sl@0: /* crypto/mem_dbg.c */
sl@0: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * This package is an SSL implementation written
sl@0:  * by Eric Young (eay@cryptsoft.com).
sl@0:  * The implementation was written so as to conform with Netscapes SSL.
sl@0:  * 
sl@0:  * This library is free for commercial and non-commercial use as long as
sl@0:  * the following conditions are aheared to.  The following conditions
sl@0:  * apply to all code found in this distribution, be it the RC4, RSA,
sl@0:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
sl@0:  * included with this distribution is covered by the same copyright terms
sl@0:  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
sl@0:  * 
sl@0:  * Copyright remains Eric Young's, and as such any Copyright notices in
sl@0:  * the code are not to be removed.
sl@0:  * If this package is used in a product, Eric Young should be given attribution
sl@0:  * as the author of the parts of the library used.
sl@0:  * This can be in the form of a textual message at program startup or
sl@0:  * in documentation (online or textual) provided with the package.
sl@0:  * 
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  * 1. Redistributions of source code must retain the copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  * 3. All advertising materials mentioning features or use of this software
sl@0:  *    must display the following acknowledgement:
sl@0:  *    "This product includes cryptographic software written by
sl@0:  *     Eric Young (eay@cryptsoft.com)"
sl@0:  *    The word 'cryptographic' can be left out if the rouines from the library
sl@0:  *    being used are not cryptographic related :-).
sl@0:  * 4. If you include any Windows specific code (or a derivative thereof) from 
sl@0:  *    the apps directory (application code) you must include an acknowledgement:
sl@0:  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
sl@0:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
sl@0:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
sl@0:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
sl@0:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
sl@0:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
sl@0:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
sl@0:  * SUCH DAMAGE.
sl@0:  * 
sl@0:  * The licence and distribution terms for any publically available version or
sl@0:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
sl@0:  * copied and put under another distribution licence
sl@0:  * [including the GNU Public Licence.]
sl@0:  */
sl@0: /*
sl@0:  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
sl@0:  */
sl@0: 
sl@0: #include <stdio.h>
sl@0: #include <stdlib.h>
sl@0: #include <time.h>	
sl@0: #include "cryptlib.h"
sl@0: #include <openssl/crypto.h>
sl@0: #include <openssl/buffer.h>
sl@0: #include <openssl/bio.h>
sl@0: #include <openssl/lhash.h>
sl@0: 
sl@0: #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
sl@0: #include "libcrypto_wsd_macros.h"
sl@0: #include "libcrypto_wsd.h"
sl@0: #endif
sl@0: 
sl@0: #ifndef EMULATOR
sl@0: static int mh_mode=CRYPTO_MEM_CHECK_OFF;
sl@0: /* The state changes to CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE
sl@0:  * when the application asks for it (usually after library initialisation
sl@0:  * for which no book-keeping is desired).
sl@0:  *
sl@0:  * State CRYPTO_MEM_CHECK_ON exists only temporarily when the library
sl@0:  * thinks that certain allocations should not be checked (e.g. the data
sl@0:  * structures used for memory checking).  It is not suitable as an initial
sl@0:  * state: the library will unexpectedly enable memory checking when it
sl@0:  * executes one of those sections that want to disable checking
sl@0:  * temporarily.
sl@0:  *
sl@0:  * State CRYPTO_MEM_CHECK_ENABLE without ..._ON makes no sense whatsoever.
sl@0:  */
sl@0: 
sl@0: static unsigned long order = 0; /* number of memory requests */
sl@0: static LHASH *mh=NULL; /* hash-table of memory requests (address as key);
sl@0:                        * access requires MALLOC2 lock */
sl@0:                    
sl@0: 
sl@0: #endif                        
sl@0: 
sl@0: 
sl@0: typedef struct app_mem_info_st
sl@0: /* For application-defined information (static C-string `info')
sl@0:  * to be displayed in memory leak list.
sl@0:  * Each thread has its own stack.  For applications, there is
sl@0:  *   CRYPTO_push_info("...")     to push an entry,
sl@0:  *   CRYPTO_pop_info()           to pop an entry,
sl@0:  *   CRYPTO_remove_all_info()    to pop all entries.
