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).
112 #define OPENSSL_NO_FIPS_ERR
117 #include "cryptlib.h"
118 #include <openssl/lhash.h>
119 #include <openssl/crypto.h>
120 #include <openssl/buffer.h>
121 #include <openssl/bio.h>
122 #include <openssl/err.h>
124 DECLARE_LHASH_OF(ERR_STRING_DATA);
125 DECLARE_LHASH_OF(ERR_STATE);
127 static void err_load_strings(int lib, ERR_STRING_DATA *str);
129 static void ERR_STATE_free(ERR_STATE *s);
130 #ifndef OPENSSL_NO_ERR
131 static ERR_STRING_DATA ERR_str_libraries[]=
133 {ERR_PACK(ERR_LIB_NONE,0,0) ,"unknown library"},
134 {ERR_PACK(ERR_LIB_SYS,0,0) ,"system library"},
135 {ERR_PACK(ERR_LIB_BN,0,0) ,"bignum routines"},
136 {ERR_PACK(ERR_LIB_RSA,0,0) ,"rsa routines"},
137 {ERR_PACK(ERR_LIB_DH,0,0) ,"Diffie-Hellman routines"},
138 {ERR_PACK(ERR_LIB_EVP,0,0) ,"digital envelope routines"},
139 {ERR_PACK(ERR_LIB_BUF,0,0) ,"memory buffer routines"},
140 {ERR_PACK(ERR_LIB_OBJ,0,0) ,"object identifier routines"},
141 {ERR_PACK(ERR_LIB_PEM,0,0) ,"PEM routines"},
142 {ERR_PACK(ERR_LIB_DSA,0,0) ,"dsa routines"},
143 {ERR_PACK(ERR_LIB_X509,0,0) ,"x509 certificate routines"},
144 {ERR_PACK(ERR_LIB_ASN1,0,0) ,"asn1 encoding routines"},
145 {ERR_PACK(ERR_LIB_CONF,0,0) ,"configuration file routines"},
146 {ERR_PACK(ERR_LIB_CRYPTO,0,0) ,"common libcrypto routines"},
147 {ERR_PACK(ERR_LIB_EC,0,0) ,"elliptic curve routines"},
148 {ERR_PACK(ERR_LIB_ECDSA,0,0) ,"ECDSA routines"},
149 {ERR_PACK(ERR_LIB_ECDH,0,0) ,"ECDH routines"},
150 {ERR_PACK(ERR_LIB_SSL,0,0) ,"SSL routines"},
151 {ERR_PACK(ERR_LIB_BIO,0,0) ,"BIO routines"},
152 {ERR_PACK(ERR_LIB_PKCS7,0,0) ,"PKCS7 routines"},
153 {ERR_PACK(ERR_LIB_X509V3,0,0) ,"X509 V3 routines"},
154 {ERR_PACK(ERR_LIB_PKCS12,0,0) ,"PKCS12 routines"},
155 {ERR_PACK(ERR_LIB_RAND,0,0) ,"random number generator"},
156 {ERR_PACK(ERR_LIB_DSO,0,0) ,"DSO support routines"},
157 {ERR_PACK(ERR_LIB_TS,0,0) ,"time stamp routines"},
158 {ERR_PACK(ERR_LIB_ENGINE,0,0) ,"engine routines"},
159 {ERR_PACK(ERR_LIB_OCSP,0,0) ,"OCSP routines"},
160 {ERR_PACK(ERR_LIB_FIPS,0,0) ,"FIPS routines"},
161 {ERR_PACK(ERR_LIB_CMS,0,0) ,"CMS routines"},
162 {ERR_PACK(ERR_LIB_HMAC,0,0) ,"HMAC routines"},
166 static ERR_STRING_DATA ERR_str_functs[]=
168 {ERR_PACK(0,SYS_F_FOPEN,0), "fopen"},
169 {ERR_PACK(0,SYS_F_CONNECT,0), "connect"},
170 {ERR_PACK(0,SYS_F_GETSERVBYNAME,0), "getservbyname"},
171 {ERR_PACK(0,SYS_F_SOCKET,0), "socket"},
172 {ERR_PACK(0,SYS_F_IOCTLSOCKET,0), "ioctlsocket"},
173 {ERR_PACK(0,SYS_F_BIND,0), "bind"},
174 {ERR_PACK(0,SYS_F_LISTEN,0), "listen"},
175 {ERR_PACK(0,SYS_F_ACCEPT,0), "accept"},
176 #ifdef OPENSSL_SYS_WINDOWS
177 {ERR_PACK(0,SYS_F_WSASTARTUP,0), "WSAstartup"},
179 {ERR_PACK(0,SYS_F_OPENDIR,0), "opendir"},
180 {ERR_PACK(0,SYS_F_FREAD,0), "fread"},
184 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 ,"called a function you should not call"},
222 {ERR_R_PASSED_NULL_PARAMETER ,"passed a null parameter"},
223 {ERR_R_INTERNAL_ERROR ,"internal error"},
224 {ERR_R_DISABLED ,"called a function that was disabled at compile-time"},
231 /* Define the predeclared (but externally opaque) "ERR_FNS" type */
234 /* Works on the "error_hash" string table */
235 LHASH_OF(ERR_STRING_DATA) *(*cb_err_get)(int create);
236 void (*cb_err_del)(void);
237 ERR_STRING_DATA *(*cb_err_get_item)(const ERR_STRING_DATA *);
238 ERR_STRING_DATA *(*cb_err_set_item)(ERR_STRING_DATA *);
239 ERR_STRING_DATA *(*cb_err_del_item)(ERR_STRING_DATA *);
240 /* Works on the "thread_hash" error-state table */
241 LHASH_OF(ERR_STATE) *(*cb_thread_get)(int create);
242 void (*cb_thread_release)(LHASH_OF(ERR_STATE) **hash);
243 ERR_STATE *(*cb_thread_get_item)(const ERR_STATE *);
