1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
57 /* ====================================================================
58 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
60 * Redistribution and use in source and binary forms, with or without
61 * modification, are permitted provided that the following conditions
64 * 1. Redistributions of source code must retain the above copyright
65 * notice, this list of conditions and the following disclaimer.
67 * 2. Redistributions in binary form must reproduce the above copyright
68 * notice, this list of conditions and the following disclaimer in
69 * the documentation and/or other materials provided with the
72 * 3. All advertising materials mentioning features or use of this
73 * software must display the following acknowledgment:
74 * "This product includes software developed by the OpenSSL Project
75 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
78 * endorse or promote products derived from this software without
79 * prior written permission. For written permission, please contact
80 * openssl-core@openssl.org.
82 * 5. Products derived from this software may not be called "OpenSSL"
83 * nor may "OpenSSL" appear in their names without prior written
84 * permission of the OpenSSL Project.
86 * 6. Redistributions of any form whatsoever must retain the following
88 * "This product includes software developed by the OpenSSL Project
89 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
92 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
93 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
94 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
95 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
96 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
97 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
98 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
99 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
100 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
101 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
102 * OF THE POSSIBILITY OF SUCH DAMAGE.
103 * ====================================================================
105 * This product includes cryptographic software written by Eric Young
106 * (eay@cryptsoft.com). This product includes software written by Tim
107 * Hudson (tjh@cryptsoft.com).
114 #include <internal/cryptlib_int.h>
115 #include <openssl/lhash.h>
116 #include <openssl/crypto.h>
117 #include <openssl/buffer.h>
118 #include <openssl/bio.h>
119 #include <openssl/err.h>
120 #include <openssl/opensslconf.h>
123 static void err_load_strings(int lib, ERR_STRING_DATA *str);
125 static void ERR_STATE_free(ERR_STATE *s);
126 #ifndef OPENSSL_NO_ERR
127 static ERR_STRING_DATA ERR_str_libraries[] = {
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_ECDSA, 0, 0), "ECDSA routines"},
144 {ERR_PACK(ERR_LIB_ECDH, 0, 0), "ECDH routines"},
145 {ERR_PACK(ERR_LIB_SSL, 0, 0), "SSL routines"},
146 {ERR_PACK(ERR_LIB_BIO, 0, 0), "BIO routines"},
147 {ERR_PACK(ERR_LIB_PKCS7, 0, 0), "PKCS7 routines"},
148 {ERR_PACK(ERR_LIB_X509V3, 0, 0), "X509 V3 routines"},
149 {ERR_PACK(ERR_LIB_PKCS12, 0, 0), "PKCS12 routines"},
150 {ERR_PACK(ERR_LIB_RAND, 0, 0), "random number generator"},
151 {ERR_PACK(ERR_LIB_DSO, 0, 0), "DSO support routines"},
152 {ERR_PACK(ERR_LIB_TS, 0, 0), "time stamp routines"},
153 {ERR_PACK(ERR_LIB_ENGINE, 0, 0), "engine routines"},
154 {ERR_PACK(ERR_LIB_OCSP, 0, 0), "OCSP routines"},
155 {ERR_PACK(ERR_LIB_FIPS, 0, 0), "FIPS routines"},
156 {ERR_PACK(ERR_LIB_CMS, 0, 0), "CMS routines"},
157 {ERR_PACK(ERR_LIB_HMAC, 0, 0), "HMAC routines"},
158 {ERR_PACK(ERR_LIB_CT, 0, 0), "CT routines"},
159 {ERR_PACK(ERR_LIB_ASYNC, 0, 0), "ASYNC routines"},
163 static ERR_STRING_DATA ERR_str_functs[] = {
164 {ERR_PACK(0, SYS_F_FOPEN, 0), "fopen"},
