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Refine code to make it more safely.

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Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Jaben Carsey <Jaben.carsey@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15593 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Eric Dong 2014-06-26 01:38:46 +00:00 committed by ydong10
parent 45295cf5a5
commit 81cd2f536e
7 changed files with 73 additions and 52 deletions
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2
ShellPkg/Application/Shell/Shell.c
View File

@ -509,6 +509,7 @@ UefiMain (
// Reset page break back to default.
//
ShellInfoObject.PageBreakEnabled = PcdGetBool(PcdShellPageBreakDefault);
ASSERT (ShellInfoObject.ConsoleInfo != NULL);
ShellInfoObject.ConsoleInfo->Enabled = TRUE;
ShellInfoObject.ConsoleInfo->RowCounter = 0;
@ -2091,6 +2092,7 @@ ProcessCommandLineToFinal(
if (EFI_ERROR(Status)) {
return (Status);
}
ASSERT (*CmdLine != NULL);
TrimSpaces(CmdLine);

1
ShellPkg/Application/Shell/ShellProtocol.c
View File

@ -460,6 +460,7 @@ EfiShellGetFilePathFromDevicePath(
ASSERT((PathForReturn == NULL && PathSize == 0) || (PathForReturn != NULL));
AlignedNode = AllocateCopyPool (DevicePathNodeLength(FilePath), FilePath);
ASSERT (AlignedNode != NULL);
// File Path Device Path Nodes 'can optionally add a "\" separator to
// the beginning and/or the end of the Path Name string.'

40
ShellPkg/Library/UefiShellDebug1CommandsLib/Bcfg.c
View File

@ -1,7 +1,7 @@
/** @file
Main file for bcfg shell Debug1 function.
Copyright (c) 2010 - 2013, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2010 - 2014, 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
@ -1027,12 +1027,14 @@ BcfgDisplayDumpDebug1(
Buffer);
if (Status == EFI_BUFFER_TOO_SMALL) {
Buffer = AllocateZeroPool(BufferSize);
Status = gRT->GetVariable(
VariableName,
(EFI_GUID*)&gEfiGlobalVariableGuid,
NULL,
&BufferSize,
Buffer);
if (Buffer != NULL) {
Status = gRT->GetVariable(
VariableName,
(EFI_GUID*)&gEfiGlobalVariableGuid,
NULL,
&BufferSize,
Buffer);
}
}
if (EFI_ERROR(Status) || Buffer == NULL) {
@ -1042,8 +1044,12 @@ BcfgDisplayDumpDebug1(
if ((*(UINT16*)(Buffer+4)) != 0) {
DevPath = AllocateZeroPool(*(UINT16*)(Buffer+4));
CopyMem(DevPath, Buffer+6+StrSize((CHAR16*)(Buffer+6)), *(UINT16*)(Buffer+4));
DevPathString = ConvertDevicePathToText(DevPath, TRUE, FALSE);
if (DevPath != NULL) {
CopyMem(DevPath, Buffer+6+StrSize((CHAR16*)(Buffer+6)), *(UINT16*)(Buffer+4));
DevPathString = ConvertDevicePathToText(DevPath, TRUE, FALSE);
} else {
DevPathString = NULL;
}
} else {
DevPath = NULL;
DevPathString = NULL;
@ -1213,12 +1219,16 @@ ShellCommandRunBcfg (
CurrentOperation.Order);
if (Status == EFI_BUFFER_TOO_SMALL) {
CurrentOperation.Order = AllocateZeroPool(Length+(4*sizeof(CurrentOperation.Order[0])));
Status = gRT->GetVariable(
CurrentOperation.Target == BcfgTargetBootOrder?(CHAR16*)L"BootOrder":(CHAR16*)L"DriverOrder",
(EFI_GUID*)&gEfiGlobalVariableGuid,
NULL,
&Length,
CurrentOperation.Order);
if (CurrentOperation.Order != NULL) {
Status = gRT->GetVariable(
CurrentOperation.Target == BcfgTargetBootOrder?(CHAR16*)L"BootOrder":(CHAR16*)L"DriverOrder",
(EFI_GUID*)&gEfiGlobalVariableGuid,
NULL,
&Length,
CurrentOperation.Order);
} else {
ShellStatus = SHELL_OUT_OF_RESOURCES;
}
}
}

