if (strlen(instanceName) == (strlen(samAccountName) - 1)
&& strncasecmp(instanceName, samAccountName, strlen(samAccountName) - 1) == 0) {
goto success;
- } else if (strcasecmp(instanceName, dnsHostName) == 0) {
+ } else if (dnsHostName != NULL && strcasecmp(instanceName, dnsHostName) == 0) {
goto success;
} else if (is_dc) {
const char *guid_str;