[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_FIPS)
/* 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;

static int  (*push_info_func)(const char *info, const char *file, int line)
	= CRYPTO_dbg_push_info;
static int  (*pop_info_func)(void)
	= CRYPTO_dbg_pop_info;
static int (*remove_all_info_func)(void)
	= CRYPTO_dbg_remove_all_info;

#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;


static int  (*push_info_func)(const char *info, const char *file, int line)
	= NULL;
static int  (*pop_info_func)(void) = NULL;
static int (*remove_all_info_func)(void) = NULL;

#endif


int CRYPTO_set_mem_functions(void *(*m)(size_t), void *(*r)(void *, size_t),
	void (*f)(void *))
	{
	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_set_mem_info_functions(
	int  (*push_info_fn)(const char *info, const char *file, int line),
	int  (*pop_info_fn)(void),
	int (*remove_all_info_fn)(void))
	{
	push_info_func = push_info_fn;
	pop_info_func = pop_info_fn;
	remove_all_info_func = remove_all_info_fn;
	}

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;
	extern unsigned char cleanse_ctr;

	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);

        /* 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))
		((unsigned char *)ret)[0] = cleanse_ctr;

	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;
	extern unsigned char cleanse_ctr;

	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);

        /* 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))
                ((unsigned char *)ret)[0] = cleanse_ctr;

	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;
	}

int CRYPTO_push_info_(const char *info, const char *file, int line)
	{
	if (push_info_func)
		return push_info_func(info, file, line);
	return 1;
	}

int CRYPTO_pop_info(void)
	{
	if (pop_info_func)
		return pop_info_func();
	return 1;
	}

