c011b6c9e2
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Tapan Shah <tapandshah@hp.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16759 6f19259b-4bc3-4df7-8a09-765794883524
122 lines
3.5 KiB
C
122 lines
3.5 KiB
C
/** @file
|
|
Main file for Echo shell level 3 function.
|
|
|
|
(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
|
|
Copyright (c) 2009 - 2012, 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
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
#include "UefiShellLevel3CommandsLib.h"
|
|
|
|
#include <Library/ShellLib.h>
|
|
|
|
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
|
|
{L"-on", TypeFlag},
|
|
{L"-off", TypeFlag},
|
|
{NULL, TypeMax}
|
|
};
|
|
|
|
/**
|
|
Function for 'echo' command.
|
|
|
|
@param[in] ImageHandle Handle to the Image (NULL if Internal).
|
|
@param[in] SystemTable Pointer to the System Table (NULL if Internal).
|
|
**/
|
|
SHELL_STATUS
|
|
EFIAPI
|
|
ShellCommandRunEcho (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
LIST_ENTRY *Package;
|
|
SHELL_STATUS ShellStatus;
|
|
UINTN ParamCount;
|
|
CHAR16 *ProblemParam;
|
|
UINTN Size;
|
|
CHAR16 *PrintString;
|
|
|
|
Size = 0;
|
|
ProblemParam = NULL;
|
|
PrintString = NULL;
|
|
ShellStatus = SHELL_SUCCESS;
|
|
|
|
//
|
|
// initialize the shell lib (we must be in non-auto-init...)
|
|
//
|
|
Status = ShellInitialize();
|
|
ASSERT_EFI_ERROR(Status);
|
|
|
|
//
|
|
// parse the command line
|
|
//
|
|
Status = ShellCommandLineParseEx (ParamList, &Package, &ProblemParam, TRUE, TRUE);
|
|
if (EFI_ERROR(Status)) {
|
|
if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
|
|
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel3HiiHandle, L"echo", ProblemParam);
|
|
FreePool(ProblemParam);
|
|
ShellStatus = SHELL_INVALID_PARAMETER;
|
|
} else {
|
|
ASSERT(FALSE);
|
|
}
|
|
} else {
|
|
//
|
|
// check for "-?"
|
|
//
|
|
if (ShellCommandLineGetFlag(Package, L"-?")) {
|
|
ASSERT(FALSE);
|
|
}
|
|
if (ShellCommandLineGetFlag(Package, L"-on")) {
|
|
//
|
|
// Turn it on
|
|
//
|
|
ShellCommandSetEchoState(TRUE);
|
|
} else if (ShellCommandLineGetFlag(Package, L"-off")) {
|
|
//
|
|
// turn it off
|
|
//
|
|
ShellCommandSetEchoState(FALSE);
|
|
} else if (ShellCommandLineGetRawValue(Package, 1) == NULL) {
|
|
//
|
|
// output its current state
|
|
//
|
|
if (ShellCommandGetEchoState()) {
|
|
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_ECHO_ON), gShellLevel3HiiHandle);
|
|
} else {
|
|
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_ECHO_OFF), gShellLevel3HiiHandle);
|
|
}
|
|
} else {
|
|
//
|
|
// print the line
|
|
//
|
|
for ( ParamCount = 1
|
|
; ShellCommandLineGetRawValue(Package, ParamCount) != NULL
|
|
; ParamCount++
|
|
) {
|
|
StrnCatGrow(&PrintString, &Size, ShellCommandLineGetRawValue(Package, ParamCount), 0);
|
|
if (ShellCommandLineGetRawValue(Package, ParamCount+1) != NULL) {
|
|
StrnCatGrow(&PrintString, &Size, L" ", 0);
|
|
}
|
|
}
|
|
ShellPrintEx(-1, -1, L"%s\r\n", PrintString);
|
|
SHELL_FREE_NON_NULL(PrintString);
|
|
}
|
|
|
|
//
|
|
// free the command line package
|
|
//
|
|
ShellCommandLineFreeVarList (Package);
|
|
}
|
|
|
|
return (ShellStatus);
|
|
}
|
|
|