another Port sniffer

[andrewsan13]

If you get tired of reading the code or something is not clear, ask, I will try to answer all your questions

[andrewsan13]

There where regex use for the first time, it works incorrectly. I try to check host, and if "host" looks like a 123.123.123.123 or google.com.ua then "host" is correct, but addresses like a 1.2.3.4.5 pass too, I have no idea, why

[OleksiyRudenko]

There where regex use for the first time, it works incorrectly. I try to check host, and if "host" looks like a 123.123.123.123 or google.com.ua then "host" is correct, but addresses like a 1.2.3.4.5 pass too, I have no idea, why

Regexp returns true when any part of the input matches the pattern.
You may want explicitly indicate both start and end of string. E.g. /foo/ will match "123foo456", while /^foo$/ will match "foo" only.

[andrewsan13]

Done! Check it, please, and tell me if something wrong.

[rekusha]

python temp.py --host i.ua --ports 78-82
Host "i.ua" have no open ports in range 78 to 82

in i.ua port 80 is open

[andrewsan13]

python temp.py --host i.ua --ports 78-82
Host "i.ua" have no open ports in range 78 to 82

in i.ua port 80 is open

time to take answer is 0.3 sec

[rekusha]

python temp.py --host 127.0.0.1 --ports 8900-8902
.
8901 ports are open
^^^^^
your code say 'port open' only if remote server respond on your 'hello' - it's wrong
i.ua don't respond for empty query and your script does not see open ports

python temp.py --host localhost --ports 8900-8902
IP or Domain in wrong format
regexp powerful tool but try 'socket' package from python library