diff options
| -rw-r--r-- | plugins/check_dns.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/plugins/check_dns.c b/plugins/check_dns.c index c30adac7..b0ab23ca 100644 --- a/plugins/check_dns.c +++ b/plugins/check_dns.c @@ -150,6 +150,10 @@ main (int argc, char **argv) /* scan stderr */ while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr)) { + + if (verbose) + printf ("%s", input_buffer); + if (error_scan (input_buffer) != STATE_OK) { result = max_state (result, error_scan (input_buffer)); output = strdup (1 + index (input_buffer, ':')); @@ -163,7 +167,7 @@ main (int argc, char **argv) /* close stdout */ if (spclose (child_process)) { result = max_state (result, STATE_WARNING); - if (!strcmp (output, "")) + if (output == NULL || !strcmp (output, "")) output = strdup (_("nslookup returned error status")); } @@ -240,6 +244,14 @@ error_scan (char *input_buffer) strstr (input_buffer, ": REFUSED"))) die (STATE_CRITICAL, _("Connection to DNS %s was refused\n"), dns_server); + /* Query refused (usually by an ACL in the namserver) */ + else if (strstr (input_buffer, "Query refused")) + die (STATE_CRITICAL, _("Query was refused by DNS server at %s\n"), dns_server); + + /* No information (e.g. nameserver IP has two PTR records) */ + else if (strstr (input_buffer, "No information")) + die (STATE_CRITICAL, _("No information returned by DNS server at %s\n"), dns_server); + /* Host or domain name does not exist */ else if (strstr (input_buffer, "Non-existent") || strstr (input_buffer, "** server can't find") || |