[weiden] 24472: Some portability fixes that address possible alignment issues. Read R. Chen's blog 10/06/06 for more information.

Author: weiden
Date: Mon Oct  9 19:09:50 2006
New Revision: 24472

URL: http://svn.reactos.org/svn/reactos?rev=24472&view=rev
Log:
Some portability fixes that address possible alignment issues. Read R. Chen's blog 10/06/06 for more information.

Modified:
    trunk/reactos/dll/win32/aclui/aclui.c
    trunk/reactos/dll/win32/advapi32/sec/sid.c
    trunk/reactos/lib/rtl/sd.c
    trunk/reactos/lib/rtl/sid.c
    trunk/reactos/ntoskrnl/se/sid.c

Modified: trunk/reactos/dll/win32/aclui/aclui.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/aclui/aclui.c?rev...
==============================================================================
--- trunk/reactos/dll/win32/aclui/aclui.c (original)
+++ trunk/reactos/dll/win32/aclui/aclui.c Mon Oct  9 19:09:50 2006
@@ -1047,7 +1047,8 @@
     WORD AceSize;

SidLen = GetLengthSid(pSid);
-    AceSize = sizeof(ACCESS_ALLOWED_ACE) + (WORD)SidLen - sizeof(DWORD);
+    AceSize = FIELD_OFFSET(ACCESS_ALLOWED_ACE,
+                           SidStart) + (WORD)SidLen;
     Ace = HeapAlloc(GetProcessHeap(),
                     0,
                     AceSize);

Modified: trunk/reactos/dll/win32/advapi32/sec/sid.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/advapi32/sec/sid....
==============================================================================
--- trunk/reactos/dll/win32/advapi32/sec/sid.c (original)
+++ trunk/reactos/dll/win32/advapi32/sec/sid.c Mon Oct  9 19:09:50 2006
@@ -184,7 +184,7 @@
     return !status;
 }

-#define	WINE_SIZE_OF_WORLD_ACCESS_ACL	(sizeof(ACL) + sizeof(ACCESS_ALLOWED_ACE) + sizeof(sidWorld) - sizeof(DWORD))
+#define	WINE_SIZE_OF_WORLD_ACCESS_ACL	(sizeof(ACL) + FIELD_OFFSET(ACCESS_ALLOWED_ACE, SidStart) + sizeof(sidWorld))

/* some helper functions - taken from winehq cvs 20050916 */
@@ -428,7 +428,7 @@
             goto lerr;
         StringAcl++;

-	length += sizeof(ACCESS_ALLOWED_ACE) - sizeof(DWORD) + sidlen;
+	length += FIELD_OFFSET(ACCESS_ALLOWED_ACE, SidStart) + sidlen;
     }

*cBytes = length;

Modified: trunk/reactos/lib/rtl/sd.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/lib/rtl/sd.c?rev=24472&...
==============================================================================
--- trunk/reactos/lib/rtl/sd.c (original)
+++ trunk/reactos/lib/rtl/sd.c Mon Oct  9 19:09:50 2006
@@ -812,8 +812,6 @@
                                 &pSacl,
                                 &SaclLength);

-    ASSERT(sizeof(SECURITY_DESCRIPTOR) > sizeof(SECURITY_DESCRIPTOR_RELATIVE));
-
     /* calculate the start and end of the data area, we simply just move the
        data by the difference between the size of the relative and absolute
        security descriptor structure */

Modified: trunk/reactos/lib/rtl/sid.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/lib/rtl/sid.c?rev=24472&...
==============================================================================
--- trunk/reactos/lib/rtl/sid.c (original)
+++ trunk/reactos/lib/rtl/sid.c Mon Oct  9 19:09:50 2006
@@ -42,8 +42,8 @@
 {
   PAGED_CODE_RTL();

-  return (sizeof(SID) - (ANYSIZE_ARRAY * sizeof(ULONG)) +
-          (SubAuthorityCount * sizeof(ULONG)));
+  return (ULONG)FIELD_OFFSET(SID,
+                             SubAuthority[SubAuthorityCount]);
 }

@@ -132,8 +132,8 @@

PAGED_CODE_RTL();

-  return (sizeof(SID) - sizeof(Sid->SubAuthority) +
-          (Sid->SubAuthorityCount * sizeof(ULONG)));
+  return (ULONG)FIELD_OFFSET(SID,
+                             SubAuthority[Sid->SubAuthorityCount]);
 }

Modified: trunk/reactos/ntoskrnl/se/sid.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/se/sid.c?rev=24472...
==============================================================================
--- trunk/reactos/ntoskrnl/se/sid.c (original)
+++ trunk/reactos/ntoskrnl/se/sid.c Mon Oct  9 19:09:50 2006
@@ -246,7 +246,8 @@
     _SEH_TRY
     {
       ProbeForRead(Sid,
-                   sizeof(*Sid) - sizeof(Sid->SubAuthority),
+                   FIELD_OFFSET(SID,
+                                SubAuthority),
                    sizeof(UCHAR));
       SidSize = RtlLengthRequiredSid(Sid->SubAuthorityCount);
       ProbeForRead(Sid,