244 ERR_STATE *(*cb_thread_set_item)(ERR_STATE *);
245 void (*cb_thread_del_item)(const ERR_STATE *);
246 /* Returns the next available error "library" numbers */
247 int (*cb_get_next_lib)(void);
250 /* Predeclarations of the "err_defaults" functions */
251 static LHASH_OF(ERR_STRING_DATA) *int_err_get(int create);
252 static void int_err_del(void);
253 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
254 static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *);
255 static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *);
256 static LHASH_OF(ERR_STATE) *int_thread_get(int create);
257 static void int_thread_release(LHASH_OF(ERR_STATE) **hash);
258 static ERR_STATE *int_thread_get_item(const ERR_STATE *);
259 static ERR_STATE *int_thread_set_item(ERR_STATE *);
260 static void int_thread_del_item(const ERR_STATE *);
261 static int int_err_get_next_lib(void);
262 /* The static ERR_FNS table using these defaults functions */
263 static const ERR_FNS err_defaults =
278 /* The replacable table of ERR_FNS functions we use at run-time */
279 static const ERR_FNS *err_fns = NULL;
281 /* Eg. rather than using "err_get()", use "ERRFN(err_get)()". */
282 #define ERRFN(a) err_fns->cb_##a
284 /* The internal state used by "err_defaults" - as such, the setting, reading,
285 * creating, and deleting of this data should only be permitted via the
286 * "err_defaults" functions. This way, a linked module can completely defer all
287 * ERR state operation (together with requisite locking) to the implementations
288 * and state in the loading application. */
289 static LHASH_OF(ERR_STRING_DATA) *int_error_hash = NULL;
290 static LHASH_OF(ERR_STATE) *int_thread_hash = NULL;
291 static int int_thread_hash_references = 0;
292 static int int_err_library_number= ERR_LIB_USER;
294 /* Internal function that checks whether "err_fns" is set and if not, sets it to
296 static void err_fns_check(void)
300 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
302 err_fns = &err_defaults;
303 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
306 /* API functions to get or set the underlying ERR functions. */
308 const ERR_FNS *ERR_get_implementation(void)
314 int ERR_set_implementation(const ERR_FNS *fns)
318 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
319 /* It's too late if 'err_fns' is non-NULL. BTW: not much point setting
320 * an error is there?! */
326 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
330 /* These are the callbacks provided to "lh_new()" when creating the LHASH tables
331 * internal to the "err_defaults" implementation. */
333 static unsigned long get_error_values(int inc,int top,const char **file,int *line,
334 const char **data,int *flags);
336 /* The internal functions used in the "err_defaults" implementation */
338 static unsigned long err_string_data_hash(const ERR_STRING_DATA *a)
343 ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l);
344 return(ret^ret%19*13);
346 static IMPLEMENT_LHASH_HASH_FN(err_string_data, ERR_STRING_DATA)
348 static int err_string_data_cmp(const ERR_STRING_DATA *a,
349 const ERR_STRING_DATA *b)
351 return (int)(a->error - b->error);
353 static IMPLEMENT_LHASH_COMP_FN(err_string_data, ERR_STRING_DATA)
355 static LHASH_OF(ERR_STRING_DATA) *int_err_get(int create)
357 LHASH_OF(ERR_STRING_DATA) *ret = NULL;
359 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
360 if (!int_error_hash && create)
362 CRYPTO_push_info("int_err_get (err.c)");
363 int_error_hash = lh_ERR_STRING_DATA_new();
367 ret = int_error_hash;
368 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
373 static void int_err_del(void)
375 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
