[thirdparty/openssl.git] / crypto / cryptlib.c

/* crypto/cryptlib.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * 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>
#include <string.h>
#include "cryptlib.h"
#include <openssl/crypto.h>
#include <openssl/safestack.h>

#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
static double SSLeay_MSVC5_hack=0.0; /* and for VC1.5 */
#endif

DECLARE_STACK_OF(CRYPTO_dynlock)
IMPLEMENT_STACK_OF(CRYPTO_dynlock)

/* real #defines in crypto.h, keep these upto date */
static const char* lock_names[CRYPTO_NUM_LOCKS] =
	{
	"<<ERROR>>",
	"err",
	"ex_data",
	"x509",
	"x509_info",
	"x509_pkey",
	"x509_crl",
	"x509_req",
	"dsa",
	"rsa",
	"evp_pkey",
	"x509_store",
	"ssl_ctx",
	"ssl_cert",
	"ssl_session",
	"ssl_sess_cert",
	"ssl",
	"rand",
	"rand2",
	"debug_malloc",
	"BIO",
	"gethostbyname",
	"getservbyname",
	"readdir",
	"RSA_blinding",
	"dh",
	"debug_malloc2",
	"dso",
	"dynlock",
	"engine",
	"ui",
	"ecdsa",
	"ec",
#if CRYPTO_NUM_LOCKS != 33
# error "Inconsistency between crypto.h and cryptlib.c"
#endif
	};

/* This is for applications to allocate new type names in the non-dynamic
   array of lock names.  These are numbered with positive numbers.  */
static STACK *app_locks=NULL;

/* For applications that want a more dynamic way of handling threads, the
   following stack is used.  These are externally numbered with negative
   numbers.  */
static STACK_OF(CRYPTO_dynlock) *dyn_locks=NULL;


static void (MS_FAR *locking_callback)(int mode,int type,
	const char *file,int line)=NULL;
static int (MS_FAR *add_lock_callback)(int *pointer,int amount,
	int type,const char *file,int line)=NULL;
static unsigned long (MS_FAR *id_callback)(void)=NULL;
static struct CRYPTO_dynlock_value *(MS_FAR *dynlock_create_callback)
	(const char *file,int line)=NULL;
static void (MS_FAR *dynlock_lock_callback)(int mode,
	struct CRYPTO_dynlock_value *l, const char *file,int line)=NULL;
static void (MS_FAR *dynlock_destroy_callback)(struct CRYPTO_dynlock_value *l,
	const char *file,int line)=NULL;

int CRYPTO_get_new_lockid(char *name)
	{
	char *str;
	int i;

#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
	/* A hack to make Visual C++ 5.0 work correctly when linking as
	 * a DLL using /MT. Without this, the application cannot use
	 * and floating point printf's.
	 * It also seems to be needed for Visual C 1.5 (win16) */
	SSLeay_MSVC5_hack=(double)name[0]*(double)name[1];
#endif

	if ((app_locks == NULL) && ((app_locks=sk_new_null()) == NULL))
		{
		CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE);
		return(0);
		}
	if ((str=BUF_strdup(name)) == NULL)
		{
		CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE);
		return(0);
		}
	i=sk_push(app_locks,str);
	if (!i)
		OPENSSL_free(str);
	else
		i+=CRYPTO_NUM_LOCKS; /* gap of one :-) */
	return(i);
	}

int CRYPTO_num_locks(void)
	{
	return CRYPTO_NUM_LOCKS;
	}

int CRYPTO_get_new_dynlockid(void)
	{
	int i = 0;
	CRYPTO_dynlock *pointer = NULL;

	if (dynlock_create_callback == NULL)
		{
		CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK);
		return(0);
		}
	CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
	if ((dyn_locks == NULL)
		&& ((dyn_locks=sk_CRYPTO_dynlock_new_null()) == NULL))
		{
		CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
		CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE);
		return(0);
		}
	CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);

	pointer = (CRYPTO_dynlock *)OPENSSL_malloc(sizeof(CRYPTO_dynlock));
	if (pointer == NULL)
		{
		CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE);
		return(0);
		}
	pointer->references = 1;
	pointer->data = dynlock_create_callback(__FILE__,__LINE__);
	if (pointer->data == NULL)
		{
		OPENSSL_free(pointer);
		CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE);
		return(0);
		}

	CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
	/* First, try to find an existing empty slot */
	i=sk_CRYPTO_dynlock_find(dyn_locks,NULL);
	/* If there was none, push, thereby creating a new one */
	if (i == -1)
		i=sk_CRYPTO_dynlock_push(dyn_locks,pointer);
	CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);

	if (!i)
		{
		dynlock_destroy_callback(pointer->data,__FILE__,__LINE__);
		OPENSSL_free(pointer);
		}
	else
		i += 1; /* to avoid 0 */
	return -i;
	}

void CRYPTO_destroy_dynlockid(int i)
	{
	CRYPTO_dynlock *pointer = NULL;
	if (i)
		i = -i-1;
	if (dynlock_destroy_callback == NULL)
		return;

	CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);

	if (dyn_locks == NULL || i >= sk_CRYPTO_dynlock_num(dyn_locks))
		{
		CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
		return;
		}
	pointer = sk_CRYPTO_dynlock_value(dyn_locks, i);
	if (pointer != NULL)
		{
		--pointer->references;
#ifdef REF_CHECK
		if (pointer->references < 0)
			{
			fprintf(stderr,"CRYPTO_destroy_dynlockid, bad reference count\n");
			abort();
			}
		else
#endif
			if (pointer->references <= 0)
				{
				sk_CRYPTO_dynlock_set(dyn_locks, i, NULL);
				}
			else
				pointer = NULL;
		}
	CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);

	if (pointer)
		{
		dynlock_destroy_callback(pointer->data,__FILE__,__LINE__);
		OPENSSL_free(pointer);
		}
	}

struct CRYPTO_dynlock_value *CRYPTO_get_dynlock_value(int i)
	{
	CRYPTO_dynlock *pointer = NULL;
	if (i)
		i = -i-1;

	CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);

	if (dyn_locks != NULL && i < sk_CRYPTO_dynlock_num(dyn_locks))
		pointer = sk_CRYPTO_dynlock_value(dyn_locks, i);
	if (pointer)
		pointer->references++;

	CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);

	if (pointer)
		return pointer->data;
	return NULL;
	}

struct CRYPTO_dynlock_value *(*CRYPTO_get_dynlock_create_callback(void))
	(const char *file,int line)
	{
	return(dynlock_create_callback);
	}

void (*CRYPTO_get_dynlock_lock_callback(void))(int mode,
	struct CRYPTO_dynlock_value *l, const char *file,int line)
	{
	return(dynlock_lock_callback);
	}

void (*CRYPTO_get_dynlock_destroy_callback(void))
	(struct CRYPTO_dynlock_value *l, const char *file,int line)
	{
	return(dynlock_destroy_callback);
	}

void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(*func)
	(const char *file, int line))
	{
	dynlock_create_callback=func;
	}

void CRYPTO_set_dynlock_lock_callback(void (*func)(int mode,
	struct CRYPTO_dynlock_value *l, const char *file, int line))
	{
	dynlock_lock_callback=func;
	}

void CRYPTO_set_dynlock_destroy_callback(void (*func)
	(struct CRYPTO_dynlock_value *l, const char *file, int line))
	{
	dynlock_destroy_callback=func;
	}


void (*CRYPTO_get_locking_callback(void))(int mode,int type,const char *file,
		int line)
	{
	return(locking_callback);
	}

int (*CRYPTO_get_add_lock_callback(void))(int *num,int mount,int type,
					  const char *file,int line)
	{
	return(add_lock_callback);
	}

void CRYPTO_set_locking_callback(void (*func)(int mode,int type,
					      const char *file,int line))
	{
	locking_callback=func;
	}

void CRYPTO_set_add_lock_callback(int (*func)(int *num,int mount,int type,
					      const char *file,int line))
	{
	add_lock_callback=func;
	}

unsigned long (*CRYPTO_get_id_callback(void))(void)
	{
	return(id_callback);
	}

void CRYPTO_set_id_callback(unsigned long (*func)(void))
	{
	id_callback=func;
	}

unsigned long CRYPTO_thread_id(void)
	{
	unsigned long ret=0;

