From 78ed876bf48d83c249b4b9923a4209b9e6143032 Mon Sep 17 00:00:00 2001
From: jcarsey <jcarsey@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Fri, 25 Mar 2011 21:06:23 +0000
Subject: [PATCH] remove ASSERT. zero memory allocations. add support for
 virtual devices without driver binding.

add #define protection for the header.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11431 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../UefiHandleParsingLib.c                    | 49 ++++++++++---------
 .../UefiHandleParsingLib.h                    |  7 ++-
 2 files changed, 32 insertions(+), 24 deletions(-)

diff --git a/ShellPkg/Library/UefiHandleParsingLib/UefiHandleParsingLib.c b/ShellPkg/Library/UefiHandleParsingLib/UefiHandleParsingLib.c
index 6b59bfd6ab..012ea39a9a 100644
--- a/ShellPkg/Library/UefiHandleParsingLib/UefiHandleParsingLib.c
+++ b/ShellPkg/Library/UefiHandleParsingLib/UefiHandleParsingLib.c
@@ -1,7 +1,7 @@
 /** @file
   Provides interface to advanced shell functionality for parsing both handle and protocol database.
 
-  Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
   which accompanies this distribution.  The full text of the license may be found at
@@ -265,7 +265,7 @@ DriverEfiVersionProtocolDumpInformation(
 
   ASSERT_EFI_ERROR(Status);
 
-  RetVal = AllocatePool(VersionStringSize);
+  RetVal = AllocateZeroPool(VersionStringSize);
   ASSERT(RetVal != NULL);
   UnicodeSPrint(RetVal, VersionStringSize, L"0x%08x", DriverEfiVersion->FirmwareVersion);
   return (RetVal);
@@ -306,7 +306,7 @@ DevicePathProtocolDumpInformation(
       gBS->CloseProtocol(TheHandle, &gEfiDevicePathProtocolGuid, gImageHandle, NULL);
     }
   }
-  if (Verbose && Temp != NULL && StrLen(Temp) > 30) {
+  if (!Verbose && Temp != NULL && StrLen(Temp) > 30) {
     Temp2 = NULL;
     Temp2 = StrnCatGrow(&Temp2, NULL, Temp+(StrLen(Temp) - 30), 30);
     FreePool(Temp);
@@ -680,7 +680,7 @@ InternalShellInitHandleList(
     return (Status);
   }
   for (mHandleList.NextIndex = 1 ; mHandleList.NextIndex <= HandleCount ; mHandleList.NextIndex++){
-    ListWalker = AllocatePool(sizeof(HANDLE_LIST));
+    ListWalker = AllocateZeroPool(sizeof(HANDLE_LIST));
     ASSERT(ListWalker != NULL);
     ListWalker->TheHandle = HandleBuffer[mHandleList.NextIndex-1];
     ListWalker->TheIndex  = mHandleList.NextIndex;
@@ -708,7 +708,9 @@ ConvertHandleToHandleIndex(
   )
 {
   HANDLE_LIST *ListWalker;
-  ASSERT(TheHandle!=NULL);
+  if (TheHandle == NULL) {
+    return 0;
+  }
 
   InternalShellInitHandleList();
 
@@ -720,7 +722,7 @@ ConvertHandleToHandleIndex(
       return (ListWalker->TheIndex);
     }
   }
-  ListWalker = AllocatePool(sizeof(HANDLE_LIST));
+  ListWalker = AllocateZeroPool(sizeof(HANDLE_LIST));
   ASSERT(ListWalker != NULL);
   ListWalker->TheHandle = TheHandle;
   ListWalker->TheIndex  = mHandleList.NextIndex++;
@@ -1038,7 +1040,7 @@ ParseHandleDatabaseByRelationship (
         //
         // Allocate a handle buffer for the number of handles that matched the attributes in Mask
         //
-        *MatchingHandleBuffer = AllocatePool ((*MatchingHandleCount +1)* sizeof (EFI_HANDLE));
+        *MatchingHandleBuffer = AllocateZeroPool ((*MatchingHandleCount +1)* sizeof (EFI_HANDLE));
         ASSERT(*MatchingHandleBuffer != NULL);
 
         for (HandleIndex = 0,*MatchingHandleCount = 0
@@ -1095,14 +1097,14 @@ ParseHandleDatabaseForChildControllers(
   )
 {
   EFI_STATUS  Status;
-  UINTN       HandleIndex;
+//  UINTN       HandleIndex;
   UINTN       DriverBindingHandleCount;
   EFI_HANDLE  *DriverBindingHandleBuffer;
   UINTN       DriverBindingHandleIndex;
   UINTN       ChildControllerHandleCount;
   EFI_HANDLE  *ChildControllerHandleBuffer;
   UINTN       ChildControllerHandleIndex;
-  BOOLEAN     Found;
+//  BOOLEAN     Found;
   EFI_HANDLE  *HandleBufferForReturn;
 
