void aws_cal_platform_init()

in source/unix/openssl_platform_init.c [537:565]

• 23 lines of code
• 6 McCabe index (conditional complexity)

void aws_cal_platform_init(struct aws_allocator *allocator) {
    int version = s_resolve_libcrypto();
    AWS_FATAL_ASSERT(version != AWS_LIBCRYPTO_NONE && "libcrypto could not be resolved");
    AWS_FATAL_ASSERT(g_aws_openssl_evp_md_ctx_table);
    AWS_FATAL_ASSERT(g_aws_openssl_hmac_ctx_table);

    s_libcrypto_allocator = allocator;

#if !defined(OPENSSL_IS_AWSLC)
    /* Ensure that libcrypto 1.0.2 has working locking mechanisms. This code is macro'ed
     * by libcrypto to be a no-op on 1.1.1 */
    if (!CRYPTO_get_locking_callback()) {
        /* on 1.1.1 this is a no-op */
        CRYPTO_set_locking_callback(s_locking_fn);
        if (CRYPTO_get_locking_callback() == s_locking_fn) {
            s_libcrypto_locks = aws_mem_acquire(allocator, sizeof(struct aws_mutex) * CRYPTO_num_locks());
            AWS_FATAL_ASSERT(s_libcrypto_locks);
            size_t lock_count = (size_t)CRYPTO_num_locks();
            for (size_t i = 0; i < lock_count; ++i) {
                aws_mutex_init(&s_libcrypto_locks[i]);
            }
        }
    }

    if (!CRYPTO_get_id_callback()) {
        CRYPTO_set_id_callback(s_id_fn);
    }
#endif
}