22
ShellPkg/Library/UefiShellDebug1CommandsLib/Edit/FileBuffer.c
View File

@ -1,7 +1,7 @@
/** @file
Implements filebuffer interface functions.
Copyright (c) 2005 - 2012, Intel Corporation. All rights reserved. <BR>
Copyright (c) 2005 - 2014, 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
@ -489,8 +489,9 @@ FileBufferPrintLine (
CHAR16 *Buffer;
UINTN Limit;
CHAR16 PrintLine[200];
CHAR16 PrintLine2[250];
CHAR16 *PrintLine;
CHAR16 *PrintLine2;
UINTN BufLen;
//
// print start from correct character
@ -502,13 +503,21 @@ FileBufferPrintLine (
Limit = 0;
}
StrnCpy (PrintLine, Buffer, MIN(MIN(Limit,MainEditor.ScreenSize.Column), 200));
BufLen = (MainEditor.ScreenSize.Column + 1) * sizeof (CHAR16);
PrintLine = AllocatePool (BufLen);
ASSERT (PrintLine != NULL);
StrnCpy (PrintLine, Buffer, MIN(Limit, MainEditor.ScreenSize.Column));
for (; Limit < MainEditor.ScreenSize.Column; Limit++) {
PrintLine[Limit] = L' ';
}
PrintLine[MainEditor.ScreenSize.Column] = CHAR_NULL;
ShellCopySearchAndReplace(PrintLine, PrintLine2, 250, L"%", L"^%", FALSE, FALSE);
PrintLine2 = AllocatePool (BufLen * 2);
ASSERT (PrintLine2 != NULL);
ShellCopySearchAndReplace(PrintLine, PrintLine2, BufLen * 2, L"%", L"^%", FALSE, FALSE);
ShellPrintEx (
0,
@ -517,6 +526,9 @@ FileBufferPrintLine (
PrintLine2
);
FreePool (PrintLine);
FreePool (PrintLine2);
return EFI_SUCCESS;
}

3
ShellPkg/Library/UefiShellDebug1CommandsLib/Mm.c
View File

@ -1,7 +1,7 @@
/** @file
Main file for Mm shell Debug1 function.
Copyright (c) 2005 - 2013, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2005 - 2014, 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
@ -229,6 +229,7 @@ ShellCommandRunMm (
SHELL_STATUS ShellStatus;
CONST CHAR16 *Temp;
Value = 0;
Address = 0;
PciEAddress = 0;
IoDev = NULL;

26
ShellPkg/Library/UefiShellInstall1CommandsLib/Bcfg.c
View File

@ -1,7 +1,7 @@
/** @file
Main file for bcfg shell Install1 function.
Copyright (c) 2010 - 2013, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2010 - 2014, 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
@ -1040,8 +1040,12 @@ BcfgDisplayDumpInstall1(
if ((*(UINT16*)(Buffer+4)) != 0) {
DevPath = AllocateZeroPool(*(UINT16*)(Buffer+4));
CopyMem(DevPath, Buffer+6+StrSize((CHAR16*)(Buffer+6)), *(UINT16*)(Buffer+4));
DevPathString = ConvertDevicePathToText(DevPath, TRUE, FALSE);
if (DevPath == NULL) {
DevPathString = NULL;
} else {
CopyMem(DevPath, Buffer+6+StrSize((CHAR16*)(Buffer+6)), *(UINT16*)(Buffer+4));
DevPathString = ConvertDevicePathToText(DevPath, TRUE, FALSE);
}
} else {
DevPath = NULL;
DevPathString = NULL;
@ -1211,12 +1215,16 @@ ShellCommandRunBcfgInstall (
CurrentOperation.Order);
if (Status == EFI_BUFFER_TOO_SMALL) {
CurrentOperation.Order = AllocateZeroPool(Length+(4*sizeof(CurrentOperation.Order[0])));
Status = gRT->GetVariable(
CurrentOperation.Target == BcfgTargetBootOrder?(CHAR16*)L"BootOrder":(CHAR16*)L"DriverOrder",
(EFI_GUID*)&gEfiGlobalVariableGuid,
NULL,
&Length,
CurrentOperation.Order);
if (CurrentOperation.Order == NULL) {
ShellStatus = SHELL_OUT_OF_RESOURCES;
} else {
Status = gRT->GetVariable(
CurrentOperation.Target == BcfgTargetBootOrder?(CHAR16*)L"BootOrder":(CHAR16*)L"DriverOrder",
(EFI_GUID*)&gEfiGlobalVariableGuid,
NULL,
&Length,
CurrentOperation.Order);
}
}
}

