Re: git: 943c446629e3 - main - Revert "libc: Some enhancements to syslog(3)"

On Tue, Nov 30, 2021 at 06:12:42PM +0000, Alan Somers wrote:
A>     Revert "libc: Some enhancements to syslog(3)"
A>     
A>     This reverts commit 2886c93d1bca231260ebc01d4205743ca781f3c7.
A>     The original commit has two problems:
A>     
A>     * It sets SO_SNDBUF to be as large as MAXLINE.  But for unix domain
A>       sockets, the send buffer is bypassed.  Packets go directly to the
A>       peer's receive buffer, so setting and querying SO_SNDBUF is
A>       ineffective.  To ensure that the socket can accept messages of a
A>       certain size, it would be necessary to add a SO_PEERRCVBUF socket
A>       option that could query the connected peer's receive buffer size.

I'd rather say we don't need SO_PEERRCVBUF. The SO_SNDBUF on AF_UNIX
should transparently to the application look and report peer's receive buffer.

-- 
Gleb Smirnoff