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) 1998-2001 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 <openssl/lhash.h>
116 #include <openssl/crypto.h>
117 #include "cryptlib.h"
118 #include <openssl/buffer.h>
119 #include <openssl/bio.h>
120 #include <openssl/err.h>
122 static void err_load_strings(int lib
, ERR_STRING_DATA
*str
);
124 static void ERR_STATE_free(ERR_STATE
*s
);
125 #ifndef OPENSSL_NO_ERR
126 static ERR_STRING_DATA ERR_str_libraries
[]=
128 {ERR_PACK(ERR_LIB_NONE
,0,0) ,"unknown library"},
129 {ERR_PACK(ERR_LIB_SYS
,0,0) ,"system library"},
130 {ERR_PACK(ERR_LIB_BN
,0,0) ,"bignum routines"},
131 {ERR_PACK(ERR_LIB_RSA
,0,0) ,"rsa routines"},
132 {ERR_PACK(ERR_LIB_DH
,0,0) ,"Diffie-Hellman routines"},
133 {ERR_PACK(ERR_LIB_EVP
,0,0) ,"digital envelope routines"},
134 {ERR_PACK(ERR_LIB_BUF
,0,0) ,"memory buffer routines"},
135 {ERR_PACK(ERR_LIB_OBJ
,0,0) ,"object identifier routines"},
136 {ERR_PACK(ERR_LIB_PEM
,0,0) ,"PEM routines"},
137 {ERR_PACK(ERR_LIB_DSA
,0,0) ,"dsa routines"},
138 {ERR_PACK(ERR_LIB_X509
,0,0) ,"x509 certificate routines"},
139 {ERR_PACK(ERR_LIB_ASN1
,0,0) ,"asn1 encoding routines"},
140 {ERR_PACK(ERR_LIB_CONF
,0,0) ,"configuration file routines"},
141 {ERR_PACK(ERR_LIB_CRYPTO
,0,0) ,"common libcrypto routines"},
142 {ERR_PACK(ERR_LIB_EC
,0,0) ,"elliptic curve routines"},
143 {ERR_PACK(ERR_LIB_SSL
,0,0) ,"SSL routines"},
144 {ERR_PACK(ERR_LIB_BIO
,0,0) ,"BIO routines"},
145 {ERR_PACK(ERR_LIB_PKCS7
,0,0) ,"PKCS7 routines"},
146 {ERR_PACK(ERR_LIB_X509V3
,0,0) ,"X509 V3 routines"},
147 {ERR_PACK(ERR_LIB_PKCS12
,0,0) ,"PKCS12 routines"},
148 {ERR_PACK(ERR_LIB_RAND
,0,0) ,"random number generator"},
149 {ERR_PACK(ERR_LIB_DSO
,0,0) ,"DSO support routines"},
150 {ERR_PACK(ERR_LIB_ENGINE
,0,0) ,"engine routines"},
151 {ERR_PACK(ERR_LIB_OCSP
,0,0) ,"OCSP routines"},
155 static ERR_STRING_DATA ERR_str_functs
[]=
157 {ERR_PACK(0,SYS_F_FOPEN
,0), "fopen"},
158 {ERR_PACK(0,SYS_F_CONNECT
,0), "connect"},
159 {ERR_PACK(0,SYS_F_GETSERVBYNAME
,0), "getservbyname"},
160 {ERR_PACK(0,SYS_F_SOCKET
,0), "socket"},
161 {ERR_PACK(0,SYS_F_IOCTLSOCKET
,0), "ioctlsocket"},
162 {ERR_PACK(0,SYS_F_BIND
,0), "bind"},
163 {ERR_PACK(0,SYS_F_LISTEN
,0), "listen"},
164 {ERR_PACK(0,SYS_F_ACCEPT
,0), "accept"},
165 #ifdef OPENSSL_SYS_WINDOWS
166 {ERR_PACK(0,SYS_F_WSASTARTUP
,0), "WSAstartup"},
168 {ERR_PACK(0,SYS_F_OPENDIR
,0), "opendir"},
172 static ERR_STRING_DATA ERR_str_reasons
[]=
174 {ERR_R_SYS_LIB
,"system lib"},
175 {ERR_R_BN_LIB
,"BN lib"},
176 {ERR_R_RSA_LIB
,"RSA lib"},
177 {ERR_R_DH_LIB
,"DH lib"},
178 {ERR_R_EVP_LIB
,"EVP lib"},
179 {ERR_R_BUF_LIB
,"BUF lib"},
180 {ERR_R_OBJ_LIB
,"OBJ lib"},
181 {ERR_R_PEM_LIB
,"PEM lib"},
182 {ERR_R_DSA_LIB
,"DSA lib"},
183 {ERR_R_X509_LIB
,"X509 lib"},
184 {ERR_R_ASN1_LIB
,"ASN1 lib"},
185 {ERR_R_CONF_LIB
,"CONF lib"},
186 {ERR_R_CRYPTO_LIB
,"CRYPTO lib"},
187 {ERR_R_EC_LIB
,"EC lib"},
188 {ERR_R_SSL_LIB
,"SSL lib"},
189 {ERR_R_BIO_LIB
,"BIO lib"},
190 {ERR_R_PKCS7_LIB
,"PKCS7 lib"},
191 {ERR_R_X509V3_LIB
,"X509V3 lib"},
192 {ERR_R_PKCS12_LIB
,"PKCS12 lib"},
193 {ERR_R_RAND_LIB
,"RAND lib"},
194 {ERR_R_DSO_LIB
,"DSO lib"},
195 {ERR_R_ENGINE_LIB
,"ENGINE lib"},
196 {ERR_R_OCSP_LIB
,"OCSP lib"},
198 {ERR_R_NESTED_ASN1_ERROR
,"nested asn1 error"},
199 {ERR_R_BAD_ASN1_OBJECT_HEADER
,"bad asn1 object header"},
200 {ERR_R_BAD_GET_ASN1_OBJECT_CALL
,"bad get asn1 object call"},
201 {ERR_R_EXPECTING_AN_ASN1_SEQUENCE
,"expecting an asn1 sequence"},
202 {ERR_R_ASN1_LENGTH_MISMATCH
,"asn1 length mismatch"},
