From df8ebd2525aaac2a2251ce02e0b08ecbfec80ad9 Mon Sep 17 00:00:00 2001 From: evilsocket Date: Sun, 21 Apr 2019 20:53:27 +0200 Subject: [PATCH] misc: small fix or general refactoring i did not bother commenting --- modules/syn_scan/syn_scan.go | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/modules/syn_scan/syn_scan.go b/modules/syn_scan/syn_scan.go index 73bdd446..3f12464c 100644 --- a/modules/syn_scan/syn_scan.go +++ b/modules/syn_scan/syn_scan.go @@ -113,10 +113,13 @@ func (mod *SynScanner) Author() string { func (mod *SynScanner) Configure() (err error) { if mod.Running() { return session.ErrAlreadyStarted(mod.Name()) - } else if mod.handle, err = pcap.OpenLive(mod.Session.Interface.Name(), 65536, true, pcap.BlockForever); err != nil { - return err - } else if err = mod.handle.SetBPFFilter(fmt.Sprintf("tcp dst port %d", synSourcePort)); err != nil { - return err + } + if mod.handle == nil { + if mod.handle, err = pcap.OpenLive(mod.Session.Interface.Name(), 65536, true, pcap.BlockForever); err != nil { + return err + } else if err = mod.handle.SetBPFFilter(fmt.Sprintf("tcp dst port %d", synSourcePort)); err != nil { + return err + } } return nil } @@ -204,7 +207,6 @@ func (mod *SynScanner) synScan() error { mod.State.Store("progress", 0.0) mod.State.Store("scanning", &mod.addresses) mod.packets <- nil - mod.handle.Close() }) mod.stats.openPorts = 0