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_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"},
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"},
180 static ERR_STRING_DATA ERR_str_reasons
[] = {
181 {ERR_R_SYS_LIB
, "system lib"},
182 {ERR_R_BN_LIB
, "BN lib"},
183 {ERR_R_RSA_LIB
, "RSA lib"},
184 {ERR_R_DH_LIB
, "DH lib"},
185 {ERR_R_EVP_LIB
, "EVP lib"},
186 {ERR_R_BUF_LIB
, "BUF lib"},
187 {ERR_R_OBJ_LIB
, "OBJ lib"},
188 {ERR_R_PEM_LIB
, "PEM lib"},
189 {ERR_R_DSA_LIB
, "DSA lib"},
190 {ERR_R_X509_LIB
, "X509 lib"},
191 {ERR_R_ASN1_LIB
, "ASN1 lib"},
192 {ERR_R_CONF_LIB
, "CONF lib"},
193 {ERR_R_CRYPTO_LIB
, "CRYPTO lib"},
194 {ERR_R_EC_LIB
, "EC lib"},
195 {ERR_R_SSL_LIB
, "SSL lib"},
196 {ERR_R_BIO_LIB
, "BIO lib"},
197 {ERR_R_PKCS7_LIB
, "PKCS7 lib"},
198 {ERR_R_X509V3_LIB
, "X509V3 lib"},
199 {ERR_R_PKCS12_LIB
, "PKCS12 lib"},
200 {ERR_R_RAND_LIB
, "RAND lib"},
201 {ERR_R_DSO_LIB
, "DSO lib"},
202 {ERR_R_ENGINE_LIB
, "ENGINE lib"},
203 {ERR_R_OCSP_LIB
, "OCSP lib"},
204 {ERR_R_TS_LIB
, "TS lib"},
205 {ERR_R_ECDSA_LIB
, "ECDSA lib"},
207 {ERR_R_NESTED_ASN1_ERROR
, "nested asn1 error"},
208 {ERR_R_BAD_ASN1_OBJECT_HEADER
, "bad asn1 object header"},
209 {ERR_R_BAD_GET_ASN1_OBJECT_CALL
, "bad get asn1 object call"},
210 {ERR_R_EXPECTING_AN_ASN1_SEQUENCE
, "expecting an asn1 sequence"},
211 {ERR_R_ASN1_LENGTH_MISMATCH
, "asn1 length mismatch"},
212 {ERR_R_MISSING_ASN1_EOS
, "missing asn1 eos"},
214 {ERR_R_FATAL
, "fatal"},
215 {ERR_R_MALLOC_FAILURE
, "malloc failure"},
216 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
,
217 "called a function you should not call"},
218 {ERR_R_PASSED_NULL_PARAMETER
, "passed a null parameter"},
219 {ERR_R_INTERNAL_ERROR
, "internal error"},
220 {ERR_R_DISABLED
, "called a function that was disabled at compile-time"},
226 /* Define the predeclared (but externally opaque) "ERR_FNS" type */
228 /* Works on the "error_hash" string table */
229 LHASH_OF(ERR_STRING_DATA
) *(*cb_err_get
) (int create
);
230 void (*cb_err_del
) (void);
231 ERR_STRING_DATA
*(*cb_err_get_item
) (const ERR_STRING_DATA
*);
232 ERR_STRING_DATA
*(*cb_err_set_item
) (ERR_STRING_DATA
*);
233 ERR_STRING_DATA
*(*cb_err_del_item
) (ERR_STRING_DATA
*);
234 /* Works on the "thread_hash" error-state table */
235 LHASH_OF(ERR_STATE
) *(*cb_thread_get
) (int create
);
236 void (*cb_thread_release
) (LHASH_OF(ERR_STATE
) **hash
);
237 ERR_STATE
*(*cb_thread_get_item
) (const ERR_STATE
*);
238 ERR_STATE
*(*cb_thread_set_item
) (ERR_STATE
*);
239 void (*cb_thread_del_item
) (const ERR_STATE
*);
240 /* Returns the next available error "library" numbers */
241 int (*cb_get_next_lib
) (void);
244 /* Predeclarations of the "err_defaults" functions */
245 static LHASH_OF(ERR_STRING_DATA
) *int_err_get(int create
);
246 static void int_err_del(void);
247 static ERR_STRING_DATA
*int_err_get_item(const ERR_STRING_DATA
*);
248 static ERR_STRING_DATA
*int_err_set_item(ERR_STRING_DATA
*);
249 static ERR_STRING_DATA
*int_err_del_item(ERR_STRING_DATA
*);
250 static LHASH_OF(ERR_STATE
) *int_thread_get(int create
);
251 static void int_thread_release(LHASH_OF(ERR_STATE
) **hash
);
252 static ERR_STATE
*int_thread_get_item(const ERR_STATE
*);
253 static ERR_STATE
*int_thread_set_item(ERR_STATE
*);
254 static void int_thread_del_item(const ERR_STATE
*);
255 static int int_err_get_next_lib(void);
256 /* The static ERR_FNS table using these defaults functions */
257 static const ERR_FNS err_defaults
= {
271 /* The replacable table of ERR_FNS functions we use at run-time */
272 static const ERR_FNS
*err_fns
= NULL
;
274 /* Eg. rather than using "err_get()", use "ERRFN(err_get)()". */
275 #define ERRFN(a) err_fns->cb_##a
278 * The internal state used by "err_defaults" - as such, the setting, reading,
279 * creating, and deleting of this data should only be permitted via the
280 * "err_defaults" functions. This way, a linked module can completely defer
281 * all ERR state operation (together with requisite locking) to the
282 * implementations and state in the loading application.
