netdev - TCP partial write

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <394b5e260906141252g56d4275k185230f724b842ac@mail.gmail.com>
Date:	Sun, 14 Jun 2009 21:52:07 +0200
From:	Paul Martin <srucnoc@...il.com>
To:	netdev@...r.kernel.org
Subject: TCP partial write

Is it possible that a (non-blocking) TCP write(2) will write a number
of bytes not multiple of the machine word size? i.e., could a write
request for 4 bytes return 2?

Also is this an OS-dependent behavior or there is a spec for it? (I
could find atomic guarantees for pipes and datagram sockets but not
for TCP)

Thanks,
Paul
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html