[MacPorts] #53910: xorg-server @1.18.4: repetitive crash. Can't kill it. Have to log out to stop it

[MacPorts]

#53910: xorg-server @1.18.4: repetitive crash.  Can't kill it. Have to log out to
stop it
--------------------------+----------------------
  Reporter:  bdbaddog     |      Owner:  jeremyhu
      Type:  defect       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  xorg-server  |
--------------------------+----------------------

Comment (by PaulForgey):

 This code as written will not work in clang. As addr->sa_data is a
 char[14], it will always cause an overflow check. If you replace 'portlen'
 with a constant like, say, 20, you'll get a warning explaining this will
 happen.

 Three ways to fix this:

 1) #undef strncpy
 2) do not use strncpy for the sa_data field of the abstract socket type
 3) use an intermediate void pointer assigned to sa_data, then strncpy into
 it

--
Ticket URL: <https://trac.macports.org/ticket/53910#comment:5>
MacPorts <https://www.macports.org/>
Ports system for macOS