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rusers from FreeBSD 1.1.5.1

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Reviewed by:	Geoff.
Submitted by:	John Brezak
This commit is contained in:
Geoff Rehmet 1994-08-28 15:06:02 +00:00
parent a82f86e105
commit 61ce166c6c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/cvs2svn/branches/FBSD_1/; revision=2345
3 changed files with 351 additions and 0 deletions
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usr.bin/rusers/Makefile Normal file
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# $Id: Makefile,v 1.2 1993/11/10 03:47:23 smace Exp $
PROG = rusers
MAN1 = rusers.1
DPADD= ${LIBRPCSVC}
LDADD= -lrpcsvc
.include <bsd.prog.mk>

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.\" Copyright (c) 1983, 1990 The Regents of the University of California.
.\" 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.
.\"
.\" from: @(#)rusers.1 6.7 (Berkeley) 4/23/91
.\" $Id: rusers.1,v 1.1 1993/09/16 01:15:47 jtc Exp $
.\"
.Dd April 23, 1991
.Dt RUSERS 1
.Os BSD 4.2
.Sh NAME
.Nm rusers
.Nd who is logged in to machines on local network
.Sh SYNOPSIS
.Nm rusers
.Op Fl al
.Op Ar host ...
.Sh DESCRIPTION
The
.Nm rusers
command produces output similar to
.Xr who ,
but for the list of hosts or all machines on the local
network. For each host responding to the rusers query,
the hostname with the names of the users currently logged
on is printed on each line. The rusers command will wait for
one minute to catch late responders.
.Pp
The following options are available:
.Bl -tag -width indent
.It Fl a
Print all machines responding even if no one is currently logged in.
.It Fl l
Print a long format listing. This includes the user name, host name,
tty that the user is logged in to, the date and time the user
logged in, the amount of time since the user typed on the keyboard,
and the remote host they logged in from (if applicable).
.El
.Sh DIAGNOSTICS
.Bl -tag -width indent
.It rusers: RPC: Program not registered
The
.Xr rpc.rusersd 8
daemon has not been started on the remote host.
.It rusers: RPC: Timed out
A communication error occurred. Either the network is
excessively congested, or the
.Xr rpc.rusersd 8
daemon has terminated on the remote host.
.It rusers: RPC: Port mapper failure - RPC: Timed out
The remote host is not running the portmapper (see
.Xr portmap 8 ),
and cannot accomodate any RPC-based services. The host may be down.
.El
.Sh SEE ALSO
.Xr portmap 8 ,
.Xr who 1 ,
.Xr rpc.rusersd 8
.Sh HISTORY
The
.Nm rusers
command
appeared in
.Em Sun-OS .
.Sh BUGS
The sorting options are not implemented.

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usr.bin/rusers/rusers.c Normal file
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/*-
* 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.
*/
#ifndef lint
static char rcsid[] = "$Id: rusers.c,v 1.1 1993/09/16 01:15:48 jtc Exp $";
#endif /* not lint */
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <netdb.h>
#include <stdio.h>
#include <strings.h>
#include <rpc/rpc.h>
#include <arpa/inet.h>
#include <rpcsvc/rnusers.h>
#define MAX_INT 0x7fffffff
#define HOST_WIDTH 20
#define LINE_WIDTH 15
char *argv0;
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)
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)))) {
fprintf(stderr, "%s: no memory.\n", argv0);
exit(1);
}
hp->addr.s_addr = addr.s_addr;
hp->next = hosts;
hosts = hp;
}
rusers_reply(char *replyp, struct sockaddr_in *raddrp)
{
int x, idle;
char date[32], idle_time[64], remote[64];
struct hostent *hp;
utmpidlearr *up = (utmpidlearr *)replyp;
char *host;
int days, hours, minutes, seconds;
if (search_host(raddrp->sin_addr))
return(0);
if (!allopt && !up->utmpidlearr_len)
return(0);
hp = gethostbyaddr((char *)&raddrp->sin_addr.s_addr,
sizeof(struct in_addr), AF_INET);
if (hp)
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);
}
onehost(char *host)
{
utmpidlearr up;
CLIENT *rusers_clnt;
struct sockaddr_in addr;
struct hostent *hp;
hp = gethostbyname(host);
if (hp == NULL) {
fprintf(stderr, "%s: unknown host \"%s\"\n",
argv0, host);
exit(1);
}
rusers_clnt = clnt_create(host, RUSERSPROG, RUSERSVERS_IDLE, "udp");
if (rusers_clnt == NULL) {
clnt_pcreateerror(argv0);
exit(1);
}
bzero((char *)&up, sizeof(up));
if (clnt_call(rusers_clnt, RUSERSPROC_NAMES, xdr_void, NULL, xdr_utmpidlearr, &up, NULL) != RPC_SUCCESS) {
clnt_perror(rusers_clnt, argv0);
exit(1);
}
addr.sin_addr.s_addr = *(int *)hp->h_addr;
rusers_reply((char *)&up, &addr);
}
allhosts()
{
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, &up, rusers_reply);
if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT) {
fprintf(stderr, "%s: %s\n", argv0, clnt_sperrno(clnt_stat));
exit(1);
}
}
usage()
{
fprintf(stderr, "Usage: %s [-la] [hosts ...]\n", argv0);
exit(1);
}
main(int argc, char *argv[])
{
int ch;
extern int optind;
if (!(argv0 = rindex(argv[0], '/')))
argv0 = argv[0];
else
argv0++;
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);
}