curl/lib/functypes.h
Viktor Szakats e9a7d4a1c8
windows: use built-in _WIN32 macro to detect Windows
Windows compilers define `_WIN32` automatically. Windows SDK headers
or build env defines `WIN32`, or we have to take care of it. The
agreement seems to be that `_WIN32` is the preferred practice here.
Make the source code rely on that to detect we're building for Windows.

Public `curl.h` was using `WIN32`, `__WIN32__` and `CURL_WIN32` for
Windows detection, next to the official `_WIN32`. After this patch it
only uses `_WIN32` for this. Also, make it stop defining `CURL_WIN32`.

There is a slight chance these break compatibility with Windows
compilers that fail to define `_WIN32`. I'm not aware of any obsolete
or modern compiler affected, but in case there is one, one possible
solution is to define this macro manually.

grepping for `WIN32` remains useful to discover Windows-specific code.

Also:

- extend `checksrc` to ensure we're not using `WIN32` anymore.

- apply minor formatting here and there.

- delete unnecessary checks for `!MSDOS` when `_WIN32` is present.

Co-authored-by: Jay Satiro
Reviewed-by: Daniel Stenberg

Closes #12376
2023-11-22 15:42:25 +00:00

116 lines
2.8 KiB
C

#ifndef HEADER_CURL_FUNCTYPES_H
#define HEADER_CURL_FUNCTYPES_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "curl_setup.h"
/* defaults:
ssize_t recv(int, void *, size_t, int);
ssize_t send(int, const void *, size_t, int);
If other argument or return types are needed:
1. For systems that run configure or cmake, the alternatives are provided
here.
2. For systems with config-*.h files, define them there.
*/
#ifdef _WIN32
/* int recv(SOCKET, char *, int, int) */
#define RECV_TYPE_ARG1 SOCKET
#define RECV_TYPE_ARG2 char *
#define RECV_TYPE_ARG3 int
#define RECV_TYPE_RETV int
/* int send(SOCKET, const char *, int, int); */
#define SEND_TYPE_ARG1 SOCKET
#define SEND_TYPE_ARG2 char *
#define SEND_TYPE_ARG3 int
#define SEND_TYPE_RETV int
#elif defined(__AMIGA__) /* Any AmigaOS flavour */
/* long recv(long, char *, long, long); */
#define RECV_TYPE_ARG1 long
#define RECV_TYPE_ARG2 char *
#define RECV_TYPE_ARG3 long
#define RECV_TYPE_ARG4 long
#define RECV_TYPE_RETV long
/* int send(int, const char *, int, int); */
#define SEND_TYPE_ARG1 int
#define SEND_TYPE_ARG2 char *
#define SEND_TYPE_ARG3 int
#define SEND_TYPE_RETV int
#endif
#ifndef RECV_TYPE_ARG1
#define RECV_TYPE_ARG1 int
#endif
#ifndef RECV_TYPE_ARG2
#define RECV_TYPE_ARG2 void *
#endif
#ifndef RECV_TYPE_ARG3
#define RECV_TYPE_ARG3 size_t
#endif
#ifndef RECV_TYPE_ARG4
#define RECV_TYPE_ARG4 int
#endif
#ifndef RECV_TYPE_RETV
#define RECV_TYPE_RETV ssize_t
#endif
#ifndef SEND_QUAL_ARG2
#define SEND_QUAL_ARG2 const
#endif
#ifndef SEND_TYPE_ARG1
#define SEND_TYPE_ARG1 int
#endif
#ifndef SEND_TYPE_ARG2
#define SEND_TYPE_ARG2 void *
#endif
#ifndef SEND_TYPE_ARG3
#define SEND_TYPE_ARG3 size_t
#endif
#ifndef SEND_TYPE_ARG4
#define SEND_TYPE_ARG4 int
#endif
#ifndef SEND_TYPE_RETV
#define SEND_TYPE_RETV ssize_t
#endif
#endif /* HEADER_CURL_FUNCTYPES_H */