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;
439 static IMPLEMENT_LHASH_HASH_FN(err_state, ERR_STATE)
441 static int err_state_cmp(const ERR_STATE *a, const ERR_STATE *b)
443 return CRYPTO_THREADID_cmp(&a->tid, &b->tid);
445 static IMPLEMENT_LHASH_COMP_FN(err_state, ERR_STATE)
447 static LHASH_OF(ERR_STATE) *int_thread_get(int create)
449 LHASH_OF(ERR_STATE) *ret = NULL;
451 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
452 if (!int_thread_hash && create)
454 CRYPTO_push_info("int_thread_get (err.c)");
455 int_thread_hash = lh_ERR_STATE_new();
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)
542 lh_ERR_STATE_free(int_thread_hash);
543 int_thread_hash = NULL;
545 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
547 ERRFN(thread_release)(&hash);
552 static int int_err_get_next_lib(void)
556 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
557 ret = int_err_library_number++;
558 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];
569 /* SYS_str_reasons is filled with copies of strerror() results at
571 * 'errno' values up to 127 should cover all usual errors,
572 * others will be displayed numerically by ERR_error_string.
573 * It is crucial that we have something for each reason code
574 * that occurs in ERR_str_reasons, or bogus reason strings
575 * will be returned for SYSerr(), which always gets an errno
576 * value and never one of those 'standard' reason codes. */
578 static void build_SYS_str_reasons(void)
580 /* OPENSSL_malloc cannot be used here, use static storage instead */
581 static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON];
585 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);
596 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
600 for (i = 1; i <= NUM_SYS_STR_REASONS; i++)
602 ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
604 str->error = (unsigned long)i;
605 if (str->string == NULL)
607 char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]);
608 char *src = strerror(i);
611 strncpy(*dest, src, sizeof *dest);
612 (*dest)[sizeof *dest - 1] = '\0';
616 if (str->string == NULL)
617 str->string = "unknown";
620 /* Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL},
621 * as required by ERR_load_strings. */
625 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
629 #define err_clear_data(p,i) \
631 if (((p)->err_data[i] != NULL) && \
632 (p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
634 OPENSSL_free((p)->err_data[i]); \
635 (p)->err_data[i]=NULL; \
637 (p)->err_data_flags[i]=0; \
640 #define err_clear(p,i) \
642 (p)->err_flags[i]=0; \
643 (p)->err_buffer[i]=0; \
644 err_clear_data(p,i); \
645 (p)->err_file[i]=NULL; \
646 (p)->err_line[i]= -1; \
649 static void ERR_STATE_free(ERR_STATE *s)
656 for (i=0; i<ERR_NUM_ERRORS; i++)
663 void ERR_load_ERR_strings(void)
666 #ifndef OPENSSL_NO_ERR
667 err_load_strings(0,ERR_str_libraries);
668 err_load_strings(0,ERR_str_reasons);
669 err_load_strings(ERR_LIB_SYS,ERR_str_functs);
670 build_SYS_str_reasons();
671 err_load_strings(ERR_LIB_SYS,SYS_str_reasons);
675 static void err_load_strings(int lib, ERR_STRING_DATA *str)
680 str->error|=ERR_PACK(lib,0,0);
681 ERRFN(err_set_item)(str);
686 void ERR_load_strings(int lib, ERR_STRING_DATA *str)
688 ERR_load_ERR_strings();
689 err_load_strings(lib, str);
692 void ERR_unload_strings(int lib, ERR_STRING_DATA *str)
697 str->error|=ERR_PACK(lib,0,0);
698 ERRFN(err_del_item)(str);
703 void ERR_free_strings(void)
709 /********************************************************/
711 void ERR_put_error(int lib, int func, int reason, const char *file,
717 /* In the BS2000-OSD POSIX subsystem, the compiler generates
718 * path names in the form "*POSIX(/etc/passwd)".
