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