Par2: SMTP Email with Messaging templates 2009-12-08 -- Ron Schofield The code for the messaging templates is bad. Too bad SV didn't clean
the code up to make it work. I ran through the same problems until I
rewote the code just to do SMTP. All I did was use code from codeproject
and converted it to Clarion.
http://beta.codeproject.com/KB/IP/zsmtp.aspx
SOCKET CFastSmtp::_connectServerSocket(const char server[],
const unsigned short port)
{
int nConnect;
short nProtocolPort;
LPHOSTENT lpHostEnt;
LPSERVENT lpServEnt;
SOCKADDR_IN sockAddr;
SOCKET hServerSocket = INVALID_SOCKET;
lpHostEnt = gethostbyname(server);
if (lpHostEnt) {
hServerSocket = socket(PF_INET, SOCK_STREAM,DEFAULT_PROTOCOL);
if (hServerSocket != INVALID_SOCKET) {
if (port != NULL) {
nProtocolPort = port;
}else{
lpServEnt = getservbyname("mail", DEFAULT_PROTOCOL);
if (lpServEnt == NULL)
nProtocolPort = htons(IPPORT_SMTP);
else
nProtocolPort = lpServEnt->s_port;
}
sockAddr.sin_family = AF_INET;
sockAddr.sin_port = nProtocolPort;
sockAddr.sin_addr = *((LPIN_ADDR)*lpHostEnt->h_addr_list);
nConnect = connect(hServerSocket, (PSOCKADDR)&sockAddr,
sizeof(sockAddr));
if(nConnect)
hServerSocket = INVALID_SOCKET;
} else {
printf("Invalid socket\r\n");
throw;
}
}
return(hServerSocket);
}
gets converted to
SMTPServerSocket PROCEDURE(*CSTRING ServerName, SHORT Port)
hServerSocket SOCKET
lpHostEnt LONG
HostEntry LIKE(HOSTENT)
lpServEnt LONG
ServiceEntry LIKE(SERVENT)
nProtocolPort SHORT
SockAddrIn LIKE(SOCKADDR_IN)
ServiceName CSTRING('mail')
nConnect LONG
lpAddrList LONG
CODE
hServerSocket = INVALID_SOCKET
lpHostEnt = GetHostByName(ServerName)
IF lpHostEnt
hServerSocket = CreateSocket(PF_INET,SOCK_STREAM,DEFAULT_PROTOCOL)
IF hServerSocket <> INVALID_SOCKET
IF Port <> 0
nProtocolPort = Htons(Port)
ELSE
lpServEnt = GetServByName(ServiceName,DEFAULT_PROTOCOL)
IF lpServEnt = 0
nProtocolPort = Htons(IPPORT_SMTP)
ELSE
memcpy(ADDRESS(ServiceEntry),lpServEnt,SIZE(ServiceEntry));
nProtocolPort = ServiceEntry.s_port
END
END
memcpy(ADDRESS(HostEntry),lpHostEnt,SIZE(HostEntry));
memcpy(ADDRESS(lpAddrList),HostEntry.h_addr_list,HostEntry.h_length)
SockAddrIn.sin_family = PF_INET
SockAddrIn.sin_port = nProtocolPort
SockAddrIn.sin_addr = SMTPData.SMTPIP
memcpy(ADDRESS(SockAddrIn.sin_addr),lpAddrList,HostEntry.h_length)
nConnect =
WinsockConnect(hServerSocket,ADDRESS(SockAddrIn),SIZE(SockAddrIn))
IF nConnect = SOCKET_ERROR
Alog.log('Connect returned ' & WSAGetLastError() & '
error.',LOG:Error)
hServerSocket = INVALID_SOCKET
END
ELSE
Alog.log('Invalid Socket',LOG:Error)
END
END
RETURN(hServerSocket)
Hopefully this will get you started. SMTP isn't a big bad boogy man when
you get the idea how it works.
Printed November 21, 2024, 6:40 am This article has been viewed/printed 35276 times. |