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Hao Wu d727614c91 ShellPkg/UefiShellLib: Avoid reading undefined content before string 
https://bugzilla.tianocore.org/show_bug.cgi?id=566

In function InternalShellPrintWorker(), if the string in variable
'mPostReplaceFormat2' starts with character L'%', the following
expression:

*(ResumeLocation-1) == L'^' at line 2831

will read an undefined value before the starting of string
'mPostReplaceFormat2'.

This commit adds additional logic to avoid reading undefined content.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
 		2017-05-24 13:17:51 +08:00
..
Application ShellPkg/Shell: eliminate double-free in RunSplitCommand() 2017-04-26 12:12:23 +02:00
Include ShellPkg/HandleParsingLib: Fix coding style issue 2017-01-19 10:14:26 +08:00
Library ShellPkg/UefiShellLib: Avoid reading undefined content before string 2017-05-24 13:17:51 +08:00
Contributions.txt */Contributions.txt: Update example email address 2015-02-03 17:29:14 +00:00
License.txt Update copyright format 2012-04-24 06:49:39 +00:00
Readme.txt ShellPkg: Updated version number. 2011-12-13 18:45:44 +00:00
ShellPkg.dec ShellPkg: Update package version to 1.01 2017-05-03 10:44:55 +08:00
ShellPkg.dsc ShellPkg: Update package version to 1.01 2017-05-03 10:44:55 +08:00

Readme.txt

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============================================================================
                                 OVERVIEW
============================================================================
The UEFI 2.0 shell provides a standard pre-boot command line processor.
It is similar to the EDK EFI Shell or a *nix command line parser.

============================================================================
                    HOW TO INCORPORATE THIS SHELL INTO NT32
============================================================================
The instructions below are included as a sample and template on how a 
developer may integrate this code into an existing platform:

1. Add this shell build to the NT32 build:
   Add the shell.inf to the [components] section as it is in the ShellPkg.dsc.

2. Update system PCDs to support this new module
   Update the PCD as follows using the Shell's PCD:
   gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdShellFile|{ 0x83, 0xA5, 0x04, 0x7C, 0x3E, 0x9E, 0x1C, 0x4F, 0xAD, 0x65, 0xE0, 0x52, 0x68, 0xD0, 0xB4, 0xD1 }

3. Remove the old shell from the NT32 Firmware list
   Remove the FILE APPLICATION section for the old shell.

4. Add this shell to the NT32 firmware list
   Add the Shell.INF to the end of the list of DXE modules.

5. Build NT32


============================================================================