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authorQiu Shumin <shumin.qiu@intel.com>2014-09-10 01:03:43 +0000
committershenshushi <shenshushi@6f19259b-4bc3-4df7-8a09-765794883524>2014-09-10 01:03:43 +0000
commit323d3d111843cb4fbdf4f9918f72d305e63bc091 (patch)
tree65fe284561ab6373083ab107196ccf14748de399 /ShellPkg/Application
parentc9f4d4838ce92a6c2fb4faf5f46faa3b057b4dee (diff)
downloadedk2-platforms-323d3d111843cb4fbdf4f9918f72d305e63bc091.tar.xz
ShellPkg: Replace the usage of StrnCpy with CopyMem to avoid potential buffer overflow and refine the code style.
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Qiu Shumin <shumin.qiu@intel.com> Signed-off-by: Yao Jiewen <jiewen.yao@intel.com> Reviewed-by: Jaben Carsey <Jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16083 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ShellPkg/Application')
-rw-r--r--ShellPkg/Application/Shell/FileHandleWrappers.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/ShellPkg/Application/Shell/FileHandleWrappers.c b/ShellPkg/Application/Shell/FileHandleWrappers.c
index be786bb2b5..d3fc5dc578 100644
--- a/ShellPkg/Application/Shell/FileHandleWrappers.c
+++ b/ShellPkg/Application/Shell/FileHandleWrappers.c
@@ -1140,6 +1140,7 @@ CreateFileInterfaceEnv(
)
{
EFI_FILE_PROTOCOL_ENVIRONMENT *EnvFileInterface;
+ UINTN EnvNameSize;
if (EnvName == NULL) {
return (NULL);
@@ -1148,7 +1149,8 @@ CreateFileInterfaceEnv(
//
// Get some memory
//
- EnvFileInterface = AllocateZeroPool(sizeof(EFI_FILE_PROTOCOL_ENVIRONMENT)+StrSize(EnvName));
+ EnvNameSize = StrSize(EnvName);
+ EnvFileInterface = AllocateZeroPool(sizeof(EFI_FILE_PROTOCOL_ENVIRONMENT)+EnvNameSize);
if (EnvFileInterface == NULL){
return (NULL);
}
@@ -1166,8 +1168,8 @@ CreateFileInterfaceEnv(
EnvFileInterface->Flush = FileInterfaceNopGeneric;
EnvFileInterface->Delete = FileInterfaceEnvDelete;
EnvFileInterface->Read = FileInterfaceEnvRead;
-
- StrnCpy(EnvFileInterface->Name, EnvName, StrLen(EnvName));
+
+ CopyMem(EnvFileInterface->Name, EnvName, EnvNameSize);
//
// Assign the different members for Volatile and Non-Volatile variables