hton.c 1.4 KB

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  1. /* Copyright (C) 1993,97,2002 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, write to the Free
  13. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  14. 02111-1307 USA. */
  15. #include "api.h"
  16. #include <endian.h>
  17. uint32_t __htonl (uint32_t x)
  18. {
  19. #if BYTE_ORDER == BIG_ENDIAN
  20. return x;
  21. #elif BYTE_ORDER == LITTLE_ENDIAN
  22. return __bswap_32 (x);
  23. #else
  24. # error "What kind of system is this?"
  25. #endif
  26. }
  27. uint32_t __ntohl (uint32_t x)
  28. {
  29. return __htonl (x);
  30. }
  31. uint16_t __htons (uint16_t x)
  32. {
  33. #if BYTE_ORDER == BIG_ENDIAN
  34. return x;
  35. #elif BYTE_ORDER == LITTLE_ENDIAN
  36. return __bswap_16 (x);
  37. #else
  38. # error "What kind of system is this?"
  39. #endif
  40. }
  41. uint16_t __ntohs (uint16_t x)
  42. {
  43. return __htons (x);
  44. }