#include "stdafx.h"
#include <iostream>
#include <WinSock2.h>
using namespace std;
#pragma comment(lib,"ws2_32.lib")
#define _WINSOCK_DEPRECATED_NO_WARNINGS
struct Base64Date6
{
unsigned int d4 : 6;
unsigned int d3 : 6;
unsigned int d2 : 6;
unsigned int d1 : 6;
};
// 协议中加密部分使用的是base64方法
char ConvertToBase64(char c6);
void EncodeBase64(char*dbuf, char*buf128, int len);
void SendMail(char*email, char*body);
int OpenSocket(struct sockaddr *addr);
char ConvertToBase64(char uc)
{
if (uc < 26)
{
return'A' + uc;
}
if (uc < 52)
{
return'a' + (uc - 26);
}
if (uc < 62)
{
return'0' + (uc - 52);
}
if (uc == 62)
{
return'+';
}
return'/';
}
// base64的实现
void EncodeBase64(char*dbuf, char*buf128, int len)
{
struct Base64Date6*ddd = NULL;
int i = 0;
char buf[256] = { 0 };
char *tmp = NULL;
char cc = '\0';
memset(buf, 0, 256);
strcpy_s(buf, buf128);
for (i = 1; i <= len / 3; i++)
{
tmp = buf + (i - 1) * 3;
cc = tmp[2];
tmp[2] = tmp[0];
tmp[0] = cc;
ddd = (struct Base64Date6*)tmp;
dbuf[(i - 1) * 4 + 0] = ConvertToBase64((unsigned int)ddd->d1);
dbuf[(i - 1) * 4 + 1] = ConvertToBase64((unsigned int)ddd->d2);
dbuf[(i - 1) * 4 + 2] = ConvertToBase64((unsigned int)ddd->d3);
dbuf[(i - 1) * 4 + 3] = ConvertToBase64((unsigned int)ddd->d4);
}
if (len % 3 == 1)
{
tmp = buf + (i - 1) * 3;
cc = tmp[2];
tmp[2] = tmp[0];
tmp[0] = cc;
ddd = (struct Base64Date6*)tmp;
dbuf[(i - 1) * 4 + 0] = ConvertToBase64((unsigned int)ddd->d1);
dbuf[(i - 1) * 4 + 1] = ConvertToBase64((unsigned int)ddd->d2);
dbuf[(i - 1) * 4 + 2] = '=';
dbuf[(i - 1) * 4 + 3] = '=';
}
if (len % 3 == 2)
{
tmp = buf + (i - 1) * 3;
cc = tmp[2];
tmp[2] = tmp[0];
tmp[0] = cc;
ddd = (struct Base64Date6*)tmp;
dbuf[(i - 1) * 4 + 0] = ConvertToBase64((unsigned int)ddd->d1);
dbuf[(i - 1) * 4 + 1] = ConvertToBase64((unsigned int)ddd->d2);
dbuf[(i - 1) * 4 + 2] = ConvertToBase64((unsigned int)ddd->d3);
dbuf[(i - 1) * 4 + 3] = '=';
}
Return;
}
void the SendMail (char * In Email, char * body)
{
int sockfd = {0};
char buf [1500] = {0};
char rbuf [1500] = {0};
char Login [128] = { } 0;
char Pass [128] = {0};
WSADATA WSADATA;
SOCKADDR_IN their_addr ;;
WSAStartup (MAKEWORD (2, 2), & WSADATA);
Memset (& their_addr, 0, the sizeof (their_addr));
their_addr.sin_family = AF_INET;
= the htons their_addr.sin_port (25);
the hostent * = hptr the gethostbyname ( "smtp.163.com"); // with the server 163
memcpy (& hptr- h_addr_list their_addr.sin_addr.S_un.S_addr,> [0], hptr -> h_length);
// connect to the mail server, if the connection does not respond, then after 2 seconds reconnect
sockfd = OpenSocket((struct sockaddr *)&their_addr);
memset(rbuf, 0, 1500);
while (recv(sockfd, rbuf, 1500, 0) == 0)
{
sockfd = OpenSocket((struct sockaddr *)&their_addr);
memset(rbuf, 0, 1500);
