snapshot of project "lynx", label v2-8-8dev_8m

1 files changed, 983 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..63178adf
--- /dev/null
+++ b/WWW/Library/Implementation/www_tcp.h
@@ -0,0 +1,983 @@
+/*                System dependencies in the W3 library
+ * $LynxId: www_tcp.h,v 1.53 2011/05/24 23:48:50 tom Exp $
+ *
+                                   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: */
+	/* Routine to close a TCP-IP socket         */
+#define NETCLOSE close
+	/* Routine to read from a TCP-IP socket     */
+#define NETREAD(s,p,n) \
+	HTDoRead(s, p, (unsigned)(n))
+	/* Routine to write to a TCP-IP socket      */
+#define NETWRITE(s,p,n)		write(s, p, (size_t)(n))
+#define SOCKET_READ(s,b,l)	read(s,b,(size_t)(l))
+#define IOCTL(s,cmd,arg)	ioctl(s,(long)(cmd),arg)
+#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 */
+
+#ifndef VMS
+
+#include <sys/types.h>
+
+#if defined(__BORLANDC__)
+#define DECL_ERRNO
+#endif
+
+#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)
+#undef HAVE_DIRENT_H
+#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 */
+
+#ifdef HAVE_STRUCT_DIRENT64
+# undef STRUCT_DIRENT
+# define STRUCT_DIRENT struct dirent64
+#endif
+
+#if !(defined(DOSPATH) || defined(__EMX__) || defined(__CYGWIN__))
+#define STRUCT_DIRENT__D_INO 1
+#endif
+
+#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 */
+
+#ifndef __CYGWIN__
+#ifdef WIN_EX
+#define HAVE_FTIME 1
+#define HAVE_SYS_TIMEB_H 1
+#endif
+#endif /* __CYGWIN__ */
+
+#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 const char un_IBM1047[];
+extern const 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 */
+
+/* convert a char to an unsigned, needed if we have signed characters for ctype.h */
+#define UCH(ch) ((unsigned char)(ch))
+
+/*
+ * These parameters were provided by Nigel Horne, using BeOS professional 5.0
+ */
+#ifdef  __BEOS__
+#undef NETREAD
+#undef NETWRITE
+#undef NETCLOSE
+#define NETREAD(s,b,l)  recv((s),(b),(l),0)
+#define NETWRITE(s,b,l) send((s),(b),(l),0)
+#define NETCLOSE(s)     closesocket(s)
+#endif
+
+/*
+IBM-PC running Windows NT
+
+	These parameters provided by  Susan C. Weber <sweber@kyle.eitech.com>.
+*/
+
+#ifdef _WINDOWS
+
+#ifndef _WINDOWS_NSL
+#define _WINDOWS_NSL
+#endif
+
+#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
+extern int ws_netread(int fd, char *buf, int len);
+
+#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(s,cmd,arg)	ioctlsocket(s,cmd,arg)
+#include <io.h>
+#include <string.h>
+#include <process.h>
+#include <time.h>
+#include <errno.h>
+#include <direct.h>
+
+#ifdef ENABLE_IPV6
+#undef  USE_WINSOCK2_H
+#define USE_WINSOCK2_H
+
+/* Avoid including <winsock*.h> in <windows.h> */
+#ifndef WIN32_LEAN_AND_MEAN
+#error Define "WIN32_LEAN_AND_MEAN" in your makefile
+#endif
+
+#ifdef _WINSOCKAPI_
+#error windows.h included before winsock2.h
+#endif
+
+#if defined(_MSC_VER) && (!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0501)
+/*
+ * Needed to pull in the real getaddrinfo() and not the inline version
+ * in <wspiAPI.H> which doesn't support IPv6 (IPv4 only). <wspiAPI.H> is
+ * included from <ws2tcpip.h> for <= 0x0500 SDKs.
