api: add macro that zeros out api reply buffer
Add macros REPLY_MACRO2_ZERO, REPLY_MACRO3_ZERO that zeros the buffer
before the values are set. This way if say, a u8[64] field is
only filled with 10 octets, the previous buffers trailing
contents are not sent.
Type: feature
@@ -59,6 +59,22 @@ do { \
vl_api_send_msg (rp, (u8 *)rmp); \
} while(0);
+#define REPLY_MACRO2_ZERO(t, body) \
+do { \
+ vl_api_registration_t *rp; \
+ rv = vl_msg_api_pd_handler (mp, rv); \
+ rp = vl_api_client_index_to_registration (mp->client_index); \
+ if (rp == 0) \
+ return; \
+ \
+ rmp = vl_msg_api_alloc_zero (sizeof (*rmp)); \
+ rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
+ rmp->context = mp->context; \
+ rmp->retval = ntohl(rv); \
+ do {body;} while (0); \
+ vl_api_send_msg (rp, (u8 *)rmp); \
+} while(0);
+
#define REPLY_MACRO_DETAILS2(t, body) \
do { \
vl_api_registration_t *rp; \
@@ -90,6 +106,22 @@ do { \
vl_api_send_msg (rp, (u8 *)rmp); \
} while(0);
+#define REPLY_MACRO3_ZERO(t, n, body) \
+do { \
+ vl_api_registration_t *rp; \
+ rv = vl_msg_api_pd_handler (mp, rv); \
+ rp = vl_api_client_index_to_registration (mp->client_index); \
+ if (rp == 0) \
+ return; \
+ \
+ rmp = vl_msg_api_alloc_zero (sizeof (*rmp) + n); \
+ rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
+ rmp->context = mp->context; \
+ rmp->retval = ntohl(rv); \
+ do {body;} while (0); \
+ vl_api_send_msg (rp, (u8 *)rmp); \
+} while(0);
+
#define REPLY_MACRO4(t, n, body) \
do { \
vl_api_registration_t *rp; \
