1 /* vi: set sw=4 ts=4: */
3 * blkid.h - Interface for libblkid, a library to identify block devices
5 * Copyright (C) 2001 Andreas Dilger
6 * Copyright (C) 2003 Theodore Ts'o
9 * This file may be redistributed under the terms of the
10 * GNU Lesser General Public License.
14 #ifndef _BLKID_BLKID_H
15 #define _BLKID_BLKID_H
17 #include <sys/types.h>
18 #include <linux/types.h>
24 #define BLKID_VERSION "1.0.0"
25 #define BLKID_DATE "12-Feb-2003"
27 typedef struct blkid_struct_dev *blkid_dev;
28 typedef struct blkid_struct_cache *blkid_cache;
29 typedef __s64 blkid_loff_t;
31 typedef struct blkid_struct_tag_iterate *blkid_tag_iterate;
32 typedef struct blkid_struct_dev_iterate *blkid_dev_iterate;
35 * Flags for blkid_get_dev
37 * BLKID_DEV_CREATE Create an empty device structure if not found
39 * BLKID_DEV_VERIFY Make sure the device structure corresponds
41 * BLKID_DEV_FIND Just look up a device entry, and return NULL
43 * BLKID_DEV_NORMAL Get a valid device structure, either from the
44 * cache or by probing the device.
46 #define BLKID_DEV_FIND 0x0000
47 #define BLKID_DEV_CREATE 0x0001
48 #define BLKID_DEV_VERIFY 0x0002
49 #define BLKID_DEV_NORMAL (BLKID_DEV_CREATE | BLKID_DEV_VERIFY)
52 extern void blkid_put_cache(blkid_cache cache);
53 extern int blkid_get_cache(blkid_cache *cache, const char *filename);
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 */