2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
58 /* ====================================================================
59 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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 * ====================================================================
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).
115 #include "internal/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>
122 DECLARE_LHASH_OF(ERR_STRING_DATA);
123 DECLARE_LHASH_OF(ERR_STATE);
125 static void err_load_strings(int lib, ERR_STRING_DATA *str);
127 static void ERR_STATE_free(ERR_STATE *s);
128 #ifndef OPENSSL_NO_ERR
129 static ERR_STRING_DATA ERR_str_libraries[] = {
130 {ERR_PACK(ERR_LIB_NONE, 0, 0), "unknown library"},
131 {ERR_PACK(ERR_LIB_SYS, 0, 0), "system library"},
132 {ERR_PACK(ERR_LIB_BN, 0, 0), "bignum routines"},
133 {ERR_PACK(ERR_LIB_RSA, 0, 0), "rsa routines"},
134 {ERR_PACK(ERR_LIB_DH, 0, 0), "Diffie-Hellman routines"},
135 {ERR_PACK(ERR_LIB_EVP, 0, 0), "digital envelope routines"},
136 {ERR_PACK(ERR_LIB_BUF, 0, 0), "memory buffer routines"},
137 {ERR_PACK(ERR_LIB_OBJ, 0, 0), "object identifier routines"},
138 {ERR_PACK(ERR_LIB_PEM, 0, 0), "PEM routines"},
139 {ERR_PACK(ERR_LIB_DSA, 0, 0), "dsa routines"},
140 {ERR_PACK(ERR_LIB_X509, 0, 0), "x509 certificate routines"},
141 {ERR_PACK(ERR_LIB_ASN1, 0, 0), "asn1 encoding routines"},
142 {ERR_PACK(ERR_LIB_CONF, 0, 0), "configuration file routines"},
143 {ERR_PACK(ERR_LIB_CRYPTO, 0, 0), "common libcrypto routines"},
144 {ERR_PACK(ERR_LIB_EC, 0, 0), "elliptic curve routines"},
145 {ERR_PACK(ERR_LIB_ECDSA, 0, 0), "ECDSA routines"},
146 {ERR_PACK(ERR_LIB_ECDH, 0, 0), "ECDH routines"},
147 {ERR_PACK(ERR_LIB_SSL, 0, 0), "SSL routines"},
148 {ERR_PACK(ERR_LIB_BIO, 0, 0), "BIO routines"},
149 {ERR_PACK(ERR_LIB_PKCS7, 0, 0), "PKCS7 routines"},
150 {ERR_PACK(ERR_LIB_X509V3, 0, 0), "X509 V3 routines"},
151 {ERR_PACK(ERR_LIB_PKCS12, 0, 0), "PKCS12 routines"},
152 {ERR_PACK(ERR_LIB_RAND, 0, 0), "random number generator"},
153 {ERR_PACK(ERR_LIB_DSO, 0, 0), "DSO support routines"},
154 {ERR_PACK(ERR_LIB_TS, 0, 0), "time stamp routines"},
155 {ERR_PACK(ERR_LIB_ENGINE, 0, 0), "engine routines"},
156 {ERR_PACK(ERR_LIB_OCSP, 0, 0), "OCSP routines"},
157 {ERR_PACK(ERR_LIB_FIPS, 0, 0), "FIPS routines"},
158 {ERR_PACK(ERR_LIB_CMS, 0, 0), "CMS routines"},
159 {ERR_PACK(ERR_LIB_HMAC, 0, 0), "HMAC routines"},
