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.]
61 #include <openssl/lhash.h>
62 #include <openssl/crypto.h>
64 #include <openssl/buffer.h>
65 #include <openssl/err.h>
66 #include <openssl/crypto.h>
69 static LHASH
*error_hash
=NULL
;
70 static LHASH
*thread_hash
=NULL
;
72 static unsigned long err_hash(ERR_STRING_DATA
*a
);
73 static int err_cmp(ERR_STRING_DATA
*a
, ERR_STRING_DATA
*b
);
74 static unsigned long pid_hash(ERR_STATE
*pid
);
75 static int pid_cmp(ERR_STATE
*a
,ERR_STATE
*pid
);
76 static unsigned long get_error_values(int inc
,const char **file
,int *line
,
77 const char **data
,int *flags
);
78 static void ERR_STATE_free(ERR_STATE
*s
);
80 static ERR_STRING_DATA ERR_str_libraries
[]=
82 {ERR_PACK(ERR_LIB_NONE
,0,0) ,"unknown library"},
83 {ERR_PACK(ERR_LIB_SYS
,0,0) ,"system library"},
84 {ERR_PACK(ERR_LIB_BN
,0,0) ,"bignum routines"},
85 {ERR_PACK(ERR_LIB_RSA
,0,0) ,"rsa routines"},
86 {ERR_PACK(ERR_LIB_DH
,0,0) ,"Diffie-Hellman routines"},
87 {ERR_PACK(ERR_LIB_EVP
,0,0) ,"digital envelope routines"},
88 {ERR_PACK(ERR_LIB_BUF
,0,0) ,"memory buffer routines"},
89 {ERR_PACK(ERR_LIB_BIO
,0,0) ,"BIO routines"},
90 {ERR_PACK(ERR_LIB_OBJ
,0,0) ,"object identifier routines"},
91 {ERR_PACK(ERR_LIB_PEM
,0,0) ,"PEM routines"},
92 {ERR_PACK(ERR_LIB_ASN1
,0,0) ,"asn1 encoding routines"},
93 {ERR_PACK(ERR_LIB_X509
,0,0) ,"x509 certificate routines"},
94 {ERR_PACK(ERR_LIB_CONF
,0,0) ,"configuation file routines"},
95 {ERR_PACK(ERR_LIB_METH
,0,0) ,"X509 lookup 'method' routines"},
96 {ERR_PACK(ERR_LIB_SSL
,0,0) ,"SSL routines"},
97 {ERR_PACK(ERR_LIB_RSAREF
,0,0) ,"RSAref routines"},
98 {ERR_PACK(ERR_LIB_PROXY
,0,0) ,"Proxy routines"},
99 {ERR_PACK(ERR_LIB_BIO
,0,0) ,"BIO routines"},
100 {ERR_PACK(ERR_LIB_PKCS7
,0,0) ,"PKCS7 routines"},
101 {ERR_PACK(ERR_LIB_X509V3
,0,0) ,"X509 V3 routines"},
102 {ERR_PACK(ERR_LIB_PKCS12
,0,0) ,"PKCS12 routines"},
103 {ERR_PACK(ERR_LIB_RAND
,0,0) ,"random number generator"},
107 static ERR_STRING_DATA ERR_str_functs
[]=
109 {ERR_PACK(0,SYS_F_FOPEN
,0), "fopen"},
110 {ERR_PACK(0,SYS_F_CONNECT
,0), "connect"},
111 {ERR_PACK(0,SYS_F_GETSERVBYNAME
,0), "getservbyname"},
112 {ERR_PACK(0,SYS_F_SOCKET
,0), "socket"},
113 {ERR_PACK(0,SYS_F_IOCTLSOCKET
,0), "ioctlsocket"},
114 {ERR_PACK(0,SYS_F_BIND
,0), "bind"},
115 {ERR_PACK(0,SYS_F_LISTEN
,0), "listen"},
116 {ERR_PACK(0,SYS_F_ACCEPT
,0), "accept"},
118 {ERR_PACK(0,SYS_F_WSASTARTUP
,0), "WSAstartup"},
120 {ERR_PACK(0,SYS_F_OPENDIR
,0), "opendir"},
124 static ERR_STRING_DATA ERR_str_reasons
[]=
126 {ERR_R_FATAL
,"fatal"},
127 {ERR_R_SYS_LIB
,"system lib"},
128 {ERR_R_BN_LIB
,"BN lib"},
129 {ERR_R_RSA_LIB
,"RSA lib"},
130 {ERR_R_DH_LIB
,"DH lib"},
131 {ERR_R_EVP_LIB
,"EVP lib"},
132 {ERR_R_BUF_LIB
,"BUF lib"},
