Because strings are now null-terminated, I've decided to just use an array of utmpx structures, instead of the separated strings. This means we just copy the entire utmpx structure and point to the strings within the structures directly.
340 lines
7.9 KiB
C
340 lines
7.9 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[] =
|
|
"$FreeBSD$";
|
|
#endif /* not lint */
|
|
|
|
#ifdef DEBUG
|
|
#include <errno.h>
|
|
#endif
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <sys/param.h>
|
|
#include <sys/stat.h>
|
|
#include <stdlib.h>
|
|
#include <syslog.h>
|
|
#define _ULOG_POSIX_NAMES
|
|
#include <ulog.h>
|
|
#ifdef XIDLE
|
|
#include <setjmp.h>
|
|
#include <X11/Xlib.h>
|
|
#include <X11/extensions/xidle.h>
|
|
#endif
|
|
#include <rpcsvc/rnusers.h>
|
|
|
|
#ifndef _PATH_DEV
|
|
#define _PATH_DEV "/dev"
|
|
#endif
|
|
|
|
static utmpidle utmp_idle[MAXUSERS];
|
|
static utmp old_utmp[MAXUSERS];
|
|
static struct utmpx utmp_list[MAXUSERS];
|
|
|
|
extern int from_inetd;
|
|
|
|
void rusers_service(struct svc_req *, SVCXPRT *);
|
|
|
|
#ifdef XIDLE
|
|
static Display *dpy;
|
|
|
|
static jmp_buf openAbort;
|
|
|
|
static void
|
|
abortOpen(void)
|
|
{
|
|
longjmp (openAbort, 1);
|
|
}
|
|
|
|
XqueryIdle(char *display)
|
|
{
|
|
int first_event, first_error;
|
|
Time IdleTime;
|
|
|
|
(void) signal (SIGALRM, abortOpen);
|
|
(void) alarm ((unsigned) 10);
|
|
if (!setjmp (openAbort)) {
|
|
if (!(dpy= XOpenDisplay(display))) {
|
|
syslog(LOG_ERR, "Cannot open display %s", display);
|
|
return(-1);
|
|
}
|
|
if (XidleQueryExtension(dpy, &first_event, &first_error)) {
|
|
if (!XGetIdleTime(dpy, &IdleTime)) {
|
|
syslog(LOG_ERR, "%s: unable to get idle time", display);
|
|
return(-1);
|
|
}
|
|
} else {
|
|
syslog(LOG_ERR, "%s: Xidle extension not loaded", display);
|
|
return(-1);
|
|
}
|
|
XCloseDisplay(dpy);
|
|
} else {
|
|
syslog(LOG_ERR, "%s: server grabbed for over 10 seconds", display);
|
|
return(-1);
|
|
}
|
|
(void) signal (SIGALRM, SIG_DFL);
|
|
(void) alarm ((unsigned) 0);
|
|
|
|
IdleTime /= 1000;
|
|
return((IdleTime + 30) / 60);
|
|
}
|
|
#endif
|
|
|
|
static u_int
|
|
getidle(const char *tty, const char *display __unused)
|
|
{
|
|
struct stat st;
|
|
char ttyname[PATH_MAX];
|
|
time_t now;
|
|
u_long idle;
|
|
|
|
/*
|
|
* If this is an X terminal or console, then try the
|
|
* XIdle extension
|
|
*/
|
|
#ifdef XIDLE
|
|
if (display && *display && (idle = XqueryIdle(display)) >= 0)
|
|
return(idle);
|
|
#endif
|
|
idle = 0;
|
|
if (*tty == 'X') {
|
|
u_long kbd_idle, mouse_idle;
|
|
#if !defined(__FreeBSD__)
|
|
kbd_idle = getidle("kbd", NULL);
|
|
#else
|
|
kbd_idle = getidle("vga", NULL);
|
|
#endif
|
|
mouse_idle = getidle("mouse", NULL);
|
|
idle = (kbd_idle < mouse_idle)?kbd_idle:mouse_idle;
|
|
} else {
|
|
sprintf(ttyname, "%s/%s", _PATH_DEV, tty);
|
|
if (stat(ttyname, &st) < 0) {
|
|
#ifdef DEBUG
|
|
printf("%s: %s\n", ttyname, strerror(errno));
|
|
#endif
|
|
return(-1);
|
|
}
|
|
time(&now);
|
|
#ifdef DEBUG
|
|
printf("%s: now=%d atime=%d\n", ttyname, now,
|
|
st.st_atime);
|
|
#endif
|
|
idle = now - st.st_atime;
|
|
idle = (idle + 30) / 60; /* secs->mins */
|
|
}
|
|
|
|
return(idle);
|
|
}
|
|
|
|
static utmpidlearr *
|
|
do_names_2(void)
|
|
{
|
|
static utmpidlearr ut;
|
|
struct utmpx *usr;
|
|
int nusers = 0;
|
|
|
|
memset(&ut, 0, sizeof(ut));
|
|
ut.utmpidlearr_val = &utmp_idle[0];
|
|
|
|
setutxent();
|
|
while ((usr = getutxent()) != NULL && nusers < MAXUSERS) {
|
|
if (usr->ut_type != USER_PROCESS)
|
|
continue;
|
|
|
|
memcpy(&utmp_list[nusers], usr, sizeof(*usr));
|
|
utmp_idle[nusers].ui_utmp.ut_time = usr->ut_tv.tv_sec;
|
|
utmp_idle[nusers].ui_idle =
|
|
getidle(usr->ut_line, usr->ut_host);
