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/* vi: set sw=4 ts=4: */
/*
* Copyright (C) 2011 Denys Vlasenko.
*
* Licensed under GPLv2, see file LICENSE in this source tree.
*/
#include "common.h"
#include "d6_common.h"
#include <net/if.h>
int FAST_FUNC d6_listen_socket(int port, const char *inf)
{
int fd;
struct sockaddr_in6 addr;
log1("Opening listen socket on *:%d %s", port, inf);
fd = xsocket(PF_INET6, SOCK_DGRAM, IPPROTO_UDP);
setsockopt_reuseaddr(fd);
if (setsockopt_broadcast(fd) == -1)
bb_perror_msg_and_die("SO_BROADCAST");
/* NB: bug 1032 says this doesn't work on ethernet aliases (ethN:M) */
if (setsockopt_bindtodevice(fd, inf))
xfunc_die(); /* warning is already printed */
memset(&addr, 0, sizeof(addr));
addr.sin6_family = AF_INET6;
addr.sin6_port = htons(port);
/* addr.sin6_addr is all-zeros */
xbind(fd, (struct sockaddr *)&addr, sizeof(addr));
return fd;
}
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