标题：linux c 通过hostname获得ip地址
出处：向东博客 专注WEB应用 构架之美 --- 构架之美，在于尽态极妍 | 应用之美，在于药到病除
时间：Sat, 24 Jun 2017 12:45:32 +0000
作者：jackxiang
地址：http://jackxiang.com/post/9257/

内容：

#include <stdio.h>
#include <netdb.h>
int main()
{
        struct hostent *he;
        char hostname[40]={0} ;
        char ipaddr[40]={0};

        strcpy(hostname,"www.baidu.com");                                               
        gethostname(hostname,sizeof(hostname));
        he = gethostbyname(hostname);
        printf("%d-handle-gethostbyname\n",he);
        printf("hostname=%s\n",hostname);
        //printf("%s\n",inet_ntoa(*(struct in_addr*)(he->h_addr)));
    char destIP[128];
    char **phe = NULL;
    for( phe=he->h_addr_list ; NULL != *phe ; ++phe)
    {   
        inet_ntop(he->h_addrtype,*phe,destIP,sizeof(destIP));
        printf("addr:%s\n",destIP);

    }   
}




./gh 
529960480-handle-gethostbyname
hostname=justwinit-php-mysql_bj_sjs_10_44_202_177
addr:127.0.0.1

来自：http://blog.csdn.net/zzz_781111/article/details/7372024


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