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 "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_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"},
161 static ERR_STRING_DATA ERR_str_functs[] = {
162 {ERR_PACK(0, SYS_F_FOPEN, 0), "fopen"},
163 {ERR_PACK(0, SYS_F_CONNECT, 0), "connect"},
164 {ERR_PACK(0, SYS_F_GETSERVBYNAME, 0), "getservbyname"},
165 {ERR_PACK(0, SYS_F_SOCKET, 0), "socket"},
166 {ERR_PACK(0, SYS_F_IOCTLSOCKET, 0), "ioctlsocket"},
167 {ERR_PACK(0, SYS_F_BIND, 0), "bind"},
168 {ERR_PACK(0, SYS_F_LISTEN, 0), "listen"},
169 {ERR_PACK(0, SYS_F_ACCEPT, 0), "accept"},
170 # ifdef OPENSSL_SYS_WINDOWS
171 {ERR_PACK(0, SYS_F_WSASTARTUP, 0), "WSAstartup"},
173 {ERR_PACK(0, SYS_F_OPENDIR, 0), "opendir"},
174 {ERR_PACK(0, SYS_F_FREAD, 0), "fread"},
175 {ERR_PACK(0, SYS_F_FFLUSH, 0), "fflush"},
179 static ERR_STRING_DATA ERR_str_reasons[] = {
180 {ERR_R_SYS_LIB, "system lib"},
181 {ERR_R_BN_LIB, "BN lib"},
182 {ERR_R_RSA_LIB, "RSA lib"},
183 {ERR_R_DH_LIB, "DH lib"},
184 {ERR_R_EVP_LIB, "EVP lib"},
185 {ERR_R_BUF_LIB, "BUF lib"},
186 {ERR_R_OBJ_LIB, "OBJ lib"},
187 {ERR_R_PEM_LIB, "PEM lib"},
188 {ERR_R_DSA_LIB, "DSA lib"},
189 {ERR_R_X509_LIB, "X509 lib"},
190 {ERR_R_ASN1_LIB, "ASN1 lib"},
191 {ERR_R_CONF_LIB, "CONF lib"},
192 {ERR_R_CRYPTO_LIB, "CRYPTO lib"},
193 {ERR_R_EC_LIB, "EC lib"},
194 {ERR_R_SSL_LIB, "SSL lib"},
195 {ERR_R_BIO_LIB, "BIO lib"},
196 {ERR_R_PKCS7_LIB, "PKCS7 lib"},
197 {ERR_R_X509V3_LIB, "X509V3 lib"},
198 {ERR_R_PKCS12_LIB, "PKCS12 lib"},
199 {ERR_R_RAND_LIB, "RAND lib"},
200 {ERR_R_DSO_LIB, "DSO lib"},
201 {ERR_R_ENGINE_LIB, "ENGINE lib"},
202 {ERR_R_OCSP_LIB, "OCSP lib"},
203 {ERR_R_TS_LIB, "TS lib"},
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"},
212 {ERR_R_FATAL, "fatal"},
213 {ERR_R_MALLOC_FAILURE, "malloc failure"},
214 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED,
215 "called a function you should not call"},
216 {ERR_R_PASSED_NULL_PARAMETER, "passed a null parameter"},
217 {ERR_R_INTERNAL_ERROR, "internal error"},
218 {ERR_R_DISABLED, "called a function that was disabled at compile-time"},
224 /* Define the predeclared (but externally opaque) "ERR_FNS" type */
226 /* Works on the "error_hash" string table */
227 LHASH_OF(ERR_STRING_DATA) *(*cb_err_get) (int create);
228 void (*cb_err_del) (void);
229 ERR_STRING_DATA *(*cb_err_get_item) (const ERR_STRING_DATA *);
230 ERR_STRING_DATA *(*cb_err_set_item) (ERR_STRING_DATA *);
231 ERR_STRING_DATA *(*cb_err_del_item) (ERR_STRING_DATA *);
232 /* Works on the "thread_hash" error-state table */
233 LHASH_OF(ERR_STATE) *(*cb_thread_get) (int create);
234 void (*cb_thread_release) (LHASH_OF(ERR_STATE) **hash);
235 ERR_STATE *(*cb_thread_get_item) (const ERR_STATE *);
236 ERR_STATE *(*cb_thread_set_item) (ERR_STATE *);
237 void (*cb_thread_del_item) (const ERR_STATE *);
238 /* Returns the next available error "library" numbers */
239 int (*cb_get_next_lib) (void);
242 /* Predeclarations of the "err_defaults" functions */
243 static LHASH_OF(ERR_STRING_DATA) *int_err_get(int create);
244 static void int_err_del(void);
245 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
246 static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *);
247 static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *);
248 static LHASH_OF(ERR_STATE) *int_thread_get(int create);
249 static void int_thread_release(LHASH_OF(ERR_STATE) **hash);
250 static ERR_STATE *int_thread_get_item(const ERR_STATE *);
251 static ERR_STATE *int_thread_set_item(ERR_STATE *);
252 static void int_thread_del_item(const ERR_STATE *);
253 static int int_err_get_next_lib(void);
254 /* The static ERR_FNS table using these defaults functions */
255 static const ERR_FNS err_defaults = {
269 /* The replacable table of ERR_FNS functions we use at run-time */
