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

/* crypto/mem.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 <stdlib.h>
#include <openssl/crypto.h>
#include "cryptlib.h"


static int allow_customize = 1;      /* we provide flexible functions for */
static int allow_customize_debug = 1;/* exchanging memory-related functions at
                                      * run-time, but this must be done
                                      * before any blocks are actually
                                      * allocated; or we'll run into huge
                                      * problems when malloc/free pairs
                                      * don't match etc. */


/* the following pointers may be changed as long as 'allow_customize' is set */

static void *(*malloc_func)(size_t)         = malloc;
static void *default_malloc_ex(size_t num, const char *file, int line)
	{ return malloc_func(num); }
static void *(*malloc_ex_func)(size_t, const char *file, int line)
        = default_malloc_ex;

static void *(*realloc_func)(void *, size_t)= realloc;
static void *default_realloc_ex(void *str, size_t num,
        const char *file, int line)
	{ return realloc_func(str,num); }
static void *(*realloc_ex_func)(void *, size_t, const char *file, int line)
        = default_realloc_ex;

static void (*free_func)(void *)            = free;

static void *(*malloc_locked_func)(size_t)  = malloc;
static void *default_malloc_locked_ex(size_t num, const char *file, int line)
	{ return malloc_locked_func(num); }
static void *(*malloc_locked_ex_func)(size_t, const char *file, int line)
        = default_malloc_locked_ex;

static void (*free_locked_func)(void *)     = free;


/* may be changed as long as 'allow_customize_debug' is set */
/* XXX use correct function pointer types */
#ifdef CRYPTO_MDEBUG
/* use default functions from mem_dbg.c */
static void (*malloc_debug_func)(void *,int,const char *,int,int)
	= CRYPTO_dbg_malloc;
static void (*realloc_debug_func)(void *,void *,int,const char *,int,int)
	= CRYPTO_dbg_realloc;
static void (*free_debug_func)(void *,int) = CRYPTO_dbg_free;
static void (*set_debug_options_func)(long) = CRYPTO_dbg_set_options;
static long (*get_debug_options_func)(void) = CRYPTO_dbg_get_options;
#else
/* applications can use CRYPTO_malloc_debug_init() to select above case
 * at run-time */
static void (*malloc_debug_func)(void *,int,const char *,int,int) = NULL;
static void (*realloc_debug_func)(void *,void *,int,const char *,int,int)
	= NULL;
static void (*free_debug_func)(void *,int) = NULL;
static void (*set_debug_options_func)(long) = NULL;
static long (*get_debug_options_func)(void) = NULL;
#endif


int CRYPTO_set_mem_functions(void *(*m)(size_t), void *(*r)(void *, size_t),
	void (*f)(void *))
	{
	OPENSSL_init();
	if (!allow_customize)
		return 0;
	if ((m == 0) || (r == 0) || (f == 0))
		return 0;
	malloc_func=m; malloc_ex_func=default_malloc_ex;
	realloc_func=r; realloc_ex_func=default_realloc_ex;
	free_func=f;
	malloc_locked_func=m; malloc_locked_ex_func=default_malloc_locked_ex;
	free_locked_func=f;
	return 1;
	}

int CRYPTO_set_mem_ex_functions(
        void *(*m)(size_t,const char *,int),
        void *(*r)(void *, size_t,const char *,int),
	void (*f)(void *))
	{
	if (!allow_customize)
		return 0;
	if ((m == 0) || (r == 0) || (f == 0))
		return 0;
	malloc_func=0; malloc_ex_func=m;
	realloc_func=0; realloc_ex_func=r;
	free_func=f;
	malloc_locked_func=0; malloc_locked_ex_func=m;
	free_locked_func=f;
	return 1;
	}

int CRYPTO_set_locked_mem_functions(void *(*m)(size_t), void (*f)(void *))
	{
	if (!allow_customize)
		return 0;
	if ((m == NULL) || (f == NULL))
		return 0;
	malloc_locked_func=m; malloc_locked_ex_func=default_malloc_locked_ex;
	free_locked_func=f;
	return 1;
	}

int CRYPTO_set_locked_mem_ex_functions(
        void *(*m)(size_t,const char *,int),
        void (*f)(void *))
	{
	if (!allow_customize)
		return 0;
	if ((m == NULL) || (f == NULL))
		return 0;
	malloc_locked_func=0; malloc_locked_ex_func=m;
	free_func=f;
	return 1;
	}

