[unix-history] / libexec / rpc.rstatd / rstat_proc.c

/*
 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
 * unrestricted use provided that this legend is included on all tape
 * media and as a part of the software program in whole or part.  Users
 * may copy or modify Sun RPC without charge, but are not authorized
 * to license or distribute it to anyone else except as part of a product or
 * program developed by the user.
 *
 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
 *
 * Sun RPC is provided with no support and without any obligation on the
 * part of Sun Microsystems, Inc. to assist in its use, correction,
 * modification or enhancement.
 *
 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
 * OR ANY PART THEREOF.
 *
 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
 * or profits or other special, indirect and consequential damages, even if
 * Sun has been advised of the possibility of such damages.
 *
 * Sun Microsystems, Inc.
 * 2550 Garcia Avenue
 * Mountain View, California  94043
 */
#ifndef lint
/*static char sccsid[] = "from: @(#)rpc.rstatd.c 1.1 86/09/25 Copyr 1984 Sun Micro";*/
/*static char sccsid[] = "from: @(#)rstat_proc.c	2.2 88/08/01 4.0 RPCSRC";*/
static char rcsid[] = "$Id: rstat_proc.c,v 1.4 1993/09/23 18:42:39 jtc Exp $";
#endif

/*
 * rstat service:  built with rstat.x and derived from rpc.rstatd.c
 *
 * Copyright (c) 1984 by Sun Microsystems, Inc.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <rpc/rpc.h>
#include <sys/socket.h>
#include <nlist.h>
#include <syslog.h>
#include <sys/errno.h>
#include <sys/param.h>
#ifdef BSD
#include <sys/vmmeter.h>
#include <sys/dkstat.h>
#else
#include <sys/dk.h>
#endif
#include <net/if.h>

#undef FSHIFT			 /* Use protocol's shift and scale values */
#undef FSCALE
#include <rpcsvc/rstat.h>

struct nlist nl[] = {
#define	X_CPTIME	0
	{ "_cp_time" },
#define	X_SUM		1
	{ "_sum" },
#define	X_IFNET		2
	{ "_ifnet" },
#define	X_DKXFER	3
	{ "_dk_xfer" },
#define	X_BOOTTIME	4
	{ "_boottime" },
#define X_HZ		5
	{ "_hz" },
#ifdef vax
#define	X_AVENRUN	6
	{ "_avenrun" },
#endif
	"",
};
int firstifnet, numintfs;	/* chain of ethernet interfaces */
int stats_service();

extern int from_inetd;
int sincelastreq = 0;		/* number of alarms since last request */
extern int closedown;

union {
    struct stats s1;
    struct statsswtch s2;
    struct statstime s3;
} stats_all;

void updatestat();
static stat_is_init = 0;
extern int errno;

#ifndef FSCALE
#define FSCALE (1 << 8)
#endif

#ifndef BSD
/*
 * BSD has the kvm facility for getting info from the
 * kernel. If you aren't on BSD, this surfices.
 */
int kmem;

kvm_read(off, addr, size)
        unsigned long off, size;
        char *addr;
{
        int len;
	if (lseek(kmem, (long)off, 0) == -1)
                return(-1);
	return(read(kmem, addr, size));
}

kvm_nlist(nl)
        struct nlist *nl;
{
	int n = nlist("/vmunix", nl);
	if (nl[0].n_value == 0)
                return(n);

	if ((kmem = open("/dev/kmem", 0)) < 0)
                return(-1);
        return(0);
}
#endif

stat_init()
{
    stat_is_init = 1;
    setup();
    updatestat();
    (void) signal(SIGALRM, updatestat);
    alarm(1);
}

statstime *
rstatproc_stats_3()
{
    if (! stat_is_init)
        stat_init();
    sincelastreq = 0;
    return(&stats_all.s3);
}

statsswtch *
rstatproc_stats_2()
{
    if (! stat_is_init)
        stat_init();
    sincelastreq = 0;
    return(&stats_all.s2);
}

