1  /* @(#)rpc_dtablesize.c	2.1 88/07/29 4.0 RPCSRC */
       2  /*
       3   * Copyright (c) 2010, Oracle America, Inc.
       4   * Redistribution and use in source and binary forms, with or without
       5   * modification, are permitted provided that the following conditions are
       6   * met:
       7   *
       8   *     * Redistributions of source code must retain the above copyright
       9   *       notice, this list of conditions and the following disclaimer.
      10   *     * Redistributions in binary form must reproduce the above
      11   *       copyright notice, this list of conditions and the following
      12   *       disclaimer in the documentation and/or other materials
      13   *       provided with the distribution.
      14   *     * Neither the name of the "Oracle America, Inc." nor the names of its
      15   *       contributors may be used to endorse or promote products derived
      16   *       from this software without specific prior written permission.
      17   *
      18   *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      19   *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      20   *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
      21   *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
      22   *   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
      23   *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      24   *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
      25   *   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
      26   *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
      27   *   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
      28   *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      29   *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      30   */
      31  
      32  #include <unistd.h>
      33  #include <rpc/clnt.h>
      34  #include <shlib-compat.h>
      35  
      36  /*
      37   * Cache the result of getdtablesize(), so we don't have to do an
      38   * expensive system call every time.
      39   */
      40  int
      41  _rpc_dtablesize (void)
      42  {
      43    static int size;
      44  
      45    if (size == 0)
      46      size = __getdtablesize ();
      47  
      48    return size;
      49  }
      50  libc_hidden_nolink_sunrpc (_rpc_dtablesize, GLIBC_2_0)