[tfaber] 66463: [NTOS:CM] - Addendum to r66462: don't forget to check buffer length CORE-9267

Author: tfaber
Date: Thu Feb 26 08:04:03 2015
New Revision: 66463

URL: http://svn.reactos.org/svn/reactos?rev=66463&view=rev
Log:
[NTOS:CM]
- Addendum to r66462: don't forget to check buffer length
CORE-9267

Modified:
    trunk/reactos/ntoskrnl/config/cmparse.c

Modified: trunk/reactos/ntoskrnl/config/cmparse.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/config/cmparse.c?r...
==============================================================================
--- trunk/reactos/ntoskrnl/config/cmparse.c	[iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/config/cmparse.c	[iso-8859-1] Thu Feb 26 08:04:03 2015
@@ -24,6 +24,8 @@
 {
     BOOLEAN NameValid = TRUE;

+    NT_ASSERT(RemainingName->Length % sizeof(WCHAR) == 0);
+
     /* Check if there's nothing left in the name */
     if (!(RemainingName->Buffer) ||
         (!RemainingName->Length) ||
@@ -37,7 +39,8 @@
     }

/* Check if we have a path separator */
-    while (*RemainingName->Buffer == OBJ_NAME_PATH_SEPARATOR)
+    while ((RemainingName->Length) &&
+           (*RemainingName->Buffer == OBJ_NAME_PATH_SEPARATOR))
     {
         /* Skip it */
         RemainingName->Buffer++;
@@ -47,15 +50,9 @@

/* Start loop at where the current buffer is */
     NextName->Buffer = RemainingName->Buffer;
-    while (TRUE)
-    {
-        /* Break out if we ran out or hit a path separator */
-        if (!(RemainingName->Length) ||
-            (*RemainingName->Buffer == OBJ_NAME_PATH_SEPARATOR))
-        {
-            break;
-        }
-
+    while ((RemainingName->Length) &&
+           (*RemainingName->Buffer != OBJ_NAME_PATH_SEPARATOR))
+    {
         /* Move to the next character */
         RemainingName->Buffer++;
         RemainingName->Length -= sizeof(WCHAR);