audk/ShellPkg/Library/UefiShellLevel3CommandsLib/Pause.c

100 lines
2.9 KiB
C

/** @file
Main file for Pause shell level 3 function.
(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved. <BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "UefiShellLevel3CommandsLib.h"
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
{ L"-q", TypeFlag },
{ NULL, TypeMax }
};
/**
Function for 'pause' 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
ShellCommandRunPause (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
LIST_ENTRY *Package;
CHAR16 *ProblemParam;
SHELL_STATUS ShellStatus;
SHELL_PROMPT_RESPONSE *Resp;
ProblemParam = NULL;
ShellStatus = SHELL_SUCCESS;
Resp = NULL;
//
// initialize the shell lib (we must be in non-auto-init...)
//
Status = ShellInitialize ();
ASSERT_EFI_ERROR (Status);
Status = CommandInit ();
ASSERT_EFI_ERROR (Status);
if (!gEfiShellProtocol->BatchIsActive ()) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_NO_SCRIPT), gShellLevel3HiiHandle, L"pause");
return (SHELL_UNSUPPORTED);
}
//
// parse the command line
//
Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
if (EFI_ERROR (Status)) {
if ((Status == EFI_VOLUME_CORRUPTED) && (ProblemParam != NULL)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel3HiiHandle, L"pause", ProblemParam);
FreePool (ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ASSERT (FALSE);
}
} else {
//
// check for "-?"
//
if (ShellCommandLineGetFlag (Package, L"-?")) {
ASSERT (FALSE);
} else if (ShellCommandLineGetRawValue (Package, 1) != NULL) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel3HiiHandle, L"pause");
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
if (!ShellCommandLineGetFlag (Package, L"-q")) {
Status = ShellPromptForResponseHii (ShellPromptResponseTypeQuitContinue, STRING_TOKEN (STR_PAUSE_PROMPT), gShellLevel3HiiHandle, (VOID **)&Resp);
} else {
Status = ShellPromptForResponse (ShellPromptResponseTypeQuitContinue, NULL, (VOID **)&Resp);
}
if (EFI_ERROR (Status) || (Resp == NULL) || (*Resp == ShellPromptResponseQuit)) {
ShellCommandRegisterExit (TRUE, 0);
ShellStatus = SHELL_ABORTED;
}
if (Resp != NULL) {
FreePool (Resp);
}
}
//
// free the command line package
//
ShellCommandLineFreeVarList (Package);
}
return (ShellStatus);
}