InspIRCd  3.0
inspircd_win32wrapper.h
1 /*
2  * InspIRCd -- Internet Relay Chat Daemon
3  *
4  * Copyright (C) 2020 Matt Schatz <[email protected]>
5  * Copyright (C) 2013-2015 Attila Molnar <[email protected]>
6  * Copyright (C) 2013, 2015, 2018-2019, 2021 Sadie Powell <[email protected]>
7  * Copyright (C) 2012-2013 ChrisTX <[email protected]>
8  * Copyright (C) 2012 Robby <[email protected].be>
9  * Copyright (C) 2011, 2014, 2019 Adam <[email protected]>
10  * Copyright (C) 2009 Uli Schlachter <[email protected]>
11  * Copyright (C) 2007-2009 Robin Burchell <[email protected]>
12  * Copyright (C) 2007-2008 Craig Edwards <[email protected]>
13  * Copyright (C) 2007, 2009 Dennis Friis <[email protected]>
14  * Copyright (C) 2007 burlex <[email protected]>
15  *
16  * This file is part of InspIRCd. InspIRCd is free software: you can
17  * redistribute it and/or modify it under the terms of the GNU General Public
18  * License as published by the Free Software Foundation, version 2.
19  *
20  * This program is distributed in the hope that it will be useful, but WITHOUT
21  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
22  * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
23  * details.
24  *
25  * You should have received a copy of the GNU General Public License
26  * along with this program. If not, see <http://www.gnu.org/licenses/>.
27  */
28 
29 
30 #pragma once
31 
32 /* Windows Port
33  Wrapper Functions/Definitions
34  By Burlex */
35 /*
36  * Starting with PSAPI version 2 for Windows 7 and Windows Server 2008 R2, this function is defined as K32GetProcessMemoryInfo in Psapi.h and exported
37  * in Kernel32.lib and Kernel32.dll. However, you should always call this function as GetProcessMemoryInfo. To ensure correct resolution of symbols
38  * for programs that will run on earlier versions of Windows, add Psapi.lib to the TARGETLIBS macro and compile the program with PSAPI_VERSION=1.
39  *
40  * We do this before anything to make sure it's done.
41  */
42 #define PSAPI_VERSION 1
43 
44 #include "win32service.h"
45 
46 /* This defaults to 64, way too small for an ircd! */
47 
48 #define FD_SETSIZE 24000
49 
50 /* Make builds smaller, leaner and faster */
51 #define VC_EXTRALEAN
52 #define WIN32_LEAN_AND_MEAN
53 
54 /* Macros for exporting symbols - dependent on what is being compiled */
55 
56 #ifdef DLL_BUILD
57 #define CoreExport __declspec(dllimport)
58 #define DllExport __declspec(dllexport)
59 #else
60 #define CoreExport __declspec(dllexport)
61 #define DllExport __declspec(dllimport)
62 #endif
63 
64 /* Redirect main() through a different method in win32service.cpp, to intercept service startup */
65 #define ENTRYPOINT CoreExport int smain(int argc, char** argv)
66 
67 /* Disable the deprecation warnings.. it spams :P */
68 #define _CRT_SECURE_NO_DEPRECATE
69 #define _WINSOCK_DEPRECATED_NO_WARNINGS
70 
71 // Windows doesn't support getopt_long so we use ya_getopt instead.
72 #include "ya_getopt.h"
73 
74 /* Normal windows (platform-specific) includes */
75 #include <winsock2.h>
76 #pragma comment(lib, "Ws2_32.lib")
77 #include <windows.h>
78 #include <ws2tcpip.h>
79 #include <sys/types.h>
80 #include <sys/stat.h>
81 #include <direct.h>
82 #include <process.h>
83 #include <io.h>
84 
85 #define F_OK 0 /* test for existence of file */
86 #define X_OK (1<<0) /* test for execute or search permission */
87 #define W_OK (1<<1) /* test for write permission */
88 #define R_OK (1<<2) /* test for read permission */
89 
90 // Windows defines these already.
