1 #include <stdio.h> 2 #include <string.h> 3 #include "firedns.h" 4 main(int argc,char ** argv)5int main(int argc, char **argv) { 6 char *result; 7 8 if (argc != 2) { 9 fprintf(stderr,"usage: %s <hostname>\n",argv[0]); 10 return 2; 11 } 12 13 result = firedns_resolvemx(argv[1]); 14 15 if (result != NULL) { 16 printf("%s\n",result); 17 return 0; 18 } 19 20 return 1; 21 } 22