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830 lines
26 KiB
830 lines
26 KiB
/* crypto/mem_dbg.c */ |
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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* All rights reserved. |
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* |
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* This package is an SSL implementation written |
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* by Eric Young (eay@cryptsoft.com). |
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* The implementation was written so as to conform with Netscapes SSL. |
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* |
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* This library is free for commercial and non-commercial use as long as |
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* the following conditions are aheared to. The following conditions |
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* apply to all code found in this distribution, be it the RC4, RSA, |
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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* included with this distribution is covered by the same copyright terms |
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* except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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* |
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* Copyright remains Eric Young's, and as such any Copyright notices in |
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* the code are not to be removed. |
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* If this package is used in a product, Eric Young should be given attribution |
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* as the author of the parts of the library used. |
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* This can be in the form of a textual message at program startup or |
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* in documentation (online or textual) provided with the package. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. All advertising materials mentioning features or use of this software |
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* must display the following acknowledgement: |
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* "This product includes cryptographic software written by |
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* Eric Young (eay@cryptsoft.com)" |
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* The word 'cryptographic' can be left out if the rouines from the library |
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* being used are not cryptographic related :-). |
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* 4. If you include any Windows specific code (or a derivative thereof) from |
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* the apps directory (application code) you must include an acknowledgement: |
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* The licence and distribution terms for any publically available version or |
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* derivative of this code cannot be changed. i.e. this code cannot simply be |
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* copied and put under another distribution licence |
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* [including the GNU Public Licence.] |
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*/ |
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/* ==================================================================== |
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* Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. All advertising materials mentioning features or use of this |
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* software must display the following acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
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* |
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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* endorse or promote products derived from this software without |
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* prior written permission. For written permission, please contact |
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* openssl-core@openssl.org. |
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* |
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* 5. Products derived from this software may not be called "OpenSSL" |
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* nor may "OpenSSL" appear in their names without prior written |
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* permission of the OpenSSL Project. |
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* |
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* 6. Redistributions of any form whatsoever must retain the following |
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* acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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* OF THE POSSIBILITY OF SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This product includes cryptographic software written by Eric Young |
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* (eay@cryptsoft.com). This product includes software written by Tim |
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* Hudson (tjh@cryptsoft.com). |
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* |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <time.h> |
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#include "cryptlib.h" |
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#include <openssl/crypto.h> |
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#include <openssl/buffer.h> |
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#include <openssl/bio.h> |
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#include <openssl/lhash.h> |
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static int mh_mode = CRYPTO_MEM_CHECK_OFF; |
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/* |
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* The state changes to CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE when |
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* the application asks for it (usually after library initialisation for |
