4.104.114.84.95
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1 | /* |
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2 | * This file contains the support infrastructure used to manage the |
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3 | * table of integer style file descriptors used by the socket calls. |
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4 | * |
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5 | * COPYRIGHT (c) 1989-1998. |
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6 | * On-Line Applications Research Corporation (OAR). |
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7 | * Copyright assigned to U.S. Government, 1994. |
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8 | * |
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9 | * The license and distribution terms for this file may be |
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10 | * found in the file LICENSE in this distribution or at |
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11 | * http://www.OARcorp.com/rtems/license.html. |
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12 | * |
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13 | * $Id$ |
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14 | */ |
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15 | |
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16 | #include "libio_.h" /* libio_.h pulls in rtems */ |
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17 | #include <rtems.h> |
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18 | |
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19 | #include <errno.h> |
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20 | |
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21 | /* |
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22 | * Convert an RTEMS file descriptor to a BSD socket pointer. |
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23 | */ |
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24 | |
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25 | struct socket *rtems_bsdnet_fdToSocket( |
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26 | int fd |
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27 | ) |
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28 | { |
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29 | rtems_libio_t *iop; |
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30 | |
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31 | if ((unsigned32)fd >= rtems_libio_number_iops) { |
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32 | errno = EBADF; |
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33 | return NULL; |
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34 | } |
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35 | iop = &rtems_libio_iops[fd]; |
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36 | if (iop->data1 == NULL) |
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37 | errno = EBADF; |
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38 | return iop->data1; |
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39 | } |
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40 | |
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41 | /* |
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42 | * Create an RTEMS file descriptor for a socket |
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43 | */ |
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44 | |
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45 | int rtems_bsdnet_makeFdForSocket( |
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46 | void *so, |
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47 | const rtems_filesystem_file_handlers_r *h |
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48 | ) |
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49 | { |
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50 | rtems_libio_t *iop; |
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51 | int fd; |
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52 | |
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53 | iop = rtems_libio_allocate(); |
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54 | if (iop == 0) { |
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55 | errno = ENFILE; |
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56 | return -1; |
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57 | } |
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58 | fd = iop - rtems_libio_iops; |
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59 | iop->flags |= LIBIO_FLAGS_WRITE | LIBIO_FLAGS_READ; |
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60 | iop->data0 = fd; |
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61 | iop->data1 = so; |
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62 | iop->handlers = (rtems_filesystem_file_handlers_r *) h; |
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63 | return fd; |
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64 | } |
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