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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libc/] [imfs_getchild.c] - Blame information for rev 596

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1 30 unneback
/*
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 *  IMFS_find_match_in_dir()
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 *
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 *  This routine returns the child name in the given directory.
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 *
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 *  COPYRIGHT (c) 1989-1999.
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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.OARcorp.com/rtems/license.html.
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 *
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 *  $Id: imfs_getchild.c,v 1.2 2001-09-27 12:01:15 chris Exp $
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 */
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#include <errno.h>
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#include <assert.h>
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#include "imfs.h"
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static char dotname[2] = ".";
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static char dotdotname[2] = "..";
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IMFS_jnode_t *IMFS_find_match_in_dir(
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  IMFS_jnode_t *directory,
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  char         *name
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)
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{
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  Chain_Node        *the_node;
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  Chain_Control     *the_chain;
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  IMFS_jnode_t      *the_jnode;
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  /*
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   *  Check for fatal errors.  A NULL directory show a problem in the
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   *  the IMFS code.
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   */
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  assert( directory );
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  if ( !name )
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    return 0;
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  assert( name );
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  if ( !directory )
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    return 0;
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  /*
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   *  Check for "." and ".."
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   */
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  if ( !strcmp( name, dotname ) )
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    return directory;
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  if ( !strcmp( name, dotdotname ) )
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    return directory->Parent;
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  the_chain = &directory->info.directory.Entries;
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  for ( the_node = the_chain->first;
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        !_Chain_Is_tail( the_chain, the_node );
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        the_node = the_node->next ) {
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    the_jnode = (IMFS_jnode_t *) the_node;
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    if ( !strcmp( name, the_jnode->name ) )
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      return the_jnode;
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  }
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  return 0;
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}

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