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Merge branch 'master' of git://factorcode.org/git/factor

db4
Matthew Willis 2008-05-30 09:29:03 -07:00
parent 4f9c3d720a 9fca06209a
commit 394b14d501
2 changed files with 91 additions and 4 deletions
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4
core/generator/fixup/fixup-docs.factor
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@ -5,10 +5,6 @@ HELP: frame-required
{ $values { "n" "a non-negative integer" } }
{ $description "Notify the code generator that the currently compiling code block needs a stack frame with room for at least " { $snippet "n" } " parameters." } ;
HELP: (rel-fixup)
{ $values { "arg" integer } { "class" "a relocation class" } { "type" "a relocation type" } { "offset" integer } { "byte-array" byte-array } }
{ $description "Creates a relocation instruction for the VM's runtime compiled code linker." } ;
HELP: add-literal
{ $values { "obj" object } { "n" integer } }
{ $description "Adds a literal to the " { $link literal-table } ", if it is not already there, and outputs the index of the literal in the table. This literal can then be used as an argument for a " { $link rt-literal } " relocation with " { $link rel-fixup } "." } ;

91
extra/dns/forwarding/forwarding.factor Normal file
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@ -0,0 +1,91 @@
USING: kernel
combinators
vectors
io.sockets
accessors
newfx
dns dns.cache ;
IN: dns.forwarding
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! DNS server - caching, forwarding
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: (socket) ( -- vec ) V{ f } ;
: socket ( -- socket ) (socket) 1st ;
: init-socket ( -- ) f 5353 <inet4> <datagram> 0 (socket) as-mutate ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: (upstream-server) ( -- vec ) V{ f } ;
: upstream-server ( -- ip ) (upstream-server) 1st ;
: set-upstream-server ( ip -- ) 0 (upstream-server) as-mutate ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: query->answer/cache ( query -- rrs/NX/f )
{
{ [ dup type>> CNAME = ] [ cache-get* ] }
{
[ dup clone CNAME >>type cache-get* vector? ]
[
dup clone CNAME >>type cache-get* 1st ! query rr/cname
dup rdata>> ! query rr/cname cname
>r swap clone r> ! rr/cname query cname
>>name ! rr/cname query
query->answer/cache ! rr/cname rrs/NX/f
{
{ [ dup vector? ] [ clone push-on ] }
{ [ dup NX = ] [ nip ] }
{ [ dup f = ] [ nip ] }
}
cond
]
}
{ [ t ] [ cache-get* ] }
}
cond ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: answer-from-cache ( message -- message/f )
dup message-query ! message query
dup query->answer/cache ! message query rrs/NX/f
{
{ [ dup f = ] [ 3drop f ] }
{ [ dup NX = ] [ 2drop NAME-ERROR >>rcode ] }
{ [ t ] [ nip >>answer-section ] }
}
cond ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: answer-from-server ( message -- message )
upstream-server ask-server
cache-message ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: find-answer ( message -- message )
dup answer-from-cache dup
[ nip ]
[ drop answer-from-server ]
if ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: loop ( -- )
socket receive ! byte-array addr-spec
swap ! addr-spec byte-array
parse-message ! addr-spec message
find-answer ! addr-spec message
message->ba ! addr-spec byte-array
swap ! byte-array addr-spec
socket send
loop ;