在Symbian模拟器和真机上都不能使用raw socket。

最新推荐文章于 2012-09-18 14:28:26 发布

原创最新推荐文章于 2012-09-18 14:28:26 发布 · 950 阅读

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#symbian #socket #constants #delete #variables #struct

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本文通过两个示例对比了Symbian系统中RSocket与POSIX标准socket的使用方法。一个示例展示了如何使用Symbian自带的RSocket进行编程，另一个则介绍了如何在该系统中使用POSIX标准的socket进行网络编程。

今天晚上实验了两种方法，一种是用Symbian自己的RSocket，另一种是用POSIX标准的 socket。

使用的是Carbide C++ 1.1

源代码如下：

1。RSocket版

/*
============================================================================
Name        : Sniffer.cpp
Author      :
Copyright   : Your copyright notice
Description : Exe source file
============================================================================
*/

// Include Files

#include "Sniffer.h"
#include <e32base.h>
#include <e32std.h>
#include <e32cons.h> // Console
#include <in_sock.h>
#include <es_sock.h>

// Constants

_LIT(KTextConsoleTitle, "Console");
_LIT(KTextFailed, " failed, leave code = %d");
_LIT(KTextPressAnyKey, " [press any key]/n");

// Global Variables

LOCAL_D CConsoleBase* console; // write all messages to this

// Local Functions

LOCAL_C void MainL()
    {
   RSocketServ ss;
    RSocket listenSocket;
    TRequestStatus status;
    TBuf8<3000> getBuff;
    TBuf<3000> buff16;


    User::LeaveIfError(ss.Connect());

    User::LeaveIfError(listenSocket.Open(ss, KAfInet, KSockRaw, KProtocolInetIp)); //返回错误是-28：Band Name

    console->Write(_L("Hello, world!/n"));
    }

LOCAL_C void DoStartL()
    {
    // Create active scheduler (to run active objects)
    CActiveScheduler* scheduler = new (ELeave) CActiveScheduler();
    CleanupStack::PushL(scheduler);
    CActiveScheduler::Install(scheduler);

MainL();

    // Delete active scheduler
    CleanupStack::PopAndDestroy(scheduler);
    }

// Global Functions

GLDEF_C TInt E32Main()
    {
    // Create cleanup stack
    __UHEAP_MARK;
    CTrapCleanup* cleanup = CTrapCleanup::New();

    // Create output console
    TRAPD(createError, console = Console::NewL(KTextConsoleTitle, TSize(KConsFullScreen,KConsFullScreen)));
    if (createError)
        return createError;

    // Run application code inside TRAP harness, wait keypress when terminated
    TRAPD(mainError, DoStartL());
    if (mainError)
        console->Printf(KTextFailed, mainError);
    console->Printf(KTextPressAnyKey);
    console->Getch();

    delete console;
    delete cleanup;
    __UHEAP_MARKEND;
    return KErrNone;
    }

2。POSIX函数版

/*
* The classic "Hello World" program
*/
#include <types.h>
#include <stdio.h>
#include <socket.h>
#include <in.h>

int sock = 0;
int bytes_received;
int len = 0;
char *data = NULL;
char buffer[65535];
//struct sockaddr_in addr;
struct iphdr *ip;
struct tcphdr *tcp;

int main (int argc, char *argv[])
{
argc=0;
argv=NULL;

if((sock = socket(AF_INET,SOCK_RAW,IPPROTO_TCP)) == -1) //返回了-1
{ /* 使用SOCK_RAW */
printf("sniffer failt/n");
}
printf("Hello World/n");
return (int)0;
}