246 lines
7.5 KiB
C
246 lines
7.5 KiB
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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static const char rcsid[] =
|
|
"$Id: rusers.c,v 1.5 1997/02/22 19:56:52 peter Exp $";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <sys/socket.h>
|
|
#include <err.h>
|
|
#include <netdb.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <strings.h>
|
|
#include <unistd.h>
|
|
#include <rpc/rpc.h>
|
|
#include <rpc/pmap_clnt.h>
|
|
#include <arpa/inet.h>
|
|
#include <rpcsvc/rnusers.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)
|
|
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))))
|
|
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 = (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);
|
|
}
|
|
|
|
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, ""));
|
|
addr.sin_addr.s_addr = *(int *)hp->h_addr;
|
|
rusers_reply((char *)&up, &addr);
|
|
}
|
|
|
|
void
|
|
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)
|
|
errx(1, "%s", clnt_sperrno(clnt_stat));
|
|
}
|
|
|
|
static void
|
|
usage()
|
|
{
|
|
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);
|
|
}
|