Fix dirty_shutdown for openssl 1.1

SSL_read() returns -1, even when underlying read() return 0

diff --git a/bufferevent_openssl.c b/bufferevent_openssl.c
index fe057f0acb7c1cd265504310354cfe601de99bad..812b5d061339843c254d84cfa941ed68fbeace37 100644 (file)
--- a/bufferevent_openssl.c
+++ b/bufferevent_openssl.c
@@ -504,7 +504,7 @@ conn_closed(struct bufferevent_openssl *bev_ssl, int when, int errcode, int ret)
                break;
        case SSL_ERROR_SYSCALL:
                /* IO error; possibly a dirty shutdown. */
-               if (ret == 0 && ERR_peek_error() == 0)
+               if ((ret == 0 || ret == -1) && ERR_peek_error() == 0)
                        dirty_shutdown = 1;
                break;
        case SSL_ERROR_SSL: