From ec051665451b525d68b1cb3eb9dce951e7271e8b Mon Sep 17 00:00:00 2001
From: Bill Torpey <wallstprog@gmail.com>
Date: Fri, 29 Dec 2017 14:36:59 -0500
Subject: [PATCH] prevent duplicate connections from PUB sockets also (see
 https://github.com/zeromq/libzmq/issues/788)

---
 src/socket_base.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/socket_base.cpp b/src/socket_base.cpp
index f18e6e1e..a0be9eb8 100644
--- a/src/socket_base.cpp
+++ b/src/socket_base.cpp
@@ -823,7 +823,7 @@ int zmq::socket_base_t::connect (const char *addr_)
         return 0;
     }
     bool is_single_connect = (options.type == ZMQ_DEALER ||
-                              options.type == ZMQ_SUB ||
+                              options.type == ZMQ_SUB    || options.type == ZMQ_PUB ||
                               options.type == ZMQ_REQ);
     if (unlikely (is_single_connect)) {
         const endpoints_t::iterator it = endpoints.find (addr_);