err.c 15.6 KB
Newer Older
1
/* crypto/err/err.c */
2
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>
U
Ulf Möller 已提交
60
#include <stdarg.h>
61 62
#include <openssl/lhash.h>
#include <openssl/crypto.h>
63
#include "cryptlib.h"
64 65 66
#include <openssl/buffer.h>
#include <openssl/err.h>
#include <openssl/crypto.h>
67 68 69 70 71 72 73 74 75


static LHASH *error_hash=NULL;
static LHASH *thread_hash=NULL;

static unsigned long err_hash(ERR_STRING_DATA *a);
static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b);
static unsigned long pid_hash(ERR_STATE *pid);
static int pid_cmp(ERR_STATE *a,ERR_STATE *pid);
B
Ben Laurie 已提交
76 77
static unsigned long get_error_values(int inc,const char **file,int *line,
				      const char **data,int *flags);
78
static void ERR_STATE_free(ERR_STATE *s);
79 80 81 82 83 84 85 86 87 88 89 90 91 92 93
#ifndef NO_ERR
static ERR_STRING_DATA ERR_str_libraries[]=
	{
{ERR_PACK(ERR_LIB_NONE,0,0)		,"unknown library"},
{ERR_PACK(ERR_LIB_SYS,0,0)		,"system library"},
{ERR_PACK(ERR_LIB_BN,0,0)		,"bignum routines"},
{ERR_PACK(ERR_LIB_RSA,0,0)		,"rsa routines"},
{ERR_PACK(ERR_LIB_DH,0,0)		,"Diffie-Hellman routines"},
{ERR_PACK(ERR_LIB_EVP,0,0)		,"digital envelope routines"},
{ERR_PACK(ERR_LIB_BUF,0,0)		,"memory buffer routines"},
{ERR_PACK(ERR_LIB_BIO,0,0)		,"BIO routines"},
{ERR_PACK(ERR_LIB_OBJ,0,0)		,"object identifier routines"},
{ERR_PACK(ERR_LIB_PEM,0,0)		,"PEM routines"},
{ERR_PACK(ERR_LIB_ASN1,0,0)		,"asn1 encoding routines"},
{ERR_PACK(ERR_LIB_X509,0,0)		,"x509 certificate routines"},
U
Ulf Möller 已提交
94
{ERR_PACK(ERR_LIB_CONF,0,0)		,"configuration file routines"},
95 96 97 98 99 100
{ERR_PACK(ERR_LIB_METH,0,0)		,"X509 lookup 'method' routines"},
{ERR_PACK(ERR_LIB_SSL,0,0)		,"SSL routines"},
{ERR_PACK(ERR_LIB_RSAREF,0,0)		,"RSAref routines"},
{ERR_PACK(ERR_LIB_PROXY,0,0)		,"Proxy routines"},
{ERR_PACK(ERR_LIB_BIO,0,0)		,"BIO routines"},
{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"},
104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119
{0,NULL},
	};

static ERR_STRING_DATA ERR_str_functs[]=
	{
	{ERR_PACK(0,SYS_F_FOPEN,0),     	"fopen"},
	{ERR_PACK(0,SYS_F_CONNECT,0),		"connect"},
	{ERR_PACK(0,SYS_F_GETSERVBYNAME,0),	"getservbyname"},
	{ERR_PACK(0,SYS_F_SOCKET,0),		"socket"}, 
	{ERR_PACK(0,SYS_F_IOCTLSOCKET,0),	"ioctlsocket"},
	{ERR_PACK(0,SYS_F_BIND,0),		"bind"},
	{ERR_PACK(0,SYS_F_LISTEN,0),		"listen"},
	{ERR_PACK(0,SYS_F_ACCEPT,0),		"accept"},
#ifdef WINDOWS
	{ERR_PACK(0,SYS_F_WSASTARTUP,0),	"WSAstartup"},
#endif
120
	{ERR_PACK(0,SYS_F_OPENDIR,0),		"opendir"},
121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143
	{0,NULL},
	};

