[dragonfly.git] / usr.bin / rusers / rusers.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/rusers/rusers.c,v 1.8.2.1 2001/07/02 23:43:05 mikeh Exp $
 * $DragonFly: src/usr.bin/rusers/rusers.c,v 1.4 2008/10/16 01:52:33 swildner Exp $
 */

#include <sys/types.h>
#include <sys/socket.h>
#include <rpc/rpc.h>
#include <rpc/pmap_clnt.h>
#include <rpcsvc/rnusers.h>
#include <arpa/inet.h>
#include <err.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <unistd.h>

#define MAX_INT		0x7fffffff
#define HOST_WIDTH	20
#define LINE_WIDTH	15

int longopt;
int allopt;

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

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);
}

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

	if ((hp = (struct host_list *)malloc(sizeof(struct host_list))) == NULL)
		errx(1, "no memory");
	hp->addr.s_addr = addr.s_addr;
	hp->next = hosts;
	hosts = hp;
}

int
rusers_reply(char *replyp, struct sockaddr_in *raddrp)
{
	int x, idle;
	char date[32], idle_time[64], remote[64];
	struct hostent *hp;
	utmpidlearr *up, u;	
	char *host;
	int days, hours, minutes, seconds;

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

	if (!allopt && up->utmpidlearr_len == 0)
		return (0);

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

	if (!longopt)
		printf("%-*s ", HOST_WIDTH, host);

	for (x = 0; x < up->utmpidlearr_len; x++) {
		strncpy(date,
		&(ctime((time_t *)&(up->utmpidlearr_val[x].ui_utmp.ut_time))[4]),
		    sizeof(date) - 1);

		idle = up->utmpidlearr_val[x].ui_idle;
		sprintf(idle_time, "  :%02d", idle);
		if (idle == MAX_INT)
			strcpy(idle_time, "??");
		else if (idle == 0)
			strcpy(idle_time, "");
		else {
			seconds = idle;
			days = seconds / (60 * 60 * 24);
			seconds %= (60 * 60 * 24);
			hours = seconds / (60 * 60);
			seconds %= (60 * 60);
			minutes = seconds / 60;
			seconds %= 60;
			if (idle > 60)
				sprintf(idle_time, "%d:%02d", minutes, seconds);
			if (idle >= (60 * 60))
				sprintf(idle_time, "%d:%02d:%02d",
				    hours, minutes, seconds);
			if (idle >= (24 * 60 * 60))
				sprintf(idle_time, "%d days, %d:%02d:%02d",
				    days, hours, minutes, seconds);
		}

		strncpy(remote, up->utmpidlearr_val[x].ui_utmp.ut_host,
		    sizeof(remote) - 1);
		if (strlen(remote) != 0)
			sprintf(remote, "(%.16s)",
			    up->utmpidlearr_val[x].ui_utmp.ut_host);

		if (longopt)
			printf("%-8.8s %*s:%-*.*s %-12.12s  %6s %.18s\n",
			    up->utmpidlearr_val[x].ui_utmp.ut_name,
			    HOST_WIDTH, host, LINE_WIDTH, LINE_WIDTH,
			    up->utmpidlearr_val[x].ui_utmp.ut_line, date,
			    idle_time, remote );
		else
			printf("%s ",
			    up->utmpidlearr_val[x].ui_utmp.ut_name);
	}
	if (!longopt)
		putchar('\n');

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

void
onehost(char *host)
{
	utmpidlearr up;
	CLIENT *rusers_clnt;
	struct sockaddr_in addr;
	struct hostent *hp;
	struct timeval tv;

	hp = gethostbyname(host);
	if (hp == NULL)
		errx(1, "unknown host \"%s\"", host);

	rusers_clnt = clnt_create(host, RUSERSPROG, RUSERSVERS_IDLE, "udp");
	if (rusers_clnt == NULL)
		errx(1, "%s", clnt_spcreateerror(""));

	bzero((char *)&up, sizeof(up));
	tv.tv_sec = 15;	/* XXX ?? */
	tv.tv_usec = 0;
	if (clnt_call(rusers_clnt, RUSERSPROC_NAMES, xdr_void, NULL,
	    xdr_utmpidlearr, &up, tv) != RPC_SUCCESS)
		errx(1, "%s", clnt_sperror(rusers_clnt, ""));
	memcpy(&addr.sin_addr.s_addr, hp->h_addr, sizeof(addr.sin_addr.s_addr));	
	rusers_reply((char *)&up, &addr);
	clnt_destroy(rusers_clnt);
}