int CRYPTO_remove_all_info(void)
	{
	if (remove_all_info_func)
		return remove_all_info_func();
	return 1;
	}
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 */
8067d34b	104	#if defined(CRYPTO_MDEBUG) && !defined(OPENSSL_FIPS)
65962686 RL	105	/* use default functions from mem_dbg.c */
	106	static void (malloc_debug_func)(void ,int,const char *,int,int)
	107	= CRYPTO_dbg_malloc;
	108	static void (realloc_debug_func)(void ,void ,int,const char ,int,int)
	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;
8067d34b DSH	113
	114	static int (push_info_func)(const char info, const char *file, int line)
	115	= CRYPTO_dbg_push_info;
	116	static int (*pop_info_func)(void)
	117	= CRYPTO_dbg_pop_info;
	118	static int (*remove_all_info_func)(void)
	119	= CRYPTO_dbg_remove_all_info;
	120
f3a2a044	121	#else
65962686 RL	122	/* applications can use CRYPTO_malloc_debug_init() to select above case
	123	* at run-time */
	124	static void (malloc_debug_func)(void ,int,const char *,int,int) = NULL;
	125	static void (realloc_debug_func)(void ,void ,int,const char ,int,int)
	126	= NULL;
	127	static void (free_debug_func)(void ,int) = NULL;
	128	static void (*set_debug_options_func)(long) = NULL;
	129	static long (*get_debug_options_func)(void) = NULL;
8067d34b DSH	130
	131
	132	static int (push_info_func)(const char info, const char *file, int line)
	133	= NULL;
	134	static int (*pop_info_func)(void) = NULL;
	135	static int (*remove_all_info_func)(void) = NULL;
	136
f3a2a044	137	#endif
9ac42ed8	138
0cd08cce BM	139
	140	int CRYPTO_set_mem_functions(void (m)(size_t), void (r)(void *, size_t),
	141	void (f)(void ))
d02b48c6	142	{
0cd08cce BM	143	if (!allow_customize)
0cd08cce BM	144	return 0;
a5435e8b	145	if ((m == 0) \|\| (r == 0) \|\| (f == 0))
0cd08cce	146	return 0;
a5435e8b BM	147	malloc_func=m; malloc_ex_func=default_malloc_ex;
a5435e8b BM	148	realloc_func=r; realloc_ex_func=default_realloc_ex;
d02b48c6	149	free_func=f;
a5435e8b	150	malloc_locked_func=m; malloc_locked_ex_func=default_malloc_locked_ex;
dfeab068	151	free_locked_func=f;
0cd08cce BM	152	return 1;
	153	}
	154
65a22e8e RL	155	int CRYPTO_set_mem_ex_functions(
	156	void (m)(size_t,const char *,int),
	157	void (r)(void , size_t,const char ,int),
	158	void (f)(void ))
	159	{
	160	if (!allow_customize)
	161	return 0;
a5435e8b BM	162	if ((m == 0) \|\| (r == 0) \|\| (f == 0))
	163	return 0;
	164	malloc_func=0; malloc_ex_func=m;
	165	realloc_func=0; realloc_ex_func=r;
	166	free_func=f;
	167	malloc_locked_func=0; malloc_locked_ex_func=m;
	168	free_locked_func=f;
65a22e8e RL	169	return 1;
	170	}
	171
0cd08cce BM	172	int CRYPTO_set_locked_mem_functions(void (m)(size_t), void (f)(void ))
	173	{
	174	if (!allow_customize)
	175	return 0;
	176	if ((m == NULL) \|\| (f == NULL))
	177	return 0;
a5435e8b	178	malloc_locked_func=m; malloc_locked_ex_func=default_malloc_locked_ex;
0cd08cce BM	179	free_locked_func=f;
0cd08cce BM	180	return 1;
dfeab068 RE	181	}
dfeab068 RE	182
65a22e8e RL	183	int CRYPTO_set_locked_mem_ex_functions(
	184	void (m)(size_t,const char *,int),
	185	void (f)(void ))
	186	{
	187	if (!allow_customize)
	188	return 0;
a5435e8b BM	189	if ((m == NULL) \|\| (f == NULL))
	190	return 0;
	191	malloc_locked_func=0; malloc_locked_ex_func=m;
	192	free_func=f;
65a22e8e RL	193	return 1;
	194	}
	195
65962686 RL	196	int CRYPTO_set_mem_debug_functions(void (m)(void ,int,const char *,int,int),
	197	void (r)(void ,void ,int,const char ,int,int),
	198	void (f)(void ,int),
	199	void (*so)(long),
	200	long (*go)(void))
9ac42ed8	201	{
0cd08cce BM	202	if (!allow_customize_debug)
0cd08cce BM	203	return 0;
9ac42ed8 RL	204	malloc_debug_func=m;
	205	realloc_debug_func=r;
	206	free_debug_func=f;
	207	set_debug_options_func=so;
	208	get_debug_options_func=go;
0cd08cce	209	return 1;
9ac42ed8 RL	210	}
9ac42ed8 RL	211
8067d34b DSH	212	void CRYPTO_set_mem_info_functions(
	213	int (push_info_fn)(const char info, const char *file, int line),
	214	int (*pop_info_fn)(void),
	215	int (*remove_all_info_fn)(void))
	216	{
	217	push_info_func = push_info_fn;
	218	pop_info_func = pop_info_fn;
