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Annotation of src/include/dirent.h, Revision 1.2

1.1       deraadt     1: /*     $NetBSD: dirent.h,v 1.9 1995/03/26 20:13:37 jtc Exp $   */
                      2:
                      3: /*-
                      4:  * Copyright (c) 1989, 1993
                      5:  *     The Regents of the University of California.  All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. Redistributions in binary form must reproduce the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer in the
                     14:  *    documentation and/or other materials provided with the distribution.
                     15:  * 3. All advertising materials mentioning features or use of this software
                     16:  *    must display the following acknowledgement:
                     17:  *     This product includes software developed by the University of
                     18:  *     California, Berkeley and its contributors.
                     19:  * 4. Neither the name of the University nor the names of its contributors
                     20:  *    may be used to endorse or promote products derived from this software
                     21:  *    without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     33:  * SUCH DAMAGE.
                     34:  *
                     35:  *     @(#)dirent.h    8.2 (Berkeley) 7/28/94
                     36:  */
                     37:
                     38: #ifndef _DIRENT_H_
                     39: #define _DIRENT_H_
                     40:
                     41: /*
1.2     ! deraadt    42:  * POSIX doesn't mandate this, but X/Open XPG 4.2 does.
        !            43:  */
        !            44: #ifndef _POSIX_SOURCE
        !            45: #include <sys/types.h>
        !            46: #endif
        !            47:
        !            48: /*
1.1       deraadt    49:  * The kernel defines the format of directory entries returned by
                     50:  * the getdirentries(2) system call.
                     51:  */
                     52: #include <sys/dirent.h>
                     53:
                     54: #ifdef _POSIX_SOURCE
                     55: typedef void * DIR;
                     56: #else
                     57:
                     58: #define        d_ino           d_fileno        /* backward compatibility */
                     59:
                     60: /* definitions for library routines operating on directories. */
                     61: #define        DIRBLKSIZ       1024
                     62:
                     63: /* structure describing an open directory. */
                     64: typedef struct _dirdesc {
                     65:        int     dd_fd;          /* file descriptor associated with directory */
                     66:        long    dd_loc;         /* offset in current buffer */
                     67:        long    dd_size;        /* amount of data returned by getdirentries */
                     68:        char    *dd_buf;        /* data buffer */
                     69:        int     dd_len;         /* size of data buffer */
                     70:        long    dd_seek;        /* magic cookie returned by getdirentries */
                     71:        long    dd_rewind;      /* magic cookie for rewinding */
                     72:        int     dd_flags;       /* flags for readdir */
                     73: } DIR;
                     74:
                     75: #define        dirfd(dirp)     ((dirp)->dd_fd)
                     76:
                     77: /* flags for opendir2 */
                     78: #define DTF_HIDEW      0x0001  /* hide whiteout entries */
                     79: #define DTF_NODUP      0x0002  /* don't return duplicate names */
                     80: #define DTF_REWIND     0x0004  /* rewind after reading union stack */
                     81: #define __DTF_READALL  0x0008  /* everything has been read */
                     82:
                     83: #ifndef NULL
                     84: #define        NULL    0
                     85: #endif
                     86:
                     87: #endif /* _POSIX_SOURCE */
                     88:
                     89: #ifndef _KERNEL
                     90:
                     91: #include <sys/cdefs.h>
                     92:
                     93: __BEGIN_DECLS
                     94: DIR *opendir __P((const char *));
                     95: struct dirent *readdir __P((DIR *));
                     96: void rewinddir __P((DIR *));
                     97: int closedir __P((DIR *));
                     98: #ifndef _POSIX_SOURCE
                     99: DIR *__opendir2 __P((const char *, int));
                    100: long telldir __P((const DIR *));
                    101: void seekdir __P((DIR *, long));
                    102: int scandir __P((const char *, struct dirent ***,
                    103:     int (*)(struct dirent *), int (*)(const void *, const void *)));
                    104: int alphasort __P((const void *, const void *));
                    105: int getdirentries __P((int, char *, int, long *));
                    106: #endif /* not POSIX */
                    107: __END_DECLS
                    108:
                    109: #endif /* !_KERNEL */
                    110:
                    111: #endif /* !_DIRENT_H_ */