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<meta name="description" content="Author:zfive5(zhaozidong)Email :zfive5@yahoo.com.cn 前些時間,以前同事叫我幫忙寫一個upd下的sock5代理,由于一些原因沒有幫成他的忙,我在這里再次對他說抱歉! 關于sock5代理的.." />
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<h1>UDP下的SOCK5代理實現
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<p id="drn">Author:zfive5(zhaozidong)Email :zfive5@yahoo.com.cn 前些時間,以前同事叫我幫忙寫一個upd下的sock5代理,由于一些原因沒有幫成他的忙,我在這里再次對他說抱歉! 關于sock5..</p>
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</div><P>Author:zfive5(zhaozidong)<BR>Email :zfive5@yahoo.com.cn</P>
<P> 前些時間,以前同事叫我幫忙寫一個upd下的sock5代理,由于一些原因<BR>沒有幫成他的忙,我在這里再次對他說抱歉! 關于sock5代理的包文和數據<BR>格式可以參考以下url中的內容:<BR> http://www.vckbase.net/document/viewdoc/?id=853<BR> http://www.vckbase.net/document/viewdoc/?id=852<BR> http://www.china-pub.com/computers/eMook/emooknew/rfctxt/RFC1928.txt</P>
<P><BR> 牙看來還是拔不了呀！醫院的口腔科星期天居然沒有人！！！大早晨在公交車<BR>上一來一回8圓錢啊！</P>
<P>upd Sock5代理下的包數據:</P>
<P> client:<BR> ver( 1 byte)+num method( 1 byte)+ methods(1 -255 byte)<BR> (05 02 00 02)</P>
<P> server:<BR> <BR> ver( 1 byte)+ num method(1 byte)<BR> (05 00 ) or ( 05 02)</P>
<P> *client( 當返回 02 時):<BR> <BR> ver(1 byte)+ name len(1 byte) +name (1-255 byte) +pass len(1 byte)+password(1 -255 byte)<BR> ( 01 01 61 01 61) </P>
<P> *server( 當返回 02 時):<BR> ver(1 byte)+status(1 byte)<BR> (05 00 )or (05 XX)</P>
<P> client:<BR> <BR> ver( 1 byte)+cmd(1 byte)+rsv( 1 byte)+address type( 1 byte)+ addrss( ?? byte) +port( 2 byte)</P>
<P> (05 03 00 01 7f 00 00 01 0f A0)</P>
<P> server:<BR> ver(1 byte)+reponse(1 byte)+rsv(1 byte)+address type(1 byte)+address(?? byte)+port( 2 byte)<BR> (05 00 00 01 7f 00 00 01 0f A0)</P>
<P> client:<BR> rsv (2 byte) + fragment( 1 byte)+ address type (1 byte)+ addr(?? byte)+ port( 2 byte) +data(??)<BR> (00 00 00 01 7f 00 00 01 0f a0 .....)<BR> server:<BR> rsv (2 byte) + fragment( 1 byte)+ address type (1 byte)+ addr(?? byte)+ port( 2 byte) +data(??)<BR> (00 00 00 01 7f 00 00 01 0f a0 .....)<BR> ....</P>
<P>test server代碼:<BR> <BR>SOCKET s=socket(AF_INET,SOCK_DGRAM,0);<BR>if(s==INVALID_SOCKET)<BR>{<BR> closesocket(s);<BR> return 0;<BR>}<BR>struct sockaddr_in addr;<BR>addr.sin_family=AF_INET;<BR>addr.sin_addr.s_addr=ADDR_ANY;<BR>addr.sin_port=htons(4000);<BR>if(bind(s,(struct sockaddr *)&addr,sizeof(struct sockaddr))==SOCKET_ERROR)<BR>{<BR> closesocket(s);<BR> return 0;<BR>}</P>