	if (id_callback == NULL)
		{
#ifdef OPENSSL_SYS_WIN16
		ret=(unsigned long)GetCurrentTask();
#elif defined(OPENSSL_SYS_WIN32)
		ret=(unsigned long)GetCurrentThreadId();
#elif defined(GETPID_IS_MEANINGLESS)
		ret=1L;
#else
		ret=(unsigned long)getpid();
#endif
		}
	else
		ret=id_callback();
	return(ret);
	}

void CRYPTO_lock(int mode, int type, const char *file, int line)
	{
#ifdef LOCK_DEBUG
		{
		char *rw_text,*operation_text;

		if (mode & CRYPTO_LOCK)
			operation_text="lock  ";
		else if (mode & CRYPTO_UNLOCK)
			operation_text="unlock";
		else
			operation_text="ERROR ";

		if (mode & CRYPTO_READ)
			rw_text="r";
		else if (mode & CRYPTO_WRITE)
			rw_text="w";
		else
			rw_text="ERROR";

		fprintf(stderr,"lock:%08lx:(%s)%s %-18s %s:%d\n",
			CRYPTO_thread_id(), rw_text, operation_text,
			CRYPTO_get_lock_name(type), file, line);
		}
#endif
	if (type < 0)
		{
		struct CRYPTO_dynlock_value *pointer
			= CRYPTO_get_dynlock_value(type);

		if (pointer && dynlock_lock_callback)
			{
			dynlock_lock_callback(mode, pointer, file, line);
			}

		CRYPTO_destroy_dynlockid(type);
		}
	else
		if (locking_callback != NULL)
			locking_callback(mode,type,file,line);
	}

int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,
	     int line)
	{
	int ret = 0;

	if (add_lock_callback != NULL)
		{
#ifdef LOCK_DEBUG
		int before= *pointer;
#endif

		ret=add_lock_callback(pointer,amount,type,file,line);
#ifdef LOCK_DEBUG
		fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
			CRYPTO_thread_id(),
			before,amount,ret,
			CRYPTO_get_lock_name(type),
			file,line);
#endif
		}
	else
		{
		CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,file,line);

		ret= *pointer+amount;
#ifdef LOCK_DEBUG
		fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
			CRYPTO_thread_id(),
			*pointer,amount,ret,
			CRYPTO_get_lock_name(type),
			file,line);
#endif
		*pointer=ret;
		CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,file,line);
		}
	return(ret);
	}

const char *CRYPTO_get_lock_name(int type)
	{
	if (type < 0)
		return("dynamic");
	else if (type < CRYPTO_NUM_LOCKS)
		return(lock_names[type]);
	else if (type-CRYPTO_NUM_LOCKS >= sk_num(app_locks))
		return("ERROR");
	else
		return(sk_value(app_locks,type-CRYPTO_NUM_LOCKS));
	}

#ifdef _DLL
#ifdef OPENSSL_SYS_WIN32

/* All we really need to do is remove the 'error' state when a thread
 * detaches */

BOOL WINAPI DLLEntryPoint(HINSTANCE hinstDLL, DWORD fdwReason,
	     LPVOID lpvReserved)
	{
	switch(fdwReason)
		{
	case DLL_PROCESS_ATTACH:
		break;
	case DLL_THREAD_ATTACH:
		break;
	case DLL_THREAD_DETACH:
		ERR_remove_state(0);
		break;
	case DLL_PROCESS_DETACH:
		break;
		}
	return(TRUE);
	}
#endif