stats *
rstatproc_stats_1()
{
    if (! stat_is_init)
        stat_init();
    sincelastreq = 0;
    return(&stats_all.s1);
}

u_int *
rstatproc_havedisk_3()
{
    static u_int have;

    if (! stat_is_init)
        stat_init();
    sincelastreq = 0;
    have = havedisk();
	return(&have);
}

u_int *
rstatproc_havedisk_2()
{
    return(rstatproc_havedisk_3());
}

u_int *
rstatproc_havedisk_1()
{
    return(rstatproc_havedisk_3());
}

void
updatestat()
{
	int off, i, hz;
	struct vmmeter sum;
	struct ifnet ifnet;
	double avrun[3];
	struct timeval tm, btm;

#ifdef DEBUG
	fprintf(stderr, "entering updatestat\n");
#endif
	if (sincelastreq >= closedown) {
#ifdef DEBUG
                fprintf(stderr, "about to closedown\n");
#endif
                if (from_inetd)
                        exit(0);
                else {
                        stat_is_init = 0;
                        return;
                }
	}
	sincelastreq++;

	if (kvm_read((long)nl[X_HZ].n_value, (char *)&hz, sizeof hz) != sizeof hz) {
		syslog(LOG_ERR, "rstat: can't read hz from kmem\n");
		exit(1);
	}
 	if (kvm_read((long)nl[X_CPTIME].n_value, (char *)stats_all.s1.cp_time, sizeof (stats_all.s1.cp_time))
	    != sizeof (stats_all.s1.cp_time)) {
		syslog(LOG_ERR, "rstat: can't read cp_time from kmem\n");
		exit(1);
	}
#ifdef vax
 	if (kvm_read((long)nl[X_AVENRUN].n_value, (char *)avrun, sizeof (avrun)) != sizeof (avrun)) {
		syslog(LOG_ERR, "rstat: can't read avenrun from kmem\n");
		exit(1);
	}
#endif
#ifdef BSD
        (void)getloadavg(avrun, sizeof(avrun) / sizeof(avrun[0]));
#endif
	stats_all.s2.avenrun[0] = avrun[0] * FSCALE;
	stats_all.s2.avenrun[1] = avrun[1] * FSCALE;
	stats_all.s2.avenrun[2] = avrun[2] * FSCALE;
 	if (kvm_read((long)nl[X_BOOTTIME].n_value, (char *)&btm, sizeof (stats_all.s2.boottime))
	    != sizeof (stats_all.s2.boottime)) {
		syslog(LOG_ERR, "rstat: can't read boottime from kmem\n");
		exit(1);
	}
	stats_all.s2.boottime.tv_sec = btm.tv_sec;
	stats_all.s2.boottime.tv_usec = btm.tv_usec;


#ifdef DEBUG
	fprintf(stderr, "%d %d %d %d\n", stats_all.s1.cp_time[0],
	    stats_all.s1.cp_time[1], stats_all.s1.cp_time[2], stats_all.s1.cp_time[3]);
#endif

 	if (kvm_read((long)nl[X_SUM].n_value, (char *)&sum, sizeof sum) != sizeof sum) {
		syslog(LOG_ERR, "rstat: can't read sum from kmem\n");
		exit(1);
	}
	stats_all.s1.v_pgpgin = sum.v_pgpgin;
	stats_all.s1.v_pgpgout = sum.v_pgpgout;
	stats_all.s1.v_pswpin = sum.v_pswpin;
	stats_all.s1.v_pswpout = sum.v_pswpout;
	stats_all.s1.v_intr = sum.v_intr;
	gettimeofday(&tm, (struct timezone *) 0);
	stats_all.s1.v_intr -= hz*(tm.tv_sec - btm.tv_sec) +
	    hz*(tm.tv_usec - btm.tv_usec)/1000000;
	stats_all.s2.v_swtch = sum.v_swtch;

 	if (kvm_read((long)nl[X_DKXFER].n_value, (char *)stats_all.s1.dk_xfer, sizeof (stats_all.s1.dk_xfer))
	    != sizeof (stats_all.s1.dk_xfer)) {
		syslog(LOG_ERR, "rstat: can't read dk_xfer from kmem\n");
		exit(1);
	}