<P>while(1==1)<BR>{<BR> char sz_buf[1024];<BR> struct sockaddr in;<BR> int n_len=sizeof(struct sockaddr);<BR> if(recvfrom(s,sz_buf,1024,0,(struct sockaddr *)&in,&n_len)==SOCKET_ERROR)<BR> {<BR> closesocket(s);<BR> return 0;<BR> }</P>
<P> if(sendto(s,"Hello World",strlen("Hello World"),0,(struct sockaddr *)&in,sizeof(struct sockaddr_in))==SOCKET_ERROR)<BR> {<BR> closesocket(s); <BR> return 0;<BR> }<BR>}</P>
<P>closesocket(s);<BR>return 0;</P>
<P><BR>test client:</P>
<P>SOCKET s=socket(AF_INET,SOCK_DGRAM,0);<BR>if(s==INVALID_SOCKET)<BR>{<BR> closesocket(s);<BR> return;<BR>}</P>
<P>struct sockaddr_in addr1;<BR>addr1.sin_family=AF_INET;<BR>addr1.sin_addr.s_addr=ADDR_ANY;<BR>addr1.sin_port=htons(4001);<BR>if(bind(s,(struct sockaddr *)&addr1,sizeof(struct sockaddr_in))==SOCKET_ERROR)<BR>{<BR> closesocket(s);<BR> return;<BR>}</P>
<P>zf5_sock5_udp udp;<BR>strcpy(udp.m_sz_name,"a");<BR>strcpy(udp.m_sz_pass,"a");<BR>if(udp.connect_sock5_udp("127.0.0.1",1080,&addr1)<0)<BR>{<BR> closesocket(s);<BR> return;<BR>}</P>
<P>struct sockaddr_in addr2;<BR>addr2.sin_family=AF_INET;<BR>addr2.sin_addr.s_addr=inet_addr("127.0.0.1");<BR>addr2.sin_port=htons(4000);<BR>if(udp.send_sock5_udp(s,"hello",strlen("hello"),&addr2)<0)<BR>{<BR> closesocket(s);<BR> return;<BR>}</P>
<P>char sz_buf[1024]="";<BR>memset(sz_buf,0,1024);<BR>struct sockaddr_in addr3;<BR>if(udp.recv_sock5_udp(s,sz_buf,&addr3)<0)<BR>{<BR> closesocket(s);<BR> return;<BR>}</P>
<P>AfxMessageBox(sz_buf);<BR>return;</P>
<P><BR>zf5_sock5_udp.h文件:</P>
<P>#pragma once<BR>#pragma comment(lib,"ws2_32.lib")</P>
<P>#include <winsock2.h><BR>#define ZF5_BUFFER_SIZE1 255<BR>#define ZF5_BUFFER_SIZE2 1024<BR>#define ZF5_BUFFER_SIZE3 8192<BR>class zf5_sock5_udp<BR>{<BR>public:</P>
<P> //構造函數<BR> zf5_sock5_udp(void);</P>
<P> //析構函數<BR> virtual ~zf5_sock5_udp(void);</P>
<P> //創建sock5的upd代理<BR> int connect_sock5_udp(char *sz_addr_proxy,int n_port_proxy,struct sockaddr_in *p_addr);</P>
<P> //通過sock5發送udp數據<BR> int send_sock5_udp(int s_udp,char *sz_buf,int n_len,struct sockaddr_in *p_addr);</P>
