On 3/1/2019 10:10 AM, Josh Fisher wrote:
On 3/1/2019 6:34 AM, Kern Sibbald wrote:
At this point, my best assessment is that there is a bug in the Zyxel
libraries.
It is certainly a bug in the Zyxel libraries. The accept4() is throwing
a ENOSYS, meaning that the function is simply not implemented. It seems
the header file being used (sys/socket.h) does not match the installed
library.
Nevertheless, accept4() is a convenience extension and it doesn't seem
worth potentially breaking some platforms to save one or two fcntl() calls.
My point was, what are the chances the programmer had no clue about
accept4() being non-portable non-POSIX gunk in the first place? One
wonders what flags are actually being passed to the call in question.
(Yes, I've built GNU stuff on SPARC Solaris with Sun Studio. That's
where contempt for libtool and "gunk" pronunciation of "GNU C" comes from.)
Dima
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