[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 */
#if defined(CRYPTO_MDEBUG) && !defined(OPENSSL_FIPSCANISTER)
/* 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

extern void OPENSSL_init(void);

int CRYPTO_set_mem_functions(void *(*m)(size_t), void *(*r)(void *, size_t),
	void (*f)(void *))
	{
	/* Dummy call just to ensure OPENSSL_init() gets linked in */
	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;
	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;

	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 */
ad6019d6	104	#if defined(CRYPTO_MDEBUG) && !defined(OPENSSL_FIPSCANISTER)
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
c4acfb1f	124	extern void OPENSSL_init(void);
0cd08cce BM	125
	126	int CRYPTO_set_mem_functions(void (m)(size_t), void (r)(void *, size_t),
	127	void (f)(void ))
d02b48c6	128	{
c4acfb1f DSH	129	/* Dummy call just to ensure OPENSSL_init() gets linked in */
c4acfb1f DSH	130	OPENSSL_init();
0cd08cce BM	131	if (!allow_customize)
0cd08cce BM	132	return 0;
a5435e8b	133	if ((m == 0) \|\| (r == 0) \|\| (f == 0))
0cd08cce	134	return 0;
a5435e8b BM	135	malloc_func=m; malloc_ex_func=default_malloc_ex;
a5435e8b BM	136	realloc_func=r; realloc_ex_func=default_realloc_ex;
d02b48c6	137	free_func=f;
a5435e8b	138	malloc_locked_func=m; malloc_locked_ex_func=default_malloc_locked_ex;
dfeab068	139	free_locked_func=f;
0cd08cce BM	140	return 1;
	141	}
	142
65a22e8e RL	143	int CRYPTO_set_mem_ex_functions(
	144	void (m)(size_t,const char *,int),
	145	void (r)(void , size_t,const char ,int),
	146	void (f)(void ))
	147	{
	148	if (!allow_customize)
	149	return 0;
a5435e8b BM	150	if ((m == 0) \|\| (r == 0) \|\| (f == 0))
	151	return 0;
	152	malloc_func=0; malloc_ex_func=m;
	153	realloc_func=0; realloc_ex_func=r;
	154	free_func=f;
	155	malloc_locked_func=0; malloc_locked_ex_func=m;
	156	free_locked_func=f;
65a22e8e RL	157	return 1;
	158	}
	159
0cd08cce BM	160	int CRYPTO_set_locked_mem_functions(void (m)(size_t), void (f)(void ))
	161	{
	162	if (!allow_customize)
	163	return 0;
	164	if ((m == NULL) \|\| (f == NULL))
	165	return 0;
a5435e8b	166	malloc_locked_func=m; malloc_locked_ex_func=default_malloc_locked_ex;
0cd08cce BM	167	free_locked_func=f;
0cd08cce BM	168	return 1;
dfeab068 RE	169	}
dfeab068 RE	170
65a22e8e RL	171	int CRYPTO_set_locked_mem_ex_functions(
	172	void (m)(size_t,const char *,int),
	173	void (f)(void ))
	174	{
	175	if (!allow_customize)
	176	return 0;
a5435e8b BM	177	if ((m == NULL) \|\| (f == NULL))
	178	return 0;
	179	malloc_locked_func=0; malloc_locked_ex_func=m;
	180	free_func=f;
65a22e8e RL	181	return 1;
	182	}
	183
6343829a GT	184	int CRYPTO_set_mem_debug_functions(void (m)(void ,int,const char *,int,int),
6343829a GT	185	void (r)(void ,void ,int,const char ,int,int),
65962686 RL	186	void (f)(void ,int),
	187	void (*so)(long),
	188	long (*go)(void))
9ac42ed8	189	{
0cd08cce BM	190	if (!allow_customize_debug)
0cd08cce BM	191	return 0;
9ac42ed8 RL	192	malloc_debug_func=m;
	193	realloc_debug_func=r;
	194	free_debug_func=f;
	195	set_debug_options_func=so;
	196	get_debug_options_func=go;
0cd08cce	197	return 1;
9ac42ed8 RL	198	}
9ac42ed8 RL	199
a5435e8b	200
0cd08cce BM	201	void CRYPTO_get_mem_functions(void (m)(size_t), void (*r)(void , size_t),
0cd08cce BM	202	void (*f)(void ))
d02b48c6	203	{
b93642c5 BM	204	if (m != NULL) *m = (malloc_ex_func == default_malloc_ex) ?
	205	malloc_func : 0;
	206	if (r != NULL) *r = (realloc_ex_func == default_realloc_ex) ?
	207	realloc_func : 0;
d02b48c6 RE	208	if (f != NULL) *f=free_func;
	209	}
	210
65a22e8e RL	211	void CRYPTO_get_mem_ex_functions(
	212	void (m)(size_t,const char ,int),
	213	void (r)(void , size_t,const char *,int),
	214	void (*f)(void ))
	215	{
a5435e8b BM	216	if (m != NULL) *m = (malloc_ex_func != default_malloc_ex) ?