static ERR_STRING_DATA ERR_str_reasons[]=
	{
{ERR_R_FATAL                             ,"fatal"},
{ERR_R_SYS_LIB				,"system lib"},
{ERR_R_BN_LIB				,"BN lib"},
{ERR_R_RSA_LIB				,"RSA lib"},
{ERR_R_DH_LIB				,"DH lib"},
{ERR_R_EVP_LIB				,"EVP lib"},
{ERR_R_BUF_LIB				,"BUF lib"},
{ERR_R_BIO_LIB				,"BIO lib"},
{ERR_R_OBJ_LIB				,"OBJ lib"},
{ERR_R_PEM_LIB				,"PEM lib"},
{ERR_R_X509_LIB				,"X509 lib"},
{ERR_R_METH_LIB				,"METH lib"},
{ERR_R_ASN1_LIB				,"ASN1 lib"},
{ERR_R_CONF_LIB				,"CONF lib"},
{ERR_R_SSL_LIB				,"SSL lib"},
{ERR_R_PROXY_LIB			,"PROXY lib"},
{ERR_R_BIO_LIB				,"BIO lib"},
{ERR_R_PKCS7_LIB			,"PKCS7 lib"},
144
{ERR_R_PKCS12_LIB			,"PKCS12 lib"},
145
{ERR_R_MALLOC_FAILURE			,"Malloc failure"},
B
Bodo Möller 已提交
146
{ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED	,"called a function you should not call"},
147 148 149 150 151 152 153 154
{ERR_R_PASSED_NULL_PARAMETER		,"passed a null parameter"},
{ERR_R_NESTED_ASN1_ERROR		,"nested asn1 error"},
{ERR_R_BAD_ASN1_OBJECT_HEADER		,"bad asn1 object header"},
{ERR_R_BAD_GET_ASN1_OBJECT_CALL		,"bad get asn1 object call"},
{ERR_R_EXPECTING_AN_ASN1_SEQUENCE	,"expecting an asn1 sequence"},
{ERR_R_ASN1_LENGTH_MISMATCH		,"asn1 length mismatch"},
{ERR_R_MISSING_ASN1_EOS			,"missing asn1 eos"},

155 156 157 158
{0,NULL},
	};
#endif

159 160 161 162 163 164 165 166 167
#define err_clear_data(p,i) \
	if (((p)->err_data[i] != NULL) && \
		(p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
		{  \
		Free((p)->err_data[i]); \
		(p)->err_data[i]=NULL; \
		} \
	(p)->err_data_flags[i]=0;

U
Ulf Möller 已提交
168
static void ERR_STATE_free(ERR_STATE *s)
169 170 171
	{
	int i;

B
Ben Laurie 已提交
172 173 174
	if(s == NULL)
	    return;

175 176 177 178 179 180 181
	for (i=0; i<ERR_NUM_ERRORS; i++)
		{
		err_clear_data(s,i);
		}
	Free(s);
	}

U
Ulf Möller 已提交
182
void ERR_load_ERR_strings(void)
183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204
	{
	static int init=1;

	if (init)
		{
		CRYPTO_w_lock(CRYPTO_LOCK_ERR);
		if (init == 0)
			{
			CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
			return;
			}
		init=0;
		CRYPTO_w_unlock(CRYPTO_LOCK_ERR);

#ifndef NO_ERR
		ERR_load_strings(0,ERR_str_libraries);
		ERR_load_strings(0,ERR_str_reasons);
		ERR_load_strings(ERR_LIB_SYS,ERR_str_functs);
#endif
		}
	}

U
Ulf Möller 已提交
205
void ERR_load_strings(int lib, ERR_STRING_DATA *str)
206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224
	{
	if (error_hash == NULL)
		{
		CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
		error_hash=lh_new(err_hash,err_cmp);
		if (error_hash == NULL)
			{
			CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
			return;
			}
		CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);

		ERR_load_ERR_strings();
		}

	CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
	while (str->error)
		{
		str->error|=ERR_PACK(lib,0,0);
225
		lh_insert(error_hash,str);
226 227 228 229 230
		str++;
		}
	CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
	}

U
Ulf Möller 已提交
231
void ERR_free_strings(void)
232 233 234 235 236 237 238 239 240 241 242 243
	{
	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

	if (error_hash != NULL)
		{
		lh_free(error_hash);
		error_hash=NULL;
		}

	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
	}

244 245
/********************************************************/

U
Ulf Möller 已提交
246 247
void ERR_put_error(int lib, int func, int reason, const char *file,
	     int line)
248 249 250
	{
	ERR_STATE *es;

