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/*
* Copyright 2022 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
*/
#ifndef OSSL_E_WINSOCK_H
# define OSSL_E_WINSOCK_H
# pragma once
# ifdef WINDOWS
# if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)
/*
* Defining _WIN32_WINNT here in e_winsock.h implies certain "discipline."
* Most notably we ought to check for availability of each specific
* routine that was introduced after denoted _WIN32_WINNT with
* GetProcAddress(). Normally newer functions are masked with higher
* _WIN32_WINNT in SDK headers. So that if you wish to use them in
* some module, you'd need to override _WIN32_WINNT definition in
* the target module in order to "reach for" prototypes, but replace
* calls to new functions with indirect calls. Alternatively it
* might be possible to achieve the goal by /DELAYLOAD-ing .DLLs
* and check for current OS version instead.
*/
# define _WIN32_WINNT 0x0501
# endif
# if defined(_WIN32_WINNT) || defined(_WIN32_WCE)
/*
* Just like defining _WIN32_WINNT including winsock2.h implies
* certain "discipline" for maintaining [broad] binary compatibility.
* As long as structures are invariant among Winsock versions,
* it's sufficient to check for specific Winsock2 API availability
* at run-time [DSO_global_lookup is recommended]...
*/
# include <winsock2.h>
# include <ws2tcpip.h>
/*
* Clang-based C++Builder 10.3.3 toolchains cannot find C inline
* definitions at link-time. This header defines WspiapiLoad() as an
* __inline function. https://quality.embarcadero.com/browse/RSP-33806
*/
# if !defined(__BORLANDC__) || !defined(__clang__)
# include <wspiapi.h>
# endif
/* yes, they have to be #included prior to <windows.h> */
# endif
# include <windows.h>
# endif
#endif /* !(OSSL_E_WINSOCK_H) */
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