* fhandler.h (fhandler_base::ftruncate): Define new virtual method.

	(fhandler_disk_file::ftruncate): Ditto.
	* fhandler.cc (fhandler_base::ftruncate): New method.
	* fhandler_disk_file.cc (fhandler_disk_file::ftruncate): Ditto.
	* syscalls.cc (ftruncate64): Move functionality into fhandlers.
	Call fhandler method from here.

1 files changed, 5 insertions, 30 deletions

diff --git a/winsup/cygwin/syscalls.cc b/winsup/cygwin/syscalls.cc
index 8548f5e4a..d4f497246 100644
--- a/winsup/cygwin/syscalls.cc
+++ b/winsup/cygwin/syscalls.cc
@@ -1737,37 +1737,12 @@ setmode (int fd, int mode)
 extern "C" int
 ftruncate64 (int fd, _off64_t length)
 {
-  int res = -1, res_bug = 0;
-
-  if (length < 0)
-    set_errno (EINVAL);
+  int res = -1;
+  cygheap_fdget cfd (fd);
+  if (cfd >= 0)
+    res = cfd->ftruncate (length);
   else
-    {
-      cygheap_fdget cfd (fd);
-      if (cfd >= 0)
-	{
-	  HANDLE h = cygheap->fdtab[fd]->get_handle ();
-
-	  if (cfd->get_handle ())
-	    {
-	      /* remember curr file pointer location */
-	      _off64_t prev_loc = cfd->lseek (0, SEEK_CUR);
-
-	      cfd->lseek (length, SEEK_SET);
-	      /* Fill the space with 0, if needed */
-	      if (wincap.has_lseek_bug ())
-		res_bug = cfd->write (&res, 0);
-	      if (!SetEndOfFile (h))
-		__seterrno ();
-	      else
-		res = res_bug;
-
-	      /* restore original file pointer location */
-	      cfd->lseek (prev_loc, SEEK_SET);
-	    }
-	}
-    }
-
+    set_errno (EBADF);
   syscall_printf ("%d = ftruncate (%d, %D)", res, fd, length);
   return res;
 }