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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) 1998-2000 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
122
123static LHASH *error_hash=NULL;
124static LHASH *thread_hash=NULL;
125
126static unsigned long err_hash(ERR_STRING_DATA *a);
127static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b);
128static unsigned long pid_hash(ERR_STATE *pid);
129static int pid_cmp(ERR_STATE *a,ERR_STATE *pid);
130static unsigned long get_error_values(int inc,const char **file,int *line,
131 const char **data,int *flags);
132static void ERR_STATE_free(ERR_STATE *s);
133#ifndef NO_ERR
134static ERR_STRING_DATA ERR_str_libraries[]=
135 {
136{ERR_PACK(ERR_LIB_NONE,0,0) ,"unknown library"},
137{ERR_PACK(ERR_LIB_SYS,0,0) ,"system library"},
138{ERR_PACK(ERR_LIB_BN,0,0) ,"bignum routines"},
139{ERR_PACK(ERR_LIB_RSA,0,0) ,"rsa routines"},
140{ERR_PACK(ERR_LIB_DSA,0,0) ,"dsa routines"},
141{ERR_PACK(ERR_LIB_DH,0,0) ,"Diffie-Hellman routines"},
142{ERR_PACK(ERR_LIB_EVP,0,0) ,"digital envelope routines"},
143{ERR_PACK(ERR_LIB_BUF,0,0) ,"memory buffer routines"},
144{ERR_PACK(ERR_LIB_BIO,0,0) ,"BIO routines"},
145{ERR_PACK(ERR_LIB_OBJ,0,0) ,"object identifier routines"},
146{ERR_PACK(ERR_LIB_PEM,0,0) ,"PEM routines"},
147{ERR_PACK(ERR_LIB_ASN1,0,0) ,"asn1 encoding routines"},
148{ERR_PACK(ERR_LIB_X509,0,0) ,"x509 certificate routines"},
149{ERR_PACK(ERR_LIB_CONF,0,0) ,"configuration file routines"},
150{ERR_PACK(ERR_LIB_METH,0,0) ,"X509 lookup 'method' routines"},
151{ERR_PACK(ERR_LIB_SSL,0,0) ,"SSL routines"},
152{ERR_PACK(ERR_LIB_RSAREF,0,0) ,"RSAref routines"},
153{ERR_PACK(ERR_LIB_PROXY,0,0) ,"Proxy routines"},
154{ERR_PACK(ERR_LIB_BIO,0,0) ,"BIO routines"},
155{ERR_PACK(ERR_LIB_PKCS7,0,0) ,"PKCS7 routines"},
156{ERR_PACK(ERR_LIB_X509V3,0,0) ,"X509 V3 routines"},
157{ERR_PACK(ERR_LIB_PKCS12,0,0) ,"PKCS12 routines"},
158{ERR_PACK(ERR_LIB_RAND,0,0) ,"random number generator"},
159{ERR_PACK(ERR_LIB_DSO,0,0) ,"DSO support routines"},
160{ERR_PACK(ERR_LIB_ENGINE,0,0) ,"engine routines"},
161{0,NULL},
162 };
163
164static ERR_STRING_DATA ERR_str_functs[]=
165 {
166 {ERR_PACK(0,SYS_F_FOPEN,0), "fopen"},
167 {ERR_PACK(0,SYS_F_CONNECT,0), "connect"},
168 {ERR_PACK(0,SYS_F_GETSERVBYNAME,0), "getservbyname"},
169 {ERR_PACK(0,SYS_F_SOCKET,0), "socket"},
170 {ERR_PACK(0,SYS_F_IOCTLSOCKET,0), "ioctlsocket"},
171 {ERR_PACK(0,SYS_F_BIND,0), "bind"},
172 {ERR_PACK(0,SYS_F_LISTEN,0), "listen"},
173 {ERR_PACK(0,SYS_F_ACCEPT,0), "accept"},
174#ifdef WINDOWS
175 {ERR_PACK(0,SYS_F_WSASTARTUP,0), "WSAstartup"},
176#endif
177 {ERR_PACK(0,SYS_F_OPENDIR,0), "opendir"},
178 {0,NULL},
179 };
180
181static ERR_STRING_DATA ERR_str_reasons[]=
182 {
183{ERR_R_FATAL ,"fatal"},
184{ERR_R_SYS_LIB ,"system lib"},
185{ERR_R_BN_LIB ,"BN lib"},
186{ERR_R_RSA_LIB ,"RSA lib"},
187{ERR_R_DH_LIB ,"DH lib"},
188{ERR_R_EVP_LIB ,"EVP lib"},
189{ERR_R_BUF_LIB ,"BUF lib"},
190{ERR_R_BIO_LIB ,"BIO lib"},
191{ERR_R_OBJ_LIB ,"OBJ lib"},
192{ERR_R_PEM_LIB ,"PEM lib"},
193{ERR_R_X509_LIB ,"X509 lib"},
194{ERR_R_METH_LIB ,"METH lib"},
195{ERR_R_ASN1_LIB ,"ASN1 lib"},
196{ERR_R_CONF_LIB ,"CONF lib"},
197{ERR_R_SSL_LIB ,"SSL lib"},
198{ERR_R_PROXY_LIB ,"PROXY lib"},
199{ERR_R_BIO_LIB ,"BIO lib"},
200{ERR_R_PKCS7_LIB ,"PKCS7 lib"},
201{ERR_R_PKCS12_LIB ,"PKCS12 lib"},
202{ERR_R_MALLOC_FAILURE ,"Malloc failure"},
203{ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED ,"called a function you should not call"},
204{ERR_R_PASSED_NULL_PARAMETER ,"passed a null parameter"},
205{ERR_R_NESTED_ASN1_ERROR ,"nested asn1 error"},
206{ERR_R_BAD_ASN1_OBJECT_HEADER ,"bad asn1 object header"},
207{ERR_R_BAD_GET_ASN1_OBJECT_CALL ,"bad get asn1 object call"},
208{ERR_R_EXPECTING_AN_ASN1_SEQUENCE ,"expecting an asn1 sequence"},
209{ERR_R_ASN1_LENGTH_MISMATCH ,"asn1 length mismatch"},
210{ERR_R_MISSING_ASN1_EOS ,"missing asn1 eos"},
