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Use IPV6_V6ONLY on IPv6 sockets if available. This way we only get IPv6

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packets on the IPv6 socket, and we receive only IPv6 with -6.
This commit is contained in:
Stig Venaas 2002-06-27 13:20:37 +00:00
parent 6d025001da
commit 804490a8b1
1 changed files with 18 additions and 0 deletions
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18
servers/slapd/daemon.c
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@ -743,6 +743,24 @@ static int slap_open_listener(
break;
#ifdef LDAP_PF_INET6
case AF_INET6:
#ifdef IPV6_V6ONLY
/* Try to use IPv6 sockets for IPv6 only */
tmp = 1;
rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
(char *) &tmp, sizeof(tmp) );
if ( rc == AC_SOCKET_ERROR ) {
int err = sock_errno();
#ifdef NEW_LOGGING
LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
"slap_open_listener: setsockopt( %ld, IPV6_V6ONLY ) failed errno %d (%s)\n",
(long)l.sl_sd, err, sock_errstr(err) ));
#else
Debug( LDAP_DEBUG_ANY,
"slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
(long) l.sl_sd, err, sock_errstr(err) );
#endif
}
#endif
addrlen = sizeof(struct sockaddr_in6);
break;
#endif