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.]
58 /* ====================================================================
59 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
115 #include "internal/cryptlib.h"
116 #include <openssl/crypto.h>
117 #include <openssl/buffer.h>
118 #include <openssl/bio.h>
119 #include <openssl/lhash.h>
120 #if defined(CRYPTO_MDEBUG_BACKTRACE) && defined(__GNUC__)
121 # include <execinfo.h>
124 static int mh_mode
= CRYPTO_MEM_CHECK_OFF
;
126 * The state changes to CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE when
127 * the application asks for it (usually after library initialisation for
128 * which no book-keeping is desired). State CRYPTO_MEM_CHECK_ON exists only
129 * temporarily when the library thinks that certain allocations should not be
130 * checked (e.g. the data structures used for memory checking). It is not
131 * suitable as an initial state: the library will unexpectedly enable memory
132 * checking when it executes one of those sections that want to disable
133 * checking temporarily. State CRYPTO_MEM_CHECK_ENABLE without ..._ON makes
134 * no sense whatsoever.
137 static unsigned long order
= 0; /* number of memory requests */
139 DECLARE_LHASH_OF(MEM
);
140 static LHASH_OF(MEM
) *mh
= NULL
; /* hash-table of memory requests (address as
141 * key); access requires MALLOC2 lock */
143 typedef struct app_mem_info_st
145 * For application-defined information (static C-string `info')
146 * to be displayed in memory leak list.
147 * Each thread has its own stack. For applications, there is
148 * CRYPTO_push_info("...") to push an entry,
149 * CRYPTO_pop_info() to pop an entry,
150 * CRYPTO_remove_all_info() to pop all entries.
153 CRYPTO_THREADID threadid
;
157 struct app_mem_info_st
*next
; /* tail of thread's stack */
161 static void app_info_free(APP_INFO
*);
163 DECLARE_LHASH_OF(APP_INFO
);
164 static LHASH_OF(APP_INFO
) *amih
= NULL
; /* hash-table with those
165 * app_mem_info_st's that are at the
166 * top of their thread's stack (with
167 * `thread' as key); access requires
170 typedef struct mem_st
171 /* memory-block description */
177 CRYPTO_THREADID threadid
;
181 #if defined(CRYPTO_MDEBUG_BACKTRACE) && defined(__GNUC__)
187 static long options
= /* extra information to be recorded */
188 #if defined(CRYPTO_MDEBUG_TIME) || defined(CRYPTO_MDEBUG_ALL)
189 V_CRYPTO_MDEBUG_TIME
|
191 #if defined(CRYPTO_MDEBUG_THREAD) || defined(CRYPTO_MDEBUG_ALL)
192 V_CRYPTO_MDEBUG_THREAD
|
196 static unsigned int num_disable
= 0; /* num_disable > 0 iff mh_mode ==
197 * CRYPTO_MEM_CHECK_ON (w/o ..._ENABLE) */
200 * Valid iff num_disable > 0. CRYPTO_LOCK_MALLOC2 is locked exactly in this
201 * case (by the thread named in disabling_thread).
203 static CRYPTO_THREADID disabling_threadid
;
205 static void app_info_free(APP_INFO
*inf
)
209 if (--(inf
->references
) <= 0) {
210 app_info_free(inf
->next
);
215 int CRYPTO_mem_ctrl(int mode
)
219 CRYPTO_w_lock(CRYPTO_LOCK_MALLOC
);
222 * for applications (not to be called while multiple threads use the
225 case CRYPTO_MEM_CHECK_ON
: /* aka MemCheck_start() */
226 mh_mode
= CRYPTO_MEM_CHECK_ON
| CRYPTO_MEM_CHECK_ENABLE
;
229 case CRYPTO_MEM_CHECK_OFF
: /* aka MemCheck_stop() */
231 num_disable
= 0; /* should be true *before* MemCheck_stop is
232 * used, or there'll be a lot of confusion */
235 /* switch off temporarily (for library-internal use): */
236 case CRYPTO_MEM_CHECK_DISABLE
: /* aka MemCheck_off() */
237 if (mh_mode
& CRYPTO_MEM_CHECK_ON
) {
239 CRYPTO_THREADID_current(&cur
);
240 /* see if we don't have the MALLOC2 lock already */
242 || CRYPTO_THREADID_cmp(&disabling_threadid
, &cur
)) {
244 * Long-time lock CRYPTO_LOCK_MALLOC2 must not be claimed
245 * while we're holding CRYPTO_LOCK_MALLOC, or we'll deadlock
246 * if somebody else holds CRYPTO_LOCK_MALLOC2 (and cannot
247 * release it because we block entry to this function). Give
248 * them a chance, first, and then claim the locks in
249 * appropriate order (long-time lock first).
