/* 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, EvA Eelco van Asperen MA Marc Andreessen NCSA AT Aleksandar Totic SCW Susan C. Weber 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 */ #ifndef VMS #include #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 # 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 # endif # ifdef HAVE_SYS_DIR_H # include # endif # ifdef HAVE_NDIR_H # include # endif #endif /* HAVE_DIRENT_H */ #endif /* !VMS */ #ifdef TIME_WITH_SYS_TIME # include # include #else # ifdef HAVE_SYS_TIME_H # include # else # include # 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 #else #ifdef HAVE_SYS_FCNTL_H #include #endif #endif #ifdef HAVE_STRING_H #include /* 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 #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)) /* IBM-PC running Windows NT These parameters providede by Susan C. Weber . */ #ifdef _WINDOWS #ifndef _WINDOWS_NSL #define _WINDOWS_NSL #endif #include /* For HTFile.c */ #include /* For HTFile.c */ #include /* 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 ioctlsocket #include #include #include #include #include #include #ifdef USE_WINSOCK2_H #include /* normally included in windows.h */ #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_WINSOCK_H */ #include typedef struct sockaddr_in SockA; /* See netinet/in.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 /* 1997/11/10 (Mon) */ #undef SOCKET_ERRNO /* 1997/10/19 (Sun) 18:01:46 */ #define SOCKET_ERRNO WSAGetLastError() #endif /* USE_WINSOCK_H */ #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 #include #include #include #include #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 #include #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 #include #include #include /* for socket.h */ #include #include #include /* #include "vms.h" */ #define TCP_INCLUDES_DONE #endif /* DECNET */ #ifdef UCX #include #include #include #include #include #include #if defined(TCPWARE) && !defined(__DECC) #include "tcpware_include:netdb.h" #include "tcpware_include:ucx$inetdef.h" #else #include #include #endif /* TCPWARE */ #define TCP_INCLUDES_DONE #endif /* UCX */ #ifdef CMU_TCP #include #include #include "cmuip_root:[syslib]time.h" #include "cmuip_root:[syslib]socket.h" #include #include #include #include "cmuip_root:[syslib]ioctl.h" #define TCP_INCLUDES_DONE #endif /* CMU_TCP */ #ifdef SOCKETSHR_TCP #include #include #include #include #include #include #include #include "socketshr_library:socketshr.h" #include "socketshr_library:ioctl.h" #define TCP_INCLUDES_DONE #endif /* SOCKETSHR_TCP */ #ifdef WIN_TCP #include #include #include #include #include #include #include #ifndef NO_IOCTL #include #endif /* !NO_IOCTL */ #define TCP_INCLUDES_DONE #endif /* WIN_TCP */ #ifndef TCP_INCLUDES_DONE #include #include #include #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 #include #include #include #include #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 /* defines GLOBALREF and GLOBALDEF for GNUC on VMS */ #endif /* __GNUC__ */ #endif /* VAXC && !DECC */ #include #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 #include #include #include #include #include #include #ifdef word #undef word #endif /* word */ #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 #endif /* HAVE_UNISTD_H */ #ifdef HAVE_SYS_FILIO_H #include #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 #ifdef HAVE_STRING_H #include #endif /* HAVE_STRING_H */ #include /* independent */ #ifdef __MVS__ /* S/390 -- gil -- 1361 */ #include #endif /* __MVS__ */ #ifdef SCO #include #include #endif /* SCO */ #if defined(AIX) || defined(SVR4) #include #endif /* AIX || SVR4 */ #include /* independent */ #include #ifndef __MVS__ /* S/390 -- gil -- 1373 */ #include #endif /* __MVS__ */ #include /* 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 #include #include #include #include #ifndef MERGE #define MERGE #include #undef MERGE #else #include #endif /* !MERGE */ #ifndef USE_DIRENT #define USE_DIRENT /* sys V style directory open */ #endif /* USE_DIRENT */ #include #endif /* ISC */ /* Directory reading stuff - BSD or SYS V */ #ifdef HAVE_CONFIG_H # ifdef HAVE_LIMITS_H # include # 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(__MINGW32__)) #define DECL_SYS_ERRLIST 1 #endif #endif /* !HAVE_CONFIG_H */ #ifdef HAVE_LIBINTL_H #include #endif #ifdef HAVE_LIBGETTEXT_H #include #endif #define N_(s) s #ifndef HAVE_GETTEXT #define gettext(s) s #endif /* Defaults ======== INCLUDE FILES FOR TCP */ #ifndef TCP_INCLUDES_DONE #ifndef NO_IOCTL #include /* EJB */ #endif /* !NO_IOCTL */ #include #include #ifdef HAVE_ARPA_INET_H #include /* Must be after netinet/in.h */ #endif #include #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 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 */ /* * 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(HAVE_GAI_STRERROR) && defined(ENABLE_IPV6) # define INET6 #endif /* HAVE_GETADDRINFO && HAVE_GAI_STRERROR && ENABLE_IPV6 */ #if !defined(__MINGW32__) #ifdef INET6 typedef struct sockaddr_storage SockA; /* See netinet/in.h */ #else typedef struct sockaddr_in SockA; /* See netinet/in.h */ #endif /* INET6 */ #endif #ifdef INET6 #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))) #endif #define SOCKADDR_LEN(soc_address) SA_LEN((struct sockaddr *)&soc_address) #endif /* SIN6_LEN */ #else #define SOCKADDR_LEN(soc_address) sizeof(soc_address) #endif /* INET6 */ #ifndef MAXHOSTNAMELEN #define MAXHOSTNAMELEN 64 /* Arbitrary limit */ #endif /* MAXHOSTNAMELEN */ #endif /* TCP_H */