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[]=
131 {ERR_PACK(ERR_LIB_NONE,0,0) ,"unknown library"},
132 {ERR_PACK(ERR_LIB_SYS,0,0) ,"system library"},
133 {ERR_PACK(ERR_LIB_BN,0,0) ,"bignum routines"},
134 {ERR_PACK(ERR_LIB_RSA,0,0) ,"rsa routines"},
135 {ERR_PACK(ERR_LIB_DH,0,0) ,"Diffie-Hellman routines"},
136 {ERR_PACK(ERR_LIB_EVP,0,0) ,"digital envelope routines"},
137 {ERR_PACK(ERR_LIB_BUF,0,0) ,"memory buffer routines"},
138 {ERR_PACK(ERR_LIB_OBJ,0,0) ,"object identifier routines"},
139 {ERR_PACK(ERR_LIB_PEM,0,0) ,"PEM routines"},
140 {ERR_PACK(ERR_LIB_DSA,0,0) ,"dsa routines"},
141 {ERR_PACK(ERR_LIB_X509,0,0) ,"x509 certificate routines"},
142 {ERR_PACK(ERR_LIB_ASN1,0,0) ,"asn1 encoding routines"},
143 {ERR_PACK(ERR_LIB_CONF,0,0) ,"configuration file routines"},
144 {ERR_PACK(ERR_LIB_CRYPTO,0,0) ,"common libcrypto routines"},
145 {ERR_PACK(ERR_LIB_EC,0,0) ,"elliptic curve routines"},
146 {ERR_PACK(ERR_LIB_SSL,0,0) ,"SSL routines"},
147 {ERR_PACK(ERR_LIB_BIO,0,0) ,"BIO routines"},
148 {ERR_PACK(ERR_LIB_PKCS7,0,0) ,"PKCS7 routines"},
149 {ERR_PACK(ERR_LIB_X509V3,0,0) ,"X509 V3 routines"},
150 {ERR_PACK(ERR_LIB_PKCS12,0,0) ,"PKCS12 routines"},
151 {ERR_PACK(ERR_LIB_RAND,0,0) ,"random number generator"},
152 {ERR_PACK(ERR_LIB_DSO,0,0) ,"DSO support routines"},
153 {ERR_PACK(ERR_LIB_TS,0,0) ,"time stamp routines"},
154 {ERR_PACK(ERR_LIB_ENGINE,0,0) ,"engine routines"},
155 {ERR_PACK(ERR_LIB_OCSP,0,0) ,"OCSP routines"},
156 {ERR_PACK(ERR_LIB_FIPS,0,0) ,"FIPS routines"},
157 {ERR_PACK(ERR_LIB_CMS,0,0) ,"CMS routines"},
158 {ERR_PACK(ERR_LIB_HMAC,0,0) ,"HMAC routines"},
162 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[]=
182 {ERR_R_SYS_LIB ,"system lib"},
183 {ERR_R_BN_LIB ,"BN lib"},
184 {ERR_R_RSA_LIB ,"RSA lib"},
185 {ERR_R_DH_LIB ,"DH lib"},
186 {ERR_R_EVP_LIB ,"EVP lib"},
187 {ERR_R_BUF_LIB ,"BUF lib"},
188 {ERR_R_OBJ_LIB ,"OBJ lib"},
189 {ERR_R_PEM_LIB ,"PEM lib"},
190 {ERR_R_DSA_LIB ,"DSA lib"},
191 {ERR_R_X509_LIB ,"X509 lib"},
192 {ERR_R_ASN1_LIB ,"ASN1 lib"},
193 {ERR_R_CONF_LIB ,"CONF lib"},
194 {ERR_R_CRYPTO_LIB ,"CRYPTO lib"},
195 {ERR_R_EC_LIB ,"EC lib"},
196 {ERR_R_SSL_LIB ,"SSL lib"},
197 {ERR_R_BIO_LIB ,"BIO lib"},
198 {ERR_R_PKCS7_LIB ,"PKCS7 lib"},
199 {ERR_R_X509V3_LIB ,"X509V3 lib"},
200 {ERR_R_PKCS12_LIB ,"PKCS12 lib"},
201 {ERR_R_RAND_LIB ,"RAND lib"},
202 {ERR_R_DSO_LIB ,"DSO lib"},
203 {ERR_R_ENGINE_LIB ,"ENGINE lib"},
204 {ERR_R_OCSP_LIB ,"OCSP lib"},
205 {ERR_R_TS_LIB ,"TS lib"},
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 ,"called a function you should not call"},
217 {ERR_R_PASSED_NULL_PARAMETER ,"passed a null parameter"},
218 {ERR_R_INTERNAL_ERROR ,"internal error"},
219 {ERR_R_DISABLED ,"called a function that was disabled at compile-time"},
226 /* Define the predeclared (but externally opaque) "ERR_FNS" type */
229 /* Works on the "error_hash" string table */
230 LHASH_OF(ERR_STRING_DATA) *(*cb_err_get)(int create);
231 void (*cb_err_del)(void);
232 ERR_STRING_DATA *(*cb_err_get_item)(const ERR_STRING_DATA *);
233 ERR_STRING_DATA *(*cb_err_set_item)(ERR_STRING_DATA *);
234 ERR_STRING_DATA *(*cb_err_del_item)(ERR_STRING_DATA *);
235 /* Works on the "thread_hash" error-state table */
236 LHASH_OF(ERR_STATE) *(*cb_thread_get)(int create);
237 void (*cb_thread_release)(LHASH_OF(ERR_STATE) **hash);
238 ERR_STATE *(*cb_thread_get_item)(const ERR_STATE *);
239 ERR_STATE *(*cb_thread_set_item)(ERR_STATE *);
240 void (*cb_thread_del_item)(const ERR_STATE *);
241 /* Returns the next available error "library" numbers */
