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 94 95 96 97 98 99 100
#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"},
{ERR_PACK(ERR_LIB_CONF,0,0)		,"configuation file routines"},
{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"},
103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141
{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
	{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"},
142
{ERR_R_PKCS12_LIB			,"PKCS12 lib"},
143 144
{ERR_R_MALLOC_FAILURE			,"Malloc failure"},
{ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED	,"called a fuction you should not call"},
145 146 147 148 149 150 151 152
{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"},

153 154 155 156
{0,NULL},
	};
#endif

157 158 159 160 161 162 163 164 165
#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
166
static void ERR_STATE_free(ERR_STATE *s)
167 168 169
	{
	int i;

B
Ben Laurie 已提交
170 171 172
	if(s == NULL)
	    return;

173 174 175 176 177 178 179
	for (i=0; i<ERR_NUM_ERRORS; i++)
		{
		err_clear_data(s,i);
		}
	Free(s);
	}

U
Ulf Möller 已提交
180
void ERR_load_ERR_strings(void)
181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202
	{
	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
203
void ERR_load_strings(int lib, ERR_STRING_DATA *str)
204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228
	{
	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);
		lh_insert(error_hash,(char *)str);
		str++;
		}
	CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
	}

U
Ulf Möller 已提交
229
void ERR_free_strings(void)
230 231 232 233 234 235 236 237 238 239 240 241
	{
	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

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

	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
	}

242 243
/********************************************************/

U
Ulf Möller 已提交
244 245
void ERR_put_error(int lib, int func, int reason, const char *file,
	     int line)
246 247 248
	{
	ERR_STATE *es;

249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267
#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
268 269 270 271 272 273 274 275
	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;
276
	err_clear_data(es,es->top);
277 278
	}

U
Ulf Möller 已提交
279
void ERR_clear_error(void)
280 281 282 283 284
	{
	ERR_STATE *es;

	es=ERR_get_state();

285 286
#if 0
	/* hmm... is this needed */
287 288 289 290 291
	for (i=0; i<ERR_NUM_ERRORS; i++)
		{
		es->err_buffer[i]=0;
		es->err_file[i]=NULL;
		es->err_line[i]= -1;
292
		err_clear_data(es,i);
293
		}
294
#endif
295 296 297 298
	es->top=es->bottom=0;
	}


U
Ulf Möller 已提交
299
unsigned long ERR_get_error(void)
300
	{ return(get_error_values(1,NULL,NULL,NULL,NULL)); }
301

U
Ulf Möller 已提交
302 303
unsigned long ERR_get_error_line(const char **file,
	     int *line)
304
	{ return(get_error_values(1,file,line,NULL,NULL)); }
305

U
Ulf Möller 已提交
306 307 308 309
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)); }
310

U
Ulf Möller 已提交
311
unsigned long ERR_peek_error(void)
312
	{ return(get_error_values(0,NULL,NULL,NULL,NULL)); }
313

U
Ulf Möller 已提交
314 315
unsigned long ERR_peek_error_line(const char **file,
	     int *line)
316
	{ return(get_error_values(0,file,line,NULL,NULL)); }
317

U
Ulf Möller 已提交
318 319 320 321 322 323 324
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)
325 326
	{	
	int i=0;
327
	ERR_STATE *es;
328
	unsigned long ret;
329 330 331

	es=ERR_get_state();

332
	if (es->bottom == es->top) return(0);
333
	i=(es->bottom+1)%ERR_NUM_ERRORS;
334 335 336

	ret=es->err_buffer[i];
	if (inc)
337
		{
338 339
		es->bottom=i;
		es->err_buffer[i]=0;
340
		}
341 342

	if ((file != NULL) && (line != NULL))
343
		{
344 345 346 347 348 349 350 351 352 353
		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];
			}
354 355
		}

356 357 358 359 360 361 362 363 364 365 366 367 368
	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];
			}
		}
369 370 371 372
	return(ret);
	}

/* BAD for multi-threaded, uses a local buffer if ret == NULL */
U
Ulf Möller 已提交
373
char *ERR_error_string(unsigned long e, char *ret)
374 375
	{
	static char buf[256];
B
Ben Laurie 已提交
376
	const char *ls,*fs,*rs;
377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406
	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
407
LHASH *ERR_get_string_table(void)
408 409 410 411
	{
	return(error_hash);
	}

U
Ulf Möller 已提交
412
LHASH *ERR_get_err_state_table(void)
413 414 415 416
	{
	return(thread_hash);
	}

