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/* System dependencies in the W3 library
SYSTEM DEPENDENCIES
System-system differences for TCP include files and macros. This
file includes for each system the files necessary for network and
file I/O.
AUTHORS
TBL Tim Berners-Lee, W3 project, CERN, <timbl@info.cern.ch>
EvA Eelco van Asperen <evas@cs.few.eur.nl>
MA Marc Andreessen NCSA
AT Aleksandar Totic <atotic@ncsa.uiuc.edu>
SCW Susan C. Weber <sweber@kyle.eitech.com>
HISTORY:
22 Feb 91 Written (TBL) as part of the WWW library.
16 Jan 92 PC code from EvA
22 Apr 93 Merged diffs bits from xmosaic release
29 Apr 93 Windows/NT code from SCW
Much of the cross-system portability stuff has been intentionally
REMOVED from this version of the library by Marc A in order to
discourage attempts to make "easy" ports of Mosaic for X to non-Unix
platforms. The library needs to be rewritten from the ground up; in
the meantime, Unix is *all* we support or intend to support with
this set of source code.
*/
#ifndef TCP_H
#define TCP_H
/*
Default values
These values may be reset and altered by system-specific sections
later on. there are also a bunch of defaults at the end .
*/
/* Default values of those: */
#define NETCLOSE close /* Routine to close a TCP-IP socket */
#define NETREAD HTDoRead /* Routine to read from a TCP-IP socket */
#define NETWRITE write /* Routine to write to a TCP-IP socket */
/* Unless stated otherwise, */
#define SELECT /* Can handle >1 channel. */
#define GOT_SYSTEM /* Can call shell with string */
#ifdef unix
#define GOT_PIPE
#include <unistd.h>
#endif
typedef struct sockaddr_in SockA; /* See netinet/in.h */
#ifndef STDIO_H
#include <stdio.h>
#define STDIO_H
#endif
#ifdef _AIX
#define AIX
#endif
#ifdef AIX
#define unix
#endif
#ifdef _IBMR2
#define USE_DIRENT /* sys V style directory open */
#endif
/* Solaris. */
#if defined(sun) && defined(__svr4__)
#define USE_DIRENT /* sys V style directory open */
#endif
#if defined(__alpha)
#define USE_DIRENT
#endif
#ifndef USE_DIRENT
#ifdef SVR4
#define USE_DIRENT
#endif
#endif /* not USE_DIRENT */
#include <string.h>
/* Use builtin strdup when appropriate. */
#if defined(ultrix) || defined(VMS) || defined(NeXT)
extern char *strdup ();
#endif
/*
VAX/VMS
Under VMS, there are many versions of TCP-IP. Define one if you do
not use Digital's UCX product:
UCX DEC's "Ultrix connection" (default)
WIN_TCP From Wollongong, now GEC software.
MULTINET From SRI, now from TGV Inv.
DECNET Cern's TCP socket emulation over DECnet
The last three do not interfere with the
unix i/o library, and so they need special calls to read, write and
close sockets. In these cases the socket number is a VMS channel
number, so we make the @@@ HORRIBLE @@@ assumption that a channel
number will be greater than 10 but a unix file descriptor less than
10. It works.
*/
#ifdef vms
#ifdef WIN_TCP
#undef NETREAD
#undef NETWRITE
#undef NETCLOSE
#define NETREAD(s,b,l) ((s)>10 ? netread((s),(b),(l)) : read((s),(b),(l)))
#define NETWRITE(s,b,l) ((s)>10 ? netwrite((s),(b),(l)) : write((s),(b),(l)))
#define NETCLOSE(s) ((s)>10 ? netclose(s) : close(s))
#endif
#ifdef MULTINET
#undef NETCLOSE
#undef NETREAD
#undef NETWRITE
#define NETREAD(s,b,l) ((s)>10 ? socket_read((s),(b),(l)) : read((s),(b),(l)))
#define NETWRITE(s,b,l) ((s)>10 ? socket_write((s),(b),(l)) : \
write((s),(b),(l)))
#define NETCLOSE(s) ((s)>10 ? socket_close(s) : close(s))
#endif
/* Certainly this works for UCX and Multinet; not tried for Wollongong
*/
#ifdef MULTINET
#include "multinet_root:[multinet.include.sys]types.h"
#include "multinet_root:[multinet.include]errno.h"
#include "multinet_root:[multinet.include.sys]time.h"
#else
#include types
#include errno
#include time
#endif /* multinet */
#include string
#ifndef STDIO_H
#include stdio
#define STDIO_H
#endif
#include file
#include unixio
#define INCLUDES_DONE
#ifdef MULTINET /* Include from standard Multinet directories */
#include "multinet_root:[multinet.include.sys]socket.h"
#ifdef __TIME_LOADED /* defined by sys$library:time.h */
#define __TIME /* to avoid double definitions in next file */
#endif
#include "multinet_root:[multinet.include.netinet]in.h"
#include "multinet_root:[multinet.include.arpa]inet.h"
#include "multinet_root:[multinet.include]netdb.h"
#else /* not multinet */
#ifdef DECNET
#include "types.h" /* for socket.h */
#include "socket.h"
#include "dn"
#include "dnetdb"
/* #include "vms.h" */
#else /* UCX or WIN */
#include socket
#include in
#include inet
#include netdb
#endif /* not DECNET */
#endif /* of Multinet or other TCP includes */
#define TCP_INCLUDES_DONE
#endif /* vms */
/*
SCO ODT unix version
*/
#ifdef sco
#include <sys/fcntl.h>
#define USE_DIRENT
#endif
/*
MIPS unix
*/
/* Mips hack (bsd4.3/sysV mixture...) */
#ifdef mips
extern int errno;
#endif
/*
Regular BSD unix versions
These are a default unix where not already defined specifically.
*/
#ifndef INCLUDES_DONE
#include <sys/types.h>
/* #include <streams/streams.h> not ultrix */
#include <string.h>
#include <errno.h> /* independent */
#include <sys/time.h> /* independent */
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/file.h> /* For open() etc */
#define INCLUDES_DONE
#endif /* Normal includes */
/* Directory reading stuff - BSD or SYS V
*/
#ifdef unix /* if this is to compile on a UNIX machine */
#define GOT_READ_DIR 1 /* if directory reading functions are available */
#ifdef USE_DIRENT /* sys v version */
#include <dirent.h>
#define direct dirent
#else
#include <sys/dir.h>
#endif
#if defined(sun) && defined(__svr4__)
#include <sys/fcntl.h>
#include <limits.h>
#endif
#endif
/*
Defaults
INCLUDE FILES FOR TCP
*/
#ifndef TCP_INCLUDES_DONE
#include <sys/ioctl.h> /* EJB */
#include <sys/socket.h>
#include <netinet/in.h>
#ifndef __hpux /* this may or may not be good -marc */
#include <arpa/inet.h> /* Must be after netinet/in.h */
#endif
#include <netdb.h>
#endif /* TCP includes */
/*
MACROS FOR MANIPULATING MASKS FOR SELECT()
*/
#ifdef SELECT
#ifndef FD_SET
typedef unsigned int fd_set;
#define FD_SET(fd,pmask) (*(pmask)) |= (1<<(fd))
#define FD_CLR(fd,pmask) (*(pmask)) &= ~(1<<(fd))
#define FD_ZERO(pmask) (*(pmask))=0
#define FD_ISSET(fd,pmask) (*(pmask) & (1<<(fd)))
#endif /* FD_SET */
#endif /* SELECT */
#endif /* TCP_H */
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