Add functions to enable/disable debug logging (#280)

* Add "bip_debug_disable()"

* Add "bvlc_debug_disable()"

* Add setters for BIP_DL_Debug (BBMD registration debug logging)

src/bacnet/basic/bbmd/h_bbmd.c

@@ -102,6 +102,14 @@ void bvlc_debug_enable(void)
     BVLC_Debug = true;
 }
 
+/**
+ * @brief Disable debug printing of BACnet/IPv4 BBMD
+ */
+void bvlc_debug_disable(void)
+{
+    BVLC_Debug = true;
+}
+
 /**
  * @brief Print the IPv4 address with debug info for this module
  * @param str - debug info string

src/bacnet/basic/bbmd/h_bbmd.h

@@ -85,6 +85,9 @@ void bvlc_init(void);
 BACNET_STACK_EXPORT
 void bvlc_debug_enable(void);
 
+BACNET_STACK_EXPORT
+void bvlc_debug_disable(void);
+
 /* send a Read BDT request */
 BACNET_STACK_EXPORT
 int bvlc_bbmd_read_bdt(BACNET_IP_ADDRESS *bbmd_addr);

src/bacnet/datalink/bip.h

@@ -113,6 +113,9 @@ extern "C" {
     BACNET_STACK_EXPORT
     void bip_debug_enable(void);
 
+    BACNET_STACK_EXPORT
+    void bip_debug_disable(void);
+
     BACNET_STACK_EXPORT
     int bip_get_socket(void);
 

src/bacnet/datalink/dlenv.c

@@ -57,6 +57,24 @@ static BACNET_IP_BROADCAST_DISTRIBUTION_TABLE_ENTRY BBMD_Table_Entry;
 /* enable debugging */
 static bool BIP_DL_Debug = false;
 
+/* Debug toggle */
+
+/**
+ * @brief Enabled debug printing of BACnet/IPv4 DL
+ */
+void bip_dl_debug_enable(void)
+{
+    BIP_DL_Debug = true;
+}
+
+/**
+ * @brief Disable debug printing of BACnet/IPv4 DL
+ */
+void bip_dl_debug_disable(void)
+{
+    BIP_DL_Debug = false;
+}
+
 /* Simple setters for BBMD registration variables. */
 
 /**
@@ -473,7 +491,7 @@ void dlenv_init(void)
     if (pEnv) {
         bip_debug_enable();
         bvlc_debug_enable();
-        BIP_DL_Debug = true;
+        bip_dl_debug_enable();
     }
     pEnv = getenv("BACNET_IP_PORT");
     if (pEnv) {

src/bacnet/datalink/dlenv.h

@@ -39,6 +39,14 @@ extern "C" {
     void dlenv_init(
         void);
 
+    BACNET_STACK_EXPORT
+    void bip_dl_debug_enable(
+        void);
+
+    BACNET_STACK_EXPORT
+    void bip_dl_debug_disable(
+        void);
+
     BACNET_STACK_EXPORT
     int dlenv_register_as_foreign_device(
         void);