curl/lib/warnless.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

107 lines
2.7 KiB
C

#ifndef HEADER_CURL_WARNLESS_H
#define HEADER_CURL_WARNLESS_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"
#ifdef USE_WINSOCK
#include <curl/curl.h> /* for curl_socket_t */
#endif
#define CURLX_FUNCTION_CAST(target_type, func) \
(target_type)(void (*) (void))(func)
unsigned short curlx_ultous(unsigned long ulnum);
unsigned char curlx_ultouc(unsigned long ulnum);
int curlx_uztosi(size_t uznum);
curl_off_t curlx_uztoso(size_t uznum);
unsigned long curlx_uztoul(size_t uznum);
unsigned int curlx_uztoui(size_t uznum);
int curlx_sltosi(long slnum);
unsigned int curlx_sltoui(long slnum);
unsigned short curlx_sltous(long slnum);
ssize_t curlx_uztosz(size_t uznum);
size_t curlx_sotouz(curl_off_t sonum);
int curlx_sztosi(ssize_t sznum);
unsigned short curlx_uitous(unsigned int uinum);
size_t curlx_sitouz(int sinum);
#ifdef USE_WINSOCK
int curlx_sktosi(curl_socket_t s);
curl_socket_t curlx_sitosk(int i);
#endif /* USE_WINSOCK */
#if defined(_WIN32)
ssize_t curlx_read(int fd, void *buf, size_t count);
ssize_t curlx_write(int fd, const void *buf, size_t count);
#endif /* _WIN32 */
#if defined(__INTEL_COMPILER) && defined(__unix__)
int curlx_FD_ISSET(int fd, fd_set *fdset);
void curlx_FD_SET(int fd, fd_set *fdset);
void curlx_FD_ZERO(fd_set *fdset);
unsigned short curlx_htons(unsigned short usnum);
unsigned short curlx_ntohs(unsigned short usnum);
#endif /* __INTEL_COMPILER && __unix__ */
#endif /* HEADER_CURL_WARNLESS_H */
#ifndef HEADER_CURL_WARNLESS_H_REDEFS
#define HEADER_CURL_WARNLESS_H_REDEFS
#if defined(_WIN32)
#undef read
#define read(fd, buf, count) curlx_read(fd, buf, count)
#undef write
#define write(fd, buf, count) curlx_write(fd, buf, count)
#endif
#endif /* HEADER_CURL_WARNLESS_H_REDEFS */