lib/libc/rpc/rpc_dtablesize.c

   1 /*      $NetBSD: rpc_dtablesize.c,v 1.14 1998/11/15 17:32:43 christos Exp $     */
   2
   3 /*
   4  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
   5  * unrestricted use provided that this legend is included on all tape
   6  * media and as a part of the software program in whole or part.  Users
   7  * may copy or modify Sun RPC without charge, but are not authorized
   8  * to license or distribute it to anyone else except as part of a product or
   9  * program developed by the user.
  10  *
  11  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  12  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  13  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  14  *
  15  * Sun RPC is provided with no support and without any obligation on the
  16  * part of Sun Microsystems, Inc. to assist in its use, correction,
  17  * modification or enhancement.
  18  *
  19  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  20  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  21  * OR ANY PART THEREOF.
  22  *
  23  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  24  * or profits or other special, indirect and consequential damages, even if
  25  * Sun has been advised of the possibility of such damages.
  26  *
  27  * Sun Microsystems, Inc.
  28  * 2550 Garcia Avenue
  29  * Mountain View, California  94043
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #if defined(LIBC_SCCS) && !defined(lint)
  34 #if 0
  35 static char *sccsid = "@(#)rpc_dtablesize.c 1.2 87/08/11 Copyr 1987 Sun Micro";
  36 static char *sccsid = "@(#)rpc_dtablesize.c     2.1 88/07/29 4.0 RPCSRC";
  37 #else
  38 __RCSID("$NetBSD: rpc_dtablesize.c,v 1.14 1998/11/15 17:32:43 christos Exp $");
  39 #endif
  40 #endif
  41
  42 #include "namespace.h"
  43
  44 #include <unistd.h>
  45
  46 int _rpc_dtablesize __P((void));        /* XXX */
  47
  48 /*
  49  * Cache the result of sysconf(_SC_OPEN_MAX), so we don't have to do an
  50  * expensive system call every time.
  51  */
  52 int
  53 _rpc_dtablesize()
  54 {
  55         static int size;
  56         if (size == 0)
  57                 size = (int)sysconf(_SC_OPEN_MAX);
  58         return (size);
  59 }