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_ASYNC, 0, 0), "ASYNC routines"},
162 static ERR_STRING_DATA ERR_str_functs[] = {
163 {ERR_PACK(0, SYS_F_FOPEN, 0), "fopen"},
164 {ERR_PACK(0, SYS_F_CONNECT, 0), "connect"},
165 {ERR_PACK(0, SYS_F_GETSERVBYNAME, 0), "getservbyname"},
166 {ERR_PACK(0, SYS_F_SOCKET, 0), "socket"},
167 {ERR_PACK(0, SYS_F_IOCTLSOCKET, 0), "ioctlsocket"},
168 {ERR_PACK(0, SYS_F_BIND, 0), "bind"},
169 {ERR_PACK(0, SYS_F_LISTEN, 0), "listen"},
170 {ERR_PACK(0, SYS_F_ACCEPT, 0), "accept"},
171 # ifdef OPENSSL_SYS_WINDOWS
172 {ERR_PACK(0, SYS_F_WSASTARTUP, 0), "WSAstartup"},
174 {ERR_PACK(0, SYS_F_OPENDIR, 0), "opendir"},
175 {ERR_PACK(0, SYS_F_FREAD, 0), "fread"},
176 {ERR_PACK(0, SYS_F_GETADDRINFO, 0), "getaddrinfo"},
177 {ERR_PACK(0, SYS_F_GETNAMEINFO, 0), "getnameinfo"},
178 {ERR_PACK(0, SYS_F_SETSOCKOPT, 0), "setsockopt"},
179 {ERR_PACK(0, SYS_F_GETSOCKOPT, 0), "getsockopt"},
180 {ERR_PACK(0, SYS_F_GETSOCKNAME, 0), "getsockname"},
181 {ERR_PACK(0, SYS_F_GETHOSTBYNAME, 0), "gethostbyname"},
185 static ERR_STRING_DATA ERR_str_reasons[] = {
186 {ERR_R_SYS_LIB, "system lib"},
187 {ERR_R_BN_LIB, "BN lib"},
188 {ERR_R_RSA_LIB, "RSA lib"},
189 {ERR_R_DH_LIB, "DH lib"},
190 {ERR_R_EVP_LIB, "EVP lib"},
191 {ERR_R_BUF_LIB, "BUF lib"},
192 {ERR_R_OBJ_LIB, "OBJ lib"},
193 {ERR_R_PEM_LIB, "PEM lib"},
194 {ERR_R_DSA_LIB, "DSA lib"},
195 {ERR_R_X509_LIB, "X509 lib"},
196 {ERR_R_ASN1_LIB, "ASN1 lib"},
197 {ERR_R_CONF_LIB, "CONF lib"},
198 {ERR_R_CRYPTO_LIB, "CRYPTO lib"},
199 {ERR_R_EC_LIB, "EC lib"},
200 {ERR_R_SSL_LIB, "SSL lib"},
201 {ERR_R_BIO_LIB, "BIO lib"},
202 {ERR_R_PKCS7_LIB, "PKCS7 lib"},
203 {ERR_R_X509V3_LIB, "X509V3 lib"},
204 {ERR_R_PKCS12_LIB, "PKCS12 lib"},
205 {ERR_R_RAND_LIB, "RAND lib"},
206 {ERR_R_DSO_LIB, "DSO lib"},
207 {ERR_R_ENGINE_LIB, "ENGINE lib"},
208 {ERR_R_OCSP_LIB, "OCSP lib"},
209 {ERR_R_TS_LIB, "TS lib"},
210 {ERR_R_ECDSA_LIB, "ECDSA lib"},
212 {ERR_R_NESTED_ASN1_ERROR, "nested asn1 error"},
213 {ERR_R_BAD_ASN1_OBJECT_HEADER, "bad asn1 object header"},
214 {ERR_R_BAD_GET_ASN1_OBJECT_CALL, "bad get asn1 object call"},
215 {ERR_R_EXPECTING_AN_ASN1_SEQUENCE, "expecting an asn1 sequence"},
216 {ERR_R_ASN1_LENGTH_MISMATCH, "asn1 length mismatch"},
217 {ERR_R_MISSING_ASN1_EOS, "missing asn1 eos"},
219 {ERR_R_FATAL, "fatal"},
220 {ERR_R_MALLOC_FAILURE, "malloc failure"},
221 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED,
222 "called a function you should not call"},
223 {ERR_R_PASSED_NULL_PARAMETER, "passed a null parameter"},
224 {ERR_R_INTERNAL_ERROR, "internal error"},
225 {ERR_R_DISABLED, "called a function that was disabled at compile-time"},
226 {ERR_R_INIT_FAIL, "init fail"},
232 /* Predeclarations of the "err_defaults" functions */
233 static LHASH_OF(ERR_STRING_DATA) *get_hash(int create, int lockit);
234 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
235 static LHASH_OF(ERR_STATE) *int_thread_get(int create, int lockit);
236 static void int_thread_release(LHASH_OF(ERR_STATE) **hash);
237 static ERR_STATE *int_thread_get_item(const ERR_STATE *);
238 static ERR_STATE *int_thread_set_item(ERR_STATE *);
239 static void int_thread_del_item(const ERR_STATE *);
244 static LHASH_OF(ERR_STRING_DATA) *int_error_hash = NULL;
245 static LHASH_OF(ERR_STATE) *int_thread_hash = NULL;
246 static int int_thread_hash_references = 0;
247 static int int_err_library_number = ERR_LIB_USER;
