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cpio.h

cpio.h 2.2 KB
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  1. /* Extended cpio format from POSIX.1.
    2. 

  2.    This file is part of the GNU C Library.
    3. 

  3.    Copyright (C) 1992-2020 Free Software Foundation, Inc.
    4. 

  4.    NOTE: The canonical source of this file is maintained with the GNU cpio.
    5. 

  5. 

  6.    The GNU C Library is free software; you can redistribute it and/or
    7. 

  7.    modify it under the terms of the GNU Lesser General Public
    8. 

  8.    License as published by the Free Software Foundation; either
    9. 

  9.    version 2.1 of the License, or (at your option) any later version.
    10. 

  10. 

  11.    The GNU C Library is distributed in the hope that it will be useful,
    12. 

  12.    but WITHOUT ANY WARRANTY; without even the implied warranty of
    13. 

  13.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    14. 

  14.    Lesser General Public License for more details.
    15. 

  15. 

  16.    You should have received a copy of the GNU Lesser General Public
    17. 

  17.    License along with the GNU C Library; if not, see
    18. 

  18.    <https://www.gnu.org/licenses/>.  */
    19. 

  19. 

  20. #ifndef _CPIO_H
    21. 

  21. #define _CPIO_H 1
    22. 

  22. 

  23. /* A cpio archive consists of a sequence of files.
    24. 

  24.    Each file has a 76 byte header,
    25. 

  25.    a variable length, NUL terminated filename,
    26. 

  26.    and variable length file data.
    27. 

  27.    A header for a filename "TRAILER!!!" indicates the end of the archive.  */
    28. 

  28. 

  29. /* All the fields in the header are ISO 646 (approximately ASCII) strings
    30. 

  30.    of octal numbers, left padded, not NUL terminated.
    31. 

  31. 

  32.    Field Name	Length in Bytes	Notes
    33. 

  33.    c_magic	6		must be "070707"
    34. 

  34.    c_dev	6
    35. 

  35.    c_ino	6
    36. 

  36.    c_mode	6		see below for value
    37. 

  37.    c_uid	6
    38. 

  38.    c_gid	6
    39. 

  39.    c_nlink	6
    40. 

  40.    c_rdev	6		only valid for chr and blk special files
    41. 

  41.    c_mtime	11
    42. 

  42.    c_namesize	6		count includes terminating NUL in pathname
    43. 

  43.    c_filesize	11		must be 0 for FIFOs and directories  */
    44. 

  44. 

  45. /* Value for the field `c_magic'.  */
    46. 

  46. #define MAGIC	"070707"
    47. 

  47. 

  48. /* Values for c_mode, OR'd together: */
    49. 

  49. 

  50. #define C_IRUSR		000400
    51. 

  51. #define C_IWUSR		000200
    52. 

  52. #define C_IXUSR		000100
    53. 

  53. #define C_IRGRP		000040
    54. 

  54. #define C_IWGRP		000020
    55. 

  55. #define C_IXGRP		000010
    56. 

  56. #define C_IROTH		000004
    57. 

  57. #define C_IWOTH		000002
    58. 

  58. #define C_IXOTH		000001
    59. 

  59. 

  60. #define C_ISUID		004000
    61. 

  61. #define C_ISGID		002000
    62. 

  62. #define C_ISVTX		001000
    63. 

  63. 

  64. #define C_ISBLK		060000
    65. 

  65. #define C_ISCHR		020000
    66. 

  66. #define C_ISDIR		040000
    67. 

  67. #define C_ISFIFO	010000
    68. 

  68. #define C_ISSOCK	0140000
    69. 

  69. #define C_ISLNK		0120000
    70. 

  70. #define C_ISCTG		0110000
    71. 

  71. #define C_ISREG		0100000
    72. 

  72. 

  73. #endif /* cpio.h */
    74.