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Add IPv6 support to tcp_listener

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Signed-off-by: Steven McCoy <steven.mccoy@miru.hk>
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
This commit is contained in:
Steven McCoy
2011-08-15 08:56:00 +02:00
committed by Martin Sustrik
parent 3c3c0bfd1f
commit 57440b86e2
4 changed files with 43 additions and 17 deletions
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19
src/tcp_listener.cpp
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@@ -130,6 +130,20 @@ int zmq::tcp_listener_t::set_address (const char *addr_)
// Create a listening socket.
s = ::socket (addr.ss_family, SOCK_STREAM, IPPROTO_TCP);
#ifdef ZMQ_HAVE_WINDOWS
if (s == INVALID_SOCKET)
wsa_error_to_errno ();
#endif
// IPv6 address family not supported, try automatic downgrade to IPv4.
if (addr.ss_family == AF_INET6 && errno == EAFNOSUPPORT &&
!options.ipv4only) {
rc = resolve_ip_interface (&addr, &addr_len, addr_, true);
if (rc != 0)
return rc;
s = ::socket (addr.ss_family, SOCK_STREAM, IPPROTO_TCP);
}
#ifdef ZMQ_HAVE_WINDOWS
if (s == INVALID_SOCKET) {
wsa_error_to_errno ();
@@ -140,6 +154,11 @@ int zmq::tcp_listener_t::set_address (const char *addr_)
return -1;
#endif
// On some systems, IPv4 mapping in IPv6 sockets is disabled by default.
// Switch it on in such cases.
if (addr.ss_family == AF_INET6)
enable_ipv4_mapping (s);
// Allow reusing of the address.
int flag = 1;
#ifdef ZMQ_HAVE_WINDOWS