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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>, Fu Siyuan <siyuan.fu@intel.com>,
	Ye Ting <ting.ye@intel.com>, Wu Jiaxin <jiaxin.wu@intel.com>
Subject: [PATCH 6/6] NetworkPkg: Refine UintnToAscDecWithFormat functions logic
Date: Wed, 14 Dec 2016 19:26:51 +0800	[thread overview]
Message-ID: <1481714811-12568-7-git-send-email-hao.a.wu@intel.com> (raw)
In-Reply-To: <1481714811-12568-1-git-send-email-hao.a.wu@intel.com>

This commit refines the logic for HttpBootUintnToAscDecWithFormat and
PxeBcUintnToAscDecWithFormat. It avoids using the decrement operator '--'
for array index to prevent possible mis-reports by static code checkers.

Cc: Fu Siyuan <siyuan.fu@intel.com>
Cc: Ye Ting <ting.ye@intel.com>
Cc: Wu Jiaxin <jiaxin.wu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
---
 NetworkPkg/HttpBootDxe/HttpBootSupport.c | 5 ++---
 NetworkPkg/UefiPxeBcDxe/PxeBcSupport.c   | 5 ++---
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/NetworkPkg/HttpBootDxe/HttpBootSupport.c b/NetworkPkg/HttpBootDxe/HttpBootSupport.c
index 9410bf9..bdb29ae 100644
--- a/NetworkPkg/HttpBootDxe/HttpBootSupport.c
+++ b/NetworkPkg/HttpBootDxe/HttpBootSupport.c
@@ -86,11 +86,10 @@ HttpBootUintnToAscDecWithFormat (
 {
   UINTN                          Remainder;
 
-  while (Length > 0) {
-    Length--;
+  for (; Length > 0; Length--) {
     Remainder      = Number % 10;
     Number        /= 10;
-    Buffer[Length] = (UINT8) ('0' + Remainder);
+    Buffer[Length - 1] = (UINT8) ('0' + Remainder);
   }
 }
 
diff --git a/NetworkPkg/UefiPxeBcDxe/PxeBcSupport.c b/NetworkPkg/UefiPxeBcDxe/PxeBcSupport.c
index 00c652d..568360d 100644
--- a/NetworkPkg/UefiPxeBcDxe/PxeBcSupport.c
+++ b/NetworkPkg/UefiPxeBcDxe/PxeBcSupport.c
@@ -1383,11 +1383,10 @@ PxeBcUintnToAscDecWithFormat (
 {
   UINTN                          Remainder;
 
-  while (Length > 0) {
-    Length--;
+  for (; Length > 0; Length--) {
     Remainder      = Number % 10;
     Number        /= 10;
-    Buffer[Length] = (UINT8) ('0' + Remainder);
+    Buffer[Length - 1] = (UINT8) ('0' + Remainder);
   }
 }
 
-- 
1.9.5.msysgit.0



  parent reply	other threads:[~2016-12-14 11:27 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-14 11:26 [PATCH 0/6] Refine code logics to prevent possible mis-reports by static code checkers Hao Wu
2016-12-14 11:26 ` [PATCH 1/6] MdePkg/BaseLib: Refine (Ascii)StrnLenS functions logic Hao Wu
2016-12-15 23:54   ` Kinney, Michael D
2016-12-16  3:21     ` Wu, Hao A
2016-12-14 11:26 ` [PATCH 2/6] MdePkg/BaseLib: Add an additional check within (Ascii)StrnCmp Hao Wu
2016-12-15 23:54   ` Kinney, Michael D
2016-12-14 11:26 ` [PATCH 3/6] MdePkg/MemoryLib: Refine InternalMemSetMem16|32|64 functions logic Hao Wu
2016-12-15 23:55   ` Kinney, Michael D
2016-12-14 11:26 ` [PATCH 4/6] MdeModulePkg/DxeNetLib: Rewrite NetblockChecksum function logic Hao Wu
2016-12-15  2:45   ` Fu, Siyuan
2016-12-15  7:41   ` Ye, Ting
2016-12-15  7:51   ` Wu, Jiaxin
2016-12-14 11:26 ` [PATCH 5/6] MdeModulePkg/UefiPxeBcDxe: Refine the CvtNum " Hao Wu
2016-12-15  2:47   ` Fu, Siyuan
2016-12-15  7:33   ` Ye, Ting
2016-12-15  7:51   ` Wu, Jiaxin
2016-12-14 11:26 ` Hao Wu [this message]
2016-12-15  2:47   ` [PATCH 6/6] NetworkPkg: Refine UintnToAscDecWithFormat functions logic Fu, Siyuan
2016-12-15  7:32   ` Ye, Ting
2016-12-15  7:52   ` Wu, Jiaxin
2016-12-18  3:04 ` [PATCH 0/6] Refine code logics to prevent possible mis-reports by static code checkers Heyi Guo
2016-12-20  8:14   ` Wu, Hao A

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