	217	malloc_ex_func : 0;
	218	if (r != NULL) *r = (realloc_ex_func != default_realloc_ex) ?
	219	realloc_ex_func : 0;
	220	if (f != NULL) *f=free_func;
65a22e8e RL	221	}
65a22e8e RL	222
0cd08cce BM	223	void CRYPTO_get_locked_mem_functions(void (m)(size_t), void (f)(void ))
0cd08cce BM	224	{
b93642c5 BM	225	if (m != NULL) *m = (malloc_locked_ex_func == default_malloc_locked_ex) ?
b93642c5 BM	226	malloc_locked_func : 0;
0cd08cce BM	227	if (f != NULL) *f=free_locked_func;
	228	}
	229
65a22e8e RL	230	void CRYPTO_get_locked_mem_ex_functions(
	231	void (m)(size_t,const char ,int),
	232	void (*f)(void ))
	233	{
a5435e8b BM	234	if (m != NULL) *m = (malloc_locked_ex_func != default_malloc_locked_ex) ?
	235	malloc_locked_ex_func : 0;
	236	if (f != NULL) *f=free_locked_func;
65a22e8e RL	237	}
65a22e8e RL	238
6343829a GT	239	void CRYPTO_get_mem_debug_functions(void (*m)(void ,int,const char *,int,int),
6343829a GT	240	void (*r)(void ,void ,int,const char ,int,int),
65962686 RL	241	void (*f)(void ,int),
	242	void (**so)(long),
	243	long (**go)(void))
dfeab068	244	{
9ac42ed8 RL	245	if (m != NULL) *m=malloc_debug_func;
	246	if (r != NULL) *r=realloc_debug_func;
	247	if (f != NULL) *f=free_debug_func;
	248	if (so != NULL) *so=set_debug_options_func;
	249	if (go != NULL) *go=get_debug_options_func;
dfeab068 RE	250	}
dfeab068 RE	251
d02b48c6	252
6343829a	253	void CRYPTO_malloc_locked(int num, const char file, int line)
d02b48c6	254	{
65962686	255	void *ret = NULL;
d02b48c6	256
6781efb9	257	if (num <= 0) return NULL;
d5234c7b	258
0cd08cce	259	allow_customize = 0;
f3a2a044	260	if (malloc_debug_func != NULL)
0cd08cce BM	261	{
0cd08cce BM	262	allow_customize_debug = 0;
f3a2a044	263	malloc_debug_func(NULL, num, file, line, 0);
0cd08cce	264	}
65a22e8e	265	ret = malloc_locked_ex_func(num,file,line);
8d28d5f8 RL	266	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	267	fprintf(stderr, "LEVITTE_DEBUG_MEM: > 0x%p (%d)\n", ret, num);
3dff94c2	268	#endif
f3a2a044 RL	269	if (malloc_debug_func != NULL)
f3a2a044 RL	270	malloc_debug_func(ret, num, file, line, 1);
1f575f1b	271
b2dba9bf	272	#ifndef OPENSSL_CPUID_OBJ
df29cc8f RL	273	/* Create a dependency on the value of 'cleanse_ctr' so our memory
	274	* sanitisation function can't be optimised out. NB: We only do
	275	* this for >2Kb so the overhead doesn't bother us. */
	276	if(ret && (num > 2048))
b2dba9bf	277	{ extern unsigned char cleanse_ctr;
df29cc8f	278	((unsigned char *)ret)[0] = cleanse_ctr;
b2dba9bf AP	279	}
b2dba9bf AP	280	#endif
df29cc8f	281
9ac42ed8	282	return ret;
d02b48c6 RE	283	}
d02b48c6 RE	284
9ac42ed8	285	void CRYPTO_free_locked(void *str)
d02b48c6	286	{
f3a2a044 RL	287	if (free_debug_func != NULL)
f3a2a044 RL	288	free_debug_func(str, 0);
8d28d5f8 RL	289	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	290	fprintf(stderr, "LEVITTE_DEBUG_MEM: < 0x%p\n", str);
9ac42ed8	291	#endif
a5435e8b	292	free_locked_func(str);
f3a2a044 RL	293	if (free_debug_func != NULL)
f3a2a044 RL	294	free_debug_func(NULL, 1);
d02b48c6 RE	295	}
d02b48c6 RE	296
6343829a	297	void CRYPTO_malloc(int num, const char file, int line)
d02b48c6	298	{
65962686	299	void *ret = NULL;
d02b48c6	300
6781efb9	301	if (num <= 0) return NULL;
d5234c7b	302
0cd08cce	303	allow_customize = 0;
f3a2a044	304	if (malloc_debug_func != NULL)
0cd08cce BM	305	{
0cd08cce BM	306	allow_customize_debug = 0;
f3a2a044	307	malloc_debug_func(NULL, num, file, line, 0);
0cd08cce	308	}
65a22e8e	309	ret = malloc_ex_func(num,file,line);
8d28d5f8 RL	310	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	311	fprintf(stderr, "LEVITTE_DEBUG_MEM: > 0x%p (%d)\n", ret, num);