133 {ERR_R_BIO_LIB
,"BIO lib"},
134 {ERR_R_OBJ_LIB
,"OBJ lib"},
135 {ERR_R_PEM_LIB
,"PEM lib"},
136 {ERR_R_X509_LIB
,"X509 lib"},
137 {ERR_R_METH_LIB
,"METH lib"},
138 {ERR_R_ASN1_LIB
,"ASN1 lib"},
139 {ERR_R_CONF_LIB
,"CONF lib"},
140 {ERR_R_SSL_LIB
,"SSL lib"},
141 {ERR_R_PROXY_LIB
,"PROXY lib"},
142 {ERR_R_BIO_LIB
,"BIO lib"},
143 {ERR_R_PKCS7_LIB
,"PKCS7 lib"},
144 {ERR_R_PKCS12_LIB
,"PKCS12 lib"},
145 {ERR_R_MALLOC_FAILURE
,"Malloc failure"},
146 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
,"called a function you should not call"},
147 {ERR_R_PASSED_NULL_PARAMETER
,"passed a null parameter"},
148 {ERR_R_NESTED_ASN1_ERROR
,"nested asn1 error"},
149 {ERR_R_BAD_ASN1_OBJECT_HEADER
,"bad asn1 object header"},
150 {ERR_R_BAD_GET_ASN1_OBJECT_CALL
,"bad get asn1 object call"},
151 {ERR_R_EXPECTING_AN_ASN1_SEQUENCE
,"expecting an asn1 sequence"},
152 {ERR_R_ASN1_LENGTH_MISMATCH
,"asn1 length mismatch"},
153 {ERR_R_MISSING_ASN1_EOS
,"missing asn1 eos"},
159 #define err_clear_data(p,i) \
160 if (((p)->err_data[i] != NULL) && \
161 (p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
163 Free((p)->err_data[i]); \
164 (p)->err_data[i]=NULL; \
166 (p)->err_data_flags[i]=0;
168 static void ERR_STATE_free(ERR_STATE
*s
)
175 for (i
=0; i
<ERR_NUM_ERRORS
; i
++)
182 void ERR_load_ERR_strings(void)
188 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
191 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
195 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
198 ERR_load_strings(0,ERR_str_libraries
);
199 ERR_load_strings(0,ERR_str_reasons
);
200 ERR_load_strings(ERR_LIB_SYS
,ERR_str_functs
);
205 void ERR_load_strings(int lib
, ERR_STRING_DATA
*str
)
207 if (error_hash
== NULL
)
209 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH
);
210 error_hash
=lh_new(err_hash
,err_cmp
);
211 if (error_hash
== NULL
)
213 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH
);
216 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH
);
218 ERR_load_ERR_strings();
221 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH
);
224 str
->error
|=ERR_PACK(lib
,0,0);
225 lh_insert(error_hash
,(char *)str
);
228 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH
);
231 void ERR_free_strings(void)
233 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
235 if (error_hash
!= NULL
)
241 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
244 /********************************************************/
246 void ERR_put_error(int lib
, int func
, int reason
, const char *file
,
252 /* In the BS2000-OSD POSIX subsystem, the compiler generates
253 * path names in the form "*POSIX(/etc/passwd)".
254 * This dirty hack strips them to something sensible.
255 * @@@ We shouldn't modify a const string, though.