	stats_all.s1.if_ipackets = 0;
	stats_all.s1.if_opackets = 0;
	stats_all.s1.if_ierrors = 0;
	stats_all.s1.if_oerrors = 0;
	stats_all.s1.if_collisions = 0;
	for (off = firstifnet, i = 0; off && i < numintfs; i++) {
		if (kvm_read(off, (char *)&ifnet, sizeof ifnet) != sizeof ifnet) {
			syslog(LOG_ERR, "rstat: can't read ifnet from kmem\n");
			exit(1);
		}
		stats_all.s1.if_ipackets += ifnet.if_ipackets;
		stats_all.s1.if_opackets += ifnet.if_opackets;
		stats_all.s1.if_ierrors += ifnet.if_ierrors;
		stats_all.s1.if_oerrors += ifnet.if_oerrors;
		stats_all.s1.if_collisions += ifnet.if_collisions;
		off = (int) ifnet.if_next;
	}
	gettimeofday((struct timeval *)&stats_all.s3.curtime,
		(struct timezone *) 0);
	alarm(1);
}

setup()
{
	struct ifnet ifnet;
	int off;

	if (kvm_nlist(nl) != 0) {
		syslog(LOG_ERR, "rstatd: Can't get namelist.");
		exit (1);
        }

	if (kvm_read((long)nl[X_IFNET].n_value, &firstifnet,
                     sizeof(int)) != sizeof(int))  {
		syslog(LOG_ERR, "rstat: can't read firstifnet from kmem\n");
		exit(1);
        }

	numintfs = 0;
	for (off = firstifnet; off;) {
		if (kvm_read(off, (char *)&ifnet, sizeof ifnet) != sizeof ifnet) {
			syslog(LOG_ERR, "rstat: can't read ifnet from kmem\n");
			exit(1);
		}
		numintfs++;
		off = (int) ifnet.if_next;
	}
}

/*
 * returns true if have a disk
 */
havedisk()
{
	int i, cnt;
	long  xfer[DK_NDRIVE];

	if (kvm_nlist(nl) != 0) {
		syslog(LOG_ERR, "rstatd: Can't get namelist.");
		exit (1);
        }

	if (kvm_read((long)nl[X_DKXFER].n_value, (char *)xfer, sizeof xfer)!= sizeof xfer) {
		syslog(LOG_ERR, "rstat: can't read kmem\n");
		exit(1);
	}
	cnt = 0;
	for (i=0; i < DK_NDRIVE; i++)
		cnt += xfer[i];
	return (cnt != 0);
}

void
rstat_service(rqstp, transp)
	struct svc_req *rqstp;
	SVCXPRT *transp;
{
	union {
		int fill;
	} argument;
	char *result;
	bool_t (*xdr_argument)(), (*xdr_result)();
	char *(*local)();

	switch (rqstp->rq_proc) {
	case NULLPROC:
		(void)svc_sendreply(transp, xdr_void, (char *)NULL);
		goto leave;

	case RSTATPROC_STATS:
		xdr_argument = xdr_void;
		xdr_result = xdr_statstime;
                switch (rqstp->rq_vers) {
                case RSTATVERS_ORIG:
                        local = (char *(*)()) rstatproc_stats_1;
                        break;
                case RSTATVERS_SWTCH:
                        local = (char *(*)()) rstatproc_stats_2;
                        break;
                case RSTATVERS_TIME:
                        local = (char *(*)()) rstatproc_stats_3;
                        break;
                default:
                        svcerr_progvers(transp, RSTATVERS_ORIG, RSTATVERS_TIME);
                        goto leave;
                        /*NOTREACHED*/
                }
		break;

