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C/C++ Source or Header  |  2008-10-18  |  3.2 KB  |  111 lines
  1. /*
  2.  * blkid.h - Interface for libblkid, a library to identify block devices
  3.  *
  4.  * Copyright (C) 2001 Andreas Dilger
  5.  * Copyright (C) 2003 Theodore Ts'o
  6.  *
  7.  * %Begin-Header%
  8.  * This file may be redistributed under the terms of the
  9.  * GNU Lesser General Public License.
  10.  * %End-Header%
  11.  */
  12.  
  13. #ifndef _BLKID_BLKID_H
  14. #define _BLKID_BLKID_H
  15.  
  16. #include <sys/types.h>
  17. #include <blkid/blkid_types.h>
  18.  
  19. #ifdef __cplusplus
  20. extern "C" {
  21. #endif
  22.  
  23. #define BLKID_VERSION    "1.0.0"
  24. #define BLKID_DATE    "12-Feb-2003"
  25.  
  26. typedef struct blkid_struct_dev *blkid_dev;
  27. typedef struct blkid_struct_cache *blkid_cache;
  28. typedef __s64 blkid_loff_t;
  29.  
  30. typedef struct blkid_struct_tag_iterate *blkid_tag_iterate;
  31. typedef 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 */
  51. extern void blkid_put_cache(blkid_cache cache);
  52. extern int blkid_get_cache(blkid_cache *cache, const char *filename);
  53. extern void blkid_gc_cache(blkid_cache cache);
  54.  
  55. /* dev.c */
  56. extern const char *blkid_dev_devname(blkid_dev dev);
  57.  
  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);
  63.  
  64. /* devno.c */
  65. extern char *blkid_devno_to_devname(dev_t devno);
  66.  
  67. /* devname.c */
  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,
  71.                    int flags);
  72.  
  73. /* getsize.c */
  74. extern blkid_loff_t blkid_get_dev_size(int fd);
  75.  
  76. /* probe.c */
  77. int blkid_known_fstype(const char *fstype);
  78. extern blkid_dev blkid_verify(blkid_cache cache, blkid_dev dev);
  79.  
  80. /* read.c */
  81.  
  82. /* resolve.c */
  83. extern char *blkid_get_tag_value(blkid_cache cache, const char *tagname,
  84.                        const char *devname);
  85. extern char *blkid_get_devname(blkid_cache cache, const char *token,
  86.                    const char *value);
  87.  
  88. /* tag.c */
  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,
  94.                  const char *value);
  95. extern blkid_dev blkid_find_dev_with_tag(blkid_cache cache,
  96.                      const char *type,
  97.                      const char *value);
  98. extern int blkid_parse_tag_string(const char *token, char **ret_type,
  99.                   char **ret_val);
  100.  
  101. /* version.c */
  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);
  105.  
  106. #ifdef __cplusplus
  107. }
  108. #endif
  109.  
  110. #endif /* _BLKID_BLKID_H */
  111.