sl@0:  */
sl@0: 	{	
sl@0: 	unsigned long thread;
sl@0: 	const char *file;
sl@0: 	int line;
sl@0: 	const char *info;
sl@0: 	struct app_mem_info_st *next; /* tail of thread's stack */
sl@0: 	int references;
sl@0: 	} APP_INFO;
sl@0: 
sl@0: static void app_info_free(APP_INFO *);
sl@0: 
sl@0: #ifndef EMULATOR
sl@0: static LHASH *amih=NULL; /* hash-table with those app_mem_info_st's
sl@0:                           * that are at the top of their thread's stack
sl@0:                           * (with `thread' as key);
sl@0:                           * access requires MALLOC2 lock */
sl@0: #else
sl@0:  GET_STATIC_VAR_FROM_TLS(amih,mem_dbg,LHASH *)
sl@0:  #define amih (*GET_WSD_VAR_NAME(amih,mem_dbg,s)())
sl@0: #endif                           
sl@0: 
sl@0: typedef struct mem_st
sl@0: /* memory-block description */
sl@0: 	{
sl@0: 	void *addr;
sl@0: 	int num;
sl@0: 	const char *file;
sl@0: 	int line;
sl@0: 	unsigned long thread;
sl@0: 	unsigned long iorder;
sl@0: 	time_t time;
sl@0: 	APP_INFO *app_info;
sl@0: 	} MEM;
sl@0: 
sl@0: 
sl@0: 
sl@0: #ifdef EMULATOR
sl@0:  GET_STATIC_VAR_FROM_TLS(mh_mode,mem_dbg,int)
sl@0:  #define mh_mode (*GET_WSD_VAR_NAME(mh_mode,mem_dbg,s)())
sl@0:  GET_STATIC_VAR_FROM_TLS(order,mem_dbg,unsigned long)
sl@0:  #define order (*GET_WSD_VAR_NAME(order,mem_dbg,s)())
sl@0:  GET_STATIC_VAR_FROM_TLS(mh,mem_dbg,LHASH*)
sl@0:  #define mh (*GET_WSD_VAR_NAME(mh,mem_dbg,s)())
sl@0: #endif 
sl@0: 
sl@0: #ifndef EMULATOR
sl@0: static long options =             /* extra information to be recorded */
sl@0: #if defined(CRYPTO_MDEBUG_TIME) || defined(CRYPTO_MDEBUG_ALL)
sl@0: 	V_CRYPTO_MDEBUG_TIME |
sl@0: #endif
sl@0: #if defined(CRYPTO_MDEBUG_THREAD) || defined(CRYPTO_MDEBUG_ALL)
sl@0: 	V_CRYPTO_MDEBUG_THREAD |
sl@0: #endif
sl@0: 	0;
sl@0: static unsigned int num_disable = 0; /* num_disable > 0
sl@0:                                       *     iff
sl@0:                                       * mh_mode == CRYPTO_MEM_CHECK_ON (w/o ..._ENABLE)
sl@0:                                       */
sl@0: static unsigned long disabling_thread = 0; /* Valid iff num_disable > 0.
sl@0:                                             * CRYPTO_LOCK_MALLOC2 is locked
sl@0:                                             * exactly in this case (by the
sl@0:                                             * thread named in disabling_thread).
sl@0:                                             */
sl@0: 
sl@0: #else
sl@0:  GET_STATIC_VAR_FROM_TLS(options,mem_dbg,unsigned long)
sl@0:  #define options (*GET_WSD_VAR_NAME(options,mem_dbg,s)())
sl@0:  GET_STATIC_VAR_FROM_TLS(num_disable,mem_dbg,unsigned int)
sl@0:  #define num_disable (*GET_WSD_VAR_NAME(num_disable,mem_dbg,s)())
sl@0:  GET_STATIC_VAR_FROM_TLS(disabling_thread,mem_dbg,unsigned long)
sl@0:  #define disabling_thread (*GET_WSD_VAR_NAME(disabling_thread,mem_dbg,s)())
sl@0: #endif	
sl@0: 
sl@0: 
sl@0: 
sl@0: static void app_info_free(APP_INFO *inf)
sl@0: 	{
sl@0: 	if (--(inf->references) <= 0)
sl@0: 		{
sl@0: 		if (inf->next != NULL)
sl@0: 			{
sl@0: 			app_info_free(inf->next);
sl@0: 			}
sl@0: 		OPENSSL_free(inf);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int CRYPTO_mem_ctrl(int mode)
sl@0: 	{
sl@0: 	int ret=mh_mode;
sl@0: 
sl@0: 	CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
sl@0: 	switch (mode)
sl@0: 		{
sl@0: 	/* for applications (not to be called while multiple threads
sl@0: 	 * use the library): */
sl@0: 	case CRYPTO_MEM_CHECK_ON: /* aka MemCheck_start() */
sl@0: 		mh_mode = CRYPTO_MEM_CHECK_ON|CRYPTO_MEM_CHECK_ENABLE;
sl@0: 		num_disable = 0;
sl@0: 		break;
sl@0: 	case CRYPTO_MEM_CHECK_OFF: /* aka MemCheck_stop() */
sl@0: 		mh_mode = 0;
sl@0: 		num_disable = 0; /* should be true *before* MemCheck_stop is used,
sl@0: 		                    or there'll be a lot of confusion */
sl@0: 		break;
sl@0: 
sl@0: 	/* switch off temporarily (for library-internal use): */
sl@0: 	case CRYPTO_MEM_CHECK_DISABLE: /* aka MemCheck_off() */
sl@0: 		if (mh_mode & CRYPTO_MEM_CHECK_ON)
sl@0: 			{
sl@0: 			if (!num_disable || (disabling_thread != CRYPTO_thread_id())) /* otherwise we already have the MALLOC2 lock */
sl@0: 				{
sl@0: 				/* Long-time lock CRYPTO_LOCK_MALLOC2 must not be claimed while
sl@0: 				 * we're holding CRYPTO_LOCK_MALLOC, or we'll deadlock if
sl@0: 				 * somebody else holds CRYPTO_LOCK_MALLOC2 (and cannot release
sl@0: 				 * it because we block entry to this function).
