NAME
getdtablesize - get descriptor table size

SYNOPSIS
nfds = getdtablesize()
int nfds;

DESCRIPTION
Each process has a fixed size descriptor table, which is guaranteed
to have at least 20 slots. The entries in the descriptor table are
numbered with small integers starting at 0. The call getdtablesize
returns the size of this table.

SEE ALSO
close(2), dup(2), open(2), select(2)