284 static LHASH_OF(ERR_STRING_DATA
) *int_error_hash
= NULL
;
285 static LHASH_OF(ERR_STATE
) *int_thread_hash
= NULL
;
286 static int int_thread_hash_references
= 0;
287 static int int_err_library_number
= ERR_LIB_USER
;
290 * Internal function that checks whether "err_fns" is set and if not, sets it
293 static void err_fns_check(void)
298 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
300 err_fns
= &err_defaults
;
301 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
304 /* API functions to get or set the underlying ERR functions. */
306 const ERR_FNS
*ERR_get_implementation(void)
312 int ERR_set_implementation(const ERR_FNS
*fns
)
316 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
318 * It's too late if 'err_fns' is non-NULL. BTW: not much point setting an
325 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
330 * These are the callbacks provided to "lh_new()" when creating the LHASH
331 * tables internal to the "err_defaults" implementation.
334 static unsigned long get_error_values(int inc
, int top
, const char **file
,
335 int *line
, const char **data
,
338 /* The internal functions used in the "err_defaults" implementation */
340 static unsigned long err_string_data_hash(const ERR_STRING_DATA
*a
)
342 unsigned long ret
, l
;
345 ret
= l
^ ERR_GET_LIB(l
) ^ ERR_GET_FUNC(l
);
346 return (ret
^ ret
% 19 * 13);
349 static IMPLEMENT_LHASH_HASH_FN(err_string_data
, ERR_STRING_DATA
)
351 static int err_string_data_cmp(const ERR_STRING_DATA
*a
,
352 const ERR_STRING_DATA
*b
)
354 return (int)(a
->error
- b
->error
);
357 static IMPLEMENT_LHASH_COMP_FN(err_string_data
, ERR_STRING_DATA
)
359 static LHASH_OF(ERR_STRING_DATA
) *int_err_get(int create
)
361 LHASH_OF(ERR_STRING_DATA
) *ret
= NULL
;
363 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
364 if (!int_error_hash
&& create
) {
365 CRYPTO_push_info("int_err_get (err.c)");
366 int_error_hash
= lh_ERR_STRING_DATA_new();
370 ret
= int_error_hash
;
371 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
376 static void int_err_del(void)
378 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
379 if (int_error_hash
) {
380 lh_ERR_STRING_DATA_free(int_error_hash
);
381 int_error_hash
= NULL
;
383 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
386 static ERR_STRING_DATA
*int_err_get_item(const ERR_STRING_DATA
*d
)
389 LHASH_OF(ERR_STRING_DATA
) *hash
;
392 hash
= ERRFN(err_get
) (0);
396 CRYPTO_r_lock(CRYPTO_LOCK_ERR
);
397 p
= lh_ERR_STRING_DATA_retrieve(hash
, d
);
398 CRYPTO_r_unlock(CRYPTO_LOCK_ERR
);
403 static ERR_STRING_DATA
*int_err_set_item(ERR_STRING_DATA
*d
)
406 LHASH_OF(ERR_STRING_DATA
) *hash
;
409 hash
= ERRFN(err_get
) (1);
413 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
414 p
= lh_ERR_STRING_DATA_insert(hash
, d
);
415 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
420 static ERR_STRING_DATA
*int_err_del_item(ERR_STRING_DATA
*d
)
423 LHASH_OF(ERR_STRING_DATA
) *hash
;
426 hash
= ERRFN(err_get
) (0);
430 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
431 p
= lh_ERR_STRING_DATA_delete(hash
, d
);
432 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
437 static unsigned long err_state_hash(const ERR_STATE
*a
)
439 return CRYPTO_THREADID_hash(&a
->tid
) * 13;
442 static IMPLEMENT_LHASH_HASH_FN(err_state
, ERR_STATE
)
444 static int err_state_cmp(const ERR_STATE
*a
, const ERR_STATE
*b
)
446 return CRYPTO_THREADID_cmp(&a
->tid
, &b
->tid
);
449 static IMPLEMENT_LHASH_COMP_FN(err_state
, ERR_STATE
)
451 static LHASH_OF(ERR_STATE
) *int_thread_get(int create
)
453 LHASH_OF(ERR_STATE
