--- /dev/null
+/* network.h -- network headers */
+
+#ifndef NETWORK_H
+#define NETWORK_H
+
+/* includes */
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+/* net specific includes */
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+/* defines */
+#define MAX_CONNECTIONS 32
+
+#define IP_DIGITS 16
+#define C_IN_USE (1<<0)
+#define C_INFO_A (1<<1)
+#define C_SOCKET (1<<2)
+#define C_ESTABL (1<<3)
+#define C_HANGUP (1<<4)
+
+#define CHAR_N_UNAME 32
+
+#define SEND_N_MAX 128
+#define SEND_N_NAME 'n'
+#define SEND_N_G_CAP 'g'
+#define SEND_N_AV_CAP 'c'
+
+#define N_SUCCESS 1
+#define N_ERROR -1
+
+#define MAX_LISTEN_QUEUE 32
+
+/* net specific variables */
+typedef struct s_connection {
+ int fd;
+ char name[CHAR_N_UNAME];
+ char ip[IP_DIGITS];
+ in_port_t port;
+ unsigned char status;
+ unsigned char cap; /* general capabilities */
+ unsigned short avcap; /* audio/video capabilities */
+} t_connection;
+
+typedef struct s_net {
+ int l_fd; /* listen file descriptor */
+ in_port_t l_port;
+ unsigned char cap;
+ unsigned short avcap;
+ /* limited connections by now -- replaced by list management later */
+ int c_count;
+ t_connection connection[MAX_CONNECTIONS];
+ unsigned int sendmask; /* 32 bits for maximum of 32 connections */
+} t_net;
+
+/* function prototypes */
+int network_init(t_net *net);
+int network_shutdown(t_net *net);
+int network_set_listen_port(t_net *net,in_port_t port);
+int network_manage_connection(t_net *net);
+int network_manage_incoming(t_net *net);
+int network_send(int fd,unsigned char *data,int datasize);
+int network_receive(int fd,unsigned char *data,int datasize);
+int send_info(int channel,t_net *net,char *name);
+int receive_info(int channel,t_net *net);
+
+#endif