2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
67 static int mh_mode=CRYPTO_MEM_CHECK_ON;
69 static int mh_mode=CRYPTO_MEM_CHECK_OFF;
71 static unsigned long order=0;
73 static LHASH *mh=NULL;
84 int CRYPTO_mem_ctrl(mode)
89 CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
92 case CRYPTO_MEM_CHECK_ON:
93 mh_mode|=CRYPTO_MEM_CHECK_ON;
95 case CRYPTO_MEM_CHECK_OFF:
96 mh_mode&= ~CRYPTO_MEM_CHECK_ON;
98 case CRYPTO_MEM_CHECK_DISABLE:
99 mh_mode&= ~CRYPTO_MEM_CHECK_ENABLE;
101 case CRYPTO_MEM_CHECK_ENABLE:
102 if (mh_mode&CRYPTO_MEM_CHECK_ON)
103 mh_mode|=CRYPTO_MEM_CHECK_ENABLE;
108 CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
112 static int mem_cmp(a,b)
115 return(a->addr - b->addr);
118 static unsigned long mem_hash(a)
123 ret=(unsigned long)a->addr;
125 ret=ret*17851+(ret>>14)*7+(ret>>4)*251;
129 static char *(*malloc_locked_func)()=(char *(*)())malloc;
130 static void (*free_locked_func)()=(void (*)())free;
131 static char *(*malloc_func)()= (char *(*)())malloc;
132 static char *(*realloc_func)()= (char *(*)())realloc;
133 static void (*free_func)()= (void (*)())free;
135 void CRYPTO_set_mem_functions(m,r,f)
140 if ((m == NULL) || (r == NULL) || (f == NULL)) return;
144 malloc_locked_func=m;
148 void CRYPTO_set_locked_mem_functions(m,f)
152 if ((m == NULL) || (f == NULL)) return;
153 malloc_locked_func=m;
157 void CRYPTO_get_mem_functions(m,r,f)
162 if (m != NULL) *m=malloc_func;
163 if (r != NULL) *r=realloc_func;
164 if (f != NULL) *f=free_func;
167 void CRYPTO_get_locked_mem_functions(m,f)
171 if (m != NULL) *m=malloc_locked_func;
172 if (f != NULL) *f=free_locked_func;
175 char *CRYPTO_malloc_locked(num)
178 return(malloc_locked_func(num));
181 void CRYPTO_free_locked(str)
184 free_locked_func(str);
187 char *CRYPTO_malloc(num)
190 return(malloc_func(num));
193 char *CRYPTO_realloc(str,num)
197 return(realloc_func(str,num));
200 void CRYPTO_free(str)
206 static unsigned long break_order_num=0;
207 char *CRYPTO_dbg_malloc(num,file,line)
215 if ((ret=malloc_func(num)) == NULL)
218 if (mh_mode & CRYPTO_MEM_CHECK_ENABLE)
221 if ((m=(MEM *)Malloc(sizeof(MEM))) == NULL)
227 CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
230 if ((mh=lh_new(mem_hash,mem_cmp)) == NULL)
243 if (order == break_order_num)
249 if ((mm=(MEM *)lh_insert(mh,(char *)m)) != NULL)
251 /* Not good, but don't sweat it */
255 CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
261 void CRYPTO_dbg_free(addr)
266 if ((mh_mode & CRYPTO_MEM_CHECK_ENABLE) && (mh != NULL))
269 CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
271 mp=(MEM *)lh_delete(mh,(char *)&m);
274 CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
280 char *CRYPTO_dbg_realloc(addr,num,file,line)
289 ret=realloc_func(addr,num);
290 if (ret == addr) return(ret);
292 if (mh_mode & CRYPTO_MEM_CHECK_ENABLE)
295 if (ret == NULL) return(NULL);
297 CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
298 mp=(MEM *)lh_delete(mh,(char *)&m);
302 lh_insert(mh,(char *)mp);
304 CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
310 char *CRYPTO_remalloc(a,n)
314 if (a != NULL) Free(a);
319 char *CRYPTO_dbg_remalloc(a,n,file,line)
325 if (a != NULL) CRYPTO_dbg_free(a);
326 a=(char *)CRYPTO_dbg_malloc(n,file,line);
331 typedef struct mem_leak_st
338 static void print_leak(m,l)
344 sprintf(buf,"%5ld file=%s, line=%d, number=%d, address=%08lX\n",
345 m->order,m->file,m->line,m->num,(long)m->addr);
346 BIO_puts(l->bio,buf);
351 void CRYPTO_mem_leaks(b)
357 if (mh == NULL) return;
361 CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
362 lh_doall_arg(mh,(void (*)())print_leak,(char *)&ml);
363 CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
366 sprintf(buf,"%ld bytes leaked in %d chunks\n",
373 lh_node_stats_bio(mh,b);
374 lh_node_usage_stats_bio(mh,b);
378 static void (*mem_cb)()=NULL;
380 static void cb_leak(m,cb)
384 void (*mem_callback)()=(void (*)())cb;
385 mem_callback(m->order,m->file,m->line,m->num,m->addr);
388 void CRYPTO_mem_leaks_cb(cb)
391 if (mh == NULL) return;
392 CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
394 lh_doall_arg(mh,(void (*)())cb_leak,(char *)mem_cb);
396 CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
400 void CRYPTO_mem_leaks_fp(fp)
405 if (mh == NULL) return;
406 if ((b=BIO_new(BIO_s_file())) == NULL)
408 BIO_set_fp(b,fp,BIO_NOCLOSE);