uint32.c 1.7 KB

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  1. /*
  2. +----------------------------------------------------------------------+
  3. | PHP Version 5 |
  4. +----------------------------------------------------------------------+
  5. | Copyright (c) 1997-2016 The PHP Group |
  6. +----------------------------------------------------------------------+
  7. | This source file is subject to version 3.01 of the PHP license, |
  8. | that is bundled with this package in the file LICENSE, and is |
  9. | available through the world-wide-web at the following url: |
  10. | http://www.php.net/license/3_01.txt |
  11. | If you did not receive a copy of the PHP license and are unable to |
  12. | obtain it through the world-wide-web, please send a note to |
  13. | license@php.net so we can mail you a copy immediately. |
  14. +----------------------------------------------------------------------+
  15. | Author: Marcus Boerger <helly@php.net> |
  16. +----------------------------------------------------------------------+
  17. */
  18. /* $Id$ */
  19. /* incorporated from D.J.Bernstein's cdb-0.75 (http://cr.yp.to/cdb.html)*/
  20. #ifdef HAVE_CONFIG_H
  21. #include "config.h"
  22. #endif
  23. #include "php.h"
  24. #include "uint32.h"
  25. /* {{{ uint32_pack */
  26. void uint32_pack(char *out, uint32 in)
  27. {
  28. out[0] = in&0xff; in>>=8;
  29. out[1] = in&0xff; in>>=8;
  30. out[2] = in&0xff; in>>=8;
  31. out[3] = in&0xff;
  32. }
  33. /* }}} */
  34. /* {{{ uint32_unpack */
  35. void uint32_unpack(const char *in, uint32 *out)
  36. {
  37. *out = (((uint32)(unsigned char)in[3])<<24) |
  38. (((uint32)(unsigned char)in[2])<<16) |
  39. (((uint32)(unsigned char)in[1])<<8) |
  40. (((uint32)(unsigned char)in[0]));
  41. }
  42. /* }}} */