\ socket interface
\ Copyright (C) 1998,2000,2003,2005 Free Software Foundation, Inc.
\ This file is part of Gforth.
\ Gforth is free software; you can redistribute it and/or
\ modify it under the terms of the GNU General Public License
\ as published by the Free Software Foundation; either version 2
\ of the License, or (at your option) any later version.
\ This program is distributed in the hope that it will be useful,
\ but WITHOUT ANY WARRANTY; without even the implied warranty of
\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\ GNU General Public License for more details.
\ You should have received a copy of the GNU General Public License
\ along with this program; if not, write to the Free Software
\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
require lib.fs
[IFUNDEF] libc
s" os-type" environment? [IF]
2dup s" linux-gnu" str= [IF] 2drop
library libc libc.so.6
[ELSE] 2dup s" cygwin" str= [IF] 2drop
library libc cygwin1.dll
[ELSE] s" bsd" search nip nip [IF]
library libc libc.so
[THEN]
[THEN]
[THEN]
[THEN]
[THEN]
libc gethostbyname ptr (ptr) gethostbyname ( name -- hostent )
libc socket int int int (int) socket ( class type proto -- fd )
libc connect int ptr int (int) connect ( fd sock size -- err )
libc fdopen int ptr (ptr) fdopen ( fd fileattr -- file )
libc htonl int (int) htonl ( x -- x' )
libc htons int (int) htons ( x -- x' )
libc ntohl int (int) ntohl ( x -- x' )
4 4 2Constant int%
2 2 2Constant short%
struct
cell% field h_name
cell% field h_aliases
int% field h_addrtype
int% field h_length
cell% field h_addr_list
end-struct hostent
struct
short% field family
short% field port
int% field sin_addr
cell% 2* field padding
end-struct sockaddr_in
Create sockaddr-tmp
sockaddr-tmp sockaddr_in %size dup allot erase
: c-string ( addr u -- addr' )
tuck pad swap move pad + 0 swap c! pad ;
: host>addr ( addr u -- x )
\G converts a internet name into a IPv4 address
\G the resulting address is in network byte order
c-string gethostbyname dup 0= abort" address not found"
h_addr_list @ @ @ ;
2 Constant PF_INET
1 Constant SOCK_STREAM
6 Constant IPPROTO_TCP
: new-socket ( -- socket )
PF_INET SOCK_STREAM IPPROTO_TCP socket
dup 0<= abort" no free socket" ;
: >inetaddr ( ip port sockaddr -- ) >r
r@ sockaddr_in %size erase
PF_INET r@ family w!
htons r@ port w!
htonl r> sin_addr l! ;
: open-socket ( addr u port -- fid )
-rot host>addr swap sockaddr-tmp >inetaddr
new-socket >r
r@ sockaddr-tmp sockaddr_in %size connect 0< abort" can't connect"
r> s" w+" c-string fdopen ;
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>