270 static const ERR_FNS *err_fns = NULL;
272 /* Eg. rather than using "err_get()", use "ERRFN(err_get)()". */
273 #define ERRFN(a) err_fns->cb_##a
276 * The internal state used by "err_defaults" - as such, the setting, reading,
277 * creating, and deleting of this data should only be permitted via the
278 * "err_defaults" functions. This way, a linked module can completely defer
279 * all ERR state operation (together with requisite locking) to the
280 * implementations and state in the loading application.
282 static LHASH_OF(ERR_STRING_DATA) *int_error_hash = NULL;
283 static LHASH_OF(ERR_STATE) *int_thread_hash = NULL;
284 static int int_thread_hash_references = 0;
285 static int int_err_library_number = ERR_LIB_USER;
288 * Internal function that checks whether "err_fns" is set and if not, sets it
291 static void err_fns_check(void)
296 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
298 err_fns = &err_defaults;
299 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
302 /* API functions to get or set the underlying ERR functions. */
304 const ERR_FNS *ERR_get_implementation(void)
310 int ERR_set_implementation(const ERR_FNS *fns)
314 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
316 * It's too late if 'err_fns' is non-NULL. BTW: not much point setting an
323 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
328 * These are the callbacks provided to "lh_new()" when creating the LHASH
329 * tables internal to the "err_defaults" implementation.
332 static unsigned long get_error_values(int inc, int top, const char **file,
333 int *line, const char **data,
336 /* The internal functions used in the "err_defaults" implementation */
338 static unsigned long err_string_data_hash(const ERR_STRING_DATA *a)
340 unsigned long ret, l;
343 ret = l ^ ERR_GET_LIB(l) ^ ERR_GET_FUNC(l);
344 return (ret ^ ret % 19 * 13);
347 static IMPLEMENT_LHASH_HASH_FN(err_string_data, ERR_STRING_DATA)
349 static int err_string_data_cmp(const ERR_STRING_DATA *a,
350 const ERR_STRING_DATA *b)
352 return (int)(a->error - b->error);
355 static IMPLEMENT_LHASH_COMP_FN(err_string_data, ERR_STRING_DATA)
357 static LHASH_OF(ERR_STRING_DATA) *int_err_get(int create)
359 LHASH_OF(ERR_STRING_DATA) *ret = NULL;
361 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
362 if (!int_error_hash && create) {
363 CRYPTO_push_info("int_err_get (err.c)");
364 int_error_hash = lh_ERR_STRING_DATA_new();
368 ret = int_error_hash;
369 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
374 static void int_err_del(void)
376 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
377 if (int_error_hash) {
378 lh_ERR_STRING_DATA_free(int_error_hash);
379 int_error_hash = NULL;
381 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
384 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)
387 LHASH_OF(ERR_STRING_DATA) *hash;
390 hash = ERRFN(err_get) (0);
394 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
395 p = lh_ERR_STRING_DATA_retrieve(hash, d);
396 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
401 static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *d)
404 LHASH_OF(ERR_STRING_DATA) *hash;
407 hash = ERRFN(err_get) (1);
411 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
412 p = lh_ERR_STRING_DATA_insert(hash, d);
413 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
418 static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *d)
421 LHASH_OF(ERR_STRING_DATA) *hash;
424 hash = ERRFN(err_get) (0);
428 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
429 p = lh_ERR_STRING_DATA_delete(hash, d);
430 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
435 static unsigned long err_state_hash(const ERR_STATE *a)
437 return CRYPTO_THREADID_hash(&a->tid) * 13;
440 static IMPLEMENT_LHASH_HASH_FN(err_state, ERR_STATE)
442 static int err_state_cmp(const ERR_STATE *a, const ERR_STATE *b)
