BCB-DG's Blog

...

日志

关于我

BCB-DG

old programer

文章分类

LOFTER精选

八招诀窍，教你实力撩妹 >

网易考拉推荐

net send

2009-09-21 16:28:47| 分类： Delphi | 标签： |举报 |字号大中小订阅

下载LOFTER 我的照片书 |

徐龙

unit NetSendPacket;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs;

const
IP_HDRINCL=2;
type
TPacket = array [0..8192] of byte;
var
// net send 消息的网络封包头格式,按此格式填充UDP包并发送到目标机的 135 端口.对方能收到信息.需要启动windows的消息服务.
  packet_header:array[0..79] of byte =(
  $04,$00,$28,$00
  ,$10,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  ,$00,$00,$00,$00,$f8,$91,$7b,$5a,$00,$ff,$d0,$11,$a9,$b2,$00,$c0
  ,$4f,$b6,$e6,$fc

  ,$ff,$ff,$ff,$ff // @40 : unique id over 16 bytes
  ,$ff,$ff,$ff,$ff
  ,$ff,$ff,$ff,$ff
  ,$ff,$ff,$ff,$ff

  ,$00,$00,$00,$00,$01,$00,$00,$00,$00,$00,$00,$00
  ,$00,$00,$ff,$ff,$ff,$ff

  ,$ff,$ff,$ff,$ff // @74 : fields length

  ,$00,$00);

  field_header :array [0..11]of byte =
  ($ff,$ff,$ff,$ff // @0 : field length
  ,$00,$00,$00,$00
  ,$00,$00,$00,$00); // @8 : field length

function sd( FromIp:string; Toip:string;ToPort:integer;FromName:string; ToName:string; msg:string ):bool ;

implementation

uses RawHeaders,WinSock;

//构造IP包时需要自已计算校验码,并填充到包.此函数负责计算校验码
function CheckSum(var Buffer;Size:integer):Word;
type
   TwordArray=Array[0..1] of Word;
var
   ChkSum:LongWord;
   i     :Integer;
begin
   ChkSum:=0;
   i:=0;
   While Size>1 do
    begin
      ChkSum:=ChkSum+TwordArray(Buffer)[i];
      inc(i);
      Size:=Size-SizeOf(Word);
    end;
   if Size=1 then ChkSum:=ChkSum+Byte(TwordArray(Buffer)[i]);
   ChkSum:=(ChkSum shr 16)+(ChkSum and $FFFF);
   ChkSum:=ChkSum+(ChkSum shr 16);
   Result:=Word(ChkSum);
end;

//发送封包函数
function sd( FromIp:string; Toip:string; ToPort:integer ;FromName:string; ToName:string; msg:string ):bool ;
var
    DwFromIP:LongWord;
    DwToIP :longWord;

    wsaData:TWSADATA ;
    s,ret :integer;
    addr:TSockAddr ;
    bOpt:integer;

    packet : array [0..8192] of byte ;
    fields_size,packet_size:integer;
    pw:pdword;
    len:longint;

    IpHdr:     TIpHdr;
    IpVersion :Word;
    IpSize:    Word;
    udpHdr:    TUdpHdr;
    udpsize:word;
    psendHdr:^TSendHdr ;
    udb_checkSum:word;
    ip_packet: array [0..4095] of byte ;
    ip_packet_size:integer;
    pb:pbyte;

begin
WSAStartup(makeword(2,2), wsaData);
DwFromIP:=inet_Addr(pchar(FromIp)) ;
DwToIP:=inet_Addr(pchar(Toip)) ;

fillchar(addr, sizeof(addr),0);
addr.sin_addr.s_addr := DwToIP;
addr.sin_port := htons(ToPort);
addr.sin_family := AF_INET;

fillchar(packet,sizeof(packet),0);
packet_size:=0;

move(packet_header,packet[packet_size],sizeof(packet_header));
inc(packet_size,sizeof(packet_header));

len:=length(FromName)+1;
fillchar(field_header,sizeof(field_header),0);
field_header[0]:=len;
field_header[8]:=len;
move(field_header,packet[packet_size],sizeof(field_header));
inc(packet_size,sizeof(field_header));
StrCopy(@packet[packet_size], PAnsiChar(fromName));
inc(packet_size,(((len - 1) shr 2) + 1) shl 2); // align to 4 bytes

len:=length(ToName)+1;
fillchar(field_header,sizeof(field_header),0);
field_header[0]:=len;
field_header[8]:=len;
move(field_header,packet[packet_size],sizeof(field_header));
inc(packet_size,sizeof(field_header));
StrCopy(@packet[packet_size], PAnsiChar(ToName));
inc(packet_size,(((len - 1) shr 2) + 1) shl 2); // align to 4 bytes