<P> //通過sock5接收udp數據<BR> int recv_sock5_udp(int s_udp,char *sz_buf,struct sockaddr_in *p_addr);<BR> <BR> //關閉sock5的udp代理<BR> int close_sock5_udp();<BR> <BR> //代理服務器用戶名稱<BR> char m_sz_name[ZF5_BUFFER_SIZE1+2];<BR> <BR> //代理服務器用戶密碼<BR> char m_sz_pass[ZF5_BUFFER_SIZE1+2];</P>
<P>private:<BR> //遠端udp服務器地址<BR> char m_sz_udp_srv[ZF5_BUFFER_SIZE2+2];<BR> <BR> //遠端udp服務器端口<BR> int m_n_port;<BR> <BR> //地址類型<BR> int m_n_addrtype;<BR> <BR> //sock5代理的tcp連接<BR> int m_n_sock5;<BR>};</P>
<P>zf5_sock5_udp.cpp文件:</P>
<P><BR>#include "stdafx.h"<BR>#include ".\zf5_sock5_udp.h"</P>
<P>//構造函數<BR>zf5_sock5_udp::zf5_sock5_udp(void)<BR>{<BR> WSADATA wsa;<BR> WSAStartup(MAKEWORD(1,1),&wsa);<BR> m_n_addrtype=-1;<BR> m_n_port=0;<BR> m_n_sock5=INVALID_SOCKET;<BR> m_sz_name[0]=0;<BR> m_sz_pass[0]=0;<BR> m_sz_udp_srv[0]=0;</P>
<P>}</P>
<P>//析構函數<BR>zf5_sock5_udp::~zf5_sock5_udp(void)<BR>{<BR> close_sock5_udp();<BR> WSACleanup();<BR>}</P>
<P>//創建sock5的upd代理<BR>int zf5_sock5_udp::connect_sock5_udp(char *sz_addr_proxy,int n_port_proxy,struct sockaddr_in *p_addr)<BR>{<BR> SOCKET s_sock5_tcp=INVALID_SOCKET;</P>
<P> s_sock5_tcp=socket(AF_INET,SOCK_STREAM,0);<BR> if(s_sock5_tcp==INVALID_SOCKET)<BR> {<BR> return -1;<BR> }<BR> <BR> timeval tv;<BR> tv.tv_sec=10;<BR> tv.tv_usec=0;<BR> if(setsockopt(s_sock5_tcp,SOL_SOCKET,SO_RCVTIMEO,(char *)&tv,sizeof(timeval))==SOCKET_ERROR)<BR> {<BR> closesocket(s_sock5_tcp);<BR> return -1;<BR> }</P>
<P> struct sockaddr_in sa_1;<BR> sa_1.sin_family=AF_INET;<BR> sa_1.sin_addr.s_addr=inet_addr(sz_addr_proxy);<BR> sa_1.sin_port=htons(n_port_proxy);<BR> if(sa_1.sin_addr.s_addr==INADDR_NONE)<BR> {<BR> struct hostent *p=gethostbyname(sz_addr_proxy);<BR> if(p==NULL)<BR> {<BR> closesocket(s_sock5_tcp);<BR> return -1;<BR> }<BR> sa_1.sin_addr.s_addr=((LPIN_ADDR)p->h_addr)->s_addr;<BR> }</P>
<P> if(connect(s_sock5_tcp,(struct sockaddr *)&sa_1,sizeof(struct sockaddr_in))==SOCKET_ERROR)<BR> {<BR> closesocket(s_sock5_tcp);<BR> return -1;<BR> }</P>
<P> char sz_buf[ZF5_BUFFER_SIZE2+2];</P>
<P> memset(sz_buf,0,ZF5_BUFFER_SIZE2);<BR> sz_buf[0]=0x05;<BR> sz_buf[1]=0x02;<BR> sz_buf[2]=0x00;<BR> sz_buf[3]=0x02;<BR> if(send(s_sock5_tcp,sz_buf,4,0)==SOCKET_ERROR)<BR> {<BR> closesocket(s_sock5_tcp);<BR> return -1;<BR> }</P>
