check_dig: Add feature to require or forbid dig DNS flags -E, -X.

Introduced helper functions for flag parsing.

 -E, --require-flags=LIST
    Comma-separated dig flags that must be present (e.g. 'aa,qr')
 -X, --forbid-flags=LIST
    Comma-separated dig flags that must NOT be present

1 files changed, 4 insertions, 0 deletions

diff --git a/plugins/check_dig.d/config.h b/plugins/check_dig.d/config.h
index a570b633..392848e5 100644
--- a/plugins/check_dig.d/config.h
+++ b/plugins/check_dig.d/config.h
@@ -19,6 +19,8 @@ typedef struct {
 
         double warning_interval;
         double critical_interval;
+        char *require_flags;
+        char *forbid_flags;
 } check_dig_config;
 
 check_dig_config check_dig_config_init() {
@@ -34,6 +36,8 @@ check_dig_config check_dig_config_init() {
 
                 .warning_interval = UNDEFINED,
                 .critical_interval = UNDEFINED,
+                .require_flags = NULL,
+                .forbid_flags = NULL,
 
         };
         return tmp;