sosendto(struct socket *so, struct mbuf *m) { Slirp *slirp = so->slirp; int ret; struct sockaddr_in addr; DEBUG_CALL("sosendto"); DEBUG_ARG("so = %p", so); DEBUG_ARG("m = %p", m); addr.sin_family = AF_INET; if ((so->so_faddr.s_addr & slirp->vnetwork_mask.s_addr) == slirp->vnetwork_addr.s_addr) { /* It's an alias */ if (so->so_faddr.s_addr == slirp->vnameserver_addr.s_addr) { if (get_dns_addr(&addr.sin_addr) < 0) addr.sin_addr = loopback_addr; } else { addr.sin_addr = loopback_addr; } } else addr.sin_addr = so->so_faddr; addr.sin_port = so->so_fport; DEBUG_MISC((dfd, " sendto()ing, addr.sin_port=%d, addr.sin_addr.s_addr=%.16s\n", ntohs(addr.sin_port), inet_ntoa(addr.sin_addr))); /* Don't care what port we get */ ret = sendto(so->s, m->m_data, m->m_len, 0, (struct sockaddr *)&addr, sizeof (struct sockaddr)); if (ret < 0) return -1; /* * Kill the socket if there's no reply in 4 minutes, * but only if it's an expirable socket */ if (so->so_expire) so->so_expire = curtime + SO_EXPIRE; so->so_state &= SS_PERSISTENT_MASK; so->so_state |= SS_ISFCONNECTED; /* So that it gets select()ed */ return 0; }