initial import

1 files changed, 49 insertions, 0 deletions

diff --git a/hurd/fd-read.c b/hurd/fd-read.c
new file mode 100644
index 0000000000..842066c150
--- /dev/null
+++ b/hurd/fd-read.c
@@ -0,0 +1,49 @@
+/* Copyright (C) 1993, 1994, 1995 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 <unistd.h>
+#include <hurd.h>
+#include <hurd/fd.h>
+#include <string.h>
+
+error_t
+_hurd_fd_read (struct hurd_fd *fd, void *buf, size_t *nbytes)
+{
+  error_t err;
+  char *data;
+  mach_msg_type_number_t nread;
+
+  error_t readfd (io_t port)
+    {
+      return __io_read (port, &data, &nread, -1, *nbytes);
+    }
+
+  data = buf;
+  if (err = HURD_FD_PORT_USE (fd, _hurd_ctty_input (port, ctty, readfd)))
+    return err;
+
+  if (data != buf)
+    {
+      memcpy (buf, data, nread);
+      __vm_deallocate (__mach_task_self (), (vm_address_t) data, nread);
+    }
+
+  *nbytes = nread;
+  return 0;
+}