学步园

getnameinfo:

#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>

int main()
{
	struct sockaddr_in addrSrv;
	bzero(&addrSrv, sizeof(addrSrv));
	addrSrv.sin_family = AF_INET;
	addrSrv.sin_addr.s_addr = inet_addr("127.0.0.1");
	addrSrv.sin_port = htons(6000);

	char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
	getnameinfo((struct sockaddr*)&addrSrv, sizeof(addrSrv),
			hbuf, sizeof(hbuf),
			sbuf, sizeof(sbuf),
			NI_NUMERICHOST|NI_NUMERICSERV);

	printf("hbuf:%s sbuf:%s\n", hbuf, sbuf);

	return 0;
}