lib/libfsid/libfsid.h

   1 /*
   2  * Copyright (c) 2010 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Alex Hornung <ahornung@gmail.com>
   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  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #ifndef LIBFSID_H
  36 #define LIBFSID_H
  37
  38 #include <sys/types.h>
  39 #include <sys/uio.h>
  40
  41 #include <err.h>
  42 #include <fcntl.h>
  43 #include <stdio.h>
  44 #include <stdlib.h>
  45 #include <string.h>
  46 #include <unistd.h>
  47
  48 typedef enum {
  49         FSID_UNKNOWN,
  50         FSID_HAMMER,
  51         FSID_UFS,
  52         FSID_CD9660,
  53         FSID_EXT2,
  54         FSID_MSDOSFS
  55 } fsid_t;
  56
  57 typedef fsid_t (probe_func_t)(const char *);
  58 typedef char *(volname_func_t)(const char *);
  59
  60 struct fs_type {
  61         const char      *fs_name;
  62         probe_func_t    *fs_probe;
  63         volname_func_t  *fs_volname;
  64 };
  65
  66 probe_func_t hammer_probe;
  67 probe_func_t ufs_probe;
  68 probe_func_t cd9660_probe;
  69 probe_func_t ext2_probe;
  70 probe_func_t msdosfs_probe;
  71
  72 volname_func_t hammer_volname;
  73 volname_func_t ufs_volname;
  74 volname_func_t cd9660_volname;
  75 volname_func_t ext2_volname;
  76 volname_func_t msdosfs_volname;
  77
  78 fsid_t fsid_probe(const char *dev, const char *fs_name);
  79 fsid_t fsid_probe_all(const char *dev);
  80
  81 char *fsid_volname(const char *dev, const char *fs_name);
  82 char *fsid_volname_all(const char *dev);
  83
  84 /* Extra functions */
  85 const char *fsid_fsname(fsid_t);
  86 int fsid_fs_count(void);
  87
  88 #ifdef _FSID_INTERNAL
  89 int fsid_dev_read(const char *dev, off_t off, size_t len, char *buf);
  90 #endif
  91
  92 #endif /* LIBFSID_H */