ShellPkg: Fix a bug ">>v" cannot append data to environment variable

When ">v" is used to redirect the command output to environment
variable, the ending "\r\n\0" is removed before setting to environment
variable but the length is not updated.
It causes ">>v" fails to append data to the environment variable
created by ">v".
The patch fixes the above bug.

Signed-off-by: Chen A Chen <chen.a.chen@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
This commit is contained in:
Chen A Chen 2017-01-04 11:28:03 +08:00 committed by Ruiyu Ni
parent dd6d0a520e
commit 5016d46603
1 changed files with 5 additions and 1 deletions

View File

@ -3,7 +3,7 @@
StdIn, StdOut, StdErr, etc...).
Copyright 2016 Dell Inc.
Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2013 Hewlett-Packard Development Company, L.P.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@ -1074,6 +1074,10 @@ FileInterfaceEnvClose(
(((CHAR16*)NewBuffer)[TotalSize / sizeof (CHAR16) - 3] == CHAR_CARRIAGE_RETURN)
) {
((CHAR16*)NewBuffer)[TotalSize / sizeof (CHAR16) - 3] = CHAR_NULL;
//
// If the NewBuffer end with \r\n\0, We will repace '\r' by '\0' and then update TotalSize.
//
TotalSize -= sizeof(CHAR16) * 2;
}
if (Volatile) {