257 if (strncmp(file
,"*POSIX(", sizeof("*POSIX(")-1) == 0) {
260 /* Skip the "*POSIX(" prefix */
261 file
+= sizeof("*POSIX(")-1;
262 end
= &file
[strlen(file
)-1];
265 /* Optional: use the basename of the path only. */
266 if ((end
= strrchr(file
, '/')) != NULL
)
272 es
->top
=(es
->top
+1)%ERR_NUM_ERRORS
;
273 if (es
->top
== es
->bottom
)
274 es
->bottom
=(es
->bottom
+1)%ERR_NUM_ERRORS
;
275 es
->err_buffer
[es
->top
]=ERR_PACK(lib
,func
,reason
);
276 es
->err_file
[es
->top
]=file
;
277 es
->err_line
[es
->top
]=line
;
278 err_clear_data(es
,es
->top
);
281 void ERR_clear_error(void)
288 /* hmm... is this needed */
289 for (i
=0; i
<ERR_NUM_ERRORS
; i
++)
292 es
->err_file
[i
]=NULL
;
294 err_clear_data(es
,i
);
297 es
->top
=es
->bottom
=0;
301 unsigned long ERR_get_error(void)
302 { return(get_error_values(1,NULL
,NULL
,NULL
,NULL
)); }
304 unsigned long ERR_get_error_line(const char **file
,
306 { return(get_error_values(1,file
,line
,NULL
,NULL
)); }
308 unsigned long ERR_get_error_line_data(const char **file
, int *line
,
309 const char **data
, int *flags
)
310 { return(get_error_values(1,file
,line
,
313 unsigned long ERR_peek_error(void)
314 { return(get_error_values(0,NULL
,NULL
,NULL
,NULL
)); }
316 unsigned long ERR_peek_error_line(const char **file
,
318 { return(get_error_values(0,file
,line
,NULL
,NULL
)); }
320 unsigned long ERR_peek_error_line_data(const char **file
, int *line
,
321 const char **data
, int *flags
)
322 { return(get_error_values(0,file
,line
,
325 static unsigned long get_error_values(int inc
, const char **file
, int *line
,
326 const char **data
, int *flags
)
334 if (es
->bottom
== es
->top
) return(0);
335 i
=(es
->bottom
+1)%ERR_NUM_ERRORS
;
337 ret
=es
->err_buffer
[i
];
344 if ((file
!= NULL
) && (line
!= NULL
))
346 if (es
->err_file
[i
] == NULL
)
349 if (line
!= NULL
) *line
=0;
353 *file
=es
->err_file
[i
];
354 if (line
!= NULL
) *line
=es
->err_line
[i
];
360 if (es
->err_data
[i
] == NULL
)
363 if (flags
!= NULL
) *flags
=0;
367 *data
=es
->err_data
[i
];
368 if (flags
!= NULL
) *flags
=es
->err_data_flags
[i
];
374 /* BAD for multi-threaded, uses a local buffer if ret == NULL */
375 char *ERR_error_string(unsigned long e
, char *ret
)
377 static char buf
[256];
378 const char *ls
,*fs
,*rs
;
386 ls
=ERR_lib_error_string(e
);
387 fs
=ERR_func_error_string(e
);
388 rs
=ERR_reason_error_string(e
);
390 if (ret
== NULL
) ret
=buf
;
392 sprintf(&(ret
[0]),"error:%08lX:",e
);
395 sprintf(&(ret
[i
]),":lib(%lu) ",l
);
396 else sprintf(&(ret
[i
]),"%s",ls
);
399 sprintf(&(ret
[i
]),":func(%lu) ",f
);
400 else sprintf(&(ret
[i
]),":%s",fs
);
403 sprintf(&(ret
[i
]),":reason(%lu)",r
);
404 else sprintf(&(ret
[i
]),":%s",rs
);
409 LHASH
*ERR_get_string_table(void)
414 LHASH
*ERR_get_err_state_table(void)
419 const char *ERR_lib_error_string(unsigned long e
)
421 ERR_STRING_DATA d
,*p
=NULL
;
426 CRYPTO_r_lock(CRYPTO_LOCK_ERR_HASH
);
428 if (error_hash
!= NULL
)
430 d
.error
=ERR_PACK(l
,0,0);
431 p
=(ERR_STRING_DATA
*)lh_retrieve(error_hash
,(char *)&d
);
434 CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH
);
436 return((p
== NULL
)?NULL
