Microsoft's list of banned C functions

	/***
	* banned.h - list of Microsoft Security Development Lifecycle (SDL) banned APIs
	* Copyright (c) Microsoft Corporation. All rights reserved.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
	* and associated documentation files (the "Software"), to deal in the Software without
	* restriction, including without limitation the rights to use, copy, modify, merge, publish,
	* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in all copies or
	* substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
	* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
	* PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
	* FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	* SOFTWARE.
	*
	* Purpose:
	* This include file contains a list of banned APIs which should not be used in new code and
	* removed from legacy code over time.
	*
	* History
	* 01-Jan-2006 - mikehow - Initial Version
	* 22-Apr-2008 - mikehow - Updated to SDL 4.1, commented out recommendations and added memcpy
	* 26-Jan-2009 - mikehow - Updated to SDL 5.0, made the list sane, added SDL compliance levels
	* 10-Feb-2009 - mikehow - Updated based on feedback from MS Office
	* 12-May-2009 - jpardue - Added wmemcpy
	* 08-Jul-2009 - mikehow - Fixed header #ifndef/#endif logic, made the SDL recommended compliance level name more obvious
	* 05-Nov-2009 - mikehow - Added vsnprintf (ANSI version of _vsnprintf)
	* 01-Jan-2010 - mikehow - Added better strsafe integration, now the following works:
	* #include "strsafe.h"
	* #include "banned.h"
	* 04-Jun-2010 - mikehow - Small "#if" bug fix
	* 16-Jun-2011 - mikehow - Added the two _CRT_SECURE_xxxxx macros
	* 07-Jul-2011 - mikehow - Bugfix when using recommended banned functions and StrSafe. Locally surpressed C4005 warnings
	* 15-Jun-2012 - bryans - Moved lstrlen to required banned; removed strlen, wcslen, _mbslen, _mbstrlen, StrLen from recommended banned
	* 01-Feb-2013 - martinwo - Added license to header
	* 09-Jan-2014 - mikehow - Combined the current external and internal versions
	* 10-Feb-2015 - mikehow - Added gcc/clang support (thanks to Ramsey Dow)
	* Note that many of the APIs are Windows specific, however.
	* 18-May-2018 - mikehow - Updated URL for info about the auto-migrate feature in VC++
	*
	***/
	#ifndef _INC_BANNED
	# define _INC_BANNED
	# if defined(_MSC_VER)
	# pragma once
	// Flip the 'auto-migrate' functionality in VC++
	// Some functions, such as strcpy() are changed to safer functions by the compiler
	// More info: https://ift.tt/3c7rGhq
	#ifndef _SDL_DONT_AUTO_FIX
	# pragma warning(push)
	# pragma warning(disable: 4005) // Turns off macro redefinition warnings
	// strcpy etc
	# define _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES (1)
	// memcpy etc
	# define _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES_MEMORY (1)
	# pragma warning(pop)
	#endif
	// SDL 6.0 Requirements
	# if defined(_STRSAFE_H_INCLUDED_) && !defined(STRSAFE_NO_DEPRECATE)
	// Only deprecate what's not already deprecated by StrSafe
	# pragma deprecated (_mbscpy, _mbccpy)
	# pragma deprecated (strcatA, strcatW, _mbscat, StrCatBuff, StrCatBuffA, StrCatBuffW, StrCatChainW, _tccat, _mbccat)
	# pragma deprecated (strncpy, wcsncpy, _tcsncpy, _mbsncpy, _mbsnbcpy, StrCpyN, StrCpyNA, StrCpyNW, StrNCpy, strcpynA, StrNCpyA, StrNCpyW, lstrcpyn, lstrcpynA, lstrcpynW)
	# pragma deprecated (strncat, wcsncat, _tcsncat, _mbsncat, _mbsnbcat, lstrncat, lstrcatnA, lstrcatnW, lstrcatn)
	# pragma deprecated (IsBadWritePtr, IsBadHugeWritePtr, IsBadReadPtr, IsBadHugeReadPtr, IsBadCodePtr, IsBadStringPtr)
	# pragma deprecated (memcpy, RtlCopyMemory, CopyMemory, wmemcpy)
	# pragma deprecated (lstrlen)
	# else
	// StrSafe not loaded, so deprecate everything!
