inet_pton/inet_ntop 例程及注意点
#include <stdio.h>#include <stdlib.h>#include <string.h>#include <unistd.h>#include <sys/socket.h>#include <netinet/in.h> int main (void){char IPdotdec; //存放点分十进制IP地址struct in_addr s; // IPv4地址结构体// 输入IP地址printf("Please input IP address: ");scanf("%s", IPdotdec);// 转换，都是网络字节序inet_pton(AF_INET, IPdotdec, (void *)&s);printf("inet_pton: 0x%x\n", s.s_addr); // 注意得到的字节序 // 反转换，都是网络字节序inet_ntop(AF_INET, (void *)&s, IPdotdec, 16);printf("inet_ntop: %s\n", IPdotdec);} inet_pton的输出是网络序的inet_ntop的输入是网络序的
页:
[1]