:p
->string
);
439 const char *ERR_func_error_string(unsigned long e
)
441 ERR_STRING_DATA d
,*p
=NULL
;
447 CRYPTO_r_lock(CRYPTO_LOCK_ERR_HASH
);
449 if (error_hash
!= NULL
)
451 d
.error
=ERR_PACK(l
,f
,0);
452 p
=(ERR_STRING_DATA
*)lh_retrieve(error_hash
,(char *)&d
);
455 CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH
);
457 return((p
== NULL
)?NULL
:p
->string
);
460 const char *ERR_reason_error_string(unsigned long e
)
462 ERR_STRING_DATA d
,*p
=NULL
;
468 CRYPTO_r_lock(CRYPTO_LOCK_ERR_HASH
);
470 if (error_hash
!= NULL
)
472 d
.error
=ERR_PACK(l
,0,r
);
473 p
=(ERR_STRING_DATA
*)lh_retrieve(error_hash
,(char *)&d
);
476 d
.error
=ERR_PACK(0,0,r
);
477 p
=(ERR_STRING_DATA
*)lh_retrieve(error_hash
,
482 CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH
);
484 return((p
== NULL
)?NULL
:p
->string
);
487 static unsigned long err_hash(ERR_STRING_DATA
*a
)
492 ret
=l
^ERR_GET_LIB(l
)^ERR_GET_FUNC(l
);
493 return(ret
^ret
%19*13);
496 static int err_cmp(ERR_STRING_DATA
*a
, ERR_STRING_DATA
*b
)
498 return((int)(a
->error
-b
->error
));
501 static unsigned long pid_hash(ERR_STATE
*a
)
506 static int pid_cmp(ERR_STATE
*a
, ERR_STATE
*b
)
508 return((int)((long)a
->pid
- (long)b
->pid
));
511 void ERR_remove_state(unsigned long pid
)
515 if (thread_hash
== NULL
)
518 pid
=(unsigned long)CRYPTO_thread_id();
520 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
521 p
=(ERR_STATE
*)lh_delete(thread_hash
,(char *)&tmp
);
522 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
524 if (p
!= NULL
) ERR_STATE_free(p
);
527 ERR_STATE
*ERR_get_state(void)
529 static ERR_STATE fallback
;
530 ERR_STATE
*ret
=NULL
,tmp
,*tmpp
;
534 pid
=(unsigned long)CRYPTO_thread_id();
536 CRYPTO_r_lock(CRYPTO_LOCK_ERR
);
537 if (thread_hash
== NULL
)
539 CRYPTO_r_unlock(CRYPTO_LOCK_ERR
);
540 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
541 if (thread_hash
== NULL
)
544 thread_hash
=lh_new(pid_hash
,pid_cmp
);
546 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
547 if (thread_hash
== NULL
) return(&fallback
);
550 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
555 ret
=(ERR_STATE
*)lh_retrieve(thread_hash
,(char *)&tmp
);
556 CRYPTO_r_unlock(CRYPTO_LOCK_ERR
);
559 /* ret == the error state, if NULL, make a new one */
562 ret
=(ERR_STATE
*)Malloc(sizeof(ERR_STATE
));
563 if (ret
== NULL
) return(&fallback
);
567 for (i
=0; i
<ERR_NUM_ERRORS
; i
++)
569 ret
->err_data
[i
]=NULL
;
570 ret
->err_data_flags
[i
]=0;
572 CRYPTO_w_lock(CRYPTO_LOCK_ERR
);
573 tmpp
=(ERR_STATE
*)lh_insert(thread_hash
,(char *)ret
);
574 CRYPTO_w_unlock(CRYPTO_LOCK_ERR
);
575 if (tmpp
!= NULL
) /* old entry - should not happen */
577 ERR_STATE_free(tmpp
);
583 int ERR_get_next_error_library(void)
585 static int value
=ERR_LIB_USER
;
590 void ERR_set_error_data(char *data
, int flags
)
601 es
->err_data
[i
]=data
;
602 es
->err_data_flags
[es
->top
]=flags
;
605 void ERR_add_error_data(int num
, ...)
613 if (str
== NULL
) return;
618 for (i
=0; i
<num
; i
++)
620 a
=va_arg(args
, char*);
621 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
640 ERR_set_error_data(str
,ERR_TXT_MALLOCED
|ERR_TXT_STRING
);