diff options
Diffstat (limited to 'ShellPkg/Library/UefiShellDebug1CommandsLib/SetVar.c')
| -rw-r--r-- | ShellPkg/Library/UefiShellDebug1CommandsLib/SetVar.c | 61 |
1 files changed, 35 insertions, 26 deletions
diff --git a/ShellPkg/Library/UefiShellDebug1CommandsLib/SetVar.c b/ShellPkg/Library/UefiShellDebug1CommandsLib/SetVar.c index 9e57998ff8..0749826b89 100644 --- a/ShellPkg/Library/UefiShellDebug1CommandsLib/SetVar.c +++ b/ShellPkg/Library/UefiShellDebug1CommandsLib/SetVar.c @@ -1,7 +1,7 @@ /** @file
Main file for SetVar 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
@@ -44,7 +44,6 @@ ShellCommandRunSetVar ( EFI_GUID Guid;
CONST CHAR16 *StringGuid;
UINT32 Attributes;
- UINT32 Attributes2;
VOID *Buffer;
UINTN Size;
UINTN LoopVar;
@@ -98,7 +97,7 @@ ShellCommandRunSetVar ( ShellStatus = SHELL_INVALID_PARAMETER;
}
}
- if (Data == NULL) {
+ if (Data == NULL || Data[0] != L'=') {
//
// Display what's there
//
@@ -129,22 +128,43 @@ ShellCommandRunSetVar ( ASSERT(ShellStatus == SHELL_SUCCESS);
}
} else {
- if (Data[0] == L'=') {
- Data++;
- }
//
- // Change what's there
+ // Change what's there or create a new one.
//
- if (ShellCommandLineGetFlag(Package, L"-bs")) {
- Attributes |= EFI_VARIABLE_BOOTSERVICE_ACCESS;
- }
- if (ShellCommandLineGetFlag(Package, L"-rt")) {
- Attributes |= EFI_VARIABLE_RUNTIME_ACCESS |
- EFI_VARIABLE_BOOTSERVICE_ACCESS;
+
+ ASSERT(Data[0] == L'=');
+ Data++;
+
+ //
+ // Determine if the variable exists and get the attributes
+ //
+ Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes, &Size, Buffer);
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ Buffer = AllocateZeroPool(Size);
+ Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes, &Size, Buffer);
}
- if (ShellCommandLineGetFlag(Package, L"-nv")) {
- Attributes |= EFI_VARIABLE_NON_VOLATILE;
+
+ if (EFI_ERROR(Status) || Buffer == NULL) {
+ //
+ // Creating a new variable. determine attributes from command line.
+ //
+ Attributes = 0;
+ if (ShellCommandLineGetFlag(Package, L"-bs")) {
+ Attributes |= EFI_VARIABLE_BOOTSERVICE_ACCESS;
+ }
+ if (ShellCommandLineGetFlag(Package, L"-rt")) {
+ Attributes |= EFI_VARIABLE_RUNTIME_ACCESS |
+ EFI_VARIABLE_BOOTSERVICE_ACCESS;
+ }
+ if (ShellCommandLineGetFlag(Package, L"-nv")) {
+ Attributes |= EFI_VARIABLE_NON_VOLATILE;
+ }
}
+ SHELL_FREE_NON_NULL(Buffer);
+
+ //
+ // What type is the new data.
+ //
if (ShellIsHexOrDecimalNumber(Data, TRUE, FALSE)) {
if (StrLen(Data) % 2 != 0) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM_VAL), gShellDebug1HiiHandle, Data);
@@ -171,17 +191,6 @@ ShellCommandRunSetVar ( }
}
} else if (StrnCmp(Data, L"\"", 1) == 0) {
- Size = 0;
- Attributes2 = 0;
- Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes2, &Size, Buffer);
- if (Status == EFI_BUFFER_TOO_SMALL) {
- Buffer = AllocateZeroPool(Size);
- Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes2, &Size, Buffer);
- if (Buffer != NULL) {
- FreePool(Buffer);
- }
- Attributes = Attributes2;
- }
//
// ascii text
//
|