242 int (*cb_get_next_lib)(void);
245 /* Predeclarations of the "err_defaults" functions */
246 static LHASH_OF(ERR_STRING_DATA) *int_err_get(int create);
247 static void int_err_del(void);
248 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
249 static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *);
250 static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *);
251 static LHASH_OF(ERR_STATE) *int_thread_get(int create);
252 static void int_thread_release(LHASH_OF(ERR_STATE) **hash);
253 static ERR_STATE *int_thread_get_item(const ERR_STATE *);
254 static ERR_STATE *int_thread_set_item(ERR_STATE *);
255 static void int_thread_del_item(const ERR_STATE *);
256 static int int_err_get_next_lib(void);
257 /* The static ERR_FNS table using these defaults functions */
258 static const ERR_FNS err_defaults =
273 /* The replacable table of ERR_FNS functions we use at run-time */
274 static const ERR_FNS *err_fns = NULL;
276 /* Eg. rather than using "err_get()", use "ERRFN(err_get)()". */
277 #define ERRFN(a) err_fns->cb_##a
279 /* The internal state used by "err_defaults" - as such, the setting, reading,
280 * creating, and deleting of this data should only be permitted via the
281 * "err_defaults" functions. This way, a linked module can completely defer all
282 * ERR state operation (together with requisite locking) to the implementations
283 * 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;
289 /* Internal function that checks whether "err_fns" is set and if not, sets it to
291 static void err_fns_check(void)
295 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
297 err_fns = &err_defaults;
298 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
301 /* API functions to get or set the underlying ERR functions. */
303 const ERR_FNS *ERR_get_implementation(void)
309 int ERR_set_implementation(const ERR_FNS *fns)
313 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
314 /* It's too late if 'err_fns' is non-NULL. BTW: not much point setting
315 * an error is there?! */
321 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
325 /* These are the callbacks provided to "lh_new()" when creating the LHASH tables
326 * internal to the "err_defaults" implementation. */
328 static unsigned long get_error_values(int inc,int top,const char **file,int *line,
329 const char **data,int *flags);
331 /* The internal functions used in the "err_defaults" implementation */
333 static unsigned long err_string_data_hash(const ERR_STRING_DATA *a)
338 ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l);
339 return(ret^ret%19*13);
341 static IMPLEMENT_LHASH_HASH_FN(err_string_data, ERR_STRING_DATA)
343 static int err_string_data_cmp(const ERR_STRING_DATA *a,
344 const ERR_STRING_DATA *b)
346 return (int)(a->error - b->error);
348 static IMPLEMENT_LHASH_COMP_FN(err_string_data, ERR_STRING_DATA)
350 static LHASH_OF(ERR_STRING_DATA) *int_err_get(int create)
352 LHASH_OF(ERR_STRING_DATA) *ret = NULL;
354 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
355 if (!int_error_hash && create)
357 CRYPTO_push_info("int_err_get (err.c)");
358 int_error_hash = lh_ERR_STRING_DATA_new();
362 ret = int_error_hash;
363 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
368 static void int_err_del(void)
370 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
373 lh_ERR_STRING_DATA_free(int_error_hash);
374 int_error_hash = NULL;
376 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
379 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)
382 LHASH_OF(ERR_STRING_DATA) *hash;
