mirror of https://github.com/acidanthera/audk.git
136 lines
4.0 KiB
C
136 lines
4.0 KiB
C
/** @file
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Main file for attrib shell level 2 function.
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Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved. <BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "UefiShellLevel3CommandsLib.h"
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/**
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Function for 'cls' command.
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@param[in] ImageHandle Handle to the Image (NULL if Internal).
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@param[in] SystemTable Pointer to the System Table (NULL if Internal).
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**/
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SHELL_STATUS
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EFIAPI
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ShellCommandRunCls (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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LIST_ENTRY *Package;
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CHAR16 *Message;
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UINTN Background;
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UINTN ForeColor;
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CHAR16 *ProblemParam;
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SHELL_STATUS ShellStatus;
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CONST CHAR16 *Param1;
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ShellStatus = SHELL_SUCCESS;
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ProblemParam = NULL;
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Background = 0;
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//
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// Initialize variables
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//
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Message = NULL;
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//
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// initialize the shell lib (we must be in non-auto-init...)
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//
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Status = ShellInitialize();
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ASSERT_EFI_ERROR(Status);
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//
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// parse the command line
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//
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Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);
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if (EFI_ERROR(Status)) {
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if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel3HiiHandle, ProblemParam);
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FreePool(ProblemParam);
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ShellStatus = SHELL_INVALID_PARAMETER;
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} else {
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ASSERT(FALSE);
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}
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} else {
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//
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// check for "-?"
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//
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if (ShellCommandLineGetFlag(Package, L"-?")) {
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ASSERT(FALSE);
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} else {
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//
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// If there are 0 value parameters, clear sceen
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//
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Param1 = ShellCommandLineGetRawValue(Package, 1);
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if (Param1 == NULL) {
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//
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// clear screen
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//
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gST->ConOut->ClearScreen (gST->ConOut);
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} else if (ShellCommandLineGetCount(Package) > 2) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel3HiiHandle);
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ShellStatus = SHELL_INVALID_PARAMETER;
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} else {
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if (ShellStrToUintn(Param1) > 7 || StrLen(Param1) > 1 || !ShellIsDecimalDigitCharacter(*Param1)) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel3HiiHandle, Param1);
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ShellStatus = SHELL_INVALID_PARAMETER;
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} else {
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switch (ShellStrToUintn(Param1)) {
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case 0:
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Background = EFI_BACKGROUND_BLACK;
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break;
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case 1:
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Background = EFI_BACKGROUND_BLUE;
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break;
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case 2:
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Background = EFI_BACKGROUND_GREEN;
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break;
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case 3:
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Background = EFI_BACKGROUND_CYAN;
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break;
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case 4:
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Background = EFI_BACKGROUND_RED;
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break;
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case 5:
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Background = EFI_BACKGROUND_MAGENTA;
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break;
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case 6:
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Background = EFI_BACKGROUND_BROWN;
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break;
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case 7:
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Background = EFI_BACKGROUND_LIGHTGRAY;
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break;
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}
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ForeColor = (~ShellStrToUintn(Param1)) & 0xF;
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Status = gST->ConOut->SetAttribute (gST->ConOut, ForeColor | Background);
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ASSERT_EFI_ERROR(Status);
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Status = gST->ConOut->ClearScreen (gST->ConOut);
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ASSERT_EFI_ERROR(Status);
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}
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}
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}
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}
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//
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// free the command line package
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//
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ShellCommandLineFreeVarList (Package);
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//
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// return the status
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//
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return (ShellStatus);
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}
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