[dragonfly.git] / usr.bin / rup / rup.c

/*-
 * Copyright (c) 1993, John Brezak
 * 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 the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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/usr.bin/rup/rup.c,v 1.11.2.2 2001/07/02 23:43:04 mikeh Exp $
 * $DragonFly: src/usr.bin/rup/rup.c,v 1.5 2005/08/04 18:21:25 liamfoy Exp $
 */
#include <sys/param.h>
#include <sys/socket.h>

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

#include <err.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>

#define HOST_WIDTH 15

struct host_list {
	struct host_list *next;
	struct in_addr addr;
} *hosts;

static int
search_host(struct in_addr addr)
{
	struct host_list *hp;

	if (hosts == NULL)
		return(0);

	for (hp = hosts; hp != NULL; hp = hp->next) {
		if (hp->addr.s_addr == addr.s_addr)
			return(1);
	}
	return(0);
}

static void
remember_host(struct in_addr addr)
{
	struct host_list *hp;

	if ((hp = malloc(sizeof(struct host_list))) == NULL)
		err(1, "malloc failed");
	hp->addr.s_addr = addr.s_addr;
	hp->next = hosts;
	hosts = hp;
}

static int
rstat_reply(char *replyp, struct sockaddr_in *raddrp)
{
	struct tm *tmp_time;
	struct tm host_time;
	struct tm host_uptime;
	char days_buf[16];
	char hours_buf[16];
	struct hostent *hp;
	char *host;
	statstime *host_stat = (statstime *)replyp;

	if (search_host(raddrp->sin_addr))
		return(0);

	hp = gethostbyaddr(&raddrp->sin_addr.s_addr, sizeof(struct in_addr),
			   AF_INET);
	if (hp)
		host = hp->h_name;
	else
		host = inet_ntoa(raddrp->sin_addr);

	/* truncate hostname to fit nicely into field */
	if (strlen(host) > HOST_WIDTH)
		host[HOST_WIDTH] = '\0';

	printf("%-*s\t", HOST_WIDTH, host);

	tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec);
	host_time = *tmp_time;

	host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec;

	tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec);
	host_uptime = *tmp_time;

	#define updays (host_stat->curtime.tv_sec  / 86400)
	if (host_uptime.tm_yday != 0)
		snprintf(days_buf, sizeof days_buf, "%3d day%s, ", updays,
			(updays > 1) ? "s" : "");
	else
		days_buf[0] = '\0';

	if (host_uptime.tm_hour != 0)
		snprintf(hours_buf, sizeof hours_buf, "%2d:%02d, ",
			host_uptime.tm_hour, host_uptime.tm_min);
	else if (host_uptime.tm_min != 0)
		snprintf(hours_buf, sizeof hours_buf, "%2d mins, ",
			 host_uptime.tm_min);
	else if (host_stat->curtime.tv_sec < 60)
		snprintf(hours_buf, sizeof hours_buf, "%2d secs, ",
			 host_uptime.tm_sec);
	else
		hours_buf[0] = '\0';

	printf(" %2d:%02d%cm  up %9.9s%9.9s load average: %.2f %.2f %.2f\n",
		(host_time.tm_hour % 12) ? host_time.tm_hour % 12 : 12,
		host_time.tm_min,
		(host_time.tm_hour >= 12) ? 'p' : 'a',
		days_buf,
		hours_buf,
		(double)host_stat->avenrun[0]/FSCALE,
		(double)host_stat->avenrun[1]/FSCALE,
		(double)host_stat->avenrun[2]/FSCALE);

	remember_host(raddrp->sin_addr);
	return(0);
}

static int
onehost(const char *host)
{
	CLIENT *rstat_clnt;
	statstime host_stat;
	struct sockaddr_in addr;
	struct hostent *hp;
	struct timeval tv;

	hp = gethostbyname(host);
	if (hp == NULL) {
		herror("rup");
		return(1);
	}

	rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp");
	if (rstat_clnt == NULL) {
		clnt_pcreateerror(host);
		return(1);
	}

	bzero(&host_stat, sizeof(host_stat));
	tv.tv_sec = 15;	/* XXX ??? */
	tv.tv_usec = 0;
	if (clnt_call(rstat_clnt, RSTATPROC_STATS, xdr_void, NULL, (xdrproc_t)xdr_statstime, &host_stat, tv) != RPC_SUCCESS) {
		clnt_perror(rstat_clnt, host);
		clnt_destroy(rstat_clnt);
		return(1);
	}

	addr.sin_addr.s_addr = *(int *)hp->h_addr;
	rstat_reply((char *)&host_stat, &addr);
	clnt_destroy(rstat_clnt);
	return (0);
}

