关于inet_ntoa的问题

#include <winsock2.h>
#include <stdio.h>

#pragma comment( lib, "ws2_32.lib" )

struct sockaddr_in server_addr;
struct sockaddr_in client_addr;

int main(void)
{
long a =0x102030FF;
long b =0x405060FF;

memcpy((char*)&server_addr.sin_addr, (char*)&a, sizeof(server_addr.sin_addr));
memcpy((char*)&client_addr.sin_addr, (char*)&b, sizeof(client_addr.sin_addr));

printf("server:%s\n", inet_ntoa(server_addr.sin_addr));
printf("client:%s\n", inet_ntoa(client_addr.sin_addr));

printf("server:%s\nclient:%s\n",
inet_ntoa(server_addr.sin_addr), inet_ntoa(client_addr.sin_addr));

printf("server:%s\nclient:%s\n",
inet_ntoa(client_addr.sin_addr), inet_ntoa(server_addr.sin_addr));

return0;
}