snapshot of project "lynx", label v2-8-3dev_4

1 files changed, 765 insertions, 0 deletions

diff --git a/WWW/Library/Implementation/www_tcp.h b/WWW/Library/Implementation/www_tcp.h
new file mode 100644
index 00000000..b9e3bbf5
--- /dev/null
+++ b/WWW/Library/Implementation/www_tcp.h
@@ -0,0 +1,765 @@
+/*                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.  It should be used in conjunction with HTUtils.h to help
+   ensure portability across as many platforms and flavors of platforms
+   as possible.
+
+  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
+  20 May 94		  A.Harper Add support for VMS CMU TCP/IP transport
+   3 Oct 94		  A.Harper Add support for VMS SOCKETSHR/NETLIB
+  15 Jul 95               S. Bjorndahl Gnu C for VMS Globaldef/ref support
+
+*/
+
+#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      */
+#define SOCKET_READ read    /* normal socket read routine */
+#define IOCTL ioctl	    /* normal ioctl routine for sockets */
+#define SOCKET_ERRNO errno	    /* normal socket errno */
+
+/* Unless stated otherwise, */
+#define SELECT                  /* Can handle >1 channel.               */
+#define GOT_SYSTEM              /* Can call shell with string           */
+
+#ifdef UNIX
+#define GOT_PIPE
+#endif /* UNIX */
+
+#define INVSOC (-1)             /* Unix invalid socket */
+		/* NB: newer libwww has something different for Windows */
+
+typedef struct sockaddr_in SockA;  /* See netinet/in.h */
+
+#ifndef VMS
+#include <sys/types.h>
+
+#if defined(__DJGPP__) || defined(__BORLANDC__)
+#undef HAVE_DIRENT_H
+#define HAVE_DIRENT_H
+#undef HAVE_SYS_FILIO_H
+#endif /* DJGPP or __BORLANDC__ */
+
+#if defined(_MSC_VER)
+#define HAVE_DIRENT_H
+#undef HAVE_SYS_FILIO_H
+#endif /* _MSC_VER */
+
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+# define D_NAMLEN(dirent) strlen((dirent)->d_name)
+# define STRUCT_DIRENT struct dirent
+#else
+# define D_NAMLEN(dirent) (dirent)->d_namlen
+# define STRUCT_DIRENT struct direct
+# ifdef HAVE_SYS_NDIR_H
+#  include <sys/ndir.h>
+# endif
+# ifdef HAVE_SYS_DIR_H
+#  include <sys/dir.h>
+# endif
+# ifdef HAVE_NDIR_H
+#  include <ndir.h>
+# endif
+#endif /* HAVE_DIRENT_H */
+#endif /* !VMS */
+
+#ifdef TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# ifdef HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+
+#if defined(_AIX) && !defined(AIX)
+#define AIX
+#endif /* _AIX */
+
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#else
+#ifdef HAVE_SYS_FCNTL_H
+#include <sys/fcntl.h>
+#endif
+#endif
+
+#ifdef HAVE_STRING_H
+#include <string.h>             /* For bzero etc */
+#endif /* HAVE_STRING_H */
+
+/*
+
+  MACROS FOR CONVERTING CHARACTERS
+
+ */
+#ifndef TOASCII
+#ifdef EBCDIC  /* S/390 -- gil -- 1327 */
+
+extern       char un_IBM1047[];
+extern unsigned char IBM1047[];
+/* For debugging
+#include <assert.h>
+#define   TOASCII(c) (assert((c)>=0 && (c)<256), un_IBM1047[c])
+*/ /* for production */
+#define   TOASCII(c) (un_IBM1047[c])
+
+#define FROMASCII(c) (IBM1047[c])
+
+#else  /* EBCDIC */
+
+#if '0' != 48
+ error Host character set is not ASCII.
