1 /* $NetBSD: rpc_dtablesize.c,v 1.4 1996/03/29 23:00:54 jtc 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 #if defined(LIBC_SCCS) && !defined(lint) 33 /*static char *sccsid = "from: @(#)rpc_dtablesize.c 1.2 87/08/11 Copyr 1987 Sun Micro";*/ 34 /*static char *sccsid = "from: @(#)rpc_dtablesize.c 2.1 88/07/29 4.0 RPCSRC";*/ 35 static char *rcsid = "$NetBSD: rpc_dtablesize.c,v 1.4 1996/03/29 23:00:54 jtc Exp $"; 36 #endif 37 38 #include <sys/types.h> 39 40 /* 41 * Cache the result of getdtablesize(), so we don't have to do an 42 * expensive system call every time. 43 */ 44 int 45 _rpc_dtablesize() 46 { 47 static int size; 48 49 if (size == 0) { 50 size = getdtablesize(); 51 #ifdef FD_SETSIZE 52 /* prevent select() from breaking */ 53 if (size > FD_SETSIZE) 54 size = FD_SETSIZE; 55 #endif 56 } 57 return (size); 58 } 59