Coverity fixes: 280374, 313611, 313648, 313649, and 314720.

eeschema/tools/ee_grid_helper.cpp

@@ -53,6 +53,7 @@ EE_GRID_HELPER::EE_GRID_HELPER( TOOL_MANAGER* aToolMgr ) :
 {
     m_enableSnap = true;
     m_enableSnapLine = true;
+    m_enableGrid = true;
     m_snapItem = nullptr;
     KIGFX::VIEW* view = m_toolMgr->GetView();
 

pcbnew/drc/drc_test_provider_diff_pair_coupling.cpp

@@ -43,8 +43,8 @@
     - DRCE_TOO_MANY_VIAS
     Todo:
     - arc support.
-    - improve recognition of coupled segments (now anything that's parallel is considered coupled, causing
+    - improve recognition of coupled segments (now anything that's parallel is considered
-      DRC errors on meanders)
+      coupled, causing DRC errors on meanders)
 */
 
 namespace test {
@@ -169,7 +169,10 @@ struct DIFF_PAIR_COUPLED_SEGMENTS
 
     DIFF_PAIR_COUPLED_SEGMENTS() :
         parentN( nullptr ),
-        parentP( nullptr )
+        parentP( nullptr ),
+        computedGap( 0 ),
+        layer( UNDEFINED_LAYER ),
+        couplingOK( false )
     {}
 };
 
@@ -349,7 +352,8 @@ bool test::DRC_TEST_PROVIDER_DIFF_PAIR_COUPLING::Run()
         wxString nameP = niP->GetNetname();
         wxString nameN = niN->GetNetname();
 
-        reportAux( wxString::Format( "Rule '%s', DP: (+) %s - (-) %s", it.first.parentRule->m_Name, nameP, nameN ) );
+        reportAux( wxString::Format( "Rule '%s', DP: (+) %s - (-) %s",
+                                     it.first.parentRule->m_Name, nameP, nameN ) );
 
         extractDiffPairCoupledItems( it.second, copperTree );
 
@@ -359,8 +363,10 @@ bool test::DRC_TEST_PROVIDER_DIFF_PAIR_COUPLING::Run()
 
         drc_dbg(10, "       coupled prims : %d\n", (int) it.second.coupled.size() );
 
-        OPT<DRC_CONSTRAINT> gapConstraint = it.first.parentRule->FindConstraint( DIFF_PAIR_GAP_CONSTRAINT );
+        OPT<DRC_CONSTRAINT> gapConstraint =
-        OPT<DRC_CONSTRAINT> maxUncoupledConstraint = it.first.parentRule->FindConstraint( DIFF_PAIR_MAX_UNCOUPLED_CONSTRAINT );
+                it.first.parentRule->FindConstraint( DIFF_PAIR_GAP_CONSTRAINT );
+        OPT<DRC_CONSTRAINT> maxUncoupledConstraint =
+                it.first.parentRule->FindConstraint( DIFF_PAIR_MAX_UNCOUPLED_CONSTRAINT );
 
         for( auto& item : it.second.itemsN )
         {
@@ -401,7 +407,8 @@ bool test::DRC_TEST_PROVIDER_DIFF_PAIR_COUPLING::Run()
                 overlay->Line( cpair.coupledN );
             }
 
-            drc_dbg(10, "               len %d gap %d l %d\n", length, gap, cpair.parentP->GetLayer() );
+            drc_dbg( 10, "               len %d gap %d l %d\n", length, gap,
+                     cpair.parentP->GetLayer() );
 
             if( gapConstraint )
             {
@@ -412,7 +419,6 @@ bool test::DRC_TEST_PROVIDER_DIFF_PAIR_COUPLING::Run()
                 if ( val.HasMax() && gap > val.Max() )
                     insideRange = false;
 
-
 //                if(val.HasMin() && val.HasMax() )
   //                  drc_dbg(10, "Vmin %d vmax %d\n", val.Min(), val.Max() );
 
@@ -471,7 +477,8 @@ bool test::DRC_TEST_PROVIDER_DIFF_PAIR_COUPLING::Run()
                     auto val = gapConstraint->GetValue();
                     auto drcItem = DRC_ITEM::Create( DRCE_DIFF_PAIR_GAP_OUT_OF_RANGE );
 
-                    m_msg = drcItem->GetErrorText() + " (" + gapConstraint->GetParentRule()->m_Name + " ";
+                    m_msg = drcItem->GetErrorText() + " (" +
+                            gapConstraint->GetParentRule()->m_Name + " ";
 
                     if( val.HasMin() )
                         m_msg += wxString::Format( _( "minimum gap: %s; " ),
@@ -481,7 +488,6 @@ bool test::DRC_TEST_PROVIDER_DIFF_PAIR_COUPLING::Run()
                         m_msg += wxString::Format( _( "maximum gap: %s; " ),
                                                    MessageTextFromValue( userUnits(), val.Max() ) );
 
-
                     m_msg += wxString::Format( _( "actual: %s)" ),
                         MessageTextFromValue( userUnits(), cpair.computedGap ) );
 

pcbnew/router/router_tool.cpp

@@ -116,7 +116,8 @@ static const TOOL_ACTION ACT_PlaceMicroVia( "pcbnew.InteractiveRouter.PlaceMicro
         _( "Place Microvia" ), _( "Adds a microvia at the end of currently routed track." ),
         via_microvia_xpm, AF_NONE, (void*) VIA_ACTION_FLAGS::MICROVIA );
 
