CVS commit: src/sys/netinet

["Valeriy E. Ushakov" <uwe%netbsd.org@localhost>]

Module Name:    src
Committed By:   uwe
Date:           Mon May  7 23:42:13 UTC 2018

Modified Files:
        src/sys/netinet: tcp_output.c

Log Message:
Fix unsigned wraparound on window size calculations.

This is another instance where tp->rcv_adv - tp->rcv_nxt can wrap
around after successful zero-window probe from the peer.  The first
one was fixed by chs@ in revision 1.112 on 2004-05-08.

While here, CSE and de-obfuscate the code a bit.


To generate a diff of this commit:
cvs rdiff -u -r1.206 -r1.207 src/sys/netinet/tcp_output.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.