Allow the max concurrent connections setting to be edited here

Also, disable the QWK packet creation timeout edit when QWK packet
download support is disabled.

src/sbbs3/ctrl/FtpCfgDlgUnit.cpp

@@ -69,6 +69,7 @@ void __fastcall TFtpCfgDlg::FormShow(TObject *Sender)
     PasvIpLookupCheckBox->Checked=MainForm->ftp_startup.options&FTP_OPT_LOOKUP_PASV_IP;
 	PasvPortLowEdit->Text=AnsiString((int)MainForm->ftp_startup.pasv_port_low);
   	PasvPortHighEdit->Text=AnsiString((int)MainForm->ftp_startup.pasv_port_high);
+    MaxConConEdit->Text = AnsiString((int)MainForm->ftp_startup.max_concurrent_connections);
 
     IndexFileNameEdit->Text=AnsiString(MainForm->ftp_startup.index_file_name);
     AnswerSoundEdit->Text=AnsiString(MainForm->ftp_startup.answer_sound);
@@ -87,6 +88,8 @@ void __fastcall TFtpCfgDlg::FormShow(TObject *Sender)
 	AutoIndexCheckBox->Checked=MainForm->ftp_startup.options&FTP_OPT_INDEX_FILE;
 	AutoIndexCheckBoxClick(Sender);
     PasvIpLookupCheckBoxClick(Sender);
+    QwkTimeoutEdit->Enabled = AllowQWKCheckBox->Checked;
+    QwkTimeoutLabel->Enabled = AllowQWKCheckBox->Checked;
 
     PageControl->ActivePage=GeneralTabSheet;
 }
@@ -122,6 +125,7 @@ void __fastcall TFtpCfgDlg::OKBtnClick(TObject *Sender)
     MainForm->ftp_startup.max_inactivity=MaxInactivityEdit->Text.ToIntDef(FTP_DEFAULT_MAX_INACTIVITY);
     MainForm->ftp_startup.qwk_timeout=QwkTimeoutEdit->Text.ToIntDef(FTP_DEFAULT_QWK_TIMEOUT);
     MainForm->ftp_startup.port=PortEdit->Text.ToIntDef(IPPORT_FTP);
+    MainForm->ftp_startup.max_concurrent_connections = MaxConConEdit->Text.ToIntDef(0);
     MainForm->FtpAutoStart=AutoStartCheckBox->Checked;
     MainForm->FtpLogFile=LogFileCheckBox->Checked;
 
@@ -220,3 +224,11 @@ void __fastcall TFtpCfgDlg::PasvIpLookupCheckBoxClick(TObject *Sender)
 }
 //---------------------------------------------------------------------------
 
+
+void __fastcall TFtpCfgDlg::AllowQWKCheckBoxClick(TObject *Sender)
+{
+    QwkTimeoutEdit->Enabled = AllowQWKCheckBox->Checked;
+    QwkTimeoutLabel->Enabled = AllowQWKCheckBox->Checked;
+}
+//---------------------------------------------------------------------------
+

src/sbbs3/ctrl/FtpCfgDlgUnit.dfm

 object FtpCfgDlg: TFtpCfgDlg
-  Left = 837
-  Top = 423
+  Left = 1282
+  Top = 534
   BorderStyle = bsDialog
   Caption = 'FTP Server Configuration'
   ClientHeight = 245
@@ -58,13 +58,21 @@ object FtpCfgDlg: TFtpCfgDlg
         Caption = 'Interfaces (IPs)'
       end
       object QwkTimeoutLabel: TLabel
-        Left = 7
+        Left = 148
         Top = 138
         Width = 78
         Height = 20
         AutoSize = False
         Caption = 'QWK Timeout'
       end
+      object MaxConConLabel: TLabel
+        Left = 7
+        Top = 138
+        Width = 85
+        Height = 19
+        AutoSize = False
+        Caption = 'Max Con-Conn'
+      end
       object AutoStartCheckBox: TCheckBox
         Left = 7
         Top = 10
@@ -122,18 +130,19 @@ object FtpCfgDlg: TFtpCfgDlg
       end
       object AllowQWKCheckBox: TCheckBox
         Left = 148
-        Top = 60
+        Top = 109
         Width = 119
         Height = 20
         Hint = 'Allow QWK packet transfers'
         Caption = 'QWK Packets'
         ParentShowHint = False
         ShowHint = True
-        TabOrder = 7
+        TabOrder = 9
+        OnClick = AllowQWKCheckBoxClick
       end
       object LocalFileSysCheckBox: TCheckBox
         Left = 148
-        Top = 86
+        Top = 62
         Width = 119
         Height = 20
         Hint = 
@@ -142,7 +151,7 @@ object FtpCfgDlg: TFtpCfgDlg
         Caption = 'Local File System'
         ParentShowHint = False
         ShowHint = True
-        TabOrder = 8
+        TabOrder = 7
       end
       object HostnameCheckBox: TCheckBox
         Left = 148
@@ -157,23 +166,33 @@ object FtpCfgDlg: TFtpCfgDlg
       end
       object DirFilesCheckBox: TCheckBox
         Left = 148
-        Top = 110
+        Top = 86
         Width = 125
         Height = 20
         Hint = 'Allow users access to files in directory, but not in database'
         Caption = 'Directory File Access'
         ParentShowHint = False
         ShowHint = True
-        TabOrder = 9
+        TabOrder = 8
       end
       object QwkTimeoutEdit: TEdit
-        Left = 85
+        Left = 223
         Top = 138
         Width = 39
         Height = 21
         Hint = 'Maximum number of seconds before QWK packet creation timeout'
         ParentShowHint = False
         ShowHint = True
+        TabOrder = 10
+      end
+      object MaxConConEdit: TEdit
+        Left = 85
+        Top = 138
+        Width = 39
+        Height = 21
+        Hint = 'Maximum Concurrent Connections from same IP (0=unlimited)'
+        ParentShowHint = False
+        ShowHint = True
         TabOrder = 6
       end
     end

src/sbbs3/ctrl/FtpCfgDlgUnit.h

@@ -86,6 +86,8 @@ __published:
     TEdit *PasvPortHighEdit;
     TLabel *PasvPortThroughLabel;
     TCheckBox *PasvIpLookupCheckBox;
+    TLabel *MaxConConLabel;
+    TEdit *MaxConConEdit;
 	void __fastcall FormShow(TObject *Sender);
 	void __fastcall OKBtnClick(TObject *Sender);
 	void __fastcall AnswerSoundButtonClick(TObject *Sender);
@@ -93,6 +95,7 @@ __published:
 	void __fastcall AutoIndexCheckBoxClick(TObject *Sender);
     void __fastcall HackAttemptSoundButtonClick(TObject *Sender);
     void __fastcall PasvIpLookupCheckBoxClick(TObject *Sender);
+    void __fastcall AllowQWKCheckBoxClick(TObject *Sender);
 private:
 public:
 	virtual __fastcall TFtpCfgDlg(TComponent* AOwner);

src/sbbs3/ctrl/MailCfgDlgUnit.dfm

 object MailCfgDlg: TMailCfgDlg
-  Left = 1274
-  Top = 822
+  Left = 1214
+  Top = 710
   BorderStyle = bsDialog
   Caption = 'Mail Server Configuration'
   ClientHeight = 246

src/sbbs3/ctrl/MainFormUnit.dfm

 object MainForm: TMainForm
-  Left = 760
-  Top = 266
+  Left = 733
+  Top = 639
   Width = 793
   Height = 398
   Caption = 'Synchronet Control Panel'