pkt: Add pkt_reset()

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 7 insertions, 0 deletions

diff --git a/pkt.h b/pkt.h
index b043685..e829b8c 100644
--- a/pkt.h
+++ b/pkt.h
@@ -59,6 +59,13 @@ static inline void pkt_free(struct pkt *p)
 	free(p);
 }
 
+static inline void pkt_reset(struct pkt *p)
+{
+	assert(pkt_invariant(p));
+
+	p->tail = p->data;
+}
+
 static inline size_t pkt_len(struct pkt *p)
 {
 	assert(pkt_invariant(p));