static void dynmasq_refresh(void) {
server_rec *s;
pr_log_debug(DEBUG2, MOD_DYNMASQ_VERSION
": resolving all MasqueradeAddress directives (could take a little while)");
for (s = (server_rec *) server_list->xas_list; s; s = s->next) {
config_rec *c;
c = find_config(s->conf, CONF_PARAM, "MasqueradeAddress", FALSE);
if (c != NULL) {
const char *masq_addr;
pr_netaddr_t *na;
masq_addr = c->argv[1];
pr_netaddr_clear_ipcache(masq_addr);
na = pr_netaddr_get_addr(s->pool, masq_addr, NULL);
if (na != NULL) {
/* Compare the obtained netaddr with the one already present.
* Only update the "live" netaddr if they differ.
*/
pr_log_debug(DEBUG2, MOD_DYNMASQ_VERSION
": resolved MasqueradeAddress '%s' to IP address %s", masq_addr,
pr_netaddr_get_ipstr(na));
if (pr_netaddr_cmp(c->argv[0], na) != 0) {
pr_log_pri(PR_LOG_DEBUG, MOD_DYNMASQ_VERSION
": MasqueradeAddress '%s' updated for new address %s (was %s)",
masq_addr, pr_netaddr_get_ipstr(na),
pr_netaddr_get_ipstr(c->argv[0]));
/* Overwrite the old netaddr pointer. Note that this constitutes
* a minor memory leak, as there currently isn't a way to free
* the memory used by a netaddr object. Hrm.
*/
c->argv[0] = na;
} else {
pr_log_debug(DEBUG2, MOD_DYNMASQ_VERSION
": MasqueradeAddress '%s' has not changed addresses", masq_addr);
}
} else {
pr_log_pri(PR_LOG_INFO, MOD_DYNMASQ_VERSION
": unable to resolve '%s', keeping previous address", masq_addr);
}
}
}
return;
}
END_TEST
#ifdef PR_USE_IPV6
START_TEST (netaddr_get_dnsstr_ipv6_test) {
pr_netaddr_t *addr;
const char *ip, *res;
ip = "::1";
res = pr_netaddr_get_dnsstr(NULL);
fail_unless(res == NULL, "Failed to handle null argument");
fail_unless(errno == EINVAL, "Failed to set errno to EINVAL");
addr = pr_netaddr_get_addr(p, ip, NULL);
fail_unless(addr != NULL, "Failed to get addr for '%s': %s", ip,
strerror(errno));
pr_netaddr_set_reverse_dns(FALSE);
res = pr_netaddr_get_dnsstr(addr);
fail_unless(res != NULL, "Failed to get DNS str for addr: %s",
strerror(errno));
fail_unless(strcmp(res, ip) == 0, "Expected '%s', got '%s'", ip, res);
pr_netaddr_set_reverse_dns(TRUE);
/* Even though we should expect a DNS name, not an IP address, the
* previous call to pr_netaddr_get_dnsstr() cached the IP address.
*/
res = pr_netaddr_get_dnsstr(addr);
fail_unless(res != NULL, "Failed to get DNS str for addr: %s",
strerror(errno));
fail_unless(strcmp(res, ip) == 0, "Expected '%s', got '%s'", ip, res);
pr_netaddr_clear(addr);
/* Clearing the address doesn't work, since that removes even the address
* info, in addition to the cached strings.
*/
res = pr_netaddr_get_dnsstr(addr);
fail_unless(res != NULL, "Failed to get DNS str for addr: %s",
strerror(errno));
fail_unless(strcmp(res, "") == 0, "Expected '%s', got '%s'", "", res);
/* We need to clear the netaddr internal cache as well. */
pr_netaddr_clear_ipcache(ip);
addr = pr_netaddr_get_addr(p, ip, NULL);
fail_unless(addr != NULL, "Failed to get addr for '%s': %s", ip,
strerror(errno));
mark_point();
fail_unless(addr->na_have_dnsstr == 0, "addr already has cached DNS str");
mark_point();
res = pr_netaddr_get_dnsstr(addr);
fail_unless(res != NULL, "Failed to get DNS str for addr: %s",
strerror(errno));
mark_point();
/* Depending on the contents of /etc/hosts, resolving ::1 could
* return either "localhost" or "localhost.localdomain". Perhaps even
* other variations, although these should be the most common.
*/
fail_unless(strcmp(res, "localhost") == 0 ||
strcmp(res, "localhost.localdomain") == 0 ||
strcmp(res, "localhost6") == 0 ||
strcmp(res, "localhost6.localdomain") == 0 ||
strcmp(res, "ip6-localhost") == 0 ||
strcmp(res, "ip6-loopback") == 0 ||
strcmp(res, ip) == 0,
"Expected '%s', got '%s'", "localhost, localhost.localdomain et al", res);
}
