2 Main file for Echo shell level 3 function.
4 Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved. <BR>
5 This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15 #include "UefiShellLevel3CommandsLib.h"
17 #include <Library/ShellLib.h>
19 STATIC CONST SHELL_PARAM_ITEM ParamList
[] = {
26 Function for 'echo' command.
28 @param[in] ImageHandle Handle to the Image (NULL if Internal).
29 @param[in] SystemTable Pointer to the System Table (NULL if Internal).
34 IN EFI_HANDLE ImageHandle
,
35 IN EFI_SYSTEM_TABLE
*SystemTable
40 SHELL_STATUS ShellStatus
;
49 ShellStatus
= SHELL_SUCCESS
;
52 // initialize the shell lib (we must be in non-auto-init...)
54 Status
= ShellInitialize();
55 ASSERT_EFI_ERROR(Status
);
58 // parse the command line
60 Status
= ShellCommandLineParseEx (ParamList
, &Package
, &ProblemParam
, TRUE
, TRUE
);
61 if (EFI_ERROR(Status
)) {
62 if (Status
== EFI_VOLUME_CORRUPTED
&& ProblemParam
!= NULL
) {
63 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_GEN_PROBLEM
), gShellLevel3HiiHandle
, ProblemParam
);
64 FreePool(ProblemParam
);
65 ShellStatus
= SHELL_INVALID_PARAMETER
;
73 if (ShellCommandLineGetFlag(Package
, L
"-?")) {
76 if (ShellCommandLineGetFlag(Package
, L
"-on")) {
80 ShellCommandSetEchoState(TRUE
);
81 } else if (ShellCommandLineGetFlag(Package
, L
"-off")) {
85 ShellCommandSetEchoState(FALSE
);
86 } else if (ShellCommandLineGetRawValue(Package
, 1) == NULL
) {
88 // output its current state
90 if (ShellCommandGetEchoState()) {
91 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_ECHO_ON
), gShellLevel3HiiHandle
);
93 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_ECHO_OFF
), gShellLevel3HiiHandle
);
100 ; ShellCommandLineGetRawValue(Package
, ParamCount
) != NULL
103 StrnCatGrow(&PrintString
, &Size
, ShellCommandLineGetRawValue(Package
, ParamCount
), 0);
104 if (ShellCommandLineGetRawValue(Package
, ParamCount
+1) != NULL
) {
105 StrnCatGrow(&PrintString
, &Size
, L
" ", 0);
108 ShellPrintEx(-1, -1, L
"%s\r\n", PrintString
);
109 SHELL_FREE_NON_NULL(PrintString
);
113 // free the command line package
115 ShellCommandLineFreeVarList (Package
);
118 return (ShellStatus
);