15.11.c

该程序包详细讲述了Linux环境下的Socket编程

#include <stdio.h>
#include <arpa/inet.h>

int  main()
{
   long local;
   int port;
   local =123456;
   port=1024;
   printf("net: %d\n",htonl(local));
   printf("net: %d\n",htons(port));
   printf("local: %d\n",ntohl(htonl(local)));
   printf("local: %d\n",ntohs(htons(port)));  
}