#include?“stdio.h“
#include?“pcap.h“
#pragma?comment（lib“wpcap.lib“）?
#pragma?comment（lib“WS2_32.lib“）??

struct?EthernetHeader
{
????u_char?DestMAC[6];
????u_char?SourMAC[6];
????u_short?EthType;
};
struct?IpHeader
{
????unsigned?char?Version_HLen;
????unsigned?char?TOS;
????short?Length;
????short?Ident;
????short?Flags_Offset;
????unsigned?char?TTL;
????unsigned?char?Protocol;
????short?Checksum;
????unsigned?int?SourceAddr;
????unsigned?int?DestinationAddr;
};
struct?PsdTcpHeader
{
????unsigned?long?SourceAddr;
????unsigned?long?DestinationAddr;
????char?Zero;
????char?Protcol;
????unsigned?short?TcpLen;
};
struct?TcpHeader
{
????unsigned?short?SrcPort;
????unsigned?short?DstPort;
????unsigned?int?SequenceNum;
????unsigned?int?Acknowledgment;
????unsigned?char?HdrLen;
????unsigned?char?Flags;
????unsigned?short?AdvertisedWindow;
????unsigned?short?Checksum;
????unsigned?short?UrgPtr;
};
unsigned?short?checksum（unsigned?short?*data?int?length）
{
????unsigned?long?temp?=?0;
????while?（length?>?1）
????{
????????temp?+=??*data++;
????????length?-=?sizeof（unsigned?short）;
????}
????if?（length）
????{
????????temp?+=?*（unsigned?short*）data;
????}
????temp?=?（temp?>>?16）?+?（temp?&0xffff）;
????temp?+=?（temp?>>?16）;
????return?（unsigned?short）（~temp）;
}

int?main（int?argc?char?**argv）
{
????struct?EthernetHeader?ethernet;
????struct?IpHeader?ip;
????struct?TcpHeader?tcp;
????struct?PsdTcpHeader?ptcp;
????int?Result;
????unsigned?char?SendBuffer[200];
????char?TcpData[]?=?“Tcp?Data?Test.“;
????pcap_if_t?*NetwokDevice;
????pcap_t?*WinpcapHandle;
????pcap_if_t?*Device;
????char?WinpcapError[PCAP_ERRBUF_SIZE];
????int?DeviceIndex?=?0;
????char?DeviceName[100][1000];
????int?i;
????Result?=?pcap_findalldevs（&NetwokDevice?WinpcapError）;
????if?（Result?==??-?1）
????{
????????printf（“pcap_findalldevs?Error“）;
????????return?0;
????}?for?（Device?=?NetwokDevice?i?=?0;?Device?&&?i?next?i++）
????{
????????printf（“Number?%d:“?i）;
????????printf（“%s:“?Device->name）;
????????printf（“%s\n“?Device->description）;
????????sprintf（DeviceName[i]?“%s“?Device->name）;
????}
????for?（;;）
????{
????????printf（“Please?Choose?the?Device?Number:（0-%d）“?i?-?1）;
????????scanf（“%d“?&DeviceIndex）;
????????if?（DeviceIndex?>?i?-?1?||?DeviceIndex?????????{
????????????printf（“Device?Number?Error\n“）;
????????????continue;
????????}
????????else
????????????break;
????}
????WinpcapHandle?=?pcap_open_live（LPCTSTR（DeviceName[DeviceIndex]）?65535?1?1000?WinpcapError）;
????if?（WinpcapHandle?==?NULL）
????{
????????printf（“pcap_open_live?error“）;
????????pcap_freealldevs（NetwokDevice）;
????????return?0;
????}
????memset（ðernet?0?sizeof（ethernet））;
????BYTE?destmac[8];
????destmac[0]?=?0x00;
????destmac[1]?=?0x11;
????destmac[2]?=?0x22;
????destmac[3]?=?0x33;
????destmac[4]?=?0x44;
????destmac[5]?=?0x55;
????memcpy（ethernet.DestMA

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????6118??2011-12-05?17:05??maketcppacket.cpp

-----------?---------??----------?-----??----

?????????????????6118????????????????????1