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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libc/] [imfs_mknod.c] - Blame information for rev 30

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1 30 unneback
/*
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 *  IMFS_mknod
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 *
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 *  Routine to create a node in the IMFS file system.
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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_mknod.c,v 1.2 2001-09-27 12:01:15 chris Exp $
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 */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <stdlib.h>
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#include "imfs.h"
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#include "libio_.h"
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int IMFS_mknod(
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  const char                        *token,      /* IN */
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  mode_t                             mode,       /* IN */
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  dev_t                              dev,        /* IN */
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  rtems_filesystem_location_info_t  *pathloc     /* IN/OUT */
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)
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{
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  IMFS_token_types   type = 0;
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  IMFS_jnode_t      *new_node;
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  int                result;
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  char               new_name[ IMFS_NAME_MAX + 1 ];
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  IMFS_types_union   info;
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  IMFS_get_token( token, new_name, &result );
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  /*
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   *  Figure out what type of IMFS node this is.
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   */
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  if ( S_ISDIR(mode) )
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    type = IMFS_DIRECTORY;
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  else if ( S_ISREG(mode) )
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    type = IMFS_MEMORY_FILE;
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  else if ( S_ISBLK(mode) || S_ISCHR(mode) ) {
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    type = IMFS_DEVICE;
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    rtems_filesystem_split_dev_t( dev, info.device.major, info.device.minor );
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  } else  {
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    set_errno_and_return_minus_one( EINVAL );
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  }
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  /*
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   *  Allocate and fill in an IMFS jnode
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   */
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  new_node = IMFS_create_node(
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    pathloc,
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    type,
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    new_name,
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    mode,
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    &info
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  );
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  if ( !new_node )
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    set_errno_and_return_minus_one( ENOMEM );
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  return 0;
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}
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