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| author |  ghciv6 <ghciv6@localhost>
| 2020-05-20 23:02:42 +0200 |
|---|---|---|
| committer | ghciv6 <ghciv6@localhost>
| 2020-05-20 23:02:42 +0200 |
| commit | 905b09c38b6b8b08f0fe4a43b9b118366817bf0f (patch) | |
| tree | 7f700a28e2f8c122e9052bc06ffaa9d4e90bd925 | |
| parent | 00948e95f43953359d3a9de6a9dc664723ad7374 (diff) | |
| download | monitoring-plugins-905b09c38b6b8b08f0fe4a43b9b118366817bf0f.tar.gz | |
detect unreachable dns service in nslookup output (from bind-utils-9.8.2)
prevent core if error_scan detects an error in a line without ':'
| -rw-r--r-- | plugins/check_dns.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/plugins/check_dns.c b/plugins/check_dns.c index d4d0b885..b90f50e6 100644 --- a/plugins/check_dns.c +++ b/plugins/check_dns.c @@ -202,7 +202,10 @@ main (int argc, char **argv) if (error_scan (chld_err.line[i]) != STATE_OK) { result = max_state (result, error_scan (chld_err.line[i])); msg = strchr(input_buffer, ':'); - if(msg) msg++; + if(msg) + msg++; + else + msg = input_buffer; } } @@ -348,6 +351,8 @@ error_scan (char *input_buffer) /* DNS server is not running... */ else if (strstr (input_buffer, "No response from server")) die (STATE_CRITICAL, _("No response from DNS %s\n"), dns_server); + else if (strstr (input_buffer, "no servers could be reached")) + die (STATE_CRITICAL, _("No response from DNS %s\n"), dns_server); /* Host name is valid, but server doesn't have records... */ else if (strstr (input_buffer, "No records")) |