int connection_init (connection_t *con, sock_t sock, const char *addr)
{
if (con)
{
memset (con, 0, sizeof (connection_t));
con->sock = sock;
if (sock == SOCK_ERROR)
return -1;
if (addr)
{
char *ip;
if (strncmp (addr, "::ffff:", 7) == 0)
ip = strdup (addr+7);
else
ip = strdup (addr);
if (accept_ip_address (ip))
{
con->ip = ip;
con->id = _next_connection_id();
return 0;
}
free (ip);
}
con->sock = SOCK_ERROR;
}
return -1;
}
static connection_t *_accept_connection(int duration)
{
sock_t sock, serversock;
char *ip;
serversock = wait_for_serversock (duration);
if (serversock == SOCK_ERROR)
return NULL;
/* malloc enough room for a full IP address (including ipv6) */
ip = (char *)malloc(MAX_ADDR_LEN);
sock = sock_accept(serversock, ip, MAX_ADDR_LEN);
if (sock != SOCK_ERROR)
{
connection_t *con = NULL;
/* Make any IPv4 mapped IPv6 address look like a normal IPv4 address */
if (strncmp (ip, "::ffff:", 7) == 0)
memmove (ip, ip+7, strlen (ip+7)+1);
if (accept_ip_address (ip))
con = connection_create (sock, serversock, ip);
if (con)
return con;
sock_close (sock);
}
else
{
if (!sock_recoverable(sock_error()))
{
WARN2("accept() failed with error %d: %s", sock_error(), strerror(sock_error()));
thread_sleep (500000);
}
}
free(ip);
return NULL;
}