#/*-
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR `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 AUTHOR 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.
*/
char rp_rcsid[] =
"$Id: rusers_proc.c,v 1.16 2000/07/23 03:11:56 dholland Exp $";
#include <signal.h>
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>
#include <utmp.h>
#include <stdio.h>
#include <syslog.h>
#include <string.h>
#include <rpc/rpc.h>
#include <sys/socket.h>
#include <sys/param.h>
#include <sys/stat.h>
#ifdef XIDLE
#include <setjmp.h>
#include <X11/Xlib.h>
#include <X11/extensions/xidle.h>
#endif
/*
* Sigh.
*/
#ifdef __GLIBC__
#define UT_TIME ut_xtime
#define RUT_TIME rut_time
#else
#define UT_TIME ut_time
#define RUT_TIME ut_time
#endif
/* Glibc strikes again */
#ifdef __GLIBC__
#include <rpcsvc/rusers.h>
#else
#include "rusers.h"
#endif
void rusers_service(struct svc_req *rqstp, SVCXPRT *transp);
#define IGNOREUSER "sleeper"
#ifndef _PATH_DEV
#define _PATH_DEV "/dev"
#endif
#ifndef UT_LINESIZE
#define UT_LINESIZE sizeof(((struct utmp *)0)->ut_line)
#endif
#ifndef UT_NAMESIZE
#define UT_NAMESIZE sizeof(((struct utmp *)0)->ut_name)
#endif
#ifndef UT_HOSTSIZE
#define UT_HOSTSIZE sizeof(((struct utmp *)0)->ut_host)
#endif
typedef char ut_line_t[UT_LINESIZE+1];
typedef char ut_name_t[UT_NAMESIZE+1];
typedef char ut_host_t[UT_HOSTSIZE+1];
struct rusers_utmp utmps[MAXUSERS];
struct utmpidle *utmp_idlep[MAXUSERS];
struct utmpidle utmp_idle[MAXUSERS];
ut_line_t line[MAXUSERS];
ut_name_t name[MAXUSERS];
ut_host_t host[MAXUSERS];
extern int from_inetd;
#ifdef XIDLE
Display *dpy;
static sigjmp_buf openAbort;
static void
abortOpen ()
{
siglongjmp (openAbort, 1);
}
static long
XqueryIdle(char *display)
{
int first_event, first_error;
Time IdleTime;
int result = -1;
(void) signal (SIGALRM, abortOpen);
(void) alarm ((unsigned) 10);
if (!sigsetjmp(openAbort, 1)) {
if (!(dpy= XOpenDisplay(display))) {
syslog(LOG_ERR, "Cannot open display %s", display);
goto out;
}
if (XidleQueryExtension(dpy, &first_event, &first_error)) {
if (!XGetIdleTime(dpy, &IdleTime)) {
syslog(LOG_ERR, "%s: Unable to get idle time.", display);
goto out;
}
}
else {
syslog(LOG_ERR, "%s: Xidle extension not loaded.", display);
goto out;
}
XCloseDisplay(dpy);
}
else {
syslog(LOG_ERR, "%s: Server grabbed for over 10 seconds.", display);
goto out;
}
IdleTime /= 1000;
result = (IdleTime + 30) / 60;
out:
(void) signal (SIGALRM, SIG_DFL);
(void) alarm ((unsigned) 0);
return result;
}
#endif
static u_int
getidle(char *tty, char *display)
{
struct stat st;
char devname[PATH_MAX];
time_t now;
long idletime;
(void)display;
/* Don't trust utmp data */
if (strstr(tty, "../"))
return 0;
/*
* If this is an X terminal or console, then try the
* XIdle extension
*/
#ifdef XIDLE
if (display && *display && (idletime = XqueryIdle(display)) >= 0)
return(idletime);
#endif
idletime = 0;
#if 0
if (*tty == 'X') {
u_long kbd_idle, mouse_idle;
#if !defined(i386)
kbd_idle = getidle("kbd", NULL);
#else
#if (__GNUC__ >= 2)
#warning i386 console hack here
#endif
kbd_idle = getidle("vga", NULL);
#endif
mouse_idle = getidle("mouse", NULL);
idletime = (kbd_idle < mouse_idle)?kbd_idle:mouse_idle;
}
else {
#endif
{
snprintf(devname, sizeof(devname), "%s/%s", _PATH_DEV, tty);
if (stat(devname, &st) < 0) {
#ifdef DEBUG
printf("%s: %s\n", devname, strerror(errno));
#endif
return(-1);
}
time(&now);
#ifdef DEBUG
printf("%s: now=%d atime=%d\n", devname, now,
st.st_atime);
#endif
if (now < st.st_atime) idletime = 0;
else idletime = now - st.st_atime;
idletime = (idletime + 30) / 60; /* secs->mins */
}
/* idletime is unsigned */
/* if (idletime < 0) idletime = 0; */