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* which no book-keeping is desired). State CRYPTO_MEM_CHECK_ON exists only |
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* temporarily when the library thinks that certain allocations should not be |
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* checked (e.g. the data structures used for memory checking). It is not |
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* suitable as an initial state: the library will unexpectedly enable memory |
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* checking when it executes one of those sections that want to disable |
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* checking temporarily. State CRYPTO_MEM_CHECK_ENABLE without ..._ON makes |
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* no sense whatsoever. |
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*/ |
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static unsigned long order = 0; /* number of memory requests */ |
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DECLARE_LHASH_OF(MEM); |
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static LHASH_OF(MEM) *mh = NULL; /* hash-table of memory requests (address as |
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* key); access requires MALLOC2 lock */ |
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typedef struct app_mem_info_st |
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/*- |
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* For application-defined information (static C-string `info') |
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* to be displayed in memory leak list. |
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* Each thread has its own stack. For applications, there is |
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* CRYPTO_push_info("...") to push an entry, |
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* CRYPTO_pop_info() to pop an entry, |
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* CRYPTO_remove_all_info() to pop all entries. |
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*/ |
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{ |
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CRYPTO_THREADID threadid; |
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const char *file; |
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int line; |
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const char *info; |
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struct app_mem_info_st *next; /* tail of thread's stack */ |
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int references; |
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} APP_INFO; |
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static void app_info_free(APP_INFO *); |
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DECLARE_LHASH_OF(APP_INFO); |
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static LHASH_OF(APP_INFO) *amih = NULL; /* hash-table with those |
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* app_mem_info_st's that are at the |
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* top of their thread's stack (with |
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* `thread' as key); access requires |
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* MALLOC2 lock */ |
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|
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typedef struct mem_st |
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/* memory-block description */ |
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{ |
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void *addr; |
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int num; |
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const char *file; |
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int line; |
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CRYPTO_THREADID threadid; |
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unsigned long order; |
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time_t time; |
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APP_INFO *app_info; |
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} MEM; |
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static long options = /* extra information to be recorded */ |
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#if defined(CRYPTO_MDEBUG_TIME) || defined(CRYPTO_MDEBUG_ALL) |
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V_CRYPTO_MDEBUG_TIME | |
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#endif |
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#if defined(CRYPTO_MDEBUG_THREAD) || defined(CRYPTO_MDEBUG_ALL) |
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V_CRYPTO_MDEBUG_THREAD | |
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#endif |
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0; |
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static unsigned int num_disable = 0; /* num_disable > 0 iff mh_mode == |
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* CRYPTO_MEM_CHECK_ON (w/o ..._ENABLE) */ |
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/* |
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* Valid iff num_disable > 0. CRYPTO_LOCK_MALLOC2 is locked exactly in this |
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* case (by the thread named in disabling_thread). |
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*/ |
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static CRYPTO_THREADID disabling_threadid; |
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|
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static void app_info_free(APP_INFO *inf) |
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{ |
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if (--(inf->references) <= 0) { |
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if (inf->next != NULL) { |
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app_info_free(inf->next); |
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} |
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OPENSSL_free(inf); |
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} |
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} |
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int CRYPTO_mem_ctrl(int mode) |
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{ |