sl@0: 				 * Give them a chance, first, and then claim the locks in
sl@0: 				 * appropriate order (long-time lock first).
sl@0: 				 */
sl@0: 				CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
sl@0: 				/* Note that after we have waited for CRYPTO_LOCK_MALLOC2
sl@0: 				 * and CRYPTO_LOCK_MALLOC, we'll still be in the right
sl@0: 				 * "case" and "if" branch because MemCheck_start and
sl@0: 				 * MemCheck_stop may never be used while there are multiple
sl@0: 				 * OpenSSL threads. */
sl@0: 				CRYPTO_w_lock(CRYPTO_LOCK_MALLOC2);
sl@0: 				CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
sl@0: 				mh_mode &= ~CRYPTO_MEM_CHECK_ENABLE;
sl@0: 				disabling_thread=CRYPTO_thread_id();
sl@0: 				}
sl@0: 			num_disable++;
sl@0: 			}
sl@0: 		break;
sl@0: 	case CRYPTO_MEM_CHECK_ENABLE: /* aka MemCheck_on() */
sl@0: 		if (mh_mode & CRYPTO_MEM_CHECK_ON)
sl@0: 			{
sl@0: 			if (num_disable) /* always true, or something is going wrong */
sl@0: 				{
sl@0: 				num_disable--;
sl@0: 				if (num_disable == 0)
sl@0: 					{
sl@0: 					mh_mode|=CRYPTO_MEM_CHECK_ENABLE;
sl@0: 					CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC2);
sl@0: 					}
sl@0: 				}
sl@0: 			}
sl@0: 		break;
sl@0: 
sl@0: 	default:
sl@0: 		break;
sl@0: 		}
sl@0: 	CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int CRYPTO_is_mem_check_on(void)
sl@0: 	{
sl@0: 	int ret = 0;
sl@0: 
sl@0: 	if (mh_mode & CRYPTO_MEM_CHECK_ON)
sl@0: 		{
sl@0: 		CRYPTO_r_lock(CRYPTO_LOCK_MALLOC);
sl@0: 
sl@0: 		ret = (mh_mode & CRYPTO_MEM_CHECK_ENABLE)
sl@0: 			|| (disabling_thread != CRYPTO_thread_id());
sl@0: 
sl@0: 		CRYPTO_r_unlock(CRYPTO_LOCK_MALLOC);
sl@0: 		}
sl@0: 	return(ret);
sl@0: 	}	
sl@0: 
sl@0: 
sl@0: EXPORT_C void CRYPTO_dbg_set_options(long bits)
sl@0: 	{
sl@0: 	options = bits;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C long CRYPTO_dbg_get_options(void)
sl@0: 	{
sl@0: 	return options;
sl@0: 	}
sl@0: 
sl@0: /* static int mem_cmp(MEM *a, MEM *b) */
sl@0: static int mem_cmp(const void *a_void, const void *b_void)
sl@0: 	{
sl@0: #ifdef _WIN64
sl@0: 	const char *a=(const char *)((const MEM *)a_void)->addr,
sl@0: 		   *b=(const char *)((const MEM *)b_void)->addr;
sl@0: 	if (a==b)	return 0;
sl@0: 	else if (a>b)	return 1;
sl@0: 	else		return -1;
sl@0: #else
sl@0: 	return((const char *)((const MEM *)a_void)->addr
sl@0: 		- (const char *)((const MEM *)b_void)->addr);
sl@0: #endif
sl@0: 	}
sl@0: 
sl@0: /* static unsigned long mem_hash(MEM *a) */
sl@0: static unsigned long mem_hash(const void *a_void)
sl@0: 	{
sl@0: 	unsigned long ret;
sl@0: 
sl@0: 	ret=(unsigned long)((const MEM *)a_void)->addr;
sl@0: 
sl@0: 	ret=ret*17851+(ret>>14)*7+(ret>>4)*251;
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: /* static int app_info_cmp(APP_INFO *a, APP_INFO *b) */
sl@0: static int app_info_cmp(const void *a_void, const void *b_void)
sl@0: 	{