	case RSTATPROC_HAVEDISK:
		xdr_argument = xdr_void;
		xdr_result = xdr_u_int;
                switch (rqstp->rq_vers) {
                case RSTATVERS_ORIG:
                        local = (char *(*)()) rstatproc_havedisk_1;
                        break;
                case RSTATVERS_SWTCH:
                        local = (char *(*)()) rstatproc_havedisk_2;
                        break;
                case RSTATVERS_TIME:
                        local = (char *(*)()) rstatproc_havedisk_3;
                        break;
                default:
                        svcerr_progvers(transp, RSTATVERS_ORIG, RSTATVERS_TIME);
                        goto leave;
                        /*NOTREACHED*/
                }
		break;

	default:
		svcerr_noproc(transp);
		goto leave;
	}
	bzero((char *)&argument, sizeof(argument));
	if (!svc_getargs(transp, xdr_argument, &argument)) {
		svcerr_decode(transp);
		goto leave;
	}
	result = (*local)(&argument, rqstp);
	if (result != NULL && !svc_sendreply(transp, xdr_result, result)) {
		svcerr_systemerr(transp);
	}
	if (!svc_freeargs(transp, xdr_argument, &argument)) {
		(void)fprintf(stderr, "unable to free arguments\n");
		exit(1);
	}
leave:
        if (from_inetd)
                exit(0);
}
Commit	Line	Data
43b57156 C	1	/*
	2	* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
	3	* unrestricted use provided that this legend is included on all tape
	4	* media and as a part of the software program in whole or part. Users
	5	* may copy or modify Sun RPC without charge, but are not authorized
	6	* to license or distribute it to anyone else except as part of a product or
	7	* program developed by the user.
	8	*
	9	* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
	10	* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
	11	* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
	12	*
	13	* Sun RPC is provided with no support and without any obligation on the
	14	* part of Sun Microsystems, Inc. to assist in its use, correction,
	15	* modification or enhancement.
	16	*
	17	* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
	18	* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
	19	* OR ANY PART THEREOF.
	20	*
	21	* In no event will Sun Microsystems, Inc. be liable for any lost revenue
	22	* or profits or other special, indirect and consequential damages, even if
	23	* Sun has been advised of the possibility of such damages.
	24	*
	25	* Sun Microsystems, Inc.
	26	* 2550 Garcia Avenue
	27	* Mountain View, California 94043
	28	*/
	29	#ifndef lint
	30	/static char sccsid[] = "from: @(#)rpc.rstatd.c 1.1 86/09/25 Copyr 1984 Sun Micro";/
	31	/static char sccsid[] = "from: @(#)rstat_proc.c 2.2 88/08/01 4.0 RPCSRC";/
90ba5b2c	32	static char rcsid[] = "$Id: rstat_proc.c,v 1.4 1993/09/23 18:42:39 jtc Exp $";
43b57156 C	33	#endif
	34
	35	/*
	36	* rstat service: built with rstat.x and derived from rpc.rstatd.c
	37	*
	38	* Copyright (c) 1984 by Sun Microsystems, Inc.
	39	*/
	40
43b57156	41	#include <stdio.h>
90ba5b2c C	42	#include <stdlib.h>
	43	#include <string.h>