<P> memset(sz_buf,0,ZF5_BUFFER_SIZE2);<BR> if(recv(s_sock5_tcp,sz_buf,ZF5_BUFFER_SIZE2,0)==SOCKET_ERROR)<BR> {<BR> closesocket(s_sock5_tcp);<BR> return -1;<BR> }</P>
<P> if(sz_buf[0]==0x05&&sz_buf[1]==0x02)<BR> {<BR> int n_temp1=0;<BR> int n_temp2=0;<BR> memset(sz_buf,0,ZF5_BUFFER_SIZE2);<BR> n_temp1=strlen(m_sz_name);<BR> sz_buf[0]=0x01;<BR> sz_buf[1]=n_temp1;<BR> memcpy((void *)&(sz_buf[2]),(void *)&(m_sz_name[0]),n_temp1);<BR> n_temp2=strlen(m_sz_pass);<BR> sz_buf[1+n_temp1+1]=n_temp2;<BR> memcpy((void *)&(sz_buf[1+n_temp1+2]),(void *)&(m_sz_pass[0]),n_temp2);<BR> if(send(s_sock5_tcp,sz_buf,n_temp1+n_temp2+3,0)==SOCKET_ERROR)<BR> {<BR> closesocket(s_sock5_tcp);<BR> return -1;<BR> }</P>
<P> memset(sz_buf,0,ZF5_BUFFER_SIZE2);<BR> if(recv(s_sock5_tcp,sz_buf,ZF5_BUFFER_SIZE2,0)==SOCKET_ERROR)<BR> {<BR> closesocket(s_sock5_tcp);<BR> return -1;<BR> }</P>
<P> if(sz_buf[0]!=0x01||sz_buf[1]!=0x00)<BR> {<BR> closesocket(s_sock5_tcp);<BR> return -1;<BR> }<BR> }<BR> else if(sz_buf[0]!=0x05||sz_buf[1]!=0x00)<BR> {<BR> closesocket(s_sock5_tcp);<BR> return -1;<BR> }</P>
<P> memset(sz_buf,0,ZF5_BUFFER_SIZE2);<BR> sz_buf[0]=0x05;<BR> sz_buf[1]=0x03;<BR> sz_buf[2]=0x00;<BR> sz_buf[3]=0x01;</P>
<P> *((int *)(&sz_buf[4]))=p_addr->sin_addr.s_addr;<BR> *((short *)(&(sz_buf[8])))=(short)p_addr->sin_port;</P>
<P> if(send(s_sock5_tcp,sz_buf,10,0)==SOCKET_ERROR)<BR> {<BR> closesocket(s_sock5_tcp);<BR> return -1;<BR> }</P>
<P> memset(sz_buf,0,ZF5_BUFFER_SIZE2);<BR> if(recv(s_sock5_tcp,sz_buf,ZF5_BUFFER_SIZE2,0)==SOCKET_ERROR)<BR> {<BR> closesocket(s_sock5_tcp);<BR> return -1;<BR> }</P>
<P> if(sz_buf[0]!=0x05||sz_buf[1]!=0x00)<BR> {<BR> closesocket(s_sock5_tcp);<BR> return -1;<BR> }</P>
<P> if(sz_buf[3]==0x01)<BR> {<BR> int n_ip=*((int *)&sz_buf[4]);<BR> struct in_addr in;<BR> in.S_un.S_addr=n_ip;<BR> memset((void *)m_sz_udp_srv,0,sizeof(m_sz_udp_srv));<BR> strcpy(m_sz_udp_srv,inet_ntoa(in));<BR> m_n_port=htons(*((short *)&(sz_buf[8])));<BR> m_n_addrtype=0x01;<BR> }<BR> else if(sz_buf[3]==0x03)<BR> {<BR> memset((void *)m_sz_udp_srv,0,sizeof(m_sz_udp_srv));<BR> strncpy(m_sz_udp_srv,&sz_buf[5],sz_buf[4]);<BR> m_n_port=htons(*((short *)&(sz_buf[5+sz_buf[4]])));<BR> m_n_addrtype=0x03;<BR> }<BR> else<BR> {<BR> closesocket(s_sock5_tcp);<BR> return -1;<BR> }</P>
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