}
// EHLO
memset(buf, 0, 1500);
//buf[]="EHLO HYL-PC\r\n";
sprintf_s(buf, "EHLO HYL-PC\r\n");
send(sockfd, buf, strlen(buf), 0);
memset(rbuf, 0, 1500);
recv(sockfd, rbuf, 1500, 0);
cout << "EHLO REceive: " << rbuf << endl;
// AUTH LOGIN
memset(buf, 0, 1500);
sprintf_s(buf, "AUTH LOGIN\r\n");
send(sockfd, buf, strlen(buf), 0);
memset(rbuf, 0, 1500);
recv(sockfd, rbuf, 1500, 0);
cout << "Auth Login Receive: " << rbuf << endl;
// USER
memset(buf, 0, 1500);
sprintf_s(buf, "[email protected]");
memset(login, 0, 128);
EncodeBase64(login, buf, strlen(buf));
sprintf_s(buf, "%s\r\n", login);
send(sockfd, buf, strlen(buf), 0);
cout << "Base64 UserName: " << buf << endl;
memset(rbuf, 0, 1500);
recv(sockfd, rbuf, 1500, 0);
cout << "User Login Receive: " << rbuf << endl;
// PASSWORD
sprintf_s(buf, "swfrezee");// your mailbox password
EncodeBase64 (Pass, buf, strlen (buf));
memset (Pass, 0, 128);
sprintf_s(buf, "%s\r\n", pass);
send(sockfd, buf, strlen(buf), 0);
cout << "Base64 Password: " << buf << endl;
memset(rbuf, 0, 1500);
recv(sockfd, rbuf, 1500, 0);
cout << "Send Password Receive: " << rbuf << endl;
// MAIL FROM
memset(buf, 0, 1500);
sprintf_s(buf, "MAIL FROM: <[email protected]>\r\n");
send(sockfd, buf, strlen(buf), 0);
memset(rbuf, 0, 1500);
recv(sockfd, rbuf, 1500, 0);
cout << "set Mail From Receive: " << rbuf << endl;
// RCPT TO 第一个收件人
sprintf_s(buf, "RCPT TO:<%s>\r\n", email);
send(sockfd, buf, strlen(buf), 0);
memset(rbuf, 0, 1500);
recv(sockfd, rbuf, 1500, 0);
cout << "Tell Sendto Receive: " << rbuf << endl;
// DATA 准备开始发送邮件内容
sprintf_s(buf, "DATA\r\n");
send(sockfd, buf, strlen(buf), 0);
memset(rbuf, 0, 1500);
recv(sockfd, rbuf, 1500, 0);
cout << "Send Mail Prepare Receive: " << rbuf << endl;
// 发送邮件内容，\r\n.\r\n内容结束标记
sprintf_s(buf, "%s\r\n.\r\n", body);
send(sockfd, buf, strlen(buf), 0);
memset(rbuf, 0, 1500);
recv(sockfd, rbuf, 1500, 0);
cout << "Send Mail Receive: " << rbuf << endl;
// QUIT
sprintf_s(buf, "QUIT\r\n");
send(sockfd, buf, strlen(buf), 0);
memset(rbuf, 0, 1500);
recv(sockfd, rbuf, 1500, 0);
cout << "Quit Receive: " << rbuf << endl;
//清理工作
closesocket(sockfd);
WSACleanup();
return;
}
// 打开TCP Socket连接
int OpenSocket(struct sockaddr *addr)
{
int sockfd = 0;
sockfd = socket(PF_INET, SOCK_STREAM, 0);
if (sockfd < 0)
{
cout << "Open sockfd(TCP) error!" << endl;
exit(-1);
}
if (connect(sockfd, addr, sizeof(struct sockaddr)) < 0)
{
cout << "Connect sockfd(TCP) error!" << endl;
exit(-1);
}
return sockfd;
}
int main(int argc, char **argv)
{
char EmailTo[] = "[email protected]";//发给的邮箱
char EmailContents[1000] = "From: \"A\"<[email protected]>\r\n" "To: \"B\"<[email protected]>\r\n" "Subject: Jason!\r\n\r\n" "come from China!";
SendMail(EmailTo, EmailContents);
getchar();
}