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ShellPkg/alias: Fix bug to support upper-case alias 

alias in UEFI Shell is case insensitive.
Old code saves the alias to variable storage without
converting the alias to lower-case, which results
upper case alias setting doesn't work.
The patch converts the alias to lower case before saving
to variable storage.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Tapan Shah <tapandshah@hpe.com>
This commit is contained in:
Ruiyu Ni 2017-06-01 22:09:14 +08:00
parent a04ec6d9f7
commit 7ec69844b8
1 changed files with 26 additions and 26 deletions
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46
ShellPkg/Application/Shell/ShellProtocol.c
View File

@ -3463,40 +3463,40 @@ InternalSetAlias(
{
EFI_STATUS Status;
CHAR16 *AliasLower;
BOOLEAN DeleteAlias;
DeleteAlias = FALSE;
if (Alias == NULL) {
//
// We must be trying to remove one if Alias is NULL
// remove an alias (but passed in COMMAND parameter)
//
Alias = Command;
DeleteAlias = TRUE;
}
ASSERT (Alias != NULL);
//
// Convert to lowercase to make aliases case-insensitive
if (Alias != NULL) {
//
AliasLower = AllocateCopyPool (StrSize (Alias), Alias);
if (AliasLower == NULL) {
return EFI_OUT_OF_RESOURCES;
}
ToLower (AliasLower);
if (DeleteAlias) {
Status = gRT->SetVariable (AliasLower, &gShellAliasGuid, 0, 0, NULL);
} else {
AliasLower = NULL;
Status = gRT->SetVariable (
AliasLower, &gShellAliasGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | (Volatile ? 0 : EFI_VARIABLE_NON_VOLATILE),
StrSize (Command), (VOID *) Command
);
}
//
// We must be trying to remove one if Alias is NULL
//
if (Alias == NULL) {
//
// remove an alias (but passed in COMMAND parameter)
//
Status = (gRT->SetVariable((CHAR16*)Command, &gShellAliasGuid, 0, 0, NULL));
} else {
//
// Add and replace are the same
//
// We dont check the error return on purpose since the variable may not exist.
gRT->SetVariable((CHAR16*)Command, &gShellAliasGuid, 0, 0, NULL);
Status = (gRT->SetVariable((CHAR16*)Alias, &gShellAliasGuid, EFI_VARIABLE_BOOTSERVICE_ACCESS|(Volatile?0:EFI_VARIABLE_NON_VOLATILE), StrSize(Command), (VOID*)Command));
}
if (Alias != NULL) {
FreePool (AliasLower);
}
return Status;
}