agd-cvs

[Peep P. <so...@us...>]

Update of /cvsroot/agd/client
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv1475

Added Files:
	net.c 
Log Message:
Network functions.

--- NEW FILE: net.c ---
#include <stdlib.h>
#include <allegro.h>
#include "sys.h"
#include "net.h"
#include "gui.h"

extern int cursor_y;
extern gui_font_t *fonts;

int fd;
fd_set readfd;

void net_connect() {
	struct sockaddr_in sin;
	int ret;

#ifdef WIN32
	WSADATA wsaData;
	if(WSAStartup(MAKEWORD(1, 1), &wsaData)) {
		fprintf(stderr, "Can't initialize Winsock!\n");
		exit(1);
	}
#endif

	sin.sin_family = AF_INET;
	sin.sin_port = htons(conf.port);
	printf("port: %d\n", conf.port);

    if(conf.host[0] > '0' && conf.host[0] < '9') {
		/* This is an IP address. */
		if(!inet_aton(conf.host, &sin.sin_addr)) {
			printf("Invalid IP address '%s'.\n", conf.host);
			return;
		}
	} else {
		/* This is a hostname. */
		struct hostent *he;
		he = gethostbyname(conf.host);
		if(!he) {
			printf("Cannot look up %s.\n", conf.host);
			return;
		}
		sin.sin_addr = *(struct in_addr *)he->h_addr;
	}
	
	fd = socket(PF_INET, SOCK_STREAM, 0);
	if(fd < 0) {
		perror("Can't open socket");
		exit(1);
	}
	
	ret = connect(fd, (struct sockaddr *) &sin, sizeof sin);
	if(ret < 0) {
		perror("Can't connect");
		exit(1);
	}
}

void net_events() {
	struct timeval timeout = { 0, 0 };
	char buf[4096];
	int ret;
	
	FD_ZERO(&readfd);
	FD_SET(fd, &readfd);
	
	ret = select(fd + 1, &readfd, 0, 0, &timeout);
	if(ret <= 0) {
		if(ret < 0 )
			perror("select");
		return;
	}
	
	if(FD_ISSET(fd, &readfd)) {
		ret = recv(fd, buf, 4096, 0);
		switch(ret) {
			case -1:
				printf("Error reading from server\n");
				/* fallthrough */
			case 0:
				printf("Disconnected from server.\n");
				break;
			default:
/*				p = buf;
				while(strlen(p)) {*/
				gui_label(screen, 0, buf, 0, cursor_y, SCREEN_W, SCREEN_H);
				cursor_y += fonts[0].b->h;
				break;
		}
	}
}