net.h

Go to the documentation of this file.

#include "bool.h"
#ifndef WIN32
#include <errno.h>
#endif

#define PORT_SRV     26000

#define PORT_STSYNC  26001

#define PORT_CLI     26002

#define PORT_CTSYNC  26003

#ifdef WIN32
#define CloseSocket(s)  if (s != -1) { closesocket(s); s = -1; }
#else
#define CloseSocket(s)  if (s != -1) { close(s); s = -1; }
#endif

#define MSG_WRITE_8(ptr, val)   *((ptr)++) = (val)

#define MSG_WRITE_8C(ptr, index, val)   (ptr)[index] = (val)

#define MSG_WRITE_16(ptr, val)  *((ptr)++) = ((val) >> 8); \
                                *((ptr)++) = ((val) & 0xFF)

#define MSG_WRITE_16C(ptr, index, val)   (ptr)[index] = ((val) >> 8);\
                                         (ptr)[index + 1] = ((val) & 0xFF)

#define MSG_WRITE_32(ptr, val)  *((ptr)++) = ((val) >> 24); \
                                *((ptr)++) = ((val) >> 16) & 0xFF; \
                                *((ptr)++) = ((val) >> 8)  & 0xFF; \
                                *((ptr)++) = ((val) & 0xFF)

#define MSG_WRITE_32C(ptr, index, val)  (ptr)[index] = ((val) >> 24); \
                                    (ptr)[index + 1] = ((val) >> 16) & 0xFF; \
                                    (ptr)[index + 2] = ((val) >> 8) & 0xFF; \
                                    (ptr)[index + 3] = ((val) & 0xFF)

#define MSG_READ_8(ptr, val)   (val) = *((ptr)++)

#define MSG_READ_16(ptr, val)  (val) =  (Uint8)*((ptr)++) << 8; \
                               (val) |= (Uint8)*((ptr)++)

#define MSG_READ_16C(ptr, index, val) (val) =  ((Uint8*)(ptr))[index] << 8; \
                                      (val) |= ((Uint8*)(ptr))[index + 1]

#define MSG_READ_32(ptr, val)  (val) =  (Uint8)*((ptr)++) << 24; \
                               (val) |= (Uint8)*((ptr)++) << 16; \
                               (val) |= (Uint8)*((ptr)++) << 8; \
                               (val) |= (Uint8)*((ptr)++)

#define MSG_READ_32C(ptr, index, val) \
        (val) =  ((Uint8*)(ptr))[index] << 24; \
        (val) |= ((Uint8*)(ptr))[index + 1] << 16; \
        (val) |= ((Uint8*)(ptr))[index + 2] << 8; \
        (val) |= ((Uint8*)(ptr))[index + 3]

enum {
    NETSTATE_INIT,
    NETSTATE_SEARCHING,
    NETSTATE_CONNECTING,
    NETSTATE_RCVCFG,
    NETSTATE_CLIENT,
    NETSTATE_CLIDISCONN,
    NETSTATE_SERVER,
    NETSTATE_SRVDISCONN,
    NETSTATE_SRVDENY,
    NETSTATE_DISCONN,
    NETSTATE_SEARCHERR,
    NETSTATE_SRVERR,
    NETSTATE_CONERR
};

extern unsigned int networkState;

Bool NetInit(char *srv);

Bool NetInitSrv();

void NetUninit();

void NetDisconnect();

Bool NetCliToSrv();

Bool NetSrvToCli();

int UnicastSocket(void *addr, Bool block);

// Make error handing more consistent across Unix-like systems and Windows

#ifdef WIN32
#define GetNetErrorVal()  WSAGetLastError()
#define EWOULDBLOCK  WSAEWOULDBLOCK
#define EBADF        WSAEBADF
#define EFAULT       WSAEFAULT
#define EINTR        WSAEINTR
#define EINVAL       WSAEINVAL
#define ENOTSOCK     WSAENOTSOCK
#define EADDRINUSE   WSAEADDRINUSE
#define ENETDOWN     WSAENETDOWN
#define ENETUNREACH  WSAENETUNREACH
#define ECONNRESET   WSAECONNREFUSED
#define ECONNREFUSED WSAECONNRESET 
#define EHOSTUNREACH WSAEHOSTUNREACH
#else
#define GetNetErrorVal()  errno
#endif

extern int netError;

const rtsa_char *GetNetErrorString(int err);

---