PenTest/nmap
1
0
Fork 0
mirror of https://github.com/nmap/nmap.git synced 2026-01-29 01:29:22 +00:00
Code Issues Projects Releases Wiki Activity

Update an obsolete traceroute comment and fix some indentation.

Browse Source
This commit is contained in:
david
2009-07-29 01:29:55 +00:00
parent 7194d27631
commit f39df29350
1 changed files with 3 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
traceroute.cc
View File

@@ -526,20 +526,8 @@ Traceroute::readTraceResponses () {
return finished ();
}
/* Estimate how many hops away a host is by actively probing it.
*
* If the scan protocol isn't udp we guesstimate how many hops away
* the target is by sending a probe to an open or closed port and
* calculating a possible hop distance based on the returned ttl
*
* If the scan protocol is udp then we send a probe to a closed,
* filtered or open port. Closed ports are more accurate because
* we can exactly determine the hop distance based on the packet
* return in the icmp port unreachable's payload. Open ports use
* the same estimation method as tcp probes. Filtered ports are
* only used as a last resort, although the hop distance guess is
* accurate, the filtered response may not be from the destination
* target, it may be from a node filtering the target */
/* Estimate how many hops away a host is by actively probing it. The hop
* distance is set by setHopDistance from readTraceResponses. */
inline void
Traceroute::sendTTLProbes (vector < Target * >&Targets, vector < Target * >&valid_targets) {
Target *t = NULL;
@@ -585,7 +573,7 @@ Traceroute::sendTTLProbes (vector < Target * >&Targets, vector < Target * >&vali
* we don't need to calculate it */
if (t->distance != -1) {
tg->setHopDistance (0, t->distance);
} else {
} else {
tp = new TraceProbe (t->v4hostip ()->s_addr,
t->v4sourceip ()->s_addr, sport, probe);
tp->setProbeType (PROBE_TTL);