FreeBSD/Linux Kernel Cross Reference
sys/cddl/contrib/opensolaris/uts/common/sys/extdirent.h

     /*
      * CDDL HEADER START
      *
      * The contents of this file are subject to the terms of the
      * Common Development and Distribution License (the "License").
      * You may not use this file except in compliance with the License.
      *
      * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      * or http://www.opensolaris.org/os/licensing.
     * See the License for the specific language governing permissions
     * and limitations under the License.
     *
     * When distributing Covered Code, include this CDDL HEADER in each
     * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     * If applicable, add the following below this CDDL HEADER, with the
     * fields enclosed by brackets "[]" replaced with your own identifying
     * information: Portions Copyright [yyyy] [name of copyright owner]
     *
     * CDDL HEADER END
     */
    /*
     * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
     * Use is subject to license terms.
     */
    
    #ifndef _SYS_EXTDIRENT_H
    #define _SYS_EXTDIRENT_H
    
    #pragma ident   "%Z%%M% %I%     %E% SMI"
    
    #ifdef  __cplusplus
    extern "C" {
    #endif
    
    #include <sys/types.h>
    
    #if defined(_KERNEL)
    
    /*
     * Extended file-system independent directory entry.  This style of
     * dirent provides additional informational flag bits for each
     * directory entry.  This dirent will be returned instead of the
     * standard dirent if a VOP_READDIR() requests dirent flags via
     * V_RDDIR_ENTFLAGS, and if the file system supports the flags.
     */
    typedef struct edirent {
            ino64_t         ed_ino;         /* "inode number" of entry */
            off64_t         ed_off;         /* offset of disk directory entry */
            uint32_t        ed_eflags;      /* per-entry flags */
            unsigned short  ed_reclen;      /* length of this record */
            char            ed_name[1];     /* name of file */
    } edirent_t;
    
    #define EDIRENT_RECLEN(namelen) \
            ((offsetof(edirent_t, ed_name[0]) + 1 + (namelen) + 7) & ~ 7)
    #define EDIRENT_NAMELEN(reclen) \
            ((reclen) - (offsetof(edirent_t, ed_name[0])))
    
    /*
     * Extended entry flags
     *      Extended entries include a bitfield of extra information
     *      regarding that entry.
     */
    #define ED_CASE_CONFLICT  0x10  /* Disconsidering case, entry is not unique */
    
    /*
     * Extended flags accessor function
     */
    #define ED_CASE_CONFLICTS(x)    ((x)->ed_eflags & ED_CASE_CONFLICT)
    
    #endif /* defined(_KERNEL) */
    
    #ifdef  __cplusplus
    }
    #endif
    
    #endif  /* _SYS_EXTDIRENT_H */

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