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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libc/] [libio_sockets.c] - Blame information for rev 173

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1 30 unneback
/*
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 *  This file contains the support infrastructure used to manage the
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 *  table of integer style file descriptors used by the socket calls.
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 *
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 *  COPYRIGHT (c) 1989-1999.
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 *  On-Line Applications Research Corporation (OAR).
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 *
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 *  The license and distribution terms for this file may be
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 *  found in the file LICENSE in this distribution or at
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 *  http://www.OARcorp.com/rtems/license.html.
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 *
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 *  $Id: libio_sockets.c,v 1.2 2001-09-27 12:01:15 chris Exp $
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 */
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#include "libio_.h"                   /* libio_.h pulls in rtems */
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#include <rtems.h>
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#include <errno.h>
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/*
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 * Convert an RTEMS file descriptor to a BSD socket pointer.
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 */
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struct socket *rtems_bsdnet_fdToSocket(
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  int fd
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)
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{
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  rtems_libio_t *iop;
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  if ((unsigned32)fd >= rtems_libio_number_iops) {
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    errno = EBADF;
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    return NULL;
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  }
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  iop = &rtems_libio_iops[fd];
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  if (iop->data1 == NULL)
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    errno = EBADF;
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  return iop->data1;
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}
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/*
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 * Create an RTEMS file descriptor for a socket
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 */
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int rtems_bsdnet_makeFdForSocket(
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  void *so,
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  const rtems_filesystem_file_handlers_r *h
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)
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{
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  rtems_libio_t *iop;
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  int fd;
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  iop = rtems_libio_allocate();
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  if (iop == 0) {
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      errno = ENFILE;
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      return -1;
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  }
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  fd = iop - rtems_libio_iops;
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  iop->flags |= LIBIO_FLAGS_WRITE | LIBIO_FLAGS_READ;
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  iop->data0 = fd;
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  iop->data1 = so;
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  iop->handlers = (rtems_filesystem_file_handlers_r *) h;
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  return fd;
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}

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