#endif
Commit	Line	Data
d02b48c6	1	/* crypto/cryptlib.c */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	3	* All rights reserved.
	4	*
	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.
	8	*
	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).
	15	*
	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.
	22	*
	23	* Redistribution and use in source and binary forms, with or without
	24	* modification, are permitted provided that the following conditions
	25	* are met:
	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)"
	40	*
	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
	51	* SUCH DAMAGE.
	52	*
	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.]
	57	*/
	58
	59	#include <stdio.h>
	60	#include <string.h>
	61	#include "cryptlib.h"
ec577822	62	#include <openssl/crypto.h>
c7922304	63	#include <openssl/safestack.h>
d02b48c6	64
bc36ee62	65	#if defined(OPENSSL_SYS_WIN32) \|\| defined(OPENSSL_SYS_WIN16)
58964a49 RE	66	static double SSLeay_MSVC5_hack=0.0; /* and for VC1.5 */
	67	#endif
	68
7ef82068 DSH	69	DECLARE_STACK_OF(CRYPTO_dynlock)
7ef82068 DSH	70	IMPLEMENT_STACK_OF(CRYPTO_dynlock)
c7922304	71
d02b48c6	72	/* real #defines in crypto.h, keep these upto date */
e778802f	73	static const char* lock_names[CRYPTO_NUM_LOCKS] =
d02b48c6 RE	74	{
	75	"<<ERROR>>",
	76	"err",
78f79235	77	"ex_data",
d02b48c6 RE	78	"x509",
	79	"x509_info",
	80	"x509_pkey",
	81	"x509_crl",
	82	"x509_req",
	83	"dsa",
	84	"rsa",
	85	"evp_pkey",
	86	"x509_store",
	87	"ssl_ctx",
	88	"ssl_cert",
	89	"ssl_session",
d36bcdf5	90	"ssl_sess_cert",
d02b48c6 RE	91	"ssl",
d02b48c6 RE	92	"rand",
daba492c	93	"rand2",
d02b48c6	94	"debug_malloc",
d02b48c6	95	"BIO",
2a82c7cf BM	96	"gethostbyname",
	97	"getservbyname",
	98	"readdir",
58964a49	99	"RSA_blinding",
13066cee	100	"dh",
1f575f1b	101	"debug_malloc2",
9ec0126e	102	"dso",
e73a6965	103	"dynlock",
5270e702	104	"engine",
a63d5eaa	105	"ui",
4f85a2e2 BM	106	"ecdsa",
	107	"ec",
	108	#if CRYPTO_NUM_LOCKS != 33
2a82c7cf	109	# error "Inconsistency between crypto.h and cryptlib.c"
d36bcdf5	110	#endif
d02b48c6 RE	111	};
d02b48c6 RE	112
c7922304 RL	113	/* This is for applications to allocate new type names in the non-dynamic
c7922304 RL	114	array of lock names. These are numbered with positive numbers. */
58964a49 RE	115	static STACK *app_locks=NULL;
58964a49 RE	116
c7922304 RL	117	/* For applications that want a more dynamic way of handling threads, the
	118	following stack is used. These are externally numbered with negative
	119	numbers. */
	120	static STACK_OF(CRYPTO_dynlock) *dyn_locks=NULL;
	121
	122
d02b48c6	123	static void (MS_FAR *locking_callback)(int mode,int type,
e778802f	124	const char *file,int line)=NULL;
d02b48c6	125	static int (MS_FAR add_lock_callback)(int pointer,int amount,
e778802f	126	int type,const char *file,int line)=NULL;
d02b48c6	127	static unsigned long (MS_FAR *id_callback)(void)=NULL;
e73a6965 RL	128	static struct CRYPTO_dynlock_value (MS_FAR dynlock_create_callback)
e73a6965 RL	129	(const char *file,int line)=NULL;
55b7688e	130	static void (MS_FAR *dynlock_lock_callback)(int mode,
e73a6965 RL	131	struct CRYPTO_dynlock_value l, const char file,int line)=NULL;
e73a6965 RL	132	static void (MS_FAR dynlock_destroy_callback)(struct CRYPTO_dynlock_value l,
c7922304	133	const char *file,int line)=NULL;
c7922304	134
6b691a5c	135	int CRYPTO_get_new_lockid(char *name)
58964a49 RE	136	{
	137	char *str;
	138	int i;
	139
