5
Last change
on this file since baef823c was
baef823c,
checked in by Sebastian Huber <sebastian.huber@…>, on 09/13/17 at 07:22:19
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libio: Add hold/drop iop reference
Check iop reference count in close() and return -1 with errno set to
EBUSY in case the file descriptor is still in use.
Update #3132.
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-
Property mode set to
100644
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File size:
1.3 KB
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1 | /* |
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2 | * fstat() - POSIX 1003.1b 5.6.2 - Get File Status |
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3 | * |
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4 | * COPYRIGHT (c) 1989-1999. |
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5 | * On-Line Applications Research Corporation (OAR). |
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6 | * |
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7 | * The license and distribution terms for this file may be |
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8 | * found in the file LICENSE in this distribution or at |
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9 | * http://www.rtems.org/license/LICENSE. |
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10 | */ |
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11 | |
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12 | #if HAVE_CONFIG_H |
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13 | #include "config.h" |
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14 | #endif |
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15 | |
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16 | #include <sys/stat.h> |
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17 | #include <unistd.h> |
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18 | #include <string.h> |
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19 | |
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20 | #include <rtems/libio_.h> |
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21 | #include <rtems/seterr.h> |
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22 | |
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23 | int fstat( |
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24 | int fd, |
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25 | struct stat *sbuf |
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26 | ) |
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27 | { |
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28 | rtems_libio_t *iop; |
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29 | int rv; |
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30 | |
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31 | /* |
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32 | * Check to see if we were passed a valid pointer. |
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33 | */ |
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34 | if ( !sbuf ) |
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35 | rtems_set_errno_and_return_minus_one( EFAULT ); |
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36 | |
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37 | /* |
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38 | * Now process the stat() request. |
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39 | */ |
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40 | LIBIO_GET_IOP( fd, iop ); |
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41 | |
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42 | /* |
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43 | * Zero out the stat structure so the various support |
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44 | * versions of stat don't have to. |
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45 | */ |
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46 | memset( sbuf, 0, sizeof(struct stat) ); |
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47 | |
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48 | rv = (*iop->pathinfo.handlers->fstat_h)( &iop->pathinfo, sbuf ); |
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49 | rtems_libio_iop_drop( iop ); |
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50 | return rv; |
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51 | } |
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52 | |
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53 | /* |
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54 | * _fstat_r |
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55 | * |
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56 | * This is the Newlib dependent reentrant version of fstat(). |
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57 | */ |
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58 | |
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59 | #if defined(RTEMS_NEWLIB) && !defined(HAVE_FSTAT_R) |
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60 | |
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61 | #include <reent.h> |
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62 | |
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63 | int _fstat_r( |
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64 | struct _reent *ptr RTEMS_UNUSED, |
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65 | int fd, |
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66 | struct stat *buf |
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67 | ) |
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68 | { |
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69 | return fstat( fd, buf ); |
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70 | } |
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71 | #endif |
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