tree da5f36fbd4c0508a62eca103c77bf2db7b15e15b
parent 54b7564b72c1edcc79fca083047521fb56eaea00
author Rich Felker <dalias@aerifal.cx> 1561759083 -0400
committer Rich Felker <dalias@aerifal.cx> 1561759083 -0400

cap getdents length argument to INT_MAX

the linux syscall treats this argument as having type int, so passing
extremely long buffer sizes would be misinterpreted by the kernel.
since "short reads" are always acceptable, just cap it down.

patch based on report and suggested change by Florian Weimer.