source: rtems/c/src/lib/libc/libio_sockets.c @ 17177e2c

4.104.114.84.95
Last change on this file since 17177e2c was 08311cc3, checked in by Joel Sherrill <joel.sherrill@…>, on 11/17/99 at 17:51:34

Updated copyright notice.

  • Property mode set to 100644
File size: 1.3 KB
Line 
1/*
2 *  This file contains the support infrastructure used to manage the
3 *  table of integer style file descriptors used by the socket calls.
4 *
5 *  COPYRIGHT (c) 1989-1999.
6 *  On-Line Applications Research Corporation (OAR).
7 *
8 *  The license and distribution terms for this file may be
9 *  found in the file LICENSE in this distribution or at
10 *  http://www.OARcorp.com/rtems/license.html.
11 *
12 *  $Id$
13 */
14
15#include "libio_.h"                   /* libio_.h pulls in rtems */
16#include <rtems.h>
17
18#include <errno.h>
19
20/*
21 * Convert an RTEMS file descriptor to a BSD socket pointer.
22 */
23
24struct socket *rtems_bsdnet_fdToSocket(
25  int fd
26)
27{
28  rtems_libio_t *iop;
29
30  if ((unsigned32)fd >= rtems_libio_number_iops) {
31    errno = EBADF;
32    return NULL;
33  }
34  iop = &rtems_libio_iops[fd];
35  if (iop->data1 == NULL)
36    errno = EBADF;
37  return iop->data1;
38}
39
40/*
41 * Create an RTEMS file descriptor for a socket
42 */
43
44int rtems_bsdnet_makeFdForSocket(
45  void *so,
46  const rtems_filesystem_file_handlers_r *h
47)
48{
49  rtems_libio_t *iop;
50  int fd;
51
52  iop = rtems_libio_allocate();
53  if (iop == 0) {
54      errno = ENFILE;
55      return -1;
56  }
57  fd = iop - rtems_libio_iops;
58  iop->flags |= LIBIO_FLAGS_WRITE | LIBIO_FLAGS_READ;
59  iop->data0 = fd;
60  iop->data1 = so;
61  iop->handlers = (rtems_filesystem_file_handlers_r *) h;
62  return fd;
63}
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