160 {ERR_PACK(ERR_LIB_ASYNC, 0, 0), "ASYNC routines"},
164 static ERR_STRING_DATA ERR_str_functs[] = {
165 {ERR_PACK(0, SYS_F_FOPEN, 0), "fopen"},
166 {ERR_PACK(0, SYS_F_CONNECT, 0), "connect"},
167 {ERR_PACK(0, SYS_F_GETSERVBYNAME, 0), "getservbyname"},
168 {ERR_PACK(0, SYS_F_SOCKET, 0), "socket"},
169 {ERR_PACK(0, SYS_F_IOCTLSOCKET, 0), "ioctlsocket"},
170 {ERR_PACK(0, SYS_F_BIND, 0), "bind"},
171 {ERR_PACK(0, SYS_F_LISTEN, 0), "listen"},
172 {ERR_PACK(0, SYS_F_ACCEPT, 0), "accept"},
173 # ifdef OPENSSL_SYS_WINDOWS
174 {ERR_PACK(0, SYS_F_WSASTARTUP, 0), "WSAstartup"},
176 {ERR_PACK(0, SYS_F_OPENDIR, 0), "opendir"},
177 {ERR_PACK(0, SYS_F_FREAD, 0), "fread"},
181 static ERR_STRING_DATA ERR_str_reasons[] = {
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 {ERR_R_ECDSA_LIB, "ECDSA lib"},
208 {ERR_R_NESTED_ASN1_ERROR, "nested asn1 error"},
209 {ERR_R_BAD_ASN1_OBJECT_HEADER, "bad asn1 object header"},
210 {ERR_R_BAD_GET_ASN1_OBJECT_CALL, "bad get asn1 object call"},
211 {ERR_R_EXPECTING_AN_ASN1_SEQUENCE, "expecting an asn1 sequence"},
212 {ERR_R_ASN1_LENGTH_MISMATCH, "asn1 length mismatch"},
213 {ERR_R_MISSING_ASN1_EOS, "missing asn1 eos"},
215 {ERR_R_FATAL, "fatal"},
216 {ERR_R_MALLOC_FAILURE, "malloc failure"},
217 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED,
218 "called a function you should not call"},
219 {ERR_R_PASSED_NULL_PARAMETER, "passed a null parameter"},
220 {ERR_R_INTERNAL_ERROR, "internal error"},
221 {ERR_R_DISABLED, "called a function that was disabled at compile-time"},
227 /* Predeclarations of the "err_defaults" functions */
228 static LHASH_OF(ERR_STRING_DATA) *get_hash(int create, int lockit);
229 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
230 static LHASH_OF(ERR_STATE) *int_thread_get(int create, int lockit);
231 static void int_thread_release(LHASH_OF(ERR_STATE) **hash);
232 static ERR_STATE *int_thread_get_item(const ERR_STATE *);
233 static ERR_STATE *int_thread_set_item(ERR_STATE *);
234 static void int_thread_del_item(const ERR_STATE *);
239 static LHASH_OF(ERR_STRING_DATA) *int_error_hash = NULL;
240 static LHASH_OF(ERR_STATE) *int_thread_hash = NULL;
241 static int int_thread_hash_references = 0;
242 static int int_err_library_number = ERR_LIB_USER;
245 * These are the callbacks provided to "lh_new()" when creating the LHASH
246 * tables internal to the "err_defaults" implementation.