-static const TOOL_ACTION ACT_SelLayerAndPlaceThroughVia( "pcbnew.InteractiveRouter.SelLayerAndPlaceVia",
+static const TOOL_ACTION ACT_SelLayerAndPlaceThroughVia(
+        "pcbnew.InteractiveRouter.SelLayerAndPlaceVia",
         AS_CONTEXT,
         '<', LEGACY_HK_NAME( "Select Layer and Add Through Via" ),
         _( "Select Layer and Place Through Via..." ),
@@ -124,7 +125,8 @@ static const TOOL_ACTION ACT_SelLayerAndPlaceThroughVia( "pcbnew.InteractiveRout
         select_w_layer_xpm, AF_NONE,
         (void*) ( VIA_ACTION_FLAGS::VIA | VIA_ACTION_FLAGS::SELECT_LAYER ) );
 
-static const TOOL_ACTION ACT_SelLayerAndPlaceBlindVia( "pcbnew.InteractiveRouter.SelLayerAndPlaceBlindVia",
+static const TOOL_ACTION ACT_SelLayerAndPlaceBlindVia(
+        "pcbnew.InteractiveRouter.SelLayerAndPlaceBlindVia",
         AS_CONTEXT,
         MD_ALT + '<', LEGACY_HK_NAME( "Select Layer and Add Blind/Buried Via" ),
         _( "Select Layer and Place Blind/Buried Via..." ),
@@ -488,6 +490,7 @@ void ROUTER_TOOL::handleCommonEvents( const TOOL_EVENT& aEvent )
         case '0':
         {
             auto logger = m_router->Logger();
+
             if( ! logger )
                 return;
 
@@ -502,17 +505,18 @@ void ROUTER_TOOL::handleCommonEvents( const TOOL_EVENT& aEvent )
                 if( evt.item && evt.item->Parent() )
                     id = evt.item->Parent()->m_Uuid.AsString();
 
-                fprintf(f, "event %d %d %d %s\n", evt.p.x, evt.p.y, evt.type, (const char*) id.c_str() );
+                fprintf( f, "event %d %d %d %s\n", evt.p.x, evt.p.y, evt.type,
+                         (const char*) id.c_str() );
             }
 
-            fclose(f);
+            fclose( f );
 
             // Export as *.kicad_pcb format, using a strategy which is specifically chosen
             // as an example on how it could also be used to send it to the system clipboard.
 
             PCB_IO  pcb_io;
 
-            pcb_io.Save("/tmp/pns.dump", m_iface->GetBoard(), nullptr );
+            pcb_io.Save( "/tmp/pns.dump", m_iface->GetBoard(), nullptr );
 
             break;
         }
@@ -662,6 +666,8 @@ int ROUTER_TOOL::onViaCommand( const TOOL_EVENT& aEvent )
 
 int ROUTER_TOOL::handleLayerSwitch( const TOOL_EVENT& aEvent, bool aForceVia )
 {
+    wxCHECK( m_router, 0 );
+
     if( !IsToolActive() )
         return 0;
 
@@ -747,7 +753,7 @@ int ROUTER_TOOL::handleLayerSwitch( const TOOL_EVENT& aEvent, bool aForceVia )
             targetLayer = frame()->SelectLayer( static_cast<PCB_LAYER_ID>( currentLayer ),
                                                 LSET::AllNonCuMask(), dlgPosition );
 
-            // Reset the cursor to the position where the event occured
+            // Reset the cursor to the position where the event occurred
             controls()->SetCursorPosition( aEvent.HasPosition() ? aEvent.Position() : dlgPosition );
         }
     }
@@ -1010,7 +1016,7 @@ void ROUTER_TOOL::performRouting()
     {
         setCursor();
 
-        // Don't crash if we missed an operation that cancelled routing.
+        // Don't crash if we missed an operation that canceled routing.
         if( !m_router->RoutingInProgress() )
         {
             if( evt->IsCancelInteractive() )

pcbnew/tools/edit_tool.cpp

@@ -692,6 +692,8 @@ int EDIT_TOOL::ChangeTrackWidth( const TOOL_EVENT& aEvent )
         {
             TRACK* track = dynamic_cast<TRACK*>( item );
 
+            wxCHECK( track, 0 );
+
             m_commit->Modify( track );
 
             int new_width = board()->GetDesignSettings().GetCurrentTrackWidth();

utils/kicad2step/pcb/3d_resolver.cpp

@@ -2,6 +2,7 @@
  * This program source code file is part kicad2mcad
  *
  * Copyright (C) 2015-2016 Cirilo Bernardo <cirilo.bernardo@gmail.com>
+ * Copyright (C) 2020 KiCad Developers, see AUTHORS.txt for contributors.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -1069,7 +1070,7 @@ static bool getHollerith( const std::string& aString, size_t& aIndex, wxString&
         i2 += nchars;
     }
 
-    if( aString[i2] != '"' )
+    if( i2 >= aString.size() || aString[i2] != '"' )
     {
         std::ostringstream ostr;
         ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";