len:=length(msg)+1;
fillchar(field_header,sizeof(field_header),0);
field_header[0]:=len;
field_header[8]:=len;
move(field_header,packet[packet_size],sizeof(field_header));
inc(packet_size,sizeof(field_header));
StrCopy(@packet[packet_size], PChar(msg));
inc(packet_size,len);

fields_size := packet_size - sizeof(packet_header);
pw:=@packet[40];
pw^:=gettickcount();

pw:=@packet[74] ;
pw^:= fields_size;

ip_packet_size:=sizeof(TIpHdr)+sizeof(TUdpHdr)+packet_size;
IpVersion:=4;
IpSize:=sizeof(TIpHdr) div sizeof(LongWord);
IpHdr.ip_verlen:=(IpVersion shl 4) or IpSize;
IpHdr.ip_tos:=0;
IpHdr.ip_len:=htons(ip_packet_size);
IpHdr.ip_id:=0;
IpHdr.ip_off:=0;
IpHdr.ip_ttl:=128;
IpHdr.ip_p:=IPPROTO_UDP;
IpHdr.ip_sum:=0;
IpHdr.ip_src:=dwFromIP;
IpHdr.ip_dst:=DwToIP;

udpsize:=sizeof(TudpHdr)+packet_size;
udpHdr.udp_sport:=htons(135);
udpHdr.udp_dport:=htons(135);
udpHdr.udp_ulen:=htons(udpsize);
udpHdr.udp_sum:=0;

//以下创建套接字时,采用了IPPROTO_UDP,所以不用做checksum
{
fillChar(ip_packet,sizeof(ip_packet),0);
pb:=@ip_packet[0];
psendHdr:= @ip_packet[0];
psendHdr^.send_src:=IpHdr.ip_src;
psendHdr^.send_dst:=IpHdr.ip_dst;
psendHdr^.send_P:=IpHdr.ip_p;
psendHdr^.send_len:= udpHdr.udp_ulen;

inc(pb,sizeof(TSendHdr));
move(udpHdr,pb^,sizeof(TudpHdr));
inc(pb,sizeof(TudpHdr));
Move(packet,pb^,packet_size);
udpHdr.udp_sum:=CheckSum(ip_packet,sizeof(TSendHdr)+sizeof(TudpHdr)+packet_size);

IpHdr.ip_sum:=checksum(ip_packet,ip_packet_size);
}

fillChar(ip_packet,sizeof(ip_packet),0);
pb:=@ip_packet[0];
Move(IpHdr,pb^,sizeof(TIpHdr));
inc(pb,sizeof(TIpHdr));
Move(udpHdr,pb^,sizeof(TudpHdr));
inc(pb,sizeof(TudpHdr));
Move(packet,pb^,packet_size);

//创建RawSocket
   s :=socket(AF_INET,SOCK_RAW,IPPROTO_UDP);
   if (s=INVALID_SOCKET) then
    begin
      showmessage('创建Socket错误');
      exit;
    end;

bOpt:=1;
//设置要以 IP 包传输
ret:=SetSockOpt(s,IPPROTO_IP,IP_HDRINCL,@bOpt,sizeof(bopt));
if ret=SOCKET_ERROR then
    begin
      showmessage('设置Socket错误');
      exit;
    end;
ret:=sendto(s, ip_packet, ip_packet_size, 0, TSOCKADDR(addr), sizeof(addr));
if ret=SOCKET_ERROR then showmessage('sendto 错误');
CloseHandle(s);

WSACleanup;

end;

end.

评论这张

转发至微博

阅读(1142)| 评论(0)

推荐转载

历史上的今天

this.p={  m:2,
              b:2,
              loftPermalink:'',
              id:'fks_082075086081088064081085080095087094083065087084083068',
              blogTitle:'net send',
              blogAbstract:'<SPAN\>\r\n<P\>徐龙</P\>\r\n<P\>unit NetSendPacket;</P\>\r\n<P\>interface</P\>\r\n<P\>uses<BR\>  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,<BR\>  Dialogs;</P\>\r\n<P\>const<BR\>  IP_HDRINCL=2;<BR\>type <BR\>  TPacket = array [0..8192] of byte;<BR\>var<BR\>  // net send 消息的网络封包头格式,按此格式填充UDP包并发送到目标机的 135 端口.对方能收到信息.需要启动windows的消息服务.<BR\>  packet_header:array[0..79] of byte =(</P\></SPAN\>',
              blogTag:'',
              blogUrl:'blog/static/38223257200982142847613',
              isPublished:1,
              istop:false,
              type:2,
              modifyTime:0,
              publishTime:1253521727613,
              permalink:'blog/static/38223257200982142847613',
              commentCount:0,
              mainCommentCount:0,
              recommendCount:1,
              bsrk:-100,
              publisherId:0,
              recomBlogHome:false,
              currentRecomBlog:false,
              attachmentsFileIds:[],
              vote:{},
              groupInfo:{},
              friendstatus:'none',
              followstatus:'unFollow',
              pubSucc:'',
              visitorProvince:'',
              visitorCity:'',
              visitorNewUser:false,
              postAddInfo:{},
              mset:'000',
              mcon:'',
              srk:-100,
              remindgoodnightblog:false,
              isBlackVisitor:false,
              isShowYodaoAd:false,
              hostIntro:'old programer',
              hmcon:'1',
              selfRecomBlogCount:'0',
              lofter_single:'<a hidefocus="true" target="_blank" href="http://inpin.blog.163.com/blog/static/2633040402016620112520219/"><img onload="var nimg = new Image(); nimg.src=\'http://blog.163.com/newpage/images/analyse.png?lofter_single&t=\'+new Date().getTime()" border="0" src="http://imglf.nosdn.127.net/img/TlZCWHdFWFpidkQ1dGtJK1N5cFRBNzBLUFFPYnJEVi9LWk1KTzJlMTU2Yz0.jpg"/></a>'
            }