) *ret
= NULL
;
455 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
456 if (!int_thread_hash
&& create
) {
457 CRYPTO_push_info("int_thread_get (err.c)");
458 int_thread_hash
= lh_ERR_STATE_new();
461 if (int_thread_hash
) {
462 int_thread_hash_references
++;
463 ret
= int_thread_hash
;
465 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
469 static void int_thread_release(LHASH_OF(ERR_STATE
) **hash
)
473 if (hash
== NULL
|| *hash
== NULL
)
476 i
= CRYPTO_add(&int_thread_hash_references
, -1, CRYPTO_LOCK_ERR
);
479 fprintf(stderr
, "%4d:%s\n", int_thread_hash_references
, "ERR");
485 fprintf(stderr
, "int_thread_release, bad reference count\n");
492 static ERR_STATE
*int_thread_get_item(const ERR_STATE
*d
)
495 LHASH_OF(ERR_STATE
) *hash
;
498 hash
= ERRFN(thread_get
) (0);
502 CRYPTO_r_lock(CRYPTO_LOCK_ERR
);
503 p
= lh_ERR_STATE_retrieve(hash
, d
);
504 CRYPTO_r_unlock(CRYPTO_LOCK_ERR
);
506 ERRFN(thread_release
) (&hash
);
510 static ERR_STATE
*int_thread_set_item(ERR_STATE
*d
)
513 LHASH_OF(ERR_STATE
) *hash
;
516 hash
= ERRFN(thread_get
) (1);
520 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
521 p
= lh_ERR_STATE_insert(hash
, d
);
522 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
524 ERRFN(thread_release
) (&hash
);
528 static void int_thread_del_item(const ERR_STATE
*d
)
531 LHASH_OF(ERR_STATE
) *hash
;
534 hash
= ERRFN(thread_get
) (0);
538 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
539 p
= lh_ERR_STATE_delete(hash
, d
);
540 /* make sure we don't leak memory */
541 if (int_thread_hash_references
== 1
542 && int_thread_hash
&& lh_ERR_STATE_num_items(int_thread_hash
) == 0) {
543 lh_ERR_STATE_free(int_thread_hash
);
544 int_thread_hash
= NULL
;
546 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
548 ERRFN(thread_release
) (&hash
);
553 static int int_err_get_next_lib(void)
557 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
558 ret
= int_err_library_number
++;
559 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
564 #ifndef OPENSSL_NO_ERR
565 # define NUM_SYS_STR_REASONS 127
566 # define LEN_SYS_STR_REASON 32
568 static ERR_STRING_DATA SYS_str_reasons
[NUM_SYS_STR_REASONS
+ 1];
570 * SYS_str_reasons is filled with copies of strerror() results at
571 * initialization. 'errno' values up to 127 should cover all usual errors,
572 * others will be displayed numerically by ERR_error_string. It is crucial
573 * that we have something for each reason code that occurs in
574 * ERR_str_reasons, or bogus reason strings will be returned for SYSerr(),
575 * which always gets an errno value and never one of those 'standard' reason
579 static void build_SYS_str_reasons(void)
581 /* OPENSSL_malloc cannot be used here, use static storage instead */
582 static char strerror_tab
[NUM_SYS_STR_REASONS
][LEN_SYS_STR_REASON
];
586 CRYPTO_r_lock(CRYPTO_LOCK_ERR
);
588 CRYPTO_r_unlock(CRYPTO_LOCK_ERR
);
592 CRYPTO_r_unlock(CRYPTO_LOCK_ERR
);
593 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
595 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
599 for (i
= 1; i
<= NUM_SYS_STR_REASONS
; i
++) {
600 ERR_STRING_DATA
*str
= &SYS_str_reasons
[i
- 1];
602 str
->error
= (unsigned long)i
;
603 if (str
->string
== NULL
) {
604 char (*dest
)[LEN_SYS_STR_REASON
] = &(strerror_tab
[i
- 1]);
605 char *src
= strerror(i
);
607 strncpy(*dest
, src
, sizeof *dest
);
608 (*dest
)[sizeof *dest
- 1] = '\0';
612 if (str
->string
== NULL
)
613 str
->string
= "unknown";
617 * Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL}, as
618 * required by ERR_load_strings.
