* dcrt0.cc (dll_crt0_1): Don't call set_cygwin_privileges on 9x.

* fhandler.h (enum change_state): Add.
	(fhandler_base::status): Add a bit to has_changed flag.
	(fhandler_base::has_changed): Implement with type change_state.
	* fhandler.cc (fhandler_base::raw_write): Accomodate type change
	of has_changed.
	* fhandler_disk_file.cc )fhandler_disk_file::touch_ctime): Also
	touch modification time if has_changed == data_changed.
	(fhandler_disk_file::fchmod): Also open on 9x, otherwise we can't
	touch ctime.  Accomodate type change of has_changed.
	(fhandler_disk_file::fchown): Accomodate type change of has_changed.
	(fhandler_disk_file::facl): Ditto.
	(fhandler_disk_file::ftruncate): Ditto.
	(fhandler_disk_file::link): Ditto.
	(fhandler_base::open_fs): Ditto.

winsup/cygwin/ChangeLog

@@ -1,3 +1,22 @@
+2005-04-04  Corinna Vinschen  <corinna@vinschen.de>
+
+	* dcrt0.cc (dll_crt0_1): Don't call set_cygwin_privileges on 9x.
+
+	* fhandler.h (enum change_state): Add.
+	(fhandler_base::status): Add a bit to has_changed flag.
+	(fhandler_base::has_changed): Implement with type change_state.
+	* fhandler.cc (fhandler_base::raw_write): Accomodate type change
+	of has_changed.
+	* fhandler_disk_file.cc )fhandler_disk_file::touch_ctime): Also
+	touch modification time if has_changed == data_changed.
+	(fhandler_disk_file::fchmod): Also open on 9x, otherwise we can't
+	touch ctime.  Accomodate type change of has_changed.
+	(fhandler_disk_file::fchown): Accomodate type change of has_changed.
+	(fhandler_disk_file::facl): Ditto.
+	(fhandler_disk_file::ftruncate): Ditto.
+	(fhandler_disk_file::link): Ditto.
+	(fhandler_base::open_fs): Ditto.
+
 2005-04-03  Corinna Vinschen  <corinna@vinschen.de>
 
 	* cygheap.cc (cygheap_init): Accomodate set_process_privilege change.

winsup/cygwin/dcrt0.cc

@@ -770,7 +770,8 @@ dll_crt0_1 (char *)
   pinfo_init (envp, envc);
 
   /* Can be set only after environment has been initialized. */
-  set_cygwin_privileges (hProcImpToken);
+  if (wincap.has_security ())
+    set_cygwin_privileges (hProcImpToken);
 
   if (!old_title && GetConsoleTitle (title_buf, TITLESIZE))
       old_title = title_buf;

winsup/cygwin/fhandler.cc

@@ -295,7 +295,7 @@ fhandler_base::raw_write (const void *ptr, size_t len)
       return -1;
     }
 written:
-  has_changed (true);
+  has_changed (data_changed);
   return bytes_written;
 }
 

winsup/cygwin/fhandler.h

@@ -78,6 +78,12 @@ enum query_state {
   query_write_attributes = 4
 };
 
+enum change_state {
+  no_change = 0,
+  inode_changed = 1,
+  data_changed = 2
+};
+
 class fhandler_base
 {
   friend class dtable;
@@ -100,14 +106,14 @@ class fhandler_base
 					read or write access */
     unsigned close_on_exec      : 1; /* close-on-exec */
     unsigned need_fork_fixup    : 1; /* Set if need to fixup after fork. */
-    unsigned has_changed	: 1; /* Flag used to set ctime on close. */
+    unsigned has_changed	: 2; /* Flag used to set ctime on close. */
 
    public:
     status_flags () :
       rbinary (0), rbinset (0), wbinary (0), wbinset (0), nohandle (0),
       uninterruptible_io (0), append_mode (0), did_lseek (0),
       query_open (no_query), close_on_exec (0), need_fork_fixup (0),
-      has_changed (0)
+      has_changed (no_change)
       {}
   } status, open_status;
 