bc36ee62	140	#if defined(OPENSSL_SYS_WIN32) \|\| defined(OPENSSL_SYS_WIN16)
58964a49 RE	141	/* A hack to make Visual C++ 5.0 work correctly when linking as
	142	* a DLL using /MT. Without this, the application cannot use
	143	* and floating point printf's.
	144	* It also seems to be needed for Visual C 1.5 (win16) */
58964a49 RE	145	SSLeay_MSVC5_hack=(double)name[0]*(double)name[1];
	146	#endif
	147
dfeab068 RE	148	if ((app_locks == NULL) && ((app_locks=sk_new_null()) == NULL))
	149	{
	150	CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE);
	151	return(0);
	152	}
58964a49	153	if ((str=BUF_strdup(name)) == NULL)
c7922304 RL	154	{
c7922304 RL	155	CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE);
58964a49	156	return(0);
c7922304	157	}
58964a49 RE	158	i=sk_push(app_locks,str);
58964a49 RE	159	if (!i)
26a3a48d	160	OPENSSL_free(str);
58964a49 RE	161	else
	162	i+=CRYPTO_NUM_LOCKS; /* gap of one :-) */
	163	return(i);
	164	}
	165
a111306b BM	166	int CRYPTO_num_locks(void)
	167	{
	168	return CRYPTO_NUM_LOCKS;
	169	}
	170
c7922304 RL	171	int CRYPTO_get_new_dynlockid(void)
	172	{
	173	int i = 0;
	174	CRYPTO_dynlock *pointer = NULL;
	175
	176	if (dynlock_create_callback == NULL)
	177	{
	178	CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK);
	179	return(0);
	180	}
e73a6965	181	CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
c7922304	182	if ((dyn_locks == NULL)
7ef82068	183	&& ((dyn_locks=sk_CRYPTO_dynlock_new_null()) == NULL))
c7922304	184	{
e73a6965	185	CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
c7922304 RL	186	CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE);
	187	return(0);
	188	}
e73a6965	189	CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
c7922304	190
e73a6965	191	pointer = (CRYPTO_dynlock *)OPENSSL_malloc(sizeof(CRYPTO_dynlock));
c7922304 RL	192	if (pointer == NULL)
	193	{
	194	CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE);
	195	return(0);
	196	}
e73a6965 RL	197	pointer->references = 1;
	198	pointer->data = dynlock_create_callback(__FILE__,__LINE__);
	199	if (pointer->data == NULL)
	200	{
	201	OPENSSL_free(pointer);
	202	CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE);
	203	return(0);
	204	}
	205
	206	CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
55b7688e RL	207	/* First, try to find an existing empty slot */
	208	i=sk_CRYPTO_dynlock_find(dyn_locks,NULL);
	209	/* If there was none, push, thereby creating a new one */
	210	if (i == -1)
	211	i=sk_CRYPTO_dynlock_push(dyn_locks,pointer);
e73a6965 RL	212	CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
e73a6965 RL	213
c7922304	214	if (!i)
e73a6965 RL	215	{
	216	dynlock_destroy_callback(pointer->data,__FILE__,__LINE__);
	217	OPENSSL_free(pointer);
	218	}
c7922304 RL	219	else
	220	i += 1; /* to avoid 0 */
	221	return -i;
	222	}
	223
	224	void CRYPTO_destroy_dynlockid(int i)
	225	{
e73a6965	226	CRYPTO_dynlock *pointer = NULL;
c7922304 RL	227	if (i)
c7922304 RL	228	i = -i-1;
c7922304 RL	229	if (dynlock_destroy_callback == NULL)
c7922304 RL	230	return;
e73a6965 RL	231
	232	CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
	233
	234	if (dyn_locks == NULL \|\| i >= sk_CRYPTO_dynlock_num(dyn_locks))
883b0c22	235	{
bcbe4e52	236	CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
e73a6965	237	return;
883b0c22	238	}
e73a6965 RL	239	pointer = sk_CRYPTO_dynlock_value(dyn_locks, i);
	240	if (pointer != NULL)
	241	{
	242	--pointer->references;
	243	#ifdef REF_CHECK
	244	if (pointer->references < 0)
	245	{
