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cpack.h

cpack.h 2.4 KB
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  1. /*-
    2. 

  2.  * Copyright (c) 2003, 2004 David Young.  All rights reserved.
    3. 

  3.  *
    4. 

  4.  * Redistribution and use in source and binary forms, with or without
    5. 

  5.  * modification, are permitted provided that the following conditions
    6. 

  6.  * are met:
    7. 

  7.  * 1. Redistributions of source code must retain the above copyright
    8. 

  8.  *    notice, this list of conditions and the following disclaimer.
    9. 

  9.  * 2. Redistributions in binary form must reproduce the above copyright
    10. 

  10.  *    notice, this list of conditions and the following disclaimer in the
    11. 

  11.  *    documentation and/or other materials provided with the distribution.
    12. 

  12.  * 3. The name of David Young may not be used to endorse or promote
    13. 

  13.  *    products derived from this software without specific prior
    14. 

  14.  *    written permission.
    15. 

  15.  *
    16. 

  16.  * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY
    17. 

  17.  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
    18. 

  18.  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
    19. 

  19.  * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL DAVID
    20. 

  20.  * YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
    21. 

  21.  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
    22. 

  22.  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    23. 

  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    24. 

  24.  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    25. 

  25.  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    26. 

  26.  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
    27. 

  27.  * OF SUCH DAMAGE.
    28. 

  28.  */
    29. 

  29. 

  30. #ifndef _CPACK_H
    31. 

  31. #define _CPACK_H
    32. 

  32. 

  33. struct cpack_state {
    34. 

  34. 	const uint8_t					*c_buf;
    35. 

  35. 	const uint8_t					*c_next;
    36. 

  36. 	size_t						 c_len;
    37. 

  37. };
    38. 

  38. 

  39. int cpack_init(struct cpack_state *, const uint8_t *, size_t);
    40. 

  40. 

  41. int cpack_uint8(struct cpack_state *, uint8_t *);
    42. 

  42. int cpack_uint16(struct cpack_state *, uint16_t *);
    43. 

  43. int cpack_uint32(struct cpack_state *, uint32_t *);
    44. 

  44. int cpack_uint64(struct cpack_state *, uint64_t *);
    45. 

  45. 

  46. const uint8_t *cpack_next_boundary(const uint8_t *buf, const uint8_t *p, size_t alignment);
    47. 

  47. const uint8_t *cpack_align_and_reserve(struct cpack_state *cs, size_t wordsize);
    48. 

  48. 

  49. #define cpack_int8(__s, __p)	cpack_uint8((__s),  (uint8_t*)(__p))
    50. 

  50. #define cpack_int16(__s, __p)	cpack_uint16((__s), (uint16_t*)(__p))
    51. 

  51. #define cpack_int32(__s, __p)	cpack_uint32((__s), (uint32_t*)(__p))
    52. 

  52. #define cpack_int64(__s, __p)	cpack_uint64((__s), (uint64_t*)(__p))
    53. 

  53. 

  54. extern int cpack_advance(struct cpack_state *, const size_t);
    55. 

  55. 

  56. #endif /* _CPACK_H */
    57.