9ac42ed8	312	#endif
f3a2a044 RL	313	if (malloc_debug_func != NULL)
f3a2a044 RL	314	malloc_debug_func(ret, num, file, line, 1);
d02b48c6	315
b2dba9bf	316	#ifndef OPENSSL_CPUID_OBJ
df29cc8f RL	317	/* Create a dependency on the value of 'cleanse_ctr' so our memory
	318	* sanitisation function can't be optimised out. NB: We only do
	319	* this for >2Kb so the overhead doesn't bother us. */
	320	if(ret && (num > 2048))
b2dba9bf	321	{ extern unsigned char cleanse_ctr;
df29cc8f	322	((unsigned char *)ret)[0] = cleanse_ctr;
b2dba9bf AP	323	}
b2dba9bf AP	324	#endif
df29cc8f	325
9ac42ed8	326	return ret;
d02b48c6	327	}
6caa4edd BL	328	char CRYPTO_strdup(const char str, const char *file, int line)
	329	{
	330	char *ret = CRYPTO_malloc(strlen(str)+1, file, line);
	331
	332	strcpy(ret, str);
	333	return ret;
	334	}
d02b48c6	335
6343829a	336	void CRYPTO_realloc(void str, int num, const char *file, int line)
d02b48c6	337	{
65962686	338	void *ret = NULL;
d02b48c6	339
0472883c RL	340	if (str == NULL)
0472883c RL	341	return CRYPTO_malloc(num, file, line);
d5234c7b	342
6781efb9	343	if (num <= 0) return NULL;
d5234c7b	344
f3a2a044 RL	345	if (realloc_debug_func != NULL)
f3a2a044 RL	346	realloc_debug_func(str, NULL, num, file, line, 0);
65a22e8e	347	ret = realloc_ex_func(str,num,file,line);
8d28d5f8 RL	348	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	349	fprintf(stderr, "LEVITTE_DEBUG_MEM: \| 0x%p -> 0x%p (%d)\n", str, ret, num);
1f575f1b	350	#endif
f3a2a044 RL	351	if (realloc_debug_func != NULL)
f3a2a044 RL	352	realloc_debug_func(str, ret, num, file, line, 1);
9ac42ed8 RL	353
9ac42ed8 RL	354	return ret;
d02b48c6 RE	355	}
d02b48c6 RE	356
6343829a GT	357	void CRYPTO_realloc_clean(void str, int old_len, int num, const char *file,
6343829a GT	358	int line)
54a656ef BL	359	{
	360	void *ret = NULL;
	361
	362	if (str == NULL)
	363	return CRYPTO_malloc(num, file, line);
d5234c7b	364
6781efb9	365	if (num <= 0) return NULL;
d5234c7b	366
54a656ef BL	367	if (realloc_debug_func != NULL)
	368	realloc_debug_func(str, NULL, num, file, line, 0);
	369	ret=malloc_ex_func(num,file,line);
	370	if(ret)
83eb412d	371	{
54a656ef	372	memcpy(ret,str,old_len);
83eb412d RL	373	OPENSSL_cleanse(str,old_len);
	374	free_func(str);
	375	}
54a656ef	376	#ifdef LEVITTE_DEBUG_MEM
83eb412d RL	377	fprintf(stderr,
	378	"LEVITTE_DEBUG_MEM: \| 0x%p -> 0x%p (%d)\n",
	379	str, ret, num);
54a656ef BL	380	#endif
	381	if (realloc_debug_func != NULL)
	382	realloc_debug_func(str, ret, num, file, line, 1);
	383
	384	return ret;
	385	}
	386
9ac42ed8	387	void CRYPTO_free(void *str)
d02b48c6	388	{
f3a2a044 RL	389	if (free_debug_func != NULL)
f3a2a044 RL	390	free_debug_func(str, 0);
8d28d5f8 RL	391	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	392	fprintf(stderr, "LEVITTE_DEBUG_MEM: < 0x%p\n", str);
dfeab068	393	#endif
a5435e8b	394	free_func(str);
f3a2a044 RL	395	if (free_debug_func != NULL)
f3a2a044 RL	396	free_debug_func(NULL, 1);
d02b48c6 RE	397	}
d02b48c6 RE	398
6343829a	399	void CRYPTO_remalloc(void a, int num, const char *file, int line)
d02b48c6	400	{
26a3a48d	401	if (a != NULL) OPENSSL_free(a);
6343829a	402	a=(char *)OPENSSL_malloc(num);
9ac42ed8	403	return(a);
d02b48c6 RE	404	}
d02b48c6 RE	405
0cd08cce	406	void CRYPTO_set_mem_debug_options(long bits)
d02b48c6	407	{
f3a2a044 RL	408	if (set_debug_options_func != NULL)
f3a2a044 RL	409	set_debug_options_func(bits);
d02b48c6 RE	410	}
d02b48c6 RE	411
667ac4ec	412	long CRYPTO_get_mem_debug_options(void)
d02b48c6	413	{
f3a2a044 RL	414	if (get_debug_options_func != NULL)
f3a2a044 RL	415	return get_debug_options_func();
0cd08cce	416	return 0;
d02b48c6	417	}