	246	fprintf(stderr,"CRYPTO_destroy_dynlockid, bad reference count\n");
	247	abort();
	248	}
	249	else
	250	#endif
80340f1f	251	if (pointer->references <= 0)
e73a6965 RL	252	{
	253	sk_CRYPTO_dynlock_set(dyn_locks, i, NULL);
	254	}
	255	else
	256	pointer = NULL;
	257	}
	258	CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
	259
	260	if (pointer)
95a9fea7	261	{
e73a6965	262	dynlock_destroy_callback(pointer->data,__FILE__,__LINE__);
95a9fea7 BM	263	OPENSSL_free(pointer);
95a9fea7 BM	264	}
c7922304 RL	265	}
c7922304 RL	266
e73a6965	267	struct CRYPTO_dynlock_value *CRYPTO_get_dynlock_value(int i)
c7922304	268	{
e73a6965	269	CRYPTO_dynlock *pointer = NULL;
c7922304 RL	270	if (i)
c7922304 RL	271	i = -i-1;
e73a6965 RL	272
	273	CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
	274
	275	if (dyn_locks != NULL && i < sk_CRYPTO_dynlock_num(dyn_locks))
	276	pointer = sk_CRYPTO_dynlock_value(dyn_locks, i);
	277	if (pointer)
	278	pointer->references++;
	279
	280	CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
	281
	282	if (pointer)
	283	return pointer->data;
	284	return NULL;
c7922304 RL	285	}
c7922304 RL	286
55b7688e RL	287	struct CRYPTO_dynlock_value (CRYPTO_get_dynlock_create_callback(void))
55b7688e RL	288	(const char *file,int line)
d02b48c6	289	{
55b7688e	290	return(dynlock_create_callback);
d02b48c6 RE	291	}
d02b48c6 RE	292
e73a6965 RL	293	void (*CRYPTO_get_dynlock_lock_callback(void))(int mode,
e73a6965 RL	294	struct CRYPTO_dynlock_value l, const char file,int line)
c7922304	295	{
55b7688e RL	296	return(dynlock_lock_callback);
	297	}
	298
	299	void (*CRYPTO_get_dynlock_destroy_callback(void))
	300	(struct CRYPTO_dynlock_value l, const char file,int line)
	301	{
	302	return(dynlock_destroy_callback);
	303	}
	304
	305	void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value (func)
	306	(const char *file, int line))
	307	{
	308	dynlock_create_callback=func;
	309	}
	310
	311	void CRYPTO_set_dynlock_lock_callback(void (*func)(int mode,
	312	struct CRYPTO_dynlock_value l, const char file, int line))
	313	{
	314	dynlock_lock_callback=func;
	315	}
	316
	317	void CRYPTO_set_dynlock_destroy_callback(void (*func)
	318	(struct CRYPTO_dynlock_value l, const char file, int line))
	319	{
	320	dynlock_destroy_callback=func;
	321	}
	322
	323
	324	void (CRYPTO_get_locking_callback(void))(int mode,int type,const char file,
	325	int line)
	326	{
	327	return(locking_callback);
c7922304 RL	328	}
c7922304 RL	329
e778802f BL	330	int (CRYPTO_get_add_lock_callback(void))(int num,int mount,int type,
e778802f BL	331	const char *file,int line)
d02b48c6 RE	332	{
	333	return(add_lock_callback);
	334	}
	335
e778802f BL	336	void CRYPTO_set_locking_callback(void (*func)(int mode,int type,
e778802f BL	337	const char *file,int line))
d02b48c6 RE	338	{
	339	locking_callback=func;
	340	}
	341
e778802f BL	342	void CRYPTO_set_add_lock_callback(int (func)(int num,int mount,int type,
e778802f BL	343	const char *file,int line))
d02b48c6 RE	344	{
	345	add_lock_callback=func;
	346	}
	347
73d2257d	348	unsigned long (*CRYPTO_get_id_callback(void))(void)
d02b48c6 RE	349	{
	350	return(id_callback);
	351	}
	352
73d2257d	353	void CRYPTO_set_id_callback(unsigned long (*func)(void))
d02b48c6 RE	354	{
	355	id_callback=func;
	356	}
	357
6b691a5c	358	unsigned long CRYPTO_thread_id(void)
d02b48c6 RE	359	{
	360	unsigned long ret=0;
	361
	362	if (id_callback == NULL)
	363	{
bc36ee62	364	#ifdef OPENSSL_SYS_WIN16
d02b48c6	365	ret=(unsigned long)GetCurrentTask();