int CRYPTO_set_mem_debug_functions(void (*m)(void *,int,const char *,int,int),
				   void (*r)(void *,void *,int,const char *,int,int),
				   void (*f)(void *,int),
				   void (*so)(long),
				   long (*go)(void))
	{
	if (!allow_customize_debug)
		return 0;
	OPENSSL_init();
	malloc_debug_func=m;
	realloc_debug_func=r;
	free_debug_func=f;
	set_debug_options_func=so;
	get_debug_options_func=go;
	return 1;
	}


void CRYPTO_get_mem_functions(void *(**m)(size_t), void *(**r)(void *, size_t),
	void (**f)(void *))
	{
	if (m != NULL) *m = (malloc_ex_func == default_malloc_ex) ? 
	                     malloc_func : 0;
	if (r != NULL) *r = (realloc_ex_func == default_realloc_ex) ? 
	                     realloc_func : 0;
	if (f != NULL) *f=free_func;
	}

void CRYPTO_get_mem_ex_functions(
        void *(**m)(size_t,const char *,int),
        void *(**r)(void *, size_t,const char *,int),
	void (**f)(void *))
	{
	if (m != NULL) *m = (malloc_ex_func != default_malloc_ex) ?
	                    malloc_ex_func : 0;
	if (r != NULL) *r = (realloc_ex_func != default_realloc_ex) ?
	                    realloc_ex_func : 0;
	if (f != NULL) *f=free_func;
	}

void CRYPTO_get_locked_mem_functions(void *(**m)(size_t), void (**f)(void *))
	{
	if (m != NULL) *m = (malloc_locked_ex_func == default_malloc_locked_ex) ? 
	                     malloc_locked_func : 0;
	if (f != NULL) *f=free_locked_func;
	}

void CRYPTO_get_locked_mem_ex_functions(
        void *(**m)(size_t,const char *,int),
        void (**f)(void *))
	{
	if (m != NULL) *m = (malloc_locked_ex_func != default_malloc_locked_ex) ?
	                    malloc_locked_ex_func : 0;
	if (f != NULL) *f=free_locked_func;
	}

void CRYPTO_get_mem_debug_functions(void (**m)(void *,int,const char *,int,int),
				    void (**r)(void *,void *,int,const char *,int,int),
				    void (**f)(void *,int),
				    void (**so)(long),
				    long (**go)(void))
	{
	if (m != NULL) *m=malloc_debug_func;
	if (r != NULL) *r=realloc_debug_func;
	if (f != NULL) *f=free_debug_func;
	if (so != NULL) *so=set_debug_options_func;
	if (go != NULL) *go=get_debug_options_func;
	}


void *CRYPTO_malloc_locked(int num, const char *file, int line)
	{
	void *ret = NULL;

	if (num <= 0) return NULL;

	allow_customize = 0;
	if (malloc_debug_func != NULL)
		{
		allow_customize_debug = 0;
		malloc_debug_func(NULL, num, file, line, 0);
		}
	ret = malloc_locked_ex_func(num,file,line);
#ifdef LEVITTE_DEBUG_MEM
	fprintf(stderr, "LEVITTE_DEBUG_MEM:         > 0x%p (%d)\n", ret, num);
#endif
	if (malloc_debug_func != NULL)
		malloc_debug_func(ret, num, file, line, 1);

#ifndef OPENSSL_CPUID_OBJ
        /* Create a dependency on the value of 'cleanse_ctr' so our memory
         * sanitisation function can't be optimised out. NB: We only do
         * this for >2Kb so the overhead doesn't bother us. */
        if(ret && (num > 2048))
	{	extern unsigned char cleanse_ctr;
		((unsigned char *)ret)[0] = cleanse_ctr;
	}
#endif

	return ret;
	}

void CRYPTO_free_locked(void *str)
	{
	if (free_debug_func != NULL)
		free_debug_func(str, 0);
#ifdef LEVITTE_DEBUG_MEM
	fprintf(stderr, "LEVITTE_DEBUG_MEM:         < 0x%p\n", str);
#endif
	free_locked_func(str);
	if (free_debug_func != NULL)
		free_debug_func(NULL, 1);
	}

void *CRYPTO_malloc(int num, const char *file, int line)
	{
	void *ret = NULL;

	if (num <= 0) return NULL;

	allow_customize = 0;
	if (malloc_debug_func != NULL)
		{
		allow_customize_debug = 0;
		malloc_debug_func(NULL, num, file, line, 0);
		}
	ret = malloc_ex_func(num,file,line);
#ifdef LEVITTE_DEBUG_MEM
	fprintf(stderr, "LEVITTE_DEBUG_MEM:         > 0x%p (%d)\n", ret, num);
#endif
	if (malloc_debug_func != NULL)
		malloc_debug_func(ret, num, file, line, 1);