static void
allhosts(void)
{
	statstime host_stat;
	enum clnt_stat clnt_stat;

	clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS,
				   xdr_void, NULL,
				   (xdrproc_t)xdr_statstime, (char *)&host_stat, rstat_reply);
	if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT)
		errx(1, "%s", clnt_sperrno(clnt_stat));
}

static void
usage(void)
{
	fprintf(stderr, "usage: rup [hosts ...]\n");
	exit(1);
}

int
main(int argc, char *argv[])
{
	int ch, retval;

	retval = 0;
	while ((ch = getopt(argc, argv, "")) != -1)
		switch (ch) {
		default:
			usage();
			/*NOTREACHED*/
		}

	setlinebuf(stdout);
	if (argc == optind)
		allhosts();
	else {
		for (; optind < argc; optind++)
			retval += onehost(argv[optind]);
	}
	exit(retval ? 1 : 0);
}
Commit	Line	Data
984263bc MD	1	/*-
	2	* Copyright (c) 1993, John Brezak
	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 the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
1de703da MD	32	*
1de703da MD	33	* $FreeBSD: src/usr.bin/rup/rup.c,v 1.11.2.2 2001/07/02 23:43:04 mikeh Exp $
fb4ea457	34	* $DragonFly: src/usr.bin/rup/rup.c,v 1.5 2005/08/04 18:21:25 liamfoy Exp $
984263bc	35	*/
984263bc MD	36	#include <sys/param.h>
984263bc MD	37	#include <sys/socket.h>
71e2da83 LF	38
71e2da83 LF	39	#include <arpa/inet.h>
984263bc MD	40	#include <rpc/rpc.h>
984263bc MD	41	#include <rpc/pmap_clnt.h>
984263bc MD	42	#undef FSHIFT /* Use protocol's shift and scale values */
	43	#undef FSCALE
	44	#include <rpcsvc/rstat.h>
	45
71e2da83 LF	46	#include <err.h>
	47	#include <netdb.h>
	48	#include <stdio.h>
	49	#include <stdlib.h>
	50	#include <string.h>
	51	#include <time.h>
	52	#include <unistd.h>
	53
984263bc MD	54	#define HOST_WIDTH 15
	55
	56	struct host_list {
	57	struct host_list *next;
	58	struct in_addr addr;
	59	} *hosts;
	60
2ffa3c11 JS	61	static int
2ffa3c11 JS	62	search_host(struct in_addr addr)
984263bc MD	63	{
	64	struct host_list *hp;
	65
2ffa3c11	66	if (hosts == NULL)
984263bc MD	67	return(0);
	68
	69	for (hp = hosts; hp != NULL; hp = hp->next) {
	70	if (hp->addr.s_addr == addr.s_addr)
	71	return(1);
	72	}
	73	return(0);
	74	}
	75
2ffa3c11 JS	76	static void
2ffa3c11 JS	77	remember_host(struct in_addr addr)
984263bc MD	78	{
	79	struct host_list *hp;
	80
2ffa3c11 JS	81	if ((hp = malloc(sizeof(struct host_list))) == NULL)
2ffa3c11 JS	82	err(1, "malloc failed");
984263bc MD	83	hp->addr.s_addr = addr.s_addr;
	84	hp->next = hosts;
	85	hosts = hp;
	86	}
	87
2ffa3c11	88	static int
984263bc MD	89	rstat_reply(char replyp, struct sockaddr_in raddrp)
	90	{
	91	struct tm *tmp_time;
	92	struct tm host_time;
	93	struct tm host_uptime;
	94	char days_buf[16];
	95	char hours_buf[16];
	96	struct hostent *hp;
	97	char *host;
	98	statstime host_stat = (statstime )replyp;
	99
	100	if (search_host(raddrp->sin_addr))
	101	return(0);
	102
15b85273 SW	103	hp = gethostbyaddr(&raddrp->sin_addr.s_addr, sizeof(struct in_addr),
15b85273 SW	104	AF_INET);
984263bc MD	105	if (hp)
	106	host = hp->h_name;
	107	else
	108	host = inet_ntoa(raddrp->sin_addr);
	109
	110	/* truncate hostname to fit nicely into field */
	111	if (strlen(host) > HOST_WIDTH)
	112	host[HOST_WIDTH] = '\0';
	113
	114	printf("%-*s\t", HOST_WIDTH, host);
	115
	116	tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec);
	117	host_time = *tmp_time;
	118
	119	host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec;
	120