251 CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC
);
253 * Note that after we have waited for CRYPTO_LOCK_MALLOC2 and
254 * CRYPTO_LOCK_MALLOC, we'll still be in the right "case" and
255 * "if" branch because MemCheck_start and MemCheck_stop may
256 * never be used while there are multiple OpenSSL threads.
258 CRYPTO_w_lock(CRYPTO_LOCK_MALLOC2
);
259 CRYPTO_w_lock(CRYPTO_LOCK_MALLOC
);
260 mh_mode
&= ~CRYPTO_MEM_CHECK_ENABLE
;
261 CRYPTO_THREADID_cpy(&disabling_threadid
, &cur
);
266 case CRYPTO_MEM_CHECK_ENABLE
: /* aka MemCheck_on() */
267 if (mh_mode
& CRYPTO_MEM_CHECK_ON
) {
268 if (num_disable
) { /* always true, or something is going wrong */
270 if (num_disable
== 0) {
271 mh_mode
|= CRYPTO_MEM_CHECK_ENABLE
;
272 CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC2
);
281 CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC
);
285 int CRYPTO_is_mem_check_on(void)
289 if (mh_mode
& CRYPTO_MEM_CHECK_ON
) {
291 CRYPTO_THREADID_current(&cur
);
292 CRYPTO_r_lock(CRYPTO_LOCK_MALLOC
);
294 ret
= (mh_mode
& CRYPTO_MEM_CHECK_ENABLE
)
295 || CRYPTO_THREADID_cmp(&disabling_threadid
, &cur
);
297 CRYPTO_r_unlock(CRYPTO_LOCK_MALLOC
);
302 void CRYPTO_dbg_set_options(long bits
)
307 long CRYPTO_dbg_get_options(void)
312 static int mem_cmp(const MEM
*a
, const MEM
*b
)
315 const char *ap
= (const char *)a
->addr
, *bp
= (const char *)b
->addr
;
323 return (const char *)a
->addr
- (const char *)b
->addr
;
327 static IMPLEMENT_LHASH_COMP_FN(mem
, MEM
)
329 static unsigned long mem_hash(const MEM
*a
)
333 ret
= (size_t)a
->addr
;
335 ret
= ret
* 17851 + (ret
>> 14) * 7 + (ret
>> 4) * 251;
339 static IMPLEMENT_LHASH_HASH_FN(mem
, MEM
)
341 /* static int app_info_cmp(APP_INFO *a, APP_INFO *b) */
342 static int app_info_cmp(const void *a_void
, const void *b_void
)
344 return CRYPTO_THREADID_cmp(&((const APP_INFO
*)a_void
)->threadid
,
345 &((const APP_INFO
*)b_void
)->threadid
);
348 static IMPLEMENT_LHASH_COMP_FN(app_info
, APP_INFO
)
350 static unsigned long app_info_hash(const APP_INFO
*a
)
354 ret
= CRYPTO_THREADID_hash(&a
->threadid
);
355 /* This is left in as a "who am I to question legacy?" measure */
356 ret
= ret
* 17851 + (ret
>> 14) * 7 + (ret
>> 4) * 251;
360 static IMPLEMENT_LHASH_HASH_FN(app_info
, APP_INFO
)
362 static APP_INFO
*pop_info(void)
365 APP_INFO
*ret
= NULL
;
368 CRYPTO_THREADID_current(&tmp
.threadid
);
369 if ((ret
= lh_APP_INFO_delete(amih
, &tmp
)) != NULL
) {
370 APP_INFO
*next
= ret
->next
;
374 (void)lh_APP_INFO_insert(amih
, next
);
376 #ifdef LEVITTE_DEBUG_MEM
377 if (CRYPTO_THREADID_cmp(&ret
->threadid
, &tmp
.threadid
)) {
379 "pop_info(): deleted info has other thread ID (%lu) than the current thread (%lu)!!!!\n",
380 CRYPTO_THREADID_hash(&ret
->threadid
),
381 CRYPTO_THREADID_hash(&tmp
.threadid
));
385 if (--(ret
->references
) <= 0) {
396 int CRYPTO_push_info_(const char *info
