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#include "iopause.h"
#include "taia.h"
#include "byte.h"
#include "ip.h"
#include "dnsresolv.h"
/**
* @file dns_resolve.c
* @authors djb, fefe, feh
* @ref ucspi-tcp
* @brief high-level DNS resolve function
*/
struct dns_transmit dns_resolve_tx = {0};
int dns_resolve(const char *q,const char qtype[2])
{
struct taia stamp;
struct taia deadline;
char servers[QUERY_MAXIPLEN];
uint32 scopes[QUERY_MAXNS];
iopause_fd x[1];
int r;
if (dns_resolvconfip(servers,scopes) < 0) return DNS_INT;
if (dns_transmit_start6(&dns_resolve_tx,servers,1,q,qtype,(const char *)V6localnet,scopes) < 0) return DNS_COM;
for (;;) {
taia_now(&stamp);
taia_uint(&deadline,120);
taia_add(&deadline,&deadline,&stamp);
dns_transmit_io(&dns_resolve_tx,x,&deadline);
iopause(x,1,&deadline,&stamp);
r = dns_transmit_get(&dns_resolve_tx,x,&stamp);
if (r < 0) return DNS_COM;
if (r == 1) return 0;
}
}
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