	# pragma deprecated (strcpy, strcpyA, strcpyW, wcscpy, _tcscpy, _mbscpy, StrCpy, StrCpyA, StrCpyW, lstrcpy, lstrcpyA, lstrcpyW, _tccpy, _mbccpy, _ftcscpy)
	# pragma deprecated (strcat, strcatA, strcatW, wcscat, _tcscat, _mbscat, StrCat, StrCatA, StrCatW, lstrcat, lstrcatA, lstrcatW, StrCatBuff, StrCatBuffA, StrCatBuffW, StrCatChainW, _tccat, _mbccat, _ftcscat)
	# pragma deprecated (sprintfW, sprintfA, wsprintf, wsprintfW, wsprintfA, sprintf, swprintf, _stprintf)
	# pragma deprecated (wvsprintf, wvsprintfA, wvsprintfW, vsprintf, _vstprintf, vswprintf)
	# pragma deprecated (strncpy, wcsncpy, _tcsncpy, _mbsncpy, _mbsnbcpy, StrCpyN, StrCpyNA, StrCpyNW, StrNCpy, strcpynA, StrNCpyA, StrNCpyW, lstrcpyn, lstrcpynA, lstrcpynW)
	# pragma deprecated (strncat, wcsncat, _tcsncat, _mbsncat, _mbsnbcat, StrCatN, StrCatNA, StrCatNW, StrNCat, StrNCatA, StrNCatW, lstrncat, lstrcatnA, lstrcatnW, lstrcatn)
	# pragma deprecated (gets, _getts, _gettws)
	# pragma deprecated (IsBadWritePtr, IsBadHugeWritePtr, IsBadReadPtr, IsBadHugeReadPtr, IsBadCodePtr, IsBadStringPtr)
	# pragma deprecated (memcpy, RtlCopyMemory, CopyMemory, wmemcpy)
	# pragma deprecated (lstrlen)
	# endif //defined(_STRSAFE_H_INCLUDED_) && !defined(STRSAFE_NO_DEPRECATE)
	// SDL 6.0 Recommendations
	# if defined(_SDL_BANNED_RECOMMENDED)
	# if defined(_STRSAFE_H_INCLUDED_) && !defined(STRSAFE_NO_DEPRECATE)
	// Only deprecate what's not already deprecated by StrSafe
	# pragma deprecated (wnsprintf, wnsprintfA, wnsprintfW)
	# pragma deprecated (vsnprintf, wvnsprintf, wvnsprintfA, wvnsprintfW)
	# pragma deprecated (strtok, _tcstok, wcstok, _mbstok)
	# pragma deprecated (makepath, _tmakepath, _makepath, _wmakepath)
	# pragma deprecated (_splitpath, _tsplitpath, _wsplitpath)
	# pragma deprecated (scanf, wscanf, _tscanf, sscanf, swscanf, _stscanf, snscanf, snwscanf, _sntscanf)
	# pragma deprecated (_itoa, _itow, _i64toa, _i64tow, _ui64toa, _ui64tot, _ui64tow, _ultoa, _ultot, _ultow)
	# pragma deprecated (CharToOem, CharToOemA, CharToOemW, OemToChar, OemToCharA, OemToCharW, CharToOemBuffA, CharToOemBuffW)
	# pragma deprecated (alloca, _alloca)
	# pragma deprecated (ChangeWindowMessageFilter)
	# else
	// StrSafe not loaded, so deprecate everything!