444 return CRYPTO_THREADID_cmp(&a->tid, &b->tid);
447 static IMPLEMENT_LHASH_COMP_FN(err_state, ERR_STATE)
449 static LHASH_OF(ERR_STATE) *int_thread_get(int create)
451 LHASH_OF(ERR_STATE) *ret = NULL;
453 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
454 if (!int_thread_hash && create) {
455 CRYPTO_push_info("int_thread_get (err.c)");
456 int_thread_hash = lh_ERR_STATE_new();
459 if (int_thread_hash) {
460 int_thread_hash_references++;
461 ret = int_thread_hash;
463 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
467 static void int_thread_release(LHASH_OF(ERR_STATE) **hash)
471 if (hash == NULL || *hash == NULL)
474 i = CRYPTO_add(&int_thread_hash_references, -1, CRYPTO_LOCK_ERR);
477 fprintf(stderr, "%4d:%s\n", int_thread_hash_references, "ERR");
483 fprintf(stderr, "int_thread_release, bad reference count\n");
490 static ERR_STATE *int_thread_get_item(const ERR_STATE *d)
493 LHASH_OF(ERR_STATE) *hash;
496 hash = ERRFN(thread_get) (0);
500 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
501 p = lh_ERR_STATE_retrieve(hash, d);
502 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
504 ERRFN(thread_release) (&hash);
508 static ERR_STATE *int_thread_set_item(ERR_STATE *d)
511 LHASH_OF(ERR_STATE) *hash;
514 hash = ERRFN(thread_get) (1);
518 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
519 p = lh_ERR_STATE_insert(hash, d);
520 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
522 ERRFN(thread_release) (&hash);
526 static void int_thread_del_item(const ERR_STATE *d)
529 LHASH_OF(ERR_STATE) *hash;
532 hash = ERRFN(thread_get) (0);
536 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
537 p = lh_ERR_STATE_delete(hash, d);
538 /* make sure we don't leak memory */
539 if (int_thread_hash_references == 1
540 && int_thread_hash && lh_ERR_STATE_num_items(int_thread_hash) == 0) {
541 lh_ERR_STATE_free(int_thread_hash);
542 int_thread_hash = NULL;
544 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
546 ERRFN(thread_release) (&hash);
551 static int int_err_get_next_lib(void)
555 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
556 ret = int_err_library_number++;
557 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
562 #ifndef OPENSSL_NO_ERR
563 # define NUM_SYS_STR_REASONS 127
564 # define LEN_SYS_STR_REASON 32
566 static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];
568 * SYS_str_reasons is filled with copies of strerror() results at
569 * initialization. 'errno' values up to 127 should cover all usual errors,
570 * others will be displayed numerically by ERR_error_string. It is crucial
571 * that we have something for each reason code that occurs in
572 * ERR_str_reasons, or bogus reason strings will be returned for SYSerr(),
573 * which always gets an errno value and never one of those 'standard' reason
577 static void build_SYS_str_reasons(void)
579 /* OPENSSL_malloc cannot be used here, use static storage instead */
580 static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON];
584 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
586 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
590 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
591 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
593 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
597 for (i = 1; i <= NUM_SYS_STR_REASONS; i++) {
598 ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
600 str->error = (unsigned long)i;
601 if (str->string == NULL) {
602 char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]);
603 char *src = strerror(i);
605 strncpy(*dest, src, sizeof(*dest));
606 (*dest)[sizeof(*dest) - 1] = '\0';
610 if (str->string == NULL)
611 str->string = "unknown";
615 * Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL}, as
616 * required by ERR_load_strings.
