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From: Hao Wu <hao.a.wu@intel.com>
To: edk2-devel@lists.01.org
Cc: Hao Wu <hao.a.wu@intel.com>, Jiewen Yao <jiewen.yao@intel.com>
Subject: [PATCH 2/5] MdeModulePkg/EbcDebugger: Add check for invalid 'CommandArg'
Date: Thu, 24 Nov 2016 10:56:32 +0800	[thread overview]
Message-ID: <1479956195-10764-3-git-send-email-hao.a.wu@intel.com> (raw)
In-Reply-To: <1479956195-10764-1-git-send-email-hao.a.wu@intel.com>

Add checks for the return value of function Atoi() in EdbCmdBreakpoint.c.
If the input parameter 'CommandArg' contains non-digit character, print
corresponding error message.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
---
 .../Universal/EbcDxe/EbcDebugger/EdbCmdBreakpoint.c        | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdBreakpoint.c b/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdBreakpoint.c
index 4be6dd4..f06963f 100644
--- a/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdBreakpoint.c
+++ b/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdBreakpoint.c
@@ -1,6 +1,6 @@
 /*++
 
-Copyright (c) 2007, Intel Corporation
+Copyright (c) 2007 - 2016, Intel Corporation
 All rights reserved. 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
@@ -461,6 +461,10 @@ Returns:
   // Get breakpoint index
   //
   Index = Atoi(CommandArg);
+  if (Index == (UINTN) -1) {
+    EDBPrint (L"BreakpointClear Argument error!\n");
+    return EFI_DEBUG_CONTINUE;
+  }
 
   if ((Index >= EFI_DEBUGGER_BREAKPOINT_MAX) ||
       (Index >= DebuggerPrivate->DebuggerBreakpointCount)) {
@@ -534,6 +538,10 @@ Returns:
   // Get breakpoint index
   //
   Index = Atoi(CommandArg);
+  if (Index == (UINTN) -1) {
+    EDBPrint (L"BreakpointDisable Argument error!\n");
+    return EFI_DEBUG_CONTINUE;
+  }
 
   //
   // Disable breakpoint
@@ -598,6 +606,10 @@ Returns:
   // Get breakpoint index
   //
   Index = Atoi(CommandArg);
+  if (Index == (UINTN) -1) {
+    EDBPrint (L"BreakpointEnable Argument error!\n");
+    return EFI_DEBUG_CONTINUE;
+  }
 
   //
   // Enable breakpoint
-- 
1.9.5.msysgit.0



  parent reply	other threads:[~2016-11-24  2:56 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-24  2:56 [PATCH 0/5] Code refinements in MdeModulePkg/EbcDebugger Hao Wu
2016-11-24  2:56 ` [PATCH 1/5] MdeModulePkg/EbcDebugger: Operands of same size for bitwise operation Hao Wu
2016-11-24  2:56 ` Hao Wu [this message]
2016-11-24  2:56 ` [PATCH 3/5] MdeModulePkg/EbcDebugger: Add missing check for symbol not found Hao Wu
2016-11-24  2:56 ` [PATCH 4/5] MdeModulePkg/EbcDebugger: Add ASSERT to ensure FieldBuffer is not NULL Hao Wu
2016-11-24  2:56 ` [PATCH 5/5] MdeModulePkg/EbcDebugger: Compare ASCII char with '\0' Hao Wu
2016-11-24  3:12 ` [PATCH 0/5] Code refinements in MdeModulePkg/EbcDebugger Yao, Jiewen

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