211{ERR_R_DSO_LIB ,"DSO lib"},
212{ERR_R_ENGINE_LIB ,"ENGINE lib"},
213
214{0,NULL},
215 };
216
217
218#define NUM_SYS_STR_REASONS 127
219#define LEN_SYS_STR_REASON 32
220
221static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];
222/* SYS_str_reasons is filled with copies of strerror() results at
223 * initialization.
224 * 'errno' values up to 127 should cover all usual errors,
225 * others will be displayed numerically by ERR_error_string.
226 * It is crucial that we have something for each reason code
227 * that occurs in ERR_str_reasons, or bogus reason strings
228 * will be returned for SYSerr(), which always gets an errno
229 * value and never one of those 'standard' reason codes. */
230
231static void build_SYS_str_reasons()
232 {
233 /* OPENSSL_malloc cannot be used here, use static storage instead */
234 static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON];
235 int i;
236
237 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
238
239 for (i = 1; i <= NUM_SYS_STR_REASONS; i++)
240 {
241 ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
242
243 str->error = (unsigned long)i;
244 if (str->string == NULL)
245 {
246 char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]);
247 char *src = strerror(i);
248 if (src != NULL)
249 {
250 strncpy(*dest, src, sizeof *dest);
251 (*dest)[sizeof *dest - 1] = '\0';
252 str->string = *dest;
253 }
254 }
255 if (str->string == NULL)
256 str->string = "unknown";
257 }
258
259 /* Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL},
260 * as required by ERR_load_strings. */
261
262 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
263 }
264#endif
265
266#define err_clear_data(p,i) \
267 if (((p)->err_data[i] != NULL) && \
268 (p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
269 { \
270 OPENSSL_free((p)->err_data[i]); \
271 (p)->err_data[i]=NULL; \
272 } \
273 (p)->err_data_flags[i]=0;
274
275static void ERR_STATE_free(ERR_STATE *s)
276 {
277 int i;
278
279 if(s == NULL)
280 return;
281
282 for (i=0; i<ERR_NUM_ERRORS; i++)
283 {
284 err_clear_data(s,i);
285 }
286 OPENSSL_free(s);
287 }
288
289void ERR_load_ERR_strings(void)
290 {
291 static int init=1;
292
293 if (init)
294 {
295 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
296 if (init == 0)
297 {
298 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
299 return;
300 }
301 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
302
303#ifndef NO_ERR
304 ERR_load_strings(0,ERR_str_libraries);
305 ERR_load_strings(0,ERR_str_reasons);
306 ERR_load_strings(ERR_LIB_SYS,ERR_str_functs);
307 build_SYS_str_reasons();
308 ERR_load_strings(ERR_LIB_SYS,SYS_str_reasons);
309#endif
310 init=0;
311 }
312 }
313
314void ERR_load_strings(int lib, ERR_STRING_DATA *str)
315 {
316 if (error_hash == NULL)
317 {
318 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
319 error_hash=lh_new(err_hash,err_cmp);
320 if (error_hash == NULL)
321 {
322 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
323 return;
324 }
325 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
326
327 ERR_load_ERR_strings();
328 }
329
330 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
331 while (str->error)
332 {
333 str->error|=ERR_PACK(lib,0,0);
334 lh_insert(error_hash,str);
335 str++;
336 }
337 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
338 }
339
340void ERR_free_strings(void)
341 {
342 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
343
344 if (error_hash != NULL)
345 {
346 lh_free(error_hash);
347 error_hash=NULL;
348 }
349
350 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
351 }
352
353/********************************************************/
354
355void ERR_put_error(int lib, int func, int reason, const char *file,
356 int line)
357 {
358 ERR_STATE *es;
359
360#ifdef _OSD_POSIX
361 /* In the BS2000-OSD POSIX subsystem, the compiler generates
362 * path names in the form "*POSIX(/etc/passwd)".