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 int err_string_data_cmp(const ERR_STRING_DATA *a,
263 const ERR_STRING_DATA *b)
265 return (int)(a->error - b->error);
268 static LHASH_OF(ERR_STRING_DATA) *get_hash(int create, int lockit)
270 LHASH_OF(ERR_STRING_DATA) *ret = NULL;
273 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
274 if (!int_error_hash && create) {
275 int_error_hash = lh_ERR_STRING_DATA_new(err_string_data_hash,
276 err_string_data_cmp);
278 if (int_error_hash != NULL)
279 ret = int_error_hash;
281 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
286 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)
288 ERR_STRING_DATA *p = NULL;
289 LHASH_OF(ERR_STRING_DATA) *hash;
291 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
292 hash = get_hash(0, 0);
294 p = lh_ERR_STRING_DATA_retrieve(hash, d);
295 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
300 static unsigned long err_state_hash(const ERR_STATE *a)
302 return CRYPTO_THREADID_hash(&a->tid) * 13;
305 static int err_state_cmp(const ERR_STATE *a, const ERR_STATE *b)
307 return CRYPTO_THREADID_cmp(&a->tid, &b->tid);
310 static LHASH_OF(ERR_STATE) *int_thread_get(int create, int lockit)
312 LHASH_OF(ERR_STATE) *ret = NULL;
315 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
316 if (!int_thread_hash && create) {
317 int_thread_hash = lh_ERR_STATE_new(err_state_hash, err_state_cmp);
319 if (int_thread_hash != NULL) {
320 int_thread_hash_references++;
321 ret = int_thread_hash;
324 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
328 static void int_thread_release(LHASH_OF(ERR_STATE) **hash)
332 if (hash == NULL || *hash == NULL)
335 i = CRYPTO_add(&int_thread_hash_references, -1, CRYPTO_LOCK_ERR);
338 fprintf(stderr, "%4d:%s\n", int_thread_hash_references, "ERR");
344 fprintf(stderr, "int_thread_release, bad reference count\n");
351 static ERR_STATE *int_thread_get_item(const ERR_STATE *d)
354 LHASH_OF(ERR_STATE) *hash;
356 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
357 hash = int_thread_get(0, 0);
359 p = lh_ERR_STATE_retrieve(hash, d);
360 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
362 int_thread_release(&hash);
366 static ERR_STATE *int_thread_set_item(ERR_STATE *d)
369 LHASH_OF(ERR_STATE) *hash;
371 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
372 hash = int_thread_get(1, 0);
374 p = lh_ERR_STATE_insert(hash, d);
375 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
377 int_thread_release(&hash);
381 static void int_thread_del_item(const ERR_STATE *d)
384 LHASH_OF(ERR_STATE) *hash;
386 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
387 hash = int_thread_get(0, 0);
389 p = lh_ERR_STATE_delete(hash, d);
390 /* If there are no other references, and we just removed the
391 * last item, delete the int_thread_hash */
392 if (int_thread_hash_references == 1
394 && lh_ERR_STATE_num_items(int_thread_hash) == 0) {
395 int_thread_hash_references = 0;
396 lh_ERR_STATE_free(int_thread_hash);
397 int_thread_hash = NULL;
401 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
403 int_thread_release(&hash);
407 #ifndef OPENSSL_NO_ERR
408 # define NUM_SYS_STR_REASONS 127
409 # define LEN_SYS_STR_REASON 32
411 static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];
413 * SYS_str_reasons is filled with copies of strerror() results at
414 * initialization. 'errno' values up to 127 should cover all usual errors,
415 * others will be displayed numerically by ERR_error_string. It is crucial