	44	#include <signal.h>
43b57156 C	45	#include <rpc/rpc.h>
	46	#include <sys/socket.h>
	47	#include <nlist.h>
	48	#include <syslog.h>
	49	#include <sys/errno.h>
	50	#include <sys/param.h>
	51	#ifdef BSD
	52	#include <sys/vmmeter.h>
	53	#include <sys/dkstat.h>
	54	#else
	55	#include <sys/dk.h>
	56	#endif
	57	#include <net/if.h>
90ba5b2c C	58
	59	#undef FSHIFT /* Use protocol's shift and scale values */
	60	#undef FSCALE
43b57156 C	61	#include <rpcsvc/rstat.h>
	62
	63	struct nlist nl[] = {
	64	#define X_CPTIME 0
	65	{ "_cp_time" },
	66	#define X_SUM 1
	67	{ "_sum" },
	68	#define X_IFNET 2
	69	{ "_ifnet" },
	70	#define X_DKXFER 3
	71	{ "_dk_xfer" },
	72	#define X_BOOTTIME 4
	73	{ "_boottime" },
	74	#define X_HZ 5
	75	{ "_hz" },
	76	#ifdef vax
	77	#define X_AVENRUN 6
	78	{ "_avenrun" },
	79	#endif
	80	"",
	81	};
	82	int firstifnet, numintfs; /* chain of ethernet interfaces */
	83	int stats_service();
	84
	85	extern int from_inetd;
	86	int sincelastreq = 0; /* number of alarms since last request */
	87	extern int closedown;
	88
	89	union {
	90	struct stats s1;
	91	struct statsswtch s2;
	92	struct statstime s3;
	93	} stats_all;
	94
	95	void updatestat();
	96	static stat_is_init = 0;
	97	extern int errno;
	98
	99	#ifndef FSCALE
	100	#define FSCALE (1 << 8)
	101	#endif
	102
	103	#ifndef BSD
	104	/*
	105	* BSD has the kvm facility for getting info from the
	106	* kernel. If you aren't on BSD, this surfices.
	107	*/
	108	int kmem;
	109
	110	kvm_read(off, addr, size)
	111	unsigned long off, size;
	112	char *addr;
	113	{
	114	int len;
	115	if (lseek(kmem, (long)off, 0) == -1)
	116	return(-1);
	117	return(read(kmem, addr, size));
	118	}
	119
	120	kvm_nlist(nl)
	121	struct nlist *nl;
	122	{
	123	int n = nlist("/vmunix", nl);
	124	if (nl[0].n_value == 0)
125	return(n);
126
127	if ((kmem = open("/dev/kmem", 0)) < 0)
128	return(-1);
129	return(0);
130	}
131	#endif
132
133	stat_init()
134	{
135	stat_is_init = 1;
136	setup();
137	updatestat();
138	(void) signal(SIGALRM, updatestat);
139	alarm(1);
140	}
141
142	statstime *
143	rstatproc_stats_3()
144	{
145	if (! stat_is_init)
146	stat_init();
147	sincelastreq = 0;
148	return(&stats_all.s3);
149	}
150
151	statsswtch *
152	rstatproc_stats_2()
153	{
154	if (! stat_is_init)
155	stat_init();
156	sincelastreq = 0;
157	return(&stats_all.s2);
158	}
159
160	stats *
161	rstatproc_stats_1()
162	{
163	if (! stat_is_init)
164	stat_init();
165	sincelastreq = 0;
166	return(&stats_all.s1);
167	}
168
169	u_int *
170	rstatproc_havedisk_3()
171	{
172	static u_int have;
173
174	if (! stat_is_init)
175	stat_init();
176	sincelastreq = 0;
177	have = havedisk();
178	return(&have);
179	}
180
181	u_int *
182	rstatproc_havedisk_2()
183	{
184	return(rstatproc_havedisk_3());
185	}
186
187	u_int *
188	rstatproc_havedisk_1()
189	{
190	return(rstatproc_havedisk_3());
191	}
192
193	void
194	updatestat()
195	{
196	int off, i, hz;
197	struct vmmeter sum;
198	struct ifnet ifnet;
199	double avrun[3];
200	struct timeval tm, btm;
201
202	#ifdef DEBUG
203	fprintf(stderr, "entering updatestat\n");
