1 files changed, 57 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/vdprintf.c b/sysdeps/mach/hurd/vdprintf.c
new file mode 100644
index 0000000000..002f8c630a
--- /dev/null
+++ b/sysdeps/mach/hurd/vdprintf.c
@@ -0,0 +1,57 @@
+/* Copyright (C) 1991, 1992, 1993, 1997 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <errno.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+#include <hurd/fd.h>
+
+/* Write formatted output to file descriptor D according to the format string
+   FORMAT, using the argument list in ARG.  */
+int
+vdprintf (int d, const char *format, va_list arg)
+{
+  int done;
+  FILE f;
+  struct hurd_fd *fd;
+
+  HURD_CRITICAL_BEGIN;
+  fd = _hurd_fd_get (fd);
+  HURD_CRITICAL_END;
+
+  if (!fd)
+    return 0;
+
+  /* Create an unbuffered stream talking to D on the stack.  */
+  memset ((PTR) &f, 0, sizeof(f));
+  f.__magic = _IOMAGIC;
+  f.__mode.__write = 1;
+  f.__cookie = fd;
+  f.__room_funcs = __default_room_functions;
+  f.__io_funcs = __default_io_functions;
+  f.__seen = 1;
+  f.__userbuf = 1;
+
+  /* vfprintf will use a buffer on the stack for the life of the call,
+     and flush it when finished.  */
+  done = vfprintf (&f, format, arg);
+
+  return done;
+}