cvs/os2/tcpip.h

13571821Stholo/****************************************************************
13571821Stholo *
13571821Stholo * TCPIP.H - Portable TCP/IP header file
13571821Stholo *
13571821Stholo * TCP/IP on OS/2 is an add-on and thus is not fully integrated
13571821Stholo * with the operating system. To ensure portability, follow
13571821Stholo * these rules:
13571821Stholo *
13571821Stholo *  * Always call SockInit() at the beginning of your program
13571821Stholo *    and check that it returns TRUE.
13571821Stholo *
13571821Stholo *  * Use SockSend() & SockRecv() instead of read(), write(),
13571821Stholo *    send(), or recv() when working with sockets.
13571821Stholo *
13571821Stholo *  * Use SockClose() instead of close() with sockets.
13571821Stholo *
13571821Stholo *  * Use SOCK_ERRNO when using functions that use or return
13571821Stholo *    sockets, such as SockSend() or accept().
13571821Stholo *
13571821Stholo *  * Use HOST_ERRNO when using gethostbyname() or gethostbyaddr()
13571821Stholo *    functions.
13571821Stholo *
13571821Stholo *  * As far as I can tell, getservbyname() and related functions
13571821Stholo *    never set any error variable.
13571821Stholo *
13571821Stholo *  * Use SockStrError() & HostStrError() to convert SOCK_ERRNO
13571821Stholo *    and HOST_ERRNO to error strings.
13571821Stholo *
13571821Stholo *  * In .MAK files, include $(TCPIP_MAK) & use $(TCPIPLIB)
13571821Stholo *    when linking applications using TCP/IP.
13571821Stholo *
13571821Stholo ****************************************************************/
13571821Stholo
13571821Stholo#if !defined( IN_TCPIP_H )
13571821Stholo#define IN_TCPIP_H
13571821Stholo
13571821Stholo#include	<sys/types.h>
13571821Stholo#include	<sys/stat.h>
13571821Stholo#include	<sys/socket.h>
13571821Stholo#include	<sys/ioctl.h>
13571821Stholo#include	<netinet/in.h>
13571821Stholo#include	<netdb.h>
13571821Stholo#include	<errno.h>
13571821Stholo
13571821Stholo#if defined( TCPIP_IBM )
*461cc63eStholo/* Here comes some ugly stuff: The watcom compiler and the IBM TCPIP
*461cc63eStholo * toolkit do not work together very well. The return codes for the
*461cc63eStholo * socket calls are not integrated into the usual error codes, there
*461cc63eStholo * are separate values instead. This results in a crash for two values.
*461cc63eStholo * Since these values are not needed for socket access as far as I can
*461cc63eStholo * see, I will save those values and redefine them after including
*461cc63eStholo * nerrno.h (types.h will include nerrno.h, so this is needed here).
*461cc63eStholo */
*461cc63eStholo#       ifdef __WATCOMC__
*461cc63eStholo                /* First check the numeric values */
*461cc63eStholo#               if ENAMETOOLONG != 35
*461cc63eStholo#                       error "ENAMETOOLONG: value unknown"
*461cc63eStholo#               endif
*461cc63eStholo#               if ENOTEMPTY != 39
*461cc63eStholo#                       error "ENOTEMPTY: value unknown"
*461cc63eStholo#               endif
*461cc63eStholo#               undef  ENAMETOOLONG
*461cc63eStholo#               undef  ENOTEMPTY
*461cc63eStholo#               include <nerrno.h>
*461cc63eStholo#               undef  ENAMETOOLONG
*461cc63eStholo#               undef  ENOTEMPTY
*461cc63eStholo#               define ENAMETOOLONG     35
*461cc63eStholo#               define ENOTEMPTY        39
*461cc63eStholo#       endif
13571821Stholo#	include	<types.h>
13571821Stholo#	if !defined( TCPIP_IBM_NOHIDE )
13571821Stholo#		define send IbmSockSend
13571821Stholo#		define recv IbmSockRecv
13571821Stholo#	endif
13571821Stholo#endif
13571821Stholo
13571821Stholo#if defined( TCPIP_IBM )
13571821Stholo#	define	BSD_SELECT
13571821Stholo#	include	<sys/select.h>
13571821Stholo#	include	<sys/time.h>
13571821Stholo#	include <nerrno.h>
13571821Stholo#	include <utils.h>
13571821Stholo#	if defined( MICROSOFT )
13571821Stholo#		define	SOCK_ERRNO		(tcperrno())
13571821Stholo#	else
13571821Stholo#		define	SOCK_ERRNO		(sock_errno())
13571821Stholo#	endif
13571821Stholo#	define	HOST_ERRNO		(h_errno)
13571821Stholo#	define	SockClose(S)	soclose(S)
13571821Stholo#	define	SockInit()		(!sock_init())
13571821Stholo#	define	SockSend		IbmSockSend
13571821Stholo#	define	SockRecv		IbmSockRecv
13571821Stholo
13571821Stholoconst char *HostStrError(int HostErrno);
13571821Stholoconst char *SockStrError(int SockErrno);
13571821Stholo
13571821Stholoint IbmSockSend (int Socket, const void *Buffer, int Len, int Flags);
13571821Stholoint IbmSockRecv (int Socket, const void *Buffer, int Len, int Flags);
13571821Stholo
13571821Stholo#if !defined( h_errno )
13571821Stholoextern int h_errno; /* IBM forgot to declare this in current header files */
13571821Stholo#endif
13571821Stholo
13571821Stholo#elif defined( __unix )
13571821Stholo#	if defined( sgi ) /* SGI incorrectly defines FD_ZERO in sys/select.h */
13571821Stholo#		include <bstring.h>
13571821Stholo#	endif
13571821Stholo#	if defined( sunos )
13571821Stholoextern int select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
13571821Stholo#	else
13571821Stholo#		include <sys/select.h>
13571821Stholo#	endif
13571821Stholo#	include <sys/time.h>
13571821Stholo#	include <errno.h>
13571821Stholo#	include <arpa/inet.h>
13571821Stholo#	define	SOCK_ERRNO		errno
13571821Stholo#	define	HOST_ERRNO		h_errno
13571821Stholo#	define	SockClose(S)	close(S)
13571821Stholo#	define	SockInit()		TRUE
13571821Stholo#	define	SockSend		send
13571821Stholo#	define	SockRecv		recv
13571821Stholo#	define	SockStrError(E) strerror(E)
13571821Stholo
13571821Stholoconst char *HostStrError( int HostErrno );
13571821Stholo
13571821Stholo#else
13571821Stholo#	error Undefined version of TCP/IP specified
13571821Stholo
13571821Stholo#endif
13571821Stholo
13571821Stholo#endif