623 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
627 #define err_clear_data(p,i) \
629 if (((p)->err_data[i] != NULL) && \
630 (p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
632 OPENSSL_free((p)->err_data[i]); \
633 (p)->err_data[i]=NULL; \
635 (p)->err_data_flags[i]=0; \
638 #define err_clear(p,i) \
640 (p)->err_flags[i]=0; \
641 (p)->err_buffer[i]=0; \
642 err_clear_data(p,i); \
643 (p)->err_file[i]=NULL; \
644 (p)->err_line[i]= -1; \
647 static void ERR_STATE_free(ERR_STATE
*s
)
654 for (i
= 0; i
< ERR_NUM_ERRORS
; i
++) {
655 err_clear_data(s
, i
);
660 void ERR_load_ERR_strings(void)
663 #ifndef OPENSSL_NO_ERR
664 err_load_strings(0, ERR_str_libraries
);
665 err_load_strings(0, ERR_str_reasons
);
666 err_load_strings(ERR_LIB_SYS
, ERR_str_functs
);
667 build_SYS_str_reasons();
668 err_load_strings(ERR_LIB_SYS
, SYS_str_reasons
);
672 static void err_load_strings(int lib
, ERR_STRING_DATA
*str
)
676 str
->error
|= ERR_PACK(lib
, 0, 0);
677 ERRFN(err_set_item
) (str
);
682 void ERR_load_strings(int lib
, ERR_STRING_DATA
*str
)
684 ERR_load_ERR_strings();
685 err_load_strings(lib
, str
);
688 void ERR_unload_strings(int lib
, ERR_STRING_DATA
*str
)
692 str
->error
|= ERR_PACK(lib
, 0, 0);
693 ERRFN(err_del_item
) (str
);
698 void ERR_free_strings(void)
704 /********************************************************/
706 void ERR_put_error(int lib
, int func
, int reason
, const char *file
, int line
)
712 * In the BS2000-OSD POSIX subsystem, the compiler generates path names
713 * in the form "*POSIX(/etc/passwd)". This dirty hack strips them to
714 * something sensible. @@@ We shouldn't modify a const string, though.
716 if (strncmp(file
, "*POSIX(", sizeof("*POSIX(") - 1) == 0) {
719 /* Skip the "*POSIX(" prefix */
720 file
+= sizeof("*POSIX(") - 1;
721 end
= &file
[strlen(file
) - 1];
724 /* Optional: use the basename of the path only. */
725 if ((end
= strrchr(file
, '/')) != NULL
)
729 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();
748 for (i
= 0; i
< ERR_NUM_ERRORS
; i
++) {
751 es
->top
= es
->bottom
= 0;
754 unsigned long ERR_get_error(void)
756 return (get_error_values(1, 0, NULL
, NULL
, NULL
, NULL
));
759 unsigned long ERR_get_error_line(const char **file
, int *line
)
761 return (get_error_values(1, 0, file
, line
, NULL
, NULL
));
764 unsigned long ERR_get_error_line_data(const char **file
, int *line
,
765 const char **data
, int *flags
)
767 return (get_error_values(1, 0, file
, line
, data
, flags
));
770 unsigned long ERR_peek_error(void)
772 return (get_error_values(0, 0, NULL
, NULL
, NULL
, NULL
));
775 unsigned long ERR_peek_error_line(const char **file
, int *line
)
777 return (get_error_values(0, 0, file
, line
, NULL
, NULL
));
780 unsigned long ERR_peek_error_line_data(const char **file
, int *line
,
781 const char **data
, int *flags
)
783 return (get_error_values(0, 0, file
, line
, data
, flags
));
786 unsigned long ERR_peek_last_error(void)
788 return (get_error_values(0, 1, NULL
, NULL
, NULL
, NULL
));
791 unsigned long ERR_peek_last_error_line(const char **file
, int *line
)
793 return (get_error_values(0, 1, file
, line
, NULL
, NULL
));
796 unsigned long ERR_peek_last_error_line_data(const char **file
, int *line
,
797 const char **data
, int *flags
)
799 return (get_error_values(0, 1, file
, line
, data