165 {ERR_PACK(0, SYS_F_CONNECT, 0), "connect"},
166 {ERR_PACK(0, SYS_F_GETSERVBYNAME, 0), "getservbyname"},
167 {ERR_PACK(0, SYS_F_SOCKET, 0), "socket"},
168 {ERR_PACK(0, SYS_F_IOCTLSOCKET, 0), "ioctlsocket"},
169 {ERR_PACK(0, SYS_F_BIND, 0), "bind"},
170 {ERR_PACK(0, SYS_F_LISTEN, 0), "listen"},
171 {ERR_PACK(0, SYS_F_ACCEPT, 0), "accept"},
172 # ifdef OPENSSL_SYS_WINDOWS
173 {ERR_PACK(0, SYS_F_WSASTARTUP, 0), "WSAstartup"},
175 {ERR_PACK(0, SYS_F_OPENDIR, 0), "opendir"},
176 {ERR_PACK(0, SYS_F_FREAD, 0), "fread"},
177 {ERR_PACK(0, SYS_F_GETADDRINFO, 0), "getaddrinfo"},
178 {ERR_PACK(0, SYS_F_GETNAMEINFO, 0), "getnameinfo"},
179 {ERR_PACK(0, SYS_F_SETSOCKOPT, 0), "setsockopt"},
180 {ERR_PACK(0, SYS_F_GETSOCKOPT, 0), "getsockopt"},
181 {ERR_PACK(0, SYS_F_GETSOCKNAME, 0), "getsockname"},
182 {ERR_PACK(0, SYS_F_GETHOSTBYNAME, 0), "gethostbyname"},
186 static ERR_STRING_DATA ERR_str_reasons[] = {
187 {ERR_R_SYS_LIB, "system lib"},
188 {ERR_R_BN_LIB, "BN lib"},
189 {ERR_R_RSA_LIB, "RSA lib"},
190 {ERR_R_DH_LIB, "DH lib"},
191 {ERR_R_EVP_LIB, "EVP lib"},
192 {ERR_R_BUF_LIB, "BUF lib"},
193 {ERR_R_OBJ_LIB, "OBJ lib"},
194 {ERR_R_PEM_LIB, "PEM lib"},
195 {ERR_R_DSA_LIB, "DSA lib"},
196 {ERR_R_X509_LIB, "X509 lib"},
197 {ERR_R_ASN1_LIB, "ASN1 lib"},
198 {ERR_R_CONF_LIB, "CONF lib"},
199 {ERR_R_CRYPTO_LIB, "CRYPTO lib"},
200 {ERR_R_EC_LIB, "EC lib"},
201 {ERR_R_SSL_LIB, "SSL lib"},
202 {ERR_R_BIO_LIB, "BIO lib"},
203 {ERR_R_PKCS7_LIB, "PKCS7 lib"},
204 {ERR_R_X509V3_LIB, "X509V3 lib"},
205 {ERR_R_PKCS12_LIB, "PKCS12 lib"},
206 {ERR_R_RAND_LIB, "RAND lib"},
207 {ERR_R_DSO_LIB, "DSO lib"},
208 {ERR_R_ENGINE_LIB, "ENGINE lib"},
209 {ERR_R_OCSP_LIB, "OCSP lib"},
210 {ERR_R_TS_LIB, "TS lib"},
211 {ERR_R_ECDSA_LIB, "ECDSA lib"},
213 {ERR_R_NESTED_ASN1_ERROR, "nested asn1 error"},
214 {ERR_R_BAD_ASN1_OBJECT_HEADER, "bad asn1 object header"},
215 {ERR_R_BAD_GET_ASN1_OBJECT_CALL, "bad get asn1 object call"},
216 {ERR_R_EXPECTING_AN_ASN1_SEQUENCE, "expecting an asn1 sequence"},
217 {ERR_R_ASN1_LENGTH_MISMATCH, "asn1 length mismatch"},
218 {ERR_R_MISSING_ASN1_EOS, "missing asn1 eos"},
220 {ERR_R_FATAL, "fatal"},
221 {ERR_R_MALLOC_FAILURE, "malloc failure"},
222 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED,
223 "called a function you should not call"},
224 {ERR_R_PASSED_NULL_PARAMETER, "passed a null parameter"},
225 {ERR_R_INTERNAL_ERROR, "internal error"},
226 {ERR_R_DISABLED, "called a function that was disabled at compile-time"},
227 {ERR_R_INIT_FAIL, "init fail"},
233 /* Predeclarations of the "err_defaults" functions */
234 static LHASH_OF(ERR_STRING_DATA) *get_hash(int create, int lockit);
235 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
236 static LHASH_OF(ERR_STATE) *int_thread_get(int create, int lockit);
237 static void int_thread_release(LHASH_OF(ERR_STATE) **hash);
238 static ERR_STATE *int_thread_get_item(const ERR_STATE *);
239 static ERR_STATE *int_thread_set_item(ERR_STATE *);
240 static void int_thread_del_item(const ERR_STATE *);
246 /* This is a struct so that REF_PRINT_COUNT works. */
247 static struct refcount {
250 static LHASH_OF(ERR_STRING_DATA) *int_error_hash = NULL;
251 static LHASH_OF(ERR_STATE) *int_thread_hash = NULL;
252 static int int_err_library_number = ERR_LIB_USER;
254 static unsigned long get_error_values(int inc, int top, const char **file,
255 int *line, const char **data,
258 static unsigned long err_string_data_hash(const ERR_STRING_DATA *a)
260 unsigned long ret, l;
263 ret = l ^ ERR_GET_LIB(l) ^ ERR_GET_FUNC(l);
264 return (ret ^ ret % 19 * 13);
267 static int err_string_data_cmp(const ERR_STRING_DATA *a,
268 const ERR_STRING_DATA *b)
270 return (int)(a->error - b->error);
273 static LHASH_OF(ERR_STRING_DATA) *get_hash(int create, int lockit)
275 LHASH_OF(ERR_STRING_DATA) *ret = NULL;
