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 - 2018, Intel Corporation. All rights reserved. <BR>
6 SPDX-License-Identifier: BSD-2-Clause-Patent
7
8 **/
9
10 #include "UefiShellLevel3CommandsLib.h"
11
12 STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
13 {L"-q", TypeFlag},
14 {NULL, TypeMax}
15 };
16
17 /**
18 Function for 'pause' command.
19
20 @param[in] ImageHandle Handle to the Image (NULL if Internal).
21 @param[in] SystemTable Pointer to the System Table (NULL if Internal).
22 **/
23 SHELL_STATUS
24 EFIAPI
ShellCommandRunPause(IN EFI_HANDLE ImageHandle,IN EFI_SYSTEM_TABLE * SystemTable)25 ShellCommandRunPause (
26 IN EFI_HANDLE ImageHandle,
27 IN EFI_SYSTEM_TABLE *SystemTable
28 )
29 {
30 EFI_STATUS Status;
31 LIST_ENTRY *Package;
32 CHAR16 *ProblemParam;
33 SHELL_STATUS ShellStatus;
34 SHELL_PROMPT_RESPONSE *Resp;
35
36 ProblemParam = NULL;
37 ShellStatus = SHELL_SUCCESS;
38 Resp = NULL;
39
40 //
41 // initialize the shell lib (we must be in non-auto-init...)
42 //
43 Status = ShellInitialize();
44 ASSERT_EFI_ERROR(Status);
45
46 Status = CommandInit();
47 ASSERT_EFI_ERROR(Status);
48
49 if (!gEfiShellProtocol->BatchIsActive()) {
50 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_NO_SCRIPT), gShellLevel3HiiHandle, L"pause");
51 return (SHELL_UNSUPPORTED);
52 }
53
54 //
55 // parse the command line
56 //
57 Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
58 if (EFI_ERROR(Status)) {
59 if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
60 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel3HiiHandle, L"pause", ProblemParam);
61 FreePool(ProblemParam);
62 ShellStatus = SHELL_INVALID_PARAMETER;
63 } else {
64 ASSERT(FALSE);
65 }
66 } else {
67 //
68 // check for "-?"
69 //
70 if (ShellCommandLineGetFlag(Package, L"-?")) {
71 ASSERT(FALSE);
72 } else if (ShellCommandLineGetRawValue(Package, 1) != NULL) {
73 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel3HiiHandle, L"pause");
74 ShellStatus = SHELL_INVALID_PARAMETER;
75 } else {
76 if (!ShellCommandLineGetFlag(Package, L"-q")) {
77 Status = ShellPromptForResponseHii(ShellPromptResponseTypeQuitContinue, STRING_TOKEN (STR_PAUSE_PROMPT), gShellLevel3HiiHandle, (VOID**)&Resp);
78 } else {
79 Status = ShellPromptForResponse(ShellPromptResponseTypeQuitContinue, NULL, (VOID**)&Resp);
80 }
81
82 if (EFI_ERROR(Status) || Resp == NULL || *Resp == ShellPromptResponseQuit) {
83 ShellCommandRegisterExit(TRUE, 0);
84 ShellStatus = SHELL_ABORTED;
85 }
86
87 if (Resp != NULL) {
88 FreePool(Resp);
89 }
90 }
91
92 //
93 // free the command line package
94 //
95 ShellCommandLineFreeVarList (Package);
96 }
97
98
99 return (ShellStatus);
100 }
101
102