void
allhosts(void)
{
	utmpidlearr up;
	enum clnt_stat clnt_stat;

	bzero((char *)&up, sizeof(up));
	clnt_stat = clnt_broadcast(RUSERSPROG, RUSERSVERS_IDLE,
	    RUSERSPROC_NAMES, xdr_void, NULL, xdr_utmpidlearr, (char *)&up,
	    rusers_reply);
	if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT)
		errx(1, "%s", clnt_sperrno(clnt_stat));
}

static void
usage(void)
{

	fprintf(stderr, "usage: rusers [-la] [hosts ...]\n");
	exit(1);
}

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

	while ((ch = getopt(argc, argv, "al")) != -1)
		switch (ch) {
		case 'a':
			allopt++;
			break;
		case 'l':
			longopt++;
			break;
		default:
			usage();
			/* NOTREACHED */
		}

	setlinebuf(stdout);
	if (argc == optind)
		allhosts();
	else {
		for (; optind < argc; optind++)
			(void)onehost(argv[optind]);
	}
	exit(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/rusers/rusers.c,v 1.8.2.1 2001/07/02 23:43:05 mikeh Exp $
815943a9	34	* $DragonFly: src/usr.bin/rusers/rusers.c,v 1.4 2008/10/16 01:52:33 swildner Exp $
984263bc MD	35	*/
984263bc MD	36
984263bc MD	37	#include <sys/types.h>
	38	#include <sys/socket.h>
	39	#include <rpc/rpc.h>
	40	#include <rpc/pmap_clnt.h>
	41	#include <rpcsvc/rnusers.h>
	42	#include <arpa/inet.h>
	43	#include <err.h>
	44	#include <netdb.h>
	45	#include <stdio.h>
	46	#include <stdlib.h>
	47	#include <strings.h>
	48	#include <unistd.h>
	49
	50	#define MAX_INT 0x7fffffff
	51	#define HOST_WIDTH 20
	52	#define LINE_WIDTH 15
	53
	54	int longopt;
	55	int allopt;
	56
	57	struct host_list {
	58	struct host_list *next;
	59	struct in_addr addr;
	60	} *hosts;
	61
	62	int
	63	search_host(struct in_addr addr)
	64	{
	65	struct host_list *hp;
	66
	67	if (hosts == NULL)
	68	return (0);
	69
	70	for (hp = hosts; hp != NULL; hp = hp->next) {
	71	if (hp->addr.s_addr == addr.s_addr)
	72	return (1);
	73	}
	74	return (0);
	75	}
	76
	77	void
	78	remember_host(struct in_addr addr)
	79	{
	80	struct host_list *hp;
	81
	82	if ((hp = (struct host_list *)malloc(sizeof(struct host_list))) == NULL)
	83	errx(1, "no memory");
	84	hp->addr.s_addr = addr.s_addr;
	85	hp->next = hosts;
	86	hosts = hp;
	87	}
	88
	89	int
	90	rusers_reply(char replyp, struct sockaddr_in raddrp)
	91	{
	92	int x, idle;
	93	char date[32], idle_time[64], remote[64];
	94	struct hostent *hp;
ca93da31	95	utmpidlearr *up, u;
984263bc MD	96	char *host;
	97	int days, hours, minutes, seconds;
	98
	99	if (search_host(raddrp->sin_addr))
	100	return (0);
	101
	102	if (!allopt && up->utmpidlearr_len == 0)
	103	return (0);
	104
15b85273 SW	105	hp = gethostbyaddr(&raddrp->sin_addr.s_addr, sizeof(struct in_addr),
15b85273 SW	106	AF_INET);
984263bc MD	107	if (hp != NULL)
	108	host = hp->h_name;
	109	else
	110	host = inet_ntoa(raddrp->sin_addr);
	111
	112	if (!longopt)
	113	printf("%-*s ", HOST_WIDTH, host);
	114
	115	for (x = 0; x < up->utmpidlearr_len; x++) {
	116	strncpy(date,
	117	&(ctime((time_t *)&(up->utmpidlearr_val[x].ui_utmp.ut_time))[4]),
	118	sizeof(date) - 1);
	119
	120	idle = up->utmpidlearr_val[x].ui_idle;
	121	sprintf(idle_time, " :%02d", idle);
	122	if (idle == MAX_INT)
