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2013-12-20ShellPkg: pre-verify split commandsJaben Carsey
This makes sure that all parts of commands split via pipe operation are valid before starting. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15011 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-19ShellPkg: API name typo.Jaben Carsey
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15010 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-19ShellPkg: fix whitespace character trimmingJaben Carsey
This makes TrimSpaces() trim tab characters off the end of the string also (not just the beginning). Also updates loop to prevent buffer underrun. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15009 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-19ShellPkg: CTRL-C stops a running script at the same timeJaben Carsey
This makes CTRL-C stop a running script after trying to stop the command. And adds comments to describe the behavior more clearly. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15008 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-19ShellPkg: Refactor the RunCommand APIJaben Carsey
This almost completely splits the RunCommand API into sub-routines. - the ProcessCommandLineToFinal API handles replacing the a found alias and any found environment variables. This will redirect "-?" to "help", if necessary. Upon return, the command line is complete and finalized. It may still have redirection in it, and those will get chopped off later (but no further modifications occur). - the SetupAndRunCommandOrFile API handles updating and then later restoring StdIn, StdOut, and StdErr (and removing their information from the command line). It will call into RunCommandOrFile. - the RunCommandOrFile API divides the logic to RunInternalCommand, RunScriptFile, or running an .EFI file directly. - the RunInternalCommand API handles updating and then restoring Argc and Argv. It will run the internal command in between. - the SetLastError API handles updating of the environment variable "lasterror" - the DoHelpUpdateArgcArgv was changed to DoHelpUpdate and now works on the raw command line and not the argc/argv. This allows the processing to be moved earlier. Note this change has the following positive side effects (this eliminates unnecessary step): - Argc/Argv are only updated for internal commands (as they are library based) - no Argv/Argc/StdIn/StdOut/StdErr processing is done for file system changes. - The ProcessCommandLineToFinal API exists and it's critical to the ability to correctly pre-process split ("|") command lines ahead of time to verify their correctness. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15007 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-19Converse the return value from 'int' to 'BOOLEAN' for function ↵Shumin Qiu
‘ContainsSplit’ in Shell.c. Signed-off-by: Shumin Qiu <shumin.qiu@intel.com> Reviewed-by: Ni, Ruiyu <ruiyu.ni@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15006 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-17ShellPkg: Add missing function header commentsJaben Carsey
I found that some function headers had insufficient/incorrect information. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14998 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-16Add a new line to initialize the variable “PassThruProtocol” in ↵Shumin Qiu
ConsoleWrapers.c to ensure the initialization not to be a part of its declaration. Signed-off-by: Shumin Qiu <shumin.qiu@intel.com> Reviewed-by: Eric Dong <eric.dong@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14989 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-13ShellPkg: add error messages into functionJaben Carsey
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14986 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-13ShellPkg: Refactor updating command line for help useJaben Carsey
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14985 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-13ShellPkg: Refactor change to current file systemJaben Carsey
This moves the initialization for handling file system changes into a separate function. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14983 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-13ShellPkg: Refactor Split/Pipe based command linesJaben Carsey
This moves the initialization for handling command lines with pipe ‘|’ into a separate function. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14982 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-13ShellPkg: add API for determining operation typeJaben Carsey
There are no callers for this new API yet. They will be added in the next commits. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14975 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-12ShellPkg: Refactor Variable replacement into separate functionJaben Carsey
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14974 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-12ShellPkg: Refactor Alias replacement into separate functionJaben Carsey
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14973 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-12ShellPkg: refactor out leading and trailing space trimmingJaben Carsey
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14972 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-12ShellPkg: typo in the last commit.Jaben Carsey
