ntohl.c revision 1.2
1/* $NetBSD: ntohl.c,v 1.5.6.1 1996/05/29 23:28:26 cgd Exp $ */ 2 3/* 4 * Written by J.T. Conklin <jtc@netbsd.org>. 5 * Public domain. 6 */ 7 8#if defined(LIBC_SCCS) && !defined(lint) 9static char *rcsid = "$NetBSD: ntohl.c,v 1.5.6.1 1996/05/29 23:28:26 cgd Exp $"; 10#endif 11 12#include <sys/types.h> 13#include <machine/endian.h> 14 15#undef ntohl 16 17unsigned long 18ntohl(x) 19 unsigned long x; 20{ 21 u_int32_t y = x; 22 23#if BYTE_ORDER == LITTLE_ENDIAN 24 u_char *s = (u_char *)&y; 25 return (u_int32_t)(s[0] << 24 | s[1] << 16 | s[2] << 8 | s[3]); 26#else 27 return y; 28#endif 29} 30