621 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
625 #define err_clear_data(p,i) \
627 if (((p)->err_data[i] != NULL) && \
628 (p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
630 OPENSSL_free((p)->err_data[i]); \
631 (p)->err_data[i]=NULL; \
633 (p)->err_data_flags[i]=0; \
636 #define err_clear(p,i) \
638 (p)->err_flags[i]=0; \
639 (p)->err_buffer[i]=0; \
640 err_clear_data(p,i); \
641 (p)->err_file[i]=NULL; \
642 (p)->err_line[i]= -1; \
645 static void ERR_STATE_free(ERR_STATE *s)
652 for (i = 0; i < ERR_NUM_ERRORS; i++) {
653 err_clear_data(s, i);
658 void ERR_load_ERR_strings(void)
661 #ifndef OPENSSL_NO_ERR
662 err_load_strings(0, ERR_str_libraries);
663 err_load_strings(0, ERR_str_reasons);
664 err_load_strings(ERR_LIB_SYS, ERR_str_functs);
665 build_SYS_str_reasons();
666 err_load_strings(ERR_LIB_SYS, SYS_str_reasons);
670 static void err_load_strings(int lib, ERR_STRING_DATA *str)
674 str->error |= ERR_PACK(lib, 0, 0);
675 ERRFN(err_set_item) (str);
680 void ERR_load_strings(int lib, ERR_STRING_DATA *str)
682 ERR_load_ERR_strings();
683 err_load_strings(lib, str);
686 void ERR_unload_strings(int lib, ERR_STRING_DATA *str)
690 str->error |= ERR_PACK(lib, 0, 0);
691 ERRFN(err_del_item) (str);
696 void ERR_free_strings(void)
702 /********************************************************/
704 void ERR_put_error(int lib, int func, int reason, const char *file, int line)
710 * In the BS2000-OSD POSIX subsystem, the compiler generates path names
711 * in the form "*POSIX(/etc/passwd)". This dirty hack strips them to
712 * something sensible. @@@ We shouldn't modify a const string, though.
714 if (strncmp(file, "*POSIX(", sizeof("*POSIX(") - 1) == 0) {
717 /* Skip the "*POSIX(" prefix */
718 file += sizeof("*POSIX(") - 1;
719 end = &file[strlen(file) - 1];
722 /* Optional: use the basename of the path only. */
723 if ((end = strrchr(file, '/')) != NULL)
727 es = ERR_get_state();
731 es->top = (es->top + 1) % ERR_NUM_ERRORS;
732 if (es->top == es->bottom)
733 es->bottom = (es->bottom + 1) % ERR_NUM_ERRORS;
734 es->err_flags[es->top] = 0;
735 es->err_buffer[es->top] = ERR_PACK(lib, func, reason);
736 es->err_file[es->top] = file;
737 es->err_line[es->top] = line;
738 err_clear_data(es, es->top);
741 void ERR_clear_error(void)
746 es = ERR_get_state();
750 for (i = 0; i < ERR_NUM_ERRORS; i++) {
753 es->top = es->bottom = 0;
756 unsigned long ERR_get_error(void)
758 return (get_error_values(1, 0, NULL, NULL, NULL, NULL));
761 unsigned long ERR_get_error_line(const char **file, int *line)
763 return (get_error_values(1, 0, file, line, NULL, NULL));
766 unsigned long ERR_get_error_line_data(const char **file, int *line,
767 const char **data, int *flags)
769 return (get_error_values(1, 0, file, line, data, flags));
772 unsigned long ERR_peek_error(void)
774 return (get_error_values(0, 0, NULL, NULL, NULL, NULL));
777 unsigned long ERR_peek_error_line(const char **file, int *line)
779 return (get_error_values(0, 0, file, line, NULL, NULL));
782 unsigned long ERR_peek_error_line_data(const char **file, int *line,
783 const char **data, int *flags)
785 return (get_error_values(0, 0, file, line, data, flags));
788 unsigned long ERR_peek_last_error(void)
790 return (get_error_values(0, 1, NULL, NULL, NULL, NULL));
793 unsigned long ERR_peek_last_error_line(const char **file, int *line)
