1 files changed, 9 insertions, 4 deletions

diff --git a/openbsd-compat/port-tun.c b/openbsd-compat/port-tun.c
index 0d756f74f..7b58ea678 100644
--- a/openbsd-compat/port-tun.c
+++ b/openbsd-compat/port-tun.c
@@ -32,8 +32,9 @@
 #include "openbsd-compat/sys-queue.h"
 #include "log.h"
 #include "misc.h"
-#include "buffer.h"
+#include "sshbuf.h"
 #include "channels.h"
+#include "ssherr.h"
 
 /*
  * This is the portable version of the SSH tunnel forwarding, it
@@ -210,6 +211,7 @@ sys_tun_infilter(struct Channel *c, char *buf, int len)
 #endif
         u_int32_t *af;
         char *ptr = buf;
+        int r;
 
 #if defined(SSH_TUN_PREPEND_AF)
         if (len <= 0 || len > (int)(sizeof(rbuf) - sizeof(*af)))
@@ -242,17 +244,20 @@ sys_tun_infilter(struct Channel *c, char *buf, int len)
                 *af = htonl(OPENBSD_AF_INET);
 #endif
 
-        buffer_put_string(&c->input, ptr, len);
+        if ((r = sshbuf_put_string(&c->input, ptr, len)) != 0)
+                fatal("%s: buffer error: %s", __func__, ssh_err(r));
         return (0);
 }
 
 u_char *
-sys_tun_outfilter(struct Channel *c, u_char **data, u_int *dlen)
+sys_tun_outfilter(struct Channel *c, u_char **data, size_t *dlen)
 {
         u_char *buf;
         u_int32_t *af;
+        int r;
 
-        *data = buffer_get_string(&c->output, dlen);
+        if ((r = sshbuf_get_string(&c->output, data, dlen)) != 0)
+                fatal("%s: buffer error: %s", __func__, ssh_err(r));
         if (*dlen < sizeof(*af))
                 return (NULL);
         buf = *data;