Help using unix socket for daemon

I found this small daemon program that listens on a port. I want to write something that emulates a smtp daemon. I learned some things from the code in the small daemon, and wrote one for my purposes. The problem is, that it will not run. It will compile, and "./infection" will work, but it will not start as a process nor listen on a port as I need it to do. I edited it and put a loop in maybe thinking it would help it run (maybe not =P), well, not it just fork bombs me.

Here is the code, maybe you can help me figure out what i'm doing wrong:

Code:

/* Infection, Fake SMTP Daemon- By Tal0n 01-05-04 */

/* Include the headers and etc that we need. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <signal.h>

/* Define port we are using. */
#define PORT 25

/* Define the message we want displayed. */
#define MSG "220 localhost ESMTP Sendmail 8.11.3/8.11.3; Mon, 5 Jan 2004 13:56:31 -0800"

/* Begin Program */
int main(int argc, char *argv[]);
int main(int argc, char *argv[])
{

/* Defining what the process's name will be. */
strcpy(argv[0], "fake-smtpd");
signal(SIGCHLD, SIG_IGN);

/* Declare sockets and such. */
int sockfd, newfd, size;
struct sockaddr_in local;
struct sockaddr_in remote;

/* Zero the rest of the struct. */
bzero(&local, sizeof(local));

/* Get sockets ready to use. */
local.sin_family = AF_INET;
local.sin_port = (PORT);
local.sin_addr.s_addr = INADDR_ANY;

/* Zero the rest of the struct. */
bzero(&(local.sin_zero), 8);

/* Defining 'size' as the sizeof the socket. */
size = sizeof(struct sockaddr_in);

while(1) {

/* Send the message if a connection is made. */
if(!fork()) {
send(newfd, MSG, sizeof(MSG), 0);

/* Close Sockets. */
close(newfd); } }

/* End Program. */
return 0;
}

/* EOF */

All help would be much appreciated.

Thank you,

-Tal0n

>> int main(int argc, char *argv[]);
>> int main(int argc, char *argv[])

I think, you don't need prototype for main().
And your syntax for prototype is wrong.
int func(int, char **);

>> signal(SIGCHLD, SIG_IGN);

I'm not sure this is the right way.
You should catch SIGCHLD and call wait() from signal handler to avoid a zombie.
[edit] AFAIK only System V and Unix 98 that signal(SIGCHLD,SIG_IGN) does not generate zombie.

>> local.sin_port = (PORT);
replaced with local.sin_port=htons(PORT);

>> local.sin_addr.s_addr = INADDR_ANY;
replaced with local.sin_addr.s_addr=htonl(INADDR_ANY)

Your code doesn't generate a daemon, parent must fork() a child then parent terminated, leaving the child running.

And it seems calls to socket(), bind() and listen() are missing.
Consult your man pages.