	123	strcpy(idle_time, "??");
	124	else if (idle == 0)
	125	strcpy(idle_time, "");
	126	else {
	127	seconds = idle;
	128	days = seconds / (60 * 60 * 24);
	129	seconds %= (60 * 60 * 24);
	130	hours = seconds / (60 * 60);
	131	seconds %= (60 * 60);
	132	minutes = seconds / 60;
	133	seconds %= 60;
	134	if (idle > 60)
	135	sprintf(idle_time, "%d:%02d", minutes, seconds);
	136	if (idle >= (60 * 60))
	137	sprintf(idle_time, "%d:%02d:%02d",
	138	hours, minutes, seconds);
	139	if (idle >= (24 * 60 * 60))
	140	sprintf(idle_time, "%d days, %d:%02d:%02d",
	141	days, hours, minutes, seconds);
	142	}
	143
	144	strncpy(remote, up->utmpidlearr_val[x].ui_utmp.ut_host,
	145	sizeof(remote) - 1);
	146	if (strlen(remote) != 0)
	147	sprintf(remote, "(%.16s)",
	148	up->utmpidlearr_val[x].ui_utmp.ut_host);
	149
	150	if (longopt)
	151	printf("%-8.8s %s:%-.*s %-12.12s %6s %.18s\n",
	152	up->utmpidlearr_val[x].ui_utmp.ut_name,
	153	HOST_WIDTH, host, LINE_WIDTH, LINE_WIDTH,
	154	up->utmpidlearr_val[x].ui_utmp.ut_line, date,
	155	idle_time, remote );
	156	else
	157	printf("%s ",
	158	up->utmpidlearr_val[x].ui_utmp.ut_name);
	159	}
	160	if (!longopt)
	161	putchar('\n');
	162
	163	remember_host(raddrp->sin_addr);
	164	return (0);
	165	}
	166
	167	void
	168	onehost(char *host)
	169	{
	170	utmpidlearr up;
171	CLIENT *rusers_clnt;
172	struct sockaddr_in addr;
173	struct hostent *hp;
174	struct timeval tv;
175
176	hp = gethostbyname(host);
177	if (hp == NULL)
178	errx(1, "unknown host \"%s\"", host);
179
180	rusers_clnt = clnt_create(host, RUSERSPROG, RUSERSVERS_IDLE, "udp");
181	if (rusers_clnt == NULL)
182	errx(1, "%s", clnt_spcreateerror(""));
183
184	bzero((char *)&up, sizeof(up));
185	tv.tv_sec = 15; /* XXX ?? */
186	tv.tv_usec = 0;
187	if (clnt_call(rusers_clnt, RUSERSPROC_NAMES, xdr_void, NULL,
188	xdr_utmpidlearr, &up, tv) != RPC_SUCCESS)
189	errx(1, "%s", clnt_sperror(rusers_clnt, ""));
ca93da31	190	memcpy(&addr.sin_addr.s_addr, hp->h_addr, sizeof(addr.sin_addr.s_addr));
984263bc MD	191	rusers_reply((char *)&up, &addr);
	192	clnt_destroy(rusers_clnt);
	193	}
	194
	195	void
815943a9	196	allhosts(void)
984263bc MD	197	{
	198	utmpidlearr up;
	199	enum clnt_stat clnt_stat;
	200
	201	bzero((char *)&up, sizeof(up));
	202	clnt_stat = clnt_broadcast(RUSERSPROG, RUSERSVERS_IDLE,
	203	RUSERSPROC_NAMES, xdr_void, NULL, xdr_utmpidlearr, (char *)&up,
	204	rusers_reply);
	205	if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT)
	206	errx(1, "%s", clnt_sperrno(clnt_stat));
	207	}
	208
	209	static void
815943a9	210	usage(void)
984263bc MD	211	{
	212
	213	fprintf(stderr, "usage: rusers [-la] [hosts ...]\n");
	214	exit(1);
	215	}
	216
	217	int
	218	main(int argc, char *argv[])
	219	{
	220	int ch;
	221
	222	while ((ch = getopt(argc, argv, "al")) != -1)
	223	switch (ch) {
	224	case 'a':
	225	allopt++;
	226	break;
	227	case 'l':
	228	longopt++;
	229	break;
	230	default:
	231	usage();
	232	/* NOTREACHED */
	233	}
	234
	235	setlinebuf(stdout);
	236	if (argc == optind)
	237	allhosts();
	238	else {
	239	for (; optind < argc; optind++)
	240	(void)onehost(argv[optind]);
	241	}
	242	exit(0);
	243	}