/*

 * Copyright 1995-2025 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 <stdio.h>

#include <openssl/bio.h>

#include "internal/e_os.h"

#include "internal/cryptlib.h"

#include "internal/common.h"

#include "internal/thread_once.h"

#include "buildinf.h"

unsigned long OpenSSL_version_num(void)

{

    return OPENSSL_VERSION_NUMBER;

}

unsigned int OPENSSL_version_major(void)

{

    return OPENSSL_VERSION_MAJOR;

}

unsigned int OPENSSL_version_minor(void)

{

    return OPENSSL_VERSION_MINOR;

}

unsigned int OPENSSL_version_patch(void)

{

    return OPENSSL_VERSION_PATCH;

}

const char *OPENSSL_version_pre_release(void)

{

    return OPENSSL_VERSION_PRE_RELEASE;

}

const char *OPENSSL_version_build_metadata(void)

{

    return OPENSSL_VERSION_BUILD_METADATA;

}

extern char ossl_cpu_info_str[];

#if defined(_WIN32) && defined(OSSL_WINCTX)

/* size: MAX_PATH + sizeof("OPENSSLDIR: \"\"") */

static char openssldir[MAX_PATH + 15];

/* size: MAX_PATH + sizeof("ENGINESDIR: \"\"") */

static char enginesdir[MAX_PATH + 15];

/* size: MAX_PATH + sizeof("MODULESDIR: \"\"") */

static char modulesdir[MAX_PATH + 15];

static CRYPTO_ONCE version_strings_once = CRYPTO_ONCE_STATIC_INIT;

DEFINE_RUN_ONCE_STATIC(version_strings_setup)

{

    BIO_snprintf(openssldir, sizeof(openssldir), "OPENSSLDIR: \"%s\"",

                 ossl_get_openssldir());

    BIO_snprintf(enginesdir, sizeof(enginesdir), "ENGINESDIR: \"%s\"",

                 ossl_get_enginesdir());

    BIO_snprintf(modulesdir, sizeof(modulesdir), "MODULESDIR: \"%s\"",

                 ossl_get_modulesdir());

    return 1;

}

# define TOSTR(x) #x

# define OSSL_WINCTX_STRING "OSSL_WINCTX: \"" TOSTR(OSSL_WINCTX) "\""

#endif

const char *OpenSSL_version(int t)

{

#if defined(_WIN32) && defined(OSSL_WINCTX)

    /* Cannot really fail but we would return empty strings anyway */

    (void)RUN_ONCE(&version_strings_once, version_strings_setup);

#endif

    switch (t) {

    case OPENSSL_VERSION:

        return OPENSSL_VERSION_TEXT;

    case OPENSSL_VERSION_STRING:

        return OPENSSL_VERSION_STR;

    case OPENSSL_FULL_VERSION_STRING:

        return OPENSSL_FULL_VERSION_STR;

    case OPENSSL_BUILT_ON:

        return DATE;

    case OPENSSL_CFLAGS:

        return compiler_flags;

    case OPENSSL_PLATFORM:

        return PLATFORM;

#if defined(_WIN32) && defined(OSSL_WINCTX)

    case OPENSSL_DIR:

        return openssldir;

    case OPENSSL_ENGINES_DIR:

        return enginesdir;

    case OPENSSL_MODULES_DIR:

        return modulesdir;

#else

    case OPENSSL_DIR:

# ifdef OPENSSLDIR

        return "OPENSSLDIR: \"" OPENSSLDIR "\"";

# else

        return "OPENSSLDIR: N/A";

# endif

    case OPENSSL_ENGINES_DIR:

# ifdef ENGINESDIR

        return "ENGINESDIR: \"" ENGINESDIR "\"";

# else

        return "ENGINESDIR: N/A";

# endif

    case OPENSSL_MODULES_DIR:

# ifdef MODULESDIR

        return "MODULESDIR: \"" MODULESDIR "\"";

# else

        return "MODULESDIR: N/A";

# endif

#endif

    case OPENSSL_CPU_INFO:

        if (OPENSSL_info(OPENSSL_INFO_CPU_SETTINGS) != NULL)

            return ossl_cpu_info_str;

        else

            return "CPUINFO: N/A";

    case OPENSSL_WINCTX:

#if defined(_WIN32) && defined(OSSL_WINCTX)

        return OSSL_WINCTX_STRING;

#else

        return "OSSL_WINCTX: Undefined";

#endif

    }

    return "not available";

}