|
|
utmp_idle[nusers].ui_utmp.ut_line =
|
|
utmp_list[nusers].ut_line;
|
|
utmp_idle[nusers].ui_utmp.ut_name =
|
|
utmp_list[nusers].ut_user;
|
|
utmp_idle[nusers].ui_utmp.ut_host =
|
|
utmp_list[nusers].ut_host;
|
|
|
|
nusers++;
|
|
}
|
|
endutxent();
|
|
|
|
ut.utmpidlearr_len = nusers;
|
|
return(&ut);
|
|
}
|
|
|
|
static int *
|
|
rusers_num(void *argp __unused, struct svc_req *rqstp __unused)
|
|
{
|
|
static int num_users = 0;
|
|
struct utmpx *usr;
|
|
|
|
setutxent();
|
|
while ((usr = getutxent()) != NULL) {
|
|
if (usr->ut_type != USER_PROCESS)
|
|
continue;
|
|
num_users++;
|
|
}
|
|
endutxent();
|
|
|
|
return(&num_users);
|
|
}
|
|
|
|
static utmparr *
|
|
do_names_1(void)
|
|
{
|
|
utmpidlearr *utidle;
|
|
static utmparr ut;
|
|
unsigned int i;
|
|
|
|
bzero((char *)&ut, sizeof(ut));
|
|
|
|
utidle = do_names_2();
|
|
if (utidle) {
|
|
ut.utmparr_len = utidle->utmpidlearr_len;
|
|
ut.utmparr_val = &old_utmp[0];
|
|
for (i = 0; i < ut.utmparr_len; i++)
|
|
bcopy(&utmp_idle[i].ui_utmp, &old_utmp[i],
|
|
sizeof(old_utmp[0]));
|
|
|
|
}
|
|
|
|
return(&ut);
|
|
}
|
|
|
|
utmpidlearr *
|
|
rusersproc_names_2_svc(void *argp __unused, struct svc_req *rqstp __unused)
|
|
{
|
|
|
|
return (do_names_2());
|
|
}
|
|
|
|
utmpidlearr *
|
|
rusersproc_allnames_2_svc(void *argp __unused, struct svc_req *rqstp __unused)
|
|
{
|
|
|
|
return (do_names_2());
|
|
}
|
|
|
|
utmparr *
|
|
rusersproc_names_1_svc(void *argp __unused, struct svc_req *rqstp __unused)
|
|
{
|
|
|
|
return (do_names_1());
|
|
}
|
|
|
|
utmparr *
|
|
rusersproc_allnames_1_svc(void *argp __unused, struct svc_req *rqstp __unused)
|
|
{
|
|
|
|
return (do_names_1());
|
|
}
|
|
|
|
typedef void *(*rusersproc_t)(void *, struct svc_req *);
|
|
|
|
void
|
|
rusers_service(struct svc_req *rqstp, SVCXPRT *transp)
|
|
{
|
|
union {
|
|
int fill;
|
|
} argument;
|
|
char *result;
|
|
xdrproc_t xdr_argument, xdr_result;
|
|
rusersproc_t local;
|
|
|
|
switch (rqstp->rq_proc) {
|
|
case NULLPROC:
|
|
(void)svc_sendreply(transp, (xdrproc_t)xdr_void, NULL);
|
|
goto leave;
|
|
|
|
case RUSERSPROC_NUM:
|
|
xdr_argument = (xdrproc_t)xdr_void;
|
|
xdr_result = (xdrproc_t)xdr_int;
|
|
local = (rusersproc_t)rusers_num;
|
|
break;
|
|
|
|
case RUSERSPROC_NAMES:
|
|
xdr_argument = (xdrproc_t)xdr_void;
|
|
xdr_result = (xdrproc_t)xdr_utmpidlearr;
|
|
switch (rqstp->rq_vers) {
|
|
case RUSERSVERS_ORIG:
|
|
local = (rusersproc_t)rusersproc_names_1_svc;
|
|
break;
|
|
case RUSERSVERS_IDLE:
|
|
local = (rusersproc_t)rusersproc_names_2_svc;
|
|
break;
|
|
default:
|
|
svcerr_progvers(transp, RUSERSVERS_ORIG, RUSERSVERS_IDLE);
|
|
goto leave;
|
|
/*NOTREACHED*/
|
|
}
|
|
break;
|
|
|
|
case RUSERSPROC_ALLNAMES:
|
|
xdr_argument = (xdrproc_t)xdr_void;
|
|
xdr_result = (xdrproc_t)xdr_utmpidlearr;
|
|
switch (rqstp->rq_vers) {
|
|
case RUSERSVERS_ORIG:
|
|
local = (rusersproc_t)rusersproc_allnames_1_svc;
|
|
break;
|
|
case RUSERSVERS_IDLE:
|
|
local = (rusersproc_t)rusersproc_allnames_2_svc;
|
|
break;
|
|
default:
|
|
svcerr_progvers(transp, RUSERSVERS_ORIG, RUSERSVERS_IDLE);
|
|
goto leave;
|
|
/*NOTREACHED*/
|
|
}
|
|
break;
|
|
|
|
default:
|
|
svcerr_noproc(transp);
|
|
goto leave;
|
|
}
|
|
bzero(&argument, sizeof(argument));
|
|
if (!svc_getargs(transp, (xdrproc_t)xdr_argument, &argument)) {
|
|
svcerr_decode(transp);
|
|
goto leave;
|
|
}
|
|
result = (*local)(&argument, rqstp);
|
|
if (result != NULL &&
|
|
!svc_sendreply(transp, (xdrproc_t)xdr_result, result)) {
|
|
svcerr_systemerr(transp);
|
|
}
|
|
if (!svc_freeargs(transp, (xdrproc_t)xdr_argument, &argument)) {
|
|
syslog(LOG_ERR, "unable to free arguments");
|
|
exit(1);
|
|
}
|
|
leave:
|
|
if (from_inetd)
|
|
exit(0);
|
|
}
|