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28 * @(#)rpc_dtablesize.c 1.2 87/08/11 Copyr 1987 Sun Micro
29 * @(#)rpc_dtablesize.c 2.1 88/07/29 4.0 RPCSRC
30 * $NetBSD: rpc_dtablesize.c,v 1.14 1998/11/15 17:32:43 christos Exp $
31 * $FreeBSD: src/lib/libc/rpc/rpc_dtablesize.c,v 1.15 2004/10/16 06:11:35 obrien Exp $
32 * $DragonFly: src/lib/libc/rpc/rpc_dtablesize.c,v 1.3 2005/01/31 22:29:38 dillon Exp $
35 #include "namespace.h"
37 #include "un-namespace.h"
39 int _rpc_dtablesize(void); /* XXX */
42 * Cache the result of getdtablesize(), so we don't have to do an
43 * expensive system call every time.
46 * XXX In FreeBSD 2.x, you can have the maximum number of open file
47 * descriptors be greater than FD_SETSIZE (which us 256 by default).
49 * Since old programs tend to use this call to determine the first arg
50 * for _select(), having this return > FD_SETSIZE is a Bad Idea(TM)!
58 size = getdtablesize();
59 if (size > FD_SETSIZE)