203 {ERR_R_MISSING_ASN1_EOS
,"missing asn1 eos"},
205 {ERR_R_FATAL
,"fatal"},
206 {ERR_R_MALLOC_FAILURE
,"malloc failure"},
207 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
,"called a function you should not call"},
208 {ERR_R_PASSED_NULL_PARAMETER
,"passed a null parameter"},
209 {ERR_R_INTERNAL_ERROR
,"internal error"},
215 /* Define the predeclared (but externally opaque) "ERR_FNS" type */
218 /* Works on the "error_hash" string table */
219 LHASH
*(*cb_err_get
)(int create
);
220 void (*cb_err_del
)(void);
221 ERR_STRING_DATA
*(*cb_err_get_item
)(const ERR_STRING_DATA
*);
222 ERR_STRING_DATA
*(*cb_err_set_item
)(ERR_STRING_DATA
*);
223 ERR_STRING_DATA
*(*cb_err_del_item
)(ERR_STRING_DATA
*);
224 /* Works on the "thread_hash" error-state table */
225 LHASH
*(*cb_thread_get
)(int create
);
226 ERR_STATE
*(*cb_thread_get_item
)(const ERR_STATE
*);
227 ERR_STATE
*(*cb_thread_set_item
)(ERR_STATE
*);
228 void (*cb_thread_del_item
)(const ERR_STATE
*);
229 /* Returns the next available error "library" numbers */
230 int (*cb_get_next_lib
)(void);
233 /* Predeclarations of the "err_defaults" functions */
234 static LHASH
*int_err_get(int create
);
235 static void int_err_del(void);
236 static ERR_STRING_DATA
*int_err_get_item(const ERR_STRING_DATA
*);
237 static ERR_STRING_DATA
*int_err_set_item(ERR_STRING_DATA
*);
238 static ERR_STRING_DATA
*int_err_del_item(ERR_STRING_DATA
*);
239 static LHASH
*int_thread_get(int create
);
240 static ERR_STATE
*int_thread_get_item(const ERR_STATE
*);
241 static ERR_STATE
*int_thread_set_item(ERR_STATE
*);
242 static void int_thread_del_item(const ERR_STATE
*);
243 static int int_err_get_next_lib(void);
244 /* The static ERR_FNS table using these defaults functions */
245 static const ERR_FNS err_defaults
=
259 /* The replacable table of ERR_FNS functions we use at run-time */
260 static const ERR_FNS
*err_fns
= NULL
;
262 /* Eg. rather than using "err_get()", use "ERRFN(err_get)()". */
263 #define ERRFN(a) err_fns->cb_##a
265 /* The internal state used by "err_defaults" - as such, the setting, reading,
266 * creating, and deleting of this data should only be permitted via the
267 * "err_defaults" functions. This way, a linked module can completely defer all
268 * ERR state operation (together with requisite locking) to the implementations
269 * and state in the loading application. */
270 static LHASH
*int_error_hash
= NULL
;
271 static LHASH
*int_thread_hash
= NULL
;
272 static int int_err_library_number
= ERR_LIB_USER
;
274 /* Internal function that checks whether "err_fns" is set and if not, sets it to
276 static void err_fns_check(void)
280 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
282 err_fns
= &err_defaults
;
283 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
286 /* API functions to get or set the underlying ERR functions. */
288 const ERR_FNS
*ERR_get_implementation(void)
294 int ERR_set_implementation(const ERR_FNS
*fns
)
298 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
299 /* It's too late if 'err_fns' is non-NULL. BTW: not much point setting
300 * an error is there?! */
306 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
310 /* These are the callbacks provided to "lh_new()" when creating the LHASH tables
311 * internal to the "err_defaults" implementation. */
313 /* static unsigned long err_hash(ERR_STRING_DATA *a); */
314 static unsigned long err_hash(const void *a_void
);
315 /* static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b); */