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int ret = mh_mode; |
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CRYPTO_w_lock(CRYPTO_LOCK_MALLOC); |
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switch (mode) { |
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/* |
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* for applications (not to be called while multiple threads use the |
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* library): |
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*/ |
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case CRYPTO_MEM_CHECK_ON: /* aka MemCheck_start() */ |
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mh_mode = CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE; |
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num_disable = 0; |
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break; |
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case CRYPTO_MEM_CHECK_OFF: /* aka MemCheck_stop() */ |
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mh_mode = 0; |
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num_disable = 0; /* should be true *before* MemCheck_stop is |
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* used, or there'll be a lot of confusion */ |
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break; |
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/* switch off temporarily (for library-internal use): */ |
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case CRYPTO_MEM_CHECK_DISABLE: /* aka MemCheck_off() */ |
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if (mh_mode & CRYPTO_MEM_CHECK_ON) { |
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CRYPTO_THREADID cur; |
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CRYPTO_THREADID_current(&cur); |
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/* see if we don't have the MALLOC2 lock already */ |
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if (!num_disable |
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|| CRYPTO_THREADID_cmp(&disabling_threadid, &cur)) { |
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/* |
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* Long-time lock CRYPTO_LOCK_MALLOC2 must not be claimed |
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* while we're holding CRYPTO_LOCK_MALLOC, or we'll deadlock |
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* if somebody else holds CRYPTO_LOCK_MALLOC2 (and cannot |
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* release it because we block entry to this function). Give |
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* them a chance, first, and then claim the locks in |
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* appropriate order (long-time lock first). |
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*/ |
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CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC); |
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/* |
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* Note that after we have waited for CRYPTO_LOCK_MALLOC2 and |
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* CRYPTO_LOCK_MALLOC, we'll still be in the right "case" and |
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* "if" branch because MemCheck_start and MemCheck_stop may |
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* never be used while there are multiple OpenSSL threads. |
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*/ |
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CRYPTO_w_lock(CRYPTO_LOCK_MALLOC2); |
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CRYPTO_w_lock(CRYPTO_LOCK_MALLOC); |
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mh_mode &= ~CRYPTO_MEM_CHECK_ENABLE; |
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CRYPTO_THREADID_cpy(&disabling_threadid, &cur); |
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} |
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num_disable++; |
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} |
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break; |
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case CRYPTO_MEM_CHECK_ENABLE: /* aka MemCheck_on() */ |
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if (mh_mode & CRYPTO_MEM_CHECK_ON) { |
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if (num_disable) { /* always true, or something is going wrong */ |
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num_disable--; |
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if (num_disable == 0) { |
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mh_mode |= CRYPTO_MEM_CHECK_ENABLE; |
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CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC2); |
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} |
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} |
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} |
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break; |
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default: |
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break; |
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} |
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CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC); |
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return (ret); |
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} |
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int CRYPTO_is_mem_check_on(void) |
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{ |
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int ret = 0; |
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if (mh_mode & CRYPTO_MEM_CHECK_ON) { |
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CRYPTO_THREADID cur; |
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CRYPTO_THREADID_current(&cur); |
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CRYPTO_r_lock(CRYPTO_LOCK_MALLOC); |
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ret = (mh_mode & CRYPTO_MEM_CHECK_ENABLE) |
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|| CRYPTO_THREADID_cmp(&disabling_threadid, &cur); |
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CRYPTO_r_unlock(CRYPTO_LOCK_MALLOC); |
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} |
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return (ret); |