416 * that we have something for each reason code that occurs in
417 * ERR_str_reasons, or bogus reason strings will be returned for SYSerr(),
418 * which always gets an errno value and never one of those 'standard' reason
422 static void build_SYS_str_reasons(void)
424 /* OPENSSL_malloc cannot be used here, use static storage instead */
425 static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON];
429 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
431 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
435 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
436 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
438 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
442 for (i = 1; i <= NUM_SYS_STR_REASONS; i++) {
443 ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
445 str->error = (unsigned long)i;
446 if (str->string == NULL) {
447 char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]);
448 char *src = strerror(i);
450 strncpy(*dest, src, sizeof(*dest));
451 (*dest)[sizeof(*dest) - 1] = '\0';
455 if (str->string == NULL)
456 str->string = "unknown";
460 * Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL}, as
461 * required by ERR_load_strings.
466 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
470 #define err_clear_data(p,i) \
472 if ((p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
474 OPENSSL_free((p)->err_data[i]); \
475 (p)->err_data[i]=NULL; \
477 (p)->err_data_flags[i]=0; \
480 #define err_clear(p,i) \
482 (p)->err_flags[i]=0; \
483 (p)->err_buffer[i]=0; \
484 err_clear_data(p,i); \
485 (p)->err_file[i]=NULL; \
486 (p)->err_line[i]= -1; \
489 static void ERR_STATE_free(ERR_STATE *s)
496 for (i = 0; i < ERR_NUM_ERRORS; i++) {
497 err_clear_data(s, i);
502 void ERR_load_ERR_strings(void)
504 #ifndef OPENSSL_NO_ERR
505 err_load_strings(0, ERR_str_libraries);
506 err_load_strings(0, ERR_str_reasons);
507 err_load_strings(ERR_LIB_SYS, ERR_str_functs);
508 build_SYS_str_reasons();
509 err_load_strings(ERR_LIB_SYS, SYS_str_reasons);
513 static void err_load_strings(int lib, ERR_STRING_DATA *str)
515 LHASH_OF(ERR_STRING_DATA) *hash;
517 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
518 hash = get_hash(1, 0);
520 for (; str->error; str++) {
522 str->error |= ERR_PACK(lib, 0, 0);
523 (void)lh_ERR_STRING_DATA_insert(hash, str);
526 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
529 void ERR_load_strings(int lib, ERR_STRING_DATA *str)
531 ERR_load_ERR_strings();
532 err_load_strings(lib, str);
535 void ERR_unload_strings(int lib, ERR_STRING_DATA *str)
537 LHASH_OF(ERR_STRING_DATA) *hash;
539 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
540 hash = get_hash(0, 0);
542 for (; str->error; str++) {
544 str->error |= ERR_PACK(lib, 0, 0);
545 (void)lh_ERR_STRING_DATA_delete(hash, str);
548 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
551 void ERR_free_strings(void)
553 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
554 lh_ERR_STRING_DATA_free(int_error_hash);
555 int_error_hash = NULL;
556 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
559 /********************************************************/
561 void ERR_put_error(int lib, int func, int reason, const char *file, int line)
567 * In the BS2000-OSD POSIX subsystem, the compiler generates path names
568 * in the form "*POSIX(/etc/passwd)". This dirty hack strips them to
569 * something sensible. @@@ We shouldn't modify a const string, though.
