lib/libc/yp/xdryp.c

   1 /*
   2  * Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. The name of the author may not be used to endorse or promote
  14  *    products derived from this software without specific prior written
  15  *    permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * $FreeBSD: src/lib/libc/yp/xdryp.c,v 1.15 2008/03/26 07:32:06 brueffer Exp $
  30  */
  31
  32 #include <rpc/rpc.h>
  33 #include <rpcsvc/yp.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36
  37 extern int (*ypresp_allfn)(unsigned long, char *, int, char *, int, void *);
  38 extern void *ypresp_data;
  39
  40 /*
  41  * I'm leaving the xdr_datum() function in purely for backwards
  42  * compatibility. yplib.c doesn't actually use it, but it's listed
  43  * in yp_prot.h as being available, so it's probably a good idea to
  44  * leave it in case somebody goes looking for it.
  45  */
  46 typedef struct {
  47         char   *dptr;
  48         size_t dsize;
  49 } datum;
  50
  51 bool_t
  52 xdr_datum(XDR *xdrs, datum *objp)
  53 {
  54         if (!xdr_bytes(xdrs, (char **)&objp->dptr, (u_int *)&objp->dsize, YPMAXRECORD)) {
  55                 return (FALSE);
  56         }
  57         return (TRUE);
  58 }
  59
  60 bool_t
  61 xdr_ypresp_all_seq(XDR *xdrs, u_long *objp)
  62 {
  63         struct ypresp_all out;
  64         u_long status;
  65         char *key, *val;
  66         int r;
  67
  68         bzero(&out, sizeof out);
  69         while (1) {
  70                 if (!xdr_ypresp_all(xdrs, &out)) {
  71                         xdr_free((xdrproc_t)xdr_ypresp_all, &out);
  72                         *objp = YP_YPERR;
  73                         return (FALSE);
  74                 }
  75                 if (out.more == 0) {
  76                         xdr_free((xdrproc_t)xdr_ypresp_all, &out);
  77                         *objp = YP_NOMORE;
  78                         return (TRUE);
  79                 }
  80                 status = out.ypresp_all_u.val.stat;
  81                 switch (status) {
  82                 case YP_TRUE:
  83                         key = (char *)malloc(out.ypresp_all_u.val.key.keydat_len + 1);
  84                         bcopy(out.ypresp_all_u.val.key.keydat_val, key,
  85                                 out.ypresp_all_u.val.key.keydat_len);
  86                         key[out.ypresp_all_u.val.key.keydat_len] = '\0';
  87                         val = (char *)malloc(out.ypresp_all_u.val.val.valdat_len + 1);
  88                         bcopy(out.ypresp_all_u.val.val.valdat_val, val,
  89                                 out.ypresp_all_u.val.val.valdat_len);
  90                         val[out.ypresp_all_u.val.val.valdat_len] = '\0';
  91                         xdr_free((xdrproc_t)xdr_ypresp_all, &out);
  92
  93                         r = (*ypresp_allfn)(status,
  94                                 key, out.ypresp_all_u.val.key.keydat_len,
  95                                 val, out.ypresp_all_u.val.val.valdat_len,
  96                                 ypresp_data);
  97                         *objp = status;
  98                         free(key);
  99                         free(val);
 100                         if (r)
 101                                 return (TRUE);
 102                         break;
 103                 case YP_NOMORE:
 104                         xdr_free((xdrproc_t)xdr_ypresp_all, &out);
 105                         *objp = YP_NOMORE;
 106                         return (TRUE);
 107                 default:
 108                         xdr_free((xdrproc_t)xdr_ypresp_all, &out);
 109                         *objp = status;
 110                         return (TRUE);
 111                 }
 112         }
 113 }