204	#endif
205	if (sincelastreq >= closedown) {
206	#ifdef DEBUG
207	fprintf(stderr, "about to closedown\n");
208	#endif
209	if (from_inetd)
210	exit(0);
211	else {
212	stat_is_init = 0;
213	return;
214	}
215	}
216	sincelastreq++;
217
218	if (kvm_read((long)nl[X_HZ].n_value, (char *)&hz, sizeof hz) != sizeof hz) {
219	syslog(LOG_ERR, "rstat: can't read hz from kmem\n");
220	exit(1);
221	}
222	if (kvm_read((long)nl[X_CPTIME].n_value, (char *)stats_all.s1.cp_time, sizeof (stats_all.s1.cp_time))
223	!= sizeof (stats_all.s1.cp_time)) {
224	syslog(LOG_ERR, "rstat: can't read cp_time from kmem\n");
225	exit(1);
226	}
227	#ifdef vax
228	if (kvm_read((long)nl[X_AVENRUN].n_value, (char *)avrun, sizeof (avrun)) != sizeof (avrun)) {
229	syslog(LOG_ERR, "rstat: can't read avenrun from kmem\n");
230	exit(1);
231	}
232	#endif
233	#ifdef BSD
234	(void)getloadavg(avrun, sizeof(avrun) / sizeof(avrun[0]));
235	#endif
236	stats_all.s2.avenrun[0] = avrun[0] * FSCALE;
237	stats_all.s2.avenrun[1] = avrun[1] * FSCALE;
238	stats_all.s2.avenrun[2] = avrun[2] * FSCALE;
239	if (kvm_read((long)nl[X_BOOTTIME].n_value, (char *)&btm, sizeof (stats_all.s2.boottime))
240	!= sizeof (stats_all.s2.boottime)) {
241	syslog(LOG_ERR, "rstat: can't read boottime from kmem\n");
242	exit(1);
243	}
244	stats_all.s2.boottime.tv_sec = btm.tv_sec;
245	stats_all.s2.boottime.tv_usec = btm.tv_usec;
246
247
248	#ifdef DEBUG
249	fprintf(stderr, "%d %d %d %d\n", stats_all.s1.cp_time[0],
250	stats_all.s1.cp_time[1], stats_all.s1.cp_time[2], stats_all.s1.cp_time[3]);
251	#endif
252
253	if (kvm_read((long)nl[X_SUM].n_value, (char *)&sum, sizeof sum) != sizeof sum) {
254	syslog(LOG_ERR, "rstat: can't read sum from kmem\n");
255	exit(1);
256	}
257	stats_all.s1.v_pgpgin = sum.v_pgpgin;
258	stats_all.s1.v_pgpgout = sum.v_pgpgout;
259	stats_all.s1.v_pswpin = sum.v_pswpin;
260	stats_all.s1.v_pswpout = sum.v_pswpout;
261	stats_all.s1.v_intr = sum.v_intr;
262	gettimeofday(&tm, (struct timezone *) 0);
263	stats_all.s1.v_intr -= hz*(tm.tv_sec - btm.tv_sec) +
264	hz*(tm.tv_usec - btm.tv_usec)/1000000;
265	stats_all.s2.v_swtch = sum.v_swtch;
266
267	if (kvm_read((long)nl[X_DKXFER].n_value, (char *)stats_all.s1.dk_xfer, sizeof (stats_all.s1.dk_xfer))
268	!= sizeof (stats_all.s1.dk_xfer)) {
269	syslog(LOG_ERR, "rstat: can't read dk_xfer from kmem\n");
270	exit(1);
271	}
272
273	stats_all.s1.if_ipackets = 0;
274	stats_all.s1.if_opackets = 0;
275	stats_all.s1.if_ierrors = 0;
276	stats_all.s1.if_oerrors = 0;
277	stats_all.s1.if_collisions = 0;
278	for (off = firstifnet, i = 0; off && i < numintfs; i++) {
279	if (kvm_read(off, (char *)&ifnet, sizeof ifnet) != sizeof ifnet) {
280	syslog(LOG_ERR, "rstat: can't read ifnet from kmem\n");
281	exit(1);
282	}
283	stats_all.s1.if_ipackets += ifnet.if_ipackets;
284	stats_all.s1.if_opackets += ifnet.if_opackets;
285	stats_all.s1.if_ierrors += ifnet.if_ierrors;
286	stats_all.s1.if_oerrors += ifnet.if_oerrors;
287	stats_all.s1.if_collisions += ifnet.if_collisions;
288	off = (int) ifnet.if_next;
289	}
