* src/xfns.c (x_window): Use xstrdup (Bug#11375).

src/ChangeLog

@@ -2,6 +2,8 @@
 
 	* xterm.c (x_term_init): Use memcpy instead of strncpy (Bug#11373).
 
+	* xfns.c (x_window): Use xstrdup (Bug#11375).
+
 2012-05-02  Eli Zaretskii  <eliz@gnu.org>
 
 	* xdisp.c (pos_visible_p): If already at a newline from the

src/xfns.c

@@ -2439,7 +2439,6 @@ x_window (struct frame *f, long window_prompting, int minibuffer_only)
 
   /* Do some needed geometry management.  */
   {
-    ptrdiff_t len;
     char *tem, shell_position[sizeof "=x++" + 4 * INT_STRLEN_BOUND (int)];
     Arg gal[10];
     int gac = 0;
@@ -2508,13 +2507,11 @@ x_window (struct frame *f, long window_prompting, int minibuffer_only)
         }
     }
 
-    len = strlen (shell_position) + 1;
     /* We don't free this because we don't know whether
        it is safe to free it while the frame exists.
        It isn't worth the trouble of arranging to free it
        when the frame is deleted.  */
-    tem = (char *) xmalloc (len);
-    strncpy (tem, shell_position, len);
+    tem = (char *) xstrdup (shell_position);
     XtSetArg (gal[gac], XtNgeometry, tem); gac++;
     XtSetValues (shell_widget, gal, gac);
   }