571 if (strncmp(file, "*POSIX(", sizeof("*POSIX(") - 1) == 0) {
574 /* Skip the "*POSIX(" prefix */
575 file += sizeof("*POSIX(") - 1;
576 end = &file[strlen(file) - 1];
579 /* Optional: use the basename of the path only. */
580 if ((end = strrchr(file, '/')) != NULL)
584 es = ERR_get_state();
586 es->top = (es->top + 1) % ERR_NUM_ERRORS;
587 if (es->top == es->bottom)
588 es->bottom = (es->bottom + 1) % ERR_NUM_ERRORS;
589 es->err_flags[es->top] = 0;
590 es->err_buffer[es->top] = ERR_PACK(lib, func, reason);
591 es->err_file[es->top] = file;
592 es->err_line[es->top] = line;
593 err_clear_data(es, es->top);
596 void ERR_clear_error(void)
601 es = ERR_get_state();
603 for (i = 0; i < ERR_NUM_ERRORS; i++) {
606 es->top = es->bottom = 0;
609 unsigned long ERR_get_error(void)
611 return (get_error_values(1, 0, NULL, NULL, NULL, NULL));
614 unsigned long ERR_get_error_line(const char **file, int *line)
616 return (get_error_values(1, 0, file, line, NULL, NULL));
619 unsigned long ERR_get_error_line_data(const char **file, int *line,
620 const char **data, int *flags)
622 return (get_error_values(1, 0, file, line, data, flags));
625 unsigned long ERR_peek_error(void)
627 return (get_error_values(0, 0, NULL, NULL, NULL, NULL));
630 unsigned long ERR_peek_error_line(const char **file, int *line)
632 return (get_error_values(0, 0, file, line, NULL, NULL));
635 unsigned long ERR_peek_error_line_data(const char **file, int *line,
636 const char **data, int *flags)
638 return (get_error_values(0, 0, file, line, data, flags));
641 unsigned long ERR_peek_last_error(void)
643 return (get_error_values(0, 1, NULL, NULL, NULL, NULL));
646 unsigned long ERR_peek_last_error_line(const char **file, int *line)
648 return (get_error_values(0, 1, file, line, NULL, NULL));
651 unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
652 const char **data, int *flags)
654 return (get_error_values(0, 1, file, line, data, flags));
657 static unsigned long get_error_values(int inc, int top, const char **file,
658 int *line, const char **data,
665 es = ERR_get_state();
677 return ERR_R_INTERNAL_ERROR;
680 if (es->bottom == es->top)
683 i = es->top; /* last error */
685 i = (es->bottom + 1) % ERR_NUM_ERRORS; /* first error */
687 ret = es->err_buffer[i];
690 es->err_buffer[i] = 0;
693 if ((file != NULL) && (line != NULL)) {
694 if (es->err_file[i] == NULL) {
699 *file = es->err_file[i];
701 *line = es->err_line[i];
707 err_clear_data(es, i);
710 if (es->err_data[i] == NULL) {
715 *data = es->err_data[i];
717 *flags = es->err_data_flags[i];
723 void ERR_error_string_n(unsigned long e, char *buf, size_t len)
725 char lsbuf[64], fsbuf[64], rsbuf[64];
726 const char *ls, *fs, *rs;
727 unsigned long l, f, r;
731 r = ERR_GET_REASON(e);
733 ls = ERR_lib_error_string(e);
734 fs = ERR_func_error_string(e);
735 rs = ERR_reason_error_string(e);
738 BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
740 BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
742 BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
744 BIO_snprintf(buf, len, "error:%08lX:%s:%s:%s", e, ls ? ls : lsbuf,
745 fs ? fs : fsbuf, rs ? rs : rsbuf);
746 if (strlen(buf) == len - 1) {
748 * output may be truncated; make sure we always have 5
749 * colon-separated fields, i.e. 4 colons ...
