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gerrit.nordix.org / codeaurora / busybox / a7ccdeef396700d1ed78b9f97de0d10c706b169f / . / e2fsprogs / old_e2fsprogs / blkid / blkid.h
blob: 9a3c2afdbdd09101864dc19c9eb4bf201db64fda [file] [log] [blame]
Denis Vlasenkoc4f623e2006-12-26 01:30:59 +0000[diff] [blame]1/* vi: set sw=4 ts=4: */
2/*
3 * blkid.h - Interface for libblkid, a library to identify block devices
4 *
5 * Copyright (C) 2001 Andreas Dilger
6 * Copyright (C) 2003 Theodore Ts'o
7 *
8 * %Begin-Header%
9 * This file may be redistributed under the terms of the
10 * GNU Lesser General Public License.
11 * %End-Header%
12 */
Denis Vlasenkof81e8db2009-04-09 12:35:13 +0000[diff] [blame]13#ifndef BLKID_BLKID_H
14#define BLKID_BLKID_H 1
Denis Vlasenkoc4f623e2006-12-26 01:30:59 +0000[diff] [blame]15
16#include <sys/types.h>
17#include <linux/types.h>
18
19#ifdef __cplusplus
20extern "C" {
21#endif
22
23#define BLKID_VERSION "1.0.0"
24#define BLKID_DATE "12-Feb-2003"
25
26typedef struct blkid_struct_dev *blkid_dev;
27typedef struct blkid_struct_cache *blkid_cache;
28typedef __s64 blkid_loff_t;
29
30typedef struct blkid_struct_tag_iterate *blkid_tag_iterate;
31typedef struct blkid_struct_dev_iterate *blkid_dev_iterate;
32
33/*
34 * Flags for blkid_get_dev
35 *
36 * BLKID_DEV_CREATE Create an empty device structure if not found
37 * in the cache.
38 * BLKID_DEV_VERIFY Make sure the device structure corresponds
39 * with reality.
40 * BLKID_DEV_FIND Just look up a device entry, and return NULL
41 * if it is not found.
42 * BLKID_DEV_NORMAL Get a valid device structure, either from the
43 * cache or by probing the device.
44 */
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)
49
50/* cache.c */
51extern void blkid_put_cache(blkid_cache cache);
52extern int blkid_get_cache(blkid_cache *cache, const char *filename);
53
54/* dev.c */
55extern const char *blkid_dev_devname(blkid_dev dev);
56
57extern blkid_dev_iterate blkid_dev_iterate_begin(blkid_cache cache);
58extern int blkid_dev_set_search(blkid_dev_iterate iter,
59 char *search_type, char *search_value);
60extern int blkid_dev_next(blkid_dev_iterate iterate, blkid_dev *dev);
61extern void blkid_dev_iterate_end(blkid_dev_iterate iterate);
62
63/* devno.c */
64extern char *blkid_devno_to_devname(dev_t devno);
65
66/* devname.c */
67extern int blkid_probe_all(blkid_cache cache);
68extern int blkid_probe_all_new(blkid_cache cache);
69extern blkid_dev blkid_get_dev(blkid_cache cache, const char *devname,
70 int flags);
71
72/* getsize.c */
73extern blkid_loff_t blkid_get_dev_size(int fd);
74
75/* probe.c */
76int blkid_known_fstype(const char *fstype);
77extern blkid_dev blkid_verify(blkid_cache cache, blkid_dev dev);
78
79/* read.c */
80
81/* resolve.c */
82extern char *blkid_get_tag_value(blkid_cache cache, const char *tagname,
83 const char *devname);
84extern char *blkid_get_devname(blkid_cache cache, const char *token,
85 const char *value);
86
87/* tag.c */
88extern blkid_tag_iterate blkid_tag_iterate_begin(blkid_dev dev);
89extern int blkid_tag_next(blkid_tag_iterate iterate,
90 const char **type, const char **value);
91extern void blkid_tag_iterate_end(blkid_tag_iterate iterate);
92extern int blkid_dev_has_tag(blkid_dev dev, const char *type,
93 const char *value);
94extern blkid_dev blkid_find_dev_with_tag(blkid_cache cache,
95 const char *type,
96 const char *value);
97extern int blkid_parse_tag_string(const char *token, char **ret_type,
98 char **ret_val);
99
100#ifdef __cplusplus
101}
102#endif
103
Denis Vlasenkof81e8db2009-04-09 12:35:13 +0000[diff] [blame]104#endif