, flags
));
802 static unsigned long get_error_values(int inc
, int top
, const char **file
,
803 int *line
, const char **data
,
810 es
= ERR_get_state();
822 return ERR_R_INTERNAL_ERROR
;
825 if (es
->bottom
== es
->top
)
828 i
= es
->top
; /* last error */
830 i
= (es
->bottom
+ 1) % ERR_NUM_ERRORS
; /* first error */
832 ret
= es
->err_buffer
[i
];
835 es
->err_buffer
[i
] = 0;
838 if ((file
!= NULL
) && (line
!= NULL
)) {
839 if (es
->err_file
[i
] == NULL
) {
844 *file
= es
->err_file
[i
];
846 *line
= es
->err_line
[i
];
852 err_clear_data(es
, i
);
855 if (es
->err_data
[i
] == NULL
) {
860 *data
= es
->err_data
[i
];
862 *flags
= es
->err_data_flags
[i
];
868 void ERR_error_string_n(unsigned long e
, char *buf
, size_t len
)
870 char lsbuf
[64], fsbuf
[64], rsbuf
[64];
871 const char *ls
, *fs
, *rs
;
872 unsigned long l
, f
, r
;
876 r
= ERR_GET_REASON(e
);
878 ls
= ERR_lib_error_string(e
);
879 fs
= ERR_func_error_string(e
);
880 rs
= ERR_reason_error_string(e
);
883 BIO_snprintf(lsbuf
, sizeof(lsbuf
), "lib(%lu)", l
);
885 BIO_snprintf(fsbuf
, sizeof(fsbuf
), "func(%lu)", f
);
887 BIO_snprintf(rsbuf
, sizeof(rsbuf
), "reason(%lu)", r
);
889 BIO_snprintf(buf
, len
, "error:%08lX:%s:%s:%s", e
, ls
? ls
: lsbuf
,
890 fs
? fs
: fsbuf
, rs
? rs
: rsbuf
);
891 if (strlen(buf
) == len
- 1) {
893 * output may be truncated; make sure we always have 5
894 * colon-separated fields, i.e. 4 colons ...
897 if (len
> NUM_COLONS
) { /* ... if possible */
901 for (i
= 0; i
< NUM_COLONS
; i
++) {
902 char *colon
= strchr(s
, ':');
903 if (colon
== NULL
|| colon
> &buf
[len
- 1] - NUM_COLONS
+ i
) {
905 * set colon no. i at last possible position (buf[len-1]
906 * is the terminating 0)
908 colon
= &buf
[len
- 1] - NUM_COLONS
+ i
;
917 /* BAD for multi-threading: uses a local buffer if ret == NULL */
919 * ERR_error_string_n should be used instead for ret != NULL as
920 * ERR_error_string cannot know how large the buffer is
922 char *ERR_error_string(unsigned long e
, char *ret
)
924 static char buf
[256];
928 ERR_error_string_n(e
, ret
, 256);
933 LHASH_OF(ERR_STRING_DATA
) *ERR_get_string_table(void)
936 return ERRFN(err_get
) (0);
939 LHASH_OF(ERR_STATE
) *ERR_get_err_state_table(void)
942 return ERRFN(thread_get
) (0);
945 void ERR_release_err_state_table(LHASH_OF(ERR_STATE
) **hash
)
948 ERRFN(thread_release
) (hash
);
951 const char *ERR_lib_error_string(unsigned long e
)
953 ERR_STRING_DATA d
, *p
;
958 d
.error
= ERR_PACK(l
, 0, 0);
959 p
= ERRFN(err_get_item
) (&d
);
960 return ((p
== NULL
) ? NULL
: p
->string
);
963 const char *ERR_func_error_string(unsigned long e
)
965 ERR_STRING_DATA d
, *p
;
971 d
.error
= ERR_PACK(l
, f
, 0);
972 p
= ERRFN(err_get_item
) (&d
);
973 return ((p
== NULL
) ? NULL
: p
->string
);
976 const char *ERR_reason_error_string(unsigned long e
)
978 ERR_STRING_DATA d
, *p
= NULL
;
983 r
= ERR_GET_REASON(e
);
984 d
.error
= ERR_PACK(l
, 0, r
);
985 p
= ERRFN(err_get_item
) (&d
);
987 d
.error
= ERR_PACK(0, 0, r
);
988 p
= ERRFN(err_get_item
) (&d
);
990 return ((p
== NULL
) ? NULL
: p
->string
);
993 void ERR_remove_thread_state(const CRYPTO_THREADID
*id
)
998 CRYPTO_THREADID_cpy(&tmp
.tid
, id
);
1000 CRYPTO_THREADID_current(&tmp
.tid
);
1003 * thread_del_item automatically destroys the LHASH if the number of
1004 * items reaches zero.