{list a as x}
    {if !!x}
    <div class="iblock nbw-fce nbw-f40">
      <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.visitorName}/">
      {if x.visitorName==visitor.userName}
      <img alt="${x.visitorNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.visitorName)}&r=${visitor.imageUpdateTime}"/>
      {else}
      <img alt="${x.visitorNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.visitorName)}"/>
      {/if}
      </a>
      <div class="cwd vname thide">
        {if x.moveFrom=='wap'}
          <a class="noul pnt" target="_blank" href="http://blog.163.com/services/wapblog.html?frompersonalbloghome"><span title="来自网易手机博客" class="iblock wapIcon"> </span></a>
        {elseif x.moveFrom=='iphone'}
          <a class="noul pnt" target="_blank"><span title="来自iPhone客户端" class="iblock iphoneIcon"> </span></a>
        {elseif x.moveFrom=='android'}
          <a class="noul pnt" target="_blank"><span title="来自Android客户端" class="iblock androidIcon"> </span></a>
        {elseif x.moveFrom=='mobile'}
          <a class="noul pnt" target="_blank" href="http://blog.163.com/services/emsblog.html?frompersonalbloghome"><span title="来自网易短信写博" class="iblock wapIcon"> </span></a>
        {/if}
        <a class="fc03 m2a"  target="_blank" hidefocus="true" href="http://blog.163.com/${x.visitorName}/">
          ${fn(x.visitorNickname,8)|escape}
        </a>
      </div>
    </div>
    {/if}
    {/list}

<#--最新日志，群博日志--> <#--推荐日志-->

<p class="fc06">推荐过这篇日志的人：</p>
    <div>
      {list a as x}
      {if !!x}
      <div class="iblock nbw-fce nbw-f40">
        <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.recommenderName}/">
        <img alt="${x.recommenderNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.recommenderName)}"/>
        </a>
        <div class="cwd thide">
          <a class="fc03 m2a" target="_blank" hidefocus="true" href="http://blog.163.com/${x.recommenderName}/">
            ${fn(x.recommenderNickname,6)|escape}
          </a>
        </div>
      </div>
      {/if}
      {/list}
    </div>
    {if !!b&&b.length>0}
    <p  class="fc06">他们还推荐了：</p>
    <ul>
    {list b as y}
      {if !!y}
        <li class="rrb"><span class="iblock">·</span><a class="fc03 m2a" target="_blank" href="http://blog.163.com/${y.recommendBlogPermalink}/?from=blog/static/38223257200982142847613">${y.recommendBlogTitle|escape}</a></li>
      {/if}
    {/list}
    </ul>
    {/if}

<#--引用记录--> <#--博主推荐--> <#--随机阅读--> <#--首页推荐--> <#--历史上的今天--> <#--被推荐日志--> <#--上一篇，下一篇--> <#-- 热度 -->

{list a as x}
    {if !!x}
    <div class="hotItem iblock nbw-fce nbw-f40">
      <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/">
      {if x.publisherUsername==visitor.userName}
      <img alt="${x.publisherNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.publisherUsername)}&r=${visitor.imageUpdateTime}"/>
      {else}
      <img alt="${x.publisherNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.publisherUsername)}"/>
      {/if}
      </a>
      <div class="cwd vname thide">
        <a class="fc03 m2a"  target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/">
          ${fn(x.publisherNickname,8)|escape}
        </a>
      </div>
      <a class="f-myLikeIcons hottype {if x.type==1} js-liketype{elseif x.type==2} js-reblogtype{elseif x.type==3} js-sharetype{else}{/if}" target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/"> </a>
    </div>
    {/if}
    {/list}

<#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->

页脚

我的照片书 - 博客风格 - 手机博客 - 下载LOFTER APP - 订阅此博客

BCB-DG's Blog

导航

日志

net send

历史上的今天

最近读者

热度

评论

页脚