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14971 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-12ShellPkg: Refactor out the searching for pipe charactersJaben Carsey
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14969 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-10ShellPkg: Refactor Pipe handlingJaben Carsey
This moves some logic for handling command lines with pipe ‘|’ into a separate function. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14958 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-09Follow Shell specification to make sure the “command.man” file is always ↵Shumin Qiu
used no matter “command.efi -?” or “command -?” is typed. Signed-off-by: Shumin Qiu <shumin.qiu@intel.com> Reviewed-by: Jaben Carsey <Jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14947 6f19259b-4bc3-4df7-8a09-765794883524
2013-12-02ShellPkg: Unregister all registrationsJaben Carsey
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14925 6f19259b-4bc3-4df7-8a09-765794883524
2013-11-22ShellPkg: Remove trailing \r\n when redirect to env variable (EX: use ">v")Chris Phillips
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chris Phillips <chrisp@hp.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14891 6f19259b-4bc3-4df7-8a09-765794883524
2013-11-15ShellPkg: Fix help MAN file searchingJaben Carsey
Make sure that “help App” and “help App.EFI” work the same by removing “.efi” (case insensitive) from the end of the string before searching for MAN file. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14853 6f19259b-4bc3-4df7-8a09-765794883524
2013-11-15ShellPkg: Skip leading tabs when processing command line and scriptsChris Phillips
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chris Phillips <chrisp@hp.com> reviewed-by: Jaben Carsey <jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14850 6f19259b-4bc3-4df7-8a09-765794883524
2013-11-15ShellPkg: verify that leading and trailing % are removed from variable names ↵Jaben Carsey
when doing command line redirection to an environment variable. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14849 6f19259b-4bc3-4df7-8a09-765794883524
2013-10-29ShellPkg: Properly set lasterror environment variableChris Phillips
- Set lasterror value based on platform width - Use “lasterror” rather than “Lasterror” for variable name to match Shell Specification - Set lasterror value when a binary or script file is not found Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chris Phillips <chrisp@hp.com> Reviewed-by: Jaben Carsey <Jaben.Carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14816 6f19259b-4bc3-4df7-8a09-765794883524
2013-10-24ShellPkg: Fixes the shell so output redirection works for the 'mode' commandChris Phillips
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chris Phillips <chrisp@hp.com> reviewed-by: Jaben Carsey <Jaben.Carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14800 6f19259b-4bc3-4df7-8a09-765794883524
2013-10-24ShellPkg: Stop running command when page break quitChris Phillips
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chris Phillips <chrisp@hp.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14799 6f19259b-4bc3-4df7-8a09-765794883524
2013-10-22ShellPkg: Fix copy load option error.Eric Dong
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Eric Dong <eric.dong@intel.com> Reviewed-by: Jaben Carsey <Jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14795 6f19259b-4bc3-4df7-8a09-765794883524
2013-10-18ShellPkg: Fixes for shell application launch, argument handling, and version ↵Chris Phillips
output: - Fixes shell application launch version output to match ‘ver’ command, as specified by the UEFI Shell spec. - Adds PcdShellSupplier for <shell-supplier-specific-data> line of version output. Defaulted to “EDK II”. - Display only 1 startup.nsh countdown line per second instead of 10 per second. - Fix issue where command line is just 1 or more “ “ characters and displayed garbage. - Fix for @echo –off and @echo –on to not restore echo state Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chris Phillips <chrisp@hp.com> reviewed-by: Jaben Carsey <Jaben.Carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14784 6f19259b-4bc3-4df7-8a09-765794883524
2013-09-05Refine the select language logic.Eric Dong
Signed-off-by: Eric Dong <eric.dong@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Jaben Carsey <Jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14629 6f19259b-4bc3-4df7-8a09-765794883524
2013-08-28ShellPkg: Fix LastError environment variable truncationRobert Matthews
-Fixes LastError environment variable being truncated to 32 bits on 64 bit systems -Fixes possible buffer overrun issue with LastError string value Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Robert Matthews <robert.matthews@hp.com> Reviewed-by: Jaben Carsey <Jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14608 6f19259b-4bc3-4df7-8a09-765794883524
2013-08-21ShellPkg: update behavior with undefined environment variablesJaben Carsey
Undefined environment variables are now removed during script execution. Excepted environment variables are now correctly un-excepted right before processing continues Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <Jaben.carsey@intel.com> reviewed-by: Matthews, Robert <Robert.Matthews@hp.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14585 6f19259b-4bc3-4df7-8a09-765794883524
2013-07-30Fix GCC build failure.Ruiyu Ni
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14519 6f19259b-4bc3-4df7-8a09-765794883524
2013-07-26Update all the code to consume the ConvertDevicePathToText, ↵Ruiyu Ni
ConvertDevicePathNodeToText, ConvertTextToDevicePath and ConvertTextToDeviceNode APIs in DevicePathLib. Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> Reviewed-by: Elvin Li <elvin.li@intel.com> Reviewed-by: Eric Dong <eric.dong@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Guo Dong <guo.dong@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14505 6f19259b-4bc3-4df7-8a09-765794883524
2013-06-27ShellPkg: make automatically created shells quit automaticallyjaben carsey
This creates a new parameter to this shell implementation “_exit” that causes the shell to automatically exit after running the initial specified command line. This also automatically uses that command in the Execute() API. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: jaben carsey <jaben.carsey@intel.com> Reviewed-by: Samer El-Haj-Mahmoud <elhaj@hp.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14444 6f19259b-4bc3-4df7-8a09-765794883524
2013-06-11ShellPkg: Fix ARM build errors.jcarsey
submitted-by: Olivier Martin olivier.martin@arm.com> reviewed-by: Jaben Carsey <Jaben.Carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14400 6f19259b-4bc3-4df7-8a09-765794883524
2013-05-07ShellPkg: Fixed build error 'variable set but not used'jcarsey
GCC toolchain cannot build ShellPkg. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Harry Liebel <Harry.Liebel@arm.com> Signed-off-by: Olivier Martin <Olivier.Martin@arm.com> Reviewed-by: Jaben Carsey <Jaben.Carsey@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14326 6f19259b-4bc3-4df7-8a09-765794883524
2013-01-17ShellPkg: Fix pointer initialization error of “ShellOpt” Shell ↵jcarsey
environment variable Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Samer El-Haj-Mahmoud elhaj@hp.com Reviewed-by: jaben carsey <jaben.carsey@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14064 6f19259b-4bc3-4df7-8a09-765794883524
2012-12-03ShellPkg: Remove “2.0” prefix text from shell prompt.jcarsey
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chris Phillips <chrisp@hp.com> reviewed-by: Jaben Carsey <jaben.carsey@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13982 6f19259b-4bc3-4df7-8a09-765794883524
2012-11-14ShellPkg: Fix line responsible for deleting “cwd” variable when exit shell.jcarsey
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chris Phillips <chrisp@hp.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13943 6f19259b-4bc3-4df7-8a09-765794883524
2012-11-13ShellPkg: Clean up header file usage.jcarsey
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13939 6f19259b-4bc3-4df7-8a09-765794883524
2012-11-13ShellPkg: Correct 3 places where memory was not being properly released by ↵jcarsey
the shell. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com> Reviewed-by: Liu, Jiang A <jiang.a.liu@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13938 6f19259b-4bc3-4df7-8a09-765794883524
2012-10-11Add missing braces around initializer.lzeng14
Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Qian Ouyang <qian.ouyang@intel.com> Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> Reviewed-by: Jeff Fan <jeff.fan@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13817 6f19259b-4bc3-4df7-8a09-765794883524
2012-09-07Fix display color error when scroll up/down the screen.ydong10
Signed-off-by: Eric Dong <eric.dong@intel.com> Reviewed-by: Jaben Carsey <Jaben.carsey@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13705 6f19259b-4bc3-4df7-8a09-765794883524
2012-08-17Update the "ConErr" related variable name to the new one "ErrOut".ydong10
Signed-off-by: Eric Dong <eric.dong@intel.com> Reviewed-by: Jaben Carsey <Jaben.carsey@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13641 6f19259b-4bc3-4df7-8a09-765794883524
2012-08-07Fix a width count error in ClearScreen function.ydong10
Signed-off-by: Eric Dong <eric.dong@intel.com> Reviewed-by: Jaben Carsey <Jaben.carsey@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13596 6f19259b-4bc3-4df7-8a09-765794883524
2012-07-30Change the type of NotifyHandle from EFI_HANDLE to VOID * for SimpleTextInEx ↵niruiyu
protocol. Clean up the code to remove unnecessary NotifyHandle in the private data structure. Signed-off-by: Ruiyu Ni<ruiyu.ni@intel.com> Reviewed-by: Elvin Li<elvin.li@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13565 6f19259b-4bc3-4df7-8a09-765794883524
2012-07-23Add logic to check the execution break flag before executing the next ↵ydong10
command in a script file. Signed-off-by: Eric Dong <eric.dong@intel.com> Reviewed-by: Jaben carsey <Jaben.carsey@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13547 6f19259b-4bc3-4df7-8a09-765794883524
2012-05-22ShellPkg: Enable Ctrl-C characters to be processed over serial interfaces ↵jcarsey
that do not pass control key modifiers (like SimpleTextInOutSerial) Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Eugene Cohen eugene@hp.com reviewed-by: Jaben Carsey jaben.carsey@intel.com git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13349 6f19259b-4bc3-4df7-8a09-765794883524