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Merge r5744 from /nmap-exp/david/nmap-massping-migration.

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Add a handler for EACCES on initial connect.
This commit is contained in:
david
2007-08-31 05:02:25 +00:00
parent 8c87b5f34b
commit cde0b41cc0
3 changed files with 46 additions and 33 deletions
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54
scan_engine.cc
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@@ -2438,18 +2438,30 @@ static UltraProbe *sendConnectScanProbe(UltraScanInfo *USI, HostScanStats *hss,
else
ultrascan_port_probe_update(USI, hss, probeI, PORT_OPEN, &USI->now);
probe = NULL;
} else if (connect_errno == EINPROGRESS || connect_errno == EAGAIN) {
USI->gstats->CSI->watchSD(CP->sd);
} else {
int host_state = HOST_UNKNOWN, port_state = PORT_UNKNOWN;
switch(connect_errno) {
case EINPROGRESS:
case EAGAIN:
USI->gstats->CSI->watchSD(CP->sd);
/* This can happen on localhost, successful/failing connection immediately
in non-blocking mode. */
case ECONNREFUSED:
host_state = HOST_UP;
port_state = PORT_CLOSED;
hss->target->reason.reason_id = ER_CONREFUSED;
break;
case ENETUNREACH:
if (o.debugging)
log_write(LOG_STDOUT, "Got ENETUNREACH from %s connect()\n", __func__);
ultrascan_host_probe_update(USI, hss, probeI, HOST_DOWN, &USI->now);
if (o.debugging)
log_write(LOG_STDOUT, "Got ENETUNREACH from %s connect()\n", __func__);
host_state = HOST_DOWN;
hss->target->reason.reason_id = ER_NETUNREACH;
probe = NULL;
break;
case EACCES:
if (o.debugging)
log_write(LOG_STDOUT, "Got EACCES from %s connect()\n", __func__);
host_state = HOST_DOWN;
hss->target->reason.reason_id = ER_ACCES;
break;
default:
if (!connecterror) {
@@ -2457,23 +2469,21 @@ static UltraProbe *sendConnectScanProbe(UltraScanInfo *USI, HostScanStats *hss,
fprintf(stderr, "Strange error from connect (%d):", connect_errno);
fflush(stdout);
fflush(stderr);
perror(""); /*falling through intentionally*/
perror("");
}
case ECONNREFUSED:
/* This can happen on localhost, successful/failing connection immediately
in non-blocking mode. */
if (probe->isPing()) {
ultrascan_ping_update(USI, hss, probeI, &USI->now);
} else if (USI->ping_scan) {
ultrascan_host_probe_update(USI, hss, probeI, HOST_UP, &USI->now);
/* If the host is up, we can forget our other probes. */
hss->destroyAllOutstandingProbes();
} else {
ultrascan_port_probe_update(USI, hss, probeI, PORT_CLOSED, &USI->now);
}
probe = NULL;
break;
host_state = HOST_DOWN;
hss->target->reason.reason_id = ER_UNKNOWN;
}
if (probe->isPing()) {
ultrascan_ping_update(USI, hss, probeI, &USI->now);
} else if (USI->ping_scan && host_state != HOST_UNKNOWN) {
ultrascan_host_probe_update(USI, hss, probeI, host_state, &USI->now);
if (host_state == HOST_UP)
hss->destroyAllOutstandingProbes();
} else if (!USI->ping_scan && port_state != PORT_UNKNOWN) {
ultrascan_port_probe_update(USI, hss, probeI, port_state, &USI->now);
}
probe = NULL;
}
gettimeofday(&USI->now, NULL);
return probe;