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) 1998-2000 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>
123 static LHASH *error_hash=NULL;
124 static LHASH *thread_hash=NULL;
126 /* static unsigned long err_hash(ERR_STRING_DATA *a); */
127 static unsigned long err_hash(const void *a_void);
128 /* static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b); */
129 static int err_cmp(const void *a_void, const void *b_void);
130 /* static unsigned long pid_hash(ERR_STATE *pid); */
131 static unsigned long pid_hash(const void *pid_void);
132 /* static int pid_cmp(ERR_STATE *a,ERR_STATE *pid); */
133 static int pid_cmp(const void *a_void,const void *pid_void);
134 static unsigned long get_error_values(int inc,const char **file,int *line,
135 const char **data,int *flags);
137 static void ERR_STATE_free(ERR_STATE *s);
139 static ERR_STRING_DATA ERR_str_libraries[]=
141 {ERR_PACK(ERR_LIB_NONE,0,0) ,"unknown library"},
142 {ERR_PACK(ERR_LIB_SYS,0,0) ,"system library"},
143 {ERR_PACK(ERR_LIB_BN,0,0) ,"bignum routines"},
144 {ERR_PACK(ERR_LIB_RSA,0,0) ,"rsa routines"},
145 {ERR_PACK(ERR_LIB_DSA,0,0) ,"dsa routines"},
146 {ERR_PACK(ERR_LIB_DH,0,0) ,"Diffie-Hellman routines"},
147 {ERR_PACK(ERR_LIB_EVP,0,0) ,"digital envelope routines"},
148 {ERR_PACK(ERR_LIB_BUF,0,0) ,"memory buffer routines"},
149 {ERR_PACK(ERR_LIB_BIO,0,0) ,"BIO routines"},
150 {ERR_PACK(ERR_LIB_OBJ,0,0) ,"object identifier routines"},
151 {ERR_PACK(ERR_LIB_PEM,0,0) ,"PEM routines"},
152 {ERR_PACK(ERR_LIB_ASN1,0,0) ,"asn1 encoding routines"},
153 {ERR_PACK(ERR_LIB_X509,0,0) ,"x509 certificate routines"},
154 {ERR_PACK(ERR_LIB_CONF,0,0) ,"configuration file routines"},
155 {ERR_PACK(ERR_LIB_METH,0,0) ,"X509 lookup 'method' routines"},
156 {ERR_PACK(ERR_LIB_SSL,0,0) ,"SSL routines"},
157 {ERR_PACK(ERR_LIB_RSAREF,0,0) ,"RSAref routines"},
158 {ERR_PACK(ERR_LIB_PROXY,0,0) ,"Proxy routines"},
159 {ERR_PACK(ERR_LIB_BIO,0,0) ,"BIO routines"},
160 {ERR_PACK(ERR_LIB_PKCS7,0,0) ,"PKCS7 routines"},
161 {ERR_PACK(ERR_LIB_X509V3,0,0) ,"X509 V3 routines"},
162 {ERR_PACK(ERR_LIB_PKCS12,0,0) ,"PKCS12 routines"},
163 {ERR_PACK(ERR_LIB_RAND,0,0) ,"random number generator"},
164 {ERR_PACK(ERR_LIB_DSO,0,0) ,"DSO support routines"},
165 {ERR_PACK(ERR_LIB_ENGINE,0,0) ,"engine routines"},
169 static ERR_STRING_DATA ERR_str_functs[]=
171 {ERR_PACK(0,SYS_F_FOPEN,0), "fopen"},
172 {ERR_PACK(0,SYS_F_CONNECT,0), "connect"},
173 {ERR_PACK(0,SYS_F_GETSERVBYNAME,0), "getservbyname"},
174 {ERR_PACK(0,SYS_F_SOCKET,0), "socket"},
175 {ERR_PACK(0,SYS_F_IOCTLSOCKET,0), "ioctlsocket"},
176 {ERR_PACK(0,SYS_F_BIND,0), "bind"},
177 {ERR_PACK(0,SYS_F_LISTEN,0), "listen"},
178 {ERR_PACK(0,SYS_F_ACCEPT,0), "accept"},
180 {ERR_PACK(0,SYS_F_WSASTARTUP,0), "WSAstartup"},
182 {ERR_PACK(0,SYS_F_OPENDIR,0), "opendir"},
186 static ERR_STRING_DATA ERR_str_reasons[]=
188 {ERR_R_FATAL ,"fatal"},
189 {ERR_R_SYS_LIB ,"system lib"},
190 {ERR_R_BN_LIB ,"BN lib"},
191 {ERR_R_RSA_LIB ,"RSA lib"},
192 {ERR_R_DH_LIB ,"DH lib"},
193 {ERR_R_EVP_LIB ,"EVP lib"},
194 {ERR_R_BUF_LIB ,"BUF lib"},
195 {ERR_R_BIO_LIB ,"BIO lib"},
196 {ERR_R_OBJ_LIB ,"OBJ lib"},
197 {ERR_R_PEM_LIB ,"PEM lib"},
198 {ERR_R_X509_LIB ,"X509 lib"},
199 {ERR_R_METH_LIB ,"METH lib"},
200 {ERR_R_ASN1_LIB ,"ASN1 lib"},
201 {ERR_R_CONF_LIB ,"CONF lib"},
202 {ERR_R_SSL_LIB ,"SSL lib"},
203 {ERR_R_PROXY_LIB ,"PROXY lib"},
204 {ERR_R_BIO_LIB ,"BIO lib"},
205 {ERR_R_PKCS7_LIB ,"PKCS7 lib"},
206 {ERR_R_PKCS12_LIB ,"PKCS12 lib"},
207 {ERR_R_MALLOC_FAILURE ,"Malloc failure"},
208 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED ,"called a function you should not call"},