91 #undef ERROR
92 #undef min
93 #undef max
94 
95 /* strcasecmp is not defined on windows by default */
96 #define strcasecmp _stricmp
97 #define strncasecmp _strnicmp
98 
99 typedef SSIZE_T ssize_t;
100 
101 /* _popen, _pclose */
102 #define popen _popen
103 #define pclose _pclose
104 #define getpid _getpid
105 #define dup _dup
106 #define fdopen _fdopen
107 
108 // warning: 'identifier' : class 'type' needs to have dll-interface to be used by clients of class 'type2'
109 // Normally, this is a huge problem, but due to our new/delete remap, we can ignore it.
110 #pragma warning(disable:4251)
111 
112 // warning: DLL-interface classkey 'identifier' used as base for DLL-interface classkey 'identifier'
113 #pragma warning(disable:4275)
114 
115 // warning: unreferenced formal parameter
116 // Unimportant for now, but for the next version, we should take a look at these again.
117 #pragma warning(disable:4100)
118 
119 // warning: 'class' : assignment operator could not be generated
120 #pragma warning(disable:4512)
121 
122 // warning C4127: conditional expression is constant
123 // This will be triggered like crazy because FOREACH_MOD and similar macros are wrapped in do { ... } while(0) constructs
124 #pragma warning(disable:4127)
125 
126 // warning C4996: The POSIX name for this item is deprecated.
127 #pragma warning(disable:4996)
128 
129 // warning C4244: conversion from 'x' to 'y', possible loss of data
130 #pragma warning(disable:4244)
131 
132 // warning C4267: 'var' : conversion from 'size_t' to 'type', possible loss of data
133 #pragma warning(disable:4267)
134 
135 // warning C4706: assignment within conditional expression
136 #pragma warning(disable:4706)
137 
138 // warning C4800: 'type' : forcing value to bool 'true' or 'false' (performance warning)
139 #pragma warning(disable:4800)
140 
141 /* Shared memory allocation functions */
142 void * ::operator new(size_t iSize);
143 void ::operator delete(void * ptr);
144 
145 #include <exception>
146 
147 class CWin32Exception : public std::exception
148 {
149 public:
150  CWin32Exception();
151  CWin32Exception(const CWin32Exception& other);
152  virtual const char* what() const throw();
153  DWORD GetErrorCode();
154 
155 private:
156  char szErrorString[500];
157  DWORD dwErrorCode;
158 };
159 
160 // Same value as EXIT_STATUS_FORK (EXIT_STATUS_FORK is unused on Windows)
161 #define EXIT_STATUS_SERVICE 4
162 
163 // POSIX iovec
164 struct iovec
165 {
166  void* iov_base; // Starting address
167  size_t iov_len; // Number of bytes to transfer
168 };
169 
170 // Windows WSABUF with POSIX field names
172 {
173  // POSIX iovec has iov_base then iov_len, WSABUF in Windows has the fields in reverse order
174  u_long iov_len; // Number of bytes to transfer
175  char FAR* iov_base; // Starting address
176 };
177 
178 inline ssize_t writev(int fd, const WindowsIOVec* iov, int count)
179 {
180  DWORD sent;
181  int ret = WSASend(fd, reinterpret_cast<LPWSABUF>(const_cast<WindowsIOVec*>(iov)), count, &sent, 0, NULL, NULL);
182  if (ret == 0)
183  return sent;
184  return -1;
185 }
186 
187 // This wrapper is just so we don't need to do #ifdef _WIN32 everywhere in the socket code. It is
188 // not actually used and does not need to be the same size as sockaddr_un on UNIX systems.
190 {
191  ADDRESS_FAMILY sun_family;
192  char sun_path[6];
193 };
sockaddr_un
Definition: inspircd_win32wrapper.h:189
CWin32Exception
Definition: inspircd_win32wrapper.h:147
iovec
Definition: inspircd_win32wrapper.h:164
WindowsIOVec
Definition: inspircd_win32wrapper.h:171