+#endif
+
+#define TOASCII(c) (c)
+#define FROMASCII(c) (c)
+
+#endif /* EBCDIC */
+#endif /* !TOASCII */
+
+
+/*
+IBM-PC running Windows NT
+
+	These parameters providede by  Susan C. Weber <sweber@kyle.eitech.com>.
+*/
+
+#ifdef _WINDOWS
+#define _WINDOWS_NSL
+#include <fcntl.h>                      /* For HTFile.c */
+#include <sys\types.h>                  /* For HTFile.c */
+#include <sys\stat.h>                   /* For HTFile.c */
+#undef NETREAD
+#undef NETWRITE
+#undef NETCLOSE
+#undef IOCTL
+#define NETREAD(s,b,l)  ws_netread((s),(b),(l))	/* 1997/11/06 (Thu) */
+#define NETWRITE(s,b,l) send((s),(b),(l),0)
+#define NETCLOSE(s)     closesocket(s)
+#define IOCTL				ioctlsocket
+#include <io.h>
+#include <string.h>
+#include <process.h>
+#include <time.h>
+#include <errno.h>
+#include <direct.h>
+#include <winsock.h>
+typedef struct sockaddr_in SockA;  /* See netinet/in.h */
+
+#if defined(_MSC_VER)
+#undef EINTR
+#undef EAGAIN
+#endif /* _MSC_VER */
+
+#define EWOULDBLOCK          (WSABASEERR+35)	/* ADD by JH7AYN */
+#define EINPROGRESS          (WSABASEERR+36)
+#define EALREADY             (WSABASEERR+37)
+#define EISCONN              (WSABASEERR+56)
+#define EINTR                (WSABASEERR+4)
+#define EAGAIN               (WSABASEERR+1002)
+#define ENOTCONN             (WSABASEERR+57)
+#define ECONNRESET           (WSABASEERR+54)
+#define ETIMEDOUT             WSAETIMEDOUT	/* 1997/11/10 (Mon) */
+#define EINVAL                22
+#undef  SOCKET_ERRNO	/* 1997/10/19 (Sun) 18:01:46 */
+#define SOCKET_ERRNO          WSAGetLastError()
+#define INCLUDES_DONE
+#define TCP_INCLUDES_DONE
+#endif  /* WINDOWS */
+
+
+
+/*
+
+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)
+  CMU_TCP                 Available via FTP from sacusr.mp.usbr.gov
+  SOCKETSHR		  Eckhart Meyer's interface to NETLIB
+  WIN_TCP                 From Wollongong, now GEC software.
+  MULTINET                From SRI, became TGV, then Cisco.
+  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 UCX
+#undef IOCTL
+#define IOCTL HTioctl
+#endif /* UCX */
+
+#ifdef WIN_TCP
+#undef SOCKET_READ
+#undef NETWRITE
+#undef NETCLOSE
+#define SOCKET_READ(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))
+#undef IOCTL
+#define IOCTL(a,b,c) -1 /* disables ioctl function	      */
+#define NO_IOCTL	/* flag to check if ioctl is disabled */
+#endif /* WIN_TCP */
+
+#ifdef CMU_TCP
+#undef SOCKET_READ
+#undef NETREAD
+#undef NETWRITE
+#undef NETCLOSE
+#define SOCKET_READ(s,b,l) (cmu_get_sdc((s)) != 0 ? cmu_read((s),(b),(l)) : read((s),(b),(l)))
+#define NETREAD(s,b,l) (cmu_get_sdc((s)) != 0 ? HTDoRead((s),(b),(l)) : read((s),(b),(l)))
+#define NETWRITE(s,b,l) (cmu_get_sdc((s)) != 0 ? cmu_write((s),(b),(l)) : write((s),(b),(l)))
+#define NETCLOSE(s) (cmu_get_sdc((s)) != 0 ? cmu_close((s)) : close((s)))
+#endif /* CMU_TCP */
+
+#ifdef MULTINET
+#undef NETCLOSE
+#undef SOCKET_READ
+#undef NETWRITE
+#undef IOCTL
+#undef SOCKET_ERRNO
+/*
+**  Delete these socket_foo() prototypes as MultiNet adds them
+**  to it's socket library headers.  Compiler warnings due to
+**  the absence of arguments in the generic prototypes here will