278 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
279 if (!int_error_hash && create) {
280 int_error_hash = lh_ERR_STRING_DATA_new(err_string_data_hash,
281 err_string_data_cmp);
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 int err_state_cmp(const ERR_STATE *a, const ERR_STATE *b)
312 return CRYPTO_THREADID_cmp(&a->tid, &b->tid);
315 static LHASH_OF(ERR_STATE) *int_thread_get(int create, int lockit)
317 LHASH_OF(ERR_STATE) *ret = NULL;
320 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
321 if (!int_thread_hash && create) {
322 int_thread_hash = lh_ERR_STATE_new(err_state_hash, err_state_cmp);
324 if (int_thread_hash != NULL) {
325 refcount.references++;
326 ret = int_thread_hash;
329 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
333 static void int_thread_release(LHASH_OF(ERR_STATE) **hash)
337 if (hash == NULL || *hash == NULL)
340 i = CRYPTO_add(&refcount.references, -1, CRYPTO_LOCK_ERR);
342 REF_PRINT_COUNT(&refcount, "ERR");
345 REF_ASSERT_ISNT(i < 0);
349 static ERR_STATE *int_thread_get_item(const ERR_STATE *d)
352 LHASH_OF(ERR_STATE) *hash;
354 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
355 hash = int_thread_get(0, 0);
357 p = lh_ERR_STATE_retrieve(hash, d);
358 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
360 int_thread_release(&hash);
364 static ERR_STATE *int_thread_set_item(ERR_STATE *d)
367 LHASH_OF(ERR_STATE) *hash;
369 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
370 hash = int_thread_get(1, 0);
372 p = lh_ERR_STATE_insert(hash, d);
373 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
375 int_thread_release(&hash);
379 static void int_thread_del_item(const ERR_STATE *d)
382 LHASH_OF(ERR_STATE) *hash;
384 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
385 hash = int_thread_get(0, 0);
387 p = lh_ERR_STATE_delete(hash, d);
388 /* If there are no other references, and we just removed the
389 * last item, delete the int_thread_hash */
390 if (refcount.references == 1
392 && lh_ERR_STATE_num_items(int_thread_hash) == 0) {
393 refcount.references = 0;
394 lh_ERR_STATE_free(int_thread_hash);
395 int_thread_hash = NULL;
399 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
401 int_thread_release(&hash);
405 #ifndef OPENSSL_NO_ERR
406 # define NUM_SYS_STR_REASONS 127
407 # define LEN_SYS_STR_REASON 32
409 static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];
411 * SYS_str_reasons is filled with copies of strerror() results at
412 * initialization. 'errno' values up to 127 should cover all usual errors,
413 * others will be displayed numerically by ERR_error_string. It is crucial
414 * that we have something for each reason code that occurs in
415 * ERR_str_reasons, or bogus reason strings will be returned for SYSerr(),
416 * which always gets an errno value and never one of those 'standard' reason
420 static void build_SYS_str_reasons(void)
422 /* OPENSSL_malloc cannot be used here, use static storage instead */
423 static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON];
427 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
429 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
433 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
434 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
436 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
440 for (i = 1; i <= NUM_SYS_STR_REASONS; i++) {
441 ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
443 str->error = (unsigned long)i;
444 if (str->string == NULL) {
445 char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]);
446 char *src = strerror(i);
448 strncpy(*dest, src, sizeof(*dest));
449 (*dest)[sizeof(*dest) - 1] = '\0';
453 if (str->string == NULL)
454 str->string = "unknown";
458 * Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL}, as
459 * required by ERR_load_strings.