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} |
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void CRYPTO_dbg_set_options(long bits) |
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{ |
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options = bits; |
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} |
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long CRYPTO_dbg_get_options(void) |
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{ |
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return options; |
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} |
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static int mem_cmp(const MEM *a, const MEM *b) |
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{ |
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#ifdef _WIN64 |
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const char *ap = (const char *)a->addr, *bp = (const char *)b->addr; |
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if (ap == bp) |
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return 0; |
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else if (ap > bp) |
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return 1; |
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else |
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return -1; |
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#else |
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return (const char *)a->addr - (const char *)b->addr; |
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#endif |
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} |
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static IMPLEMENT_LHASH_COMP_FN(mem, MEM) |
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static unsigned long mem_hash(const MEM *a) |
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{ |
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unsigned long ret; |
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ret = (unsigned long)a->addr; |
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ret = ret * 17851 + (ret >> 14) * 7 + (ret >> 4) * 251; |
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return (ret); |
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} |
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static IMPLEMENT_LHASH_HASH_FN(mem, MEM) |
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|
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/* static int app_info_cmp(APP_INFO *a, APP_INFO *b) */ |
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static int app_info_cmp(const void *a_void, const void *b_void) |
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{ |
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return CRYPTO_THREADID_cmp(&((const APP_INFO *)a_void)->threadid, |
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&((const APP_INFO *)b_void)->threadid); |
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} |
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static IMPLEMENT_LHASH_COMP_FN(app_info, APP_INFO) |
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static unsigned long app_info_hash(const APP_INFO *a) |
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{ |
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unsigned long ret; |
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ret = CRYPTO_THREADID_hash(&a->threadid); |
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/* This is left in as a "who am I to question legacy?" measure */ |
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ret = ret * 17851 + (ret >> 14) * 7 + (ret >> 4) * 251; |
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return (ret); |
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} |
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static IMPLEMENT_LHASH_HASH_FN(app_info, APP_INFO) |
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static APP_INFO *pop_info(void) |
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{ |
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APP_INFO tmp; |
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APP_INFO *ret = NULL; |
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|
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if (amih != NULL) { |
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CRYPTO_THREADID_current(&tmp.threadid); |
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if ((ret = lh_APP_INFO_delete(amih, &tmp)) != NULL) { |
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APP_INFO *next = ret->next; |
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|
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if (next != NULL) { |
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next->references++; |
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(void)lh_APP_INFO_insert(amih, next); |
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} |
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#ifdef LEVITTE_DEBUG_MEM |
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if (CRYPTO_THREADID_cmp(&ret->threadid, &tmp.threadid)) { |
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fprintf(stderr, |
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"pop_info(): deleted info has other thread ID (%lu) than the current thread (%lu)!!!!\n", |
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CRYPTO_THREADID_hash(&ret->threadid), |
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CRYPTO_THREADID_hash(&tmp.threadid)); |
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abort(); |
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} |
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#endif |
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if (--(ret->references) <= 0) { |
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ret->next = NULL; |
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if (next != NULL) |
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next->references--; |
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OPENSSL_free(ret); |
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} |
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} |
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} |
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return (ret); |
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} |
