/*

 * Copyright 2020-2025 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 <stdlib.h>

#include <string.h>

#include "prov/provider_ctx.h"

#include "prov/bio.h"

PROV_CTX *ossl_prov_ctx_new(void)

{

    return OPENSSL_zalloc(sizeof(PROV_CTX));

}

void ossl_prov_ctx_free(PROV_CTX *ctx)

{

    OPENSSL_free(ctx);

}

void ossl_prov_ctx_set0_libctx(PROV_CTX *ctx, OSSL_LIB_CTX *libctx)

{

    if (ctx != NULL)

        ctx->libctx = libctx;

}

void ossl_prov_ctx_set0_handle(PROV_CTX *ctx, const OSSL_CORE_HANDLE *handle)

{

    if (ctx != NULL)

        ctx->handle = handle;

}

void ossl_prov_ctx_set0_core_bio_method(PROV_CTX *ctx, BIO_METHOD *corebiometh)

{

    if (ctx != NULL)

        ctx->corebiometh = corebiometh;

}

void

ossl_prov_ctx_set0_core_get_params(PROV_CTX *ctx,

                                   OSSL_FUNC_core_get_params_fn *c_get_params)

{

    if (ctx != NULL)

        ctx->core_get_params = c_get_params;

}

OSSL_LIB_CTX *ossl_prov_ctx_get0_libctx(PROV_CTX *ctx)

{

    if (ctx == NULL)

        return NULL;

    return ctx->libctx;

}

const OSSL_CORE_HANDLE *ossl_prov_ctx_get0_handle(PROV_CTX *ctx)

{

    if (ctx == NULL)

        return NULL;

    return ctx->handle;

}

BIO_METHOD *ossl_prov_ctx_get0_core_bio_method(PROV_CTX *ctx)

{

    if (ctx == NULL)

        return NULL;

    return ctx->corebiometh;

}

OSSL_FUNC_core_get_params_fn *ossl_prov_ctx_get0_core_get_params(PROV_CTX *ctx)

{

    if (ctx == NULL)

        return NULL;

    return ctx->core_get_params;

}

const char *

ossl_prov_ctx_get_param(PROV_CTX *ctx, const char *name, const char *defval)

{

    char *val = NULL;

    OSSL_PARAM param[2] = { OSSL_PARAM_END, OSSL_PARAM_END };

    if (ctx == NULL

        || ctx->handle == NULL

        || ctx->core_get_params == NULL)

        return defval;

    param[0].key = (char *) name;

    param[0].data_type = OSSL_PARAM_UTF8_PTR;

    param[0].data = (void *) &val;

    param[0].data_size = sizeof(val);

    param[0].return_size = OSSL_PARAM_UNMODIFIED;

    /* Errors are ignored, returning the default value */

    if (ctx->core_get_params(ctx->handle, param)

        && OSSL_PARAM_modified(param)

        && val != NULL)

        return val;

    return defval;

}

int ossl_prov_ctx_get_bool_param(PROV_CTX *ctx, const char *name, int defval)

{

    const char *val = ossl_prov_ctx_get_param(ctx, name, NULL);

    if (val != NULL) {

        if ((strcmp(val, "1") == 0)

            || (OPENSSL_strcasecmp(val, "yes") == 0)

            || (OPENSSL_strcasecmp(val, "true") == 0)

            || (OPENSSL_strcasecmp(val, "on") == 0))

            return 1;

        else if ((strcmp(val, "0") == 0)

                 || (OPENSSL_strcasecmp(val, "no") == 0)

                 || (OPENSSL_strcasecmp(val, "false") == 0)

                 || (OPENSSL_strcasecmp(val, "off") == 0))

            return 0;

    }

    return defval;

}