操作系统SunOS 4.1.3版本的源码

				#if !defined(lint) && defined(SCCSIDS)				static	char sccsid[] = "@(#)inet_ntoa.c 1.1 92/07/30 SMI"; /* from UCB 4.1 83/06/12 */				#endif								/*				 * Convert network-format internet address				 * to base 256 d.d.d.d representation.				 */				#include 				#include 								char *				inet_ntoa(in)					struct in_addr in;				{					static char b[18];					register char *p;									p = (char *)∈				#define	UC(b)	(((int)b)&0xff)					sprintf(b, "%d.%d.%d.%d", UC(p[0]), UC(p[1]), UC(p[2]), UC(p[3]));					return (b);				}