sosendoob(struct socket *so) { struct sbuf *sb = &so->so_rcv; char buff[2048]; /* XXX Shouldn't be sending more oob data than this */ int n, len; DEBUG_CALL("sosendoob"); DEBUG_ARG("so = %p", so); DEBUG_ARG("sb->sb_cc = %d", sb->sb_cc); if (so->so_urgc > 2048) so->so_urgc = 2048; /* XXXX */ if (sb->sb_rptr < sb->sb_wptr) { /* We can send it directly */ n = slirp_send(so, sb->sb_rptr, so->so_urgc, (MSG_OOB)); /* |MSG_DONTWAIT)); */ so->so_urgc -= n; DEBUG_MISC((dfd, " --- sent %d bytes urgent data, %d urgent bytes left\n", n, so->so_urgc)); } else { /* * Since there's no sendv or sendtov like writev, * we must copy all data to a linear buffer then * send it all */ len = (sb->sb_data + sb->sb_datalen) - sb->sb_rptr; if (len > so->so_urgc) len = so->so_urgc; memcpy(buff, sb->sb_rptr, len); so->so_urgc -= len; if (so->so_urgc) { n = sb->sb_wptr - sb->sb_data; if (n > so->so_urgc) n = so->so_urgc; memcpy((buff + len), sb->sb_data, n); so->so_urgc -= n; len += n; } n = slirp_send(so, buff, len, (MSG_OOB)); /* |MSG_DONTWAIT)); */ #ifdef DEBUG if (n != len) DEBUG_ERROR((dfd, "Didn't send all data urgently XXXXX\n")); #endif DEBUG_MISC((dfd, " ---2 sent %d bytes urgent data, %d urgent bytes left\n", n, so->so_urgc)); } sb->sb_cc -= n; sb->sb_rptr += n; if (sb->sb_rptr >= (sb->sb_data + sb->sb_datalen)) sb->sb_rptr -= sb->sb_datalen; return n; }