385 hash = ERRFN(err_get)(0);
389 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
390 p = lh_ERR_STRING_DATA_retrieve(hash, d);
391 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
396 static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *d)
399 LHASH_OF(ERR_STRING_DATA) *hash;
402 hash = ERRFN(err_get)(1);
406 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
407 p = lh_ERR_STRING_DATA_insert(hash, d);
408 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
413 static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *d)
416 LHASH_OF(ERR_STRING_DATA) *hash;
419 hash = ERRFN(err_get)(0);
423 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
424 p = lh_ERR_STRING_DATA_delete(hash, d);
425 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
430 static unsigned long err_state_hash(const ERR_STATE *a)
432 return CRYPTO_THREADID_hash(&a->tid) * 13;
434 static IMPLEMENT_LHASH_HASH_FN(err_state, ERR_STATE)
436 static int err_state_cmp(const ERR_STATE *a, const ERR_STATE *b)
438 return CRYPTO_THREADID_cmp(&a->tid, &b->tid);
440 static IMPLEMENT_LHASH_COMP_FN(err_state, ERR_STATE)
442 static LHASH_OF(ERR_STATE) *int_thread_get(int create)
444 LHASH_OF(ERR_STATE) *ret = NULL;
446 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
447 if (!int_thread_hash && create)
449 CRYPTO_push_info("int_thread_get (err.c)");
450 int_thread_hash = lh_ERR_STATE_new();
455 int_thread_hash_references++;
456 ret = int_thread_hash;
458 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
462 static void int_thread_release(LHASH_OF(ERR_STATE) **hash)
466 if (hash == NULL || *hash == NULL)
469 i = CRYPTO_add(&int_thread_hash_references, -1, CRYPTO_LOCK_ERR);
472 fprintf(stderr,"%4d:%s\n",int_thread_hash_references,"ERR");
478 fprintf(stderr,"int_thread_release, bad reference count\n");
485 static ERR_STATE *int_thread_get_item(const ERR_STATE *d)
488 LHASH_OF(ERR_STATE) *hash;
491 hash = ERRFN(thread_get)(0);
495 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
496 p = lh_ERR_STATE_retrieve(hash, d);
497 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
499 ERRFN(thread_release)(&hash);
503 static ERR_STATE *int_thread_set_item(ERR_STATE *d)
506 LHASH_OF(ERR_STATE) *hash;
509 hash = ERRFN(thread_get)(1);
513 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
514 p = lh_ERR_STATE_insert(hash, d);
515 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
517 ERRFN(thread_release)(&hash);
521 static void int_thread_del_item(const ERR_STATE *d)
524 LHASH_OF(ERR_STATE) *hash;
527 hash = ERRFN(thread_get)(0);
531 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
532 p = lh_ERR_STATE_delete(hash, d);
533 /* make sure we don't leak memory */
534 if (int_thread_hash_references == 1
535 && int_thread_hash && lh_ERR_STATE_num_items(int_thread_hash) == 0)
537 lh_ERR_STATE_free(int_thread_hash);
538 int_thread_hash = NULL;
540 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
542 ERRFN(thread_release)(&hash);
547 static int int_err_get_next_lib(void)
551 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
552 ret = int_err_library_number++;
553 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
559 #ifndef OPENSSL_NO_ERR
560 #define NUM_SYS_STR_REASONS 127
561 #define LEN_SYS_STR_REASON 32
563 static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];
564 /* SYS_str_reasons is filled with copies of strerror() results at
566 * 'errno' values up to 127 should cover all usual errors,
567 * others will be displayed numerically by ERR_error_string.
