Line 1304 seems incorrect. Call to ask_filename() doesn't modify fname, and
hence is of no use.

1293 /*
1294  * Print the SSHFP RR.
1295  */
1296 static int
1297 do_print_resource_record(struct passwd *pw, char *fname, char *hname)
1298 {
1299         Key *public;
1300         char *comment = NULL;
1301         struct stat st;
1302 
1303         if (fname == NULL)
1304                 ask_filename(pw, "Enter file in which the key is");
1305         if (stat(fname, &st) < 0) {
1306                 if (errno == ENOENT)
1307                         return 0;
1308                 perror(fname);
1309                 exit(1);
1310         }
1311         public = key_load_public(fname, &comment);
1312         if (public != NULL) {
1313                 export_dns_rr(hname, public, stdout, print_generic);
1314                 key_free(public);
1315                 xfree(comment);
1316                 return 1;
1317         }
1318         if (comment)
1319                 xfree(comment);
1320 
1321         printf("failed to read v2 public key from %s.\n", fname);
1322         exit(1);
1323 }