WinSock2.h
/*
SPDX-License-Identifier: MIT
Copyright © 1991-2022 Amebis
Copyright © 2016 GÉANT
*/
#pragma once
#include "Common.h"
#include <WinSock2.h>
#include <ws2def.h>
#include <WS2tcpip.h>
namespace winstd
{
class ws2_runtime_error : public num_runtime_error<int>
{
public:
ws2_runtime_error(_In_ error_type num, _In_ const std::string& msg) : num_runtime_error<int>(num, msg)
{
}
ws2_runtime_error(_In_ error_type num, _In_opt_z_ const char *msg = nullptr) : num_runtime_error<int>(num, msg)
{
}
ws2_runtime_error(_In_ const std::string& msg) : num_runtime_error<int>(WSAGetLastError(), msg)
{
}
ws2_runtime_error(_In_opt_z_ const char *msg = nullptr) : num_runtime_error<int>(WSAGetLastError(), msg)
{
}
tstring msg(_In_opt_ DWORD dwLanguageId = 0) const
{
tstring str;
if (FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 0, m_num, dwLanguageId, str, NULL)) {
// Stock Windows error messages contain CRLF. Well... Trim all the trailing white space.
str.erase(str.find_last_not_of(_T(" \t\n\r\f\v")) + 1);
} else
sprintf(str, m_num >= 0x10000 ? _T("Error 0x%X") : _T("Error %u"), m_num);
return str;
}
};
#if (NTDDI_VERSION >= NTDDI_WINXPSP2) || (_WIN32_WINNT >= 0x0502)
class addrinfo : public handle<PADDRINFOT, NULL>
{
WINSTD_HANDLE_IMPL(addrinfo, NULL)
public:
bool get(
_In_opt_ PCTSTR pNodeName,
_In_opt_ PCTSTR pServiceName,
_In_opt_ const ADDRINFOT *pHints)
{
handle_type h;
if (GetAddrInfo(pNodeName, pServiceName, pHints, &h) == 0) {
attach(h);
return true;
} else
return false;
}
virtual ~addrinfo()
{
if (m_h != invalid)
free_internal();
}
protected:
void free_internal() noexcept override
{
FreeAddrInfo(m_h);
}
};
#endif
}
winstd::addrinfo
SID wrapper class.
Definition: WinSock2.h:94
winstd::addrinfo::free_internal
void free_internal() noexcept override
Frees address information.
Definition: WinSock2.h:133
winstd::addrinfo::~addrinfo
virtual ~addrinfo()
Frees address information.
Definition: WinSock2.h:121
winstd::addrinfo::get
bool get(PCTSTR pNodeName, PCTSTR pServiceName, const ADDRINFOT *pHints)
Provides protocol-independent translation from a host name to an address.
Definition: WinSock2.h:103
winstd::handle
Base abstract template class to support generic object handle keeping.
Definition: Common.h:604
winstd::handle< PADDRINFOT, NULL >::handle_type
PADDRINFOT handle_type
Datatype of the object handle this template class handles.
Definition: Common.h:609
winstd::handle< PADDRINFOT, NULL >::m_h
handle_type m_h
Object handle.
Definition: Common.h:855
winstd::handle< PADDRINFOT, NULL >::attach
void attach(handle_type h) noexcept
Sets a new object handle for the class.
Definition: Common.h:818
winstd::num_runtime_error
Numerical runtime error.
Definition: Common.h:1003
winstd::num_runtime_error< int >::error_type
int error_type
Error number type.
Definition: Common.h:1005
winstd::num_runtime_error< int >::m_num
error_type m_num
Numeric error code.
Definition: Common.h:1041
winstd::ws2_runtime_error
WinSock2 runtime error.
Definition: WinSock2.h:26
winstd::ws2_runtime_error::ws2_runtime_error
ws2_runtime_error(error_type num, const char *msg=nullptr)
Constructs an exception.
Definition: WinSock2.h:44
winstd::ws2_runtime_error::ws2_runtime_error
ws2_runtime_error(const char *msg=nullptr)
Constructs an exception using WSAGetLastError()
Definition: WinSock2.h:62
winstd::ws2_runtime_error::ws2_runtime_error
ws2_runtime_error(error_type num, const std::string &msg)
Constructs an exception.
Definition: WinSock2.h:34
winstd::ws2_runtime_error::ws2_runtime_error
ws2_runtime_error(const std::string &msg)
Constructs an exception using WSAGetLastError()
Definition: WinSock2.h:53
winstd::ws2_runtime_error::msg
tstring msg(DWORD dwLanguageId=0) const
Returns a user-readable Windows error message.
Definition: WinSock2.h:71
winstd::tstring
std::string tstring
Multi-byte / Wide-character string (according to _UNICODE)
Definition: Common.h:335
WINSTD_HANDLE_IMPL
#define WINSTD_HANDLE_IMPL(C, INVAL)
Implements default constructors and operators to prevent their auto-generation by compiler.
Definition: Common.h:162
winstd::handle< PADDRINFOT, NULL >::invalid
static const PADDRINFOT invalid
Invalid handle value.
Definition: Common.h:614