+**  include the names of those which can be deleted. - FM
+*/
+extern int socket_read();
+extern int socket_write();
+extern int socket_close();
+extern int socket_ioctl();
+
+#define SOCKET_READ(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))
+#define IOCTL socket_ioctl
+#define SOCKET_ERRNO socket_errno
+#endif /* MULTINET */
+
+#ifdef SOCKETSHR_TCP
+#undef SOCKET_READ
+#undef NETREAD
+#undef NETWRITE
+#undef NETCLOSE
+#undef IOCTL
+#define SOCKET_READ(s,b,l) (si_get_sdc((s)) != 0 ? si_read((s),(b),(l)) : \
+                                read((s),(b),(l)))
+#define NETREAD(s,b,l) (si_get_sdc((s)) != 0 ? HTDoRead((s),(b),(l)) : \
+                                read((s),(b),(l)))
+#define NETWRITE(s,b,l) (si_get_sdc((s)) != 0 ? si_write((s),(b),(l)) : \
+                                write((s),(b),(l)))
+#define NETCLOSE(s) (si_get_sdc((s)) != 0 ? si_close((s)) : close((s)))
+#define IOCTL si_ioctl
+#endif /* SOCKETSHR_TCP */
+
+#include <string.h>
+
+#include <file.h>
+#include <stat.h>
+#include <unixio.h>
+#include <unixlib.h>
+
+#define INCLUDES_DONE
+
+#ifdef MULTINET  /* Include from standard Multinet directories */
+/*
+**  Delete any of these multinet_foo() and associated prototypes
+**  as MultiNet adds them to its socket library headers.  You'll
+**  get compiler warnings about them, due the absence of arguments
+**  in the generic prototyping here, and the warnings will include
+**  the names of the functions whose prototype entries can be
+**  deleted here. - FM
+*/
+extern int multinet_accept();
+extern int multinet_bind();
+extern int multinet_connect();
+extern int multinet_gethostname();
+extern int multinet_getsockname();
+extern unsigned short multinet_htons(unsigned short __val);
+extern unsigned short multinet_ntohs(unsigned short __val);
+extern int multinet_listen();
+extern int multinet_select();
+extern int multinet_socket();
+extern char *vms_errno_string();
+
+#ifndef __SOCKET_TYPEDEFS
+#define __SOCKET_TYPEDEFS 1
+#endif /* !__SOCKET_TYPEDEFS */
+#include <time.h>
+#include <types.h>
+#ifdef __TIME_T
+#undef  __TYPES
+#define __TYPES 1
+#define __TYPES_LOADED 1
+#endif /* __TIME_T */
+#ifdef __SOCKET_TYPEDEFS
+#undef __SOCKET_TYPEDEFS
+#endif /* __SOCKET_TYPEDEFS */
+#include "multinet_root:[multinet.include.sys]types.h"
+#ifndef __SOCKET_TYPEDEFS
+#define __SOCKET_TYPEDEFS 1
+#endif /* !__SOCKET_TYPEDEFS */
+#include "multinet_root:[multinet.include]errno.h"
+#ifdef __TYPES
+#undef  __TIME_T
+#define __TIME_T 1
+#endif /* __TYPE */
+#ifdef __TIME_LOADED
+#undef  __TIME
+#define __TIME 1  /* to avoid double definitions in in.h */
+#endif /* __TIME_LOADED */
+#include "multinet_root:[multinet.include.sys]time.h"
+#include "multinet_root:[multinet.include.sys]socket.h"
+#include "multinet_root:[multinet.include.netinet]in.h"
+#include "multinet_root:[multinet.include.arpa]inet.h"
+#include "multinet_root:[multinet.include]netdb.h"
+#include "multinet_root:[multinet.include.sys]ioctl.h"
+#define TCP_INCLUDES_DONE
+/*
+**  Uncomment this if you get compiler messages
+**  about struct timeval having no linkage. - FM
+*/
+/*#define NO_TIMEVAL*/
