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);
55 extern const char *blkid_dev_devname(blkid_dev dev);
57 extern blkid_dev_iterate blkid_dev_iterate_begin(blkid_cache cache);
58 extern int blkid_dev_set_search(blkid_dev_iterate iter,
59 char *search_type, char *search_value);
60 extern int blkid_dev_next(blkid_dev_iterate iterate, blkid_dev *dev);
61 extern void blkid_dev_iterate_end(blkid_dev_iterate iterate);
64 extern char *blkid_devno_to_devname(dev_t devno);
67 extern int blkid_probe_all(blkid_cache cache);
68 extern blkid_dev blkid_get_dev(blkid_cache cache, const char *devname,
72 extern blkid_loff_t blkid_get_dev_size(int fd);
75 int blkid_known_fstype(const char *fstype);
76 extern blkid_dev blkid_verify(blkid_cache cache, blkid_dev dev);
81 extern char *blkid_get_tag_value(blkid_cache cache, const char *tagname,
83 extern char *blkid_get_devname(blkid_cache cache, const char *token,
87 extern blkid_tag_iterate blkid_tag_iterate_begin(blkid_dev dev);
88 extern int blkid_tag_next(blkid_tag_iterate iterate,
89 const char **type, const char **value);
90 extern void blkid_tag_iterate_end(blkid_tag_iterate iterate);
91 extern int blkid_dev_has_tag(blkid_dev dev, const char *type,
93 extern blkid_dev blkid_find_dev_with_tag(blkid_cache cache,
96 extern int blkid_parse_tag_string(const char *token, char **ret_type,
100 extern int blkid_parse_version_string(const char *ver_string);
101 extern int blkid_get_library_version(const char **ver_string,
102 const char **date_string);
108 #endif /* _BLKID_BLKID_H */