lib/librpcsvc/yp_passwd.c

   1 /*
   2  * Copyright (c) 1995, 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/librpcsvc/yp_passwd.c,v 1.7 2003/10/26 03:43:35 peter Exp $
  33  * $DragonFly: src/lib/librpcsvc/yp_passwd.c,v 1.3 2007/11/25 14:33:02 swildner Exp $
  34  */
  35
  36 #include <stdlib.h>
  37 #include <rpc/rpc.h>
  38 #include <rpcsvc/yp_prot.h>
  39 #include <rpcsvc/ypclnt.h>
  40 #include <rpcsvc/yppasswd.h>
  41 #include <netinet/in.h>
  42
  43 /*
  44  * XXX <rpcsvc/yppasswd.h> does a typedef that makes 'yppasswd'
  45  * a type of struct yppasswd. This leads to a namespace collision:
  46  * gcc will not let you have a type called yppasswd and a function
  47  * called yppasswd(). In order to get around this, we call the
  48  * actual function _yppasswd() and put a macro called yppasswd()
  49  * in yppasswd.h which calls the underlying function, thereby
  50  * fooling gcc.
  51  */
  52
  53 int
  54 _yppasswd(char *oldpass, struct x_passwd *newpw)
  55 {
  56         char *server;
  57         char *domain;
  58         int rval, result;
  59         struct yppasswd yppasswd;
  60
  61         yppasswd.newpw = *newpw;
  62         yppasswd.oldpass = oldpass;
  63
  64         if (yp_get_default_domain(&domain))
  65                 return (-1);
  66
  67         if (yp_master(domain, "passwd.byname", &server))
  68                 return(-1);
  69
  70         rval = getrpcport(server, YPPASSWDPROG,
  71                                 YPPASSWDPROC_UPDATE, IPPROTO_UDP);
  72
  73         if (rval == 0 || rval >= IPPORT_RESERVED) {
  74                 free(server);
  75                 return(-1);
  76         }
  77
  78         rval = callrpc(server, YPPASSWDPROG, YPPASSWDVERS, YPPASSWDPROC_UPDATE,
  79                        (xdrproc_t)xdr_yppasswd, (char *)&yppasswd,
  80                        (xdrproc_t)xdr_int, (char *)&result);
  81
  82         free(server);
  83         if (rval || result)
  84                 return(-1);
  85         else
  86                 return(0);
  87 }