sl@0: 	return(((const APP_INFO *)a_void)->thread
sl@0: 		!= ((const APP_INFO *)b_void)->thread);
sl@0: 	}
sl@0: 
sl@0: /* static unsigned long app_info_hash(APP_INFO *a) */
sl@0: static unsigned long app_info_hash(const void *a_void)
sl@0: 	{
sl@0: 	unsigned long ret;
sl@0: 
sl@0: 	ret=(unsigned long)((const APP_INFO *)a_void)->thread;
sl@0: 
sl@0: 	ret=ret*17851+(ret>>14)*7+(ret>>4)*251;
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: static APP_INFO *pop_info(void)
sl@0: 	{
sl@0: 	APP_INFO tmp;
sl@0: 	APP_INFO *ret = NULL;
sl@0: 
sl@0: 	if (amih != NULL)
sl@0: 		{
sl@0: 		tmp.thread=CRYPTO_thread_id();
sl@0: 		if ((ret=(APP_INFO *)lh_delete(amih,&tmp)) != NULL)
sl@0: 			{
sl@0: 			APP_INFO *next=ret->next;
sl@0: 
sl@0: 			if (next != NULL)
sl@0: 				{
sl@0: 				next->references++;
sl@0: 				lh_insert(amih,(char *)next);
sl@0: 				}
sl@0: #ifdef LEVITTE_DEBUG_MEM
sl@0: 			if (ret->thread != tmp.thread)
sl@0: 				{
sl@0: 				fprintf(stderr, "pop_info(): deleted info has other thread ID (%lu) than the current thread (%lu)!!!!\n",
sl@0: 					ret->thread, tmp.thread);
sl@0: 				abort();
sl@0: 				}
sl@0: #endif
sl@0: 			if (--(ret->references) <= 0)
sl@0: 				{
sl@0: 				ret->next = NULL;
sl@0: 				if (next != NULL)
sl@0: 					next->references--;
sl@0: 				OPENSSL_free(ret);
sl@0: 				}
sl@0: 			}
sl@0: 		}
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int CRYPTO_push_info_(const char *info, const char *file, int line)
sl@0: 	{
sl@0: 	APP_INFO *ami=NULL, *amim=NULL;
sl@0: 	int ret=0;
sl@0: 
sl@0: 	if (is_MemCheck_on())
sl@0: 		{
sl@0: 		MemCheck_off(); /* obtain MALLOC2 lock */
sl@0: 
sl@0: 		if ((ami = (APP_INFO *)OPENSSL_malloc(sizeof(APP_INFO))) == NULL)
sl@0: 			{
sl@0: 			ret=0;
sl@0: 			goto err;
sl@0: 			}
sl@0: 		if (amih == NULL)
sl@0: 			{
sl@0: 			if ((amih=lh_new(app_info_hash, app_info_cmp)) == NULL)
sl@0: 				{
sl@0: 				OPENSSL_free(ami);
sl@0: 				ret=0;
sl@0: 				goto err;
sl@0: 				}
sl@0: 			}
sl@0: 
sl@0: 		ami->thread=CRYPTO_thread_id();
sl@0: 		ami->file=file;
sl@0: 		ami->line=line;
sl@0: 		ami->info=info;
sl@0: 		ami->references=1;
sl@0: 		ami->next=NULL;
sl@0: 
sl@0: 		if ((amim=(APP_INFO *)lh_insert(amih,(char *)ami)) != NULL)
sl@0: 			{
sl@0: #ifdef LEVITTE_DEBUG_MEM
sl@0: 			if (ami->thread != amim->thread)
sl@0: 				{
sl@0: 				fprintf(stderr, "CRYPTO_push_info(): previous info has other thread ID (%lu) than the current thread (%lu)!!!!\n",
sl@0: 					amim->thread, ami->thread);
sl@0: 				abort();
sl@0: 				}
sl@0: #endif
sl@0: 			ami->next=amim;
sl@0: 			}
sl@0:  err:
sl@0: 		MemCheck_on(); /* release MALLOC2 lock */
sl@0: 		}
sl@0: 
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int CRYPTO_pop_info(void)
sl@0: 	{
sl@0: 	int ret=0;
sl@0: 
sl@0: 	if (is_MemCheck_on()) /* _must_ be true, or something went severely wrong */
sl@0: 		{
sl@0: 		MemCheck_off(); /* obtain MALLOC2 lock */
