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ShellPkg: Make Argv[0] the full file path of the command 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Brendan Jackman <Brendan.Jackman@arm.com>
Reviewed-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@15223 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Brendan Jackman 2014-02-11 22:45:18 +00:00 committed by jcarsey
parent da92bf853f
commit 3e2b20a1ad
1 changed files with 36 additions and 0 deletions
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36
ShellPkg/Application/Shell/ShellProtocol.c
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@ -1396,6 +1396,7 @@ InternalShellExecuteDevicePath(
EFI_SHELL_PARAMETERS_PROTOCOL ShellParamsProtocol;
UINTN InternalExitDataSize;
UINTN *ExitDataSizePtr;
CHAR16 *ImagePath;
// ExitDataSize is not OPTIONAL for gBS->BootServices, provide somewhere for
// it to be dumped if the caller doesn't want it.
@ -1464,6 +1465,33 @@ InternalShellExecuteDevicePath(
ShellParamsProtocol.StdErr = ShellInfoObject.NewShellParametersProtocol->StdErr;
Status = UpdateArgcArgv(&ShellParamsProtocol, CommandLine, NULL, NULL);
ASSERT_EFI_ERROR(Status);
//
// Replace Argv[0] with the full path of the binary we're executing:
// If the command line was "foo", the binary might be called "foo.efi".
// "The first entry in [Argv] is always the full file path of the
// executable" - UEFI Shell Spec section 2.3
//
ImagePath = EfiShellGetFilePathFromDevicePath (DevicePath);
// The image we're executing isn't necessarily in a filesystem - it might
// be memory mapped. In this case EfiShellGetFilePathFromDevicePath will
// return NULL, and we'll leave Argv[0] as UpdateArgcArgv set it.
if (ImagePath != NULL) {
if (ShellParamsProtocol.Argv == NULL) {
// Command line was empty or null.
// (UpdateArgcArgv sets Argv to NULL when CommandLine is "" or NULL)
ShellParamsProtocol.Argv = AllocatePool (sizeof (CHAR16 *));
if (ShellParamsProtocol.Argv == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Cleanup;
}
ShellParamsProtocol.Argc = 1;
} else {
// Free the string UpdateArgcArgv put in Argv[0];
FreePool (ShellParamsProtocol.Argv[0]);
}
ShellParamsProtocol.Argv[0] = ImagePath;
}
Status = gBS->InstallProtocolInterface(&NewHandle, &gEfiShellParametersProtocolGuid, EFI_NATIVE_INTERFACE, &ShellParamsProtocol);
ASSERT_EFI_ERROR(Status);
@ -1706,6 +1734,7 @@ EfiShellRemoveDupInFileList(
{
EFI_SHELL_FILE_INFO *ShellFileListItem;
EFI_SHELL_FILE_INFO *ShellFileListItem2;
EFI_SHELL_FILE_INFO *TempNode;
if (FileList == NULL || *FileList == NULL) {
return (EFI_INVALID_PARAMETER);
@ -1723,8 +1752,15 @@ EfiShellRemoveDupInFileList(
(CHAR16*)ShellFileListItem->FullName,
(CHAR16*)ShellFileListItem2->FullName) == 0
){
TempNode = (EFI_SHELL_FILE_INFO *)GetPreviousNode(
&(*FileList)->Link,
&ShellFileListItem2->Link
);
RemoveEntryList(&ShellFileListItem2->Link);
InternalFreeShellFileInfoNode(ShellFileListItem2);
// Set ShellFileListItem2 to PreviousNode so we don't access Freed
// memory in GetNextNode in the loop expression above.
ShellFileListItem2 = TempNode;
}
}
}