@@ -188,7 +194,7 @@ class fhandler_base
   IMPLEMENT_STATUS_FLAG (query_state, query_open)
   IMPLEMENT_STATUS_FLAG (bool, close_on_exec)
   IMPLEMENT_STATUS_FLAG (bool, need_fork_fixup)
-  IMPLEMENT_STATUS_FLAG (bool, has_changed)
+  IMPLEMENT_STATUS_FLAG (change_state, has_changed)
 
   int get_default_fmode (int flags);
 

winsup/cygwin/fhandler_disk_file.cc

@@ -391,10 +391,13 @@ fhandler_disk_file::touch_ctime (void)
   FILETIME ft;
 
   GetSystemTimeAsFileTime (&ft);
-  if (!SetFileTime (get_io_handle (), &ft, NULL, NULL))
+  /* Modification time is touched if the file data has changed as well.
+     This happens for instance on write() or ftruncate(). */
+  if (!SetFileTime (get_io_handle (), &ft, NULL,
+		    has_changed () == data_changed ? &ft : NULL))
     debug_printf ("SetFileTime (%s) failed, %E", get_win32_name ());
   else
-    has_changed (false);
+    has_changed (no_change);
 }
 
 int __stdcall
@@ -407,15 +410,16 @@ fhandler_disk_file::fchmod (mode_t mode)
   if (pc.is_fs_special ())
     return chmod_device (pc, mode);
 
+  /* Also open on 9x, otherwise we can't touch ctime. */
+  if (!get_io_handle ())
+    {
+      query_open (query_write_control);
+      if (!(oret = open (O_BINARY, 0)))
+	return -1;
+    }
+
   if (wincap.has_security ())
     {
-      if (!get_io_handle () && pc.has_acls ())
-	{
-	  query_open (query_write_control);
-	  if (!(oret = open (O_BINARY, 0)))
-	    return -1;
-	}
-
       if (!allow_ntsec && allow_ntea) /* Not necessary when manipulating SD. */
 	SetFileAttributes (pc, (DWORD) pc & ~FILE_ATTRIBUTE_READONLY);
       if (pc.isdir ())
@@ -440,7 +444,7 @@ fhandler_disk_file::fchmod (mode_t mode)
 
   /* Set ctime on success. */
   if (!res)
-    has_changed (true);
+    has_changed (inode_changed);
 
   if (oret)
     close ();
@@ -477,7 +481,7 @@ fhandler_disk_file::fchown (__uid32_t uid, __gid32_t gid)
 				uid, gid, attrib);
       /* Set ctime on success. */
       if (!res)
-	has_changed (true);
+	has_changed (inode_changed);
     }
 
   if (oret)
@@ -574,7 +578,7 @@ fhandler_disk_file::facl (int cmd, int nentries, __aclent32_t *aclbufp)
 
   /* Set ctime on success. */
   if (!res && cmd == SETACL)
-    has_changed (true);
+    has_changed (inode_changed);
 
   if (oret)
     close ();
@@ -624,7 +628,7 @@ fhandler_disk_file::ftruncate (_off64_t length)
 	  lseek (prev_loc, SEEK_SET);
 	  /* Set ctime on success. */
 	  if (!res)
-	    has_changed (true);
+	    has_changed (data_changed);
 	}
     }
   return res;
@@ -757,7 +761,7 @@ fhandler_disk_file::link (const char *newpath)
 
     success:
       /* Set ctime on success. */
-      has_changed (true);
+      has_changed (inode_changed);
       close ();
       if (!allow_winsymlinks && pc.is_lnk_symlink ())
 	SetFileAttributes (newpc, (DWORD) pc
@@ -773,13 +777,13 @@ docopy:
       return -1;
     }
   /* Set ctime on success, also on the copy. */
-  has_changed (true);
+  has_changed (inode_changed);
   close ();
   fhandler_disk_file fh (newpc);
   fh.query_open (query_write_attributes);
   if (fh.open (O_BINARY, 0))
     {
-      fh.has_changed (true);
+      fh.has_changed (inode_changed);
       fh.close ();
     }
   return 0;
@@ -895,7 +899,7 @@ fhandler_base::open_fs (int flags, mode_t mode)
 
   /* O_TRUNC on existing file requires setting ctime. */
   if ((flags & (O_CREAT | O_TRUNC)) == O_TRUNC)
-    has_changed (true);
+    has_changed (data_changed);
 
   set_fs_flags (pc.fs_flags ());