Update docs for Ed25519 and ChaCha20-Poly1305.

[PuTTY.git] / putty.h

diff --git a/putty.h b/putty.h
index cfdc81544a4efba4c353a3ce2f24a1ba185e7ee1..c854d9449ebd194e93054564dd26c50c2944afc5 100644 (file)
--- a/putty.h
+++ b/putty.h
@@ -445,6 +445,9 @@ struct backend_tag {
      */
     void (*unthrottle) (void *handle, int);
     int (*cfg_info) (void *handle);
+    /* Only implemented in the SSH protocol: check whether a
+     * connection-sharing upstream exists for a given configuration. */
+    int (*test_for_upstream)(const char *host, int port, Conf *conf);
     const char *name;
     int protocol;
     int default_port;