795 return (get_error_values(0, 1, file, line, NULL, NULL));
798 unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
799 const char **data, int *flags)
801 return (get_error_values(0, 1, file, line, data, flags));
804 static unsigned long get_error_values(int inc, int top, const char **file,
805 int *line, const char **data,
812 es = ERR_get_state();
826 return ERR_R_INTERNAL_ERROR;
829 if (es->bottom == es->top)
832 i = es->top; /* last error */
834 i = (es->bottom + 1) % ERR_NUM_ERRORS; /* first error */
836 ret = es->err_buffer[i];
839 es->err_buffer[i] = 0;
842 if ((file != NULL) && (line != NULL)) {
843 if (es->err_file[i] == NULL) {
848 *file = es->err_file[i];
850 *line = es->err_line[i];
856 err_clear_data(es, i);
859 if (es->err_data[i] == NULL) {
864 *data = es->err_data[i];
866 *flags = es->err_data_flags[i];
872 void ERR_error_string_n(unsigned long e, char *buf, size_t len)
874 char lsbuf[64], fsbuf[64], rsbuf[64];
875 const char *ls, *fs, *rs;
876 unsigned long l, f, r;
883 r = ERR_GET_REASON(e);
885 ls = ERR_lib_error_string(e);
886 fs = ERR_func_error_string(e);
887 rs = ERR_reason_error_string(e);
890 BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
892 BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
894 BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
896 BIO_snprintf(buf, len, "error:%08lX:%s:%s:%s", e, ls ? ls : lsbuf,
897 fs ? fs : fsbuf, rs ? rs : rsbuf);
898 if (strlen(buf) == len - 1) {
900 * output may be truncated; make sure we always have 5
901 * colon-separated fields, i.e. 4 colons ...
904 if (len > NUM_COLONS) { /* ... if possible */
908 for (i = 0; i < NUM_COLONS; i++) {
909 char *colon = strchr(s, ':');
910 if (colon == NULL || colon > &buf[len - 1] - NUM_COLONS + i) {
912 * set colon no. i at last possible position (buf[len-1]
913 * is the terminating 0)
915 colon = &buf[len - 1] - NUM_COLONS + i;
924 /* BAD for multi-threading: uses a local buffer if ret == NULL */
926 * ERR_error_string_n should be used instead for ret != NULL as
927 * ERR_error_string cannot know how large the buffer is
929 char *ERR_error_string(unsigned long e, char *ret)
931 static char buf[256];
935 ERR_error_string_n(e, ret, 256);
940 LHASH_OF(ERR_STRING_DATA) *ERR_get_string_table(void)
943 return ERRFN(err_get) (0);
946 LHASH_OF(ERR_STATE) *ERR_get_err_state_table(void)
949 return ERRFN(thread_get) (0);
952 void ERR_release_err_state_table(LHASH_OF(ERR_STATE) **hash)
955 ERRFN(thread_release) (hash);
958 const char *ERR_lib_error_string(unsigned long e)
960 ERR_STRING_DATA d, *p;
965 d.error = ERR_PACK(l, 0, 0);
966 p = ERRFN(err_get_item) (&d);
967 return ((p == NULL) ? NULL : p->string);
970 const char *ERR_func_error_string(unsigned long e)
972 ERR_STRING_DATA d, *p;
978 d.error = ERR_PACK(l, f, 0);
979 p = ERRFN(err_get_item) (&d);
980 return ((p == NULL) ? NULL : p->string);
983 const char *ERR_reason_error_string(unsigned long e)
985 ERR_STRING_DATA d, *p = NULL;
990 r = ERR_GET_REASON(e);
991 d.error = ERR_PACK(l, 0, r);
992 p = ERRFN(err_get_item) (&d);
994 d.error = ERR_PACK(0, 0, r);
995 p = ERRFN(err_get_item) (&d);
997 return ((p == NULL) ? NULL : p->string);
1000 void ERR_remove_thread_state(const CRYPTO_THREADID *id)
1005 CRYPTO_THREADID_cpy(&tmp.tid, id);
1007 CRYPTO_THREADID_current(&tmp.tid);
1010 * thread_del_item automatically destroys the LHASH if the number of
1011 * items reaches zero.
