diff options
Diffstat (limited to 'openssl/crypto/mem.c')
| -rw-r--r-- | openssl/crypto/mem.c | 414 |
1 files changed, 0 insertions, 414 deletions
diff --git a/openssl/crypto/mem.c b/openssl/crypto/mem.c deleted file mode 100644 index 6f80dd33..00000000 --- a/openssl/crypto/mem.c +++ /dev/null @@ -1,414 +0,0 @@ -/* 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 *)) - { - 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; - } |