363 * This dirty hack strips them to something sensible.
364 * @@@ We shouldn't modify a const string, though.
365 */
366 if (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {
367 char *end;
368
369 /* Skip the "*POSIX(" prefix */
370 file += sizeof("*POSIX(")-1;
371 end = &file[strlen(file)-1];
372 if (*end == ')')
373 *end = '\0';
374 /* Optional: use the basename of the path only. */
375 if ((end = strrchr(file, '/')) != NULL)
376 file = &end[1];
377 }
378#endif
379 es=ERR_get_state();
380
381 es->top=(es->top+1)%ERR_NUM_ERRORS;
382 if (es->top == es->bottom)
383 es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
384 es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
385 es->err_file[es->top]=file;
386 es->err_line[es->top]=line;
387 err_clear_data(es,es->top);
388 }
389
390void ERR_clear_error(void)
391 {
392 ERR_STATE *es;
393
394 es=ERR_get_state();
395
396#if 0
397 /* hmm... is this needed */
398 for (i=0; i<ERR_NUM_ERRORS; i++)
399 {
400 es->err_buffer[i]=0;
401 es->err_file[i]=NULL;
402 es->err_line[i]= -1;
403 err_clear_data(es,i);
404 }
405#endif
406 es->top=es->bottom=0;
407 }
408
409
410unsigned long ERR_get_error(void)
411 { return(get_error_values(1,NULL,NULL,NULL,NULL)); }
412
413unsigned long ERR_get_error_line(const char **file,
414 int *line)
415 { return(get_error_values(1,file,line,NULL,NULL)); }
416
417unsigned long ERR_get_error_line_data(const char **file, int *line,
418 const char **data, int *flags)
419 { return(get_error_values(1,file,line,
420 data,flags)); }
421
422unsigned long ERR_peek_error(void)
423 { return(get_error_values(0,NULL,NULL,NULL,NULL)); }
424
425unsigned long ERR_peek_error_line(const char **file,
426 int *line)
427 { return(get_error_values(0,file,line,NULL,NULL)); }
428
429unsigned long ERR_peek_error_line_data(const char **file, int *line,
430 const char **data, int *flags)
431 { return(get_error_values(0,file,line,
432 data,flags)); }
433
434static unsigned long get_error_values(int inc, const char **file, int *line,
435 const char **data, int *flags)
436 {
437 int i=0;
438 ERR_STATE *es;
439 unsigned long ret;
440
441 es=ERR_get_state();
442
443 if (es->bottom == es->top) return(0);
444 i=(es->bottom+1)%ERR_NUM_ERRORS;
445
446 ret=es->err_buffer[i];
447 if (inc)
448 {
449 es->bottom=i;
450 es->err_buffer[i]=0;
451 }
452
453 if ((file != NULL) && (line != NULL))
454 {
455 if (es->err_file[i] == NULL)
456 {
457 *file="NA";
458 if (line != NULL) *line=0;
459 }
460 else
461 {
462 *file=es->err_file[i];
463 if (line != NULL) *line=es->err_line[i];
464 }
465 }
466
467 if (data != NULL)
468 {
469 if (es->err_data[i] == NULL)
470 {
471 *data="";
472 if (flags != NULL) *flags=0;
473 }
474 else
475 {
476 *data=es->err_data[i];
477 if (flags != NULL) *flags=es->err_data_flags[i];
478 }
479 }
480 return(ret);
481 }
482
483void ERR_error_string_n(unsigned long e, char *buf, size_t len)
484 {
485 char lsbuf[64], fsbuf[64], rsbuf[64];
486 const char *ls,*fs,*rs;
487 unsigned long l,f,r;
488
489 l=ERR_GET_LIB(e);
490 f=ERR_GET_FUNC(e);
491 r=ERR_GET_REASON(e);
492
493 ls=ERR_lib_error_string(e);
494 fs=ERR_func_error_string(e);
495 rs=ERR_reason_error_string(e);
496
497 if (ls == NULL)
498 BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
499 if (fs == NULL)
500 BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
