[3320] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * blkid.h - Interface for libblkid, a library to identify block devices
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| 4 | *
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| 5 | * Copyright (C) 2001 Andreas Dilger
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| 6 | * Copyright (C) 2003 Theodore Ts'o
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| 7 | *
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| 8 | * %Begin-Header%
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| 9 | * This file may be redistributed under the terms of the
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| 10 | * GNU Lesser General Public License.
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| 11 | * %End-Header%
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| 12 | */
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| 13 | #ifndef BLKID_BLKID_H
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| 14 | #define BLKID_BLKID_H 1
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| 15 |
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| 16 | #include <sys/types.h>
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| 17 | #include <linux/types.h>
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| 18 |
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| 19 | #ifdef __cplusplus
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| 20 | extern "C" {
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| 21 | #endif
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| 22 |
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| 23 | #define BLKID_VERSION "1.0.0"
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| 24 | #define BLKID_DATE "12-Feb-2003"
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| 25 |
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| 26 | typedef struct blkid_struct_dev *blkid_dev;
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| 27 | typedef struct blkid_struct_cache *blkid_cache;
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| 28 | typedef __s64 blkid_loff_t;
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| 29 |
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| 30 | typedef struct blkid_struct_tag_iterate *blkid_tag_iterate;
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| 31 | typedef struct blkid_struct_dev_iterate *blkid_dev_iterate;
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| 32 |
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| 33 | /*
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| 34 | * Flags for blkid_get_dev
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| 35 | *
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| 36 | * BLKID_DEV_CREATE Create an empty device structure if not found
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| 37 | * in the cache.
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| 38 | * BLKID_DEV_VERIFY Make sure the device structure corresponds
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| 39 | * with reality.
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| 40 | * BLKID_DEV_FIND Just look up a device entry, and return NULL
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| 41 | * if it is not found.
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| 42 | * BLKID_DEV_NORMAL Get a valid device structure, either from the
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| 43 | * cache or by probing the device.
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| 44 | */
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| 45 | #define BLKID_DEV_FIND 0x0000
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| 46 | #define BLKID_DEV_CREATE 0x0001
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| 47 | #define BLKID_DEV_VERIFY 0x0002
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| 48 | #define BLKID_DEV_NORMAL (BLKID_DEV_CREATE | BLKID_DEV_VERIFY)
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| 49 |
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| 50 | /* cache.c */
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| 51 | extern void blkid_put_cache(blkid_cache cache);
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| 52 | extern int blkid_get_cache(blkid_cache *cache, const char *filename);
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| 53 |
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| 54 | /* dev.c */
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| 55 | extern const char *blkid_dev_devname(blkid_dev dev);
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| 56 |
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| 57 | extern blkid_dev_iterate blkid_dev_iterate_begin(blkid_cache cache);
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| 58 | extern int blkid_dev_set_search(blkid_dev_iterate iter,
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| 59 | char *search_type, char *search_value);
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| 60 | extern int blkid_dev_next(blkid_dev_iterate iterate, blkid_dev *dev);
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| 61 | extern void blkid_dev_iterate_end(blkid_dev_iterate iterate);
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| 62 |
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| 63 | /* devno.c */
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| 64 | extern char *blkid_devno_to_devname(dev_t devno);
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| 65 |
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| 66 | /* devname.c */
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| 67 | extern int blkid_probe_all(blkid_cache cache);
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| 68 | extern int blkid_probe_all_new(blkid_cache cache);
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| 69 | extern blkid_dev blkid_get_dev(blkid_cache cache, const char *devname,
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| 70 | int flags);
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| 71 |
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| 72 | /* getsize.c */
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| 73 | extern blkid_loff_t blkid_get_dev_size(int fd);
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| 74 |
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| 75 | /* probe.c */
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| 76 | int blkid_known_fstype(const char *fstype);
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| 77 | extern blkid_dev blkid_verify(blkid_cache cache, blkid_dev dev);
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| 78 |
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| 79 | /* read.c */
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| 80 |
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| 81 | /* resolve.c */
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| 82 | extern char *blkid_get_tag_value(blkid_cache cache, const char *tagname,
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| 83 | const char *devname);
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| 84 | extern char *blkid_get_devname(blkid_cache cache, const char *token,
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| 85 | const char *value);
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| 86 |
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| 87 | /* tag.c */
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| 88 | extern blkid_tag_iterate blkid_tag_iterate_begin(blkid_dev dev);
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| 89 | extern int blkid_tag_next(blkid_tag_iterate iterate,
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| 90 | const char **type, const char **value);
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| 91 | extern void blkid_tag_iterate_end(blkid_tag_iterate iterate);
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| 92 | extern int blkid_dev_has_tag(blkid_dev dev, const char *type,
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| 93 | const char *value);
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| 94 | extern blkid_dev blkid_find_dev_with_tag(blkid_cache cache,
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| 95 | const char *type,
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| 96 | const char *value);
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| 97 | extern int blkid_parse_tag_string(const char *token, char **ret_type,
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| 98 | char **ret_val);
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| 99 |
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| 100 | #ifdef __cplusplus
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| 101 | }
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| 102 | #endif
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| 103 |
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| 104 | #endif
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