[dragonfly.git] / libexec / rpc.sprayd / sprayd.c

/*
 * Copyright (c) 1994 Christos Zoulas
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Christos Zoulas.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $FreeBSD: src/libexec/rpc.sprayd/sprayd.c,v 1.5 1999/08/28 00:09:59 peter Exp $
 */

#include <rpc/rpc.h>
#include <rpc/pmap_clnt.h>
#include <rpcsvc/spray.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <syslog.h>
#include <unistd.h>

static void spray_service (struct svc_req *, SVCXPRT *);

static int from_inetd = 1;

#define	timersub(tvp, uvp, vvp)						\
	do {								\
		(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;		\
		(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;	\
		if ((vvp)->tv_usec < 0) {				\
			(vvp)->tv_sec--;				\
			(vvp)->tv_usec += 1000000;			\
		}							\
	} while (0)

#define TIMEOUT 120

void
cleanup(int sig)
{
	(void) pmap_unset(SPRAYPROG, SPRAYVERS);
	exit(0);
}

void
die(int sig)
{
	exit(0);
}

int
main(int argc, char *argv[])
{
	SVCXPRT *transp;
	int sock = 0;
	int proto = 0;
	struct sockaddr_in from;
	int fromlen;

	/*
	 * See if inetd started us
	 */
	fromlen = sizeof(from);
	if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
		from_inetd = 0;
		sock = RPC_ANYSOCK;
		proto = IPPROTO_UDP;
	}

	if (!from_inetd) {
		daemon(0, 0);

		(void) pmap_unset(SPRAYPROG, SPRAYVERS);

		(void) signal(SIGINT, cleanup);
		(void) signal(SIGTERM, cleanup);
		(void) signal(SIGHUP, cleanup);
	} else {
		(void) signal(SIGALRM, die);
		alarm(TIMEOUT);
	}

	openlog("rpc.sprayd", LOG_CONS|LOG_PID, LOG_DAEMON);

	transp = svcudp_create(sock);
	if (transp == NULL) {
		syslog(LOG_ERR, "cannot create udp service");
		return 1;
	}
	if (!svc_register(transp, SPRAYPROG, SPRAYVERS, spray_service, proto)) {
		syslog(LOG_ERR,
		    "unable to register (SPRAYPROG, SPRAYVERS, %s)",
		    proto ? "udp" : "(inetd)");
		return 1;
	}

	svc_run();
	syslog(LOG_ERR, "svc_run returned");
	return 1;
}


static void
spray_service(struct svc_req *rqstp, SVCXPRT *transp)
{
	static spraycumul scum;
	static struct timeval clear, get;

	switch (rqstp->rq_proc) {
	case SPRAYPROC_CLEAR:
		scum.counter = 0;
		(void) gettimeofday(&clear, 0);
		/*FALLTHROUGH*/

	case NULLPROC:
		(void)svc_sendreply(transp, (xdrproc_t)xdr_void, NULL);
		return;

	case SPRAYPROC_SPRAY:
		scum.counter++;
		return;

	case SPRAYPROC_GET:
		(void) gettimeofday(&get, 0);
		timersub(&get, &clear, &get);
		scum.clock.sec = get.tv_sec;
		scum.clock.usec = get.tv_usec;
		break;