209 {ERR_R_PASSED_NULL_PARAMETER ,"passed a null parameter"},
210 {ERR_R_NESTED_ASN1_ERROR ,"nested asn1 error"},
211 {ERR_R_BAD_ASN1_OBJECT_HEADER ,"bad asn1 object header"},
212 {ERR_R_BAD_GET_ASN1_OBJECT_CALL ,"bad get asn1 object call"},
213 {ERR_R_EXPECTING_AN_ASN1_SEQUENCE ,"expecting an asn1 sequence"},
214 {ERR_R_ASN1_LENGTH_MISMATCH ,"asn1 length mismatch"},
215 {ERR_R_MISSING_ASN1_EOS ,"missing asn1 eos"},
216 {ERR_R_DSO_LIB ,"DSO lib"},
217 {ERR_R_ENGINE_LIB ,"ENGINE lib"},
223 #define NUM_SYS_STR_REASONS 127
224 #define LEN_SYS_STR_REASON 32
226 static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];
227 /* SYS_str_reasons is filled with copies of strerror() results at
229 * 'errno' values up to 127 should cover all usual errors,
230 * others will be displayed numerically by ERR_error_string.
231 * It is crucial that we have something for each reason code
232 * that occurs in ERR_str_reasons, or bogus reason strings
233 * will be returned for SYSerr(), which always gets an errno
234 * value and never one of those 'standard' reason codes. */
236 static void build_SYS_str_reasons()
238 /* OPENSSL_malloc cannot be used here, use static storage instead */
239 static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON];
242 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
244 for (i = 1; i <= NUM_SYS_STR_REASONS; i++)
246 ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
248 str->error = (unsigned long)i;
249 if (str->string == NULL)
251 char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]);
252 char *src = strerror(i);
255 strncpy(*dest, src, sizeof *dest);
256 (*dest)[sizeof *dest - 1] = '\0';
260 if (str->string == NULL)
261 str->string = "unknown";
264 /* Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL},
265 * as required by ERR_load_strings. */
267 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
271 #define err_clear_data(p,i) \
272 if (((p)->err_data[i] != NULL) && \
273 (p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
275 OPENSSL_free((p)->err_data[i]); \
276 (p)->err_data[i]=NULL; \
278 (p)->err_data_flags[i]=0;
280 static void ERR_STATE_free(ERR_STATE *s)
287 for (i=0; i<ERR_NUM_ERRORS; i++)
294 void ERR_load_ERR_strings(void)
300 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
303 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
306 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
309 ERR_load_strings(0,ERR_str_libraries);
310 ERR_load_strings(0,ERR_str_reasons);
311 ERR_load_strings(ERR_LIB_SYS,ERR_str_functs);
312 build_SYS_str_reasons();
313 ERR_load_strings(ERR_LIB_SYS,SYS_str_reasons);
319 void ERR_load_strings(int lib, ERR_STRING_DATA *str)
321 if (error_hash == NULL)
323 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
324 error_hash=lh_new(err_hash, err_cmp);
325 if (error_hash == NULL)
327 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
330 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
332 ERR_load_ERR_strings();
335 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
338 str->error|=ERR_PACK(lib,0,0);
339 lh_insert(error_hash,str);
342 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
345 void ERR_free_strings(void)
347 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
349 if (error_hash != NULL)
355 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
358 /********************************************************/
360 void ERR_put_error(int lib, int func, int reason, const char *file,
366 /* In the BS2000-OSD POSIX subsystem, the compiler generates
367 * path names in the form "*POSIX(/etc/passwd)".
