inet_ntoa.c

来自「操作系统SunOS 4.1.3版本的源码」· C语言 代码 · 共 24 行

#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 <sys/types.h>
#include <netinet/in.h>

char *
inet_ntoa(in)
	struct in_addr in;
{
	static char b[18];
	register char *p;

	p = (char *)&in;
#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);
}