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int CRYPTO_push_info_(const char *info, const char *file, int line) |
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{ |
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APP_INFO *ami, *amim; |
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int ret = 0; |
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|
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if (is_MemCheck_on()) { |
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MemCheck_off(); /* obtain MALLOC2 lock */ |
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|
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if ((ami = (APP_INFO *)OPENSSL_malloc(sizeof(APP_INFO))) == NULL) { |
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ret = 0; |
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goto err; |
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} |
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if (amih == NULL) { |
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if ((amih = lh_APP_INFO_new()) == NULL) { |
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OPENSSL_free(ami); |
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ret = 0; |
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goto err; |
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} |
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} |
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CRYPTO_THREADID_current(&ami->threadid); |
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ami->file = file; |
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ami->line = line; |
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ami->info = info; |
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ami->references = 1; |
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ami->next = NULL; |
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|
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if ((amim = lh_APP_INFO_insert(amih, ami)) != NULL) { |
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#ifdef LEVITTE_DEBUG_MEM |
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if (CRYPTO_THREADID_cmp(&ami->threadid, &amim->threadid)) { |
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fprintf(stderr, |
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"CRYPTO_push_info(): previous info has other thread ID (%lu) than the current thread (%lu)!!!!\n", |
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CRYPTO_THREADID_hash(&amim->threadid), |
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CRYPTO_THREADID_hash(&ami->threadid)); |
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abort(); |
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} |
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#endif |
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ami->next = amim; |
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} |
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err: |
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MemCheck_on(); /* release MALLOC2 lock */ |
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} |
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|
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return (ret); |
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} |
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|
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int CRYPTO_pop_info(void) |
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{ |
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int ret = 0; |
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|
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if (is_MemCheck_on()) { /* _must_ be true, or something went severely |
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* wrong */ |
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MemCheck_off(); /* obtain MALLOC2 lock */ |
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|
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ret = (pop_info() != NULL); |
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|
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MemCheck_on(); /* release MALLOC2 lock */ |
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} |
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return (ret); |
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} |
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|
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int CRYPTO_remove_all_info(void) |
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{ |
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int ret = 0; |
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|
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if (is_MemCheck_on()) { /* _must_ be true */ |
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MemCheck_off(); /* obtain MALLOC2 lock */ |
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|
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while (pop_info() != NULL) |
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ret++; |
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|
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MemCheck_on(); /* release MALLOC2 lock */ |
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} |
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return (ret); |
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} |
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|
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static unsigned long break_order_num = 0; |
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void CRYPTO_dbg_malloc(void *addr, int num, const char *file, int line, |
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int before_p) |
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{ |
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MEM *m, *mm; |
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APP_INFO tmp, *amim; |
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|
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switch (before_p & 127) { |
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case 0: |
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break; |
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case 1: |
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if (addr == NULL) |
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break; |
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|
