#ifndef KeefLibSockets_H
#define KeefLibSockets_H
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// libSockets.cpp/h : keef's sockets library
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~PA:keef~~

#include <stdio.h>        // for printf(), etc.
#include <fcntl.h>        // for open(), close(), etc.
#include <stdlib.h>       // for atoi()
#include <string.h>       // for bzero()
#include <sys/types.h>
#include <sys/filio.h>    // for FIONBIO
#include <errno.h>
//extern int errno;

#ifdef UNIX
  #include <netdb.h>        // for gethostbyaddr() and gethostbyname()
  #include <sys/uio.h>
  #include <unistd.h>       // for sleep()
  #include <sys/socket.h>   // for UCB socket support
  #include <netinet/in.h>   // for UCB socket support
  #include <arpa/inet.h>    // for UCB socket support

  enum {TRUE=1,FALSE=0};
  typedef unsigned long DWORD;

#else
  #include <wtypes.h>     // to satisfy winbase.h
  #include <winbase.h>    // for Sleep()
  #include <winsock.h>    // for windows equiv. of UCB sockets

  #define  WINSOCK_MAJVER  2
  #define  WINSOCK_MINVER  2
#endif

#ifndef BOOL
  typedef int BOOL;
#endif

#define pszACK			"OK"
#define cEOBATCH 		4 // control-D
enum { g_iNoConnectionYet = -4321 };
extern char pszEOBATCH[2];

#define MAXLEN_WEB_URL       2000
#define MAXLEN_WEB_HOSTNAME   200
#define MAXLEN_WEB_PROTOCOL    30

enum {
	WP_HTTP      = 80,
	WP_HTTPS     = 433,
	WP_FTP       = 21,
	WP_GOPHER    = 70,
	WP_NEWS      = 2009,
	WP_UNKNOWN   = 0
};

typedef struct
{
	char szWebFullURL[MAXLEN_WEB_URL+1];
	// - - - - - - - - - - - - - - - - - - - - -
	char szWebProtocol[MAXLEN_WEB_PROTOCOL+1];
	int  iWebProtocol;
	char szWebHostname[MAXLEN_WEB_HOSTNAME+1];
	char szWebRestURL[MAXLEN_WEB_URL+1];
	int  iPortNum;
}
WEBURL;

#if 0
  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  // this API should write to some application-specific error log and
  // possibly present a dialog to the user, if appropriate:
  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  void /*global*/ ErrorLog (char* pszFormat, ...);

  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  // this API should call IsDebugLog() and conditionally output to a log file:
  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  void /*global*/ DebugLog (char* pszFormat, ...);
#else
  #define	ErrorLog	printf
  #define	DebugLog	if (g_fDebug) printf
  extern    int g_fDebug;
#endif

// KEEF Macros:
#define InAddrB1(Unsigned32BitInt)	((int)(((Unsigned32BitInt) << 24) >> 24))
#define InAddrB2(Unsigned32BitInt)	((int)(((Unsigned32BitInt) << 16) >> 24))
#define InAddrB3(Unsigned32BitInt)	((int)(((Unsigned32BitInt) <<  8) >> 24))
#define InAddrB4(Unsigned32BitInt)	((int)(((Unsigned32BitInt)      ) >> 24))

// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// KEEF's Global Sockets API's for UNIX and Win32 (see notes in libsockets.cpp)
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
BOOL ParseWebURL (char* pszFullURL, WEBURL* pWebURL);
BOOL ValidateHost (struct sockaddr_in* pAddrServer, char* pszHostname, 
                   char* szCanonical=NULL, int iLenCanonical=0);
int  SocketOpenForListen (unsigned short iPortNum, BOOL fDebug=FALSE);
int  SocketWaitForNextConnection (int fdListen, int iMSecDelay=250, BOOL fDebug=FALSE);
int  SocketPeekForNextConnection (int fdListen, BOOL fDebug=FALSE);
int  SocketAcceptConnection (int fdListen, BOOL fDebug/*=FALSE*/);
BOOL SocketReadLine (int fdSocket, char* szLine, int iMaxBytes);
int  SocketRead (int fdSocket, char* pszBuffer, int iMaxBytes, int iMinBytes);
int  SendCommand (struct sockaddr_in* pAddrServer, char* pszHostname, char* pszCommand);
int  SocketWrite (int fdSocket, char* pszBuffer);
void TranslateErrno ();

#ifdef WIN32
  LPCTSTR BindToWinsockDLL ();
#endif
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

#ifdef sun4
  #ifdef	__cplusplus
    extern "C" {
  #endif
  // these API's are somehow missing from /usr/include/sys/socket.h on sun4!!!
  extern int accept(int, struct sockaddr *, int *);
  extern int bind(int, struct sockaddr *, int);
  extern int connect(int, struct sockaddr *, int);
  extern int getpeername(int, struct sockaddr *, int *);
  extern int getsockname(int, struct sockaddr *, int *);
  extern int getsockopt(int, int, int, char *, int *);
  extern int listen(int, int);
  extern int recv(int, char *, int, int);
  extern int recvfrom(int, char *, int, int, struct sockaddr *, int *);
  extern int send(int, const char *, int, int);
  extern int sendto(int, const char *, int, int, const struct sockaddr *, int);
  extern int setsockopt(int, int, int, const char *, int);
  extern int socket(int, int, int);
  extern int recvmsg(int, struct msghdr *, int);
  extern int sendmsg(int, const struct msghdr *, int);
  extern int shutdown(int, int);
  extern int socketpair(int, int, int, int *);
  #ifdef	__cplusplus
    }
  #endif
#endif

#endif // KeefLibSockets_H