U
Ulf Möller 已提交
417
const char *ERR_lib_error_string(unsigned long e)
418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436
	{
	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);
		p=(ERR_STRING_DATA *)lh_retrieve(error_hash,(char *)&d);
		}

	CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH);

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

U
Ulf Möller 已提交
437
const char *ERR_func_error_string(unsigned long e)
438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457
	{
	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);
		p=(ERR_STRING_DATA *)lh_retrieve(error_hash,(char *)&d);
		}

	CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH);

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

U
Ulf Möller 已提交
458
const char *ERR_reason_error_string(unsigned long e)
459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484
	{
	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);
		p=(ERR_STRING_DATA *)lh_retrieve(error_hash,(char *)&d);
		if (p == NULL)
			{
			d.error=ERR_PACK(0,0,r);
			p=(ERR_STRING_DATA *)lh_retrieve(error_hash,
				(char *)&d);
			}
		}

	CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH);

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

U
Ulf Möller 已提交
485
static unsigned long err_hash(ERR_STRING_DATA *a)
486 487 488 489 490 491 492 493
	{
	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
494
static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b)
495 496 497 498
	{
	return((int)(a->error-b->error));
	}

U
Ulf Möller 已提交
499
static unsigned long pid_hash(ERR_STATE *a)
500 501 502 503
	{
	return(a->pid*13);
	}

U
Ulf Möller 已提交
504
static int pid_cmp(ERR_STATE *a, ERR_STATE *b)
505 506 507 508
	{
	return((int)((long)a->pid - (long)b->pid));
	}

U
Ulf Möller 已提交
509
void ERR_remove_state(unsigned long pid)
510 511 512 513 514 515 516 517 518 519 520
	{
	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);
	p=(ERR_STATE *)lh_delete(thread_hash,(char *)&tmp);
	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
521 522

	if (p != NULL) ERR_STATE_free(p);
523 524
	}

U
Ulf Möller 已提交
525
ERR_STATE *ERR_get_state(void)
526 527 528
	{
	static ERR_STATE fallback;
	ERR_STATE *ret=NULL,tmp,*tmpp;
529
	int i;
530 531 532 533 534 535 536 537 538 539 540
	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)
			{
541
			MemCheck_off();
542
			thread_hash=lh_new(pid_hash,pid_cmp);
543
			MemCheck_on();
544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564
			CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
			if (thread_hash == NULL) return(&fallback);
			}
		else
			CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
		}
	else
		{
		tmp.pid=pid;
		ret=(ERR_STATE *)lh_retrieve(thread_hash,(char *)&tmp);
		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;
565 566 567 568 569
		for (i=0; i<ERR_NUM_ERRORS; i++)
			{
			ret->err_data[i]=NULL;
			ret->err_data_flags[i]=0;
			}
570 571 572 573
		CRYPTO_w_lock(CRYPTO_LOCK_ERR);
		tmpp=(ERR_STATE *)lh_insert(thread_hash,(char *)ret);
		CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
		if (tmpp != NULL) /* old entry - should not happen */
574 575 576
			{
			ERR_STATE_free(tmpp);
			}
577 578 579 580
		}
	return(ret);
	}

U
Ulf Möller 已提交
581
int ERR_get_next_error_library(void)
582 583 584 585 586 587
	{
	static int value=ERR_LIB_USER;

	return(value++);
	}

U
Ulf Möller 已提交
588
void ERR_set_error_data(char *data, int flags)
589 590 591 592 593 594 595 596 597 598 599 600 601 602
	{
	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
603
void ERR_add_error_data(int num, ...)
604
	{
U
Ulf Möller 已提交
605
	va_list args;
606 607 608 609 610 611 612 613
	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
614
	va_start(args, num);
615 616 617
	n=0;
	for (i=0; i<num; i++)
		{
U
Ulf Möller 已提交
618
		a=va_arg(args, char*);
619 620
		/* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
		if (a != NULL)
621
			{
622 623
			n+=strlen(a);
			if (n > s)
624
				{
625 626 627 628 629 630 631 632 633
				s=n+20;
				p=Realloc(str,s+1);
				if (p == NULL)
					{
					Free(str);
					return;
					}
				else
					str=p;
634
				}
635
			strcat(str,a);
636 637 638 639
			}
		}
	ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING);

U
Ulf Möller 已提交
640
	va_end(args);
641 642
	}