464 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
468 #define err_clear_data(p,i) \
470 if ((p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
472 OPENSSL_free((p)->err_data[i]); \
473 (p)->err_data[i]=NULL; \
475 (p)->err_data_flags[i]=0; \
478 #define err_clear(p,i) \
480 (p)->err_flags[i]=0; \
481 (p)->err_buffer[i]=0; \
482 err_clear_data(p,i); \
483 (p)->err_file[i]=NULL; \
484 (p)->err_line[i]= -1; \
487 static void ERR_STATE_free(ERR_STATE *s)
494 for (i = 0; i < ERR_NUM_ERRORS; i++) {
495 err_clear_data(s, i);
500 void ERR_load_ERR_strings(void)
502 #ifndef OPENSSL_NO_ERR
503 err_load_strings(0, ERR_str_libraries);
504 err_load_strings(0, ERR_str_reasons);
505 err_load_strings(ERR_LIB_SYS, ERR_str_functs);
506 build_SYS_str_reasons();
507 err_load_strings(ERR_LIB_SYS, SYS_str_reasons);
511 static void err_load_strings(int lib, ERR_STRING_DATA *str)
513 LHASH_OF(ERR_STRING_DATA) *hash;
515 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
516 hash = get_hash(1, 0);
518 for (; str->error; str++) {
520 str->error |= ERR_PACK(lib, 0, 0);
521 (void)lh_ERR_STRING_DATA_insert(hash, str);
524 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
527 void ERR_load_strings(int lib, ERR_STRING_DATA *str)
529 ERR_load_ERR_strings();
530 err_load_strings(lib, str);
533 void ERR_unload_strings(int lib, ERR_STRING_DATA *str)
535 LHASH_OF(ERR_STRING_DATA) *hash;
537 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
538 hash = get_hash(0, 0);
540 for (; str->error; str++) {
542 str->error |= ERR_PACK(lib, 0, 0);
543 (void)lh_ERR_STRING_DATA_delete(hash, str);
546 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
549 void ERR_free_strings(void)
551 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
552 lh_ERR_STRING_DATA_free(int_error_hash);
553 int_error_hash = NULL;
554 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
557 /********************************************************/
559 void ERR_put_error(int lib, int func, int reason, const char *file, int line)
565 * In the BS2000-OSD POSIX subsystem, the compiler generates path names
566 * in the form "*POSIX(/etc/passwd)". This dirty hack strips them to
567 * something sensible. @@@ We shouldn't modify a const string, though.