752 if (len > NUM_COLONS) { /* ... if possible */
756 for (i = 0; i < NUM_COLONS; i++) {
757 char *colon = strchr(s, ':');
758 if (colon == NULL || colon > &buf[len - 1] - NUM_COLONS + i) {
760 * set colon no. i at last possible position (buf[len-1]
761 * is the terminating 0)
763 colon = &buf[len - 1] - NUM_COLONS + i;
772 /* BAD for multi-threading: uses a local buffer if ret == NULL */
774 * ERR_error_string_n should be used instead for ret != NULL as
775 * ERR_error_string cannot know how large the buffer is
777 char *ERR_error_string(unsigned long e, char *ret)
779 static char buf[256];
783 ERR_error_string_n(e, ret, 256);
788 LHASH_OF(ERR_STRING_DATA) *ERR_get_string_table(void)
790 return get_hash(0, 1);
793 LHASH_OF(ERR_STATE) *ERR_get_err_state_table(void)
795 return int_thread_get(0, 1);
798 void ERR_release_err_state_table(LHASH_OF(ERR_STATE) **hash)
800 int_thread_release(hash);
803 const char *ERR_lib_error_string(unsigned long e)
805 ERR_STRING_DATA d, *p;
809 d.error = ERR_PACK(l, 0, 0);
810 p = int_err_get_item(&d);
811 return ((p == NULL) ? NULL : p->string);
814 const char *ERR_func_error_string(unsigned long e)
816 ERR_STRING_DATA d, *p;
821 d.error = ERR_PACK(l, f, 0);
822 p = int_err_get_item(&d);
823 return ((p == NULL) ? NULL : p->string);
826 const char *ERR_reason_error_string(unsigned long e)
828 ERR_STRING_DATA d, *p = NULL;
832 r = ERR_GET_REASON(e);
833 d.error = ERR_PACK(l, 0, r);
834 p = int_err_get_item(&d);
836 d.error = ERR_PACK(0, 0, r);
837 p = int_err_get_item(&d);
839 return ((p == NULL) ? NULL : p->string);
842 void ERR_remove_thread_state(const CRYPTO_THREADID *id)
847 CRYPTO_THREADID_cpy(&tmp.tid, id);
849 CRYPTO_THREADID_current(&tmp.tid);
851 * thread_del_item automatically destroys the LHASH if the number of
852 * items reaches zero.
854 int_thread_del_item(&tmp);
857 #if OPENSSL_API_COMPAT < 0x10000000L
858 void ERR_remove_state(unsigned long pid)
860 ERR_remove_thread_state(NULL);
864 ERR_STATE *ERR_get_state(void)
866 static ERR_STATE fallback;
867 ERR_STATE *ret, tmp, *tmpp = NULL;
871 CRYPTO_THREADID_current(&tid);
872 CRYPTO_THREADID_cpy(&tmp.tid, &tid);
873 ret = int_thread_get_item(&tmp);
875 /* ret == the error state, if NULL, make a new one */
877 ret = OPENSSL_malloc(sizeof(*ret));
880 CRYPTO_THREADID_cpy(&ret->tid, &tid);
883 for (i = 0; i < ERR_NUM_ERRORS; i++) {
884 ret->err_data[i] = NULL;
885 ret->err_data_flags[i] = 0;
887 tmpp = int_thread_set_item(ret);
888 /* To check if insertion failed, do a get. */
889 if (int_thread_get_item(ret) != ret) {
890 ERR_STATE_free(ret); /* could not insert it */
894 * If a race occurred in this function and we came second, tmpp is
895 * the first one that we just replaced.
897 ERR_STATE_free(tmpp);
899 /* Ignore failures from these */
900 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
901 ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE);
906 int ERR_get_next_error_library(void)
910 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
911 ret = int_err_library_number++;
912 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
916 void ERR_set_error_data(char *data, int flags)
921 es = ERR_get_state();
925 i = ERR_NUM_ERRORS - 1;
927 err_clear_data(es, i);
928 es->err_data[i] = data;
929 es->err_data_flags[i] = flags;
932 void ERR_add_error_data(int num, ...)
936 ERR_add_error_vdata(num, args);
940 void ERR_add_error_vdata(int num, va_list args)
946 str = OPENSSL_malloc(s + 1);
952 for (i = 0; i < num; i++) {
953 a = va_arg(args, char *);
954 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
959 p = OPENSSL_realloc(str, s + 1);
966 OPENSSL_strlcat(str, a, (size_t)s + 1);
969 ERR_set_error_data(str, ERR_TXT_MALLOCED | ERR_TXT_STRING);
972 int ERR_set_mark(void)
976 es = ERR_get_state();
978 if (es->bottom == es->top)
980 es->err_flags[es->top] |= ERR_FLAG_MARK;
984 int ERR_pop_to_mark(void)
988 es = ERR_get_state();
990 while (es->bottom != es->top
991 && (es->err_flags[es->top] & ERR_FLAG_MARK) == 0) {
992 err_clear(es, es->top);
995 es->top = ERR_NUM_ERRORS - 1;
998 if (es->bottom == es->top)
1000 es->err_flags[es->top] &= ~ERR_FLAG_MARK;