#ifndef OPENSSL_CPUID_OBJ
        /* Create a dependency on the value of 'cleanse_ctr' so our memory
         * sanitisation function can't be optimised out. NB: We only do
         * this for >2Kb so the overhead doesn't bother us. */
        if(ret && (num > 2048))
	{	extern unsigned char cleanse_ctr;
                ((unsigned char *)ret)[0] = cleanse_ctr;
	}
#endif

	return ret;
	}
char *CRYPTO_strdup(const char *str, const char *file, int line)
	{
	char *ret = CRYPTO_malloc(strlen(str)+1, file, line);

	strcpy(ret, str);
	return ret;
	}

void *CRYPTO_realloc(void *str, int num, const char *file, int line)
	{
	void *ret = NULL;

	if (str == NULL)
		return CRYPTO_malloc(num, file, line);

	if (num <= 0) return NULL;

	if (realloc_debug_func != NULL)
		realloc_debug_func(str, NULL, num, file, line, 0);
	ret = realloc_ex_func(str,num,file,line);
#ifdef LEVITTE_DEBUG_MEM
	fprintf(stderr, "LEVITTE_DEBUG_MEM:         | 0x%p -> 0x%p (%d)\n", str, ret, num);
#endif
	if (realloc_debug_func != NULL)
		realloc_debug_func(str, ret, num, file, line, 1);

	return ret;
	}

void *CRYPTO_realloc_clean(void *str, int old_len, int num, const char *file,
			   int line)
	{
	void *ret = NULL;

	if (str == NULL)
		return CRYPTO_malloc(num, file, line);

	if (num <= 0) return NULL;

	/* We don't support shrinking the buffer. Note the memcpy that copies
	 * |old_len| bytes to the new buffer, below. */
	if (num < old_len) return NULL;

	if (realloc_debug_func != NULL)
		realloc_debug_func(str, NULL, num, file, line, 0);
	ret=malloc_ex_func(num,file,line);
	if(ret)
		{
		memcpy(ret,str,old_len);
		OPENSSL_cleanse(str,old_len);
		free_func(str);
		}
#ifdef LEVITTE_DEBUG_MEM
	fprintf(stderr,
		"LEVITTE_DEBUG_MEM:         | 0x%p -> 0x%p (%d)\n",
		str, ret, num);
#endif
	if (realloc_debug_func != NULL)
		realloc_debug_func(str, ret, num, file, line, 1);

	return ret;
	}

void CRYPTO_free(void *str)
	{
	if (free_debug_func != NULL)
		free_debug_func(str, 0);
#ifdef LEVITTE_DEBUG_MEM
	fprintf(stderr, "LEVITTE_DEBUG_MEM:         < 0x%p\n", str);
#endif
	free_func(str);
	if (free_debug_func != NULL)
		free_debug_func(NULL, 1);
	}

void *CRYPTO_remalloc(void *a, int num, const char *file, int line)
	{
	if (a != NULL) OPENSSL_free(a);
	a=(char *)OPENSSL_malloc(num);
	return(a);
	}

void CRYPTO_set_mem_debug_options(long bits)
	{
	if (set_debug_options_func != NULL)
		set_debug_options_func(bits);
	}

