usr/src/lib/libc/port/nsl/yp_order.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22
  23 /*
  24  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  25  * Use is subject to license terms.
  26  */
  27
  28 /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
  29 /*        All Rights Reserved   */
  30
  31 /*
  32  * Portions of this source code were derived from Berkeley
  33  * under license from the Regents of the University of
  34  * California.
  35  */
  36
  37 #pragma ident   "%Z%%M% %I%     %E% SMI"
  38
  39 #include "mt.h"
  40 #include <stdlib.h>
  41 #include <unistd.h>
  42 #include <rpc/rpc.h>
  43 #include "yp_b.h"
  44 #include <rpcsvc/yp_prot.h>
  45 #include <rpcsvc/ypclnt.h>
  46 #include <sys/types.h>
  47 #include <string.h>
  48
  49 static int doorder(char *, char *, struct dom_binding *, struct timeval,
  50     unsigned long *);
  51
  52
  53 /*
  54  * This checks parameters, and implements the outer "until binding success"
  55  * loop.
  56  */
  57 int
  58 yp_order(char *domain, char *map, unsigned long *order)
  59 {
  60         size_t domlen;
  61         size_t maplen;
  62         int reason;
  63         struct dom_binding *pdomb;
  64
  65         if ((map == NULL) || (domain == NULL))
  66                 return (YPERR_BADARGS);
  67
  68         domlen = strlen(domain);
  69         maplen = strlen(map);
  70
  71         if ((domlen == 0) || (domlen > YPMAXDOMAIN) ||
  72             (maplen == 0) || (maplen > YPMAXMAP) ||
  73             (order == NULL))
  74                 return (YPERR_BADARGS);
  75
  76         for (;;) {
  77
  78                 if (reason = __yp_dobind(domain, &pdomb))
  79                         return (reason);
  80
  81                 if (pdomb->dom_binding->ypbind_hi_vers >= YPVERS) {
  82
  83                         reason = doorder(domain, map, pdomb, _ypserv_timeout,
  84                             order);
  85
  86                         __yp_rel_binding(pdomb);
  87                         if (reason == YPERR_RPC) {
  88                                 yp_unbind(domain);
  89                                 (void) sleep(_ypsleeptime);
  90                         } else {
  91                                 break;
  92                         }
  93                 } else {
  94                         __yp_rel_binding(pdomb);
  95                         return (YPERR_VERS);
  96                 }
  97         }
  98
  99         return (reason);
 100 }
 101
 102 /*
 103  * This talks v3 to ypserv
 104  */
 105 static int
 106 doorder(char *domain, char *map, struct dom_binding *pdomb,
 107                                 struct timeval timeout, unsigned long *order)
 108 {
 109         struct ypreq_nokey req;
 110         struct ypresp_order resp;
 111         unsigned int retval = 0;
 112
 113         req.domain = domain;
 114         req.map = map;
 115         (void) memset((char *)&resp, 0, sizeof (struct ypresp_order));
 116
 117         /*
 118          * Do the get_order request.  If the rpc call failed, return with
 119          * status from this point.
 120          */
 121
 122         if (clnt_call(pdomb->dom_client, YPPROC_ORDER,
 123                         (xdrproc_t)xdr_ypreq_nokey,
 124                     (char *)&req, (xdrproc_t)xdr_ypresp_order, (char *)&resp,
 125                     timeout) != RPC_SUCCESS)
 126                 return (YPERR_RPC);
 127
 128         /* See if the request succeeded */
 129
 130         if (resp.status != YP_TRUE) {
 131                 retval = ypprot_err(resp.status);
 132         }
 133
 134         *order = (unsigned long)resp.ordernum;
 135         CLNT_FREERES(pdomb->dom_client,
 136                 (xdrproc_t)xdr_ypresp_order, (char *)&resp);
 137         return (retval);
 138 }