+ */
+#undef  _WIN32_WINNT
+#define _WIN32_WINNT 0x0501
+#endif
+#endif /* ENABLE_IPV6 */
+
+#ifdef USE_WINSOCK2_H
+#include <winsock2.h>		/* normally included in windows.h */
+
+#ifdef ENABLE_IPV6
+#include <ws2tcpip.h>
+#endif
+
+#undef EINPROGRESS
+#undef EALREADY
+#undef EISCONN
+#undef EINTR
+#undef EAGAIN
+#undef ENOTCONN
+#undef ECONNRESET
+#undef ETIMEDOUT
+
+#define EINPROGRESS  WSAEINPROGRESS
+#define EALREADY     WSAEALREADY
+#define EISCONN      WSAEISCONN
+#define EINTR        WSAEINTR
+/* fine EAGAIN       WSAEAGAIN */
+#define ENOTCONN     WSAENOTCONN
+#define ECONNRESET   WSAECONNRESET
+#define ETIMEDOUT    WSAETIMEDOUT
+
+#else /* USE_WINSOCK2_H */
+
+#include <winsock.h>
+
+#if defined(_MSC_VER) || defined(__MINGW32__)
+#undef EINTR
+#undef EAGAIN
+#endif /* _MSC_VER */
+
+#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
+
+#endif /* USE_WINSOCK2_H */
+
+#undef  SOCKET_ERRNO
+#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
+  TCPIP_SERVICES          TCP/IP Services (newer than UCX)
+
+   WIN_TCP, MULTINET and DECNET 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(s,cmd,arg)	HTioctl(s,cmd,arg)
+#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(s,cmd,arg)	socket_ioctl(s,cmd,arg)
+#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(s,cmd,arg)	si_ioctl(s,cmd,arg)
+#endif /* SOCKETSHR_TCP */
+
+#ifdef TCPIP_SERVICES
+/*
+ * TCPIP Services has all of the entrypoints including ioctl().
+ */
+#undef NETWRITE
+#define NETWRITE(s,b,l) send((s),(char *)(b),(l),0)
+
+#define TYPE_FD_SET int
+
+#if 0				/* this should be declared via time.h */
+typedef TYPE_FD_SET fd_set;
+#endif
+
+#endif /* TCPIP_SERVICES */
+
+#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>
+/*
+ * DEC C before version 5.2 added some typedefs to <types.h> which happen
+ * to be suppressed if the version-4 compatibility define is set.  In
+ * particular, lynx uses "off_t".  VAX-C used "unsigned", DEC-C uses "int".
+ */
+#if defined(_DECC_V4_SOURCE) && !defined(____OFF_T)
+#undef off_t
+#define off_t int
+#endif
+
+#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"
+
+#define MULTINET_NO_PROTOTYPES	/* DECC is compatible-but-different */
+#include "multinet_root:[multinet.include.sys]socket.h"
+#undef MULTINET_NO_PROTOTYPES
+#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$inetdef.h"
+#else
+#include <netdb.h>
+#ifdef MUCX
+#include <multinet_root:[multinet.include.vms]ucx$inetdef.h>
+#else
+#include <ucx$inetdef.h>
+#endif /* MUCX */
+#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 TCPIP_SERVICES
+#include <types.h>
+#include <errno.h>
+#include <time.h>
+#include <ioctl.h>
+#include <socket.h>
+#include <in.h>
+#include <inet.h>
+#include <netdb.h>
+#define TCP_INCLUDES_DONE
+#endif /* TCPIP_SERVICES */
+
+#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 */
+
+#include <perror.h>
+#ifndef errno
+extern int errno;
+#endif /* !errno */
+
+#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
+#undef  IOCTL
+#define IOCTL(s,cmd,arg)	ioctlsocket(s,cmd,(char*)(arg))
+#define DECL_ERRNO
+#include <errno.h>
+#include <sys/types.h>
+#include <io.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <tcp.h>
+#ifdef word
+#undef word