719 * This dirty hack strips them to something sensible.
720 * @@@ We shouldn't modify a const string, though.
722 if (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {
725 /* Skip the "*POSIX(" prefix */
726 file += sizeof("*POSIX(")-1;
727 end = &file[strlen(file)-1];
730 /* Optional: use the basename of the path only. */
731 if ((end = strrchr(file, '/')) != NULL)
737 es->top=(es->top+1)%ERR_NUM_ERRORS;
738 if (es->top == es->bottom)
739 es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
740 es->err_flags[es->top]=0;
741 es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
742 es->err_file[es->top]=file;
743 es->err_line[es->top]=line;
744 err_clear_data(es,es->top);
747 void ERR_clear_error(void)
754 for (i=0; i<ERR_NUM_ERRORS; i++)
758 es->top=es->bottom=0;
762 unsigned long ERR_get_error(void)
763 { return(get_error_values(1,0,NULL,NULL,NULL,NULL)); }
765 unsigned long ERR_get_error_line(const char **file,
767 { return(get_error_values(1,0,file,line,NULL,NULL)); }
769 unsigned long ERR_get_error_line_data(const char **file, int *line,
770 const char **data, int *flags)
771 { return(get_error_values(1,0,file,line,data,flags)); }
774 unsigned long ERR_peek_error(void)
775 { return(get_error_values(0,0,NULL,NULL,NULL,NULL)); }
777 unsigned long ERR_peek_error_line(const char **file, int *line)
778 { 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)
782 { return(get_error_values(0,0,file,line,data,flags)); }
785 unsigned long ERR_peek_last_error(void)
786 { return(get_error_values(0,1,NULL,NULL,NULL,NULL)); }
788 unsigned long ERR_peek_last_error_line(const char **file, int *line)
789 { return(get_error_values(0,1,file,line,NULL,NULL)); }
791 unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
792 const char **data, int *flags)
793 { return(get_error_values(0,1,file,line,data,flags)); }
796 static unsigned long get_error_values(int inc, int top, const char **file, int *line,
797 const char **data, int *flags)
807 if (file) *file = "";
809 if (data) *data = "";
810 if (flags) *flags = 0;
812 return ERR_R_INTERNAL_ERROR;
815 if (es->bottom == es->top) return 0;
817 i=es->top; /* last error */
819 i=(es->bottom+1)%ERR_NUM_ERRORS; /* first error */
821 ret=es->err_buffer[i];
828 if ((file != NULL) && (line != NULL))
830 if (es->err_file[i] == NULL)
833 if (line != NULL) *line=0;
837 *file=es->err_file[i];
838 if (line != NULL) *line=es->err_line[i];
846 err_clear_data(es, i);
851 if (es->err_data[i] == NULL)
854 if (flags != NULL) *flags=0;
858 *data=es->err_data[i];
859 if (flags != NULL) *flags=es->err_data_flags[i];
865 void ERR_error_string_n(unsigned long e, char *buf, size_t len)
867 char lsbuf[64], fsbuf[64], rsbuf[64];
868 const char *ls,*fs,*rs;
875 ls=ERR_lib_error_string(e);
876 fs=ERR_func_error_string(e);
877 rs=ERR_reason_error_string(e);
880 BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
882 BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
884 BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
886 BIO_snprintf(buf, len,"error:%08lX:%s:%s:%s", e, ls?ls:lsbuf,
887 fs?fs:fsbuf, rs?rs:rsbuf);
888 if (strlen(buf) == len-1)
890 /* output may be truncated; make sure we always have 5
891 * colon-separated fields, i.e. 4 colons ... */
893 if (len > NUM_COLONS) /* ... if possible */
898 for (i = 0; i < NUM_COLONS; i++)
900 char *colon = strchr(s, ':');
901 if (colon == NULL || colon > &buf[len-1] - NUM_COLONS + i)
903 /* set colon no. i at last possible position
904 * (buf[len-1] is the terminating 0)*/
905 colon = &buf[len-1] - NUM_COLONS + i;
