1 2#include <netinet/in.h> 3#include <resolv.h> 4#include <stdio.h> 5 6int main(int argc, char *argv[]) 7{ 8 printf("PRE _res.nscount = %d\n", _res.nscount); 9 fflush(stdout); 10 res_init(); 11 printf("POST _res.nscount = %d\n", ( int ) _res.nscount > 0 ); 12 fflush(stdout); 13 return 0; 14} 15