long CRYPTO_get_mem_debug_options(void)
	{
	if (get_debug_options_func != NULL)
		return get_debug_options_func();
	return 0;
	}
Commit	Line	Data
d02b48c6	1	/* crypto/mem.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 <stdlib.h>
458cddc1	61	#include <openssl/crypto.h>
d02b48c6 RE	62	#include "cryptlib.h"
d02b48c6 RE	63
1f575f1b	64
0cd08cce BM	65	static int allow_customize = 1; /* we provide flexible functions for */
	66	static int allow_customize_debug = 1;/* exchanging memory-related functions at
	67	* run-time, but this must be done
	68	* before any blocks are actually
	69	* allocated; or we'll run into huge
	70	* problems when malloc/free pairs
	71	* don't match etc. */
d02b48c6	72
a5435e8b BM	73
	74
	75	/* the following pointers may be changed as long as 'allow_customize' is set */
	76
0cd08cce	77	static void (malloc_func)(size_t) = malloc;
a5435e8b BM	78	static void default_malloc_ex(size_t num, const char file, int line)
	79	{ return malloc_func(num); }
	80	static void (malloc_ex_func)(size_t, const char *file, int line)
	81	= default_malloc_ex;
	82
0cd08cce	83	static void (realloc_func)(void *, size_t)= realloc;
a5435e8b BM	84	static void default_realloc_ex(void str, size_t num,
	85	const char *file, int line)
	86	{ return realloc_func(str,num); }
	87	static void (realloc_ex_func)(void , size_t, const char file, int line)
	88	= default_realloc_ex;
	89
0cd08cce BM	90	static void (free_func)(void ) = free;
0cd08cce BM	91
a5435e8b BM	92	static void (malloc_locked_func)(size_t) = malloc;
	93	static void default_malloc_locked_ex(size_t num, const char file, int line)
	94	{ return malloc_locked_func(num); }
65a22e8e	95	static void (malloc_locked_ex_func)(size_t, const char *file, int line)
a5435e8b BM	96	= default_malloc_locked_ex;
	97
	98	static void (free_locked_func)(void ) = free;
65a22e8e	99
a5435e8b BM	100
	101
	102	/* may be changed as long as 'allow_customize_debug' is set */
0cd08cce	103	/* XXX use correct function pointer types */
f3a2a044	104	#ifdef CRYPTO_MDEBUG
65962686	105	/* use default functions from mem_dbg.c */
6343829a	106	static void (malloc_debug_func)(void ,int,const char *,int,int)
65962686	107	= CRYPTO_dbg_malloc;
6343829a	108	static void (realloc_debug_func)(void ,void ,int,const char ,int,int)
65962686 RL	109	= CRYPTO_dbg_realloc;
	110	static void (free_debug_func)(void ,int) = CRYPTO_dbg_free;
	111	static void (*set_debug_options_func)(long) = CRYPTO_dbg_set_options;
	112	static long (*get_debug_options_func)(void) = CRYPTO_dbg_get_options;
f3a2a044	113	#else
65962686 RL	114	/* applications can use CRYPTO_malloc_debug_init() to select above case
65962686 RL	115	* at run-time */
6343829a GT	116	static void (malloc_debug_func)(void ,int,const char *,int,int) = NULL;
6343829a GT	117	static void (realloc_debug_func)(void ,void ,int,const char ,int,int)
65962686 RL	118	= NULL;
	119	static void (free_debug_func)(void ,int) = NULL;
	120	static void (*set_debug_options_func)(long) = NULL;
	121	static long (*get_debug_options_func)(void) = NULL;
f3a2a044	122	#endif
9ac42ed8	123
0cd08cce BM	124
	125	int CRYPTO_set_mem_functions(void (m)(size_t), void (r)(void *, size_t),
	126	void (f)(void ))
d02b48c6	127	{
293c58c1	128	OPENSSL_init();
0cd08cce BM	129	if (!allow_customize)
0cd08cce BM	130	return 0;
a5435e8b	131	if ((m == 0) \|\| (r == 0) \|\| (f == 0))
0cd08cce	132	return 0;
