#include
#include
#include
#include
#pragma?comment（lib“ws2_32.lib“）
using?namespace?std;


struct?base64Date6
{
	unsigned?int?d4:6;
	unsigned?int?d3:6;
	unsigned?int?d2:6;
	unsigned?int?d1:6;
};
//?協(xié)議中加密部分使用的是base64方法
char?ConvertTobase64（char?c6）;
void?Encodebase64（char*dbufchar*buf128int?len）;
void?SendMail（char*emailchar*body）;
int?OpenSocket（struct?sockaddr?*addr）;


char?ConvertTobase64（char?uc）
{
	if（uc?<26）
	{
		return‘A‘+uc;
	}
	if（uc?<52）
	{
		return‘a(chǎn)‘+（uc?-26）;
	}
	if（uc?<62）
	{
		return‘0‘+（uc?-52）;
	}
	if（uc?==62）
	{
		return‘+‘;
	}
	return‘/‘;
}

//?base64的實(shí)現(xiàn)
void?Encodebase64（char*?dbufchar*?buf128int?len）
{
	struct?base64Date6*?ddd?=NULL;
	int?i?=0;
	char?buf[256]={0};
	char*?tmp?=NULL;
	char?cc?=‘\0‘;

	memset（buf0256）;
	strcpy_s（buf256buf128）;
	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;
}
//?發(fā)送郵件
void?SendMail（char*?emailchar*?bodychar?*source）
{
	int?sockfd?={0};
	char?buf[1500]={0};
	char?rbuf[1500]={0};
	char?login[128]={0};
	char?pass[128]={0};
	WSADATA?WSAData;
	struct?sockaddr_in?their_addr?={0};
	WSAStartup（MAKEWORD（22）&WSAData）;
	memset（&their_addr0sizeof（their_addr））;

	their_addr.sin_family?=AF_INET;
	their_addr.sin_port?=htons（25）;
	hostent*hptr?=gethostbyname（“smtp.sina.com“）;
	memcpy（&their_addr.sin_addr.S_un.S_addrhptr->h_addr_list[0]hptr->h_length）;
	printf（“IP?of?smpt.smtp.com?is?:?%d:%d:%d:%d\n“
	their_addr.sin_addr.S_un.S_un_b.s_b1
	their_addr.sin_addr.S_un.S_un_b.s_b2
	their_addr.sin_addr.S_un.S_un_b.s_b3
	their_addr.sin_addr.S_un.S_un_b.s_b4）;

	//?連接郵件服務(wù)器，如果連接后沒有響應(yīng)，則2?秒后重新連接
	sockfd?=OpenSocket（（struct?sockaddr?*）&their_addr）;
	memset（rbuf01500）;
	while（recv（sockfdrbuf15000）==0）
	{
		cout<<“reconnect...“<		Sleep（2）;
		sockfd?=OpenSocket（（struct?sockaddr?*）&their_addr）;
		memset（rbuf01500）;
	}

	cout<
	//?EHLO
	memset（buf01500）;
	sprintf_s（buf1500“EHLO?HYL-PC\r\n“）;
	send（sockfdbufs

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件??????11197??2013-11-11?10:49??SMTP郵件發(fā)送客戶端\SMTP郵件發(fā)送.cpp

?????文件????????139??2013-11-11?10:52??SMTP郵件發(fā)送客戶端\說明.txt

?????目錄??????????0??2013-11-11?10:50??SMTP郵件發(fā)送客戶端

-----------?---------??----------?-----??----

????????????????11336????????????????????3