1 #include <arpa/inet.h> 2 #include <stdio.h> 3 4 char *inet_ntoa(struct in_addr in) 5 { 6 static char buf[16]; 7 unsigned char *a = (void *)∈ 8 snprintf(buf, sizeof buf, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]); 9 return buf; 10 } 11