[src/trunk]: src/sys/netinet rename off -> thlen

[maxv <maxv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/89ecd78af039
branches:  trunk
changeset: 993473:89ecd78af039
user:      maxv <maxv%NetBSD.org@localhost>
date:      Fri Sep 14 04:25:16 2018 +0000

description:
rename off -> thlen

diffstat:

 sys/netinet/tcp_input.c |  26 +++++++++++++-------------
 1 files changed, 13 insertions(+), 13 deletions(-)

diffs (83 lines):

diff -r c3be873bb103 -r 89ecd78af039 sys/netinet/tcp_input.c
--- a/sys/netinet/tcp_input.c   Fri Sep 14 01:55:19 2018 +0000
+++ b/sys/netinet/tcp_input.c   Fri Sep 14 04:25:16 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: tcp_input.c,v 1.409 2018/09/03 16:29:36 riastradh Exp $        */
+/*     $NetBSD: tcp_input.c,v 1.410 2018/09/14 04:25:16 maxv Exp $     */
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -148,7 +148,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tcp_input.c,v 1.409 2018/09/03 16:29:36 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tcp_input.c,v 1.410 2018/09/14 04:25:16 maxv Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
@@ -1194,7 +1194,7 @@
 #endif
        u_long tiwin;
        struct tcp_opt_info opti;
-       int off, iphlen;
+       int thlen, iphlen;
        va_list ap;
        int af;         /* af on the wire */
        struct mbuf *tcp_saveti = NULL;
@@ -1327,21 +1327,21 @@
         * Check that TCP offset makes sense, pull out TCP options and
         * adjust length.
         */
-       off = th->th_off << 2;
-       if (off < sizeof(struct tcphdr) || off > tlen) {
+       thlen = th->th_off << 2;
+       if (thlen < sizeof(struct tcphdr) || thlen > tlen) {
                TCP_STATINC(TCP_STAT_RCVBADOFF);
                goto drop;
        }
-       tlen -= off;
-
-       if (off > sizeof(struct tcphdr)) {
-               M_REGION_GET(th, struct tcphdr *, m, toff, off);
+       tlen -= thlen;
+
+       if (thlen > sizeof(struct tcphdr)) {
+               M_REGION_GET(th, struct tcphdr *, m, toff, thlen);
                if (th == NULL) {
                        TCP_STATINC(TCP_STAT_RCVSHORT);
                        return;
                }
                KASSERT(TCP_HDR_ALIGNED_P(th));
-               optlen = off - sizeof(struct tcphdr);
+               optlen = thlen - sizeof(struct tcphdr);
                optp = ((u_int8_t *)th) + sizeof(struct tcphdr);
 
                /*
@@ -1368,7 +1368,7 @@
        /*
         * Checksum extended TCP header and data
         */
-       if (tcp_input_checksum(af, m, th, toff, off, tlen))
+       if (tcp_input_checksum(af, m, th, toff, thlen, tlen))
                goto badcsum;
 
        /*
@@ -2020,7 +2020,7 @@
                                        if (!sbreserve(&so->so_rcv,
                                            newsize, so))
                                                so->so_rcv.sb_flags &= ~SB_AUTOSIZE;
-                               m_adj(m, toff + off);
+                               m_adj(m, toff + thlen);
                                sbappendstream(&so->so_rcv, m);
                        }
                        sorwakeup(so);
@@ -2039,7 +2039,7 @@
        /*
         * Compute mbuf offset to TCP data segment.
         */
-       hdroptlen = toff + off;
+       hdroptlen = toff + thlen;
 
        /*
         * Calculate amount of space in receive window. Receive window is