1013 ERRFN(thread_del_item) (&tmp);
1016 #ifndef OPENSSL_NO_DEPRECATED
1017 void ERR_remove_state(unsigned long pid)
1019 ERR_remove_thread_state(NULL);
1023 ERR_STATE *ERR_get_state(void)
1025 ERR_STATE *ret, tmp, *tmpp = NULL;
1027 CRYPTO_THREADID tid;
1030 CRYPTO_THREADID_current(&tid);
1031 CRYPTO_THREADID_cpy(&tmp.tid, &tid);
1032 ret = ERRFN(thread_get_item) (&tmp);
1034 /* ret == the error state, if NULL, make a new one */
1036 ret = (ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE));
1039 CRYPTO_THREADID_cpy(&ret->tid, &tid);
1042 for (i = 0; i < ERR_NUM_ERRORS; i++) {
1043 ret->err_data[i] = NULL;
1044 ret->err_data_flags[i] = 0;
1046 tmpp = ERRFN(thread_set_item) (ret);
1047 /* To check if insertion failed, do a get. */
1048 if (ERRFN(thread_get_item) (ret) != ret) {
1049 ERR_STATE_free(ret); /* could not insert it */
1053 * If a race occured in this function and we came second, tmpp is the
1054 * first one that we just replaced.
1057 ERR_STATE_free(tmpp);
1062 int ERR_get_next_error_library(void)
1065 return ERRFN(get_next_lib) ();
1068 void ERR_set_error_data(char *data, int flags)
1073 es = ERR_get_state();
1079 err_clear_data(es, i);
1080 es->err_data[i] = data;
1081 es->err_data_flags[i] = flags;
1084 void ERR_add_error_data(int num, ...)
1087 va_start(args, num);
1088 ERR_add_error_vdata(num, args);
1092 void ERR_add_error_vdata(int num, va_list args)
1098 str = OPENSSL_malloc(s + 1);
1104 for (i = 0; i < num; i++) {
1105 a = va_arg(args, char *);
1106 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
1111 p = OPENSSL_realloc(str, s + 1);
1118 BUF_strlcat(str, a, (size_t)s + 1);
1121 ERR_set_error_data(str, ERR_TXT_MALLOCED | ERR_TXT_STRING);
1124 int ERR_set_mark(void)
1128 es = ERR_get_state();
1132 if (es->bottom == es->top)
1134 es->err_flags[es->top] |= ERR_FLAG_MARK;
1138 int ERR_pop_to_mark(void)
1142 es = ERR_get_state();
1146 while (es->bottom != es->top
1147 && (es->err_flags[es->top] & ERR_FLAG_MARK) == 0) {
1148 err_clear(es, es->top);
1151 es->top = ERR_NUM_ERRORS - 1;
1154 if (es->bottom == es->top)
1156 es->err_flags[es->top] &= ~ERR_FLAG_MARK;