[patch] ShellPkg: Add check for "dump" parameter in "bcfg" command

[Dandan Bi <dandan.bi@intel.com>]

When user uses the command "bcfg driver|boot [dump [-v]]",
the number of command line value parameters (doesn't include the
flag) must be three. We can add this point to check whether using
this command correctly.

Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Jaben Carsey <jaben.carsey@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
---
 ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.c   | 4 ++++
 ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.uni | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.c b/ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.c
index 9baeecc..e2306bf 100644
--- a/ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.c
+++ b/ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.c
@@ -1294,10 +1294,14 @@ ShellCommandRunBcfg (
     if (ShellStatus == SHELL_SUCCESS && CurrentOperation.Target < BcfgTargetMax) {
       for (ParamNumber = 2 ; ParamNumber < ShellCommandLineGetCount(Package) && ShellStatus == SHELL_SUCCESS; ParamNumber++) {
         CurrentParam = ShellCommandLineGetRawValue(Package, ParamNumber);
         if        (gUnicodeCollation->StriColl(gUnicodeCollation, (CHAR16*)CurrentParam, L"dump") == 0)    {
           CurrentOperation.Type = BcfgTypeDump;
+          if (ShellCommandLineGetCount(Package) > 3) {
+            ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellBcfgHiiHandle, L"bcfg");
+            ShellStatus = SHELL_INVALID_PARAMETER;
+          }
         } else if (ShellCommandLineGetFlag(Package, L"-v")) {
           ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellBcfgHiiHandle, L"bcfg", L"-v (without dump)");  
           ShellStatus = SHELL_INVALID_PARAMETER;
         } else if (gUnicodeCollation->StriColl(gUnicodeCollation, (CHAR16*)CurrentParam, L"add") == 0)     {
           if ((ParamNumber + 3) >= ShellCommandLineGetCount(Package)) {
diff --git a/ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.uni b/ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.uni
index 282494b..7668e49 100644
--- a/ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.uni
+++ b/ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.uni
@@ -1,9 +1,9 @@
 // /**
 //
 // (C) Copyright 2014-2015 Hewlett-Packard Development Company, L.P.<BR>
-// Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>
+// Copyright (c) 2010 - 2016, Intel Corporation. All rights reserved.<BR>
 // This program and the accompanying materials
 // are licensed and made available under the terms and conditions of the BSD License
 // which accompanies this distribution. The full text of the license may be found at
 // http://opensource.org/licenses/bsd-license.php
 //
@@ -30,10 +30,11 @@
 #string STR_GEN_NO_VALUE          #language en-US "%H%s%N: Missing argument for flag - '%H%s%N'\r\n"
 #string STR_GEN_PARAM_INV         #language en-US "%H%s%N: Invalid argument - '%H%s%N'\r\n"
 #string STR_GEN_NO_DRIVER_BOOT    #language en-US "%H%s%N: Driver or Boot must be selected.\r\n"
 #string STR_GEN_BOOT_ONLY         #language en-US "%H%s%N: Boot must be selected for hot key options.\r\n"
 #string STR_GEN_TOO_FEW           #language en-US "%H%s%N: Too few arguments.\r\n"
+#string STR_GEN_TOO_MANY          #language en-US "%H%s%N: Too many arguments\r\n"
 #string STR_GEN_FILE_OPEN_FAIL    #language en-US "%H%s%N: Cannot open file - '%H%s%N'\r\n"
 #string STR_GEN_FIND_FAIL         #language en-US "%H%s%N: File not found - '%H%s%N'\r\n"
 #string STR_GEN_OUT_MEM           #language en-US "%H%s%N: Memory allocation was not successful.\r\n"
 #string STR_BCFG_WRITE_FAIL       #language en-US "%H%s%N: Unable to write to '%H%s%N'\r\n"
 #string STR_BCFG_READ_FAIL        #language en-US "%H%s%N: Unable to read from '%H%s%N'\r\n"
-- 
1.9.5.msysgit.1