/* crypto/mem_dbg.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.] */ /* ==================================================================== * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. * * 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 above 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 acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * openssl-core@openssl.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED 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 OpenSSL PROJECT OR * ITS 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. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ #include #include #include #include "cryptlib.h" #include #include #include #include static int mh_mode=CRYPTO_MEM_CHECK_OFF; /* The state changes to CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE * when the application asks for it (usually after library initialisation * for which no book-keeping is desired). * * State CRYPTO_MEM_CHECK_ON exists only temporarily when the library * thinks that certain allocations should not be checked (e.g. the data * structures used for memory checking). It is not suitable as an initial * state: the library will unexpectedly enable memory checking when it * executes one of those sections that want to disable checking * temporarily. * * State CRYPTO_MEM_CHECK_ENABLE without ..._ON makes no sense whatsoever. */ static unsigned long order = 0; /* number of memory requests */ DECLARE_LHASH_OF(MEM); static LHASH_OF(MEM) *mh=NULL; /* hash-table of memory requests * (address as key); access requires * MALLOC2 lock */ typedef struct app_mem_info_st /* For application-defined information (static C-string `info') * to be displayed in memory leak list. * Each thread has its own stack. For applications, there is * CRYPTO_push_info("...") to push an entry, * CRYPTO_pop_info() to pop an entry, * CRYPTO_remove_all_info() to pop all entries. */ { unsigned long thread_id; void *thread_idptr; const char *file; int line; const char *info; struct app_mem_info_st *next; /* tail of thread's stack */ int references; } APP_INFO; static void app_info_free(APP_INFO *); DECLARE_LHASH_OF(APP_INFO); static LHASH_OF(APP_INFO) *amih=NULL; /* hash-table with those * app_mem_info_st's that are at * the top of their thread's * stack (with `thread' as key); * access requires MALLOC2 * lock */ typedef struct mem_st /* memory-block description */ { void *addr; int num; const char *file; int line; unsigned long thread_id; void *thread_idptr; unsigned long order; time_t time; APP_INFO *app_info; } MEM; static long options = /* extra information to be recorded */ #if defined(CRYPTO_MDEBUG_TIME) || defined(CRYPTO_MDEBUG_ALL) V_CRYPTO_MDEBUG_TIME | #endif #if defined(CRYPTO_MDEBUG_THREAD) || defined(CRYPTO_MDEBUG_ALL) V_CRYPTO_MDEBUG_THREAD | #endif 0; static unsigned int num_disable = 0; /* num_disable > 0 * iff * mh_mode == CRYPTO_MEM_CHECK_ON (w/o ..._ENABLE) */ /* The following two variables, disabling_thread_id and disabling_thread_idptr, * are valid iff num_disable > 0. CRYPTO_LOCK_MALLOC2 is locked exactly in * this case (by the thread named in disabling_thread_id / disabling_thread_idptr). */ static unsigned long disabling_thread_id = 0; static void *disabling_thread_idptr = NULL; static void app_info_free(APP_INFO *inf) { if (--(inf->references) <= 0) { if (inf->next != NULL) { app_info_free(inf->next); } OPENSSL_free(inf); } } int CRYPTO_mem_ctrl(int mode) { int ret=mh_mode; CRYPTO_w_lock(CRYPTO_LOCK_MALLOC); switch (mode) { /* for applications (not to be called while multiple threads * use the library): */ case CRYPTO_MEM_CHECK_ON: /* aka MemCheck_start() */ mh_mode = CRYPTO_MEM_CHECK_ON|CRYPTO_MEM_CHECK_ENABLE; num_disable = 0; break; case CRYPTO_MEM_CHECK_OFF: /* aka MemCheck_stop() */ mh_mode = 0; num_disable = 0; /* should be true *before* MemCheck_stop is used, or there'll be a lot of confusion */ break; /* switch off temporarily (for library-internal use): */ case