QB64.org Forum

Active Forums => Programs => Topic started by: KingRat on October 25, 2018, 01:35:08 pm

Title: Simple Port Scanner
Post by: KingRat on October 25, 2018, 01:35:08 pm

I wrote this little code while I was reading the QB64 Wiki, just to figure out the _OPENCLIENT basics.

Code: QB64: [Select]

1. 'Simple scanner
2. 'This could be a little faster :/
3. FOR port = 0 TO 65535
4.     port$ = STR$(port)
5.     _TITLE ("Scanning port " + port$ + " of 35535")
6.     p = _OPENCLIENT("TCP/IP:" + port$ + ":localhost")
7.     IF p THEN
8.         PRINT port$ + " - listening!"
9.     END IF
10.     CLOSE p
11. NEXT port
12.  
13.  

Title: Re: Simple Port Scanner
Post by: KingRat on October 25, 2018, 01:39:26 pm

Some considerations.

Im really excited about QB64, but I have to admit that this simple code became very slow, and TaskManager shows about 33 megs of RAM while execution.

Some tips for QB64 optimization?

Thanks!

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