COMP_METHOD *COMP_zlib(void) { COMP_METHOD *meth = &zlib_method_nozlib; #ifdef ZLIB_SHARED /* LIBZ may be externally defined, and we should respect that value */ # ifndef LIBZ # if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32) # define LIBZ "ZLIB1" # elif defined(OPENSSL_SYS_VMS) # define LIBZ "LIBZ" # else # define LIBZ "z" # endif # endif if (!zlib_loaded) { zlib_dso = DSO_load(NULL, LIBZ, NULL, 0); if (zlib_dso != NULL) { p_compress = (compress_ft) DSO_bind_func(zlib_dso, "compress"); p_inflateEnd = (inflateEnd_ft) DSO_bind_func(zlib_dso, "inflateEnd"); p_inflate = (inflate_ft) DSO_bind_func(zlib_dso, "inflate"); p_inflateInit_ = (inflateInit__ft) DSO_bind_func(zlib_dso, "inflateInit_"); p_deflateEnd = (deflateEnd_ft) DSO_bind_func(zlib_dso, "deflateEnd"); p_deflate = (deflate_ft) DSO_bind_func(zlib_dso, "deflate"); p_deflateInit_ = (deflateInit__ft) DSO_bind_func(zlib_dso, "deflateInit_"); p_zError = (zError__ft) DSO_bind_func(zlib_dso, "zError"); if (p_compress && p_inflateEnd && p_inflate && p_inflateInit_ && p_deflateEnd && p_deflate && p_deflateInit_ && p_zError) zlib_loaded++; if (!OPENSSL_init_crypto(OPENSSL_INIT_ZLIB, NULL)) { comp_zlib_cleanup_int(); return meth; } if (zlib_loaded) meth = &zlib_stateful_method; } } #endif #if defined(ZLIB) meth = &zlib_stateful_method; #endif return meth; }
void OPENSSL_cleanup(void) { OPENSSL_INIT_STOP *currhandler, *lasthandler; /* If we've not been inited then no need to deinit */ if (!base_inited) return; /* Might be explicitly called and also by atexit */ if (stopped) return; stopped = 1; /* * Thread stop may not get automatically called by the thread library for * the very last thread in some situations, so call it directly. */ ossl_init_thread_stop(ossl_init_get_thread_local(0)); currhandler = stop_handlers; while (currhandler != NULL) { currhandler->handler(); lasthandler = currhandler; currhandler = currhandler->next; OPENSSL_free(lasthandler); } stop_handlers = NULL; CRYPTO_THREAD_lock_free(init_lock); /* * We assume we are single-threaded for this function, i.e. no race * conditions for the various "*_inited" vars below. */ #ifndef OPENSSL_NO_COMP if (zlib_inited) { #ifdef OPENSSL_INIT_DEBUG fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " "comp_zlib_cleanup_int()\n"); #endif comp_zlib_cleanup_int(); } #endif if (async_inited) { # ifdef OPENSSL_INIT_DEBUG fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " "async_deinit()\n"); # endif async_deinit(); } if (load_crypto_strings_inited) { #ifdef OPENSSL_INIT_DEBUG fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " "err_free_strings_int()\n"); #endif err_free_strings_int(); } CRYPTO_THREAD_cleanup_local(&threadstopkey); #ifdef OPENSSL_INIT_DEBUG fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " "rand_cleanup_int()\n"); fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " "conf_modules_free_int()\n"); #ifndef OPENSSL_NO_ENGINE fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " "engine_cleanup_int()\n"); #endif fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " "crypto_cleanup_all_ex_data_int()\n"); fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " "bio_sock_cleanup_int()\n"); fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " "bio_cleanup()\n"); fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " "evp_cleanup_int()\n"); fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " "obj_cleanup_int()\n"); fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " "err_cleanup()\n"); #endif /* * Note that cleanup order is important: * - rand_cleanup_int could call an ENGINE's RAND cleanup function so * must be called before engine_cleanup_int() * - ENGINEs use CRYPTO_EX_DATA and therefore, must be cleaned up * before the ex data handlers are wiped in CRYPTO_cleanup_all_ex_data(). * - conf_modules_free_int() can end up in ENGINE code so must be called * before engine_cleanup_int() * - ENGINEs and additional EVP algorithms might use added OIDs names so * obj_cleanup_int() must be called last */ rand_cleanup_int(); conf_modules_free_int(); #ifndef OPENSSL_NO_ENGINE engine_cleanup_int(); #endif crypto_cleanup_all_ex_data_int(); bio_cleanup(); evp_cleanup_int(); obj_cleanup_int(); err_cleanup(); base_inited = 0; }