lib/libc/rpc/crypt_client.c

   1 /*
   2  * Copyright (c) 1996
   3  *      Bill Paul <wpaul@ctr.columbia.edu>.  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. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by Bill Paul.
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * $FreeBSD: src/lib/libc/rpc/crypt_client.c,v 1.9 2003/02/16 17:29:10 nectar Exp $
  33  * $DragonFly: src/lib/libc/rpc/crypt_client.c,v 1.3 2005/11/13 12:27:04 swildner Exp $
  34  */
  35
  36 #include "namespace.h"
  37 #include <err.h>
  38 #include <sys/types.h>
  39 #include <rpc/des_crypt.h>
  40 #include <rpc/des.h>
  41 #include <string.h>
  42 #include <rpcsvc/crypt.h>
  43 #include "un-namespace.h"
  44
  45 int
  46 _des_crypt_call(char *buf, int len, struct desparams *dparms)
  47 {
  48         CLIENT *clnt;
  49         desresp  *result_1;
  50         desargs  des_crypt_1_arg;
  51         struct netconfig *nconf;
  52         void *localhandle;
  53         int stat;
  54
  55         nconf = NULL;
  56         localhandle = setnetconfig();
  57         while ((nconf = getnetconfig(localhandle)) != NULL) {
  58                 if (nconf->nc_protofmly != NULL &&
  59                      strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0)
  60                         break;
  61         }
  62         if (nconf == NULL) {
  63                 warnx("getnetconfig: %s", nc_sperror());
  64                 return(DESERR_HWERROR);
  65         }
  66         clnt = clnt_tp_create(NULL, CRYPT_PROG, CRYPT_VERS, nconf);
  67         if (clnt == (CLIENT *) NULL) {
  68                 endnetconfig(localhandle);
  69                 return(DESERR_HWERROR);
  70         }
  71         endnetconfig(localhandle);
  72
  73         des_crypt_1_arg.desbuf.desbuf_len = len;
  74         des_crypt_1_arg.desbuf.desbuf_val = buf;
  75         des_crypt_1_arg.des_dir = dparms->des_dir;
  76         des_crypt_1_arg.des_mode = dparms->des_mode;
  77         bcopy(dparms->des_ivec, des_crypt_1_arg.des_ivec, 8);
  78         bcopy(dparms->des_key, des_crypt_1_arg.des_key, 8);
  79
  80         result_1 = des_crypt_1(&des_crypt_1_arg, clnt);
  81         if (result_1 == (desresp *) NULL) {
  82                 clnt_destroy(clnt);
  83                 return(DESERR_HWERROR);
  84         }
  85
  86         stat = result_1->stat;
  87
  88         if (result_1->stat == DESERR_NONE ||
  89             result_1->stat == DESERR_NOHWDEVICE) {
  90                 bcopy(result_1->desbuf.desbuf_val, buf, len);
  91                 bcopy(result_1->des_ivec, dparms->des_ivec, 8);
  92         }
  93
  94         clnt_freeres(clnt, (xdrproc_t)xdr_desresp, result_1);
  95         clnt_destroy(clnt);
  96
  97         return(stat);
  98 }