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/* ISC license. */
#include <skalibs/uint16.h>
#include <s6-dns/s6dns.h>
#include "shibari-cache-internal.h"
int dns_newquery (uint8_t source, uint16_t i, char const *ip, uint16_t port, char const *buf, uint16_t len)
{
dcache_key_t data ;
s6dns_message_header_t hdr ;
s6dns_message_counts_t counts ;
s6dns_domain_t name ;
unsigned int pos ;
unsigned int rcode ;
uint16_t qtype ;
char key[257] ;
if (!s6dns_message_parse_init(&hdr, &counts, buf, len, &pos)) return 1 ;
if (hdr.opcode) { rcode = 4 ; goto err ; }
if (!hdr.rd) { rcode = 1 ; goto err ; }
if (!s6dns_message_parse_question(&counts, &name, &qtype, buf, len, &pos)
|| !s6dns_domain_encode(&name))
{
rcode = errno == ENOTSUP ? 4 : 1 ;
goto answer ;
}
if (cache_search(&name, qtype, &data)) goto got ;
return 1 ;
answer:
return 1 ;
err:
got :
return 1 ;
}
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