31
ShellPkg/Library/UefiShellLevel1CommandsLib/For.c
View File

@ -1,7 +1,7 @@
/** @file
Main file for endfor and for shell level 1 functions.
Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2009 - 2014, 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
@ -333,7 +333,7 @@ ShellCommandRunFor (
CurrentScriptFile = ShellCommandGetCurrentScriptFile();
ASSERT(CurrentScriptFile != NULL);
if (CurrentScriptFile->CurrentCommand->Data == NULL) {
if ((CurrentScriptFile->CurrentCommand != NULL) && (CurrentScriptFile->CurrentCommand->Data == NULL)) {
FirstPass = TRUE;
//
@ -348,8 +348,7 @@ ShellCommandRunFor (
gShellLevel1HiiHandle,
L"EndFor",
L"For",
CurrentScriptFile->CurrentCommand!=NULL
?CurrentScriptFile->CurrentCommand->Line:0);
CurrentScriptFile->CurrentCommand->Line);
return (SHELL_DEVICE_ERROR);
}
@ -459,9 +458,7 @@ ShellCommandRunFor (
STRING_TOKEN (STR_GEN_PROBLEM_SCRIPT),
gShellLevel1HiiHandle,
ArgSet,
CurrentScriptFile!=NULL
&& CurrentScriptFile->CurrentCommand!=NULL
? CurrentScriptFile->CurrentCommand->Line:0);
CurrentScriptFile->CurrentCommand->Line);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
TempSpot = StrStr(ArgSetWalker, L")");
@ -483,9 +480,7 @@ ShellCommandRunFor (
NULL,
STRING_TOKEN (STR_GEN_PROBLEM_SCRIPT),
gShellLevel1HiiHandle,
CurrentScriptFile!=NULL
&& CurrentScriptFile->CurrentCommand!=NULL
? CurrentScriptFile->CurrentCommand->Line:0);
CurrentScriptFile->CurrentCommand->Line);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
*TempSpot = CHAR_NULL;
@ -501,9 +496,7 @@ ShellCommandRunFor (
STRING_TOKEN (STR_GEN_PROBLEM_SCRIPT),
gShellLevel1HiiHandle,
ArgSet,
CurrentScriptFile!=NULL
&& CurrentScriptFile->CurrentCommand!=NULL
? CurrentScriptFile->CurrentCommand->Line:0);
CurrentScriptFile->CurrentCommand->Line);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
if (ArgSetWalker[0] == L'-') {
@ -523,9 +516,7 @@ ShellCommandRunFor (
STRING_TOKEN (STR_GEN_PROBLEM_SCRIPT),
gShellLevel1HiiHandle,
ArgSet,
CurrentScriptFile!=NULL
&& CurrentScriptFile->CurrentCommand!=NULL
? CurrentScriptFile->CurrentCommand->Line:0);
CurrentScriptFile->CurrentCommand->Line);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
if (ArgSetWalker[0] == L'-') {
@ -552,9 +543,7 @@ ShellCommandRunFor (
STRING_TOKEN (STR_GEN_PROBLEM_SCRIPT),
gShellLevel1HiiHandle,
ArgSet,
CurrentScriptFile!=NULL
&& CurrentScriptFile->CurrentCommand!=NULL
? CurrentScriptFile->CurrentCommand->Line:0);
CurrentScriptFile->CurrentCommand->Line);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
if (*ArgSetWalker == L')') {
@ -574,9 +563,7 @@ ShellCommandRunFor (
STRING_TOKEN (STR_GEN_PROBLEM_SCRIPT),
gShellLevel1HiiHandle,
ArgSet,
CurrentScriptFile!=NULL
&& CurrentScriptFile->CurrentCommand!=NULL
? CurrentScriptFile->CurrentCommand->Line:0);
CurrentScriptFile->CurrentCommand->Line);
ShellStatus = SHELL_INVALID_PARAMETER;
}
}