251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269
#ifdef _OSD_POSIX
	/* In the BS2000-OSD POSIX subsystem, the compiler generates
	 * path names in the form "*POSIX(/etc/passwd)".
	 * This dirty hack strips them to something sensible.
	 * @@@ We shouldn't modify a const string, though.
	 */
	if (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {
		char *end;

		/* Skip the "*POSIX(" prefix */
		file += sizeof("*POSIX(")-1;
		end = &file[strlen(file)-1];
		if (*end == ')')
			*end = '\0';
		/* Optional: use the basename of the path only. */
		if ((end = strrchr(file, '/')) != NULL)
			file = &end[1];
	}
#endif
270 271 272 273 274 275 276 277
	es=ERR_get_state();

	es->top=(es->top+1)%ERR_NUM_ERRORS;
	if (es->top == es->bottom)
		es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
	es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
	es->err_file[es->top]=file;
	es->err_line[es->top]=line;
278
	err_clear_data(es,es->top);
279 280
	}

U
Ulf Möller 已提交
281
void ERR_clear_error(void)
282 283 284 285 286
	{
	ERR_STATE *es;

	es=ERR_get_state();

287 288
#if 0
	/* hmm... is this needed */
289 290 291 292 293
	for (i=0; i<ERR_NUM_ERRORS; i++)
		{
		es->err_buffer[i]=0;
		es->err_file[i]=NULL;
		es->err_line[i]= -1;
294
		err_clear_data(es,i);
295
		}
296
#endif
297 298 299 300
	es->top=es->bottom=0;
	}


U
Ulf Möller 已提交
301
unsigned long ERR_get_error(void)
302
	{ return(get_error_values(1,NULL,NULL,NULL,NULL)); }
303

U
Ulf Möller 已提交
304 305
unsigned long ERR_get_error_line(const char **file,
	     int *line)
306
	{ return(get_error_values(1,file,line,NULL,NULL)); }
307

U
Ulf Möller 已提交
308 309 310 311
unsigned long ERR_get_error_line_data(const char **file, int *line,
	     const char **data, int *flags)
	{ return(get_error_values(1,file,line,
	     data,flags)); }
312

U
Ulf Möller 已提交
313
unsigned long ERR_peek_error(void)
314
	{ return(get_error_values(0,NULL,NULL,NULL,NULL)); }
315

U
Ulf Möller 已提交
316 317
unsigned long ERR_peek_error_line(const char **file,
	     int *line)
318
	{ return(get_error_values(0,file,line,NULL,NULL)); }
319

U
Ulf Möller 已提交
320 321 322 323 324 325 326
unsigned long ERR_peek_error_line_data(const char **file, int *line,
	     const char **data, int *flags)
	{ return(get_error_values(0,file,line,
	     data,flags)); }

static unsigned long get_error_values(int inc, const char **file, int *line,
	     const char **data, int *flags)
327 328
	{	
	int i=0;
329
	ERR_STATE *es;
330
	unsigned long ret;
331 332 333

	es=ERR_get_state();

334
	if (es->bottom == es->top) return(0);
335
	i=(es->bottom+1)%ERR_NUM_ERRORS;
336 337 338

	ret=es->err_buffer[i];
	if (inc)
339
		{
340 341
		es->bottom=i;
		es->err_buffer[i]=0;
342
		}
343 344

	if ((file != NULL) && (line != NULL))
345
		{
346 347 348 349 350 351 352 353 354 355
		if (es->err_file[i] == NULL)
			{
			*file="NA";
			if (line != NULL) *line=0;
			}
		else
			{
			*file=es->err_file[i];
			if (line != NULL) *line=es->err_line[i];
			}
356 357
		}

358 359 360 361 362 363 364 365 366 367 368 369 370
	if (data != NULL)
		{
		if (es->err_data[i] == NULL)
			{
			*data="";
			if (flags != NULL) *flags=0;
			}
		else
			{
			*data=es->err_data[i];
			if (flags != NULL) *flags=es->err_data_flags[i];
			}
		}
371 372 373 374
	return(ret);
	}

