inet_ntoa.c

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· C语言 代码 · 共 22 行

/*	inet_ntoa.c	4.1	83/06/12	*/

/*
 * 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);
}