a5435e8b BM	133	malloc_func=m; malloc_ex_func=default_malloc_ex;
a5435e8b BM	134	realloc_func=r; realloc_ex_func=default_realloc_ex;
d02b48c6	135	free_func=f;
a5435e8b	136	malloc_locked_func=m; malloc_locked_ex_func=default_malloc_locked_ex;
dfeab068	137	free_locked_func=f;
0cd08cce BM	138	return 1;
	139	}
	140
65a22e8e RL	141	int CRYPTO_set_mem_ex_functions(
	142	void (m)(size_t,const char *,int),
	143	void (r)(void , size_t,const char ,int),
	144	void (f)(void ))
	145	{
	146	if (!allow_customize)
	147	return 0;
a5435e8b BM	148	if ((m == 0) \|\| (r == 0) \|\| (f == 0))
	149	return 0;
	150	malloc_func=0; malloc_ex_func=m;
	151	realloc_func=0; realloc_ex_func=r;
	152	free_func=f;
	153	malloc_locked_func=0; malloc_locked_ex_func=m;
	154	free_locked_func=f;
65a22e8e RL	155	return 1;
	156	}
	157
0cd08cce BM	158	int CRYPTO_set_locked_mem_functions(void (m)(size_t), void (f)(void ))
	159	{
	160	if (!allow_customize)
	161	return 0;
	162	if ((m == NULL) \|\| (f == NULL))
	163	return 0;
a5435e8b	164	malloc_locked_func=m; malloc_locked_ex_func=default_malloc_locked_ex;
0cd08cce BM	165	free_locked_func=f;
0cd08cce BM	166	return 1;
dfeab068 RE	167	}
dfeab068 RE	168
65a22e8e RL	169	int CRYPTO_set_locked_mem_ex_functions(
	170	void (m)(size_t,const char *,int),
	171	void (f)(void ))
	172	{
	173	if (!allow_customize)
	174	return 0;
a5435e8b BM	175	if ((m == NULL) \|\| (f == NULL))
	176	return 0;
	177	malloc_locked_func=0; malloc_locked_ex_func=m;
	178	free_func=f;
65a22e8e RL	179	return 1;
	180	}
	181
6343829a GT	182	int CRYPTO_set_mem_debug_functions(void (m)(void ,int,const char *,int,int),
6343829a GT	183	void (r)(void ,void ,int,const char ,int,int),
65962686 RL	184	void (f)(void ,int),
	185	void (*so)(long),
	186	long (*go)(void))
9ac42ed8	187	{
0cd08cce BM	188	if (!allow_customize_debug)
0cd08cce BM	189	return 0;
f69e5d6a	190	OPENSSL_init();
9ac42ed8 RL	191	malloc_debug_func=m;
	192	realloc_debug_func=r;
	193	free_debug_func=f;
	194	set_debug_options_func=so;
	195	get_debug_options_func=go;
0cd08cce	196	return 1;
9ac42ed8 RL	197	}
9ac42ed8 RL	198
a5435e8b	199
0cd08cce BM	200	void CRYPTO_get_mem_functions(void (m)(size_t), void (*r)(void , size_t),
0cd08cce BM	201	void (*f)(void ))
d02b48c6	202	{
b93642c5 BM	203	if (m != NULL) *m = (malloc_ex_func == default_malloc_ex) ?
	204	malloc_func : 0;
	205	if (r != NULL) *r = (realloc_ex_func == default_realloc_ex) ?
	206	realloc_func : 0;
d02b48c6 RE	207	if (f != NULL) *f=free_func;
	208	}
	209
65a22e8e RL	210	void CRYPTO_get_mem_ex_functions(
	211	void (m)(size_t,const char ,int),
	212	void (r)(void , size_t,const char *,int),
	213	void (*f)(void ))
	214	{
a5435e8b BM	215	if (m != NULL) *m = (malloc_ex_func != default_malloc_ex) ?
	216	malloc_ex_func : 0;
	217	if (r != NULL) *r = (realloc_ex_func != default_realloc_ex) ?
	218	realloc_ex_func : 0;
	219	if (f != NULL) *f=free_func;
65a22e8e RL	220	}
65a22e8e RL	221
0cd08cce BM	222	void CRYPTO_get_locked_mem_functions(void (m)(size_t), void (f)(void ))
0cd08cce BM	223	{
b93642c5 BM	224	if (m != NULL) *m = (malloc_locked_ex_func == default_malloc_locked_ex) ?
b93642c5 BM	225	malloc_locked_func : 0;
0cd08cce BM	226	if (f != NULL) *f=free_locked_func;
	227	}
	228
65a22e8e RL	229	void CRYPTO_get_locked_mem_ex_functions(
	230	void (m)(size_t,const char ,int),
	231	void (*f)(void ))
	232	{
a5435e8b BM	233	if (m != NULL) *m = (malloc_locked_ex_func != default_malloc_locked_ex) ?