	# pragma deprecated (wnsprintf, wnsprintfA, wnsprintfW, _snwprintf, _snprintf, _sntprintf)
	# pragma deprecated (_vsnprintf, vsnprintf, _vsnwprintf, _vsntprintf, wvnsprintf, wvnsprintfA, wvnsprintfW)
	# pragma deprecated (strtok, _tcstok, wcstok, _mbstok)
	# pragma deprecated (makepath, _tmakepath, _makepath, _wmakepath)
	# pragma deprecated (_splitpath, _tsplitpath, _wsplitpath)
	# pragma deprecated (scanf, wscanf, _tscanf, sscanf, swscanf, _stscanf, snscanf, snwscanf, _sntscanf)
	# pragma deprecated (_itoa, _itow, _i64toa, _i64tow, _ui64toa, _ui64tot, _ui64tow, _ultoa, _ultot, _ultow)
	# pragma deprecated (CharToOem, CharToOemA, CharToOemW, OemToChar, OemToCharA, OemToCharW, CharToOemBuffA, CharToOemBuffW)
	# pragma deprecated (alloca, _alloca)
	# pragma deprecated (ChangeWindowMessageFilter)
	# endif // StrSafe
	# endif // SDL recommended
	# else
	# if defined __clang__
	# pragma clang system_header
	# endif // __clang__
	// SDL 6.0 and later Requirements
	# pragma GCC poison strcpy strcpyA strcpyW wcscpy _tcscpy _mbscpy StrCpy StrCpyA StrCpyW lstrcpy lstrcpyA lstrcpyW _tccpy _mbccpy _ftcscpy
	# pragma GCC poison strcat strcatA strcatW wcscat _tcscat _mbscat StrCat StrCatA StrCatW lstrcat lstrcatA lstrcatW StrCatBuff StrCatBuffA StrCatBuffW StrCatChainW _tccat _mbccat _ftcscat
	# pragma GCC poison sprintfW sprintfA wsprintf wsprintfW wsprintfA sprintf swprintf _stprintf
	# pragma GCC poison wvsprintf wvsprintfA wvsprintfW vsprintf _vstprintf vswprintf
	# pragma GCC poison strncpy wcsncpy _tcsncpy _mbsncpy _mbsnbcpy StrCpyN StrCpyNA StrCpyNW StrNCpy strcpynA StrNCpyA StrNCpyW lstrcpyn lstrcpynA lstrcpynW
	# pragma GCC poison strncat wcsncat _tcsncat _mbsncat _mbsnbcat StrCatN StrCatNA StrCatNW StrNCat StrNCatA StrNCatW lstrncat lstrcatnA lstrcatnW lstrcatn
	# pragma GCC poison gets _getts _gettws
	# pragma GCC poison IsBadWritePtr IsBadHugeWritePtr IsBadReadPtr IsBadHugeReadPtr IsBadCodePtr IsBadStringPtr
	# pragma GCC poison memcpy RtlCopyMemory CopyMemory wmemcpy
	# pragma GCC poison lstrlen
	#if defined(_SDL_BANNED_RECOMMENDED)
	// SDL 6.0 and later Recommendations
	# pragma GCC poison wnsprintf wnsprintfA wnsprintfW _snwprintf _snprintf _sntprintf
	# pragma GCC poison _vsnprintf vsnprintf _vsnwprintf _vsntprintf wvnsprintf wvnsprintfA wvnsprintfW
	# pragma GCC poison strtok _tcstok wcstok _mbstok
	# pragma GCC poison makepath _tmakepath _makepath _wmakepath
	# pragma GCC poison _splitpath _tsplitpath _wsplitpath
	# pragma GCC poison scanf wscanf _tscanf sscanf swscanf _stscanf snscanf snwscanf _sntscanf
	# pragma GCC poison _itoa _itow _i64toa _i64tow _ui64toa _ui64tot _ui64tow _ultoa _ultot _ultow
	# pragma GCC poison CharToOem CharToOemA CharToOemW OemToChar OemToCharA OemToCharW CharToOemBuffA CharToOemBuffW
	# pragma GCC poison alloca _alloca
	# pragma GCC poison ChangeWindowMessageFilter
	#endif
	# endif // _MSC_VER_
	#endif // _INC_BANNED

from Hacker News https://ift.tt/2Os50Ad