316 static int err_cmp(const void *a_void
, const void *b_void
);
317 /* static unsigned long pid_hash(ERR_STATE *pid); */
318 static unsigned long pid_hash(const void *pid_void
);
319 /* static int pid_cmp(ERR_STATE *a,ERR_STATE *pid); */
320 static int pid_cmp(const void *a_void
,const void *pid_void
);
321 static unsigned long get_error_values(int inc
,const char **file
,int *line
,
322 const char **data
,int *flags
);
324 /* The internal functions used in the "err_defaults" implementation */
326 static LHASH
*int_err_get(int create
)
330 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
331 if (!int_error_hash
&& create
)
333 CRYPTO_push_info("int_err_get (err.c)");
334 int_error_hash
= lh_new(err_hash
, err_cmp
);
338 ret
= int_error_hash
;
339 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
344 static void int_err_del(void)
346 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
349 lh_free(int_error_hash
);
350 int_error_hash
= NULL
;
352 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
355 static ERR_STRING_DATA
*int_err_get_item(const ERR_STRING_DATA
*d
)
361 hash
= ERRFN(err_get
)(0);
365 CRYPTO_r_lock(CRYPTO_LOCK_ERR
);
366 p
= (ERR_STRING_DATA
*)lh_retrieve(hash
, d
);
367 CRYPTO_r_unlock(CRYPTO_LOCK_ERR
);
372 static ERR_STRING_DATA
*int_err_set_item(ERR_STRING_DATA
*d
)
378 hash
= ERRFN(err_get
)(1);
382 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
383 p
= (ERR_STRING_DATA
*)lh_insert(hash
, d
);
384 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
389 static ERR_STRING_DATA
*int_err_del_item(ERR_STRING_DATA
*d
)
395 hash
= ERRFN(err_get
)(0);
399 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
400 p
= (ERR_STRING_DATA
*)lh_delete(hash
, d
);
401 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
406 static LHASH
*int_thread_get(int create
)
410 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
411 if (!int_thread_hash
&& create
)
413 CRYPTO_push_info("int_thread_get (err.c)");
414 int_thread_hash
= lh_new(pid_hash
, pid_cmp
);
418 ret
= int_thread_hash
;
419 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
423 static ERR_STATE
*int_thread_get_item(const ERR_STATE
*d
)
429 hash
= ERRFN(thread_get
)(0);
433 CRYPTO_r_lock(CRYPTO_LOCK_ERR
);
434 p
= (ERR_STATE
*)lh_retrieve(hash
, d
);
435 CRYPTO_r_unlock(CRYPTO_LOCK_ERR
);
440 static ERR_STATE
*int_thread_set_item(ERR_STATE
*d
)
446 hash
= ERRFN(thread_get
)(1);
450 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
451 p
= (ERR_STATE
*)lh_insert(hash
, d
);
452 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
457 static void int_thread_del_item(const ERR_STATE
*d
)
463 hash
= ERRFN(thread_get
)(0);
467 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
468 p
= (ERR_STATE
*)lh_delete(hash
, d
);
469 /* make sure we don't leak memory */
470 if (int_thread_hash
&& (lh_num_items(int_thread_hash
) == 0))
472 lh_free(int_thread_hash
);
473 int_thread_hash
= NULL
;
475 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
481 static int int_err_get_next_lib(void)
485 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
486 ret
= int_err_library_number
++;
487 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
493 #define NUM_SYS_STR_REASONS 127
494 #define LEN_SYS_STR_REASON 32
496 static ERR_STRING_DATA SYS_str_reasons
[NUM_SYS_STR_REASONS
+ 1];
497 /* SYS_str_reasons is filled with copies of strerror() results at
499 * 'errno' values up to 127 should cover all usual errors,
500 * others will be displayed numerically by ERR_error_string.
