check_dig: add -E/--require-flags and -X/--forbid-flags (#2165)HEADmaster

* 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, 9 insertions, 1 deletions

diff --git a/plugins/check_dig.d/config.h b/plugins/check_dig.d/config.h
index a570b633..dd1f58b5 100644
--- a/plugins/check_dig.d/config.h
+++ b/plugins/check_dig.d/config.h
@@ -8,6 +8,11 @@
 #define DEFAULT_TRIES 2
 
 typedef struct {
+        char **items;
+        size_t count;
+} flag_list;
+
+typedef struct {
         char *query_address;
         char *record_type;
         char *expected_address;
@@ -19,6 +24,8 @@ typedef struct {
 
         double warning_interval;
         double critical_interval;
+        flag_list require_flags;
+        flag_list forbid_flags;
 } check_dig_config;
 
 check_dig_config check_dig_config_init() {
@@ -34,7 +41,8 @@ check_dig_config check_dig_config_init() {
 
                 .warning_interval = UNDEFINED,
                 .critical_interval = UNDEFINED,
-
+                .require_flags = {.count = 0, .items = NULL},
+                .forbid_flags = {.count = 0, .items = NULL},
         };
         return tmp;
 }