mdw@git.distorted.org.uk Git - become/blob - src/ypstuff.c

   1 /* -*-c-*-
   2  *
   3  * $Id: ypstuff.c,v 1.1 1998/04/23 13:29:33 mdw Exp $
   4  *
   5  * YP support functions
   6  *
   7  * (c) 1998 EBI
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of `become'
  13  *
  14  * `Become' is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * `Become' is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with `become'; if not, write to the Free Software Foundation,
  26  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  27  */
  28
  29 /*----- Revision history --------------------------------------------------*
  30  *
  31  * $Log: ypstuff.c,v $
  32  * Revision 1.1  1998/04/23 13:29:33  mdw
  33  * New interface to YP server.  Only bind once, and never unbind.
  34  * Introduced because Linux libc-5.4.33's YP interface dumps core in
  35  * yp_unbind for no particularly good reason.
  36  *
  37  */
  38
  39 /*----- Header files ------------------------------------------------------*/
  40
  41 /* --- ANSI headers --- */
  42
  43 #include <errno.h>
  44 #include <stdio.h>
  45 #include <stdlib.h>
  46 #include <string.h>
  47
  48 /* --- Local headers --- */
  49
  50 #include "config.h"
  51 #include "ypstuff.h"
  52
  53 /*----- Global variables --------------------------------------------------*/
  54
  55 char *yp_domain;
  56 static int ypstuff__tried;
  57
  58 /*----- Main code ---------------------------------------------------------*/
  59
  60 #ifdef HAVE_YP
  61
  62 /* --- @ypstuff_bind@ --- *
  63  *
  64  * Arguments:   ---
  65  *
  66  * Returns:     ---
  67  *
  68  * Use:         Attempts to bind to a YP server, just once.  If it fails,
  69  *              @yp_domain@ will be null; otherwise it's a pointer to the
  70  *              default YP domain name.
  71  */
  72
  73 void ypstuff_bind(void)
  74 {
  75   char *dom;
  76
  77   if (ypstuff__tried)
  78     return;
  79   ypstuff__tried = 1;
  80   if (yp_get_default_domain(&dom) || yp_bind(dom))
  81     return;
  82   yp_domain = dom;
  83 }
  84
  85 #endif
  86
  87 /*----- That's all, folks -------------------------------------------------*/