368 * This dirty hack strips them to something sensible.
369 * @@@ We shouldn't modify a const string, though.
371 if (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {
374 /* Skip the "*POSIX(" prefix */
375 file += sizeof("*POSIX(")-1;
376 end = &file[strlen(file)-1];
379 /* Optional: use the basename of the path only. */
380 if ((end = strrchr(file, '/')) != NULL)
386 es->top=(es->top+1)%ERR_NUM_ERRORS;
387 if (es->top == es->bottom)
388 es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
389 es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
390 es->err_file[es->top]=file;
391 es->err_line[es->top]=line;
392 err_clear_data(es,es->top);
395 void ERR_clear_error(void)
402 /* hmm... is this needed */
403 for (i=0; i<ERR_NUM_ERRORS; i++)
406 es->err_file[i]=NULL;
408 err_clear_data(es,i);
411 es->top=es->bottom=0;
415 unsigned long ERR_get_error(void)
416 { return(get_error_values(1,NULL,NULL,NULL,NULL)); }
418 unsigned long ERR_get_error_line(const char **file,
420 { return(get_error_values(1,file,line,NULL,NULL)); }
422 unsigned long ERR_get_error_line_data(const char **file, int *line,
423 const char **data, int *flags)
424 { return(get_error_values(1,file,line,
427 unsigned long ERR_peek_error(void)
428 { return(get_error_values(0,NULL,NULL,NULL,NULL)); }
430 unsigned long ERR_peek_error_line(const char **file,
432 { return(get_error_values(0,file,line,NULL,NULL)); }
434 unsigned long ERR_peek_error_line_data(const char **file, int *line,
435 const char **data, int *flags)
436 { return(get_error_values(0,file,line,
439 static unsigned long get_error_values(int inc, const char **file, int *line,
440 const char **data, int *flags)
448 if (es->bottom == es->top) return(0);
449 i=(es->bottom+1)%ERR_NUM_ERRORS;
451 ret=es->err_buffer[i];
458 if ((file != NULL) && (line != NULL))
460 if (es->err_file[i] == NULL)
463 if (line != NULL) *line=0;
467 *file=es->err_file[i];
468 if (line != NULL) *line=es->err_line[i];
474 if (es->err_data[i] == NULL)
477 if (flags != NULL) *flags=0;
481 *data=es->err_data[i];
482 if (flags != NULL) *flags=es->err_data_flags[i];
488 void ERR_error_string_n(unsigned long e, char *buf, size_t len)
490 char lsbuf[64], fsbuf[64], rsbuf[64];
491 const char *ls,*fs,*rs;
498 ls=ERR_lib_error_string(e);
499 fs=ERR_func_error_string(e);
500 rs=ERR_reason_error_string(e);
503 BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
505 BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
507 BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
509 BIO_snprintf(buf, len,"error:%08lX:%s:%s:%s", e, ls?ls:lsbuf,
510 fs?fs:fsbuf, rs?rs:rsbuf);
511 if (strlen(buf) == len-1)
513 /* output may be truncated; make sure we always have 5
514 * colon-separated fields, i.e. 4 colons ... */
516 if (len > NUM_COLONS) /* ... if possible */
521 for (i = 0; i < NUM_COLONS; i++)
523 char *colon = strchr(s, ':');
524 if (colon == NULL || colon > &buf[len-1] - NUM_COLONS + i)
526 /* set colon no. i at last possible position
527 * (buf[len-1] is the terminating 0)*/
528 colon = &buf[len-1] - NUM_COLONS + i;
537 /* BAD for multi-threading: uses a local buffer if ret == NULL */
538 /* ERR_error_string_n should be used instead for ret != NULL
539 * as ERR_error_string cannot know how large the buffer is */
540 char *ERR_error_string(unsigned long e, char *ret)
542 static char buf[256];
544 if (ret == NULL) ret=buf;
545 ERR_error_string_n(e, ret, 256);
550 LHASH *ERR_get_string_table(void)
555 /* not thread-safe */
556 LHASH *ERR_get_err_state_table(void)
561 const char *ERR_lib_error_string(unsigned long e)
563 ERR_STRING_DATA d,*p=NULL;
568 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
570 if (error_hash != NULL)
572 d.error=ERR_PACK(l,0,0);
573 p=(ERR_STRING_DATA *)lh_retrieve(error_hash,&d);
576 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