568 * It is crucial that we have something for each reason code
569 * that occurs in ERR_str_reasons, or bogus reason strings
570 * will be returned for SYSerr(), which always gets an errno
571 * value and never one of those 'standard' reason codes. */
573 static void build_SYS_str_reasons(void)
575 /* OPENSSL_malloc cannot be used here, use static storage instead */
576 static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON];
580 CRYPTO_r_lock(CRYPTO_LOCK_ERR);
583 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
587 CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
588 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
591 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
595 for (i = 1; i <= NUM_SYS_STR_REASONS; i++)
597 ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
599 str->error = (unsigned long)i;
600 if (str->string == NULL)
602 char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]);
603 char *src = strerror(i);
606 strncpy(*dest, src, sizeof *dest);
607 (*dest)[sizeof *dest - 1] = '\0';
611 if (str->string == NULL)
612 str->string = "unknown";
615 /* Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL},
616 * as required by ERR_load_strings. */
620 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
624 #define err_clear_data(p,i) \
626 if (((p)->err_data[i] != NULL) && \
627 (p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
629 OPENSSL_free((p)->err_data[i]); \
630 (p)->err_data[i]=NULL; \
632 (p)->err_data_flags[i]=0; \
635 #define err_clear(p,i) \
637 (p)->err_flags[i]=0; \
638 (p)->err_buffer[i]=0; \
639 err_clear_data(p,i); \
640 (p)->err_file[i]=NULL; \
641 (p)->err_line[i]= -1; \
644 static void ERR_STATE_free(ERR_STATE *s)
651 for (i=0; i<ERR_NUM_ERRORS; 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)
675 str->error|=ERR_PACK(lib,0,0);
676 ERRFN(err_set_item)(str);
681 void ERR_load_strings(int lib, ERR_STRING_DATA *str)
683 ERR_load_ERR_strings();
684 err_load_strings(lib, str);
687 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,
712 /* In the BS2000-OSD POSIX subsystem, the compiler generates
713 * path names in the form "*POSIX(/etc/passwd)".
714 * This dirty hack strips them to something sensible.
715 * @@@ We shouldn't modify a const string, though.
