/*
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/*
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* unlink() - POSIX 1003.1b - 5.5.1 - Remove an existing link
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* unlink() - POSIX 1003.1b - 5.5.1 - Remove an existing link
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*
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*
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* COPYRIGHT (c) 1989-1999.
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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* On-Line Applications Research Corporation (OAR).
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*
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*
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* The license and distribution terms for this file may be
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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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* 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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* http://www.OARcorp.com/rtems/license.html.
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*
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*
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* unlink.c,v 1.9 2002/01/04 18:29:37 joel Exp
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* unlink.c,v 1.9 2002/01/04 18:29:37 joel Exp
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*/
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*/
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#if HAVE_CONFIG_H
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#if HAVE_CONFIG_H
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#include "config.h"
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#include "config.h"
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#endif
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#endif
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#include <errno.h>
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#include <errno.h>
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#include <rtems/libio_.h>
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#include <rtems/libio_.h>
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#include <rtems/seterr.h>
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#include <rtems/seterr.h>
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int unlink(
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int unlink(
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const char *path
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const char *path
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)
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)
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{
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{
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rtems_filesystem_location_info_t loc;
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rtems_filesystem_location_info_t loc;
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int result;
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int result;
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/*
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/*
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* Get the node to be unlinked.
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* Get the node to be unlinked.
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*/
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*/
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result = rtems_filesystem_evaluate_path( path, 0, &loc, FALSE );
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result = rtems_filesystem_evaluate_path( path, 0, &loc, FALSE );
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if ( result != 0 )
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if ( result != 0 )
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return -1;
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return -1;
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if ( !loc.ops->node_type_h ) {
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if ( !loc.ops->node_type_h ) {
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rtems_filesystem_freenode( &loc );
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rtems_filesystem_freenode( &loc );
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rtems_set_errno_and_return_minus_one( ENOTSUP );
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rtems_set_errno_and_return_minus_one( ENOTSUP );
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}
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}
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if ( (*loc.ops->node_type_h)( &loc ) == RTEMS_FILESYSTEM_DIRECTORY ) {
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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_filesystem_freenode( &loc );
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rtems_set_errno_and_return_minus_one( EISDIR );
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rtems_set_errno_and_return_minus_one( EISDIR );
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}
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}
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if ( !loc.ops->unlink_h ) {
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if ( !loc.ops->unlink_h ) {
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rtems_filesystem_freenode( &loc );
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rtems_filesystem_freenode( &loc );
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rtems_set_errno_and_return_minus_one( ENOTSUP );
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rtems_set_errno_and_return_minus_one( ENOTSUP );
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}
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}
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result = (*loc.ops->unlink_h)( &loc );
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result = (*loc.ops->unlink_h)( &loc );
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rtems_filesystem_freenode( &loc );
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rtems_filesystem_freenode( &loc );
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return result;
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return result;
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}
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}
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/*
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/*
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* _unlink_r
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* _unlink_r
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*
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*
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* This is the Newlib dependent reentrant version of unlink().
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* This is the Newlib dependent reentrant version of unlink().
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*/
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*/
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#if defined(RTEMS_NEWLIB)
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#if defined(RTEMS_NEWLIB)
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#include <reent.h>
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#include <reent.h>
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int _unlink_r(
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int _unlink_r(
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struct _reent *ptr,
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struct _reent *ptr,
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const char *path
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const char *path
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)
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)
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{
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{
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return unlink( path );
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return unlink( path );
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}
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}
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#endif
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#endif
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