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dns.resolver: cache-message moved to dns. Also some minor cleanups.

db4
Eduardo Cavazos 2008-05-31 07:42:38 -05:00
parent f66fd9a129
commit f59cc01d9a
1 changed files with 6 additions and 43 deletions
extra/dns/resolver

49
extra/dns/resolver/resolver.factor
View File

@ -6,34 +6,6 @@ IN: dns.resolver
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! Need to cache records even in the case of name error
: cache-message ( message -- message )
dup dup rcode>> NAME-ERROR =
[
[ question-section>> 1st ]
[ authority-section>> [ type>> SOA = ] filter random ttl>> ]
bi
cache-nx
]
[
{
[ answer-section>> cache-add-rrs ]
[ authority-section>> cache-add-rrs ]
[ additional-section>> cache-add-rrs ]
}
cleave
]
if ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! Ask and cache the records
: ask* ( message -- message ) ask cache-message ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: canonical/cache ( name -- name )
dup CNAME IN query boa cache-get dup vector? ! name result ?
[ nip 1st rdata>> ]
@ -43,26 +15,17 @@ IN: dns.resolver
: name->ip/cache ( name -- ip )
canonical/cache
dup A IN query boa cache-get ! name result
{
{
[ dup NX = ]
[ 2drop f ]
{ [ dup NX = ] [ 2drop f ] }
{ [ dup f = ] [ 2drop f ] }
{ [ t ] [ nip random rdata>> ] }
}
{
[ dup f = ]
[ 2drop f ]
}
{
[ t ]
[ nip random rdata>> ]
}
}
cond ;
cond ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: canonical/server ( name -- name )
dup CNAME IN query boa query->message ask* answer-section>>
dup CNAME IN query boa query->message ask cache-message answer-section>>
[ type>> CNAME = ] filter dup empty? not
[ nip 1st rdata>> ]
[ drop ]
@ -70,7 +33,7 @@ IN: dns.resolver
: name->ip/server ( name -- ip )
canonical/server
dup A IN query boa query->message ask* answer-section>>
dup A IN query boa query->message ask cache-message answer-section>>
[ type>> A = ] filter dup empty? not
[ nip random rdata>> ]
[ 2drop f ]