diff --git a/include/patty/kiss.h b/include/patty/kiss.h
index da9bb3a..5cc2723 100644
--- a/include/patty/kiss.h
+++ b/include/patty/kiss.h
@@ -35,8 +35,12 @@ int patty_kiss_tnc_fd_unix(patty_kiss_tnc *tnc);
 
 void patty_kiss_tnc_close(patty_kiss_tnc *tnc);
 
+void patty_kiss_tnc_drop(patty_kiss_tnc *tnc);
+
 int patty_kiss_tnc_dropped(patty_kiss_tnc *tnc);
 
+void patty_kiss_tnc_flush(patty_kiss_tnc *tnc, size_t len);
+
 ssize_t patty_kiss_tnc_buffer(patty_kiss_tnc *tnc);
 
 ssize_t patty_kiss_tnc_decode(patty_kiss_tnc *tnc, void *frame, size_t *len, int *port);
diff --git a/src/kiss.c b/src/kiss.c
index bafaf93..7238801 100644
--- a/src/kiss.c
+++ b/src/kiss.c
@@ -198,7 +198,7 @@ error_io:
     return -1;
 }
 
-static void tnc_drop(patty_kiss_tnc *tnc) {
+void patty_kiss_tnc_drop(patty_kiss_tnc *tnc) {
     memset(tnc->buf,   '\0', tnc->bufsz);
     memset(tnc->frame, '\0', tnc->bufsz);
 
@@ -210,7 +210,7 @@ int patty_kiss_tnc_dropped(patty_kiss_tnc *tnc) {
     return tnc->dropped;
 }
 
-static void tnc_flush(patty_kiss_tnc *tnc, size_t len) {
+void patty_kiss_tnc_flush(patty_kiss_tnc *tnc, size_t len) {
     /*
      * Move everything from the buffer not processed up to this point, to the
      * beginning of the buffer.
@@ -253,14 +253,14 @@ ssize_t patty_kiss_tnc_recv(patty_kiss_tnc *tnc, void **frame, int *port) {
          * frame.
          */
         if (decoded == 0 && buffered == 0) {
-            tnc_drop(tnc);
+            patty_kiss_tnc_drop(tnc);
         }
     } while (decoded == 0);
 
     /*
      * Flush the buffer up to the point of the next frame start.
      */
-    tnc_flush(tnc, decoded);
+    patty_kiss_tnc_flush(tnc, decoded);
 
     *frame = tnc->frame;