#ifndef _GNU_SOCK_SMTP_H#define _GNU_SOCK_SMTP_H #include <string.h>#include <stdlib.h>#include <stdio.h>#include <stdarg.h>#ifdef WIN32	#include <winerror.h>	#include <wininet.h>	#include <winsock.h>	#include <stdint.h>	#include <ws2tcpip.h>	#define  close   closesocket	#define sockstart(name)  \		WSADATA name;  \		if (WSAStartup(MAKEWORD(1,1) ,&name)){   \			perror("sockstart") ;  \		}	#define sockend()  WSACleanup()#else	#include <unistd.h>	#include <sys/socket.h>	#include <sys/types.h>	#include <arpa/inet.h>	#include <netinet/in.h>	#include <netdb.h>	#define sockstart(name)	#define sockend()#endif/* Write By: Gan Jian Hui * Date :2006-06-10 **/#define m_strcpy(dest,src)  _m_strcpy(&dest,src)/* The MailHeader*/typedef struct {	char *mailFrom ;	char *mailTo ;	char *ccTo ;	char *mailHost ;	char *userName ;	char *passWord ;} MailHeader,*pMailHeader ;#define INIT_MAILHEADER(header) \	header = malloc(sizeof(MailHeader)) ;\	memset(header,0,sizeof(MailHeader)) #define FREE_MAILHEADER(header) \	free(header -> mailFrom); \	free(header -> mailTo); \	free(header -> ccTo); \	free(header -> mailHost) ; \	free(header->userName) ; \	free(header->passWord) ; \	free(header) /* The Mail Information  */typedef struct {	MailHeader *header ;	char *subject;	char *contentType; 	char *mailBody ;	char *charSet ;} Mail,*pMail ;#define INIT_MAIL(mail) \	mail = malloc(sizeof(Mail)) ;\	memset(mail,0,sizeof(Mail));\	INIT_MAILHEADER(mail->header) 	#define FREE_MAIL(mail) \	free(mail -> subject) ; \	free(mail -> contentType) ; \	free(mail -> mailBody) ; \	free(mail -> charSet) ; \	if ( mail->header) { FREE_MAILHEADER(mail-> header);} \	free(mail) /*encoding base64*/                      int Base64Enc(char *buf,char *text) ;int Base64Dec(char *buf,char*text,int size) ;	int DecodeQuoted(const char* pSrc, unsigned char* pDst, int nSrcLen) ;int EncodeQuoted(const unsigned char* pSrc, char* pDst, int nSrcLen, int nMaxLineLen,int action) ;char* EncodeQuotednew(const unsigned char* pSrc, int nSrcLen, int nMaxLineLen) ;	int hostsend(int sock, char *format, ...) ; int hostconnect(const  char *hostname,  uint16_t   port) ;int sendsmtpmail(int sockfd, Mail *mail) ;void die(const char *fmt, ...) ;#endif