sl@0: 
sl@0: 		ret=(pop_info() != NULL);
sl@0: 
sl@0: 		MemCheck_on(); /* release MALLOC2 lock */
sl@0: 		}
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int CRYPTO_remove_all_info(void)
sl@0: 	{
sl@0: 	int ret=0;
sl@0: 
sl@0: 	if (is_MemCheck_on()) /* _must_ be true */
sl@0: 		{
sl@0: 		MemCheck_off(); /* obtain MALLOC2 lock */
sl@0: 
sl@0: 		while(pop_info() != NULL)
sl@0: 			ret++;
sl@0: 
sl@0: 		MemCheck_on(); /* release MALLOC2 lock */
sl@0: 		}
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: #ifndef EMULATOR
sl@0: static unsigned long break_order_num=0;
sl@0: #else
sl@0: static const unsigned long break_order_num=0;
sl@0: #endif
sl@0: EXPORT_C void CRYPTO_dbg_malloc(void *addr, int num, const char *file, int line,
sl@0: 	int before_p)
sl@0: 	{
sl@0: 	MEM *m=NULL,*mm=NULL;
sl@0: 	APP_INFO tmp,*amim=NULL;
sl@0: 
sl@0: 	switch(before_p & 127)
sl@0: 		{
sl@0: 	case 0:
sl@0: 		break;
sl@0: 	case 1:
sl@0: 		if (addr == NULL)
sl@0: 			break;
sl@0: 
sl@0: 		if (is_MemCheck_on())
sl@0: 			{
sl@0: 			MemCheck_off(); /* make sure we hold MALLOC2 lock */
sl@0: 			if ((m=(MEM *)OPENSSL_malloc(sizeof(MEM))) == NULL)
sl@0: 				{
sl@0: 				OPENSSL_free(addr);
sl@0: 				MemCheck_on(); /* release MALLOC2 lock
sl@0: 				                * if num_disabled drops to 0 */
sl@0: 				return;
sl@0: 				}
sl@0: 			if (mh == NULL)
sl@0: 				{
sl@0: 				if ((mh=lh_new(mem_hash, mem_cmp)) == NULL)
sl@0: 					{
sl@0: 					OPENSSL_free(addr);
sl@0: 					OPENSSL_free(m);
sl@0: 					addr=NULL;
sl@0: 					goto err;
sl@0: 					}
sl@0: 				}
sl@0: 
sl@0: 			m->addr=addr;
sl@0: 			m->file=file;
sl@0: 			m->line=line;
sl@0: 			m->num=num;
sl@0: 			if (options & V_CRYPTO_MDEBUG_THREAD)
sl@0: 				m->thread=CRYPTO_thread_id();
sl@0: 			else
sl@0: 				m->thread=0;
sl@0: 
sl@0: 			if (order == break_order_num)
sl@0: 				{
sl@0: 				/* BREAK HERE */
sl@0: 				m->iorder=order;
sl@0: 				}
sl@0: 			m->iorder=order++;
sl@0: #ifdef LEVITTE_DEBUG_MEM
sl@0: 			fprintf(stderr, "LEVITTE_DEBUG_MEM: [%5d] %c 0x%p (%d)\n",
sl@0: 				m->iorder,
sl@0: 				(before_p & 128) ? '*' : '+',
sl@0: 				m->addr, m->num);
sl@0: #endif
sl@0: 			if (options & V_CRYPTO_MDEBUG_TIME)
sl@0: 				m->time=time(NULL);
sl@0: 			else
sl@0: 				m->time=0;
sl@0: 
sl@0: 			tmp.thread=CRYPTO_thread_id();
sl@0: 			m->app_info=NULL;
sl@0: 			if (amih != NULL
sl@0: 				&& (amim=(APP_INFO *)lh_retrieve(amih,(char *)&tmp)) != NULL)
sl@0: 				{
sl@0: 				m->app_info = amim;
sl@0: 				amim->references++;
sl@0: 				}
sl@0: 
sl@0: 			if ((mm=(MEM *)lh_insert(mh,(char *)m)) != NULL)
sl@0: 				{
sl@0: 				/* Not good, but don't sweat it */
sl@0: 				if (mm->app_info != NULL)
sl@0: 					{
sl@0: 					mm->app_info->references--;
sl@0: 					}
sl@0: 				OPENSSL_free(mm);
sl@0: 				}
sl@0: 		err:
sl@0: 			MemCheck_on(); /* release MALLOC2 lock