CRYPTO_MEM_CHECK_DISABLE: /* aka MemCheck_off() */ if (mh_mode & CRYPTO_MEM_CHECK_ON) { if (!num_disable || (disabling_thread_id != CRYPTO_thread_id()) || (disabling_thread_idptr != CRYPTO_thread_idptr())) /* otherwise we already have the MALLOC2 lock */ { /* Long-time lock CRYPTO_LOCK_MALLOC2 must not be claimed while * we're holding CRYPTO_LOCK_MALLOC, or we'll deadlock if * somebody else holds CRYPTO_LOCK_MALLOC2 (and cannot release * it because we block entry to this function). * Give them a chance, first, and then claim the locks in * appropriate order (long-time lock first). */ CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC); /* Note that after we have waited for CRYPTO_LOCK_MALLOC2 * and CRYPTO_LOCK_MALLOC, we'll still be in the right * "case" and "if" branch because MemCheck_start and * MemCheck_stop may never be used while there are multiple * OpenSSL threads. */ CRYPTO_w_lock(CRYPTO_LOCK_MALLOC2); CRYPTO_w_lock(CRYPTO_LOCK_MALLOC); mh_mode &= ~CRYPTO_MEM_CHECK_ENABLE; disabling_thread_id=CRYPTO_thread_id(); disabling_thread_idptr=CRYPTO_thread_idptr(); } num_disable++; } break; case CRYPTO_MEM_CHECK_ENABLE: /* aka MemCheck_on() */ if (mh_mode & CRYPTO_MEM_CHECK_ON) { if (num_disable) /* always true, or something is going wrong */ { num_disable--; if (num_disable == 0) { mh_mode|=CRYPTO_MEM_CHECK_ENABLE; CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC2); } } } break; default: break; } CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC); return(ret); } int CRYPTO_is_mem_check_on(void) { int ret = 0; if (mh_mode & CRYPTO_MEM_CHECK_ON) { CRYPTO_r_lock(CRYPTO_LOCK_MALLOC); ret = (mh_mode & CRYPTO_MEM_CHECK_ENABLE) || (disabling_thread_id != CRYPTO_thread_id()) || (disabling_thread_idptr != CRYPTO_thread_idptr()); CRYPTO_r_unlock(CRYPTO_LOCK_MALLOC); } return(ret); } void CRYPTO_dbg_set_options(long bits) { options = bits; } long CRYPTO_dbg_get_options(void) { return options; } static int mem_cmp(const MEM *a, const MEM *b) { #ifdef _WIN64 const char *a=(const char *)a->addr, *b=(const char *)b->addr; if (a==b) return 0; else if (a>b) return 1; else return -1; #else return (const char *)a->addr - (const char *)b->addr; #endif } static IMPLEMENT_LHASH_COMP_FN(mem, MEM) static unsigned long mem_hash(const MEM *a) { unsigned long ret; ret=(unsigned long)a->addr; ret=ret*17851+(ret>>14)*7+(ret>>4)*251; return(ret); } static IMPLEMENT_LHASH_HASH_FN(mem, MEM) /* static int app_info_cmp(APP_INFO *a, APP_INFO *b) */ static int app_info_cmp(const void *a_void, const void *b_void) { return (((const APP_INFO *)a_void)->thread_id != ((const APP_INFO *)b_void)->thread_id) || (((const APP_INFO *)a_void)->thread_idptr != ((const APP_INFO *)b_void)->thread_idptr); } static IMPLEMENT_LHASH_COMP_FN(app_info, APP_INFO) static unsigned long app_info_hash(const APP_INFO *a) { unsigned long id1, id2; unsigned long ret; id1=(unsigned long)a->thread_id; id2=(unsigned long)a->thread_idptr; ret = id1 + id2; ret=ret*17851+(ret>>14)*7+(ret>>4)*251; return(ret); } static IMPLEMENT_LHASH_HASH_FN(app_info, APP_INFO) static APP_INFO *pop_info(void) { APP_INFO tmp; APP_INFO *ret = NULL; if (amih != NULL) { tmp.thread_id=CRYPTO_thread_id(); tmp.thread_idptr=CRYPTO_thread_idptr(); if ((ret=lh_APP_INFO_delete(amih,&tmp)) != NULL) { APP_INFO *next=ret->next; if (next != NULL) { next->references++; (void)lh_APP_INFO_insert(amih,next); } #ifdef LEVITTE_DEBUG_MEM if (ret->thread_id != tmp.thread_id || ret->thread_idptr != tmp.thread_idptr) { fprintf(stderr, "pop_info(): deleted info has other thread ID (%lu/%p) than the current thread (%lu/%p)!!!!