501 * It is crucial that we have something for each reason code
502 * that occurs in ERR_str_reasons, or bogus reason strings
503 * will be returned for SYSerr(), which always gets an errno
504 * value and never one of those 'standard' reason codes. */
506 static void build_SYS_str_reasons()
508 /* OPENSSL_malloc cannot be used here, use static storage instead */
509 static char strerror_tab
[NUM_SYS_STR_REASONS
][LEN_SYS_STR_REASON
];
515 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
517 for (i
= 1; i
<= NUM_SYS_STR_REASONS
; i
++)
519 ERR_STRING_DATA
*str
= &SYS_str_reasons
[i
- 1];
521 str
->error
= (unsigned long)i
;
522 if (str
->string
== NULL
)
524 char (*dest
)[LEN_SYS_STR_REASON
] = &(strerror_tab
[i
- 1]);
525 char *src
= strerror(i
);
528 strncpy(*dest
, src
, sizeof *dest
);
529 (*dest
)[sizeof *dest
- 1] = '\0';
533 if (str
->string
== NULL
)
534 str
->string
= "unknown";
537 /* Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL},
538 * as required by ERR_load_strings. */
542 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
546 #define err_clear_data(p,i) \
547 if (((p)->err_data[i] != NULL) && \
548 (p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
550 OPENSSL_free((p)->err_data[i]); \
551 (p)->err_data[i]=NULL; \
553 (p)->err_data_flags[i]=0;
555 static void ERR_STATE_free(ERR_STATE
*s
)
562 for (i
=0; i
<ERR_NUM_ERRORS
; i
++)
569 void ERR_load_ERR_strings(void)
572 #ifndef OPENSSL_NO_ERR
573 err_load_strings(0,ERR_str_libraries
);
574 err_load_strings(0,ERR_str_reasons
);
575 err_load_strings(ERR_LIB_SYS
,ERR_str_functs
);
576 build_SYS_str_reasons();
577 err_load_strings(ERR_LIB_SYS
,SYS_str_reasons
);
581 static void err_load_strings(int lib
, ERR_STRING_DATA
*str
)
585 str
->error
|=ERR_PACK(lib
,0,0);
586 ERRFN(err_set_item
)(str
);
591 void ERR_load_strings(int lib
, ERR_STRING_DATA
*str
)
593 ERR_load_ERR_strings();
594 err_load_strings(lib
, str
);
597 void ERR_unload_strings(int lib
, ERR_STRING_DATA
*str
)
601 str
->error
|=ERR_PACK(lib
,0,0);
602 ERRFN(err_del_item
)(str
);
607 void ERR_free_strings(void)
613 /********************************************************/
615 void ERR_put_error(int lib
, int func
, int reason
, const char *file
,
621 /* In the BS2000-OSD POSIX subsystem, the compiler generates
622 * path names in the form "*POSIX(/etc/passwd)".
623 * This dirty hack strips them to something sensible.
624 * @@@ We shouldn't modify a const string, though.