   if (MatchingHandleCount == NULL) {
@@ -1143,17 +1145,18 @@ ParseHandleDatabaseForChildControllers(
          ChildControllerHandleIndex < ChildControllerHandleCount;
          ChildControllerHandleIndex++
        ) {
-      Found = FALSE;
-      for (HandleIndex = 0; HandleBufferForReturn[HandleIndex] != NULL; HandleIndex++) {
-        if (HandleBufferForReturn[HandleIndex] == ChildControllerHandleBuffer[ChildControllerHandleIndex]) {
-          Found = TRUE;
-          break;
-        }
-      }
-
-      if (!Found) {
-        HandleBufferForReturn[(*MatchingHandleCount)++] = ChildControllerHandleBuffer[ChildControllerHandleIndex];
-      }
+//      Found = FALSE;
+      HandleBufferForReturn[(*MatchingHandleCount)++] = ChildControllerHandleBuffer[ChildControllerHandleIndex];
+//      for (HandleIndex = 0; HandleBufferForReturn[HandleIndex] != NULL; HandleIndex++) {
+//        if (HandleBufferForReturn[HandleIndex] == ChildControllerHandleBuffer[ChildControllerHandleIndex]) {
+//          Found = TRUE;
+//          break;
+//        }
+//      }
+
+//      if (Found) {
+//        HandleBufferForReturn[(*MatchingHandleCount)++] = ChildControllerHandleBuffer[ChildControllerHandleIndex];
+//      }
     }
 
     FreePool (ChildControllerHandleBuffer);
@@ -1217,7 +1220,7 @@ BuffernCatGrow (
 
   if (LocalDestinationSize == 0) {
     // allcoate
-    *DestinationBuffer = AllocatePool(LocalDestinationFinalSize);
+    *DestinationBuffer = AllocateZeroPool(LocalDestinationFinalSize);
   } else {
     // reallocate
     *DestinationBuffer = ReallocatePool(LocalDestinationSize, LocalDestinationFinalSize, *DestinationBuffer);
@@ -1333,7 +1336,7 @@ GetHandleListByProtocol (
   if (ProtocolGuid == NULL) {
     Status = gBS->LocateHandle(AllHandles, NULL, NULL, &Size, HandleList);
     if (Status == EFI_BUFFER_TOO_SMALL) {
-      HandleList = AllocatePool(Size + sizeof(EFI_HANDLE));
+      HandleList = AllocateZeroPool(Size + sizeof(EFI_HANDLE));
       if (HandleList == NULL) {
         return (NULL);
       }
@@ -1343,7 +1346,7 @@ GetHandleListByProtocol (
   } else {
     Status = gBS->LocateHandle(ByProtocol, (EFI_GUID*)ProtocolGuid, NULL, &Size, HandleList);
     if (Status == EFI_BUFFER_TOO_SMALL) {
-      HandleList = AllocatePool(Size + sizeof(EFI_HANDLE));
+      HandleList = AllocateZeroPool(Size + sizeof(EFI_HANDLE));
       if (HandleList == NULL) {
         return (NULL);
       }
diff --git a/ShellPkg/Library/UefiHandleParsingLib/UefiHandleParsingLib.h b/ShellPkg/Library/UefiHandleParsingLib/UefiHandleParsingLib.h
index 3cf9320c11..d519c1d400 100644
--- a/ShellPkg/Library/UefiHandleParsingLib/UefiHandleParsingLib.h
+++ b/ShellPkg/Library/UefiHandleParsingLib/UefiHandleParsingLib.h
@@ -1,7 +1,7 @@
 /** @file
   Provides interface to advanced shell functionality for parsing both handle and protocol database.
 
-  Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
   which accompanies this distribution.  The full text of the license may be found at
@@ -12,6 +12,9 @@
 
 **/
 
+#if !defined (_UEFI_HANDLE_PARSING_LIB_INTERNAL_H_)
+#define _UEFI_HANDLE_PARSING_LIB_INTERNAL_H_
+
 #include <Uefi.h>
 
 #include <Guid/FileInfo.h>
@@ -139,3 +142,5 @@ typedef struct {
   DUMP_PROTOCOL_INFO            DumpInfo;
 } PROTOCOL_INFO_BLOCK;
 
+#endif
+
-- 
2.39.2