+#endif /* word */
+#ifdef set_timeout
+#undef set_timeout
+#endif /* set_timeout */
+#define select select_s
+
+#undef NETWRITE
+#define NETWRITE write_s
+#undef NETREAD
+#define NETREAD read_s
+#undef NETCLOSE
+#define NETCLOSE close_s
+#ifdef UNIX
+#undef UNIX
+#endif /* UNIX */
+#ifdef HAVE_GETTEXT
+#define gettext gettext__
+#endif
+#if !defined(NCURSES) && !defined(USE_SLANG)
+#define HAVE_CBREAK 1
+#endif /* !NCURSES && !USE_SLANG */
+#if defined(USE_SLANG) && !defined(NO_DJ_KEYHANDLER) && defined(HAVE_CONFIG_H)
+#define DJGPP_KEYHANDLER
+#endif /* USE_SLANG && !NO_DJ_KEYHANDLER  && HAVE_CONFIG_H */
+#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 */
+
+#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
+
+#if !(defined(VM) || defined(VMS) || defined(THINK_C) || defined(PCNFS) || defined(_WINDOWS))
+#define DECL_SYS_ERRLIST 1
+#endif
+
+#if defined(VMS)
+#define socklen_t unsigned
+#else
+#define socklen_t int		/* used for default LY_SOCKLEN definition */
+#endif
+
+#endif /* !HAVE_CONFIG_H */
+
+#ifdef HAVE_LIBINTL_H
+#include <libintl.h>
+#endif
+
+#ifdef HAVE_LIBGETTEXT_H
+#include <libgettext.h>
+#endif
+
+#define N_(s) s
+
+#ifndef HAVE_GETTEXT
+#define gettext(s) s
+#endif
+
+#ifndef NLS_TEXTDOMAIN
+#define NLS_TEXTDOMAIN "lynx"
+#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>
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>		/* Must be after netinet/in.h */
+#endif
+#include <netdb.h>
+#endif /* TCP includes */
+
+typedef unsigned short PortNumber;
+
+#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
+#ifndef TYPE_FD_SET
+#define TYPE_FD_SET unsigned
+typedef TYPE_FD_SET fd_set;
+#endif /* !TYPE_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 */
+
+/*
+ * Macro for setting errno - only define this if you really can do it.
+ */
+#if defined(CAN_SET_ERRNO) || (!defined(errno) && (!defined(VMS) || defined(UCX)))
+#define set_errno(value) errno = value
+#else
+#define set_errno(value)	/* we do not know how */
+#endif
+
+/*
+ * IPv6 support
+ */
+#if defined(HAVE_GETADDRINFO) && defined(ENABLE_IPV6)
+#if defined(HAVE_GAI_STRERROR)
+#define INET6
+#elif defined(_WINDOWS)
+#define INET6
+#ifndef WIN_EX
+#error Define "WIN_EX" in your makefile.
+#endif
+#ifndef _MSC_VER		/* MSVC has this inlined in <ws2tcpip.h> */
+#undef  gai_strerror
+#define gai_strerror(err) w32_strerror (err)
+#endif
+#endif
+#endif /* HAVE_GETADDRINFO && ENABLE_IPV6 */
+
+#ifdef INET6
+typedef struct sockaddr_storage SockA;
+
+#ifdef SIN6_LEN
+#define SOCKADDR_LEN(soc_address) (((struct sockaddr *)&soc_address)->sa_len)
+#else
+#ifndef SA_LEN
+#define SA_LEN(x) (((x)->sa_family == AF_INET6) \
+		   ? sizeof(struct sockaddr_in6) \
+		   : (((x)->sa_family == AF_INET) \
+		      ? sizeof(struct sockaddr_in) \
+		      : sizeof(struct sockaddr)))	/* AF_UNSPEC? */
+#endif
+#define SOCKADDR_LEN(soc_address) (socklen_t) (SA_LEN((struct sockaddr *)&soc_address))
+#endif /* SIN6_LEN */
+#else
+typedef struct sockaddr_in SockA;
+
+#define SOCKADDR_LEN(soc_address) sizeof(soc_address)
+#endif /* INET6 */
+
+#ifndef MAXHOSTNAMELEN
+#define MAXHOSTNAMELEN 128	/* Max label is 63. Should handle 2 of those */
+#endif /* MAXHOSTNAMELEN */
+
+#endif /* TCP_H */