qhostinfo_win.cpp File Reference

#include <winsock2.h>
#include "qhostinfo_p.h"
#include "private/qnativesocketengine_p.h"
#include <ws2tcpip.h>
#include <private/qsystemlibrary_p.h>
#include <qurl.h>
#include <qmutex.h>

Go to the source code of this file.

Classes
struct	qt_addrinfo

Macros
#define	NI_MAXHOST   1024
#define	QT_SOCKLEN_T   int

Typedefs
typedef int(__stdcall *	freeaddrinfoProto) (qt_addrinfo *)
typedef int(__stdcall *	getaddrinfoProto) (const char *, const char *, const qt_addrinfo *, qt_addrinfo **)
typedef int(__stdcall *	getnameinfoProto) (const sockaddr *, QT_SOCKLEN_T, const char *, DWORD, const char *, DWORD, int)

Functions
static void	resolveLibrary ()
static void	translateWSAError (int error, QHostInfo *results)

Variables
static freeaddrinfoProto	local_freeaddrinfo = 0
static getaddrinfoProto	local_getaddrinfo = 0
static getnameinfoProto	local_getnameinfo = 0

Macro Definition Documentation

NI_MAXHOST

#define NI_MAXHOST   1024

Definition at line 71 of file qhostinfo_win.cpp.

Referenced by QHostInfoAgent::fromName(), and translateWSAError().

QT_SOCKLEN_T

#define QT_SOCKLEN_T   int

Definition at line 69 of file qhostinfo_win.cpp.

Referenced by QNativeSocketEnginePrivate::fetchConnectionParameters(), QHostInfoAgent::fromName(), QNativeSocketEnginePrivate::nativeBind(), QNativeSocketEnginePrivate::nativeConnect(), QNativeSocketEnginePrivate::nativeHasPendingDatagrams(), QNativeSocketEnginePrivate::nativeReceiveDatagram(), QNativeSocketEnginePrivate::nativeSendDatagram(), and translateWSAError().

Typedef Documentation

freeaddrinfoProto

typedef int(__stdcall * freeaddrinfoProto) (qt_addrinfo *)

Definition at line 76 of file qhostinfo_win.cpp.

getaddrinfoProto

typedef int(__stdcall * getaddrinfoProto) (const char *, const char *, const qt_addrinfo *, qt_addrinfo **)

Definition at line 75 of file qhostinfo_win.cpp.

getnameinfoProto

typedef int(__stdcall * getnameinfoProto) (const sockaddr *, QT_SOCKLEN_T, const char *, DWORD, const char *, DWORD, int)

Definition at line 74 of file qhostinfo_win.cpp.

Function Documentation

resolveLibrary()

static void resolveLibrary ( )

static

Definition at line 81 of file qhostinfo_win.cpp.

Referenced by translateWSAError().

{
    // Attempt to resolve getaddrinfo(); without it we'll have to fall
    // back to gethostbyname(), which has no IPv6 support.
    static bool triedResolve = false;
    if (triedResolve)
        return;

#if !defined(Q_OS_WINCE)
    QSystemLibrary ws2lib(QLatin1String("ws2_32"));
#else
    QSystemLibrary ws2lib(QLatin1String("ws2"));
#endif
    if (ws2lib.load()) {
        local_getaddrinfo = (getaddrinfoProto)ws2lib.resolve("getaddrinfo");
        local_freeaddrinfo = (freeaddrinfoProto)ws2lib.resolve("freeaddrinfo");
        local_getnameinfo = (getnameinfoProto)ws2lib.resolve("getnameinfo");
    }

    triedResolve = true;
}

translateWSAError()

static void translateWSAError ( int  error, QHostInfo *  results  )

static

Definition at line 108 of file qhostinfo_win.cpp.

{
    switch (error) {
    case WSAHOST_NOT_FOUND: //authoritative not found
    case WSATRY_AGAIN: //non authoritative not found
    case WSANO_DATA: //valid name, no associated address
        results->setError(QHostInfo::HostNotFound);
        results->setErrorString(QHostInfoAgent::tr("Host not found"));
        return;
    default:
        results->setError(QHostInfo::UnknownError);
        results->setErrorString(QHostInfoAgent::tr("Unknown error (%1)").arg(error));
        return;
    }
}

Variable Documentation

local_freeaddrinfo

freeaddrinfoProto local_freeaddrinfo = 0

static

Definition at line 79 of file qhostinfo_win.cpp.

Referenced by resolveLibrary(), and translateWSAError().

local_getaddrinfo

getaddrinfoProto local_getaddrinfo = 0

static

Definition at line 78 of file qhostinfo_win.cpp.

Referenced by resolveLibrary(), and translateWSAError().

local_getnameinfo

getnameinfoProto local_getnameinfo = 0

static

Definition at line 77 of file qhostinfo_win.cpp.

Referenced by resolveLibrary(), and translateWSAError().