2 * blkid.h - Interface for libblkid, a library to identify block devices
4 * Copyright (C) 2001 Andreas Dilger
5 * Copyright (C) 2003 Theodore Ts'o
8 * This file may be redistributed under the terms of the
9 * GNU Lesser General Public License.
13 #ifndef _BLKID_BLKID_H
14 #define _BLKID_BLKID_H
16 #include <sys/types.h>
17 #include <blkid/blkid_types.h>
23 #define BLKID_VERSION "1.0.0"
24 #define BLKID_DATE "12-Feb-2003"
26 typedef struct blkid_struct_dev
*blkid_dev
;
27 typedef struct blkid_struct_cache
*blkid_cache
;
28 typedef __s64 blkid_loff_t
;
30 typedef struct blkid_struct_tag_iterate
*blkid_tag_iterate
;
31 typedef struct blkid_struct_dev_iterate
*blkid_dev_iterate
;
34 * Flags for blkid_get_dev
36 * BLKID_DEV_CREATE Create an empty device structure if not found
38 * BLKID_DEV_VERIFY Make sure the device structure corresponds
40 * BLKID_DEV_FIND Just look up a device entry, and return NULL
42 * BLKID_DEV_NORMAL Get a valid device structure, either from the
43 * cache or by probing the device.
45 #define BLKID_DEV_FIND 0x0000
46 #define BLKID_DEV_CREATE 0x0001
47 #define BLKID_DEV_VERIFY 0x0002
48 #define BLKID_DEV_NORMAL (BLKID_DEV_CREATE | BLKID_DEV_VERIFY)
51 extern void blkid_put_cache(blkid_cache cache
);
52 extern int blkid_get_cache(blkid_cache
*cache
, const char *filename
);
53 extern void blkid_gc_cache(blkid_cache cache
);
56 extern const char *blkid_dev_devname(blkid_dev dev
);
58 extern blkid_dev_iterate
blkid_dev_iterate_begin(blkid_cache cache
);
59 extern int blkid_dev_set_search(blkid_dev_iterate iter
,
60 char *search_type
, char *search_value
);
61 extern int blkid_dev_next(blkid_dev_iterate iterate
, blkid_dev
*dev
);
62 extern void blkid_dev_iterate_end(blkid_dev_iterate iterate
);
65 extern char *blkid_devno_to_devname(dev_t devno
);
68 extern int blkid_probe_all(blkid_cache cache
);
69 extern int blkid_probe_all_new(blkid_cache cache
);
70 extern blkid_dev
blkid_get_dev(blkid_cache cache
, const char *devname
,
74 extern blkid_loff_t
blkid_get_dev_size(int fd
);
77 int blkid_known_fstype(const char *fstype
);
78 extern blkid_dev
blkid_verify(blkid_cache cache
, blkid_dev dev
);
83 extern char *blkid_get_tag_value(blkid_cache cache
, const char *tagname
,
85 extern char *blkid_get_devname(blkid_cache cache
, const char *token
,
89 extern blkid_tag_iterate
blkid_tag_iterate_begin(blkid_dev dev
);
90 extern int blkid_tag_next(blkid_tag_iterate iterate
,
91 const char **type
, const char **value
);
92 extern void blkid_tag_iterate_end(blkid_tag_iterate iterate
);
93 extern int blkid_dev_has_tag(blkid_dev dev
, const char *type
,
95 extern blkid_dev
blkid_find_dev_with_tag(blkid_cache cache
,
98 extern int blkid_parse_tag_string(const char *token
, char **ret_type
,
102 extern int blkid_parse_version_string(const char *ver_string
);
103 extern int blkid_get_library_version(const char **ver_string
,
104 const char **date_string
);
110 #endif /* _BLKID_BLKID_H */