186 lines
5.8 KiB
C++
186 lines
5.8 KiB
C++
#ifndef CNETWORK_H
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#define CNETWORK_H
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#include "BasicTypes.h"
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#if WINDOWS_LIKE
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// declare no functions in winsock2
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# define INCL_WINSOCK_API_PROTOTYPES 0
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# define INCL_WINSOCK_API_TYPEDEFS 0
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# include <winsock2.h>
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typedef int ssize_t;
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# if !defined(SOL_TCP)
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# define SOL_TCP IPPROTO_TCP
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# endif
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#else
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# undef FAR
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# undef PASCAL
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# define FAR
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# define PASCAL
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#endif
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#if UNIX_LIKE
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# include <sys/types.h>
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# include <sys/poll.h>
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# include <sys/socket.h>
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# include <netdb.h>
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# include <netinet/in.h>
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# include <errno.h>
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# if !defined(TCP_NODELAY) || !defined(SOL_TCP)
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# include <netinet/tcp.h>
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# endif
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#endif
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//! Networking functions
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class CNetwork {
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public:
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// platform dependent types
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#if WINDOWS_LIKE
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typedef SOCKET Socket;
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typedef struct sockaddr Address;
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typedef int AddressLength;
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typedef BOOL TCPNoDelayType;
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class PollEntry {
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public:
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Socket fd;
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short events;
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short revents;
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};
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enum {
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kPOLLIN = 1,
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kPOLLOUT = 2,
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kPOLLERR = 4,
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kPOLLNVAL = 8
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};
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#elif UNIX_LIKE
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typedef int Socket;
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typedef struct sockaddr Address;
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typedef socklen_t AddressLength;
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typedef struct pollfd PollEntry;
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typedef int TCPNoDelayType;
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enum {
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kPOLLIN = POLLIN,
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kPOLLOUT = POLLOUT,
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kPOLLERR = POLLERR,
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kPOLLNVAL = POLLNVAL
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};
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#endif
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//! @name manipulators
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//@{
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//! Initialize network subsystem
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/*!
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This \b must be called before any other calls to the network subsystem.
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*/
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static void init();
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//! Clean up network subsystem
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/*!
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This should be called when the network subsystem is no longer needed
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and no longer in use.
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*/
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static void cleanup();
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// byte swapping functions
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//! Swap bytes to network order
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static UInt32 swaphtonl(UInt32 hostlong);
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//! Swap bytes to network order
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static UInt16 swaphtons(UInt16 hostshort);
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//! Swap bytes to host order
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static UInt32 swapntohl(UInt32 netlong);
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//! Swap bytes to host order
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static UInt16 swapntohs(UInt16 netshort);
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//@}
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//! @name constants
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//@{
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//! The error type
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static const int Error;
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//! The non-socket
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static const Socket Null;
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// getsockerror() constants
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enum {
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#if WINDOWS_LIKE
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kEADDRINUSE = WSAEADDRINUSE,
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kECONNECTING = WSAEWOULDBLOCK,
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#elif UNIX_LIKE
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kEADDRINUSE = EADDRINUSE,
