98 lines
2.1 KiB
C
98 lines
2.1 KiB
C
|
/*++
|
||
|
|
|
||
|
|
Copyright (c) 1998 Intel Corporation
|
||
|
|
|
||
|
|
Module Name:
|
||
|
|
|
||
|
|
echo.c
|
||
|
|
|
||
|
|
Abstract:
|
||
|
|
|
||
|
|
Shell app "echo"
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
Revision History
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
#include "shell.h"
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
EFI_STATUS
|
||
|
|
InitializeEcho (
|
||
|
|
IN EFI_HANDLE ImageHandle,
|
||
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
/*///////////////////////////////////////////////////////////////////////
|
||
|
|
Function Name:
|
||
|
|
InitializeEcho
|
||
|
|
|
||
|
|
Description:
|
||
|
|
Shell command "echo".
|
||
|
|
*/
|
||
|
|
EFI_DRIVER_ENTRY_POINT(InitializeEcho)
|
||
|
|
|
||
|
|
EFI_STATUS
|
||
|
|
InitializeEcho (
|
||
|
|
IN EFI_HANDLE ImageHandle,
|
||
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
||
|
|
)
|
||
|
|
{
|
||
|
|
CHAR16 **Argv;
|
||
|
|
UINTN Argc;
|
||
|
|
UINTN Index;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Check to see if the app is to install as a "internal command"
|
||
|
|
* to the shell
|
||
|
|
*/
|
||
|
|
|
||
|
|
InstallInternalShellCommand (
|
||
|
|
ImageHandle, SystemTable, InitializeEcho,
|
||
|
|
L"echo", /* command */
|
||
|
|
L"echo [[-on | -off] | [text]", /* command syntax */
|
||
|
|
L"Echo text to stdout or toggle script echo", /* 1 line descriptor */
|
||
|
|
NULL /* command help page */
|
||
|
|
);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* We are no being installed as an internal command driver, initialize
|
||
|
|
* as an nshell app and run
|
||
|
|
*/
|
||
|
|
|
||
|
|
InitializeShellApplication (ImageHandle, SystemTable);
|
||
|
|
Argv = SI->Argv;
|
||
|
|
Argc = SI->Argc;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* No args: print status
|
||
|
|
* One arg, either -on or -off: set console echo flag
|
||
|
|
* Otherwise: echo all the args. Shell parser will expand any args or vars.
|
||
|
|
*/
|
||
|
|
|
||
|
|
if ( Argc == 1 ) {
|
||
|
|
Print( L"Echo with no args not supported yet\n" );
|
||
|
|
|
||
|
|
} else if ( Argc == 2 && StriCmp( Argv[1], L"-on" ) == 0 ) {
|
||
|
|
Print( L"echo -on not supported yet\n" );
|
||
|
|
|
||
|
|
} else if ( Argc == 2 && StriCmp( Argv[1], L"-off" ) == 0 ) {
|
||
|
|
Print( L"echo -off not supported yet\n" );
|
||
|
|
|
||
|
|
} else {
|
||
|
|
for (Index = 1; Index < Argc; Index += 1) {
|
||
|
|
Print( L"%s ", Argv[Index] );
|
||
|
|
}
|
||
|
|
Print( L"\n" );
|
||
|
|
}
|
||
|
|
|
||
|
|
return EFI_SUCCESS;
|
||
|
|
}
|