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add "-n" option to disable reverse lookups

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This commit is contained in:
Babak Farrokhi 2016-04-13 20:50:23 +04:30
parent d90cc4a8d5
commit 09a67904b1
Signed by: farrokhi
GPG Key ID: 6B267AD85D632E9A
1 changed files with 18 additions and 11 deletions
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11
dnstraceroute.py
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@ -120,10 +120,11 @@ def main():
dest_port = 53
hops = 0
as_lookup = False
should_resolve = True
try:
opts, args = getopt.getopt(sys.argv[1:], "aqhc:s:t:w:p:",
["help", "output=", "count=", "server=", "quiet", "type=", "wait=", "asn", "port"])
opts, args = getopt.getopt(sys.argv[1:], "aqhc:s:t:w:p:n",
["help", "count=", "server=", "quiet", "type=", "wait=", "asn", "port"])
except getopt.GetoptError as err:
# print help information and exit:
print(err) # will print something like "option -a not recognized"
@ -149,6 +150,8 @@ def main():
dnsrecord = a
elif o in ("-p", "--port"):
dest_port = int(a)
elif o in ("-n"):
should_resolve = False
elif o in ("-a", "--asn"):
if has_whois:
as_lookup = True
@ -168,6 +171,7 @@ def main():
ttl = 1
reached = False
if not quiet:
print("%s DNS: %s:%d, hostname: %s, rdatatype: %s" % (__PROGNAME__, dnsserver, dest_port, hostname, dnsrecord))
while True:
@ -234,6 +238,7 @@ def main():
elapsed -= timeout * 1000
if should_resolve:
try:
if curr_addr:
curr_name = socket.gethostbyaddr(curr_addr)[0]
@ -243,6 +248,8 @@ def main():
pass
except:
print("unxpected error: ", sys.exc_info()[0])
else:
curr_name = curr_addr
if curr_addr:
as_name = ""