1 files changed, 73 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/libio_sockets.c b/cpukit/libcsupport/src/libio_sockets.c
new file mode 100644
index 0000000000..c67e19d78c
--- /dev/null
+++ b/cpukit/libcsupport/src/libio_sockets.c
@@ -0,0 +1,73 @@
+/*
+ *  This file contains the support infrastructure used to manage the
+ *  table of integer style file descriptors used by the socket calls.
+ *
+ *  COPYRIGHT (c) 1989-1999.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/libio_.h>
+#include <rtems/seterr.h>
+
+/*
+ * Convert an RTEMS file descriptor to a BSD socket pointer.
+ */
+
+struct socket *rtems_bsdnet_fdToSocket(
+  int fd
+)
+{
+  rtems_libio_t *iop;
+
+  /* same as rtems_libio_check_fd(_fd) but different return */
+  if ((uint32_t)fd >= rtems_libio_number_iops) {
+    errno = EBADF;
+    return NULL;
+  }
+  iop = &rtems_libio_iops[fd];
+
+  /* same as rtems_libio_check_is_open(iop) but different return */
+  if ((iop->flags & LIBIO_FLAGS_OPEN) == 0) {
+    errno = EBADF;
+    return NULL;
+  }
+
+  if (iop->data1 == NULL)
+    errno = EBADF;
+  return iop->data1;
+}
+
+/*
+ * Create an RTEMS file descriptor for a socket
+ */
+
+int rtems_bsdnet_makeFdForSocket(
+  void *so,
+  const rtems_filesystem_file_handlers_r *h
+)
+{
+  rtems_libio_t *iop;
+  int fd;
+
+  iop = rtems_libio_allocate();
+  if (iop == 0)
+      rtems_set_errno_and_return_minus_one( ENFILE );
+
+  fd = iop - rtems_libio_iops;
+  iop->flags |= LIBIO_FLAGS_WRITE | LIBIO_FLAGS_READ;
+  iop->data0 = fd;
+  iop->data1 = so;
+  iop->pathinfo.handlers = h;
+  iop->pathinfo.ops = &rtems_filesystem_operations_default;
+  return fd;
+}