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  * $DragonFly: src/lib/libc/yp/xdryp.c,v 1.4 2005/11/20 13:24:36 swildner Exp $
  31  */
  32
  33 #include <rpc/rpc.h>
  34 #include <rpcsvc/yp.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37
  38 extern int (*ypresp_allfn)(unsigned long, char *, int, char *, int, void *);
  39 extern void *ypresp_data;
  40
  41 /*
  42  * I'm leaving the xdr_datum() function in purely for backwards
  43  * compatibility. yplib.c doesn't actually use it, but it's listed
  44  * in yp_prot.h as being available, so it's probably a good idea to
  45  * leave it in case somebody goes looking for it.
  46  */
  47 typedef struct {
  48         char *dptr;
  49         int  dsize;
  50 } datum;
  51
  52 bool_t
  53 xdr_datum(XDR *xdrs, datum *objp)
  54 {
  55         if (!xdr_bytes(xdrs, (char **)&objp->dptr, (u_int *)&objp->dsize, YPMAXRECORD)) {
  56                 return (FALSE);
  57         }
  58         return (TRUE);
  59 }
  60
  61 bool_t
  62 xdr_ypresp_all_seq(XDR *xdrs, u_long *objp)
  63 {
  64         struct ypresp_all out;
  65         u_long status;
  66         char *key, *val;
  67         int r;
  68
  69         bzero(&out, sizeof out);
  70         while (1) {
  71                 if (!xdr_ypresp_all(xdrs, &out)) {
  72                         xdr_free((xdrproc_t)xdr_ypresp_all, &out);
  73                         *objp = YP_YPERR;
  74                         return (FALSE);
  75                 }
  76                 if (out.more == 0) {
  77                         xdr_free((xdrproc_t)xdr_ypresp_all, &out);
  78                         *objp = YP_NOMORE;
  79                         return (TRUE);
  80                 }
  81                 status = out.ypresp_all_u.val.stat;
  82                 switch (status) {
  83                 case YP_TRUE:
  84                         key = (char *)malloc(out.ypresp_all_u.val.key.keydat_len + 1);
  85                         bcopy(out.ypresp_all_u.val.key.keydat_val, key,
  86                                 out.ypresp_all_u.val.key.keydat_len);
  87                         key[out.ypresp_all_u.val.key.keydat_len] = '\0';
  88                         val = (char *)malloc(out.ypresp_all_u.val.val.valdat_len + 1);
  89                         bcopy(out.ypresp_all_u.val.val.valdat_val, val,
  90                                 out.ypresp_all_u.val.val.valdat_len);
  91                         val[out.ypresp_all_u.val.val.valdat_len] = '\0';
  92                         xdr_free((xdrproc_t)xdr_ypresp_all, &out);
  93
  94                         r = (*ypresp_allfn)(status,
  95                                 key, out.ypresp_all_u.val.key.keydat_len,
  96                                 val, out.ypresp_all_u.val.val.valdat_len,
  97                                 ypresp_data);
  98                         *objp = status;
  99                         free(key);
 100                         free(val);
 101                         if (r)
 102                                 return (TRUE);
 103                         break;
 104                 case YP_NOMORE:
 105                         xdr_free((xdrproc_t)xdr_ypresp_all, &out);
 106                         *objp = YP_NOMORE;
 107                         return (TRUE);
 108                 default:
 109                         xdr_free((xdrproc_t)xdr_ypresp_all, &out);
 110                         *objp = status;
 111                         return (TRUE);
 112                 }
 113         }
 114 }