The lack of UNIX_PATH_MAX on sys/un.h

[Florian Weimer]

On 12/07/2017 10:33 PM, omri wrote:

> The change to use sys/un.h is fairly trivial but I was using the UNIX_PATH_MAX
> definition.
> 
> Is there any reason this isn't defined in glibc? are there any reservations from adding it?

I don't think it is in any standard.

UNIX_PATH_MAX is also a misnomer, it's just the size of the defined 
array in struct sockaddr_un.  The actual kernel limit is somewhere 
around PATH_MAX.

Thanks,
Florian