add get_vsock_socket_family

Author: outscale-rjt

src/ctx.cpp

@@ -25,6 +25,11 @@
 #include <vmci_sockets.h>
 #endif
 
+#ifdef ZMQ_HAVE_VSOCK
+#include <sys/socket.h>
+#include "linux/vm_sockets.h"
+#endif
+
 #ifdef ZMQ_USE_NSS
 #include <nss.h>
 #endif
@@ -867,6 +872,15 @@ int zmq::ctx_t::get_vmci_socket_family ()
 
 #endif
 
+#ifdef ZMQ_HAVE_VSOCK
+
+int zmq::ctx_t::get_vsock_socket_family ()
+{
+    return AF_VSOCK;
+}
+
+#endif
+
 //  The last used socket ID, or 0 if no socket was used so far. Note that this
 //  is a global variable. Thus, even sockets created in different contexts have
 //  unique IDs.

src/ctx.hpp

@@ -122,6 +122,10 @@ class ctx_t ZMQ_FINAL : public thread_ctx_t
     // Return family for the VMCI socket or -1 if it's not available.
     int get_vmci_socket_family ();
 #endif
+#ifdef ZMQ_HAVE_VSOCK
+    // Return family for the AF_VSOCK socket or -1 if it's not available.
+    int get_vsock_socket_family ();
+#endif
 
     enum
     {

src/vsock_address.cpp

@@ -99,7 +99,7 @@ int zmq::vsock_address_t::resolve (const char *path_)
 
 int zmq::vsock_address_t::to_string (std::string &addr_) const
 {
-    if (address.svm_family != AF_VSOCK) {
+    if (address.svm_family != parent->get_vsock_socket_family ()) {
         addr_.clear ();
         return -1;
     }
@@ -136,4 +136,10 @@ socklen_t zmq::vsock_address_t::addrlen () const
     return static_cast<socklen_t> (sizeof address);
 }
 
+sa_family_t zmq::vsock_address_t::family () const
+{
+    return AF_VSOCK;
+}
+
+
 #endif