tcpclient.cpp

该程序可以发送邮件。在一个文件中指定邮件的服务器IP地址和发件人的邮箱以及密码。

/**
 *
 * The code to report the error may be a redundance, you can simplify it, but I need them to test
 *
 */

#include"TcpClient.h"

#include<iostream>

using namespace std;

TcpClient::TcpClient(){
 bzero(&Buf,strlen(Buf));

 if((Server_host_name=gethostbyname(HOSTNAME))==0){
  perror("Error resolving the host! TcpClient Construction\n");
  //cerr<<"Error in construction!"<<endl;
 }else{
  Port=PORT;
  bzero(&Pin,sizeof(Pin));
  Pin.sin_family=AF_INET;
  inet_pton(AF_INET,HOSTNAME,&Pin.sin_addr);
  //Pin.sin_addr.s_addr=htonl(INADDR_ANY);
  //Pin.sin_addr.s_addr=((struct in_addr *)(Server_host_name->h_addr))->s_addr;
  Pin.sin_port=htons(Port);
 }
}

TcpClient::TcpClient(int port){
  bzero(&Buf,strlen(Buf));

  if((Server_host_name=gethostbyname(HOSTNAME))==0){
  perror("Error resolving the host! TcpClient Construction\n");
  //cerr<<"Error in construction!"<<endl;
 }else{
  Port=port;
  bzero(&Pin,sizeof(Pin));
  Pin.sin_family=AF_INET;
  inet_pton(AF_INET,HOSTNAME,&Pin.sin_addr);
  //Pin.sin_addr.s_addr=htonl(INADDR_ANY);
  //Pin.sin_addr.s_addr=((struct in_addr *)(Server_host_name->h_addr))->s_addr;
  Pin.sin_port=htons(Port);
 }
}


TcpClient::TcpClient(char* hostname,int port){
 if((Server_host_name=gethostbyname(hostname))==0){
  perror("Error resolving the host! TcpClient Construction\n");
  //cerr<<"Error in construction!"<<endl;
 }else{
  Port=port;
  bzero(&Pin,sizeof(Pin));
  Pin.sin_family=AF_INET;
  inet_pton(AF_INET,hostname,&Pin.sin_addr);
  //Pin.sin_addr.s_addr=htonl(INADDR_ANY);
  //Pin.sin_addr.s_addr=((struct in_addr *)(Server_host_name->h_addr))->s_addr;
  Pin.sin_port=htons(Port);
 }
}

int TcpClient::InitTcpClient(){
 int sd;
 if((sd=(Socket_descriptor=socket(AF_INET,SOCK_STREAM,0)))==-1){
  perror("Error opening socket\n");
  return -1;
 }
 return sd;
}

int TcpClient::Connect(){
 if(connect(Socket_descriptor,(sockaddr *)&Pin,sizeof(Pin))==-1){
  perror("Error connecting to socket\n");
  return -1;
 }
 //cerr<<"Connected"<<endl;
 return 1;
}

int TcpClient::Send(T* buf){
 strcpy(Buf,buf);
 Buf[strlen(Buf)]=0;
 int s=send(Socket_descriptor,Buf,strlen(Buf),0);
//cerr<<"Send:"<<Buf<<endl;
 if(s==-1){
  perror("send");
 }
 return s;
}

int TcpClient::Recv(T* buf){
 int r=recv(Socket_descriptor,buf,BUFSIZE,0);
 if(r==-1){
  perror("recv");
 }
 return r;
}

int TcpClient::Recvc(T* ch){
 int r=recv(Socket_descriptor,ch,1,0);
 if(r==-1){
  perror("recvc");
 }
 return r;
}

void TcpClient::Close(){
 close(Socket_descriptor);
}

int TcpClient::getSockfd() const
{
 return Socket_descriptor;
}

int TcpClient::getPort() const
{
 return Port;
}