bc36ee62	366	#elif defined(OPENSSL_SYS_WIN32)
d02b48c6	367	ret=(unsigned long)GetCurrentThreadId();
a7c5241f	368	#elif defined(GETPID_IS_MEANINGLESS)
d02b48c6 RE	369	ret=1L;
	370	#else
	371	ret=(unsigned long)getpid();
	372	#endif
	373	}
	374	else
	375	ret=id_callback();
	376	return(ret);
	377	}
	378
6b691a5c	379	void CRYPTO_lock(int mode, int type, const char *file, int line)
d02b48c6 RE	380	{
	381	#ifdef LOCK_DEBUG
	382	{
	383	char rw_text,operation_text;
	384
	385	if (mode & CRYPTO_LOCK)
	386	operation_text="lock ";
	387	else if (mode & CRYPTO_UNLOCK)
	388	operation_text="unlock";
	389	else
	390	operation_text="ERROR ";
	391
	392	if (mode & CRYPTO_READ)
	393	rw_text="r";
	394	else if (mode & CRYPTO_WRITE)
	395	rw_text="w";
	396	else
	397	rw_text="ERROR";
	398
	399	fprintf(stderr,"lock:%08lx:(%s)%s %-18s %s:%d\n",
	400	CRYPTO_thread_id(), rw_text, operation_text,
	401	CRYPTO_get_lock_name(type), file, line);
	402	}
	403	#endif
c7922304 RL	404	if (type < 0)
c7922304 RL	405	{
e73a6965	406	struct CRYPTO_dynlock_value *pointer
a87f50fb	407	= CRYPTO_get_dynlock_value(type);
e73a6965	408
80340f1f	409	if (pointer && dynlock_lock_callback)
e73a6965	410	{
55b7688e	411	dynlock_lock_callback(mode, pointer, file, line);
e73a6965 RL	412	}
e73a6965 RL	413
a87f50fb	414	CRYPTO_destroy_dynlockid(type);
c7922304 RL	415	}
	416	else
	417	if (locking_callback != NULL)
	418	locking_callback(mode,type,file,line);
d02b48c6 RE	419	}
d02b48c6 RE	420
6b691a5c UM	421	int CRYPTO_add_lock(int pointer, int amount, int type, const char file,
6b691a5c UM	422	int line)
d02b48c6	423	{
c7922304	424	int ret = 0;
d02b48c6 RE	425
	426	if (add_lock_callback != NULL)
	427	{
	428	#ifdef LOCK_DEBUG
	429	int before= *pointer;
	430	#endif
	431
e73a6965	432	ret=add_lock_callback(pointer,amount,type,file,line);
d02b48c6 RE	433	#ifdef LOCK_DEBUG
	434	fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
	435	CRYPTO_thread_id(),
	436	before,amount,ret,
	437	CRYPTO_get_lock_name(type),
	438	file,line);
	439	#endif
d02b48c6 RE	440	}
	441	else
	442	{
	443	CRYPTO_lock(CRYPTO_LOCK\|CRYPTO_WRITE,type,file,line);
	444
	445	ret= *pointer+amount;
	446	#ifdef LOCK_DEBUG
	447	fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
	448	CRYPTO_thread_id(),
	449	*pointer,amount,ret,
	450	CRYPTO_get_lock_name(type),
	451	file,line);
	452	#endif
	453	*pointer=ret;
	454	CRYPTO_lock(CRYPTO_UNLOCK\|CRYPTO_WRITE,type,file,line);
	455	}
	456	return(ret);
	457	}
	458
6b691a5c	459	const char *CRYPTO_get_lock_name(int type)
d02b48c6	460	{
58964a49	461	if (type < 0)
c7922304	462	return("dynamic");
58964a49 RE	463	else if (type < CRYPTO_NUM_LOCKS)
	464	return(lock_names[type]);
	465	else if (type-CRYPTO_NUM_LOCKS >= sk_num(app_locks))
d02b48c6	466	return("ERROR");
58964a49 RE	467	else
58964a49 RE	468	return(sk_value(app_locks,type-CRYPTO_NUM_LOCKS));
d02b48c6 RE	469	}
	470
	471	#ifdef _DLL
bc36ee62	472	#ifdef OPENSSL_SYS_WIN32
d02b48c6 RE	473
	474	/* All we really need to do is remove the 'error' state when a thread
	475	* detaches */
	476
6b691a5c UM	477	BOOL WINAPI DLLEntryPoint(HINSTANCE hinstDLL, DWORD fdwReason,
6b691a5c UM	478	LPVOID lpvReserved)
d02b48c6 RE	479	{
	480	switch(fdwReason)
	481	{
	482	case DLL_PROCESS_ATTACH:
	483	break;
	484	case DLL_THREAD_ATTACH:
	485	break;
	486	case DLL_THREAD_DETACH:
	487	ERR_remove_state(0);
	488	break;
	489	case DLL_PROCESS_DETACH:
	490	break;
	491	}
	492	return(TRUE);
	493	}
	494	#endif
	495
	496	#endif