578 return((p == NULL)?NULL:p->string);
581 const char *ERR_func_error_string(unsigned long e)
583 ERR_STRING_DATA d,*p=NULL;
589 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
591 if (error_hash != NULL)
593 d.error=ERR_PACK(l,f,0);
594 p=(ERR_STRING_DATA *)lh_retrieve(error_hash,&d);
597 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
599 return((p == NULL)?NULL:p->string);
602 const char *ERR_reason_error_string(unsigned long e)
604 ERR_STRING_DATA d,*p=NULL;
610 CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
612 if (error_hash != NULL)
614 d.error=ERR_PACK(l,0,r);
615 p=(ERR_STRING_DATA *)lh_retrieve(error_hash,&d);
618 d.error=ERR_PACK(0,0,r);
619 p=(ERR_STRING_DATA *)lh_retrieve(error_hash,&d);
623 CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
625 return((p == NULL)?NULL:p->string);
628 /* static unsigned long err_hash(ERR_STRING_DATA *a) */
629 static unsigned long err_hash(const void *a_void)
633 l=((ERR_STRING_DATA *)a_void)->error;
634 ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l);
635 return(ret^ret%19*13);
638 /* static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b) */
639 static int err_cmp(const void *a_void, const void *b_void)
641 return((int)(((ERR_STRING_DATA *)a_void)->error -
642 ((ERR_STRING_DATA *)b_void)->error));
645 /* static unsigned long pid_hash(ERR_STATE *a) */
646 static unsigned long pid_hash(const void *a_void)
648 return(((ERR_STATE *)a_void)->pid*13);
651 /* static int pid_cmp(ERR_STATE *a, ERR_STATE *b) */
652 static int pid_cmp(const void *a_void, const void *b_void)
654 return((int)((long)((ERR_STATE *)a_void)->pid -
655 (long)((ERR_STATE *)b_void)->pid));
658 void ERR_remove_state(unsigned long pid)
660 ERR_STATE *p = NULL,tmp;
662 if (thread_hash == NULL)
665 pid=(unsigned long)CRYPTO_thread_id();
667 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
670 p=(ERR_STATE *)lh_delete(thread_hash,&tmp);
671 if (lh_num_items(thread_hash) == 0)
673 /* make sure we don't leak memory */
674 lh_free(thread_hash);
678 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
680 if (p != NULL) ERR_STATE_free(p);
683 ERR_STATE *ERR_get_state(void)
685 static ERR_STATE fallback;
686 ERR_STATE *ret=NULL,tmp,*tmpp=NULL;
687 int thread_state_exists;
691 pid=(unsigned long)CRYPTO_thread_id();
693 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
694 if (thread_hash != NULL)
697 ret=(ERR_STATE *)lh_retrieve(thread_hash,&tmp);
699 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
701 /* ret == the error state, if NULL, make a new one */
704 ret=(ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE));
705 if (ret == NULL) return(&fallback);
709 for (i=0; i<ERR_NUM_ERRORS; i++)
711 ret->err_data[i]=NULL;
712 ret->err_data_flags[i]=0;
715 CRYPTO_w_lock(CRYPTO_LOCK_ERR);
717 /* no entry yet in thread_hash for current thread -
718 * thus, it may have changed since we last looked at it */
719 if (thread_hash == NULL)
720 thread_hash = lh_new(pid_hash, pid_cmp);
721 if (thread_hash == NULL)
722 thread_state_exists = 0; /* allocation error */
725 tmpp=(ERR_STATE *)lh_insert(thread_hash,ret);
726 thread_state_exists = 1;
729 CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
731 if (!thread_state_exists)
733 ERR_STATE_free(ret); /* could not insert it */
737 if (tmpp != NULL) /* old entry - should not happen */
739 ERR_STATE_free(tmpp);
745 int ERR_get_next_error_library(void)
747 static int value=ERR_LIB_USER;
752 void ERR_set_error_data(char *data, int flags)
763 es->err_data[i]=data;
764 es->err_data_flags[es->top]=flags;
767 void ERR_add_error_data(int num, ...)
774 str=OPENSSL_malloc(s+1);
775 if (str == NULL) return;
780 for (i=0; i<num; i++)
782 a=va_arg(args, char*);
783 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
790 p=OPENSSL_realloc(str,s+1);
802 ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING);