mirror of
https://gitlab.rtems.org/rtems/rtos/rtems.git
synced 2026-08-27 02:50:46 +08:00
Jennifer Averett
92119ed344
* libcsupport/src/chdir.c, libcsupport/src/chmod.c, libcsupport/src/chown.c, libcsupport/src/close.c, libcsupport/src/eval.c, libcsupport/src/fchdir.c, libcsupport/src/fchmod.c, libcsupport/src/fchown.c, libcsupport/src/fcntl.c, libcsupport/src/fdatasync.c, libcsupport/src/freenode.c, libcsupport/src/fstat.c, libcsupport/src/fsync.c, libcsupport/src/ftruncate.c, libcsupport/src/ioctl.c, libcsupport/src/link.c, libcsupport/src/lseek.c, libcsupport/src/mknod.c, libcsupport/src/mount.c, libcsupport/src/open.c, libcsupport/src/read.c, libcsupport/src/readlink.c, libcsupport/src/readv.c, libcsupport/src/rmdir.c, libcsupport/src/stat.c, libcsupport/src/statvfs.c, libcsupport/src/symlink.c, libcsupport/src/unlink.c, libcsupport/src/unmount.c, libcsupport/src/write.c: Removed filesystem checks for NULL methods checks from the main posix rountines. These are now required to have at a miminum default routines in the tables.
58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
/*
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* chdir() - POSIX 1003.1b - 5.2.1 - Change Current Working Directory
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*
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* COPYRIGHT (c) 1989-2010.
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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.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <rtems.h>
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#include <unistd.h>
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#include <errno.h>
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#include <rtems/libio_.h>
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#include <rtems/seterr.h>
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int chdir(
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const char *pathname
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)
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{
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rtems_filesystem_location_info_t loc;
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int result;
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if ( !pathname )
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rtems_set_errno_and_return_minus_one( EFAULT );
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/*
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* Get the node where we wish to go.
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*/
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result = rtems_filesystem_evaluate_path(
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pathname, strlen( pathname ), RTEMS_LIBIO_PERMS_SEARCH, &loc, true );
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if ( result != 0 )
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return -1;
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/*
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* Verify you can change directory into this node.
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*/
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if ( (*loc.ops->node_type_h)( &loc ) != RTEMS_FILESYSTEM_DIRECTORY ) {
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rtems_filesystem_freenode( &loc );
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rtems_set_errno_and_return_minus_one( ENOTDIR );
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}
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rtems_filesystem_freenode( &rtems_filesystem_current );
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rtems_filesystem_current = loc;
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return 0;
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}
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