, const char *file
, int line
)
398 APP_INFO
*ami
, *amim
;
401 if (is_MemCheck_on()) {
402 MemCheck_off(); /* obtain MALLOC2 lock */
404 if ((ami
= OPENSSL_malloc(sizeof(*ami
))) == NULL
) {
409 if ((amih
= lh_APP_INFO_new()) == NULL
) {
416 CRYPTO_THREADID_current(&ami
->threadid
);
423 if ((amim
= lh_APP_INFO_insert(amih
, ami
)) != NULL
) {
424 #ifdef LEVITTE_DEBUG_MEM
425 if (CRYPTO_THREADID_cmp(&ami
->threadid
, &amim
->threadid
)) {
427 "CRYPTO_push_info(): previous info has other thread ID (%lu) than the current thread (%lu)!!!!\n",
428 CRYPTO_THREADID_hash(&amim
->threadid
),
429 CRYPTO_THREADID_hash(&ami
->threadid
));
436 MemCheck_on(); /* release MALLOC2 lock */
442 int CRYPTO_pop_info(void)
446 if (is_MemCheck_on()) { /* _must_ be true, or something went severely
448 MemCheck_off(); /* obtain MALLOC2 lock */
450 ret
= (pop_info() != NULL
);
452 MemCheck_on(); /* release MALLOC2 lock */
457 int CRYPTO_remove_all_info(void)
461 if (is_MemCheck_on()) { /* _must_ be true */
462 MemCheck_off(); /* obtain MALLOC2 lock */
464 while (pop_info() != NULL
)
467 MemCheck_on(); /* release MALLOC2 lock */
472 static unsigned long break_order_num
= 0;
473 void CRYPTO_dbg_malloc(void *addr
, int num
, const char *file
, int line
,
479 switch (before_p
& 127) {
486 if (is_MemCheck_on()) {
487 MemCheck_off(); /* make sure we hold MALLOC2 lock */
488 if ((m
= OPENSSL_malloc(sizeof(*m
))) == NULL
) {
490 MemCheck_on(); /* release MALLOC2 lock if num_disabled drops
495 if ((mh
= lh_MEM_new()) == NULL
) {
507 if (options
& V_CRYPTO_MDEBUG_THREAD
)
508 CRYPTO_THREADID_current(&m
->threadid
);
510 memset(&m
->threadid
, 0, sizeof(m
->threadid
));
512 if (order
== break_order_num
) {
517 #ifdef LEVITTE_DEBUG_MEM
518 fprintf(stderr
, "LEVITTE_DEBUG_MEM: [%5ld] %c 0x%p (%d)\n",
519 m
->order
, (before_p
& 128) ? '*' : '+', m
->addr
, m
->num
);
521 if (options
& V_CRYPTO_MDEBUG_TIME
)
522 m
->time
= time(NULL
);
525 #if defined(CRYPTO_MDEBUG_BACKTRACE) && defined(__GNUC__)
526 m
->array_siz
= backtrace(m
->array
, OSSL_NELEM(m
->array
));
529 CRYPTO_THREADID_current(&tmp
.threadid
);
532 && (amim
= lh_APP_INFO_retrieve(amih
, &tmp
)) != NULL
) {
537 if ((mm
= lh_MEM_insert(mh
, m
)) != NULL
) {
538 /* Not good, but don't sweat it */
539 if (mm
->app_info
!= NULL
) {
540 mm
->app_info
->references
--;
545 MemCheck_on(); /* release MALLOC2 lock if num_disabled drops
553 void CRYPTO_dbg_free(void *addr
, int before_p
)
562 if (is_MemCheck_on() && (mh
!= NULL
)) {
563 MemCheck_off(); /* make sure we hold MALLOC2 lock */
566 mp
= lh_MEM_delete(mh
, &m
);
568 #ifdef LEVITTE_DEBUG_MEM
569 fprintf(stderr
, "LEVITTE_DEBUG_MEM: [%5ld] - 0x%p (%d)\n",
570 mp
->order
, mp
->addr
, mp
->num
);
572 app_info_free(mp
->app_info
);
576 MemCheck_on(); /* release MALLOC2 lock if num_disabled drops
585 void CRYPTO_dbg_realloc(void *addr1
, void *addr2
, int num