	234	malloc_locked_ex_func : 0;
	235	if (f != NULL) *f=free_locked_func;
65a22e8e RL	236	}
65a22e8e RL	237
6343829a GT	238	void CRYPTO_get_mem_debug_functions(void (*m)(void ,int,const char *,int,int),
6343829a GT	239	void (*r)(void ,void ,int,const char ,int,int),
65962686 RL	240	void (*f)(void ,int),
	241	void (**so)(long),
	242	long (**go)(void))
dfeab068	243	{
9ac42ed8 RL	244	if (m != NULL) *m=malloc_debug_func;
	245	if (r != NULL) *r=realloc_debug_func;
	246	if (f != NULL) *f=free_debug_func;
	247	if (so != NULL) *so=set_debug_options_func;
	248	if (go != NULL) *go=get_debug_options_func;
dfeab068 RE	249	}
dfeab068 RE	250
d02b48c6	251
6343829a	252	void CRYPTO_malloc_locked(int num, const char file, int line)
d02b48c6	253	{
65962686	254	void *ret = NULL;
d02b48c6	255
6781efb9	256	if (num <= 0) return NULL;
d5234c7b	257
0cd08cce	258	allow_customize = 0;
f3a2a044	259	if (malloc_debug_func != NULL)
0cd08cce BM	260	{
0cd08cce BM	261	allow_customize_debug = 0;
f3a2a044	262	malloc_debug_func(NULL, num, file, line, 0);
0cd08cce	263	}
65a22e8e	264	ret = malloc_locked_ex_func(num,file,line);
8d28d5f8 RL	265	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	266	fprintf(stderr, "LEVITTE_DEBUG_MEM: > 0x%p (%d)\n", ret, num);
3dff94c2	267	#endif
f3a2a044 RL	268	if (malloc_debug_func != NULL)
f3a2a044 RL	269	malloc_debug_func(ret, num, file, line, 1);
1f575f1b	270
b2dba9bf	271	#ifndef OPENSSL_CPUID_OBJ
df29cc8f RL	272	/* Create a dependency on the value of 'cleanse_ctr' so our memory
	273	* sanitisation function can't be optimised out. NB: We only do
	274	* this for >2Kb so the overhead doesn't bother us. */
	275	if(ret && (num > 2048))
b2dba9bf	276	{ extern unsigned char cleanse_ctr;
df29cc8f	277	((unsigned char *)ret)[0] = cleanse_ctr;
b2dba9bf AP	278	}
b2dba9bf AP	279	#endif
df29cc8f	280
9ac42ed8	281	return ret;
d02b48c6 RE	282	}
d02b48c6 RE	283
9ac42ed8	284	void CRYPTO_free_locked(void *str)
d02b48c6	285	{
f3a2a044 RL	286	if (free_debug_func != NULL)
f3a2a044 RL	287	free_debug_func(str, 0);
8d28d5f8 RL	288	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	289	fprintf(stderr, "LEVITTE_DEBUG_MEM: < 0x%p\n", str);
9ac42ed8	290	#endif
a5435e8b	291	free_locked_func(str);
f3a2a044 RL	292	if (free_debug_func != NULL)
f3a2a044 RL	293	free_debug_func(NULL, 1);
d02b48c6 RE	294	}
d02b48c6 RE	295
6343829a	296	void CRYPTO_malloc(int num, const char file, int line)
d02b48c6	297	{
65962686	298	void *ret = NULL;
d02b48c6	299
6781efb9	300	if (num <= 0) return NULL;
d5234c7b	301
0cd08cce	302	allow_customize = 0;
f3a2a044	303	if (malloc_debug_func != NULL)
0cd08cce BM	304	{
0cd08cce BM	305	allow_customize_debug = 0;
f3a2a044	306	malloc_debug_func(NULL, num, file, line, 0);
0cd08cce	307	}
65a22e8e	308	ret = malloc_ex_func(num,file,line);
8d28d5f8 RL	309	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	310	fprintf(stderr, "LEVITTE_DEBUG_MEM: > 0x%p (%d)\n", ret, num);
9ac42ed8	311	#endif
f3a2a044 RL	312	if (malloc_debug_func != NULL)
f3a2a044 RL	313	malloc_debug_func(ret, num, file, line, 1);
d02b48c6	314
b2dba9bf	315	#ifndef OPENSSL_CPUID_OBJ
df29cc8f RL	316	/* Create a dependency on the value of 'cleanse_ctr' so our memory
	317	* sanitisation function can't be optimised out. NB: We only do
	318	* this for >2Kb so the overhead doesn't bother us. */
	319	if(ret && (num > 2048))
