1 2 #include <netinet/in.h> 3 #include <resolv.h> 4 #include <stdio.h> 5 main(int argc,char * argv[])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