,
586 const char *file
, int line
, int before_p
)
590 #ifdef LEVITTE_DEBUG_MEM
592 "LEVITTE_DEBUG_MEM: --> CRYPTO_dbg_malloc(addr1 = %p, addr2 = %p, num = %d, file = \"%s\", line = %d, before_p = %d)\n",
593 addr1
, addr2
, num
, file
, line
, before_p
);
604 CRYPTO_dbg_malloc(addr2
, num
, file
, line
, 128 | before_p
);
608 if (is_MemCheck_on()) {
609 MemCheck_off(); /* make sure we hold MALLOC2 lock */
612 mp
= lh_MEM_delete(mh
, &m
);
614 #ifdef LEVITTE_DEBUG_MEM
616 "LEVITTE_DEBUG_MEM: [%5ld] * 0x%p (%d) -> 0x%p (%d)\n",
617 mp
->order
, mp
->addr
, mp
->num
, addr2
, num
);
621 #if defined(CRYPTO_MDEBUG_BACKTRACE) && defined(__GNUC__)
622 mp
->array_siz
= backtrace(mp
->array
, OSSL_NELEM(mp
->array
));
624 (void)lh_MEM_insert(mh
, mp
);
627 MemCheck_on(); /* release MALLOC2 lock if num_disabled drops
635 typedef struct mem_leak_st
{
642 static void print_leak_doall_arg(const MEM
*m
, MEM_LEAK
*l
)
648 struct tm
*lcl
= NULL
;
651 #define BUF_REMAIN (sizeof buf - (size_t)(bufp - buf))
653 /* Is one "leak" the BIO we were given? */
654 if (m
->addr
== (char *)l
->bio
) {
659 if (options
& V_CRYPTO_MDEBUG_TIME
) {
660 lcl
= localtime(&m
->time
);
662 BIO_snprintf(bufp
, BUF_REMAIN
, "[%02d:%02d:%02d] ",
663 lcl
->tm_hour
, lcl
->tm_min
, lcl
->tm_sec
);
664 bufp
+= strlen(bufp
);
667 BIO_snprintf(bufp
, BUF_REMAIN
, "%5lu file=%s, line=%d, ",
668 m
->order
, m
->file
, m
->line
);
669 bufp
+= strlen(bufp
);
671 if (options
& V_CRYPTO_MDEBUG_THREAD
) {
672 BIO_snprintf(bufp
, BUF_REMAIN
, "thread=%lu, ",
673 CRYPTO_THREADID_hash(&m
->threadid
));
674 bufp
+= strlen(bufp
);
677 BIO_snprintf(bufp
, BUF_REMAIN
, "number=%d, address=%p\n",
679 bufp
+= strlen(bufp
);
681 BIO_puts(l
->bio
, buf
);
689 CRYPTO_THREADID_cpy(&ti
, &amip
->threadid
);
696 memset(buf
, '>', ami_cnt
);
697 BIO_snprintf(buf
+ ami_cnt
, sizeof buf
- ami_cnt
,
698 " thread=%lu, file=%s, line=%d, info=\"",
699 CRYPTO_THREADID_hash(&amip
->threadid
), amip
->file
,
701 buf_len
= strlen(buf
);
702 info_len
= strlen(amip
->info
);
703 if (128 - buf_len
- 3 < info_len
) {
704 memcpy(buf
+ buf_len
, amip
->info
, 128 - buf_len
- 3);
707 OPENSSL_strlcpy(buf
+ buf_len
, amip
->info
, sizeof buf
- buf_len
);
708 buf_len
= strlen(buf
);
710 BIO_snprintf(buf
+ buf_len
, sizeof buf
- buf_len
, "\"\n");
712 BIO_puts(l
->bio
, buf
);
716 while (amip
&& !CRYPTO_THREADID_cmp(&amip
->threadid
, &ti
));
719 #ifdef LEVITTE_DEBUG_MEM
721 fprintf(stderr
, "Thread switch detected in backtrace!!!!\n");
725 #if defined(CRYPTO_MDEBUG_BACKTRACE) && defined(__GNUC__)
728 char **strings
= backtrace_symbols(m
->array
, m
->array_siz
);
729 for (i
= 0; i
< m
->array_siz
; i
++)
730 fprintf(stderr
, "##> %s\n", strings
[i
]);
737 static IMPLEMENT_LHASH_DOALL_ARG_FN(print_leak
, const MEM
, MEM_LEAK
)
739 void CRYPTO_mem_leaks(BIO
*b
)
743 if (mh
== NULL
&& amih
== NULL
)
