4.104.114.84.95
Last change
on this file since 2782e69 was
dd0f326,
checked in by Joel Sherrill <joel.sherrill@…>, on 10/12/99 at 19:10:46
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Added rtems_filesystem_freenode() macro and added calls at appropriate
places to make sure memory allocated for filesystem specifif nodes
gets freed.
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-
Property mode set to
100644
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File size:
1.2 KB
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1 | /* |
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2 | * chdir() - POSIX 1003.1b - 5.2.1 - Change Current Working Directory |
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3 | * |
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4 | * COPYRIGHT (c) 1989-1998. |
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5 | * On-Line Applications Research Corporation (OAR). |
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6 | * Copyright assigned to U.S. Government, 1994. |
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7 | * |
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8 | * The license and distribution terms for this file may be |
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9 | * found in the file LICENSE in this distribution or at |
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10 | * http://www.OARcorp.com/rtems/license.html. |
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11 | * |
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12 | * $Id$ |
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13 | */ |
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14 | |
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15 | #include <rtems.h> |
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16 | |
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17 | #include <unistd.h> |
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18 | #include <errno.h> |
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19 | |
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20 | #include "libio_.h" |
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21 | |
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22 | int chdir( |
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23 | const char *pathname |
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24 | ) |
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25 | { |
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26 | rtems_filesystem_location_info_t loc; |
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27 | int result; |
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28 | |
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29 | /* |
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30 | * Get the node where we wish to go. |
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31 | */ |
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32 | |
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33 | result = rtems_filesystem_evaluate_path( pathname, 0, &loc, TRUE ); |
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34 | if ( result != 0 ) |
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35 | return -1; |
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36 | |
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37 | /* |
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38 | * Verify you can change directory into this node. |
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39 | */ |
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40 | |
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41 | if ( !loc.ops->node_type ) { |
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42 | rtems_filesystem_freenode( &loc ); |
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43 | set_errno_and_return_minus_one( ENOTSUP ); |
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44 | } |
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45 | |
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46 | if ( (*loc.ops->node_type)( &loc ) != RTEMS_FILESYSTEM_DIRECTORY ) { |
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47 | rtems_filesystem_freenode( &loc ); |
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48 | set_errno_and_return_minus_one( ENOTDIR ); |
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49 | } |
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50 | |
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51 | rtems_filesystem_freenode( &rtems_filesystem_current ); |
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52 | |
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53 | rtems_filesystem_current = loc; |
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54 | |
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55 | return 0; |
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56 | } |
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