626 if (strncmp(file
,"*POSIX(", sizeof("*POSIX(")-1) == 0) {
629 /* Skip the "*POSIX(" prefix */
630 file
+= sizeof("*POSIX(")-1;
631 end
= &file
[strlen(file
)-1];
634 /* Optional: use the basename of the path only. */
635 if ((end
= strrchr(file
, '/')) != NULL
)
641 es
->top
=(es
->top
+1)%ERR_NUM_ERRORS
;
642 if (es
->top
== es
->bottom
)
643 es
->bottom
=(es
->bottom
+1)%ERR_NUM_ERRORS
;
644 es
->err_buffer
[es
->top
]=ERR_PACK(lib
,func
,reason
);
645 es
->err_file
[es
->top
]=file
;
646 es
->err_line
[es
->top
]=line
;
647 err_clear_data(es
,es
->top
);
650 void ERR_clear_error(void)
657 for (i
=0; i
<ERR_NUM_ERRORS
; i
++)
660 err_clear_data(es
,i
);
661 es
->err_file
[i
]=NULL
;
664 es
->top
=es
->bottom
=0;
668 unsigned long ERR_get_error(void)
669 { return(get_error_values(1,NULL
,NULL
,NULL
,NULL
)); }
671 unsigned long ERR_get_error_line(const char **file
,
673 { return(get_error_values(1,file
,line
,NULL
,NULL
)); }
675 unsigned long ERR_get_error_line_data(const char **file
, int *line
,
676 const char **data
, int *flags
)
677 { return(get_error_values(1,file
,line
,data
,flags
)); }
679 unsigned long ERR_peek_error(void)
680 { return(get_error_values(0,NULL
,NULL
,NULL
,NULL
)); }
682 unsigned long ERR_peek_error_line(const char **file
,
684 { return(get_error_values(0,file
,line
,NULL
,NULL
)); }
686 unsigned long ERR_peek_error_line_data(const char **file
, int *line
,
687 const char **data
, int *flags
)
688 { return(get_error_values(0,file
,line
,data
,flags
)); }
690 static unsigned long get_error_values(int inc
, const char **file
, int *line
,
691 const char **data
, int *flags
)
699 if (es
->bottom
== es
->top
) return 0;
700 i
=(es
->bottom
+1)%ERR_NUM_ERRORS
;
702 ret
=es
->err_buffer
[i
];
709 if ((file
!= NULL
) && (line
!= NULL
))
711 if (es
->err_file
[i
] == NULL
)
714 if (line
!= NULL
) *line
=0;
718 *file
=es
->err_file
[i
];
719 if (line
!= NULL
) *line
=es
->err_line
[i
];
727 err_clear_data(es
, i
);
732 if (es
->err_data
[i
] == NULL
)
735 if (flags
!= NULL
) *flags
=0;
739 *data
=es
->err_data
[i
];
740 if (flags
!= NULL
) *flags
=es
->err_data_flags
[i
];
746 void ERR_error_string_n(unsigned long e
, char *buf
, size_t len
)
748 char lsbuf
[64], fsbuf
[64], rsbuf
[64];
749 const char *ls
,*fs
,*rs
;
756 ls
=ERR_lib_error_string(e
);
757 fs
=ERR_func_error_string(e
);
758 rs
=ERR_reason_error_string(e
);
761 BIO_snprintf(lsbuf
, sizeof(lsbuf
), "lib(%lu)", l
);
763 BIO_snprintf(fsbuf
, sizeof(fsbuf
), "func(%lu)", f
);
765 BIO_snprintf(rsbuf
, sizeof(rsbuf
), "reason(%lu)", r
);
767 BIO_snprintf(buf
, len
,"error:%08lX:%s:%s:%s", e
, ls
?ls
:lsbuf
,
768 fs
?fs
:fsbuf
, rs
?rs
:rsbuf
);
769 if (strlen(buf
) == len
-1)
771 /* output may be truncated; make sure we always have 5
772 * colon-separated fields, i.e. 4 colons ... */
774 if (len
> NUM_COLONS
) /* ... if possible */
779 for (i
= 0; i
< NUM_COLONS
; i
++)
781 char *colon
= strchr(s
, ':');
782 if (colon
== NULL
|| colon
> &buf
[len
-1] - NUM_COLONS
+ i
)
784 /* set colon no. i at last possible position
785 * (buf[len-1] is the terminating 0)*/
786 colon
= &buf
[len
-1] - NUM_COLONS
+ i
;
795 /* BAD for multi-threading: uses a local buffer if ret == NULL */
796 /* ERR_error_string_n should be used instead for ret != NULL
797 * as ERR_error_string cannot know how large the buffer is */
