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/filesystems/unixfs/ancientfs/ancientfs_cpio_newc.h

http://macfuse.googlecode.com/
C Header | 72 lines | 54 code | 10 blank | 8 comment | 0 complexity | 52e68cf44b790cba828b9d2fe78c9b64 MD5 | raw file
Possible License(s): Apache-2.0, BSD-3-Clause, GPL-2.0 
    

  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_NEWC_H_
    8. 

  8. #define _ANCIENTFS_CPIO_NEWC_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_NEWC_BLOCK       512
    27. 

  27. #define CPIO_NEWC_MAGIC       "070701"
    28. 

  28. #define CPIO_NEWCRC_MAGIC     "070702"
    29. 

  29. #define CPIO_NEWC_MAGLEN      6
    30. 

  30. #define CPIO_NEWC_TRAILER     "TRAILER!!!"
    31. 

  31. #define CPIO_NEWC_TRAILER_LEN (sizeof(CPIO_NEWC_TRAILER)/sizeof(unsigned char))
    32. 

  32. 

  33. struct cpio_newc_header {
    34. 

  34.     char c_magic[6];
    35. 

  35.     char c_ino[8];
    36. 

  36.     char c_mode[8];
    37. 

  37.     char c_uid[8];
    38. 

  38.     char c_gid[8];
    39. 

  39.     char c_nlink[8];
    40. 

  40.     char c_mtime[8];
    41. 

  41.     char c_filesize[8];
    42. 

  42.     char c_devmajor[8];
    43. 

  43.     char c_devminor[8];
    44. 

  44.     char c_rdevmajor[8];
    45. 

  45.     char c_rdevminor[8];
    46. 

  46.     char c_namesize[8];
    47. 

  47.     char c_check[8];
    48. 

  48. /*  char c_name[c_namesize rounded to 4 bytes]; */
    49. 

  49. /*  char c_data[c_filesize rounded to 4 bytes]; */
    50. 

  50. } __attribute__((packed));
    51. 

  51. 

  52. struct cpio_newc_node_info {
    53. 

  53.     struct inode*               ci_self;
    54. 

  54.     struct cpio_newc_node_info* ci_parent;
    55. 

  55.     struct cpio_newc_node_info* ci_children;
    56. 

  56.     struct cpio_newc_node_info* ci_next_sibling;
    57. 

  57.     char*                       ci_name;
    58. 

  58.     char*                       ci_linktargetname;
    59. 

  59. };
    60. 

  60. 

  61. /* modes */
    62. 

  62. #define IALLOC  0100000 /* i-node is allocated */
    63. 

  63. #define ILARG   010000  /* large file */
    64. 

  64. #define IFMT    0170000 /* type of file */
    65. 

  65. 

  66. static inline mode_t
    67. 

  67. ancientfs_cpio_newc_mode(mode_t mode, uint32_t flags)
    68. 

  68. {
    69. 

  69.     return mode & (uint16_t)~(IALLOC & ILARG);
    70. 

  70. }
    71. 

  71. 

  72. #endif /* _ANCIENTFS_CPIO_NEWC_H_ */
    73. 

  73.