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kECONNECTING = EINPROGRESS,
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#endif
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kNone = 0
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};
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// gethosterror() constants
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enum {
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#if WINDOWS_LIKE
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kHOST_NOT_FOUND = WSAHOST_NOT_FOUND,
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kNO_DATA = WSANO_DATA,
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kNO_RECOVERY = WSANO_RECOVERY,
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kTRY_AGAIN = WSATRY_AGAIN,
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#elif UNIX_LIKE
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kHOST_NOT_FOUND = HOST_NOT_FOUND,
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kNO_DATA = NO_DATA,
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kNO_RECOVERY = NO_RECOVERY,
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kTRY_AGAIN = TRY_AGAIN,
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#endif
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kHNone = 0
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};
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//@}
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// socket interface (only available after init())
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static Socket (PASCAL FAR *accept)(Socket s, Address FAR *addr, AddressLength FAR *addrlen);
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static int (PASCAL FAR *bind)(Socket s, const Address FAR *addr, AddressLength namelen);
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static int (PASCAL FAR *close)(Socket s);
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static int (PASCAL FAR *connect)(Socket s, const Address FAR *name, AddressLength namelen);
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static int (PASCAL FAR *ioctl)(Socket s, int cmd, void FAR *);
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static int (PASCAL FAR *getpeername)(Socket s, Address FAR *name, AddressLength FAR * namelen);
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static int (PASCAL FAR *getsockname)(Socket s, Address FAR *name, AddressLength FAR * namelen);
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static int (PASCAL FAR *getsockopt)(Socket s, int level, int optname, void FAR * optval, AddressLength FAR *optlen);
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static unsigned long (PASCAL FAR *inet_addr)(const char FAR * cp);
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static char FAR * (PASCAL FAR *inet_ntoa)(struct in_addr in);
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static int (PASCAL FAR *listen)(Socket s, int backlog);
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static ssize_t (PASCAL FAR *read)(Socket s, void FAR * buf, size_t len);
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static ssize_t (PASCAL FAR *recv)(Socket s, void FAR * buf, size_t len, int flags);
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static ssize_t (PASCAL FAR *recvfrom)(Socket s, void FAR * buf, size_t len, int flags, Address FAR *from, AddressLength FAR * fromlen);
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static int (PASCAL FAR *poll)(PollEntry[], int nfds, int timeout);
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static ssize_t (PASCAL FAR *send)(Socket s, const void FAR * buf, size_t len, int flags);
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static ssize_t (PASCAL FAR *sendto)(Socket s, const void FAR * buf, size_t len, int flags, const Address FAR *to, AddressLength tolen);
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static int (PASCAL FAR *setsockopt)(Socket s, int level, int optname, const void FAR * optval, AddressLength optlen);
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static int (PASCAL FAR *shutdown)(Socket s, int how);
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static Socket (PASCAL FAR *socket)(int af, int type, int protocol);
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static ssize_t (PASCAL FAR *write)(Socket s, const void FAR * buf, size_t len);
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static struct hostent FAR * (PASCAL FAR *gethostbyaddr)(const char FAR * addr, int len, int type);
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static struct hostent FAR * (PASCAL FAR *gethostbyname)(const char FAR * name);
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static int (PASCAL FAR *gethostname)(char FAR * name, int namelen);
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static struct servent FAR * (PASCAL FAR *getservbyport)(int port, const char FAR * proto);
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static struct servent FAR * (PASCAL FAR *getservbyname)(const char FAR * name, const char FAR * proto);
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static struct protoent FAR * (PASCAL FAR *getprotobynumber)(int proto);
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static struct protoent FAR * (PASCAL FAR *getprotobyname)(const char FAR * name);
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static int (PASCAL FAR *getsockerror)(void);
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static int (PASCAL FAR *gethosterror)(void);
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// convenience functions (only available after init())
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//! Set socket to (non-)blocking operation
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static int (PASCAL FAR *setblocking)(CNetwork::Socket s, bool blocking);
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#if WINDOWS_LIKE
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private:
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static void init2(HMODULE);
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static int PASCAL FAR poll2(PollEntry[], int nfds, int timeout);
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static ssize_t PASCAL FAR read2(Socket s, void FAR * buf, size_t len);
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static ssize_t PASCAL FAR write2(Socket s, const void FAR * buf, size_t len);
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static int PASCAL FAR setblocking2(CNetwork::Socket s, bool blocking);
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static int (PASCAL FAR *WSACleanup)(void);
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static int (PASCAL FAR *__WSAFDIsSet)(CNetwork::Socket, fd_set FAR *);
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static int (PASCAL FAR *select)(int nfds, fd_set FAR *readfds, fd_set FAR *writefds, fd_set FAR *exceptfds, const struct timeval FAR *timeout);
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#endif
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};
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#endif
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