/* BAD for multi-threaded, uses a local buffer if ret == NULL */
U
Ulf Möller 已提交
375
char *ERR_error_string(unsigned long e, char *ret)
376 377
	{
	static char buf[256];
B
Ben Laurie 已提交
378
	const char *ls,*fs,*rs;
379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408
	unsigned long l,f,r;
	int i;

	l=ERR_GET_LIB(e);
	f=ERR_GET_FUNC(e);
	r=ERR_GET_REASON(e);

	ls=ERR_lib_error_string(e);
	fs=ERR_func_error_string(e);
	rs=ERR_reason_error_string(e);

	if (ret == NULL) ret=buf;

	sprintf(&(ret[0]),"error:%08lX:",e);
	i=strlen(ret);
	if (ls == NULL)
		sprintf(&(ret[i]),":lib(%lu) ",l);
	else	sprintf(&(ret[i]),"%s",ls);
	i=strlen(ret);
	if (fs == NULL)
		sprintf(&(ret[i]),":func(%lu) ",f);
	else	sprintf(&(ret[i]),":%s",fs);
	i=strlen(ret);
	if (rs == NULL)
		sprintf(&(ret[i]),":reason(%lu)",r);
	else	sprintf(&(ret[i]),":%s",rs);

	return(ret);
	}

U
Ulf Möller 已提交
409
LHASH *ERR_get_string_table(void)
410 411 412 413
	{
	return(error_hash);
	}

U
Ulf Möller 已提交
414
LHASH *ERR_get_err_state_table(void)
415 416 417 418
	{
	return(thread_hash);
	}

U
Ulf Möller 已提交
419
const char *ERR_lib_error_string(unsigned long e)
420 421 422 423 424 425 426 427 428 429 430
	{
	ERR_STRING_DATA d,*p=NULL;
	unsigned long l;

	l=ERR_GET_LIB(e);

	CRYPTO_r_lock(CRYPTO_LOCK_ERR_HASH);

	if (error_hash != NULL)
		{
		d.error=ERR_PACK(l,0,0);
431
		p=(ERR_STRING_DATA *)lh_retrieve(error_hash,&d);
432 433 434 435 436 437 438
		}

	CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH);

	return((p == NULL)?NULL:p->string);
	}

U
Ulf Möller 已提交
439
const char *ERR_func_error_string(unsigned long e)
440 441 442 443 444 445 446 447 448 449 450 451
	{
	ERR_STRING_DATA d,*p=NULL;
	unsigned long l,f;

	l=ERR_GET_LIB(e);
	f=ERR_GET_FUNC(e);

	CRYPTO_r_lock(CRYPTO_LOCK_ERR_HASH);

	if (error_hash != NULL)
		{
		d.error=ERR_PACK(l,f,0);
452
		p=(ERR_STRING_DATA *)lh_retrieve(error_hash,&d);
453 454 455 456 457 458 459
		}

	CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH);

	return((p == NULL)?NULL:p->string);
	}

U
Ulf Möller 已提交
460
const char *ERR_reason_error_string(unsigned long e)
461 462 463 464 465 466 467 468 469 470 471 472
	{
	ERR_STRING_DATA d,*p=NULL;
	unsigned long l,r;

	l=ERR_GET_LIB(e);
	r=ERR_GET_REASON(e);

	CRYPTO_r_lock(CRYPTO_LOCK_ERR_HASH);

	if (error_hash != NULL)
		{
		d.error=ERR_PACK(l,0,r);
473
		p=(ERR_STRING_DATA *)lh_retrieve(error_hash,&d);
474 475 476
		if (p == NULL)
			{
			d.error=ERR_PACK(0,0,r);
477
			p=(ERR_STRING_DATA *)lh_retrieve(error_hash,&d);
478 479 480 481 482 483 484 485
			}
		}

	CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH);

	return((p == NULL)?NULL:p->string);
	}

U
Ulf Möller 已提交
486
static unsigned long err_hash(ERR_STRING_DATA *a)
487 488 489 490 491 492 493 494
	{
	unsigned long ret,l;

	l=a->error;
	ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l);
	return(ret^ret%19*13);
	}

U
Ulf Möller 已提交
495
static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b)
496 497 498 499
	{
	return((int)(a->error-b->error));
	}

U
Ulf Möller 已提交
500
static unsigned long pid_hash(ERR_STATE *a)
501 502 503 504
	{
	return(a->pid*13);
	}

U
Ulf Möller 已提交
505
static int pid_cmp(ERR_STATE *a, ERR_STATE *b)
506 507 508 509
	{
	return((int)((long)a->pid - (long)b->pid));
	}

