freeswitch/libs/ldns/examples/ldns-resolver.c

48 lines
1.0 KiB
C

/*
* ldns-resolver tries to create a resolver structure from /dev/urandom
* this is only useful to test the library for robusteness with input data
*
* (c) NLnet Labs 2006 - 2008
* See the file LICENSE for the license
*/
#include "config.h"
#include "errno.h"
#include <ldns/ldns.h>
int
main(int argc, char **argv) {
ldns_resolver *r;
int line = 1;
FILE *rand;
ldns_status s;
if (argc != 2 || strncmp(argv[1], "-h", 3) == 0) {
printf("Usage: ldns-resolver <file>\n");
printf("Tries to create a stub resolver structure from the given file.\n");
exit(EXIT_FAILURE);
}
if (!(rand = fopen(argv[1], "r"))) {
printf("Error opening %s: %s\n", argv[1], strerror(errno));
exit(EXIT_FAILURE);
}
printf("Trying to read from %s\n", argv[1]);
s = ldns_resolver_new_frm_fp_l(&r, rand, &line);
if (s != LDNS_STATUS_OK) {
printf("Failed: %s at line %d\n", ldns_get_errorstr_by_id(s), line);
exit(EXIT_FAILURE);
} else {
printf("Succes\n");
ldns_resolver_print(stdout, r);
ldns_resolver_deep_free(r);
}
fclose(rand);
return EXIT_SUCCESS;
}