tree c00ba43a1cbeaf574f8621f6f8f99061cfb9544c
parent bbd867fde50dd296d9785dcc484ce8f6125e28ac
author Matthias Frei <matthias.frei@inf.ethz.ch> 1620146142 +0000
committer Emmanuel Odeke <emmanuel@orijtech.com> 1620182834 +0000

internal/socket: handle nil addr in sendMsgs

With the pool to reuse internal allocations for mmsghdrs introduced in
CL 315589, I've accidentally introduced a regression for sending
messages on dialed connections.
Calling sendMsgs with Messages with a nil address would panic during
(*msghdr).pack at msghdr_linux.go:18 when taking address of first
element of 0-sized buffer.
Handle this case by explicitly resetting the Name/Namelen.

Add test cases for writing to connected sockets.

Change-Id: I6d5dac696b7ab103a5290675c56002ede3e7b576
GitHub-Last-Rev: 4be010d03a0bcb86dda667952e3f60f096ebd3cc
GitHub-Pull-Request: golang/net#103
Reviewed-on: https://go-review.googlesource.com/c/net/+/316712
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>