inet_pton inet_ntop 注意点使用

 #include //bzero memset
#include //struct in_addr
#include //AF_INET
#include
int
main(int argc, char **argv)
{

 char str[]="172.16.10.196";//
 char str1[16];
 struct in_addr myin;
 int ret = 1;

 unsigned long lip = 0xac100ac4;
 
 
 ret = inet_pton(AF_INET,str,&myin);                      //转换出来的myin是网络序的
 printf("%2X/n",myin.s_addr);
 myin.s_addr = ntohl(myin.s_addr);
 printf("%2X/n",myin.s_addr);
 
 
 printf("%2X/n",lip);
 lip = htonl(lip);                                                           //要先将lip转换成网络序的
 printf("%2X/n",lip);
 ret = inet_ntop(AF_INET,&lip,str1,__SOCK_SIZE__);
 printf("%s/n",str1);
 
 
 exit(0);
}

inet_pton的输出是网络序的

inet_ntop的输入是网络序的