b2dba9bf	320	{ extern unsigned char cleanse_ctr;
df29cc8f	321	((unsigned char *)ret)[0] = cleanse_ctr;
b2dba9bf AP	322	}
b2dba9bf AP	323	#endif
df29cc8f	324
9ac42ed8	325	return ret;
d02b48c6	326	}
6caa4edd BL	327	char CRYPTO_strdup(const char str, const char *file, int line)
	328	{
	329	char *ret = CRYPTO_malloc(strlen(str)+1, file, line);
	330
	331	strcpy(ret, str);
	332	return ret;
	333	}
d02b48c6	334
6343829a	335	void CRYPTO_realloc(void str, int num, const char *file, int line)
d02b48c6	336	{
65962686	337	void *ret = NULL;
d02b48c6	338
0472883c RL	339	if (str == NULL)
0472883c RL	340	return CRYPTO_malloc(num, file, line);
d5234c7b	341
6781efb9	342	if (num <= 0) return NULL;
d5234c7b	343
f3a2a044 RL	344	if (realloc_debug_func != NULL)
f3a2a044 RL	345	realloc_debug_func(str, NULL, num, file, line, 0);
65a22e8e	346	ret = realloc_ex_func(str,num,file,line);
8d28d5f8 RL	347	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	348	fprintf(stderr, "LEVITTE_DEBUG_MEM: \| 0x%p -> 0x%p (%d)\n", str, ret, num);
1f575f1b	349	#endif
f3a2a044 RL	350	if (realloc_debug_func != NULL)
f3a2a044 RL	351	realloc_debug_func(str, ret, num, file, line, 1);
9ac42ed8 RL	352
9ac42ed8 RL	353	return ret;
d02b48c6 RE	354	}
d02b48c6 RE	355
6343829a GT	356	void CRYPTO_realloc_clean(void str, int old_len, int num, const char *file,
6343829a GT	357	int line)
54a656ef BL	358	{
	359	void *ret = NULL;
	360
	361	if (str == NULL)
	362	return CRYPTO_malloc(num, file, line);
d5234c7b	363
6781efb9	364	if (num <= 0) return NULL;
d5234c7b	365
564a503b DSH	366	/* We don't support shrinking the buffer. Note the memcpy that copies
	367	* \|old_len\| bytes to the new buffer, below. */
	368	if (num < old_len) return NULL;
	369
54a656ef BL	370	if (realloc_debug_func != NULL)
	371	realloc_debug_func(str, NULL, num, file, line, 0);
	372	ret=malloc_ex_func(num,file,line);
	373	if(ret)
83eb412d	374	{
54a656ef	375	memcpy(ret,str,old_len);
83eb412d RL	376	OPENSSL_cleanse(str,old_len);
	377	free_func(str);
	378	}
54a656ef	379	#ifdef LEVITTE_DEBUG_MEM
83eb412d RL	380	fprintf(stderr,
	381	"LEVITTE_DEBUG_MEM: \| 0x%p -> 0x%p (%d)\n",
	382	str, ret, num);
54a656ef BL	383	#endif
	384	if (realloc_debug_func != NULL)
	385	realloc_debug_func(str, ret, num, file, line, 1);
	386
	387	return ret;
	388	}
	389
9ac42ed8	390	void CRYPTO_free(void *str)
d02b48c6	391	{
f3a2a044 RL	392	if (free_debug_func != NULL)
f3a2a044 RL	393	free_debug_func(str, 0);
8d28d5f8 RL	394	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	395	fprintf(stderr, "LEVITTE_DEBUG_MEM: < 0x%p\n", str);
dfeab068	396	#endif
a5435e8b	397	free_func(str);
f3a2a044 RL	398	if (free_debug_func != NULL)
f3a2a044 RL	399	free_debug_func(NULL, 1);
d02b48c6 RE	400	}
d02b48c6 RE	401
6343829a	402	void CRYPTO_remalloc(void a, int num, const char *file, int line)
d02b48c6	403	{
26a3a48d	404	if (a != NULL) OPENSSL_free(a);
6343829a	405	a=(char *)OPENSSL_malloc(num);
9ac42ed8	406	return(a);
d02b48c6 RE	407	}
d02b48c6 RE	408
0cd08cce	409	void CRYPTO_set_mem_debug_options(long bits)
d02b48c6	410	{
f3a2a044 RL	411	if (set_debug_options_func != NULL)
f3a2a044 RL	412	set_debug_options_func(bits);
d02b48c6 RE	413	}
d02b48c6 RE	414
667ac4ec	415	long CRYPTO_get_mem_debug_options(void)
d02b48c6	416	{
f3a2a044 RL	417	if (get_debug_options_func != NULL)
f3a2a044 RL	418	return get_debug_options_func();
0cd08cce	419	return 0;
d02b48c6	420	}