商业编程-源码-检查邮件服务器的邮件信息的程序源代码(支持SOCKS代理).zip

/* * socksapp - 通过SOCKS代理向pop.mail.yahoo.com这个服务器发送一个用户登录请求，并取得 * 该POP3服务器的响应。该程序演示了如何使得自己的网络程序通透过SOCKS防火墙而向远程服务 * 器通信。 * 要求运行socksapp的主机的DNS设置能解释得通pop.mail.yahoo.com这个服务器地址。 * 128.11.68.63 - 要不，你就直接使用这个IP地址，这是我PING出来的IP。 */ //作者：冬雪 //2001-1-31 #ifdef WIN32 #include <winsock2.h> #endif #include <stdio.h> #include "ssocks.h" #include "sdns.h" #define SOCKS_PROXY "192.168.100.2" #define SOCKS_PROXY_PORT 1080 #define TARGET_POP3SERVER "128.11.68.63" //POP.MAIL.YAHOO.COM int Usage(char** argv) { printf("$@ Usage:\n\ %s socksproxyip socksproxyport pop3server youraccount yourpassword\n\ socksproxyip - socks proxy 's ip address\n\ socksproxyport - socks proxy's port,1080 default\n\ pop3server - pop3 server \n\ youraccount - Your account on that pop3server\n\ yourpassword - Your password of that account \n", argv[0]); return TRUE; } int main(int argc, char* argv[]) { //0.初始化SOCKET printf("* SocksApp ver 1.0 \n* Powered by Billy.(dxshi@yahoo.com)\n\n"); if(argc<6) { Usage(argv); return 0; } #ifdef WIN32 WSADATA wsaData; if (WSAStartup(0x0101, &wsaData)) { printf("Error:socket init failed!\n"); return FALSE; } #endif //1.创建客户端SOCKET int clisock=socket(AF_INET,SOCK_STREAM,0); if(clisock==INVALID_SOCKET) { printf("Create socket failed!\n"); return FALSE; } //2.向SOCK5服务器连接 struct sockaddr_in saproxy; memset(&saproxy, 0, sizeof(saproxy)); saproxy.sin_family = AF_INET; saproxy.sin_addr.s_addr = inet_addr(argv[1]);//这是我的SOCKS服务器 saproxy.sin_port = htons(atoi(argv[2])); if(connect(clisock, (struct sockaddr*)&saproxy, sizeof(struct sockaddr)) != 0) { printf("Connect to socks proxy: %s port %d failed!\n",SOCKS_PROXY,SOCKS_PROXY_PORT); return FALSE; } else { printf("* Connect to socks proxy: %s port %d success!\n",SOCKS_PROXY,SOCKS_PROXY_PORT); } //3.向SOCK5服务器认证 //源文： /* The client connects to the server, and sends a version identifier/method selection message: +----+----------+----------+ |VER | NMETHODS | METHODS | +----+----------+----------+ | 1 | 1 | 1 to 255 | +----+----------+----------+ The VER field is set to X'05' for this version of the protocol. The NMETHODS field contains the number of method identifier octets that appear in the METHODS field. */ CSSocks socks; if(!socks.Auth(clisock,AUTH_NO)) //用于SOCK5服务器不需要认证的情况！ { printf("Auth failed!\n"); return FALSE; } //4.与真正的服务器建立连接 struct sockaddr_in tarsocksrv; memset(&tarsocksrv,0,sizeof(tarsocksrv)); //tarsocksrv.sin_addr.s_addr = inet_addr(argv[3]); CSDns dns; tarsocksrv.sin_addr = dns.GetIpByHost(argv[3]); tarsocksrv.sin_port = htons(110); tarsocksrv.sin_family = AF_INET; if(!socks.Connect(clisock,tarsocksrv))//yahoo. { printf("Connect to yahoo pop3 server failed!\n"); return FALSE; } else { printf("* Connect to pop3 server %s : %d success!\n", TARGET_POP3SERVER,110); } //到此，便使原来的程序支持SOCKS代理！ //下面你就可以利用clisock与pop.mail.yahoo.com 进行通信了！ //比如：进行POP3用户名协商 char szRecv[128]; memset(szRecv,0,128); recv(clisock,szRecv,127,0); printf("* WELCOME <== %s\n",szRecv); char szPopProto[128]; memset(szPopProto,0,128); sprintf(szPopProto,"USER %s\r\n",argv[4]); int nSend=send(clisock,szPopProto,strlen(szPopProto),0); printf("* COMMAND ==>: %s\n",szPopProto); //char szRecv[128]; memset(szRecv,0,128); recv(clisock,szRecv,127,0); printf("* RESPONSE <== %s",szRecv); memset(szPopProto,0,128); sprintf(szPopProto,"PASS %s\r\n",argv[5]); nSend=send(clisock,szPopProto,strlen(szPopProto),0); printf("* COMMAND ==>: %s\n",szPopProto); memset(szRecv,0,128); recv(clisock,szRecv,127,0); printf("* RESPONSE <== %s",szRecv); closesocket(clisock); shutdown(clisock,SD_BOTH); return 0; }