	219	remove_all_info_func = remove_all_info_fn;
	220	}
a5435e8b	221
0cd08cce BM	222	void CRYPTO_get_mem_functions(void (m)(size_t), void (*r)(void , size_t),
0cd08cce BM	223	void (*f)(void ))
d02b48c6	224	{
b93642c5 BM	225	if (m != NULL) *m = (malloc_ex_func == default_malloc_ex) ?
	226	malloc_func : 0;
	227	if (r != NULL) *r = (realloc_ex_func == default_realloc_ex) ?
	228	realloc_func : 0;
d02b48c6 RE	229	if (f != NULL) *f=free_func;
	230	}
	231
65a22e8e RL	232	void CRYPTO_get_mem_ex_functions(
	233	void (m)(size_t,const char ,int),
	234	void (r)(void , size_t,const char *,int),
	235	void (*f)(void ))
	236	{
a5435e8b BM	237	if (m != NULL) *m = (malloc_ex_func != default_malloc_ex) ?
	238	malloc_ex_func : 0;
	239	if (r != NULL) *r = (realloc_ex_func != default_realloc_ex) ?
	240	realloc_ex_func : 0;
	241	if (f != NULL) *f=free_func;
65a22e8e RL	242	}
65a22e8e RL	243
0cd08cce BM	244	void CRYPTO_get_locked_mem_functions(void (m)(size_t), void (f)(void ))
0cd08cce BM	245	{
b93642c5 BM	246	if (m != NULL) *m = (malloc_locked_ex_func == default_malloc_locked_ex) ?
b93642c5 BM	247	malloc_locked_func : 0;
0cd08cce BM	248	if (f != NULL) *f=free_locked_func;
	249	}
	250
65a22e8e RL	251	void CRYPTO_get_locked_mem_ex_functions(
	252	void (m)(size_t,const char ,int),
	253	void (*f)(void ))
	254	{
a5435e8b BM	255	if (m != NULL) *m = (malloc_locked_ex_func != default_malloc_locked_ex) ?
	256	malloc_locked_ex_func : 0;
	257	if (f != NULL) *f=free_locked_func;
65a22e8e RL	258	}
65a22e8e RL	259
65962686 RL	260	void CRYPTO_get_mem_debug_functions(void (*m)(void ,int,const char *,int,int),
	261	void (*r)(void ,void ,int,const char ,int,int),
	262	void (*f)(void ,int),
	263	void (**so)(long),
	264	long (**go)(void))
dfeab068	265	{
9ac42ed8 RL	266	if (m != NULL) *m=malloc_debug_func;
	267	if (r != NULL) *r=realloc_debug_func;
	268	if (f != NULL) *f=free_debug_func;
	269	if (so != NULL) *so=set_debug_options_func;
	270	if (go != NULL) *go=get_debug_options_func;
dfeab068 RE	271	}
dfeab068 RE	272
d02b48c6	273
9d1a01be	274	void CRYPTO_malloc_locked(int num, const char file, int line)
d02b48c6	275	{
65962686	276	void *ret = NULL;
df29cc8f	277	extern unsigned char cleanse_ctr;
d02b48c6	278
6781efb9	279	if (num <= 0) return NULL;
d5234c7b	280
0cd08cce	281	allow_customize = 0;
f3a2a044	282	if (malloc_debug_func != NULL)
0cd08cce BM	283	{
0cd08cce BM	284	allow_customize_debug = 0;
f3a2a044	285	malloc_debug_func(NULL, num, file, line, 0);
0cd08cce	286	}
65a22e8e	287	ret = malloc_locked_ex_func(num,file,line);
8d28d5f8 RL	288	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	289	fprintf(stderr, "LEVITTE_DEBUG_MEM: > 0x%p (%d)\n", ret, num);
3dff94c2	290	#endif
f3a2a044 RL	291	if (malloc_debug_func != NULL)
f3a2a044 RL	292	malloc_debug_func(ret, num, file, line, 1);
1f575f1b	293
df29cc8f RL	294	/* Create a dependency on the value of 'cleanse_ctr' so our memory
	295	* sanitisation function can't be optimised out. NB: We only do
	296	* this for >2Kb so the overhead doesn't bother us. */
	297	if(ret && (num > 2048))
	298	((unsigned char *)ret)[0] = cleanse_ctr;
	299
9ac42ed8	300	return ret;
d02b48c6 RE	301	}
d02b48c6 RE	302
9ac42ed8	303	void CRYPTO_free_locked(void *str)
d02b48c6	304	{
f3a2a044 RL	305	if (free_debug_func != NULL)
f3a2a044 RL	306	free_debug_func(str, 0);
8d28d5f8 RL	307	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	308	fprintf(stderr, "LEVITTE_DEBUG_MEM: < 0x%p\n", str);
9ac42ed8	309	#endif
a5435e8b	310	free_locked_func(str);
f3a2a044 RL	311	if (free_debug_func != NULL)
f3a2a044 RL	312	free_debug_func(NULL, 1);
d02b48c6 RE	313	}
d02b48c6 RE	314
9d1a01be	315	void CRYPTO_malloc(int num, const char file, int line)
d02b48c6	316	{
65962686	317	void *ret = NULL;
df29cc8f	318	extern unsigned char cleanse_ctr;
d02b48c6	319
6781efb9	320	if (num <= 0) return NULL;
d5234c7b	321
0cd08cce	322	allow_customize = 0;
f3a2a044	323	if (malloc_debug_func != NULL)
0cd08cce BM	324	{
0cd08cce BM	325	allow_customize_debug = 0;
f3a2a044	326	malloc_debug_func(NULL, num, file, line, 0);
0cd08cce	327	}
