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#include <poll.h>
#include "milliseconds.h"
#include "byte.h"
#include "e.h"
#include "dns.h"
struct dns_transmit dns_resolve_tx = {0};
int dns_resolve(const unsigned char *q, const unsigned char qtype[2]) {
long long deadline, stamp, timeout;
unsigned char servers[256];
struct pollfd x[1];
int r;
if (dns_resolvconfip(servers) == -1) return -1;
if (dns_transmit_start(&dns_resolve_tx, servers, 1, q, qtype, 0) == -1) return -1;
for (;;) {
stamp = milliseconds();
deadline = 120000 + stamp;;
dns_transmit_io(&dns_resolve_tx, x, &deadline);
timeout = deadline - stamp;
if (timeout <= 0) timeout = 20;
poll(x, 1, timeout);
r = dns_transmit_get(&dns_resolve_tx, x, stamp);
if (r == -1) return -1;
if (r == 1) return 0;
}
}
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