249 static unsigned long get_error_values(int inc, int top, const char **file,
250 int *line, const char **data,
253 static unsigned long err_string_data_hash(const ERR_STRING_DATA *a)
255 unsigned long ret, l;
258 ret = l ^ ERR_GET_LIB(l) ^ ERR_GET_FUNC(l);
259 return (ret ^ ret % 19 * 13);
262 static IMPLEMENT_LHASH_HASH_FN(err_string_data, ERR_STRING_DATA)
264 static int err_string_data_cmp(const ERR_STRING_DATA *a,
265 const ERR_STRING_DATA *b)
267 return (int)(a->error - b->error);
270 static IMPLEMENT_LHASH_COMP_FN(err_string_data, ERR_STRING_DATA)
272 static LHASH_OF(ERR_STRING_DATA) *get_hash(int create, int lockit)
274 LHASH_OF(ERR_STRING_DATA) *ret = NULL;
277 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
278 if (!int_error_hash && create) {
279 CRYPTO_push_info("get_hash (err.c)");
280 int_error_hash = lh_ERR_STRING_DATA_new();
283 if (int_error_hash != NULL)
284 ret = int_error_hash;
286 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
291 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)
293 ERR_STRING_DATA *p = NULL;
294 LHASH_OF(ERR_STRING_DATA) *hash;
296 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
297 hash = get_hash(0, 0);
299 p = lh_ERR_STRING_DATA_retrieve(hash, d);
300 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
305 static unsigned long err_state_hash(const ERR_STATE *a)
307 return CRYPTO_THREADID_hash(&a->tid) * 13;
310 static IMPLEMENT_LHASH_HASH_FN(err_state, ERR_STATE)
312 static int err_state_cmp(const ERR_STATE *a, const ERR_STATE *b)
314 return CRYPTO_THREADID_cmp(&a->tid, &b->tid);
317 static IMPLEMENT_LHASH_COMP_FN(err_state, ERR_STATE)
319 static LHASH_OF(ERR_STATE) *int_thread_get(int create, int lockit)
321 LHASH_OF(ERR_STATE) *ret = NULL;
324 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
325 if (!int_thread_hash && create) {
326 CRYPTO_push_info("int_thread_get (err.c)");
327 int_thread_hash = lh_ERR_STATE_new();
330 if (int_thread_hash != NULL) {
331 int_thread_hash_references++;
332 ret = int_thread_hash;
335 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
339 static void int_thread_release(LHASH_OF(ERR_STATE) **hash)
343 if (hash == NULL || *hash == NULL)
346 i = CRYPTO_add(&int_thread_hash_references, -1, CRYPTO_LOCK_ERR);
349 fprintf(stderr, "%4d:%s\n", int_thread_hash_references, "ERR");
355 fprintf(stderr, "int_thread_release, bad reference count\n");
362 static ERR_STATE *int_thread_get_item(const ERR_STATE *d)
365 LHASH_OF(ERR_STATE) *hash;
367 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
368 hash = int_thread_get(0, 0);
370 p = lh_ERR_STATE_retrieve(hash, d);
371 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
373 int_thread_release(&hash);
377 static ERR_STATE *int_thread_set_item(ERR_STATE *d)
380 LHASH_OF(ERR_STATE) *hash;
382 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
383 hash = int_thread_get(1, 0);
385 p = lh_ERR_STATE_insert(hash, d);
386 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
388 int_thread_release(&hash);
392 static void int_thread_del_item(const ERR_STATE *d)
395 LHASH_OF(ERR_STATE) *hash;
397 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
398 hash = int_thread_get(0, 0);
400 p = lh_ERR_STATE_delete(hash, d);
401 /* If there are no other references, and we just removed the
402 * last item, delete the int_thread_hash */
403 if (int_thread_hash_references == 1
405 && lh_ERR_STATE_num_items(int_thread_hash) == 0) {
406 lh_ERR_STATE_free(int_thread_hash);
407 int_thread_hash = NULL;
410 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
412 int_thread_release(&hash);
416 #ifndef OPENSSL_NO_ERR
417 # define NUM_SYS_STR_REASONS 127
418 # define LEN_SYS_STR_REASON 32
420 static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];
422 * SYS_str_reasons is filled with copies of strerror() results at
423 * initialization. 'errno' values up to 127 should cover all usual errors,
424 * others will be displayed numerically by ERR_error_string. It is crucial
425 * that we have something for each reason code that occurs in
426 * ERR_str_reasons, or bogus reason strings will be returned for SYSerr(),
427 * which always gets an errno value and never one of those 'standard' reason
431 static void build_SYS_str_reasons(void)
433 /* OPENSSL_malloc cannot be used here, use static storage instead */
434 static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON];
438 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
440 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
444 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
445 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
447 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
451 for (i = 1; i <= NUM_SYS_STR_REASONS; i++) {
452 ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
454 str->error = (unsigned long)i;
455 if (str->string == NULL) {
456 char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]);
457 char *src = strerror(i);
459 strncpy(*dest, src, sizeof(*dest));
460 (*dest)[sizeof(*dest) - 1] = '\0';
464 if (str->string == NULL)
465 str->string = "unknown";
469 * Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL}, as
470 * required by ERR_load_strings.