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if (is_MemCheck_on()) { |
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MemCheck_off(); /* make sure we hold MALLOC2 lock */ |
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if ((m = (MEM *)OPENSSL_malloc(sizeof(MEM))) == NULL) { |
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OPENSSL_free(addr); |
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MemCheck_on(); /* release MALLOC2 lock if num_disabled drops |
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* to 0 */ |
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return; |
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} |
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if (mh == NULL) { |
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if ((mh = lh_MEM_new()) == NULL) { |
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OPENSSL_free(addr); |
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OPENSSL_free(m); |
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addr = NULL; |
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goto err; |
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} |
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} |
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|
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m->addr = addr; |
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m->file = file; |
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m->line = line; |
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m->num = num; |
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if (options & V_CRYPTO_MDEBUG_THREAD) |
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CRYPTO_THREADID_current(&m->threadid); |
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else |
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memset(&m->threadid, 0, sizeof(m->threadid)); |
|
|
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if (order == break_order_num) { |
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/* BREAK HERE */ |
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m->order = order; |
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} |
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m->order = order++; |
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#ifdef LEVITTE_DEBUG_MEM |
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fprintf(stderr, "LEVITTE_DEBUG_MEM: [%5ld] %c 0x%p (%d)\n", |
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m->order, (before_p & 128) ? '*' : '+', m->addr, m->num); |
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#endif |
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if (options & V_CRYPTO_MDEBUG_TIME) |
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m->time = time(NULL); |
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else |
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m->time = 0; |
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|
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CRYPTO_THREADID_current(&tmp.threadid); |
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m->app_info = NULL; |
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if (amih != NULL |
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&& (amim = lh_APP_INFO_retrieve(amih, &tmp)) != NULL) { |
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m->app_info = amim; |
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amim->references++; |
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} |
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|
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if ((mm = lh_MEM_insert(mh, m)) != NULL) { |
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/* Not good, but don't sweat it */ |
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if (mm->app_info != NULL) { |
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mm->app_info->references--; |
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} |
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OPENSSL_free(mm); |
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} |
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err: |
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MemCheck_on(); /* release MALLOC2 lock if num_disabled drops |
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* to 0 */ |
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} |
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break; |
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} |
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return; |
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} |
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|
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void CRYPTO_dbg_free(void *addr, int before_p) |
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{ |
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MEM m, *mp; |
|
|
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switch (before_p) { |
|
case 0: |
|
if (addr == NULL) |
|
break; |
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|
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if (is_MemCheck_on() && (mh != NULL)) { |
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MemCheck_off(); /* make sure we hold MALLOC2 lock */ |
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|
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m.addr = addr; |
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mp = lh_MEM_delete(mh, &m); |
|
if (mp != NULL) { |
|
#ifdef LEVITTE_DEBUG_MEM |
|
fprintf(stderr, "LEVITTE_DEBUG_MEM: [%5ld] - 0x%p (%d)\n", |
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mp->order, mp->addr, mp->num); |
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#endif |
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if (mp->app_info != NULL) |
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app_info_free(mp->app_info); |
|
OPENSSL_free(mp); |
|
} |
|
|
|
MemCheck_on(); /* release MALLOC2 lock if num_disabled drops |
|
* to 0 */ |
|
} |
|
break; |
|
case 1: |
|
break; |
|
} |
|
} |
|
|
|
void CRYPTO_dbg_realloc(void *addr1, void *addr2, int num, |
|
const char *file, int line, int before_p) |
|
{ |
|
MEM m, *mp; |
|
|
|
#ifdef LEVITTE_DEBUG_MEM |
|
fprintf(stderr, |
|
"LEVITTE_DEBUG_MEM: --> CRYPTO_dbg_malloc(addr1 = %p, addr2 = %p, num = %d, file = \"%s\", line = %d, before_p = %d)\n", |
|
