xref: /netbsd/usr.sbin/ypserv/yppush/yppush_svc.c (revision 3cd9f110)
1 /*	$NetBSD: yppush_svc.c,v 1.10 2011/08/30 17:06:22 plunky 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 1.10 2011/08/30 17:06:22 plunky 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
_msgout(const char * msg)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
yppush_xfrrespprog_1(struct svc_req * rqstp,SVCXPRT * transp)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 = (xdrproc_t)xdr_void;
96 		xdr_result = (xdrproc_t)xdr_void;
97 		local = yppushproc_null_1_svc;
98 		break;
99 
100 	case YPPUSHPROC_XFRRESP:
101 		xdr_argument = (xdrproc_t)xdr_yppushresp_xfr;
102 		xdr_result = (xdrproc_t)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 }
134