798 char *ERR_error_string(unsigned long e
, char *ret
)
800 static char buf
[256];
802 if (ret
== NULL
) ret
=buf
;
803 ERR_error_string_n(e
, ret
, 256);
808 LHASH
*ERR_get_string_table(void)
811 return ERRFN(err_get
)(0);
814 LHASH
*ERR_get_err_state_table(void)
817 return ERRFN(thread_get
)(0);
820 const char *ERR_lib_error_string(unsigned long e
)
822 ERR_STRING_DATA d
,*p
;
827 d
.error
=ERR_PACK(l
,0,0);
828 p
=ERRFN(err_get_item
)(&d
);
829 return((p
== NULL
)?NULL
:p
->string
);
832 const char *ERR_func_error_string(unsigned long e
)
834 ERR_STRING_DATA d
,*p
;
840 d
.error
=ERR_PACK(l
,f
,0);
841 p
=ERRFN(err_get_item
)(&d
);
842 return((p
== NULL
)?NULL
:p
->string
);
845 const char *ERR_reason_error_string(unsigned long e
)
847 ERR_STRING_DATA d
,*p
=NULL
;
853 d
.error
=ERR_PACK(l
,0,r
);
854 p
=ERRFN(err_get_item
)(&d
);
857 d
.error
=ERR_PACK(0,0,r
);
858 p
=ERRFN(err_get_item
)(&d
);
860 return((p
== NULL
)?NULL
:p
->string
);
863 /* static unsigned long err_hash(ERR_STRING_DATA *a) */
864 static unsigned long err_hash(const void *a_void
)
868 l
=((ERR_STRING_DATA
*)a_void
)->error
;
869 ret
=l
^ERR_GET_LIB(l
)^ERR_GET_FUNC(l
);
870 return(ret
^ret
%19*13);
873 /* static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b) */
874 static int err_cmp(const void *a_void
, const void *b_void
)
876 return((int)(((ERR_STRING_DATA
*)a_void
)->error
-
877 ((ERR_STRING_DATA
*)b_void
)->error
));
880 /* static unsigned long pid_hash(ERR_STATE *a) */
881 static unsigned long pid_hash(const void *a_void
)
883 return(((ERR_STATE
*)a_void
)->pid
*13);
886 /* static int pid_cmp(ERR_STATE *a, ERR_STATE *b) */
887 static int pid_cmp(const void *a_void
, const void *b_void
)
889 return((int)((long)((ERR_STATE
*)a_void
)->pid
-
890 (long)((ERR_STATE
*)b_void
)->pid
));
893 void ERR_remove_state(unsigned long pid
)
899 pid
=(unsigned long)CRYPTO_thread_id();
901 /* thread_del_item automatically destroys the LHASH if the number of
902 * items reaches zero. */
903 ERRFN(thread_del_item
)(&tmp
);
906 ERR_STATE
*ERR_get_state(void)
908 static ERR_STATE fallback
;
909 ERR_STATE
*ret
,tmp
,*tmpp
=NULL
;
914 pid
=(unsigned long)CRYPTO_thread_id();
916 ret
=ERRFN(thread_get_item
)(&tmp
);
918 /* ret == the error state, if NULL, make a new one */
921 ret
=(ERR_STATE
*)OPENSSL_malloc(sizeof(ERR_STATE
));
922 if (ret
== NULL
) return(&fallback
);
926 for (i
=0; i
<ERR_NUM_ERRORS
; i
++)
928 ret
->err_data
[i
]=NULL
;
929 ret
->err_data_flags
[i
]=0;
931 tmpp
= ERRFN(thread_set_item
)(ret
);
932 /* To check if insertion failed, do a get. */
933 if (ERRFN(thread_get_item
)(ret
) != ret
)
935 ERR_STATE_free(ret
); /* could not insert it */
938 /* If a race occured in this function and we came second, tmpp
939 * is the first one that we just replaced. */
941 ERR_STATE_free(tmpp
);
946 int ERR_get_next_error_library(void)
949 return ERRFN(get_next_lib
)();
952 void ERR_set_error_data(char *data
, int flags
)
963 err_clear_data(es
,i
);
964 es
->err_data
[i
]=data
;
965 es
->err_data_flags
[i
]=flags
;
968 void ERR_add_error_data(int num
, ...)
975 str
=OPENSSL_malloc(s
+1);
976 if (str
== NULL
) return;
981 for (i
=0; i
<num
; i
++)
983 a
=va_arg(args
, char*);
984 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
991 p
=OPENSSL_realloc(str
,s
+1);
1003 ERR_set_error_data(str
,ERR_TXT_MALLOCED
|ERR_TXT_STRING
);