usr.sbin/ypserv/yppush/yppush_svc.c

   1 /*      $NetBSD: yppush_svc.c,v 1.8 2009/04/19 06:06:40 lukem Exp $     */
   2
   3 /*
   4  * Copyright (c) 1996 Mats O Jansson <moj@stacken.kth.se>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
  17  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  20  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 #ifndef lint
  31 __RCSID("$NetBSD: yppush_svc.c,v 1.8 2009/04/19 06:06:40 lukem Exp $");
  32 #endif
  33
  34 /*
  35  * Originally from an rpcgen-generated file, then cleaned up
  36  * by Jason R. Thorpe <thorpej@NetBSD.org>.
  37  */
  38
  39 #include <sys/types.h>
  40 #include <sys/socket.h>
  41
  42 #include <netinet/in.h>
  43
  44 #include <err.h>
  45 #include <stdio.h>
  46 #include <stdlib.h>
  47 #include <netdb.h>
  48 #include <signal.h>
  49 #include <string.h>
  50 #include <syslog.h>
  51
  52 #include <rpc/rpc.h>
  53 #include <rpc/xdr.h>
  54 #include <rpcsvc/yp_prot.h>
  55
  56 #include "yppush.h"
  57
  58 #ifdef DEBUG
  59 #define RPC_SVC_FG
  60 #endif
  61
  62 #define _RPCSVC_CLOSEDOWN 120
  63 int _rpcpmstart;                /* Started by a port monitor ? */
  64 int _rpcfdtype;                 /* Whether Stream or Datagram ? */
  65 int _rpcsvcdirty;               /* Still serving ? */
  66
  67 static  void _msgout(const char *);
  68
  69 static
  70 void _msgout(const char *msg)
  71 {
  72 #ifdef RPC_SVC_FG
  73         if (_rpcpmstart)
  74                 syslog(LOG_ERR, "%s", msg);
  75         else
  76                 warnx("%s", msg);
  77 #else
  78         syslog(LOG_ERR, "%s", msg);
  79 #endif
  80 }
  81
  82 void
  83 yppush_xfrrespprog_1(struct svc_req *rqstp, SVCXPRT *transp)
  84 {
  85         union {
  86                 struct yppushresp_xfr yppushproc_xfrresp_1_arg;
  87         } argument;
  88         void *result;
  89         xdrproc_t xdr_argument, xdr_result;
  90         void *(*local)(void *, struct svc_req *);
  91
  92         _rpcsvcdirty = 1;
  93         switch (rqstp->rq_proc) {
  94         case YPPUSHPROC_NULL:
  95                 xdr_argument = xdr_void;
  96                 xdr_result = xdr_void;
  97                 local = yppushproc_null_1_svc;
  98                 break;
  99
 100         case YPPUSHPROC_XFRRESP:
 101                 xdr_argument = xdr_yppushresp_xfr;
 102                 xdr_result = xdr_void;
 103                 local = yppushproc_xfrresp_1_svc;
 104                 break;
 105
 106         default:
 107                 svcerr_noproc(transp);
 108                 _rpcsvcdirty = 0;
 109                 exit(1);
 110                 return;
 111         }
 112
 113         (void) memset((char *)&argument, 0, sizeof (argument));
 114         if (!svc_getargs(transp, xdr_argument, (caddr_t) &argument)) {
 115                 svcerr_decode(transp);
 116                 _rpcsvcdirty = 0;
 117                 exit(1);
 118                 return;
 119         }
 120
 121         result = (*local)(&argument, rqstp);
 122         if (result != NULL && !svc_sendreply(transp, xdr_result, result))
 123                 svcerr_systemerr(transp);
 124
 125         if (!svc_freeargs(transp, xdr_argument, (caddr_t) &argument)) {
 126                 _msgout("unable to free arguments");
 127                 exit(1);
 128         }
 129         _rpcsvcdirty = 0;
 130         if (rqstp->rq_proc != YPPUSHPROC_NULL)
 131                 exit(0);
 132         return;
 133 }