	121	tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec);
	122	host_uptime = *tmp_time;
	123
	124	#define updays (host_stat->curtime.tv_sec / 86400)
	125	if (host_uptime.tm_yday != 0)
2ffa3c11	126	snprintf(days_buf, sizeof days_buf, "%3d day%s, ", updays,
984263bc MD	127	(updays > 1) ? "s" : "");
	128	else
	129	days_buf[0] = '\0';
	130
	131	if (host_uptime.tm_hour != 0)
2ffa3c11	132	snprintf(hours_buf, sizeof hours_buf, "%2d:%02d, ",
984263bc	133	host_uptime.tm_hour, host_uptime.tm_min);
2ffa3c11 JS	134	else if (host_uptime.tm_min != 0)
	135	snprintf(hours_buf, sizeof hours_buf, "%2d mins, ",
	136	host_uptime.tm_min);
	137	else if (host_stat->curtime.tv_sec < 60)
	138	snprintf(hours_buf, sizeof hours_buf, "%2d secs, ",
	139	host_uptime.tm_sec);
984263bc	140	else
2ffa3c11	141	hours_buf[0] = '\0';
984263bc MD	142
	143	printf(" %2d:%02d%cm up %9.9s%9.9s load average: %.2f %.2f %.2f\n",
	144	(host_time.tm_hour % 12) ? host_time.tm_hour % 12 : 12,
	145	host_time.tm_min,
	146	(host_time.tm_hour >= 12) ? 'p' : 'a',
	147	days_buf,
	148	hours_buf,
	149	(double)host_stat->avenrun[0]/FSCALE,
	150	(double)host_stat->avenrun[1]/FSCALE,
	151	(double)host_stat->avenrun[2]/FSCALE);
	152
	153	remember_host(raddrp->sin_addr);
	154	return(0);
	155	}
	156
2ffa3c11	157	static int
71e2da83	158	onehost(const char *host)
984263bc MD	159	{
	160	CLIENT *rstat_clnt;
	161	statstime host_stat;
	162	struct sockaddr_in addr;
	163	struct hostent *hp;
	164	struct timeval tv;
	165
	166	hp = gethostbyname(host);
	167	if (hp == NULL) {
2ffa3c11	168	herror("rup");
fb4ea457	169	return(1);
984263bc MD	170	}
	171
	172	rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp");
	173	if (rstat_clnt == NULL) {
2ffa3c11	174	clnt_pcreateerror(host);
fb4ea457	175	return(1);
984263bc MD	176	}
984263bc MD	177
2ffa3c11	178	bzero(&host_stat, sizeof(host_stat));
984263bc MD	179	tv.tv_sec = 15; /* XXX ??? */
984263bc MD	180	tv.tv_usec = 0;
71e2da83	181	if (clnt_call(rstat_clnt, RSTATPROC_STATS, xdr_void, NULL, (xdrproc_t)xdr_statstime, &host_stat, tv) != RPC_SUCCESS) {
2ffa3c11	182	clnt_perror(rstat_clnt, host);
984263bc	183	clnt_destroy(rstat_clnt);
fb4ea457	184	return(1);
984263bc MD	185	}
	186
	187	addr.sin_addr.s_addr = (int )hp->h_addr;
	188	rstat_reply((char *)&host_stat, &addr);
	189	clnt_destroy(rstat_clnt);
	190	return (0);
	191	}
	192
2ffa3c11 JS	193	static void
2ffa3c11 JS	194	allhosts(void)
984263bc MD	195	{
	196	statstime host_stat;
	197	enum clnt_stat clnt_stat;
	198
	199	clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS,
	200	xdr_void, NULL,
71e2da83	201	(xdrproc_t)xdr_statstime, (char *)&host_stat, rstat_reply);
984263bc MD	202	if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT)
	203	errx(1, "%s", clnt_sperrno(clnt_stat));
	204	}
	205
	206	static void
2ffa3c11	207	usage(void)
984263bc MD	208	{
	209	fprintf(stderr, "usage: rup [hosts ...]\n");
	210	exit(1);
	211	}
	212
	213	int
	214	main(int argc, char *argv[])
	215	{
fb4ea457	216	int ch, retval;
984263bc	217
fb4ea457	218	retval = 0;
2ffa3c11	219	while ((ch = getopt(argc, argv, "")) != -1)
984263bc MD	220	switch (ch) {
	221	default:
	222	usage();
	223	/NOTREACHED/
	224	}
	225
	226	setlinebuf(stdout);
	227	if (argc == optind)
	228	allhosts();
	229	else {
	230	for (; optind < argc; optind++)
fb4ea457	231	retval += onehost(argv[optind]);
984263bc	232	}
fb4ea457	233	exit(retval ? 1 : 0);
984263bc	234	}