data(es,es->top);
649 }
650
651void ERR_clear_error(void)
652 {
653 int i;
654 ERR_STATE *es;
655
656 es=ERR_get_state();
657
658 for (i=0; i<ERR_NUM_ERRORS; i++)
659 {
660 es->err_buffer[i]=0;
661 err_clear_data(es,i);
662 es->err_file[i]=NULL;
663 es->err_line[i]= -1;
664 }
665 es->top=es->bottom=0;
666 }
667
668
669unsigned long ERR_get_error(void)
670 { return(get_error_values(1,0,NULL,NULL,NULL,NULL)); }
671
672unsigned long ERR_get_error_line(const char **file,
673 int *line)
674 { return(get_error_values(1,0,file,line,NULL,NULL)); }
675
676unsigned long ERR_get_error_line_data(const char **file, int *line,
677 const char **data, int *flags)
678 { return(get_error_values(1,0,file,line,data,flags)); }
679
680
681unsigned long ERR_peek_error(void)
682 { return(get_error_values(0,0,NULL,NULL,NULL,NULL)); }
683
684unsigned long ERR_peek_error_line(const char **file, int *line)
685 { return(get_error_values(0,0,file,line,NULL,NULL)); }
686
687unsigned long ERR_peek_error_line_data(const char **file, int *line,
688 const char **data, int *flags)
689 { return(get_error_values(0,0,file,line,data,flags)); }
690
691
692unsigned long ERR_peek_last_error(void)
693 { return(get_error_values(0,1,NULL,NULL,NULL,NULL)); }
694
695unsigned long ERR_peek_last_error_line(const char **file, int *line)
696 { return(get_error_values(0,1,file,line,NULL,NULL)); }
697
698unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
699 const char **data, int *flags)
700 { return(get_error_values(0,1,file,line,data,flags)); }
701
702
703static unsigned long get_error_values(int inc, int top, const char **file, int *line,
704 const char **data, int *flags)
705 {
706 int i=0;
707 ERR_STATE *es;
708 unsigned long ret;
709
710 es=ERR_get_state();
711
712 if (inc && top)
713 {
714 if (file) *file = "";
715 if (line) *line = 0;
716 if (data) *data = "";
717 if (flags) *flags = 0;
718
719 return ERR_R_INTERNAL_ERROR;
720 }
721
722 if (es->bottom == es->top) return 0;
723 if (top)
724 i=es->top; /* last error */
725 else
726 i=(es->bottom+1)%ERR_NUM_ERRORS; /* first error */
727
728 ret=es->err_buffer[i];
729 if (inc)
730 {
731 es->bottom=i;
732 es->err_buffer[i]=0;
733 }
734
735 if ((file != NULL) && (line != NULL))
736 {
737 if (es->err_file[i] == NULL)
738 {
739 *file="NA";
740 if (line != NULL) *line=0;
741 }
742 else
743 {
744 *file=es->err_file[i];
745 if (line != NULL) *line=es->err_line[i];
746 }
747 }
748
749 if (data == NULL)
750 {
751 if (inc)
752 {
753 err_clear_data(es, i);
754 }
755 }
756 else
757 {
758 if (es->err_data[i] == NULL)
759 {
760 *data="";
761 if (flags != NULL) *flags=0;
762 }
763 else
764 {
765 *data=es->err_data[i];
766 if (flags != NULL) *flags=es->err_data_flags[i];
767 }
768 }
769 return ret;
770 }
771
772void ERR_error_string_n(unsigned long e, char *buf, size_t len)
773 {
774 char lsbuf[64], fsbuf[64], rsbuf[64];
775 const char *ls,*fs,*rs;
776 unsigned long l,f,r;
777
778 l=ERR_GET_LIB(e);
779 f=ERR_GET_FUNC(e);
780 r=ERR_GET_REASON(e);
781
782 ls=ERR_lib_error_string(e);
783 fs=ERR_func_error_string(e);
784 rs=ERR_reason_error_string(e);
785
786 if (ls == NULL)
787 BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
788 if (fs == NULL)
789 BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
790 if (rs == NULL)
791 BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
792
793 BIO_snprintf(buf, len,"error:%08lX:%s:%s:%s", e, ls?ls:lsbuf,
794 fs?fs:fsbuf, rs?rs:rsbuf);
795 if (strlen(buf) == len-1)
796 {
797 /* output may be truncated; make sure we always have 5
798 * colon-separated fields, i.e. 4 colons ... */
799#define NUM_COLONS 4
800 if (len > NUM_COLONS) /* ... if possible */
801 {
802 int i;
803 char *s = buf;
804
805 for (i = 0; i < NUM_COLONS; i++)
806 {
807 char *colon = strchr(s, ':');
808 if (colon == NULL || colon > &buf[len-1] - NUM_COLONS + i)
809 {
810 /* set colon no. i at last possible position
811 * (buf[len-1] is the terminating 0)*/
812 colon = &buf[len-1] - NUM_COLONS + i;
813 *colon = ':';
814 }
815 s = colon + 1;
816 }
817 }
818 }
819 }
820
821/* BAD for multi-threading: uses a local buffer if ret == NULL */
822/* ERR_error_string_n should be used instead for ret != NULL
823 * as ERR_error_string cannot know how large the buffer is */
824char *ERR_error_string(unsigned long e, char *ret)
825 {
826 static char buf[256];
827
828 if (ret == NULL) ret=buf;
829 ERR_error_string_n(e, ret, 256);
830
831 return ret;
832 }
833
834LHASH *ERR_get_string_table(void)
835 {
836 err_fns_check();
