added a single line of additional error reporting from libssh2 when failing to retrieve the list of authentication methods
diff --git a/src/transports/ssh.c b/src/transports/ssh.c
index 8f5a716..ffa4a24 100644
--- a/src/transports/ssh.c
+++ b/src/transports/ssh.c
@@ -756,8 +756,10 @@ static int list_auth_methods(int *out, LIBSSH2_SESSION *session, const char *use
list = libssh2_userauth_list(session, username, strlen(username));
/* either error, or the remote accepts NONE auth, which is bizarre, let's punt */
- if (list == NULL && !libssh2_userauth_authenticated(session))
+ if (list == NULL && !libssh2_userauth_authenticated(session)) {
+ ssh_error(session, "Failed to retrieve list of SSH authentication methods");
return -1;
+ }
ptr = list;
while (ptr) {