1 /** @file
2 Main file for Pause shell level 3 function.
3
4 (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
5 Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved. <BR>
6 This program and the accompanying materials
7 are licensed and made available under the terms and conditions of the BSD License
8 which accompanies this distribution. The full text of the license may be found at
9 http://opensource.org/licenses/bsd-license.php
10
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
13
14 **/
15
16 #include "UefiShellLevel3CommandsLib.h"
17
18 STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
19 {L"-q", TypeFlag},
20 {NULL, TypeMax}
21 };
22
23 /**
24 Function for 'pause' command.
25
26 @param[in] ImageHandle Handle to the Image (NULL if Internal).
27 @param[in] SystemTable Pointer to the System Table (NULL if Internal).
28 **/
29 SHELL_STATUS
30 EFIAPI
ShellCommandRunPause(IN EFI_HANDLE ImageHandle,IN EFI_SYSTEM_TABLE * SystemTable)31 ShellCommandRunPause (
32 IN EFI_HANDLE ImageHandle,
33 IN EFI_SYSTEM_TABLE *SystemTable
34 )
35 {
36 EFI_STATUS Status;
37 LIST_ENTRY *Package;
38 CHAR16 *ProblemParam;
39 SHELL_STATUS ShellStatus;
40 SHELL_PROMPT_RESPONSE *Resp;
41
42 ProblemParam = NULL;
43 ShellStatus = SHELL_SUCCESS;
44 Resp = NULL;
45
46 //
47 // initialize the shell lib (we must be in non-auto-init...)
48 //
49 Status = ShellInitialize();
50 ASSERT_EFI_ERROR(Status);
51
52 Status = CommandInit();
53 ASSERT_EFI_ERROR(Status);
54
55 if (!gEfiShellProtocol->BatchIsActive()) {
56 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_NO_SCRIPT), gShellLevel3HiiHandle, L"pause");
57 return (SHELL_UNSUPPORTED);
58 }
59
60 //
61 // parse the command line
62 //
63 Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
64 if (EFI_ERROR(Status)) {
65 if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
66 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel3HiiHandle, L"pause", ProblemParam);
67 FreePool(ProblemParam);
68 ShellStatus = SHELL_INVALID_PARAMETER;
69 } else {
70 ASSERT(FALSE);
71 }
72 } else {
73 //
74 // check for "-?"
75 //
76 if (ShellCommandLineGetFlag(Package, L"-?")) {
77 ASSERT(FALSE);
78 } else if (ShellCommandLineGetRawValue(Package, 1) != NULL) {
79 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel3HiiHandle, L"pause");
80 ShellStatus = SHELL_INVALID_PARAMETER;
81 } else {
82 if (!ShellCommandLineGetFlag(Package, L"-q")) {
83 Status = ShellPromptForResponseHii(ShellPromptResponseTypeQuitContinue, STRING_TOKEN (STR_PAUSE_PROMPT), gShellLevel3HiiHandle, (VOID**)&Resp);
84 } else {
85 Status = ShellPromptForResponse(ShellPromptResponseTypeQuitContinue, NULL, (VOID**)&Resp);
86 }
87
88 if (EFI_ERROR(Status) || Resp == NULL || *Resp == ShellPromptResponseQuit) {
89 ShellCommandRegisterExit(TRUE, 0);
90 ShellStatus = SHELL_ABORTED;
91 }
92
93 if (Resp != NULL) {
94 FreePool(Resp);
95 }
96 }
97
98 //
99 // free the command line package
100 //
101 ShellCommandLineFreeVarList (Package);
102 }
103
104
105 return (ShellStatus);
106 }
107
108