+#ifdef NO_TIMEVAL
+struct timeval {
+    long tv_sec;		/* seconds since Jan. 1, 1970 */
+    long tv_usec;		/* microseconds */
+};
+#endif /* NO_TIMEVAL */
+#endif /* MULTINET */
+
+
+#ifdef DECNET
+#include <types.h>
+#include <errno.h>
+#include <time.h>
+#include <types.h>  /* for socket.h */
+#include <socket.h>
+#include <dn>
+#include <dnetdb>
+/* #include "vms.h" */
+#define TCP_INCLUDES_DONE
+#endif /* DECNET */
+
+
+#ifdef UCX
+#include <types.h>
+#include <errno.h>
+#include <time.h>
+#include <socket.h>
+#include <in.h>
+#include <inet.h>
+#if defined(TCPWARE) && !defined(__DECC)
+#include "tcpware_include:netdb.h"
+#include "tcpware_include:ucx$inetdef.h"
+#else
+#include <netdb.h>
+#include <ucx$inetdef.h>
+#endif /* TCPWARE */
+#define TCP_INCLUDES_DONE
+#endif /* UCX */
+
+
+#ifdef CMU_TCP
+#include <types.h>
+#include <errno.h>
+#include "cmuip_root:[syslib]time.h"
+#include "cmuip_root:[syslib]socket.h"
+#include <in.h>
+#include <inet.h>
+#include <netdb.h>
+#include "cmuip_root:[syslib]ioctl.h"
+#define TCP_INCLUDES_DONE
+#endif /* CMU_TCP */
+
+
+#ifdef SOCKETSHR_TCP
+#include <types.h>
+#include <errno.h>
+#include <time.h>
+#include <socket.h>
+#include <in.h>
+#include <inet.h>
+#include <netdb.h>
+#include "socketshr_library:socketshr.h"
+#include "socketshr_library:ioctl.h"
+#define TCP_INCLUDES_DONE
+#endif /* SOCKETSHR_TCP */
+
+#ifdef WIN_TCP
+#include <types.h>
+#include <errno.h>
+#include <time.h>
+#include <socket.h>
+#include <in.h>
+#include <inet.h>
+#include <netdb.h>
+#ifndef NO_IOCTL
+#include <ioctl.h>
+#endif /* !NO_IOCTL */
+#define TCP_INCLUDES_DONE
+#endif /* WIN_TCP */
+
+#ifndef TCP_INCLUDES_DONE
+#include <types.h>
+#include <errno.h>
+#include <time.h>
+#ifdef VMS_SOCKET_HEADERS
+/*
+**  Not all versions of VMS have the full set of headers
+**  for socket library functions, because the TCP/IP
+**  packages were layered products.  If we want these
+**  specifically, instead of those for the above packages,
+**  the module should be compiled with VMS_SOCKET_HEADERS
+**  defined instead of layered product definitions, above.
+**  If the module is not using socket library functions,
+**  none of the definitions need be used, and we include
+**  only the above three headers. - FM
+*/
+#include <socket.h>
+#include <in.h>
+#include <inet.h>
+#include <netdb.h>
+#include <ioctl.h>
+#endif /* VMS_SOCKET_HEADERS */
+#define TCP_INCLUDES_DONE
+#endif /* !TCP_INCLUDES_DONE */
+
+/*
+
+   On VMS machines, the linker needs to be told to put global data sections into
+ a data
+   segment using these storage classes. (MarkDonszelmann)
+
+ */
+#if defined(VAXC) && !defined(__DECC)
+#define GLOBALDEF globaldef
+#define GLOBALREF globalref
+#else
+#ifdef __GNUC__		/* this added by Sterling Bjorndahl */
+#define GLOBALREF_IS_MACRO 1
+#define GLOBALDEF_IS_MACRO 1
+#include <gnu_hacks.h>	/* defines GLOBALREF and GLOBALDEF for GNUC on VMS */
+#endif  /* __GNUC__ */
+#endif /* VAXC && !DECC */
+
+#endif /* VMS */
+
+/*
+ * On non-VMS machines and for DECC on VMS, the GLOBALDEF and GLOBALREF
+ * storage types default to normal C storage types.