717 if (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {
720 /* Skip the "*POSIX(" prefix */
721 file += sizeof("*POSIX(")-1;
722 end = &file[strlen(file)-1];
725 /* Optional: use the basename of the path only. */
726 if ((end = strrchr(file, '/')) != NULL)
732 es->top=(es->top+1)%ERR_NUM_ERRORS;
733 if (es->top == es->bottom)
734 es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
735 es->err_flags[es->top]=0;
736 es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
737 es->err_file[es->top]=file;
738 es->err_line[es->top]=line;
739 err_clear_data(es,es->top);
742 void ERR_clear_error(void)
749 for (i=0; i<ERR_NUM_ERRORS; i++)
753 es->top=es->bottom=0;
757 unsigned long ERR_get_error(void)
758 { return(get_error_values(1,0,NULL,NULL,NULL,NULL)); }
760 unsigned long ERR_get_error_line(const char **file,
762 { 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)
766 { return(get_error_values(1,0,file,line,data,flags)); }
769 unsigned long ERR_peek_error(void)
770 { return(get_error_values(0,0,NULL,NULL,NULL,NULL)); }
772 unsigned long ERR_peek_error_line(const char **file, int *line)
773 { return(get_error_values(0,0,file,line,NULL,NULL)); }
775 unsigned long ERR_peek_error_line_data(const char **file, int *line,
776 const char **data, int *flags)
777 { return(get_error_values(0,0,file,line,data,flags)); }
780 unsigned long ERR_peek_last_error(void)
781 { return(get_error_values(0,1,NULL,NULL,NULL,NULL)); }
783 unsigned long ERR_peek_last_error_line(const char **file, int *line)
784 { return(get_error_values(0,1,file,line,NULL,NULL)); }
786 unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
787 const char **data, int *flags)
788 { return(get_error_values(0,1,file,line,data,flags)); }
791 static unsigned long get_error_values(int inc, int top, const char **file, int *line,
792 const char **data, int *flags)
802 if (file) *file = "";
804 if (data) *data = "";
805 if (flags) *flags = 0;
807 return ERR_R_INTERNAL_ERROR;
810 if (es->bottom == es->top) return 0;
812 i=es->top; /* last error */
814 i=(es->bottom+1)%ERR_NUM_ERRORS; /* first error */
816 ret=es->err_buffer[i];
823 if ((file != NULL) && (line != NULL))
825 if (es->err_file[i] == NULL)
828 if (line != NULL) *line=0;
832 *file=es->err_file[i];
833 if (line != NULL) *line=es->err_line[i];
841 err_clear_data(es, i);
846 if (es->err_data[i] == NULL)
849 if (flags != NULL) *flags=0;
853 *data=es->err_data[i];
854 if (flags != NULL) *flags=es->err_data_flags[i];
860 void ERR_error_string_n(unsigned long e, char *buf, size_t len)
862 char lsbuf[64], fsbuf[64], rsbuf[64];
863 const char *ls,*fs,*rs;
870 ls=ERR_lib_error_string(e);
871 fs=ERR_func_error_string(e);
872 rs=ERR_reason_error_string(e);
875 BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
877 BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
879 BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
881 BIO_snprintf(buf, len,"error:%08lX:%s:%s:%s", e, ls?ls:lsbuf,
882 fs?fs:fsbuf, rs?rs:rsbuf);
883 if (strlen(buf) == len-1)
885 /* output may be truncated; make sure we always have 5
886 * colon-separated fields, i.e. 4 colons ... */
888 if (len > NUM_COLONS) /* ... if possible */
893 for (i = 0; i < NUM_COLONS; i++)
895 char *colon = strchr(s, ':');
896 if (colon == NULL || colon > &buf[len-1] - NUM_COLONS + i)
898 /* set colon no. i at last possible position
899 * (buf[len-1] is the terminating 0)*/
900 colon = &buf[len-1] - NUM_COLONS + i;
909 /* BAD for multi-threading: uses a local buffer if ret == NULL */
