Annotation of gforth/unix/socket.fs, revision 1.2

1.1       pazsan      1: \ socket interface
                      2: 
1.2     ! anton       3: \ Copyright (C) 1998,2000 Free Software Foundation, Inc.
1.1       pazsan      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 ;

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