NAME

     getdtablesize - get descriptor table size

SYNOPSIS

     #include <unistd.h>

     int getdtablesize(void);

DESCRIPTION

     getdtablesize returns the maximum number of files a  process
     can have open.

NOTES

     getdtablesize is implemented as a library  function  in  DLL
     4.4.1.   This function returns OPEN_MAX (set to 256 in Linux
     2.0.23) if OPEN_MAX was defined when the  library  was  com-
     piled.   Otherwise,  -1  is  returned,  and  errno is set to
     ENOSYS.

CONFORMING TO

     SVr4, 4.4BSD (the getdtablesize function first  appeared  in
     BSD 4.2).

SEE ALSO

     close(2), dup(2), open(2)