914 /* BAD for multi-threading: uses a local buffer if ret == NULL */
915 /* ERR_error_string_n should be used instead for ret != NULL
916 * as ERR_error_string cannot know how large the buffer is */
917 char *ERR_error_string(unsigned long e, char *ret)
919 static char buf[256];
921 if (ret == NULL) ret=buf;
922 ERR_error_string_n(e, ret, 256);
927 LHASH_OF(ERR_STRING_DATA) *ERR_get_string_table(void)
930 return ERRFN(err_get)(0);
933 LHASH_OF(ERR_STATE) *ERR_get_err_state_table(void)
936 return ERRFN(thread_get)(0);
939 void ERR_release_err_state_table(LHASH_OF(ERR_STATE) **hash)
942 ERRFN(thread_release)(hash);
945 const char *ERR_lib_error_string(unsigned long e)
947 ERR_STRING_DATA d,*p;
952 d.error=ERR_PACK(l,0,0);
953 p=ERRFN(err_get_item)(&d);
954 return((p == NULL)?NULL:p->string);
957 const char *ERR_func_error_string(unsigned long e)
959 ERR_STRING_DATA d,*p;
965 d.error=ERR_PACK(l,f,0);
966 p=ERRFN(err_get_item)(&d);
967 return((p == NULL)?NULL:p->string);
970 const char *ERR_reason_error_string(unsigned long e)
972 ERR_STRING_DATA d,*p=NULL;
978 d.error=ERR_PACK(l,0,r);
979 p=ERRFN(err_get_item)(&d);
982 d.error=ERR_PACK(0,0,r);
983 p=ERRFN(err_get_item)(&d);
985 return((p == NULL)?NULL:p->string);
988 void ERR_remove_thread_state(const CRYPTO_THREADID *id)
993 CRYPTO_THREADID_cpy(&tmp.tid, id);
995 CRYPTO_THREADID_current(&tmp.tid);
997 /* thread_del_item automatically destroys the LHASH if the number of
998 * items reaches zero. */
999 ERRFN(thread_del_item)(&tmp);
1002 #ifndef OPENSSL_NO_DEPRECATED
1003 void ERR_remove_state(unsigned long pid)
1005 ERR_remove_thread_state(NULL);
1009 ERR_STATE *ERR_get_state(void)
1011 static ERR_STATE fallback;
1012 ERR_STATE *ret,tmp,*tmpp=NULL;
1014 CRYPTO_THREADID tid;
1017 CRYPTO_THREADID_current(&tid);
1018 CRYPTO_THREADID_cpy(&tmp.tid, &tid);
1019 ret=ERRFN(thread_get_item)(&tmp);
1021 /* ret == the error state, if NULL, make a new one */
1024 ret=(ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE));
1025 if (ret == NULL) return(&fallback);
1026 CRYPTO_THREADID_cpy(&ret->tid, &tid);
1029 for (i=0; i<ERR_NUM_ERRORS; i++)
1031 ret->err_data[i]=NULL;
1032 ret->err_data_flags[i]=0;
1034 tmpp = ERRFN(thread_set_item)(ret);
1035 /* To check if insertion failed, do a get. */
1036 if (ERRFN(thread_get_item)(ret) != ret)
1038 ERR_STATE_free(ret); /* could not insert it */
1041 /* If a race occurred in this function and we came second, tmpp
1042 * is the first one that we just replaced. */
1044 ERR_STATE_free(tmpp);
1049 int ERR_get_next_error_library(void)
1052 return ERRFN(get_next_lib)();
1055 void ERR_set_error_data(char *data, int flags)
1066 err_clear_data(es,i);
1067 es->err_data[i]=data;
1068 es->err_data_flags[i]=flags;
1071 void ERR_add_error_data(int num, ...)
1074 va_start(args, num);
1075 ERR_add_error_vdata(num, args);
1079 void ERR_add_error_vdata(int num, va_list args)
1085 str=OPENSSL_malloc(s+1);
1086 if (str == NULL) return;
1090 for (i=0; i<num; i++)
1092 a=va_arg(args, char*);
1093 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
1100 p=OPENSSL_realloc(str,s+1);
1109 BUF_strlcat(str,a,(size_t)s+1);
1112 ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING);
1115 int ERR_set_mark(void)
1121 if (es->bottom == es->top) return 0;
1122 es->err_flags[es->top]|=ERR_FLAG_MARK;
1126 int ERR_pop_to_mark(void)
1132 while(es->bottom != es->top
1133 && (es->err_flags[es->top] & ERR_FLAG_MARK) == 0)
1135 err_clear(es,es->top);
1137 if (es->top == -1) es->top=ERR_NUM_ERRORS-1;
1140 if (es->bottom == es->top) return 0;
1141 es->err_flags[es->top]&=~ERR_FLAG_MARK;