Changing program from AF_UNIX to AF_INET

Slaanesh

Hey,

I am trying to change a C program from AF_UNIX to AF_INET, unfortunately I am not a C programmer and don't know how to go about this.

I understand the basics and have examples of INET server based programs.

Here is the main section of code that I think needs to be changed, any help/pointers would be appreciated.

int main(int argc, char *argv[], char *envp[])
{
	struct sched_param sched;
	struct sockaddr_un sun;
	struct passwd *pwd;
	struct passwd user;
	const char *eqname;
	const char *dname;
	int out, flg, rtm;
	char *ptr;
	pid_t pid;

	proc_title_init(argv, envp);

	strncpy(sun.sun_path, DEF_SOCKET, sizeof(sun.sun_path));

	dname = DEF_DEVICE;
	user.pw_name = NULL;
	eqname = NULL;
	channels = 2;
	opterr = 0;
	rtm = 0;

	//// Ommitted Code Here

	/* ensure socket path is 0 terminated */

	sun.sun_path[sizeof(sun.sun_path) - 1] = '\0';

        // Ommitted code here too

	close(1);
	dup(out);
	close(out);

        // More code ommitted
	/* drop privileges */

	if(socket(PF_UNIX, SOCK_DGRAM, 0) != 0) {

		dprintf(2, "failed to allocate socket, %s\n", strerror(errno));
		return 1;
	}

	if((flg = fcntl(0, F_GETFL)) == -1 || fcntl(0, F_SETFL, flg | O_NONBLOCK)) {

		dprintf(2, "failed to set socket for non-blocking, %s\n", strerror(errno));
		return 1;
	}

	sun.sun_family = AF_UNIX;

	umask(077);

	if(bind(0, &sun, SUN_LEN(&sun))) {

		dprintf(2, "failed to bind socket %s, %s\n", sun.sun_path, strerror(errno));
		return 1;
	}

	/* ensure SIGTERM handler can unlink socket */

	sname = sun.sun_path;

	switch(pid = fork()) {

		case -1:
			dprintf(2, "failed to fork child, %s\n", strerror(errno));
			break;

		case 0:
			setsid();

			openlog(APP_NAME "(decoder)", LOG_PID, LOG_LOCAL0);

			signal(SIGTERM, sig_term);
			signal(SIGPIPE, SIG_IGN);

			proc_title_set(APP_NAME " <-");

			decoder();
			break;

		default:
			return 0;
	}

	unlink(sname);

	return 1;
}

Thanks,

Slaan.