void do_queries () {
iplist tIP;
lwres_context_t *ctx = NULL;
lwres_grbnresponse_t *response = NULL;
int n, i;
pthread_mutex_lock(mutexp);
tIP = IPs;
if (IPs != NULL) {
IPs = tIP->next;
}
pthread_mutex_unlock(mutexp);
while (tIP != NULL) {
//fprintf (stderr, "making query %s\n", tIP->IP); fflush(stderr);
if (lwres_context_create(&ctx, NULL, NULL, NULL, 0) != 0) {
fprintf (stderr, "Couldn't create context\n");
return;
} else {
lwres_conf_parse(ctx, lwres_resolv_conf);
//pthread_mutex_lock(mutexoutput);
n = lwres_getrdatabyname(ctx, tIP->IP, ns_c_in, ns_t_a, 0, &response);
//pthread_mutex_unlock(mutexoutput);
if (n == LWRES_R_SUCCESS) {
printf ("%s,%d.%d.%d.%d,%d\n", tIP->IP,
response->rdatas[0][0], response->rdatas[0][1],
response->rdatas[0][2], response->rdatas[0][3],
response->ttl);
//fprintf (stderr, "freeing response\n"); fflush(stderr);
lwres_grbnresponse_free(ctx, &response);
} else {
//fprintf (stderr, "Nothing found\n");
printf ("%s, %s, %d\n", tIP->IP, tIP->IP, defttl);
}
//fprintf (stderr, "freeing context\n"); fflush(stderr);
lwres_context_destroy(&ctx);
//fprintf (stderr, "done freeing\n"); fflush(stderr);
}
pthread_mutex_lock(mutexp);
tIP = IPs;
if (IPs != NULL) {
IPs = tIP->next;
}
pthread_mutex_unlock(mutexp);
}
}
/*% Returns a set of resource records associated with a hostname, class, and type. hostname is a pointer a to null-terminated string. */
int
lwres_getrrsetbyname(const char *hostname, unsigned int rdclass,
unsigned int rdtype, unsigned int flags,
struct rrsetinfo **res)
{
lwres_context_t *lwrctx = NULL;
lwres_result_t lwresult;
lwres_grbnresponse_t *response = NULL;
struct rrsetinfo *rrset = NULL;
unsigned int i;
unsigned int lwflags;
unsigned int result;
if (rdclass > 0xffff || rdtype > 0xffff) {
result = ERRSET_INVAL;
goto fail;
}
/*
* Don't allow queries of class or type ANY
*/
if (rdclass == 0xff || rdtype == 0xff) {
result = ERRSET_INVAL;
goto fail;
}
lwresult = lwres_context_create(&lwrctx, NULL, NULL, NULL, 0);
if (lwresult != LWRES_R_SUCCESS) {
result = lwresult_to_result(lwresult);
goto fail;
}
(void) lwres_conf_parse(lwrctx, lwres_resolv_conf);
/*
* If any input flags were defined, lwflags would be set here
* based on them
*/
UNUSED(flags);
lwflags = 0;
lwresult = lwres_getrdatabyname(lwrctx, hostname,
(lwres_uint16_t)rdclass,
(lwres_uint16_t)rdtype,
lwflags, &response);
if (lwresult != LWRES_R_SUCCESS) {
result = lwresult_to_result(lwresult);
goto fail;
}
rrset = sane_malloc(sizeof(struct rrsetinfo));
if (rrset == NULL) {
result = ERRSET_NOMEMORY;
goto fail;
}
rrset->rri_name = NULL;
rrset->rri_rdclass = response->rdclass;
rrset->rri_rdtype = response->rdtype;
rrset->rri_ttl = response->ttl;
rrset->rri_flags = 0;
rrset->rri_nrdatas = 0;
rrset->rri_rdatas = NULL;
rrset->rri_nsigs = 0;
rrset->rri_sigs = NULL;
rrset->rri_name = sane_malloc(response->realnamelen + 1);
if (rrset->rri_name == NULL) {
result = ERRSET_NOMEMORY;
goto fail;
}
strncpy(rrset->rri_name, response->realname, response->realnamelen);
rrset->rri_name[response->realnamelen] = 0;
if ((response->flags & LWRDATA_VALIDATED) != 0)
rrset->rri_flags |= RRSET_VALIDATED;
rrset->rri_nrdatas = response->nrdatas;
rrset->rri_rdatas = sane_calloc(rrset->rri_nrdatas,
sizeof(struct rdatainfo));
if (rrset->rri_rdatas == NULL) {
result = ERRSET_NOMEMORY;
goto fail;
}
for (i = 0; i < rrset->rri_nrdatas; i++) {
rrset->rri_rdatas[i].rdi_length = response->rdatalen[i];
rrset->rri_rdatas[i].rdi_data =
sane_malloc(rrset->rri_rdatas[i].rdi_length);
if (rrset->rri_rdatas[i].rdi_data == NULL) {
result = ERRSET_NOMEMORY;
goto fail;
}
memcpy(rrset->rri_rdatas[i].rdi_data, response->rdatas[i],
rrset->rri_rdatas[i].rdi_length);
}
rrset->rri_nsigs = response->nsigs;
rrset->rri_sigs = sane_calloc(rrset->rri_nsigs,
sizeof(struct rdatainfo));
if (rrset->rri_sigs == NULL) {
result = ERRSET_NOMEMORY;
goto fail;
}
for (i = 0; i < rrset->rri_nsigs; i++) {
rrset->rri_sigs[i].rdi_length = response->siglen[i];
rrset->rri_sigs[i].rdi_data =
sane_malloc(rrset->rri_sigs[i].rdi_length);
if (rrset->rri_sigs[i].rdi_data == NULL) {
result = ERRSET_NOMEMORY;
goto fail;
}
memcpy(rrset->rri_sigs[i].rdi_data, response->sigs[i],
rrset->rri_sigs[i].rdi_length);
}
lwres_grbnresponse_free(lwrctx, &response);
lwres_conf_clear(lwrctx);
lwres_context_destroy(&lwrctx);
*res = rrset;
return (ERRSET_SUCCESS);
fail:
if (rrset != NULL)
lwres_freerrset(rrset);
if (response != NULL)
lwres_grbnresponse_free(lwrctx, &response);
if (lwrctx != NULL) {
lwres_conf_clear(lwrctx);
lwres_context_destroy(&lwrctx);
}
return (result);
}