290	gettimeofday((struct timeval *)&stats_all.s3.curtime,
291	(struct timezone *) 0);
292	alarm(1);
293	}
294
295	setup()
296	{
297	struct ifnet ifnet;
298	int off;
299
300	if (kvm_nlist(nl) != 0) {
301	syslog(LOG_ERR, "rstatd: Can't get namelist.");
302	exit (1);
303	}
304
305	if (kvm_read((long)nl[X_IFNET].n_value, &firstifnet,
306	sizeof(int)) != sizeof(int)) {
307	syslog(LOG_ERR, "rstat: can't read firstifnet from kmem\n");
308	exit(1);
309	}
310
311	numintfs = 0;
312	for (off = firstifnet; off;) {
313	if (kvm_read(off, (char *)&ifnet, sizeof ifnet) != sizeof ifnet) {
314	syslog(LOG_ERR, "rstat: can't read ifnet from kmem\n");
315	exit(1);
316	}
317	numintfs++;
318	off = (int) ifnet.if_next;
319	}
320	}
321
322	/*
323	* returns true if have a disk
324	*/
325	havedisk()
326	{
327	int i, cnt;
328	long xfer[DK_NDRIVE];
329
330	if (kvm_nlist(nl) != 0) {
331	syslog(LOG_ERR, "rstatd: Can't get namelist.");
332	exit (1);
333	}
334
335	if (kvm_read((long)nl[X_DKXFER].n_value, (char *)xfer, sizeof xfer)!= sizeof xfer) {
336	syslog(LOG_ERR, "rstat: can't read kmem\n");
337	exit(1);
338	}
339	cnt = 0;
340	for (i=0; i < DK_NDRIVE; i++)
341	cnt += xfer[i];
342	return (cnt != 0);
343	}
344
345	void
346	rstat_service(rqstp, transp)
347	struct svc_req *rqstp;
348	SVCXPRT *transp;
349	{
350	union {
351	int fill;
352	} argument;
353	char *result;
354	bool_t (xdr_argument)(), (xdr_result)();
355	char (local)();
356
357	switch (rqstp->rq_proc) {
358	case NULLPROC:
359	(void)svc_sendreply(transp, xdr_void, (char *)NULL);
360	goto leave;
361
362	case RSTATPROC_STATS:
363	xdr_argument = xdr_void;
364	xdr_result = xdr_statstime;
365	switch (rqstp->rq_vers) {
366	case RSTATVERS_ORIG:
367	local = (char ()()) rstatproc_stats_1;
368	break;
369	case RSTATVERS_SWTCH:
370	local = (char ()()) rstatproc_stats_2;
371	break;
372	case RSTATVERS_TIME:
373	local = (char ()()) rstatproc_stats_3;
374	break;
375	default:
376	svcerr_progvers(transp, RSTATVERS_ORIG, RSTATVERS_TIME);
377	goto leave;
378	/NOTREACHED/
379	}
380	break;
381
382	case RSTATPROC_HAVEDISK:
383	xdr_argument = xdr_void;
384	xdr_result = xdr_u_int;
385	switch (rqstp->rq_vers) {
386	case RSTATVERS_ORIG:
387	local = (char ()()) rstatproc_havedisk_1;
388	break;
389	case RSTATVERS_SWTCH:
390	local = (char ()()) rstatproc_havedisk_2;
391	break;
392	case RSTATVERS_TIME:
393	local = (char ()()) rstatproc_havedisk_3;
394	break;
395	default:
396	svcerr_progvers(transp, RSTATVERS_ORIG, RSTATVERS_TIME);
397	goto leave;
398	/NOTREACHED/
399	}
400	break;
401
402	default:
403	svcerr_noproc(transp);
404	goto leave;
405	}
406	bzero((char *)&argument, sizeof(argument));
407	if (!svc_getargs(transp, xdr_argument, &argument)) {
408	svcerr_decode(transp);
409	goto leave;
410	}
411	result = (*local)(&argument, rqstp);
412	if (result != NULL && !svc_sendreply(transp, xdr_result, result)) {
413	svcerr_systemerr(transp);
414	}
415	if (!svc_freeargs(transp, xdr_argument, &argument)) {
416	(void)fprintf(stderr, "unable to free arguments\n");
417	exit(1);
418	}
419	leave:
420	if (from_inetd)
421	exit(0);
422	}