xref: /illumos-gate/usr/src/cmd/rpcsvc/rstat_main.c (revision 49e7ca49)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include "rstat.h"
30 #include "rstat_v2.h"
31 #include <stdio.h>
32 #include <stdlib.h> /* getenv, exit */
33 #include <signal.h>
34 #include <sys/types.h>
35 #include <memory.h>
36 #include <stropts.h>
37 #include <netconfig.h>
38 #include <syslog.h>
39 
40 #ifdef __STDC__
41 #define	SIG_PF void(*)(int)
42 #endif
43 
44 #ifdef DEBUG
45 #define	RPC_SVC_FG
46 #endif
47 
48 
49 int _rpcpmstart;		/* Started by a port monitor ? */
50 int _rpcfdtype;			/* Whether Stream or Datagram ? */
51 int _rpcsvcdirty;		/* Still serving ? */
52 
53 static void _msgout(/*char *msg*/);
54 static void closedown();
55 
56 extern void rstatprog_4(/*struct svc_req *rqstp, SVCXPRT *transp*/);
57 extern void rstatprog_3(/*struct svc_req *rqstp, SVCXPRT *transp*/);
58 extern void rstatprog_2(/*struct svc_req *rqstp, SVCXPRT *transp*/);
59 
60 int
main(int argc,char * argv[])61 main(int argc, char *argv[])
62 {
63 	pid_t pid;
64 	int i;
65 
66 	/*
67 	 * If stdin looks like a TLI endpoint, we assume
68 	 * that we were started by a port monitor. If
69 	 * t_getstate fails with TBADF, this is not a
70 	 * TLI endpoint.
71 	 */
72 	if (t_getstate(0) != -1 || t_errno != TBADF) {
73 		char *netid;
74 		struct netconfig *nconf = NULL;
75 		SVCXPRT *transp;
76 
77 		_rpcpmstart = 1;
78 		openlog("rstatd", LOG_PID, LOG_DAEMON);
79 		if ((netid = getenv("NLSPROVIDER")) == NULL) {
80 #ifdef DEBUG
81 			_msgout("cannot get transport name");
82 #endif
83 		} else if ((nconf = getnetconfigent(netid)) == NULL) {
84 #ifdef DEBUG
85 			_msgout("cannot get transport info");
86 #endif
87 		}
88 		if ((transp = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {
89 			_msgout("cannot create server handle");
90 			exit(1);
91 		}
92 		if (nconf)
93 			freenetconfigent(nconf);
94 		if (!svc_reg(transp, RSTATPROG, RSTATVERS_VAR, rstatprog_4,
95 		    0)) {
96 			_msgout("unable to register "
97 			    "(RSTATPROG, RSTATVERS_VAR).");
98 			exit(1);
99 		}
100 		if (!svc_reg(transp, RSTATPROG, RSTATVERS_TIME, rstatprog_3,
101 		    0)) {
102 			_msgout("unable to register "
103 			    "(RSTATPROG, RSTATVERS_TIME).");
104 			exit(1);
105 		}
106 		if (!svc_reg(transp, RSTATPROG, RSTATVERS_SWTCH, rstatprog_2,
107 		    0)) {
108 			_msgout("unable to register "
109 			    "(RSTATPROG, RSTATVERS_SWTCH).");
110 			exit(1);
111 		}
112 		svc_run();
113 		exit(1);
114 		/* NOTREACHED */
115 	} else {
116 #ifndef RPC_SVC_FG
117 		pid = fork();
118 		if (pid < 0) {
119 			perror("cannot fork");
120 			exit(1);
121 		}
122 		if (pid)
123 			exit(0);
124 		closefrom(0);
125 		i = open("/dev/console", 2);
126 		(void) dup2(i, 1);
127 		(void) dup2(i, 2);
128 		setsid();
129 		openlog("rstatd", LOG_PID, LOG_DAEMON);
130 #endif
131 	}
132 	if (!svc_create(rstatprog_4, RSTATPROG, RSTATVERS_VAR, "datagram_v")) {
133 		_msgout("unable to create (RSTATPROG, RSTATVERS_VAR) "
134 		    "for datagram_v.");
135 		exit(1);
136 	}
137 	if (!svc_create(rstatprog_3, RSTATPROG, RSTATVERS_TIME,
138 	    "datagram_v")) {
139 		_msgout("unable to create (RSTATPROG, RSTATVERS_TIME) "
140 		    "for datagram_v.");
141 		exit(1);
142 	}
143 	if (!svc_create(rstatprog_4, RSTATPROG, RSTATVERS_VAR, "circuit_v")) {
144 		_msgout("unable to create (RSTATPROG, RSTATVERS_VAR) "
145 		    "for circuit_v.");
146 		exit(1);
147 	}
148 	if (!svc_create(rstatprog_3, RSTATPROG, RSTATVERS_TIME, "circuit_v")) {
149 		_msgout("unable to create (RSTATPROG, RSTATVERS_TIME) "
150 		    "for circuit_v.");
151 		exit(1);
152 	}
153 
154 	/*
155 	 * V2 supported on datagram transports *only*
156 	 */
157 	if (!svc_create(rstatprog_2, RSTATPROG, RSTATVERS_SWTCH,
158 	    "datagram_v")) {
159 		_msgout("unable to create (RSTATPROG, RSTATVERS_SWTCH) "
160 		    "for datagram_v.");
161 		exit(1);
162 	}
163 
164 	svc_run();
165 	_msgout("svc_run returned");
166 	return (1);
167 }
168 
169 static void
_msgout(msg)170 _msgout(msg)
171 	char *msg;
172 {
173 #ifdef RPC_SVC_FG
174 	if (_rpcpmstart)
175 		syslog(LOG_ERR, msg);
176 	else
177 		(void) fprintf(stderr, "%s\n", msg);
178 #else
179 	syslog(LOG_ERR, msg);
180 #endif
181 }
182