475 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
479 #define err_clear_data(p,i) \
481 if ((p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
483 OPENSSL_free((p)->err_data[i]); \
484 (p)->err_data[i]=NULL; \
486 (p)->err_data_flags[i]=0; \
489 #define err_clear(p,i) \
491 (p)->err_flags[i]=0; \
492 (p)->err_buffer[i]=0; \
493 err_clear_data(p,i); \
494 (p)->err_file[i]=NULL; \
495 (p)->err_line[i]= -1; \
498 static void ERR_STATE_free(ERR_STATE *s)
505 for (i = 0; i < ERR_NUM_ERRORS; i++) {
506 err_clear_data(s, i);
511 void ERR_load_ERR_strings(void)
513 #ifndef OPENSSL_NO_ERR
514 err_load_strings(0, ERR_str_libraries);
515 err_load_strings(0, ERR_str_reasons);
516 err_load_strings(ERR_LIB_SYS, ERR_str_functs);
517 build_SYS_str_reasons();
518 err_load_strings(ERR_LIB_SYS, SYS_str_reasons);
522 static void err_load_strings(int lib, ERR_STRING_DATA *str)
524 LHASH_OF(ERR_STRING_DATA) *hash;
526 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
527 hash = get_hash(1, 0);
529 for (; str->error; str++) {
531 str->error |= ERR_PACK(lib, 0, 0);
532 (void)lh_ERR_STRING_DATA_insert(hash, str);
535 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
538 void ERR_load_strings(int lib, ERR_STRING_DATA *str)
540 ERR_load_ERR_strings();
541 err_load_strings(lib, str);
544 void ERR_unload_strings(int lib, ERR_STRING_DATA *str)
546 LHASH_OF(ERR_STRING_DATA) *hash;
548 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
549 hash = get_hash(0, 0);
551 for (; str->error; str++) {
553 str->error |= ERR_PACK(lib, 0, 0);
554 (void)lh_ERR_STRING_DATA_delete(hash, str);
557 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
560 void ERR_free_strings(void)
562 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
563 lh_ERR_STRING_DATA_free(int_error_hash);
564 int_error_hash = NULL;
565 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
568 /********************************************************/
570 void ERR_put_error(int lib, int func, int reason, const char *file, int line)
576 * In the BS2000-OSD POSIX subsystem, the compiler generates path names
577 * in the form "*POSIX(/etc/passwd)". This dirty hack strips them to
578 * something sensible. @@@ We shouldn't modify a const string, though.
