text: // sys/socket.h
  
  // djl
  // Provide UNIX compatibility
  
  #ifndef  _INC_SYS_SOCKET
  #define  _INC_SYS_SOCKET
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #define WIN32_LEAN_AND_MEAN
  #ifdef __GNUC__
  #  define Win32_Winsock
  #endif
  #include <windows.h>
  #include <winsock.h>
  
  #include "win32.h"
  
  #define  ENOTSOCK	WSAENOTSOCK
  
  #ifdef USE_SOCKETS_AS_HANDLES
  
  #ifndef PERL_FD_SETSIZE
  #define PERL_FD_SETSIZE		64
  #endif
  
  #define PERL_BITS_PER_BYTE	8
  #define	PERL_NFDBITS		(sizeof(Perl_fd_mask)*PERL_BITS_PER_BYTE)
  
  typedef int			Perl_fd_mask;
  
  typedef struct	Perl_fd_set {
      Perl_fd_mask bits[(PERL_FD_SETSIZE+PERL_NFDBITS-1)/PERL_NFDBITS];
  }				Perl_fd_set;
  
  #define PERL_FD_CLR(n,p) \
      ((p)->bits[(n)/PERL_NFDBITS] &= ~((unsigned)1 << ((n)%PERL_NFDBITS)))
  
  #define PERL_FD_SET(n,p) \
      ((p)->bits[(n)/PERL_NFDBITS] |=  ((unsigned)1 << ((n)%PERL_NFDBITS)))
  
  #define PERL_FD_ZERO(p) memset((char *)(p),0,sizeof(*(p)))
  
  #define PERL_FD_ISSET(n,p) \
      ((p)->bits[(n)/PERL_NFDBITS] &   ((unsigned)1 << ((n)%PERL_NFDBITS)))
  
  #else	/* USE_SOCKETS_AS_HANDLES */
  
  #define Perl_fd_set	fd_set
  #define PERL_FD_SET(n,p)	FD_SET(n,p)
  #define PERL_FD_CLR(n,p)	FD_CLR(n,p)
  #define PERL_FD_ISSET(n,p)	FD_ISSET(n,p)
  #define PERL_FD_ZERO(p)		FD_ZERO(p)
  
  #endif	/* USE_SOCKETS_AS_HANDLES */
  
  SOCKET win32_accept (SOCKET s, struct sockaddr *addr, int *addrlen);
  int win32_bind (SOCKET s, const struct sockaddr *addr, int namelen);
  int win32_closesocket (SOCKET s);
  int win32_connect (SOCKET s, const struct sockaddr *name, int namelen);
  int win32_ioctlsocket (SOCKET s, long cmd, u_long *argp);
  int win32_getpeername (SOCKET s, struct sockaddr *name, int * namelen);
  int win32_getsockname (SOCKET s, struct sockaddr *name, int * namelen);
  int win32_getsockopt (SOCKET s, int level, int optname, char * optval, int *optlen);
  u_long win32_htonl (u_long hostlong);
  u_short win32_htons (u_short hostshort);
  unsigned long win32_inet_addr (const char * cp);
  char * win32_inet_ntoa (struct in_addr in);
  int win32_listen (SOCKET s, int backlog);
  u_long win32_ntohl (u_long netlong);
  u_short win32_ntohs (u_short netshort);
  int win32_recv (SOCKET s, char * buf, int len, int flags);
  int win32_recvfrom (SOCKET s, char * buf, int len, int flags,
                           struct sockaddr *from, int * fromlen);
  int win32_select (int nfds, Perl_fd_set *rfds, Perl_fd_set *wfds, Perl_fd_set *xfds,
  		  const struct timeval *timeout);
  int win32_send (SOCKET s, const char * buf, int len, int flags);
  int win32_sendto (SOCKET s, const char * buf, int len, int flags,
                         const struct sockaddr *to, int tolen);
  int win32_setsockopt (SOCKET s, int level, int optname,
                             const char * optval, int optlen);
  SOCKET win32_socket (int af, int type, int protocol);
  int win32_shutdown (SOCKET s, int how);
  
  /* Database function prototypes */
  
  struct hostent * win32_gethostbyaddr(const char * addr, int len, int type);
  struct hostent * win32_gethostbyname(const char * name);
  int win32_gethostname (char * name, int namelen);
  struct servent * win32_getservbyport(int port, const char * proto);
  struct servent * win32_getservbyname(const char * name, const char * proto);
  struct protoent * win32_getprotobynumber(int proto);
  struct protoent * win32_getprotobyname(const char * name);
  struct protoent *win32_getprotoent(void);
  struct servent *win32_getservent(void);
  void win32_sethostent(int stayopen);
  void win32_setnetent(int stayopen);
  struct netent * win32_getnetent(void);
  struct netent * win32_getnetbyname(char *name);
  struct netent * win32_getnetbyaddr(long net, int type);
  void win32_setprotoent(int stayopen);
  void win32_setservent(int stayopen);
  void win32_endhostent(void);
  void win32_endnetent(void);
  void win32_endprotoent(void);
  void win32_endservent(void);
  
  #ifndef WIN32SCK_IS_STDSCK
  //
  // direct to our version
  //
  #define htonl		win32_htonl
  #define htons		win32_htons
  #define ntohl		win32_ntohl
  #define ntohs		win32_ntohs
  #define inet_addr	win32_inet_addr
  #define inet_ntoa	win32_inet_ntoa
  
  #define socket		win32_socket
  #define bind		win32_bind
  #define listen		win32_listen
  #define accept		win32_accept
  #define connect		win32_connect
  #define send		win32_send
  #define sendto		win32_sendto
  #define recv		win32_recv
  #define recvfrom	win32_recvfrom
  #define shutdown	win32_shutdown
  #define closesocket	win32_closesocket
  #define ioctlsocket	win32_ioctlsocket
  #define setsockopt	win32_setsockopt
  #define getsockopt	win32_getsockopt
  #define getpeername	win32_getpeername
  #define getsockname	win32_getsockname
  #define gethostname	win32_gethostname
  #define gethostbyname	win32_gethostbyname
  #define gethostbyaddr	win32_gethostbyaddr
  #define getprotobyname	win32_getprotobyname
  #define getprotobynumber win32_getprotobynumber
  #define getservbyname	win32_getservbyname
  #define getservbyport	win32_getservbyport
  #define select		win32_select
  #define endhostent	win32_endhostent
  #define endnetent	win32_endnetent
  #define endprotoent	win32_endprotoent
  #define endservent	win32_endservent
  #define getnetent	win32_getnetent
  #define getnetbyname	win32_getnetbyname
  #define getnetbyaddr	win32_getnetbyaddr
  #define getprotoent	win32_getprotoent
  #define getservent	win32_getservent
  #define sethostent	win32_sethostent
  #define setnetent	win32_setnetent
  #define setprotoent	win32_setprotoent
  #define setservent	win32_setservent
  
  #ifdef USE_SOCKETS_AS_HANDLES
  #undef fd_set
  #undef FD_SET
  #undef FD_CLR
  #undef FD_ISSET
  #undef FD_ZERO
  #define fd_set		Perl_fd_set
  #define FD_SET(n,p)	PERL_FD_SET(n,p)
  #define FD_CLR(n,p)	PERL_FD_CLR(n,p)
  #define FD_ISSET(n,p)	PERL_FD_ISSET(n,p)
  #define FD_ZERO(p)	PERL_FD_ZERO(p)
  #endif	/* USE_SOCKETS_AS_HANDLES */
  
  #endif	/* WIN32SCK_IS_STDSCK */
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif	// _INC_SYS_SOCKET
  