1006 ERRFN(thread_del_item
) (&tmp
);
1009 #ifndef OPENSSL_NO_DEPRECATED
1010 void ERR_remove_state(unsigned long pid
)
1012 ERR_remove_thread_state(NULL
);
1016 ERR_STATE
*ERR_get_state(void)
1018 static ERR_STATE fallback
;
1019 ERR_STATE
*ret
, tmp
, *tmpp
= NULL
;
1021 CRYPTO_THREADID tid
;
1024 CRYPTO_THREADID_current(&tid
);
1025 CRYPTO_THREADID_cpy(&tmp
.tid
, &tid
);
1026 ret
= ERRFN(thread_get_item
) (&tmp
);
1028 /* ret == the error state, if NULL, make a new one */
1030 ret
= (ERR_STATE
*)OPENSSL_malloc(sizeof(ERR_STATE
));
1033 CRYPTO_THREADID_cpy(&ret
->tid
, &tid
);
1036 for (i
= 0; i
< ERR_NUM_ERRORS
; i
++) {
1037 ret
->err_data
[i
] = NULL
;
1038 ret
->err_data_flags
[i
] = 0;
1040 tmpp
= ERRFN(thread_set_item
) (ret
);
1041 /* To check if insertion failed, do a get. */
1042 if (ERRFN(thread_get_item
) (ret
) != ret
) {
1043 ERR_STATE_free(ret
); /* could not insert it */
1047 * If a race occurred in this function and we came second, tmpp is
1048 * the first one that we just replaced.
1051 ERR_STATE_free(tmpp
);
1056 int ERR_get_next_error_library(void)
1059 return ERRFN(get_next_lib
) ();
1062 void ERR_set_error_data(char *data
, int flags
)
1067 es
= ERR_get_state();
1071 i
= ERR_NUM_ERRORS
- 1;
1073 err_clear_data(es
, i
);
1074 es
->err_data
[i
] = data
;
1075 es
->err_data_flags
[i
] = flags
;
1078 void ERR_add_error_data(int num
, ...)
1081 va_start(args
, num
);
1082 ERR_add_error_vdata(num
, args
);
1086 void ERR_add_error_vdata(int num
, va_list args
)
1092 str
= OPENSSL_malloc(s
+ 1);
1098 for (i
= 0; i
< num
; i
++) {
1099 a
= va_arg(args
, char *);
1100 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
1105 p
= OPENSSL_realloc(str
, s
+ 1);
1112 BUF_strlcat(str
, a
, (size_t)s
+ 1);
1115 ERR_set_error_data(str
, ERR_TXT_MALLOCED
| ERR_TXT_STRING
);
1118 int ERR_set_mark(void)
1122 es
= ERR_get_state();
1124 if (es
->bottom
== es
->top
)
1126 es
->err_flags
[es
->top
] |= ERR_FLAG_MARK
;
1130 int ERR_pop_to_mark(void)
1134 es
= ERR_get_state();
1136 while (es
->bottom
!= es
->top
1137 && (es
->err_flags
[es
->top
] & ERR_FLAG_MARK
) == 0) {
1138 err_clear(es
, es
->top
);
1141 es
->top
= ERR_NUM_ERRORS
- 1;
1144 if (es
->bottom
== es
->top
)
1146 es
->err_flags
[es
->top
] &= ~ERR_FLAG_MARK
;