irmd: Use buffer_t for piggybacked data

Instead of passing a const void * and len, it now passes buffer_t to
operations that send piggybacked data (flow_req_arr and flow_reply)
and a buffer_t * for operations that send and receive piggybacked data
(flow_alloc and flow_accept).

Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/ouroboros/utils.h b/include/ouroboros/utils.h
index bd174149..f5f8610d 100644
--- a/include/ouroboros/utils.h
+++ b/include/ouroboros/utils.h
@@ -25,16 +25,20 @@
 
 #include <stdint.h>
 #include <unistd.h>
+#include <string.h>
 
 #define MIN(a,b) (((a) < (b)) ? (a) : (b))
 #define MAX(a,b) (((a) > (b)) ? (a) : (b))
 #define ABS(a)   ((a) > 0 ? (a) : -(a))
+#define clrbuf(buf) do { memset(&(buf), 0, sizeof(buf)); } while (0);
+#define freebuf(buf) do { free((buf).data); clrbuf(buf); } while (0);
 
 typedef struct {
         uint8_t * data;
         size_t    len;
 } buffer_t;
 
+
 /*
  * Returns the number of characters a uint would
  * need when represented as a string