1 /** @file
2 Main file for attrib shell level 2 function.
3
4 (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
5 (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
6 Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved. <BR>
7 This program and the accompanying materials
8 are licensed and made available under the terms and conditions of the BSD License
9 which accompanies this distribution. The full text of the license may be found at
10 http://opensource.org/licenses/bsd-license.php
11
12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
14
15 **/
16
17 #include "UefiShellLevel3CommandsLib.h"
18
19 STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
20 {L"-sfo", TypeFlag},
21 {NULL, TypeMax}
22 };
23
24 /**
25 Function for 'cls' command.
26
27 @param[in] ImageHandle Handle to the Image (NULL if Internal).
28 @param[in] SystemTable Pointer to the System Table (NULL if Internal).
29 **/
30 SHELL_STATUS
31 EFIAPI
ShellCommandRunCls(IN EFI_HANDLE ImageHandle,IN EFI_SYSTEM_TABLE * SystemTable)32 ShellCommandRunCls (
33 IN EFI_HANDLE ImageHandle,
34 IN EFI_SYSTEM_TABLE *SystemTable
35 )
36 {
37 EFI_STATUS Status;
38 LIST_ENTRY *Package;
39 UINTN Background;
40 UINTN Foreground;
41 CHAR16 *ProblemParam;
42 SHELL_STATUS ShellStatus;
43 CONST CHAR16 *BackColorStr;
44 CONST CHAR16 *ForeColorStr;
45
46 //
47 // Initialize variables
48 //
49 ShellStatus = SHELL_SUCCESS;
50 ProblemParam = NULL;
51 Background = 0;
52 Foreground = 0;
53
54 //
55 // initialize the shell lib (we must be in non-auto-init...)
56 //
57 Status = ShellInitialize();
58 ASSERT_EFI_ERROR(Status);
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"cls", 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 (ShellCommandLineGetFlag (Package, L"-sfo")) {
79 if (ShellCommandLineGetCount (Package) > 1) {
80 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel3HiiHandle, L"cls");
81 ShellStatus = SHELL_INVALID_PARAMETER;
82 } else {
83 Background = (gST->ConOut->Mode->Attribute >> 4) & 0x7;
84 Foreground = gST->ConOut->Mode->Attribute & 0x0F;
85 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_SFO_HEADER), gShellLevel3HiiHandle, L"cls");
86 ShellPrintHiiEx (
87 -1,
88 -1,
89 NULL,
90 STRING_TOKEN (STR_CLS_OUTPUT_SFO),
91 gShellLevel3HiiHandle,
92 gST->ConOut->Mode->Attribute,
93 Foreground,
94 Background
95 );
96 }
97 } else {
98 //
99 // If there are 0 value parameters, clear sceen
100 //
101 BackColorStr = ShellCommandLineGetRawValue (Package, 1);
102 ForeColorStr = ShellCommandLineGetRawValue (Package, 2);
103
104 if (BackColorStr == NULL && ForeColorStr == NULL) {
105 //
106 // clear screen
107 //
108 gST->ConOut->ClearScreen (gST->ConOut);
109 } else if (ShellCommandLineGetCount (Package) > 3) {
110 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel3HiiHandle, L"cls");
111 ShellStatus = SHELL_INVALID_PARAMETER;
112 } else {
113 if (BackColorStr != NULL) {
114 if ((ShellStrToUintn (BackColorStr) > 7) || (StrLen (BackColorStr) > 1) || (!ShellIsDecimalDigitCharacter (*BackColorStr))) {
115 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellLevel3HiiHandle, L"cls", BackColorStr);
116 ShellStatus = SHELL_INVALID_PARAMETER;
117 } else {
118 switch (ShellStrToUintn (BackColorStr)) {
119 case 0:
120 Background = EFI_BACKGROUND_BLACK;
121 break;
122 case 1:
123 Background = EFI_BACKGROUND_BLUE;
124 break;
125 case 2:
126 Background = EFI_BACKGROUND_GREEN;
127 break;
128 case 3:
129 Background = EFI_BACKGROUND_CYAN;
130 break;
131 case 4:
132 Background = EFI_BACKGROUND_RED;
133 break;
134 case 5:
135 Background = EFI_BACKGROUND_MAGENTA;
136 break;
137 case 6:
138 Background = EFI_BACKGROUND_BROWN;
139 break;
140 case 7:
141 Background = EFI_BACKGROUND_LIGHTGRAY;
142 break;
143 }
144
145 if (ForeColorStr != NULL) {
146 if ((ShellStrToUintn (ForeColorStr) > 15) || (StrLen (ForeColorStr) > 2) || (!ShellIsDecimalDigitCharacter (*ForeColorStr))) {
147 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellLevel3HiiHandle, L"cls", ForeColorStr);
148 ShellStatus = SHELL_INVALID_PARAMETER;
149 } else {
150 switch (ShellStrToUintn (ForeColorStr)) {
151 case 0:
152 Foreground = EFI_BLACK;
153 break;
154 case 1:
155 Foreground = EFI_BLUE;
156 break;
157 case 2:
158 Foreground = EFI_GREEN;
159 break;
160 case 3:
161 Foreground = EFI_CYAN;
162 break;
163 case 4:
164 Foreground = EFI_RED;
165 break;
166 case 5:
167 Foreground = EFI_MAGENTA;
168 break;
169 case 6:
170 Foreground = EFI_BROWN;
171 break;
172 case 7:
173 Foreground = EFI_LIGHTGRAY;
174 break;
175 case 8:
176 Foreground = EFI_DARKGRAY;
177 break;
178 case 9:
179 Foreground = EFI_LIGHTBLUE;
180 break;
181 case 10:
182 Foreground = EFI_LIGHTGREEN;
183 break;
184 case 11:
185 Foreground = EFI_LIGHTCYAN;
186 break;
187 case 12:
188 Foreground = EFI_LIGHTRED;
189 break;
190 case 13:
191 Foreground = EFI_LIGHTMAGENTA;
192 break;
193 case 14:
194 Foreground = EFI_YELLOW;
195 break;
196 case 15:
197 Foreground = EFI_WHITE;
198 break;
199 }
200 }
201 } else {
202 //
203 // Since foreground color is not modified, so retain
204 // existing foreground color without any change to it.
205 //
206 Foreground = gST->ConOut->Mode->Attribute & 0x0F;
207 }
208
209 if (ShellStatus == SHELL_SUCCESS) {
210 Status = gST->ConOut->SetAttribute (gST->ConOut, (Foreground | Background) & 0x7F);
211 ASSERT_EFI_ERROR (Status);
212 Status = gST->ConOut->ClearScreen (gST->ConOut);
213 ASSERT_EFI_ERROR (Status);
214 }
215 }
216 }
217 }
218 }
219 }
220 //
221 // free the command line package
222 //
223 ShellCommandLineFreeVarList (Package);
224
225 //
226 // return the status
227 //
228 return (ShellStatus);
229 }
230
231