580 if (strncmp(file, "*POSIX(", sizeof("*POSIX(") - 1) == 0) {
583 /* Skip the "*POSIX(" prefix */
584 file += sizeof("*POSIX(") - 1;
585 end = &file[strlen(file) - 1];
588 /* Optional: use the basename of the path only. */
589 if ((end = strrchr(file, '/')) != NULL)
593 es = ERR_get_state();
595 es->top = (es->top + 1) % ERR_NUM_ERRORS;
596 if (es->top == es->bottom)
597 es->bottom = (es->bottom + 1) % ERR_NUM_ERRORS;
598 es->err_flags[es->top] = 0;
599 es->err_buffer[es->top] = ERR_PACK(lib, func, reason);
600 es->err_file[es->top] = file;
601 es->err_line[es->top] = line;
602 err_clear_data(es, es->top);
605 void ERR_clear_error(void)
610 es = ERR_get_state();
612 for (i = 0; i < ERR_NUM_ERRORS; i++) {
615 es->top = es->bottom = 0;
618 unsigned long ERR_get_error(void)
620 return (get_error_values(1, 0, NULL, NULL, NULL, NULL));
623 unsigned long ERR_get_error_line(const char **file, int *line)
625 return (get_error_values(1, 0, file, line, NULL, NULL));
628 unsigned long ERR_get_error_line_data(const char **file, int *line,
629 const char **data, int *flags)
631 return (get_error_values(1, 0, file, line, data, flags));
634 unsigned long ERR_peek_error(void)
636 return (get_error_values(0, 0, NULL, NULL, NULL, NULL));
639 unsigned long ERR_peek_error_line(const char **file, int *line)
641 return (get_error_values(0, 0, file, line, NULL, NULL));
644 unsigned long ERR_peek_error_line_data(const char **file, int *line,
645 const char **data, int *flags)
647 return (get_error_values(0, 0, file, line, data, flags));
650 unsigned long ERR_peek_last_error(void)
652 return (get_error_values(0, 1, NULL, NULL, NULL, NULL));
655 unsigned long ERR_peek_last_error_line(const char **file, int *line)
657 return (get_error_values(0, 1, file, line, NULL, NULL));
660 unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
661 const char **data, int *flags)
663 return (get_error_values(0, 1, file, line, data, flags));
666 static unsigned long get_error_values(int inc, int top, const char **file,
667 int *line, const char **data,
674 es = ERR_get_state();
686 return ERR_R_INTERNAL_ERROR;
689 if (es->bottom == es->top)
692 i = es->top; /* last error */
694 i = (es->bottom + 1) % ERR_NUM_ERRORS; /* first error */
696 ret = es->err_buffer[i];
699 es->err_buffer[i] = 0;
702 if ((file != NULL) && (line != NULL)) {
703 if (es->err_file[i] == NULL) {
708 *file = es->err_file[i];
710 *line = es->err_line[i];
716 err_clear_data(es, i);
719 if (es->err_data[i] == NULL) {
724 *data = es->err_data[i];
726 *flags = es->err_data_flags[i];
732 void ERR_error_string_n(unsigned long e, char *buf, size_t len)
734 char lsbuf[64], fsbuf[64], rsbuf[64];
735 const char *ls, *fs, *rs;
736 unsigned long l, f, r;
740 r = ERR_GET_REASON(e);
742 ls = ERR_lib_error_string(e);
743 fs = ERR_func_error_string(e);
744 rs = ERR_reason_error_string(e);
747 BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
749 BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
751 BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
753 BIO_snprintf(buf, len, "error:%08lX:%s:%s:%s", e, ls ? ls : lsbuf,
754 fs ? fs : fsbuf, rs ? rs : rsbuf);
755 if (strlen(buf) == len - 1) {
757 * output may be truncated; make sure we always have 5
758 * colon-separated fields, i.e. 4 colons ...
761 if (len > NUM_COLONS) { /* ... if possible */
765 for (i = 0; i < NUM_COLONS; i++) {
766 char *colon = strchr(s, ':');
767 if (colon == NULL || colon > &buf[len - 1] - NUM_COLONS + i) {
769 * set colon no. i at last possible position (buf[len-1]
770 * is the terminating 0)
772 colon = &buf[len - 1] - NUM_COLONS + i;
781 /* BAD for multi-threading: uses a local buffer if ret == NULL */
783 * ERR_error_string_n should be used instead for ret != NULL as
784 * ERR_error_string cannot know how large the buffer is
786 char *ERR_error_string(unsigned long e, char *ret)
788 static char buf[256];
792 ERR_error_string_n(e, ret, 256);
797 LHASH_OF(ERR_STRING_DATA) *ERR_get_string_table(void)
799 return get_hash(0, 1);
802 LHASH_OF(ERR_STATE) *ERR_get_err_state_table(void)
804 return int_thread_get(0, 1);
807 void ERR_release_err_state_table(LHASH_OF(ERR_STATE) **hash)
809 int_thread_release(hash);
812 const char *ERR_lib_error_string(unsigned long e)
814 ERR_STRING_DATA d, *p;
818 d.error = ERR_PACK(l, 0, 0);
819 p = int_err_get_item(&d);
820 return ((p == NULL) ? NULL : p->string);
823 const char *ERR_func_error_string(unsigned long e)
825 ERR_STRING_DATA d, *p;
830 d.error = ERR_PACK(l, f, 0);
831 p = int_err_get_item(&d);
832 return ((p == NULL) ? NULL : p->string);
835 const char *ERR_reason_error_string(unsigned long e)
837 ERR_STRING_DATA d, *p = NULL;
841 r = ERR_GET_REASON(e);
842 d.error = ERR_PACK(l, 0, r);
843 p = int_err_get_item(&d);
845 d.error = ERR_PACK(0, 0, r);
846 p = int_err_get_item(&d);
848 return ((p == NULL) ? NULL : p->string);
851 void ERR_remove_thread_state(const CRYPTO_THREADID *id)
856 CRYPTO_THREADID_cpy(&tmp.tid, id);
858 CRYPTO_THREADID_current(&tmp.tid);
860 * thread_del_item automatically destroys the LHASH if the number of
861 * items reaches zero.