501 if (rs == NULL)
502 BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
503
504 BIO_snprintf(buf, len,"error:%08lX:%s:%s:%s", e, ls?ls:lsbuf,
505 fs?fs:fsbuf, rs?rs:rsbuf);
506 if (strlen(buf) == len-1)
507 {
508 /* output may be truncated; make sure we always have 5
509 * colon-separated fields, i.e. 4 colons ... */
510#define NUM_COLONS 4
511 if (len > NUM_COLONS) /* ... if possible */
512 {
513 int i;
514 char *s = buf;
515
516 for (i = 0; i < NUM_COLONS; i++)
517 {
518 char *colon = strchr(s, ':');
519 if (colon == NULL || colon > &buf[len-1] - NUM_COLONS + i)
520 {
521 /* set colon no. i at last possible position
522 * (buf[len-1] is the terminating 0)*/
523 colon = &buf[len-1] - NUM_COLONS + i;
524 *colon = ':';
525 }
526 s = colon + 1;
527 }
528 }
529 }
530 }
531
532/* BAD for multi-threading: uses a local buffer if ret == NULL */
533/* ERR_error_string_n should be used instead for ret != NULL
534 * as ERR_error_string cannot know how large the buffer is */
535char *ERR_error_string(unsigned long e, char *ret)
536 {
537 static char buf[256];
538
539 if (ret == NULL) ret=buf;
540 ERR_error_string_n(e, ret, 256);
541
542 return(ret);
543 }
544
545LHASH *ERR_get_string_table(void)
546 {
547 return(error_hash);
548 }
549
550/* not thread-safe */
551LHASH *ERR_get_err_state_table(void)
552 {
553 return(thread_hash);
554 }
555
556const char *ERR_lib_error_string(unsigned long e)
557 {
558 ERR_STRING_DATA d,*p=NULL;
559 unsigned long l;
560
561 l=ERR_GET_LIB(e);
562
563 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
564
565 if (error_hash != NULL)
566 {
567 d.error=ERR_PACK(l,0,0);
568 p=(ERR_STRING_DATA *)lh_retrieve(error_hash,&d);
569 }
570
571 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
572
573 return((p == NULL)?NULL:p->string);
574 }
575
576const char *ERR_func_error_string(unsigned long e)
577 {
578 ERR_STRING_DATA d,*p=NULL;
579 unsigned long l,f;
580
581 l=ERR_GET_LIB(e);
582 f=ERR_GET_FUNC(e);
583
584 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
585
586 if (error_hash != NULL)
587 {
588 d.error=ERR_PACK(l,f,0);
589 p=(ERR_STRING_DATA *)lh_retrieve(error_hash,&d);
590 }
591
592 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
593
594 return((p == NULL)?NULL:p->string);
595 }
596
597const char *ERR_reason_error_string(unsigned long e)
598 {
599 ERR_STRING_DATA d,*p=NULL;
600 unsigned long l,r;
601
602 l=ERR_GET_LIB(e);
603 r=ERR_GET_REASON(e);
604
605 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
606
607 if (error_hash != NULL)
608 {
609 d.error=ERR_PACK(l,0,r);
610 p=(ERR_STRING_DATA *)lh_retrieve(error_hash,&d);
611 if (p == NULL)
612 {
613 d.error=ERR_PACK(0,0,r);
614 p=(ERR_STRING_DATA *)lh_retrieve(error_hash,&d);
615 }
616 }
617
618 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
619
620 return((p == NULL)?NULL:p->string);
621 }
622
623static unsigned long err_hash(ERR_STRING_DATA *a)
624 {
625 unsigned long ret,l;
626
627 l=a->error;
628 ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l);
629 return(ret^ret%19*13);
630 }
631
632static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b)
633 {
634 return((int)(a->error-b->error));
635 }
636
637static unsigned long pid_hash(ERR_STATE *a)
638 {
639 return(a->pid*13);
640 }
641
642static int pid_cmp(ERR_STATE *a, ERR_STATE *b)
643 {
