A local copy of OpenSSL from GitHub
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/*
* Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "apps.h"
#include <string.h>
#include <openssl/err.h>
#include <openssl/provider.h>
#include <openssl/safestack.h>
DEFINE_STACK_OF(OSSL_PROVIDER)
/*
* See comments in opt_verify for explanation of this.
*/
enum prov_range { OPT_PROV_ENUM };
static STACK_OF(OSSL_PROVIDER) *app_providers = NULL;
static void provider_free(OSSL_PROVIDER *prov)
{
OSSL_PROVIDER_unload(prov);
}
int app_provider_load(OSSL_LIB_CTX *libctx, const char *provider_name)
{
OSSL_PROVIDER *prov;
prov = OSSL_PROVIDER_load(libctx, provider_name);
if (prov == NULL) {
opt_printf_stderr("%s: unable to load provider %s\n",
opt_getprog(), provider_name);
return 0;
}
if (app_providers == NULL)
app_providers = sk_OSSL_PROVIDER_new_null();
if (app_providers == NULL
|| !sk_OSSL_PROVIDER_push(app_providers, prov)) {
app_providers_cleanup();
return 0;
}
return 1;
}
void app_providers_cleanup(void)
{
sk_OSSL_PROVIDER_pop_free(app_providers, provider_free);
app_providers = NULL;
}
static int opt_provider_path(const char *path)
{
if (path != NULL && *path == '\0')
path = NULL;
return OSSL_PROVIDER_set_default_search_path(app_get0_libctx(), path);
}
int opt_provider(int opt)
{
switch ((enum prov_range)opt) {
case OPT_PROV__FIRST:
case OPT_PROV__LAST:
return 1;
case OPT_PROV_PROVIDER:
return app_provider_load(app_get0_libctx(), opt_arg());
case OPT_PROV_PROVIDER_PATH:
return opt_provider_path(opt_arg());
}
return 0;
}