569 if (strncmp(file, "*POSIX(", sizeof("*POSIX(") - 1) == 0) {
572 /* Skip the "*POSIX(" prefix */
573 file += sizeof("*POSIX(") - 1;
574 end = &file[strlen(file) - 1];
577 /* Optional: use the basename of the path only. */
578 if ((end = strrchr(file, '/')) != NULL)
582 es = ERR_get_state();
584 es->top = (es->top + 1) % ERR_NUM_ERRORS;
585 if (es->top == es->bottom)
586 es->bottom = (es->bottom + 1) % ERR_NUM_ERRORS;
587 es->err_flags[es->top] = 0;
588 es->err_buffer[es->top] = ERR_PACK(lib, func, reason);
589 es->err_file[es->top] = file;
590 es->err_line[es->top] = line;
591 err_clear_data(es, es->top);
594 void ERR_clear_error(void)
599 es = ERR_get_state();
601 for (i = 0; i < ERR_NUM_ERRORS; i++) {
604 es->top = es->bottom = 0;
607 unsigned long ERR_get_error(void)
609 return (get_error_values(1, 0, NULL, NULL, NULL, NULL));
612 unsigned long ERR_get_error_line(const char **file, int *line)
614 return (get_error_values(1, 0, file, line, NULL, NULL));
617 unsigned long ERR_get_error_line_data(const char **file, int *line,
618 const char **data, int *flags)
620 return (get_error_values(1, 0, file, line, data, flags));
623 unsigned long ERR_peek_error(void)
625 return (get_error_values(0, 0, NULL, NULL, NULL, NULL));
628 unsigned long ERR_peek_error_line(const char **file, int *line)
630 return (get_error_values(0, 0, file, line, NULL, NULL));
633 unsigned long ERR_peek_error_line_data(const char **file, int *line,
634 const char **data, int *flags)
636 return (get_error_values(0, 0, file, line, data, flags));
639 unsigned long ERR_peek_last_error(void)
641 return (get_error_values(0, 1, NULL, NULL, NULL, NULL));
644 unsigned long ERR_peek_last_error_line(const char **file, int *line)
646 return (get_error_values(0, 1, file, line, NULL, NULL));
649 unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
650 const char **data, int *flags)
652 return (get_error_values(0, 1, file, line, data, flags));
655 static unsigned long get_error_values(int inc, int top, const char **file,
656 int *line, const char **data,
663 es = ERR_get_state();
675 return ERR_R_INTERNAL_ERROR;
678 if (es->bottom == es->top)
681 i = es->top; /* last error */
683 i = (es->bottom + 1) % ERR_NUM_ERRORS; /* first error */
685 ret = es->err_buffer[i];
688 es->err_buffer[i] = 0;
691 if ((file != NULL) && (line != NULL)) {
692 if (es->err_file[i] == NULL) {
697 *file = es->err_file[i];
699 *line = es->err_line[i];
705 err_clear_data(es, i);
708 if (es->err_data[i] == NULL) {
713 *data = es->err_data[i];
715 *flags = es->err_data_flags[i];
721 void ERR_error_string_n(unsigned long e, char *buf, size_t len)
723 char lsbuf[64], fsbuf[64], rsbuf[64];
724 const char *ls, *fs, *rs;
725 unsigned long l, f, r;
729 r = ERR_GET_REASON(e);
731 ls = ERR_lib_error_string(e);
732 fs = ERR_func_error_string(e);
733 rs = ERR_reason_error_string(e);
736 BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
738 BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
740 BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
742 BIO_snprintf(buf, len, "error:%08lX:%s:%s:%s", e, ls ? ls : lsbuf,
743 fs ? fs : fsbuf, rs ? rs : rsbuf);
744 if (strlen(buf) == len - 1) {
746 * output may be truncated; make sure we always have 5
747 * colon-separated fields, i.e. 4 colons ...
