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/** @file
Main file for attrib shell level 2 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 "UefiShellLevel2CommandsLib.h"
/**
Print out each environment variable registered with the Shell 2.0 GUID.
If you spawn a pre 2.0 shell from the Shell 2.0 the environment variable may not carry through.
@retval STATUS_SUCCESS the printout was successful
@return any return code from GetNextVariableName except EFI_NOT_FOUND
**/
SHELL_STATUS
PrintAllShellEnvVars (
VOID
)
{
CONST CHAR16 *Value;
CONST CHAR16 *ConstEnvNameList;
ConstEnvNameList = gEfiShellProtocol->GetEnv (NULL);
if (ConstEnvNameList == NULL) {
return (SHELL_SUCCESS);
}
while (*ConstEnvNameList != CHAR_NULL) {
Value = gEfiShellProtocol->GetEnv (ConstEnvNameList);
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_SET_DISP), gShellLevel2HiiHandle, ConstEnvNameList, Value);
ConstEnvNameList += StrLen (ConstEnvNameList)+1;
}
return (SHELL_SUCCESS);
}
STATIC CONST SHELL_PARAM_ITEM SetParamList[] = {
{ L"-d", TypeValue },
{ L"-v", TypeFlag },
{ NULL, TypeMax }
};
/**
Function for 'set' 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
ShellCommandRunSet (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
LIST_ENTRY *Package;
CONST CHAR16 *KeyName;
CONST CHAR16 *Value;
CHAR16 *ProblemParam;
SHELL_STATUS ShellStatus;
ProblemParam = NULL;
ShellStatus = SHELL_SUCCESS;
//
// initialize the shell lib (we must be in non-auto-init...)
//
Status = ShellInitialize ();
ASSERT_EFI_ERROR (Status);
//
// Make sure globals are good...
//
Status = CommandInit ();
ASSERT_EFI_ERROR (Status);
//
// parse the command line
//
Status = ShellCommandLineParse (SetParamList, &Package, &ProblemParam, TRUE);
if (EFI_ERROR (Status)) {
if ((Status == EFI_VOLUME_CORRUPTED) && (ProblemParam != NULL)) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, L"set", ProblemParam);
FreePool (ProblemParam);
return (SHELL_INVALID_PARAMETER);
} else {
ASSERT (FALSE);
}
} else {
//
// check for "-?"
//
if (ShellCommandLineGetFlag (Package, L"-?")) {
ASSERT (FALSE);
} else if (ShellCommandLineGetRawValue (Package, 3) != NULL) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel2HiiHandle, L"set");
ShellStatus = SHELL_INVALID_PARAMETER;
} else if ((ShellCommandLineGetRawValue (Package, 1) != NULL) && ShellCommandLineGetFlag (Package, L"-d")) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel2HiiHandle, L"set");
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetFlag (Package, L"-d")) {
//
// delete a environment variable
//
KeyName = ShellCommandLineGetValue (Package, L"-d");
if (KeyName == NULL) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_NO_VALUE), gShellLevel2HiiHandle, L"set", L"-d");
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
Status = ShellSetEnvironmentVariable (KeyName, L"", ShellCommandLineGetFlag (Package, L"-v"));
if (EFI_ERROR (Status)) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_SET_ND), gShellLevel2HiiHandle, L"set", KeyName);
ShellStatus = SHELL_DEVICE_ERROR;
}
}
} else if (ShellCommandLineGetRawValue (Package, 1) == NULL) {
//
// print out all current environment variables
//
return (PrintAllShellEnvVars ());
} else {
//
// we are either printing one or assigning one
//
KeyName = ShellCommandLineGetRawValue (Package, 1);
Value = ShellCommandLineGetRawValue (Package, 2);
if ((KeyName != NULL) && (Value != NULL)) {
//
// assigning one
//
Status = ShellSetEnvironmentVariable (KeyName, Value, ShellCommandLineGetFlag (Package, L"-v"));
if (EFI_ERROR (Status)) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_SET_ERROR_SET), gShellLevel2HiiHandle, L"set", KeyName);
ShellStatus = (SHELL_STATUS)(Status & (~MAX_BIT));
}
} else {
if (KeyName != NULL) {
//
// print out value for this one only.
//
Value = ShellGetEnvironmentVariable (KeyName);
if (Value == NULL) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_SET_NF), gShellLevel2HiiHandle, L"set", KeyName);
ShellStatus = SHELL_SUCCESS;
} else {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_SET_DISP), gShellLevel2HiiHandle, KeyName, Value);
ShellStatus = SHELL_SUCCESS;
}
} else {
ASSERT (FALSE);
}
}
}
}
//
// free the command line package
//
ShellCommandLineFreeVarList (Package);
return (ShellStatus);
}
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