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;
}