+ */
+#ifndef GLOBALREF
+#define GLOBALDEF
+#define GLOBALREF extern
+#endif /* !GLOBALREF */
+
+#ifdef DJGPP
+#undef SELECT
+#define TCP_INCLUDES_DONE
+#define NO_IOCTL
+#define DECL_ERRNO
+#include <errno.h>
+#include <sys/types.h>
+#include <socket.h>
+
+#undef NETWRITE
+#define NETWRITE write_s
+#undef NETREAD
+#define NETREAD read_s
+#undef NETCLOSE
+#define NETCLOSE close_s
+#ifndef WATT32
+#define getsockname getsockname_s
+#endif /* WATT32 */
+#ifdef HAVE_GETTEXT
+#define gettext gettext__
+#endif
+#endif /* DJGPP */
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#ifdef HAVE_SYS_FILIO_H
+#include <sys/filio.h>
+#endif /* HAVE_SYS_FILIO_H */
+
+#if !defined(HAVE_LSTAT) && !defined(lstat)
+#define lstat(path,block) stat(path,block)
+#endif
+
+#if defined(DECL_ERRNO) && !defined(errno)
+extern int errno;
+#endif /* DECL_ERRNO */
+
+/*
+Regular BSD unix versions
+=========================
+   These are a default unix where not already defined specifically.
+ */
+#ifndef INCLUDES_DONE
+#include <sys/types.h>
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif /* HAVE_STRING_H */
+#include <errno.h>          /* independent */
+#ifdef __MVS__  /* S/390 -- gil -- 1361 */
+#include <time.h>
+#endif /* __MVS__ */
+#ifdef SCO
+#include <sys/timeb.h>
+#include <time.h>
+#endif /* SCO */
+#if defined(AIX) || defined(SVR4)
+#include <time.h>
+#endif /* AIX || SVR4 */
+#include <sys/time.h>       /* independent */
+#include <sys/stat.h>
+#ifndef __MVS__  /* S/390 -- gil -- 1373 */
+#include <sys/param.h>
+#endif /* __MVS__ */
+#include <sys/file.h>       /* For open() etc */
+
+#if defined(NeXT) || defined(sony_news)
+#ifndef mode_t
+typedef unsigned short mode_t;
+#endif /* !mode_t */
+
+#ifndef pid_t
+typedef int pid_t;
+#endif /* !pid_t */
+
+#ifndef WEXITSTATUS
+#ifdef sony_news
+#define WEXITSTATUS(s) WIFEXITED(s)
+#else
+#define WEXITSTATUS(s) (((s).w_status >> 8) & 0377)
+#endif /* sony_news */
+#endif /* !WEXITSTATUS */
+
+#ifndef WTERMSIG
+#ifdef sony_news
+#define WTERMSIG(s) (s).w_termsig
+#else
+#define WTERMSIG(s) (((s).w_status >> 8) & 0177)
+#endif /* sony_news */
+#endif /* !WTERMSIG */
+
+#endif /* NeXT || sony_news */
+
+#define INCLUDES_DONE
+#endif  /* Normal includes */
+
+/* FIXME: this should be autoconf'd */
+/* Interactive UNIX for i386 and i486 -- Thanks to jeffrey@itm.itm.org */
+#ifdef ISC
+#include <net/errno.h>
+#include <sys/types.h>
+#include <sys/tty.h>
+#include <sys/sioctl.h>
+#include <sys/bsdtypes.h>
+#ifndef MERGE