910 /* ERR_error_string_n should be used instead for ret != NULL
911 * as ERR_error_string cannot know how large the buffer is */
912 char *ERR_error_string(unsigned long e, char *ret)
914 static char buf[256];
916 if (ret == NULL) ret=buf;
917 ERR_error_string_n(e, ret, 256);
922 LHASH_OF(ERR_STRING_DATA) *ERR_get_string_table(void)
925 return ERRFN(err_get)(0);
928 LHASH_OF(ERR_STATE) *ERR_get_err_state_table(void)
931 return ERRFN(thread_get)(0);
934 void ERR_release_err_state_table(LHASH_OF(ERR_STATE) **hash)
937 ERRFN(thread_release)(hash);
940 const char *ERR_lib_error_string(unsigned long e)
942 ERR_STRING_DATA d,*p;
947 d.error=ERR_PACK(l,0,0);
948 p=ERRFN(err_get_item)(&d);
949 return((p == NULL)?NULL:p->string);
952 const char *ERR_func_error_string(unsigned long e)
954 ERR_STRING_DATA d,*p;
960 d.error=ERR_PACK(l,f,0);
961 p=ERRFN(err_get_item)(&d);
962 return((p == NULL)?NULL:p->string);
965 const char *ERR_reason_error_string(unsigned long e)
967 ERR_STRING_DATA d,*p=NULL;
973 d.error=ERR_PACK(l,0,r);
974 p=ERRFN(err_get_item)(&d);
977 d.error=ERR_PACK(0,0,r);
978 p=ERRFN(err_get_item)(&d);
980 return((p == NULL)?NULL:p->string);
983 void ERR_remove_thread_state(const CRYPTO_THREADID *id)
988 CRYPTO_THREADID_cpy(&tmp.tid, id);
990 CRYPTO_THREADID_current(&tmp.tid);
992 /* thread_del_item automatically destroys the LHASH if the number of
993 * items reaches zero. */
994 ERRFN(thread_del_item)(&tmp);
997 #ifndef OPENSSL_NO_DEPRECATED
998 void ERR_remove_state(unsigned long pid)
1000 ERR_remove_thread_state(NULL);
1004 ERR_STATE *ERR_get_state(void)
1006 static ERR_STATE fallback;
1007 ERR_STATE *ret,tmp,*tmpp=NULL;
1009 CRYPTO_THREADID tid;
1012 CRYPTO_THREADID_current(&tid);
1013 CRYPTO_THREADID_cpy(&tmp.tid, &tid);
1014 ret=ERRFN(thread_get_item)(&tmp);
1016 /* ret == the error state, if NULL, make a new one */
1019 ret=(ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE));
1020 if (ret == NULL) return(&fallback);
1021 CRYPTO_THREADID_cpy(&ret->tid, &tid);
1024 for (i=0; i<ERR_NUM_ERRORS; i++)
1026 ret->err_data[i]=NULL;
1027 ret->err_data_flags[i]=0;
1029 tmpp = ERRFN(thread_set_item)(ret);
1030 /* To check if insertion failed, do a get. */
1031 if (ERRFN(thread_get_item)(ret) != ret)
1033 ERR_STATE_free(ret); /* could not insert it */
1036 /* If a race occured in this function and we came second, tmpp
1037 * is the first one that we just replaced. */
1039 ERR_STATE_free(tmpp);
1044 int ERR_get_next_error_library(void)
1047 return ERRFN(get_next_lib)();
1050 void ERR_set_error_data(char *data, int flags)
1061 err_clear_data(es,i);
1062 es->err_data[i]=data;
1063 es->err_data_flags[i]=flags;
1066 void ERR_add_error_data(int num, ...)
1069 va_start(args, num);
1070 ERR_add_error_vdata(num, args);
1074 void ERR_add_error_vdata(int num, va_list args)
1080 str=OPENSSL_malloc(s+1);
1081 if (str == NULL) return;
1085 for (i=0; i<num; i++)
1087 a=va_arg(args, char*);
1088 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
1095 p=OPENSSL_realloc(str,s+1);
1104 BUF_strlcat(str,a,(size_t)s+1);
1107 ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING);
1110 int ERR_set_mark(void)
1116 if (es->bottom == es->top) return 0;
1117 es->err_flags[es->top]|=ERR_FLAG_MARK;
1121 int ERR_pop_to_mark(void)
1127 while(es->bottom != es->top
1128 && (es->err_flags[es->top] & ERR_FLAG_MARK) == 0)
1130 err_clear(es,es->top);
1132 if (es->top == -1) es->top=ERR_NUM_ERRORS-1;
1135 if (es->bottom == es->top) return 0;
1136 es->err_flags[es->top]&=~ERR_FLAG_MARK;