sl@0: 			                * if num_disabled drops to 0 */
sl@0: 			}
sl@0: 		break;
sl@0: 		}
sl@0: 	return;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void CRYPTO_dbg_free(void *addr, int before_p)
sl@0: 	{
sl@0: 	MEM m,*mp=NULL;
sl@0: 
sl@0: 	switch(before_p)
sl@0: 		{
sl@0: 	case 0:
sl@0: 		if (addr == NULL)
sl@0: 			break;
sl@0: 
sl@0: 		if (is_MemCheck_on() && (mh != NULL))
sl@0: 			{
sl@0: 			MemCheck_off(); /* make sure we hold MALLOC2 lock */
sl@0: 
sl@0: 			m.addr=addr;
sl@0: 			mp=(MEM *)lh_delete(mh,(char *)&m);
sl@0: 			if (mp != NULL)
sl@0: 				{
sl@0: #ifdef LEVITTE_DEBUG_MEM
sl@0: 			fprintf(stderr, "LEVITTE_DEBUG_MEM: [%5d] - 0x%p (%d)\n",
sl@0: 				mp->order, mp->addr, mp->num);
sl@0: #endif
sl@0: 				if (mp->app_info != NULL)
sl@0: 					app_info_free(mp->app_info);
sl@0: 				OPENSSL_free(mp);
sl@0: 				}
sl@0: 
sl@0: 			MemCheck_on(); /* release MALLOC2 lock
sl@0: 			                * if num_disabled drops to 0 */
sl@0: 			}
sl@0: 		break;
sl@0: 	case 1:
sl@0: 		break;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void CRYPTO_dbg_realloc(void *addr1, void *addr2, int num,
sl@0: 	const char *file, int line, int before_p)
sl@0: 	{
sl@0: 	MEM m,*mp;
sl@0: 
sl@0: #ifdef LEVITTE_DEBUG_MEM
sl@0: 	fprintf(stderr, "LEVITTE_DEBUG_MEM: --> CRYPTO_dbg_malloc(addr1 = %p, addr2 = %p, num = %d, file = \"%s\", line = %d, before_p = %d)\n",
sl@0: 		addr1, addr2, num, file, line, before_p);
sl@0: #endif
sl@0: 
sl@0: 	switch(before_p)
sl@0: 		{
sl@0: 	case 0:
sl@0: 		break;
sl@0: 	case 1:
sl@0: 		if (addr2 == NULL)
sl@0: 			break;
sl@0: 
sl@0: 		if (addr1 == NULL)
sl@0: 			{
sl@0: 			CRYPTO_dbg_malloc(addr2, num, file, line, 128 | before_p);
sl@0: 			break;
sl@0: 			}
sl@0: 
sl@0: 		if (is_MemCheck_on())
sl@0: 			{
sl@0: 			MemCheck_off(); /* make sure we hold MALLOC2 lock */
sl@0: 
sl@0: 			m.addr=addr1;
sl@0: 			mp=(MEM *)lh_delete(mh,(char *)&m);
sl@0: 			if (mp != NULL)
sl@0: 				{
sl@0: #ifdef LEVITTE_DEBUG_MEM
sl@0: 				fprintf(stderr, "LEVITTE_DEBUG_MEM: [%5d] * 0x%p (%d) -> 0x%p (%d)\n",
sl@0: 					mp->order,
sl@0: 					mp->addr, mp->num,
sl@0: 					addr2, num);
sl@0: #endif
sl@0: 				mp->addr=addr2;
sl@0: 				mp->num=num;
sl@0: 				lh_insert(mh,(char *)mp);
sl@0: 				}
sl@0: 
sl@0: 			MemCheck_on(); /* release MALLOC2 lock
sl@0: 			                * if num_disabled drops to 0 */
sl@0: 			}
sl@0: 		break;
sl@0: 		}
sl@0: 	return;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: typedef struct mem_leak_st
sl@0: 	{
sl@0: 	BIO *bio;
sl@0: 	int chunks;
sl@0: 	long bytes;
sl@0: 	} MEM_LEAK;
sl@0: 
sl@0: static void print_leak(const MEM *m, MEM_LEAK *l)
sl@0: 	{
sl@0: #ifndef SYMBIAN		
sl@0: 	char buf[1024];
sl@0: #else
sl@0:   char buf[512];
sl@0: #endif	
sl@0: 	char *bufp = buf;
sl@0: 	APP_INFO *amip;
sl@0: 	int ami_cnt;
sl@0: 	struct tm *lcl = NULL;
sl@0: 	unsigned long ti;
sl@0: 
