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Annotation of gforth/unix/socket.fs, revision 1.1

1.1     ! pazsan      1: \ socket interface
        !             2: 
        !             3: \ Copyright (C) 1998 Free Software Foundation, Inc.
        !             4: 
        !             5: \ This file is part of Gforth.
        !             6: 
        !             7: \ Gforth is free software; you can redistribute it and/or
        !             8: \ modify it under the terms of the GNU General Public License
        !             9: \ as published by the Free Software Foundation; either version 2
        !            10: \ of the License, or (at your option) any later version.
        !            11: 
        !            12: \ This program is distributed in the hope that it will be useful,
        !            13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            15: \ GNU General Public License for more details.
        !            16: 
        !            17: \ You should have received a copy of the GNU General Public License
        !            18: \ along with this program; if not, write to the Free Software
        !            19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
        !            20: 
        !            21: require lib.fs
        !            22: [IFUNDEF] libc  library libc libc.so.6  [THEN]
        !            23: 
        !            24: 1 (int) libc gethostbyname gethostbyname ( name -- hostent )
        !            25: 3 (int) libc socket socket ( class type proto -- fd )
        !            26: 3 (int) libc connect connect ( fd sock size -- err )
        !            27: 2 (int) libc fdopen fdopen ( fd fileattr -- file )
        !            28: 1 (int) libc htonl htonl ( x -- x' )
        !            29: 
        !            30: struct
        !            31:     cell% field h_name
        !            32:     cell% field h_aliases
        !            33:     cell% field h_addrtype
        !            34:     cell% field h_length
        !            35:     cell% field h_addr_list
        !            36: end-struct hostent
        !            37: 
        !            38: struct
        !            39:     cell% field family+port
        !            40:     cell% field sin_addr
        !            41:     cell% 2* field padding
        !            42: end-struct sockaddr_in
        !            43: 
        !            44: Create sockaddr-tmp
        !            45: sockaddr-tmp sockaddr_in %size dup allot erase
        !            46: 
        !            47: : c-string ( addr u -- addr' )
        !            48:     tuck pad swap move pad + 0 swap c! pad ;
        !            49: 
        !            50: : host>addr ( addr u -- x )
        !            51:     \G converts a internet name into a IPv4 address
        !            52:     \G the resulting address is in network byte order
        !            53:     c-string gethostbyname dup 0= abort" address not found"
        !            54:     h_addr_list @ @ @ ;
        !            55: 
        !            56: 2 Constant PF_INET
        !            57: 1 Constant SOCK_STREAM
        !            58: 6 Constant IPPROTO_TCP
        !            59: 
        !            60: : open-socket ( addr u port -- fid )
        !            61:     htonl PF_INET [ base c@ 0= ] [IF] $10 lshift [THEN]
        !            62:     or sockaddr-tmp family+port !
        !            63:     host>addr sockaddr-tmp sin_addr !
        !            64:     PF_INET SOCK_STREAM IPPROTO_TCP socket
        !            65:     dup 0<= abort" no free socket" >r
        !            66:     r@ sockaddr-tmp $10 connect 0< abort" can't connect"
        !            67:     r> s" w+" c-string fdopen ;