+#define MERGE
+#include <sys/pty.h>
+#undef MERGE
+#else
+#include <sys/pty.h>
+#endif /* !MERGE */
+#ifndef USE_DIRENT
+#define USE_DIRENT     /* sys V style directory open */
+#endif /* USE_DIRENT */
+#include <sys/dirent.h>
+#endif /* ISC */
+
+/*	Directory reading stuff - BSD or SYS V
+*/
+#ifdef HAVE_CONFIG_H
+
+# ifdef HAVE_LIMITS_H
+#  include <limits.h>
+# endif /* HAVE_LIMITS_H */
+# if !defined(MAXINT) && defined(INT_MAX)
+#  define MAXINT INT_MAX
+# endif /* !MAXINT && INT_MAX */
+
+#else
+
+#ifndef VM
+#ifndef VMS
+#ifndef THINK_C
+#define DECL_SYS_ERRLIST 1
+#endif /* !THINK_C */
+#endif /* !VMS */
+#endif /* !VM */
+
+#endif /* !HAVE_CONFIG_H */
+
+#ifdef HAVE_LIBINTL_H
+#include <libintl.h>
+#endif
+
+#ifndef HAVE_GETTEXT
+#define gettext(s) s
+#endif
+
+/*
+Defaults
+========
+  INCLUDE FILES FOR TCP
+ */
+#ifndef TCP_INCLUDES_DONE
+#ifndef NO_IOCTL
+#include <sys/ioctl.h> /* EJB */
+#endif /* !NO_IOCTL */
+#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 /* !__hpux */
+#include <netdb.h>
+#endif  /* TCP includes */
+
+#ifndef S_ISLNK
+#define S_ISLNK(m)	(((m) & S_IFMT) == S_IFLNK)
+#endif /* S_ISLNK */
+
+#ifndef S_ISDIR
+#define S_ISDIR(m)	(((m) & S_IFMT) == S_IFDIR)
+#endif /* S_ISDIR */
+
+#ifndef S_ISREG
+#define S_ISREG(m)	(((m) & S_IFMT) == S_IFREG)
+#endif /* S_ISREG */
+
+#ifndef S_ISUID
+#define S_ISUID  0004000
+#endif
+#ifndef S_ISGID
+#define S_ISGID  0002000
+#endif
+#ifndef S_ISVTX
+#define S_ISVTX  0001000
+#endif
+
+#ifndef S_IRWXU
+#define S_IRWXU 00700
+#endif
+
+#ifndef S_IRUSR
+#define S_IRUSR 00400
+#endif
+#ifndef S_IWUSR
+#define S_IWUSR 00200
+#endif
+#ifndef S_IXUSR
+#define S_IXUSR 00100
+#endif
+
+#ifndef S_IRWXG
+#define S_IRWXG 00070
+#endif
+
+#ifndef S_IRGRP
+#define S_IRGRP 00040
+#endif
+#ifndef S_IWGRP
+#define S_IWGRP 00020
+#endif
+#ifndef S_IXGRP
+#define S_IXGRP 00010
+#endif
+
+#ifndef S_IRWXO
+#define S_IRWXO 00007
+#endif
+
+#ifndef S_IROTH
+#define S_IROTH 00004
+#endif
+#ifndef S_IWOTH
+#define S_IWOTH 00002
+#endif
+#ifndef S_IXOTH
+#define S_IXOTH 00001
+#endif
+
+/*
+
+ROUGH ESTIMATE OF MAX PATH LENGTH
+
+*/
+#ifndef HT_MAX_PATH
+#ifdef MAXPATHLEN
+#define HT_MAX_PATH MAXPATHLEN
+#else
+#ifdef PATH_MAX
+#define HT_MAX_PATH PATH_MAX
+#else
+#define HT_MAX_PATH 1024                        /* Any better ideas? */
+#endif
+#endif
+#endif /* HT_MAX_PATH */
+
+#if HT_MAX_PATH < 256
+#undef HT_MAX_PATH
+#define HT_MAX_PATH 256
+#endif
+
+/*
+  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 */