746 MemCheck_off(); /* obtain MALLOC2 lock */
753 lh_MEM_doall_arg(mh
, LHASH_DOALL_ARG_FN(print_leak
), MEM_LEAK
, &ml
);
754 /* Don't count the BIO that was passed in as a "leak" */
755 if (ml
.seen
&& ml
.chunks
>= 1 && ml
.bytes
>= (int)sizeof (*b
)) {
757 ml
.bytes
-= (int)sizeof (*b
);
759 if (ml
.chunks
!= 0) {
760 BIO_printf(b
, "%ld bytes leaked in %d chunks\n", ml
.bytes
, ml
.chunks
);
761 #ifdef CRYPTO_MDEBUG_ABORT
766 * Make sure that, if we found no leaks, memory-leak debugging itself
767 * does not introduce memory leaks (which might irritate external
768 * debugging tools). (When someone enables leak checking, but does not
769 * call this function, we declare it to be their fault.) XXX This
770 * should be in CRYPTO_mem_leaks_cb, and CRYPTO_mem_leaks should be
771 * implemented by using CRYPTO_mem_leaks_cb. (Also there should be a
772 * variant of lh_doall_arg that takes a function pointer instead of a
773 * void *; this would obviate the ugly and illegal void_fn_to_char
774 * kludge in CRYPTO_mem_leaks_cb. Otherwise the code police will come
779 CRYPTO_w_lock(CRYPTO_LOCK_MALLOC
);
782 * avoid deadlock when lh_free() uses CRYPTO_dbg_free(), which uses
783 * CRYPTO_is_mem_check_on
785 old_mh_mode
= mh_mode
;
786 mh_mode
= CRYPTO_MEM_CHECK_OFF
;
791 if (lh_APP_INFO_num_items(amih
) == 0) {
792 lh_APP_INFO_free(amih
);
797 mh_mode
= old_mh_mode
;
798 CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC
);
800 MemCheck_on(); /* release MALLOC2 lock */
803 #ifndef OPENSSL_NO_STDIO
804 void CRYPTO_mem_leaks_fp(FILE *fp
)
811 * Need to turn off memory checking when allocated BIOs ... especially as
812 * we're creating them at a time when we're trying to check we've not
813 * left anything un-free()'d!!
816 b
= BIO_new(BIO_s_file());
820 BIO_set_fp(b
, fp
, BIO_NOCLOSE
);
827 * FIXME: We really don't allow much to the callback. For example, it has no
828 * chance of reaching the info stack for the item it processes. Should it
829 * really be this way? -- Richard Levitte
832 * NB: The prototypes have been typedef'd to CRYPTO_MEM_LEAK_CB inside
833 * crypto.h If this code is restructured, remove the callback type if it is
834 * no longer needed. -- Geoff Thorpe
838 * Can't pass CRYPTO_MEM_LEAK_CB directly to lh_MEM_doall_arg because it is a
839 * function pointer and conversion to void * is prohibited. Instead pass its
843 typedef CRYPTO_MEM_LEAK_CB
*PCRYPTO_MEM_LEAK_CB
;
845 static void cb_leak_doall_arg(const MEM
*m
, PCRYPTO_MEM_LEAK_CB
*cb
)
847 (*cb
) (m
->order
, m
->file
, m
->line
, m
->num
, m
->addr
);
850 static IMPLEMENT_LHASH_DOALL_ARG_FN(cb_leak
, const MEM
, PCRYPTO_MEM_LEAK_CB
)
852 void CRYPTO_mem_leaks_cb(CRYPTO_MEM_LEAK_CB
*cb
)
856 CRYPTO_w_lock(CRYPTO_LOCK_MALLOC2
);
857 lh_MEM_doall_arg(mh
, LHASH_DOALL_ARG_FN(cb_leak
), PCRYPTO_MEM_LEAK_CB
,
859 CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC2
);