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Handle DNS::NONE requests (ignore)

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dmiller
2025-06-09 17:33:59 +00:00
parent d99ae442c9
commit 2216e3856e
1 changed files with 18 additions and 3 deletions
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21
nmap_dns.cc
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@@ -548,6 +548,8 @@ static void put_dns_packet_on_wire(request *req) {
plen = DNS::Factory::buildReverseRequest(req->id, reqt.ssv.front(), packet, maxlen); plen = DNS::Factory::buildReverseRequest(req->id, reqt.ssv.front(), packet, maxlen);
break; break;
default: default:
// Unhandled type. Should have been dealt with earlier.
assert(false);
break; break;
} }
@@ -1333,7 +1335,13 @@ static void nmap_mass_dns_core(DNS::Request *requests, int num_requests) {
continue; continue;
} }
break; break;
case DNS::NONE:
// This is okay, just don't make a request.
continue;
break;
default: default:
error("%s: Unknown DNS request type %s\n", __func__, reqt.repr());
continue;
break; break;
} }
@@ -1451,16 +1459,23 @@ static void nmap_mass_dns_core(DNS::Request *requests, int num_requests) {
static void nmap_system_dns_core(DNS::Request requests[], int num_requests) { static void nmap_system_dns_core(DNS::Request requests[], int num_requests) {
char spmobuf[1024]; char spmobuf[1024];
stat_actual = num_requests; stat_actual = 0;
for (int i=0; i < num_requests; i++) {
if (requests[i].type != DNS::NONE) {
stat_actual++;
}
}
Snprintf(spmobuf, sizeof(spmobuf), "System DNS resolution of %d host%s.", stat_actual, stat_actual-1 ? "s" : ""); Snprintf(spmobuf, sizeof(spmobuf), "System DNS resolution of %d host%s.", stat_actual, stat_actual-1 ? "s" : "");
SPM = new ScanProgressMeter(spmobuf); SPM = new ScanProgressMeter(spmobuf);
for (int i=0; i < num_requests; i++) for (int i=0; i < num_requests; i++)
{ {
if (keyWasPressed()) if (keyWasPressed())
SPM->printStats((double) i / stat_actual, NULL); SPM->printStats((double) i / num_requests, NULL);
if (system_resolve(requests[i])) { DNS::Request &r = requests[i];
if (r.type != DNS::NONE && system_resolve(r)) {
stat_ok++; stat_ok++;
} }
} }