\n", ret->thread_id, ret->thread_idptr, tmp.thread_id, tmp.thread_idptr); abort(); } #endif if (--(ret->references) <= 0) { ret->next = NULL; if (next != NULL) next->references--; OPENSSL_free(ret); } } } return(ret); } int CRYPTO_push_info_(const char *info, const char *file, int line) { APP_INFO *ami, *amim; int ret=0; if (is_MemCheck_on()) { MemCheck_off(); /* obtain MALLOC2 lock */ if ((ami = (APP_INFO *)OPENSSL_malloc(sizeof(APP_INFO))) == NULL) { ret=0; goto err; } if (amih == NULL) { if ((amih=lh_APP_INFO_new()) == NULL) { OPENSSL_free(ami); ret=0; goto err; } } ami->thread_id=CRYPTO_thread_id(); ami->thread_idptr=CRYPTO_thread_idptr(); ami->file=file; ami->line=line; ami->info=info; ami->references=1; ami->next=NULL; if ((amim=lh_APP_INFO_insert(amih,ami)) != NULL) { #ifdef LEVITTE_DEBUG_MEM if (ami->thread_id != amim->thread_id || ami->thread_idptr != amim->thread_idptr) { fprintf(stderr, "CRYPTO_push_info(): previous info has other thread ID (%lu/%p) than the current thread (%lu/%p)!!!!\n", amim->thread_id, amim->thread_idptr, ami->thread_id, ami->thread_idptr); abort(); } #endif ami->next=amim; } err: MemCheck_on(); /* release MALLOC2 lock */ } return(ret); } int CRYPTO_pop_info(void) { int ret=0; if (is_MemCheck_on()) /* _must_ be true, or something went severely wrong */ { MemCheck_off(); /* obtain MALLOC2 lock */ ret=(pop_info() != NULL); MemCheck_on(); /* release MALLOC2 lock */ } return(ret); } int CRYPTO_remove_all_info(void) { int ret=0; if (is_MemCheck_on()) /* _must_ be true */ { MemCheck_off(); /* obtain MALLOC2 lock */ while(pop_info() != NULL) ret++; MemCheck_on(); /* release MALLOC2 lock */ } return(ret); } static unsigned long break_order_num=0; void CRYPTO_dbg_malloc(void *addr, int num, const char *file, int line, int before_p) { MEM *m,*mm; APP_INFO tmp,*amim; switch(before_p & 127) { case 0: break; case 1: if (addr == NULL) break; if (is_MemCheck_on()) { MemCheck_off(); /* make sure we hold MALLOC2 lock */ if ((m=(MEM *)OPENSSL_malloc(sizeof(MEM))) == NULL) { OPENSSL_free(addr); MemCheck_on(); /* release MALLOC2 lock * if num_disabled drops to 0 */ return; } if (mh == NULL) { if ((mh=lh_MEM_new()) == NULL) { OPENSSL_free(addr); OPENSSL_free(m); addr=NULL; goto err; } } m->addr=addr; m->file=file; m->line=line; m->num=num; if (options & V_CRYPTO_MDEBUG_THREAD) { m->thread_id=CRYPTO_thread_id(); m->thread_idptr=CRYPTO_thread_idptr(); } else { m->thread_id=0; m->thread_idptr=NULL; } if (order == break_order_num) { /* BREAK HERE */ m->order=order; } m->order=order++; #ifdef LEVITTE_DEBUG_MEM fprintf(stderr, "LEVITTE_DEBUG_MEM: [%5ld] %c 0x%p (%d)\n", m->order, (before_p & 128) ? '*' : '+', m->addr, m->num); #endif if (options & V_CRYPTO_MDEBUG_TIME) m->time=time(NULL); else m->time=0; tmp.thread_id=CRYPTO_thread_id(); tmp.thread_idptr=CRYPTO_thread_idptr(); m->app_info=NULL; if (amih != NULL && (amim=lh_APP_INFO_retrieve(amih,&tmp)) != NULL) { m->app_info = amim; amim->references++; } if ((mm=lh_MEM_insert(mh, m)) != NULL) { /* Not good, but don't sweat it */ if (mm->app_info != NULL) { mm->app_info->references--; } OPENSSL_free(mm); } err: MemCheck_on(); /* release MALLOC2 lock * if num_disabled drops to 0 */ } break; } return; } void CRYPTO_dbg_free(void *addr, int before_p) { MEM m,*mp; switch(before_p) { case 0: if (addr == NULL) break; if (is_MemCheck_on() && (mh != NULL)) { MemCheck_off(); /* make sure we hold MALLOC2 lock */ m.addr=addr; mp=lh_MEM_delete(mh,&m); if (mp != NULL) { #ifdef LEVITTE_DEBUG_MEM fprintf(stderr, "LEVITTE_DEBUG_MEM: [%5ld] - 0x%p (%d)\n", mp->order, mp->addr, mp->num); #endif if (mp->app_info != NULL) 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; unsigned long ti; void *tip; #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/%p, ", m->thread_id, m->thread_idptr); 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; ti=amip->thread_id; tip=amip->thread_idptr; do { int buf_len; int info_len; ami_cnt++; memset(buf,'>',ami_cnt); BIO_snprintf(buf + ami_cnt, sizeof buf - ami_cnt, " thread=%lu/%p, file=%s, line=%d, info=\"", amip->thread_id, amip->thread_idptr, 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 && amip->thread_id == ti && amip->thread_idptr == tip); #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); } 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 their 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); }