/filesystems/unixfs/ancientfs/ancientfs_cpio_odc.h

http://macfuse.googlecode.com/ · C Header · 68 lines · 50 code · 10 blank · 8 comment · 0 complexity · a3053bb15e096b75559fef88aec58789 MD5 · raw file 

    

  1. /*
    2. 

  2.  * Ancient UNIX File Systems for MacFUSE
    3. 

  3.  * Amit Singh
    4. 

  4.  * http://osxbook.com
    5. 

  5.  */
    6. 

  6. 

  7. #ifndef _ANCIENTFS_CPIO_ODC_H_
    8. 

  8. #define _ANCIENTFS_CPIO_ODC_H_
    9. 

  9. 

  10. #include "unixfs_internal.h"
    11. 

  11. #include "ancientfs.h"
    12. 

  12. 

  13. #define ROOTINO  1
    14. 

  14. 

  15. struct filsys
    16. 

  16. {
    17. 

  17.     uint32_t s_fsize;
    18. 

  18.     uint32_t s_files;
    19. 

  19.     uint32_t s_directories;
    20. 

  20.     uint32_t s_lastino;
    21. 

  21.     uint32_t s_dataoffset;
    22. 

  22.     uint32_t s_needsswap;
    23. 

  23.     struct inode* s_rootip;
    24. 

  24. };
    25. 

  25. 

  26. #define CPIO_ODC_BLOCK       512
    27. 

  27. #define CPIO_ODC_MAGIC       "070707"
    28. 

  28. #define CPIO_ODC_MAGLEN      6
    29. 

  29. #define CPIO_ODC_TRAILER     "TRAILER!!!"
    30. 

  30. #define CPIO_ODC_TRAILER_LEN (sizeof(CPIO_ODC_TRAILER)/sizeof(unsigned char))
    31. 

  31. 

  32. struct cpio_odc_header {
    33. 

  33.     char c_magic[6];
    34. 

  34.     char c_dev[6];
    35. 

  35.     char c_ino[6];
    36. 

  36.     char c_mode[6];
    37. 

  37.     char c_uid[6];
    38. 

  38.     char c_gid[6];
    39. 

  39.     char c_nlink[6];
    40. 

  40.     char c_rdev[6];
    41. 

  41.     char c_mtime[11];
    42. 

  42.     char c_namesize[6];
    43. 

  43.     char c_filesize[11];
    44. 

  44. /*  char c_name[c_namesize]; */
    45. 

  45. /*  char c_data[c_filesize]; */
    46. 

  46. } __attribute__((packed));
    47. 

  47. 

  48. struct cpio_odc_node_info {
    49. 

  49.     struct inode*              ci_self;
    50. 

  50.     struct cpio_odc_node_info* ci_parent;
    51. 

  51.     struct cpio_odc_node_info* ci_children;
    52. 

  52.     struct cpio_odc_node_info* ci_next_sibling;
    53. 

  53.     char*                      ci_name;
    54. 

  54.     char*                      ci_linktargetname;
    55. 

  55. };
    56. 

  56. 

  57. /* modes */
    58. 

  58. #define IALLOC  0100000 /* i-node is allocated */
    59. 

  59. #define ILARG   010000  /* large file */
    60. 

  60. #define IFMT    0170000 /* type of file */
    61. 

  61. 

  62. static inline mode_t
    63. 

  63. ancientfs_cpio_odc_mode(mode_t mode, uint32_t flags)
    64. 

  64. {
    65. 

  65.     return mode & (uint16_t)~(IALLOC & ILARG);
    66. 

  66. }
    67. 

  67. 

  68. #endif /* _ANCIENTFS_CPIO_ODC_H_ */
    69.