750 if (len > NUM_COLONS) { /* ... if possible */
754 for (i = 0; i < NUM_COLONS; i++) {
755 char *colon = strchr(s, ':');
756 if (colon == NULL || colon > &buf[len - 1] - NUM_COLONS + i) {
758 * set colon no. i at last possible position (buf[len-1]
759 * is the terminating 0)
761 colon = &buf[len - 1] - NUM_COLONS + i;
770 /* BAD for multi-threading: uses a local buffer if ret == NULL */
772 * ERR_error_string_n should be used instead for ret != NULL as
773 * ERR_error_string cannot know how large the buffer is
775 char *ERR_error_string(unsigned long e, char *ret)
777 static char buf[256];
781 ERR_error_string_n(e, ret, 256);
786 LHASH_OF(ERR_STRING_DATA) *ERR_get_string_table(void)
788 return get_hash(0, 1);
791 LHASH_OF(ERR_STATE) *ERR_get_err_state_table(void)
793 return int_thread_get(0, 1);
796 void ERR_release_err_state_table(LHASH_OF(ERR_STATE) **hash)
798 int_thread_release(hash);
801 const char *ERR_lib_error_string(unsigned long e)
803 ERR_STRING_DATA d, *p;
807 d.error = ERR_PACK(l, 0, 0);
808 p = int_err_get_item(&d);
809 return ((p == NULL) ? NULL : p->string);
812 const char *ERR_func_error_string(unsigned long e)
814 ERR_STRING_DATA d, *p;
819 d.error = ERR_PACK(l, f, 0);
820 p = int_err_get_item(&d);
821 return ((p == NULL) ? NULL : p->string);
824 const char *ERR_reason_error_string(unsigned long e)
826 ERR_STRING_DATA d, *p = NULL;
830 r = ERR_GET_REASON(e);
831 d.error = ERR_PACK(l, 0, r);
832 p = int_err_get_item(&d);
834 d.error = ERR_PACK(0, 0, r);
835 p = int_err_get_item(&d);
837 return ((p == NULL) ? NULL : p->string);
840 void ERR_remove_thread_state(const CRYPTO_THREADID *id)
845 CRYPTO_THREADID_cpy(&tmp.tid, id);
847 CRYPTO_THREADID_current(&tmp.tid);
849 * thread_del_item automatically destroys the LHASH if the number of
850 * items reaches zero.
852 int_thread_del_item(&tmp);
855 #if OPENSSL_API_COMPAT < 0x10000000L
856 void ERR_remove_state(unsigned long pid)
858 ERR_remove_thread_state(NULL);
862 ERR_STATE *ERR_get_state(void)
864 static ERR_STATE fallback;
865 ERR_STATE *ret, tmp, *tmpp = NULL;
869 CRYPTO_THREADID_current(&tid);
870 CRYPTO_THREADID_cpy(&tmp.tid, &tid);
871 ret = int_thread_get_item(&tmp);
873 /* ret == the error state, if NULL, make a new one */
875 ret = OPENSSL_malloc(sizeof(*ret));
878 CRYPTO_THREADID_cpy(&ret->tid, &tid);
881 for (i = 0; i < ERR_NUM_ERRORS; i++) {
882 ret->err_data[i] = NULL;
883 ret->err_data_flags[i] = 0;
885 tmpp = int_thread_set_item(ret);
886 /* To check if insertion failed, do a get. */
887 if (int_thread_get_item(ret) != ret) {
888 ERR_STATE_free(ret); /* could not insert it */
892 * If a race occurred in this function and we came second, tmpp is
893 * the first one that we just replaced.
895 ERR_STATE_free(tmpp);
897 /* Ignore failures from these */
898 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
899 ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE);
904 int ERR_get_next_error_library(void)
908 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
909 ret = int_err_library_number++;
910 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
914 void ERR_set_error_data(char *data, int flags)
919 es = ERR_get_state();
923 i = ERR_NUM_ERRORS - 1;
925 err_clear_data(es, i);
926 es->err_data[i] = data;
927 es->err_data_flags[i] = flags;
930 void ERR_add_error_data(int num, ...)
934 ERR_add_error_vdata(num, args);
938 void ERR_add_error_vdata(int num, va_list args)
944 str = OPENSSL_malloc(s + 1);
950 for (i = 0; i < num; i++) {
951 a = va_arg(args, char *);
952 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
957 p = OPENSSL_realloc(str, s + 1);
964 OPENSSL_strlcat(str, a, (size_t)s + 1);
967 ERR_set_error_data(str, ERR_TXT_MALLOCED | ERR_TXT_STRING);
970 int ERR_set_mark(void)
974 es = ERR_get_state();
976 if (es->bottom == es->top)
978 es->err_flags[es->top] |= ERR_FLAG_MARK;
982 int ERR_pop_to_mark(void)
986 es = ERR_get_state();
988 while (es->bottom != es->top
989 && (es->err_flags[es->top] & ERR_FLAG_MARK) == 0) {
990 err_clear(es, es->top);
993 es->top = ERR_NUM_ERRORS - 1;
996 if (es->bottom == es->top)
998 es->err_flags[es->top] &= ~ERR_FLAG_MARK;