fixed growing the buffer

Modified: trunk/reactos/lib/userenv/misc.c

--- trunk/reactos/lib/userenv/misc.c	2006-01-09 09:42:25 UTC (rev 20748)
+++ trunk/reactos/lib/userenv/misc.c	2006-01-09 11:14:26 UTC (rev 20749)
@@ -51,12 +51,12 @@

 GetUserSidFromToken (HANDLE hToken,
 		     PUNICODE_STRING SidString)
 {

-  PSID_AND_ATTRIBUTES SidBuffer;

+  PSID_AND_ATTRIBUTES SidBuffer, nsb;

   ULONG Length;
   NTSTATUS Status;
 
   Length = 256;

-  SidBuffer = LocalAlloc (0,

+  SidBuffer = LocalAlloc (LMEM_FIXED,

 			  Length);
   if (SidBuffer == NULL)
     return FALSE;
@@ -68,12 +68,16 @@

 				    &Length);
   if (Status == STATUS_BUFFER_TOO_SMALL)
     {

-      SidBuffer = LocalReAlloc (SidBuffer,
-				Length,
-				0);
-      if (SidBuffer == NULL)
-	return FALSE;

+      nsb = LocalReAlloc (SidBuffer,
+                          Length,
+                          LMEM_MOVEABLE);
+      if (nsb == NULL)
+        {
+          LocalFree((HLOCAL)SidBuffer);
+          return FALSE;
+        }

+      SidBuffer = nsb;

       Status = NtQueryInformationToken (hToken,
 					TokenUser,
 					(PVOID)SidBuffer,
@@ -83,7 +87,7 @@

 
   if (!NT_SUCCESS (Status))
     {

-      LocalFree (SidBuffer);

+      LocalFree ((HLOCAL)SidBuffer);

       return FALSE;
     }
 
@@ -93,7 +97,7 @@

 					 SidBuffer[0].Sid,
 					 TRUE);
 

-  LocalFree (SidBuffer);

+  LocalFree ((HLOCAL)SidBuffer);

 
   if (!NT_SUCCESS (Status))
     return FALSE;