addr1, addr2, num, file, line, before_p); |
|
#endif |
|
|
|
switch (before_p) { |
|
case 0: |
|
break; |
|
case 1: |
|
if (addr2 == NULL) |
|
break; |
|
|
|
if (addr1 == NULL) { |
|
CRYPTO_dbg_malloc(addr2, num, file, line, 128 | before_p); |
|
break; |
|
} |
|
|
|
if (is_MemCheck_on()) { |
|
MemCheck_off(); /* make sure we hold MALLOC2 lock */ |
|
|
|
m.addr = addr1; |
|
mp = lh_MEM_delete(mh, &m); |
|
if (mp != NULL) { |
|
#ifdef LEVITTE_DEBUG_MEM |
|
fprintf(stderr, |
|
"LEVITTE_DEBUG_MEM: [%5ld] * 0x%p (%d) -> 0x%p (%d)\n", |
|
mp->order, mp->addr, mp->num, addr2, num); |
|
#endif |
|
mp->addr = addr2; |
|
mp->num = num; |
|
(void)lh_MEM_insert(mh, mp); |
|
} |
|
|
|
MemCheck_on(); /* release MALLOC2 lock if num_disabled drops |
|
* to 0 */ |
|
} |
|
break; |
|
} |
|
return; |
|
} |
|
|
|
typedef struct mem_leak_st { |
|
BIO *bio; |
|
int chunks; |
|
long bytes; |
|
} MEM_LEAK; |
|
|
|
static void print_leak_doall_arg(const MEM *m, MEM_LEAK *l) |
|
{ |
|
char buf[1024]; |
|
char *bufp = buf; |
|
APP_INFO *amip; |
|
int ami_cnt; |
|
struct tm *lcl = NULL; |
|
CRYPTO_THREADID ti; |
|
|
|
#define BUF_REMAIN (sizeof buf - (size_t)(bufp - buf)) |
|
|
|
if (m->addr == (char *)l->bio) |
|
return; |
|
|
|
if (options & V_CRYPTO_MDEBUG_TIME) { |
|
lcl = localtime(&m->time); |
|
|
|
BIO_snprintf(bufp, BUF_REMAIN, "[%02d:%02d:%02d] ", |
|
lcl->tm_hour, lcl->tm_min, lcl->tm_sec); |
|
bufp += strlen(bufp); |
|
} |
|
|
|
BIO_snprintf(bufp, BUF_REMAIN, "%5lu file=%s, line=%d, ", |
|
m->order, m->file, m->line); |
|
bufp += strlen(bufp); |
|
|
|
if (options & V_CRYPTO_MDEBUG_THREAD) { |
|
BIO_snprintf(bufp, BUF_REMAIN, "thread=%lu, ", |
|
CRYPTO_THREADID_hash(&m->threadid)); |
|
bufp += strlen(bufp); |
|
} |
|
|
|
BIO_snprintf(bufp, BUF_REMAIN, "number=%d, address=%08lX\n", |
|
m->num, (unsigned long)m->addr); |
|
bufp += strlen(bufp); |
|
|
|
BIO_puts(l->bio, buf); |
|
|
|
l->chunks++; |
|
l->bytes += m->num; |
|
|
|
amip = m->app_info; |
|
ami_cnt = 0; |
|
if (!amip) |
|
return; |
|
CRYPTO_THREADID_cpy(&ti, &amip->threadid); |
|
|
|
do { |
|
int buf_len; |
|
int info_len; |
|
|
|
ami_cnt++; |
|
memset(buf, '>', ami_cnt); |
|
BIO_snprintf(buf + ami_cnt, sizeof buf - ami_cnt, |
|
" thread=%lu, file=%s, line=%d, info=\"", |
|
CRYPTO_THREADID_hash(&amip->threadid), amip->file, |
|
amip->line); |
|
buf_len = strlen(buf); |
|
info_len = strlen(amip->info); |
|
if (128 - buf_len - 3 < info_len) { |
|
memcpy(buf + buf_len, amip->info, 128 - buf_len - 3); |
|
buf_len = 128 - 3; |
|
} else { |
|
BUF_strlcpy(buf + buf_len, amip->info, sizeof buf - buf_len); |
|
buf_len = strlen(buf); |
|
} |
|
BIO_snprintf(buf + buf_len, sizeof buf - buf_len, "\"\n"); |
|
|
|
BIO_puts(l->bio, buf); |
|
|
|
amip = amip->next; |
|
} |
|
while (amip && !CRYPTO_THREADID_cmp(&amip->threadid, &ti)); |
|
|
|
#ifdef LEVITTE_DEBUG_MEM |
|
if (amip) { |
|
fprintf(stderr, "Thread switch detected in backtrace!!!!\n"); |
|
abort(); |
|
} |
|
#endif |
|
} |
|
|
|
static IMPLEMENT_LHASH_DOALL_ARG_FN(print_leak, const MEM, MEM_LEAK) |
|
|
|
void CRYPTO_mem_leaks(BIO *b) |
|
{ |
|
MEM_LEAK ml; |
|
|
|
if (mh == NULL && amih == NULL) |
|
return; |
|
|
|
MemCheck_off(); /* obtain MALLOC2 lock */ |
|
|
|
ml.bio = b; |
|
ml.bytes = 0; |
|
ml.chunks = 0; |
|
if (mh != NULL) |
|
lh_MEM_doall_arg(mh, LHASH_DOALL_ARG_FN(print_leak), MEM_LEAK, &ml); |
|
if (ml.chunks != 0) { |
|
BIO_printf(b, "%ld bytes leaked in %d chunks\n", ml.bytes, ml.chunks); |
|
#ifdef CRYPTO_MDEBUG_ABORT |
|
abort(); |
|
#endif |
|
} else { |
|
/* |
|
* Make sure that, if we found no leaks, memory-leak debugging itself |
|
* does not introduce memory leaks (which might irritate external |
|
* debugging tools). (When someone enables leak checking, but does not |
|
* call this function, we declare it to be their fault.) XXX This |
|
* should be in CRYPTO_mem_leaks_cb, and CRYPTO_mem_leaks should be |
|
* implemented by using CRYPTO_mem_leaks_cb. (Also there should be a |
|
* variant of lh_doall_arg that takes a function pointer instead of a |
|
* void *; this would obviate the ugly and illegal void_fn_to_char |
|
* kludge in CRYPTO_mem_leaks_cb. Otherwise the code police will come |
|
* and get us.) |
|
*/ |
|
int old_mh_mode; |
|
|
|
CRYPTO_w_lock(CRYPTO_LOCK_MALLOC); |
|
|
|
/* |
|
* avoid deadlock when lh_free() uses CRYPTO_dbg_free(), which uses |
|
* CRYPTO_is_mem_check_on |
|
*/ |
|
old_mh_mode = mh_mode; |
|
mh_mode = CRYPTO_MEM_CHECK_OFF; |
|
|
|
if (mh != NULL) { |
|
lh_MEM_free(mh); |
|
mh = NULL; |
|
} |
|
if (amih != NULL) { |
|
if (lh_APP_INFO_num_items(amih) == 0) { |
|
lh_APP_INFO_free(amih); |
|
amih = NULL; |
|
} |
|
} |
|
|
|
mh_mode = old_mh_mode; |
|
CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC); |
|
} |
|
MemCheck_on(); /* release MALLOC2 lock */ |
|
} |
|
|
|
#ifndef OPENSSL_NO_FP_API |
|
void CRYPTO_mem_leaks_fp(FILE *fp) |
|
{ |
|
BIO *b; |
|
|
|
if (mh == NULL) |
|
return; |
|
/* |
|
* Need to turn off memory checking when allocated BIOs ... especially as |
|
* we're creating them at a time when we're trying to check we've not |
|
* left anything un-free()'d!! |
|
*/ |
|
MemCheck_off(); |
|
b = BIO_new(BIO_s_file()); |
|
MemCheck_on(); |
|
if (!b) |
|
return; |
|
BIO_set_fp(b, fp, BIO_NOCLOSE); |
|
CRYPTO_mem_leaks(b); |
|
BIO_free(b); |
|
} |
|
#endif |
|
|
|
/* |
|
* FIXME: We really don't allow much to the callback. For example, it has no |
|
* chance of reaching the info stack for the item it processes. Should it |
|
* really be this way? -- Richard Levitte |
|
*/ |
|
/* |
|
* NB: The prototypes have been typedef'd to CRYPTO_MEM_LEAK_CB inside |
|
* crypto.h If this code is restructured, remove the callback type if it is |
|
* no longer needed. -- Geoff Thorpe |
|
*/ |
|
|
|
/* |
|
* Can't pass CRYPTO_MEM_LEAK_CB directly to lh_MEM_doall_arg because it is a |
|
* function pointer and conversion to void * is prohibited. Instead pass its |
|
* address |
|
*/ |
|
|
|
typedef CRYPTO_MEM_LEAK_CB *PCRYPTO_MEM_LEAK_CB; |
|
|
|
static void cb_leak_doall_arg(const MEM *m, PCRYPTO_MEM_LEAK_CB *cb) |
|
{ |
|
(*cb) (m->order, m->file, m->line, m->num, m->addr); |
|
} |
|
|
|
static IMPLEMENT_LHASH_DOALL_ARG_FN(cb_leak, const MEM, PCRYPTO_MEM_LEAK_CB) |
|
|
|
void CRYPTO_mem_leaks_cb(CRYPTO_MEM_LEAK_CB *cb) |
|
{ |
|
if (mh == NULL) |
|
return; |
|
CRYPTO_w_lock(CRYPTO_LOCK_MALLOC2); |
|
lh_MEM_doall_arg(mh, LHASH_DOALL_ARG_FN(cb_leak), PCRYPTO_MEM_LEAK_CB, |
|
&cb); |
|
CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC2); |
|
}
|
|
|