1 /* 2 * Written by J.T. Conklin <jtc@netbsd.org>. 3 * Public domain. 4 */ 5 6 #if defined(LIBC_SCCS) && !defined(lint) 7 static char *rcsid = "$OpenBSD: ntohl.c,v 1.3 1996/08/19 08:29:33 tholo Exp $"; 8 #endif /* LIBC_SCCS and not lint */ 9 10 #include <sys/types.h> 11 #include <machine/endian.h> 12 13 #undef ntohl 14 15 unsigned long 16 ntohl(x) 17 unsigned long x; 18 { 19 u_int32_t y = x; 20 21 #if BYTE_ORDER == LITTLE_ENDIAN 22 u_char *s = (u_char *)&y; 23 return (u_int32_t)(s[0] << 24 | s[1] << 16 | s[2] << 8 | s[3]); 24 #else 25 return y; 26 #endif 27 } 28