sl@0: #define BUF_REMAIN (sizeof buf - (size_t)(bufp - buf))
sl@0: 
sl@0: 	if(m->addr == (char *)l->bio)
sl@0: 	    return;
sl@0: 
sl@0: 	if (options & V_CRYPTO_MDEBUG_TIME)
sl@0: 		{
sl@0: 		lcl = localtime(&m->time);
sl@0: 	
sl@0: 		BIO_snprintf(bufp, BUF_REMAIN, "[%02d:%02d:%02d] ",
sl@0: 			lcl->tm_hour,lcl->tm_min,lcl->tm_sec);
sl@0: 		bufp += strlen(bufp);
sl@0: 		}
sl@0: 
sl@0: 	BIO_snprintf(bufp, BUF_REMAIN, "%5lu file=%s, line=%d, ",
sl@0: 		m->iorder,m->file,m->line);
sl@0: 	bufp += strlen(bufp);
sl@0: 
sl@0: 	if (options & V_CRYPTO_MDEBUG_THREAD)
sl@0: 		{
sl@0: 		BIO_snprintf(bufp, BUF_REMAIN, "thread=%lu, ", m->thread);
sl@0: 		bufp += strlen(bufp);
sl@0: 		}
sl@0: 
sl@0: 	BIO_snprintf(bufp, BUF_REMAIN, "number=%d, address=%08lX\n",
sl@0: 		m->num,(unsigned long)m->addr);
sl@0: 	bufp += strlen(bufp);
sl@0: 
sl@0: 	BIO_puts(l->bio,buf);
sl@0: 	
sl@0: 	l->chunks++;
sl@0: 	l->bytes+=m->num;
sl@0: 
sl@0: 	amip=m->app_info;
sl@0: 	ami_cnt=0;
sl@0: 	if (!amip)
sl@0: 		return;
sl@0: 	ti=amip->thread;
sl@0: 	
sl@0: 	do
sl@0: 		{
sl@0: 		int buf_len;
sl@0: 		int info_len;
sl@0: 
sl@0: 		ami_cnt++;
sl@0: 		memset(buf,'>',ami_cnt);
sl@0: 		BIO_snprintf(buf + ami_cnt, sizeof buf - ami_cnt,
sl@0: 			" thread=%lu, file=%s, line=%d, info=\"",
sl@0: 			amip->thread, amip->file, amip->line);
sl@0: 		buf_len=strlen(buf);
sl@0: 		info_len=strlen(amip->info);
sl@0: 		if (128 - buf_len - 3 < info_len)
sl@0: 			{
sl@0: 			memcpy(buf + buf_len, amip->info, 128 - buf_len - 3);
sl@0: 			buf_len = 128 - 3;
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			BUF_strlcpy(buf + buf_len, amip->info,
sl@0: 				    sizeof buf - buf_len);
sl@0: 			buf_len = strlen(buf);
sl@0: 			}
sl@0: 		BIO_snprintf(buf + buf_len, sizeof buf - buf_len, "\"\n");
sl@0: 		
sl@0: 		BIO_puts(l->bio,buf);
sl@0: 
sl@0: 		amip = amip->next;
sl@0: 		}
sl@0: 	while(amip && amip->thread == ti);
sl@0: 		
sl@0: #ifdef LEVITTE_DEBUG_MEM
sl@0: 	if (amip)
sl@0: 		{
sl@0: 		fprintf(stderr, "Thread switch detected in backtrace!!!!\n");
sl@0: 		abort();
sl@0: 		}
sl@0: #endif
sl@0: 	}
sl@0: 
sl@0: static IMPLEMENT_LHASH_DOALL_ARG_FN(print_leak, const MEM *, MEM_LEAK *)
sl@0: 
sl@0: EXPORT_C void CRYPTO_mem_leaks(BIO *b)
sl@0: 	{
sl@0: 	MEM_LEAK ml;
sl@0: 
sl@0: 	if (mh == NULL && amih == NULL)
sl@0: 		return;
sl@0: 
sl@0: 	MemCheck_off(); /* obtain MALLOC2 lock */
sl@0: 
sl@0: 	ml.bio=b;
sl@0: 	ml.bytes=0;
sl@0: 	ml.chunks=0;
sl@0: 	if (mh != NULL)
sl@0: 		lh_doall_arg(mh, LHASH_DOALL_ARG_FN(print_leak),
sl@0: 				(char *)&ml);
sl@0: 	if (ml.chunks != 0)
sl@0: 		{
sl@0: 		BIO_printf(b,"%ld bytes leaked in %d chunks\n",
sl@0: 			   ml.bytes,ml.chunks);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		/* Make sure that, if we found no leaks, memory-leak debugging itself
sl@0: 		 * does not introduce memory leaks (which might irritate
sl@0: 		 * external debugging tools).
