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Eliminate a goto.

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Fix some line breaks.
This commit is contained in:
hsu 2002-12-20 11:24:02 +00:00
parent 54f0b4be8b
commit 0321fa8ab1
1 changed files with 38 additions and 41 deletions
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79
sys/netinet/tcp_syncache.c
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@ -1142,16 +1142,14 @@ syncache_respond(sc, m)
ip->ip_tos = sc->sc_tp->t_inpcb->inp_ip_tos; /* XXX */
/*
* See if we should do MTU discovery. Route lookups are expensive,
* so we will only unset the DF bit if:
* See if we should do MTU discovery. Route lookups are
* expensive, so we will only unset the DF bit if:
*
* 1) path_mtu_discovery is disabled
* 2) the SCF_UNREACH flag has been set
*/
if (path_mtu_discovery
&& ((sc->sc_flags & SCF_UNREACH) == 0)) {
if (path_mtu_discovery && ((sc->sc_flags & SCF_UNREACH) == 0))
ip->ip_off |= IP_DF;
}
th = (struct tcphdr *)(ip + 1);
}
@ -1167,45 +1165,44 @@ syncache_respond(sc, m)
th->th_urp = 0;
/* Tack on the TCP options. */
if (optlen == 0)
goto no_options;
optp = (u_int8_t *)(th + 1);
*optp++ = TCPOPT_MAXSEG;
*optp++ = TCPOLEN_MAXSEG;
*optp++ = (mssopt >> 8) & 0xff;
*optp++ = mssopt & 0xff;
if (optlen != 0) {
optp = (u_int8_t *)(th + 1);
*optp++ = TCPOPT_MAXSEG;
*optp++ = TCPOLEN_MAXSEG;
*optp++ = (mssopt >> 8) & 0xff;
*optp++ = mssopt & 0xff;
if (sc->sc_flags & SCF_WINSCALE) {
*((u_int32_t *)optp) = htonl(TCPOPT_NOP << 24 |
TCPOPT_WINDOW << 16 | TCPOLEN_WINDOW << 8 |
sc->sc_request_r_scale);
optp += 4;
if (sc->sc_flags & SCF_WINSCALE) {
*((u_int32_t *)optp) = htonl(TCPOPT_NOP << 24 |
TCPOPT_WINDOW << 16 | TCPOLEN_WINDOW << 8 |
sc->sc_request_r_scale);
optp += 4;
}
if (sc->sc_flags & SCF_TIMESTAMP) {
u_int32_t *lp = (u_int32_t *)(optp);
/* Form timestamp option per appendix A of RFC 1323. */
*lp++ = htonl(TCPOPT_TSTAMP_HDR);
*lp++ = htonl(ticks);
*lp = htonl(sc->sc_tsrecent);
optp += TCPOLEN_TSTAMP_APPA;
}
/*
* Send CC and CC.echo if we received CC from our peer.
*/
if (sc->sc_flags & SCF_CC) {
u_int32_t *lp = (u_int32_t *)(optp);
*lp++ = htonl(TCPOPT_CC_HDR(TCPOPT_CC));
*lp++ = htonl(sc->sc_cc_send);
*lp++ = htonl(TCPOPT_CC_HDR(TCPOPT_CCECHO));
*lp = htonl(sc->sc_cc_recv);
optp += TCPOLEN_CC_APPA * 2;
}
}
if (sc->sc_flags & SCF_TIMESTAMP) {
u_int32_t *lp = (u_int32_t *)(optp);
/* Form timestamp option as shown in appendix A of RFC 1323. */
*lp++ = htonl(TCPOPT_TSTAMP_HDR);
*lp++ = htonl(ticks);
*lp = htonl(sc->sc_tsrecent);
optp += TCPOLEN_TSTAMP_APPA;
}
/*
* Send CC and CC.echo if we received CC from our peer.
*/
if (sc->sc_flags & SCF_CC) {
u_int32_t *lp = (u_int32_t *)(optp);
*lp++ = htonl(TCPOPT_CC_HDR(TCPOPT_CC));
*lp++ = htonl(sc->sc_cc_send);
*lp++ = htonl(TCPOPT_CC_HDR(TCPOPT_CCECHO));
*lp = htonl(sc->sc_cc_recv);
optp += TCPOLEN_CC_APPA * 2;
}
no_options:
#ifdef INET6
if (sc->sc_inc.inc_isipv6) {
struct route_in6 *ro6 = &sc->sc_route6;