65a22e8e	328	ret = malloc_ex_func(num,file,line);
8d28d5f8 RL	329	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	330	fprintf(stderr, "LEVITTE_DEBUG_MEM: > 0x%p (%d)\n", ret, num);
9ac42ed8	331	#endif
f3a2a044 RL	332	if (malloc_debug_func != NULL)
f3a2a044 RL	333	malloc_debug_func(ret, num, file, line, 1);
d02b48c6	334
df29cc8f RL	335	/* Create a dependency on the value of 'cleanse_ctr' so our memory
	336	* sanitisation function can't be optimised out. NB: We only do
	337	* this for >2Kb so the overhead doesn't bother us. */
	338	if(ret && (num > 2048))
	339	((unsigned char *)ret)[0] = cleanse_ctr;
	340
9ac42ed8	341	return ret;
d02b48c6 RE	342	}
d02b48c6 RE	343
9d1a01be	344	void CRYPTO_realloc(void str, int num, const char *file, int line)
d02b48c6	345	{
65962686	346	void *ret = NULL;
d02b48c6	347
0472883c RL	348	if (str == NULL)
0472883c RL	349	return CRYPTO_malloc(num, file, line);
d5234c7b	350
6781efb9	351	if (num <= 0) return NULL;
d5234c7b	352
f3a2a044 RL	353	if (realloc_debug_func != NULL)
f3a2a044 RL	354	realloc_debug_func(str, NULL, num, file, line, 0);
65a22e8e	355	ret = realloc_ex_func(str,num,file,line);
8d28d5f8 RL	356	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	357	fprintf(stderr, "LEVITTE_DEBUG_MEM: \| 0x%p -> 0x%p (%d)\n", str, ret, num);
1f575f1b	358	#endif
f3a2a044 RL	359	if (realloc_debug_func != NULL)
f3a2a044 RL	360	realloc_debug_func(str, ret, num, file, line, 1);
9ac42ed8 RL	361
9ac42ed8 RL	362	return ret;
d02b48c6 RE	363	}
d02b48c6 RE	364
54a656ef BL	365	void CRYPTO_realloc_clean(void str, int old_len, int num, const char *file,
	366	int line)
	367	{
	368	void *ret = NULL;
	369
	370	if (str == NULL)
	371	return CRYPTO_malloc(num, file, line);
d5234c7b	372
6781efb9	373	if (num <= 0) return NULL;
d5234c7b	374
556e27b1 DSH	375	/* We don't support shrinking the buffer. Note the memcpy that copies
	376	* \|old_len\| bytes to the new buffer, below. */
	377	if (num < old_len) return NULL;
	378
54a656ef BL	379	if (realloc_debug_func != NULL)
	380	realloc_debug_func(str, NULL, num, file, line, 0);
	381	ret=malloc_ex_func(num,file,line);
	382	if(ret)
83eb412d	383	{
54a656ef	384	memcpy(ret,str,old_len);
83eb412d RL	385	OPENSSL_cleanse(str,old_len);
	386	free_func(str);
	387	}
54a656ef	388	#ifdef LEVITTE_DEBUG_MEM
83eb412d RL	389	fprintf(stderr,
	390	"LEVITTE_DEBUG_MEM: \| 0x%p -> 0x%p (%d)\n",
	391	str, ret, num);
54a656ef BL	392	#endif
	393	if (realloc_debug_func != NULL)
	394	realloc_debug_func(str, ret, num, file, line, 1);
	395
	396	return ret;
	397	}
	398
9ac42ed8	399	void CRYPTO_free(void *str)
d02b48c6	400	{
f3a2a044 RL	401	if (free_debug_func != NULL)
f3a2a044 RL	402	free_debug_func(str, 0);
8d28d5f8 RL	403	#ifdef LEVITTE_DEBUG_MEM
8d28d5f8 RL	404	fprintf(stderr, "LEVITTE_DEBUG_MEM: < 0x%p\n", str);
dfeab068	405	#endif
a5435e8b	406	free_func(str);
f3a2a044 RL	407	if (free_debug_func != NULL)
f3a2a044 RL	408	free_debug_func(NULL, 1);
d02b48c6 RE	409	}
d02b48c6 RE	410
9d1a01be	411	void CRYPTO_remalloc(void a, int num, const char *file, int line)
d02b48c6	412	{
26a3a48d RL	413	if (a != NULL) OPENSSL_free(a);
26a3a48d RL	414	a=(char *)OPENSSL_malloc(num);
9ac42ed8	415	return(a);
d02b48c6 RE	416	}
d02b48c6 RE	417
0cd08cce	418	void CRYPTO_set_mem_debug_options(long bits)
d02b48c6	419	{
f3a2a044 RL	420	if (set_debug_options_func != NULL)
f3a2a044 RL	421	set_debug_options_func(bits);
d02b48c6 RE	422	}
d02b48c6 RE	423
667ac4ec	424	long CRYPTO_get_mem_debug_options(void)
d02b48c6	425	{
f3a2a044 RL	426	if (get_debug_options_func != NULL)
f3a2a044 RL	427	return get_debug_options_func();
0cd08cce	428	return 0;
d02b48c6	429	}
8067d34b DSH	430
	431	int CRYPTO_push_info_(const char info, const char file, int line)
	432	{
	433	if (push_info_func)
	434	return push_info_func(info, file, line);
	435	return 1;
	436	}
	437
	438	int CRYPTO_pop_info(void)
	439	{
	440	if (pop_info_func)
	441	return pop_info_func();
	442	return 1;
	443	}
	444
	445	int CRYPTO_remove_all_info(void)
	446	{
	447	if (remove_all_info_func)
	448	return remove_all_info_func();
	449	return 1;
	450	}