837 return ERRFN(err_get)(0);
838 }
839
840LHASH *ERR_get_err_state_table(void)
841 {
842 err_fns_check();
843 return ERRFN(thread_get)(0);
844 }
845
846const char *ERR_lib_error_string(unsigned long e)
847 {
848 ERR_STRING_DATA d,*p;
849 unsigned long l;
850
851 err_fns_check();
852 l=ERR_GET_LIB(e);
853 d.error=ERR_PACK(l,0,0);
854 p=ERRFN(err_get_item)(&d);
855 return((p == NULL)?NULL:p->string);
856 }
857
858const char *ERR_func_error_string(unsigned long e)
859 {
860 ERR_STRING_DATA d,*p;
861 unsigned long l,f;
862
863 err_fns_check();
864 l=ERR_GET_LIB(e);
865 f=ERR_GET_FUNC(e);
866 d.error=ERR_PACK(l,f,0);
867 p=ERRFN(err_get_item)(&d);
868 return((p == NULL)?NULL:p->string);
869 }
870
871const char *ERR_reason_error_string(unsigned long e)
872 {
873 ERR_STRING_DATA d,*p=NULL;
874 unsigned long l,r;
875
876 err_fns_check();
877 l=ERR_GET_LIB(e);
878 r=ERR_GET_REASON(e);
879 d.error=ERR_PACK(l,0,r);
880 p=ERRFN(err_get_item)(&d);
881 if (!p)
882 {
883 d.error=ERR_PACK(0,0,r);
884 p=ERRFN(err_get_item)(&d);
885 }
886 return((p == NULL)?NULL:p->string);
887 }
888
889/* static unsigned long err_hash(ERR_STRING_DATA *a) */
890static unsigned long err_hash(const void *a_void)
891 {
892 unsigned long ret,l;
893
894 l=((ERR_STRING_DATA *)a_void)->error;
895 ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l);
896 return(ret^ret%19*13);
897 }
898
899/* static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b) */
900static int err_cmp(const void *a_void, const void *b_void)
901 {
902 return((int)(((ERR_STRING_DATA *)a_void)->error -
903 ((ERR_STRING_DATA *)b_void)->error));
904 }
905
906/* static unsigned long pid_hash(ERR_STATE *a) */
907static unsigned long pid_hash(const void *a_void)
908 {
909 return(((ERR_STATE *)a_void)->pid*13);
910 }
911
912/* static int pid_cmp(ERR_STATE *a, ERR_STATE *b) */
913static int pid_cmp(const void *a_void, const void *b_void)
914 {
915 return((int)((long)((ERR_STATE *)a_void)->pid -
916 (long)((ERR_STATE *)b_void)->pid));
917 }
918
919void ERR_remove_state(unsigned long pid)
920 {
921 ERR_STATE tmp;
922
923 err_fns_check();
924 if (pid == 0)
925 pid=(unsigned long)CRYPTO_thread_id();
926 tmp.pid=pid;
927 /* thread_del_item automatically destroys the LHASH if the number of
928 * items reaches zero. */
929 ERRFN(thread_del_item)(&tmp);
930 }
931
932ERR_STATE *ERR_get_state(void)
933 {
934 static ERR_STATE fallback;
935 ERR_STATE *ret,tmp,*tmpp=NULL;
936 int i;
937 unsigned long pid;
938
939 err_fns_check();
940 pid=(unsigned long)CRYPTO_thread_id();
941 tmp.pid=pid;
942 ret=ERRFN(thread_get_item)(&tmp);
943
944 /* ret == the error state, if NULL, make a new one */
945 if (ret == NULL)
946 {
947 ret=(ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE));
948 if (ret == NULL) return(&fallback);
949 ret->pid=pid;
950 ret->top=0;
951 ret->bottom=0;
952 for (i=0; i<ERR_NUM_ERRORS; i++)
953 {
954 ret->err_data[i]=NULL;
955 ret->err_data_flags[i]=0;
956 }
957 tmpp = ERRFN(thread_set_item)(ret);
958 /* To check if insertion failed, do a get. */
959 if (ERRFN(thread_get_item)(ret) != ret)
960 {
961 ERR_STATE_free(ret); /* could not insert it */
962 return(&fallback);
963 }
964 /* If a race occured in this function and we came second, tmpp
965 * is the first one that we just replaced. */
966 if (tmpp)
967 ERR_STATE_free(tmpp);
968 }
969 return ret;
970 }
971
972int ERR_get_next_error_library(void)
973 {
974 err_fns_check();
975 return ERRFN(get_next_lib)();
976 }
977
978void ERR_set_error_data(char *data, int flags)
979 {
980 ERR_STATE *es;
981 int i;
982
983 es=ERR_get_state();
984
985 i=es->top;
986 if (i == 0)
987 i=ERR_NUM_ERRORS-1;
988
989 err_clear_data(es,i);
990 es->err_data[i]=data;
991 es->err_data_flags[i]=flags;
992 }
993
994void ERR_add_error_data(int num, ...)
995 {
996 va_list args;
997 int i,n,s;
998 char *str,*p,*a;
999
1000 s=80;
1001 str=OPENSSL_malloc(s+1);
1002 if (str == NULL) return;
1003 str[0]='\0';
1004
1005 va_start(args, num);
1006 n=0;
1007 for (i=0; i<num; i++)
1008 {
1009 a=va_arg(args, char*);
1010 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
1011 if (a != NULL)
1012 {
1013 n+=strlen(a);
1014 if (n > s)
1015 {
1016 s=n+20;
1017 p=OPENSSL_realloc(str,s+1);
1018 if (p == NULL)
1019 {
1020 OPENSSL_free(str);
1021 goto err;
1022 }
1023 else
1024 str=p;
1025 }
1026 strcat(str,a);
1027 }
1028 }
1029 ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING);
1030
1031err:
1032 va_end(args);
1033 }
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-12 00:38:16 +0000