644 return((int)((long)a->pid - (long)b->pid));
645 }
646
647void ERR_remove_state(unsigned long pid)
648 {
649 ERR_STATE *p = NULL,tmp;
650
651 if (thread_hash == NULL)
652 return;
653 if (pid == 0)
654 pid=(unsigned long)CRYPTO_thread_id();
655 tmp.pid=pid;
656 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
657 if (thread_hash)
658 {
659 p=(ERR_STATE *)lh_delete(thread_hash,&tmp);
660 if (lh_num_items(thread_hash) == 0)
661 {
662 /* make sure we don't leak memory */
663 lh_free(thread_hash);
664 thread_hash = NULL;
665 }
666 }
667 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
668
669 if (p != NULL) ERR_STATE_free(p);
670 }
671
672ERR_STATE *ERR_get_state(void)
673 {
674 static ERR_STATE fallback;
675 ERR_STATE *ret=NULL,tmp,*tmpp=NULL;
676 int thread_state_exists;
677 int i;
678 unsigned long pid;
679
680 pid=(unsigned long)CRYPTO_thread_id();
681
682 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
683 if (thread_hash != NULL)
684 {
685 tmp.pid=pid;
686 ret=(ERR_STATE *)lh_retrieve(thread_hash,&tmp);
687 }
688 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
689
690 /* ret == the error state, if NULL, make a new one */
691 if (ret == NULL)
692 {
693 ret=(ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE));
694 if (ret == NULL) return(&fallback);
695 ret->pid=pid;
696 ret->top=0;
697 ret->bottom=0;
698 for (i=0; i<ERR_NUM_ERRORS; i++)
699 {
700 ret->err_data[i]=NULL;
701 ret->err_data_flags[i]=0;
702 }
703
704 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
705
706 /* no entry yet in thread_hash for current thread -
707 * thus, it may have changed since we last looked at it */
708 if (thread_hash == NULL)
709 thread_hash = lh_new(pid_hash, pid_cmp);
710 if (thread_hash == NULL)
711 thread_state_exists = 0; /* allocation error */
712 else
713 {
714 tmpp=(ERR_STATE *)lh_insert(thread_hash,ret);
715 thread_state_exists = 1;
716 }
717
718 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
719
720 if (!thread_state_exists)
721 {
722 ERR_STATE_free(ret); /* could not insert it */
723 return(&fallback);
724 }
725
726 if (tmpp != NULL) /* old entry - should not happen */
727 {
728 ERR_STATE_free(tmpp);
729 }
730 }
731 return(ret);
732 }
733
734int ERR_get_next_error_library(void)
735 {
736 static int value=ERR_LIB_USER;
737
738 return(value++);
739 }
740
741void ERR_set_error_data(char *data, int flags)
742 {
743 ERR_STATE *es;
744 int i;
745
746 es=ERR_get_state();
747
748 i=es->top;
749 if (i == 0)
750 i=ERR_NUM_ERRORS-1;
751
752 es->err_data[i]=data;
753 es->err_data_flags[es->top]=flags;
754 }
755
756void ERR_add_error_data(int num, ...)
757 {
758 va_list args;
759 int i,n,s;
760 char *str,*p,*a;
761
762 s=64;
763 str=OPENSSL_malloc(s+1);
764 if (str == NULL) return;
765 str[0]='\0';
766
767 va_start(args, num);
768 n=0;
769 for (i=0; i<num; i++)
770 {
771 a=va_arg(args, char*);
772 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
773 if (a != NULL)
774 {
775 n+=strlen(a);
776 if (n > s)
777 {
778 s=n+20;
779 p=OPENSSL_realloc(str,s+1);
780 if (p == NULL)
781 {
782 OPENSSL_free(str);
783 return;
784 }
785 else
786 str=p;
787 }
788 strcat(str,a);
789 }
790 }
791 ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING);
792
793 va_end(args);
794 }
795
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-15 02:34:20 +0000