	default:
		svcerr_noproc(transp);
		return;
	}

	if (!svc_sendreply(transp, (xdrproc_t)xdr_spraycumul, &scum)) {
		svcerr_systemerr(transp);
		syslog(LOG_ERR, "bad svc_sendreply");
	}
}
Commit	Line	Data
984263bc MD	1	/*
	2	* Copyright (c) 1994 Christos Zoulas
	3	* 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 Christos Zoulas.
	16	* 4. The name of the author may not be used to endorse or promote products
	17	* derived from this software without specific prior written permission.
	18	*
	19	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	20	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	21	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
	22	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
	23	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	24	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	25	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	26	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	27	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	28	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1de703da MD	29	*
1de703da MD	30	* $FreeBSD: src/libexec/rpc.sprayd/sprayd.c,v 1.5 1999/08/28 00:09:59 peter Exp $
984263bc MD	31	*/
984263bc MD	32
984263bc MD	33	#include <rpc/rpc.h>
	34	#include <rpc/pmap_clnt.h>
	35	#include <rpcsvc/spray.h>
	36	#include <signal.h>
	37	#include <stdio.h>
	38	#include <stdlib.h>
	39	#include <sys/time.h>
	40	#include <sys/socket.h>
	41	#include <syslog.h>
	42	#include <unistd.h>
	43
3eefb696	44	static void spray_service (struct svc_req , SVCXPRT );
984263bc MD	45
	46	static int from_inetd = 1;
	47
	48	#define timersub(tvp, uvp, vvp) \
	49	do { \
	50	(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
	51	(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
	52	if ((vvp)->tv_usec < 0) { \
	53	(vvp)->tv_sec--; \
	54	(vvp)->tv_usec += 1000000; \
	55	} \
	56	} while (0)
	57
	58	#define TIMEOUT 120
	59
	60	void
89a89091	61	cleanup(int sig)
984263bc MD	62	{
	63	(void) pmap_unset(SPRAYPROG, SPRAYVERS);
	64	exit(0);
	65	}
	66
	67	void
89a89091	68	die(int sig)
984263bc MD	69	{
	70	exit(0);
	71	}
	72
	73	int
89a89091	74	main(int argc, char *argv[])
984263bc MD	75	{
	76	SVCXPRT *transp;
	77	int sock = 0;
	78	int proto = 0;
	79	struct sockaddr_in from;
	80	int fromlen;
	81
	82	/*
	83	* See if inetd started us
	84	*/
	85	fromlen = sizeof(from);
	86	if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
	87	from_inetd = 0;
	88	sock = RPC_ANYSOCK;
	89	proto = IPPROTO_UDP;
	90	}
	91
	92	if (!from_inetd) {
	93	daemon(0, 0);
	94
	95	(void) pmap_unset(SPRAYPROG, SPRAYVERS);
	96
	97	(void) signal(SIGINT, cleanup);
	98	(void) signal(SIGTERM, cleanup);
	99	(void) signal(SIGHUP, cleanup);
	100	} else {
	101	(void) signal(SIGALRM, die);
	102	alarm(TIMEOUT);
	103	}
	104
	105	openlog("rpc.sprayd", LOG_CONS\|LOG_PID, LOG_DAEMON);
	106
	107	transp = svcudp_create(sock);
	108	if (transp == NULL) {
	109	syslog(LOG_ERR, "cannot create udp service");
	110	return 1;
	111	}
	112	if (!svc_register(transp, SPRAYPROG, SPRAYVERS, spray_service, proto)) {
	113	syslog(LOG_ERR,
	114	"unable to register (SPRAYPROG, SPRAYVERS, %s)",
	115	proto ? "udp" : "(inetd)");
	116	return 1;
	117	}
	118
	119	svc_run();
	120	syslog(LOG_ERR, "svc_run returned");
	121	return 1;
	122	}
	123
	124
	125	static void
89a89091	126	spray_service(struct svc_req rqstp, SVCXPRT transp)
984263bc MD	127	{
	128	static spraycumul scum;
	129	static struct timeval clear, get;
	130
	131	switch (rqstp->rq_proc) {
	132	case SPRAYPROC_CLEAR:
	133	scum.counter = 0;
	134	(void) gettimeofday(&clear, 0);
	135	/FALLTHROUGH/
	136
	137	case NULLPROC:
6d557b73	138	(void)svc_sendreply(transp, (xdrproc_t)xdr_void, NULL);
984263bc MD	139	return;
	140
	141	case SPRAYPROC_SPRAY:
	142	scum.counter++;
	143	return;
	144
	145	case SPRAYPROC_GET:
	146	(void) gettimeofday(&get, 0);
	147	timersub(&get, &clear, &get);
	148	scum.clock.sec = get.tv_sec;
	149	scum.clock.usec = get.tv_usec;
	150	break;
	151
	152	default:
	153	svcerr_noproc(transp);
	154	return;
	155	}
	156
6d557b73	157	if (!svc_sendreply(transp, (xdrproc_t)xdr_spraycumul, &scum)) {
984263bc MD	158	svcerr_systemerr(transp);
	159	syslog(LOG_ERR, "bad svc_sendreply");
	160	}
	161	}