sl@0: 		 * (When someone enables leak checking, but does not call
sl@0: 		 * this function, we declare it to be their fault.)
sl@0: 		 *
sl@0: 		 * XXX    This should be in CRYPTO_mem_leaks_cb,
sl@0: 		 * and CRYPTO_mem_leaks should be implemented by
sl@0: 		 * using CRYPTO_mem_leaks_cb.
sl@0: 		 * (Also their should be a variant of lh_doall_arg
sl@0: 		 * that takes a function pointer instead of a void *;
sl@0: 		 * this would obviate the ugly and illegal
sl@0: 		 * void_fn_to_char kludge in CRYPTO_mem_leaks_cb.
sl@0: 		 * Otherwise the code police will come and get us.)
sl@0: 		 */
sl@0: 		int old_mh_mode;
sl@0: 
sl@0: 		CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
sl@0: 
sl@0: 		/* avoid deadlock when lh_free() uses CRYPTO_dbg_free(),
sl@0: 		 * which uses CRYPTO_is_mem_check_on */
sl@0: 		old_mh_mode = mh_mode;
sl@0: 		mh_mode = CRYPTO_MEM_CHECK_OFF;
sl@0: 
sl@0: 		if (mh != NULL)
sl@0: 			{
sl@0: 			lh_free(mh);
sl@0: 			mh = NULL;
sl@0: 			}
sl@0: 		if (amih != NULL)
sl@0: 			{
sl@0: 			if (lh_num_items(amih) == 0) 
sl@0: 				{
sl@0: 				lh_free(amih);
sl@0: 				amih = NULL;
sl@0: 				}
sl@0: 			}
sl@0: 
sl@0: 		mh_mode = old_mh_mode;
sl@0: 		CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
sl@0: 		}
sl@0: 	MemCheck_on(); /* release MALLOC2 lock */
sl@0: 	}
sl@0: 
sl@0: #ifndef OPENSSL_NO_FP_API
sl@0: EXPORT_C void CRYPTO_mem_leaks_fp(FILE *fp)
sl@0: 	{
sl@0: 	BIO *b=NULL;
sl@0: 
sl@0: 	if (mh == NULL) return;
sl@0: 	/* Need to turn off memory checking when allocated BIOs ... especially
sl@0: 	 * as we're creating them at a time when we're trying to check we've not
sl@0: 	 * left anything un-free()'d!! */
sl@0: 	MemCheck_off();
sl@0: 	b = BIO_new(BIO_s_file());
sl@0: 	MemCheck_on();
sl@0: 	if(!b) return;
sl@0: 	BIO_set_fp(b,fp,BIO_NOCLOSE);
sl@0: 	CRYPTO_mem_leaks(b);
sl@0: 	BIO_free(b);
sl@0: 	}
sl@0: #endif
sl@0: 
sl@0: 
sl@0: 
sl@0: /* FIXME: We really don't allow much to the callback.  For example, it has
sl@0:    no chance of reaching the info stack for the item it processes.  Should
sl@0:    it really be this way?  -- Richard Levitte */
sl@0: /* NB: The prototypes have been typedef'd to CRYPTO_MEM_LEAK_CB inside crypto.h
sl@0:  * If this code is restructured, remove the callback type if it is no longer
sl@0:  * needed. -- Geoff Thorpe */
sl@0: static void cb_leak(const MEM *m, CRYPTO_MEM_LEAK_CB **cb)
sl@0: 	{
sl@0: 	(**cb)(m->iorder,m->file,m->line,m->num,m->addr);
sl@0: 	}
sl@0: 
sl@0: static IMPLEMENT_LHASH_DOALL_ARG_FN(cb_leak, const MEM *, CRYPTO_MEM_LEAK_CB **)
sl@0: 
sl@0: EXPORT_C void CRYPTO_mem_leaks_cb(CRYPTO_MEM_LEAK_CB *cb)
sl@0: 	{
sl@0: 	if (mh == NULL) return;
sl@0: 	CRYPTO_w_lock(CRYPTO_LOCK_MALLOC2);
sl@0: 	lh_doall_arg(mh, LHASH_DOALL_ARG_FN(cb_leak), &cb);
sl@0: 	CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC2);
sl@0: 	}