U
Ulf Möller 已提交
510
void ERR_remove_state(unsigned long pid)
511 512 513 514 515 516 517 518 519
	{
	ERR_STATE *p,tmp;

	if (thread_hash == NULL)
		return;
	if (pid == 0)
		pid=(unsigned long)CRYPTO_thread_id();
	tmp.pid=pid;
	CRYPTO_w_lock(CRYPTO_LOCK_ERR);
520
	p=(ERR_STATE *)lh_delete(thread_hash,&tmp);
521
	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
522 523

	if (p != NULL) ERR_STATE_free(p);
524 525
	}

U
Ulf Möller 已提交
526
ERR_STATE *ERR_get_state(void)
527 528 529
	{
	static ERR_STATE fallback;
	ERR_STATE *ret=NULL,tmp,*tmpp;
530
	int i;
531 532 533 534 535 536 537 538 539 540 541
	unsigned long pid;

	pid=(unsigned long)CRYPTO_thread_id();

	CRYPTO_r_lock(CRYPTO_LOCK_ERR);
	if (thread_hash == NULL)
		{
		CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
		CRYPTO_w_lock(CRYPTO_LOCK_ERR);
		if (thread_hash == NULL)
			{
542
			MemCheck_off();
543
			thread_hash=lh_new(pid_hash,pid_cmp);
544
			MemCheck_on();
545 546 547 548 549 550 551 552 553
			CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
			if (thread_hash == NULL) return(&fallback);
			}
		else
			CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
		}
	else
		{
		tmp.pid=pid;
554
		ret=(ERR_STATE *)lh_retrieve(thread_hash,&tmp);
555 556 557 558 559 560 561 562 563 564 565
		CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
		}

	/* ret == the error state, if NULL, make a new one */
	if (ret == NULL)
		{
		ret=(ERR_STATE *)Malloc(sizeof(ERR_STATE));
		if (ret == NULL) return(&fallback);
		ret->pid=pid;
		ret->top=0;
		ret->bottom=0;
566 567 568 569 570
		for (i=0; i<ERR_NUM_ERRORS; i++)
			{
			ret->err_data[i]=NULL;
			ret->err_data_flags[i]=0;
			}
571
		CRYPTO_w_lock(CRYPTO_LOCK_ERR);
572
		tmpp=(ERR_STATE *)lh_insert(thread_hash,ret);
573 574
		CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
		if (tmpp != NULL) /* old entry - should not happen */
575 576 577
			{
			ERR_STATE_free(tmpp);
			}
578 579 580 581
		}
	return(ret);
	}

U
Ulf Möller 已提交
582
int ERR_get_next_error_library(void)
583 584 585 586 587 588
	{
	static int value=ERR_LIB_USER;

	return(value++);
	}

U
Ulf Möller 已提交
589
void ERR_set_error_data(char *data, int flags)
590 591 592 593 594 595 596 597 598 599 600 601 602 603
	{
	ERR_STATE *es;
	int i;

	es=ERR_get_state();

	i=es->top;
	if (i == 0)
		i=ERR_NUM_ERRORS-1;

	es->err_data[i]=data;
	es->err_data_flags[es->top]=flags;
	}

U
Ulf Möller 已提交
604
void ERR_add_error_data(int num, ...)
605
	{
U
Ulf Möller 已提交
606
	va_list args;
607 608 609 610 611 612 613 614
	int i,n,s;
	char *str,*p,*a;

	s=64;
	str=Malloc(s+1);
	if (str == NULL) return;
	str[0]='\0';

U
Ulf Möller 已提交
615
	va_start(args, num);
616 617 618
	n=0;
	for (i=0; i<num; i++)
		{
U
Ulf Möller 已提交
619
		a=va_arg(args, char*);
620 621
		/* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
		if (a != NULL)
622
			{
623 624
			n+=strlen(a);
			if (n > s)
625
				{
626 627 628 629 630 631 632 633 634
				s=n+20;
				p=Realloc(str,s+1);
				if (p == NULL)
					{
					Free(str);
					return;
					}
				else
					str=p;
635
				}
636
			strcat(str,a);
637 638 639 640
			}
		}
	ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING);

U
Ulf Möller 已提交
641
	va_end(args);
642 643
	}