1 /* $OpenBSD: htons.c,v 1.8 2005/08/06 20:30:03 espie Exp $ */ 2 /* 3 * Written by J.T. Conklin <jtc@netbsd.org>. 4 * Public domain. 5 */ 6 7 #include <sys/types.h> 8 #include <machine/endian.h> 9 10 #undef htons 11 12 u_int16_t 13 htons(u_int16_t x) 14 { 15 #if BYTE_ORDER == LITTLE_ENDIAN 16 u_char *s = (u_char *) &x; 17 return (u_int16_t)(s[0] << 8 | s[1]); 18 #else 19 return x; 20 #endif 21 } 22