863 int_thread_del_item(&tmp);
866 #ifndef OPENSSL_NO_DEPRECATED
867 void ERR_remove_state(unsigned long pid)
869 ERR_remove_thread_state(NULL);
873 ERR_STATE *ERR_get_state(void)
875 static ERR_STATE fallback;
876 ERR_STATE *ret, tmp, *tmpp = NULL;
880 CRYPTO_THREADID_current(&tid);
881 CRYPTO_THREADID_cpy(&tmp.tid, &tid);
882 ret = int_thread_get_item(&tmp);
884 /* ret == the error state, if NULL, make a new one */
886 ret = OPENSSL_malloc(sizeof(*ret));
889 CRYPTO_THREADID_cpy(&ret->tid, &tid);
892 for (i = 0; i < ERR_NUM_ERRORS; i++) {
893 ret->err_data[i] = NULL;
894 ret->err_data_flags[i] = 0;
896 tmpp = int_thread_set_item(ret);
897 /* To check if insertion failed, do a get. */
898 if (int_thread_get_item(ret) != ret) {
899 ERR_STATE_free(ret); /* could not insert it */
903 * If a race occurred in this function and we came second, tmpp is
904 * the first one that we just replaced.
906 ERR_STATE_free(tmpp);
911 int ERR_get_next_error_library(void)
915 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
916 ret = int_err_library_number++;
917 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
921 void ERR_set_error_data(char *data, int flags)
926 es = ERR_get_state();
930 i = ERR_NUM_ERRORS - 1;
932 err_clear_data(es, i);
933 es->err_data[i] = data;
934 es->err_data_flags[i] = flags;
937 void ERR_add_error_data(int num, ...)
941 ERR_add_error_vdata(num, args);
945 void ERR_add_error_vdata(int num, va_list args)
951 str = OPENSSL_malloc(s + 1);
957 for (i = 0; i < num; i++) {
958 a = va_arg(args, char *);
959 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
964 p = OPENSSL_realloc(str, s + 1);
971 BUF_strlcat(str, a, (size_t)s + 1);
974 ERR_set_error_data(str, ERR_TXT_MALLOCED | ERR_TXT_STRING);
977 int ERR_set_mark(void)
981 es = ERR_get_state();
983 if (es->bottom == es->top)
985 es->err_flags[es->top] |= ERR_FLAG_MARK;
989 int ERR_pop_to_mark(void)
993 es = ERR_get_state();
995 while (es->bottom != es->top
996 && (es->err_flags[es->top] & ERR_FLAG_MARK) == 0) {
997 err_clear(es, es->top);
1000 es->top = ERR_NUM_ERRORS - 1;
1003 if (es->bottom == es->top)
1005 es->err_flags[es->top] &= ~ERR_FLAG_MARK;