1*f14fb602SLionel Sambuc /* $NetBSD: htons.c,v 1.3 2012/03/21 20:02:56 he Exp $ */ 2b6cbf720SGianluca Guida 3b6cbf720SGianluca Guida /* 4b6cbf720SGianluca Guida * Written by J.T. Conklin <jtc@NetBSD.org>. 5b6cbf720SGianluca Guida * Public domain. 6b6cbf720SGianluca Guida */ 7b6cbf720SGianluca Guida 8b6cbf720SGianluca Guida #include <sys/cdefs.h> 9b6cbf720SGianluca Guida #if defined(LIBC_SCCS) && !defined(lint) 10*f14fb602SLionel Sambuc __RCSID("$NetBSD: htons.c,v 1.3 2012/03/21 20:02:56 he Exp $"); 11b6cbf720SGianluca Guida #endif 12b6cbf720SGianluca Guida 13b6cbf720SGianluca Guida #include <sys/types.h> 14b6cbf720SGianluca Guida 15b6cbf720SGianluca Guida #undef htons 16b6cbf720SGianluca Guida 17b6cbf720SGianluca Guida uint16_t htons(uint16_t x)18*f14fb602SLionel Sambuchtons(uint16_t x) 19b6cbf720SGianluca Guida { 20b6cbf720SGianluca Guida #if BYTE_ORDER == LITTLE_ENDIAN 21*f14fb602SLionel Sambuc u_char *s = (void *) &x; 22b6cbf720SGianluca Guida return (uint16_t)(s[0] << 8 | s[1]); 23b6cbf720SGianluca Guida #else 24b6cbf720SGianluca Guida return x; 25b6cbf720SGianluca Guida #endif 26b6cbf720SGianluca Guida } 27