return idletime;
}
static
char *
rusers_num(void *ign1, struct svc_req *ign2)
{
static int num_users = 0;
struct utmp *uptr;
(void)ign1;
(void)ign2;
/* only use entries with both name and line fields */
setutent();
while ((uptr = getutent())!=NULL) {
if (*uptr->ut_name && *uptr->ut_line &&
strncmp(uptr->ut_name, IGNOREUSER,
sizeof(uptr->ut_name))
#ifdef USER_PROCESS
&& uptr->ut_type == USER_PROCESS
#endif
) {
num_users++;
}
}
endutent();
return (char *) &num_users;
}
static utmp_array *
do_names_3(int all)
{
static utmp_array ut;
struct utmp *uptr;
int nusers = 0;
(void)all;
memset(&ut, 0, sizeof(ut));
ut.utmp_array_val = &utmps[0];
/* only use entries with both name and line fields */
setutent();
while ((uptr = getutent())!=NULL && nusers < MAXUSERS) {
if (*uptr->ut_name && *uptr->ut_line &&
strncmp(uptr->ut_name, IGNOREUSER,
sizeof(uptr->ut_name))
#ifdef USER_PROCESS
&& uptr->ut_type == USER_PROCESS
#endif
) {
utmps[nusers].ut_type = RUSERS_USER_PROCESS;
utmps[nusers].ut_time =
uptr->UT_TIME;
utmps[nusers].ut_idle =
getidle(uptr->ut_line, uptr->ut_host);
utmps[nusers].ut_line = line[nusers];
strncpy(line[nusers], uptr->ut_line,
sizeof(line[nusers]));
line[nusers][sizeof(line[nusers])-1] = 0;
utmps[nusers].ut_user = name[nusers];
strncpy(name[nusers], uptr->ut_name,
sizeof(name[nusers]));
name[nusers][sizeof(name[nusers])-1] = 0;
utmps[nusers].ut_host = host[nusers];
strncpy(host[nusers], uptr->ut_host,
sizeof(host[nusers]));
host[nusers][sizeof(host[nusers])-1] = 0;
line[nusers][UT_LINESIZE] = '\0';
name[nusers][UT_NAMESIZE] = '\0';
host[nusers][UT_HOSTSIZE] = '\0';
nusers++;
}
}
ut.utmp_array_len = nusers;
endutent();
return &ut;
}
utmp_array *
rusersproc_names_3(void *tmp1, CLIENT *tmp2)
{
(void)tmp1;
(void)tmp2;
return do_names_3(0);
}
utmp_array *
rusersproc_allnames_3(void *tmp1, CLIENT *tmp2)
{
(void)tmp1;
(void)tmp2;
return do_names_3(1);
}
static void do_strncpy(char *tgt, const char *src, size_t len) {
strncpy(tgt, src, len);
tgt[len-1] = 0;
}
static
struct utmpidlearr *
do_names_2(int all)
{
static struct utmpidlearr ut;
struct utmp *uptr;
int nusers = 0;
(void)all;
memset(&ut, 0, sizeof(ut));
ut.uia_arr = utmp_idlep;
ut.uia_cnt = 0;
/* only use entries with both name and line fields */
setutent();
while ((uptr = getutent())!=NULL && nusers < MAXUSERS) {
if (*uptr->ut_name && *uptr->ut_line &&
strncmp(uptr->ut_name, IGNOREUSER,
sizeof(uptr->ut_name))
#ifdef USER_PROCESS
&& uptr->ut_type == USER_PROCESS
#endif
) {
utmp_idlep[nusers] = &utmp_idle[nusers];
utmp_idle[nusers].ui_utmp.ut_time =
uptr->UT_TIME;
utmp_idle[nusers].ui_idle =
getidle(uptr->ut_line, uptr->ut_host);
do_strncpy(utmp_idle[nusers].ui_utmp.ut_line,
uptr->ut_line,
sizeof(utmp_idle[nusers].ui_utmp.ut_line));
/* note NOT do_strncpy */
strncpy(utmp_idle[nusers].ui_utmp.ut_name,
uptr->ut_name,
sizeof(utmp_idle[nusers].ui_utmp.ut_name));
do_strncpy(utmp_idle[nusers].ui_utmp.ut_host,
uptr->ut_host,
sizeof(utmp_idle[nusers].ui_utmp.ut_host));
nusers++;
}
}
ut.uia_cnt = nusers;
endutent();
return(&ut);
}
static
char *
rusersproc_names_2(void)
{
return (char *) do_names_2(0);
}
static
char *
rusersproc_allnames_2(void)
{
return (char *) do_names_2(1);
}
void
rusers_service(struct svc_req *rqstp, SVCXPRT *transp)
{
union {
int fill;
} argument;
char *result;
bool_t (*xdr_argument)(void);
xdrproc_t xdr_result;
typedef char *(*localproc_t)(void *, struct svc_req *);
localproc_t local;
switch (rqstp->rq_proc) {
case NULLPROC:
(void)svc_sendreply(transp, (xdrproc_t) xdr_void, NULL);
goto leave;
case RUSERSPROC_NUM:
xdr_argument = xdr_void;
xdr_result = (xdrproc_t) xdr_int;
switch (rqstp->rq_vers) {
case RUSERSVERS_3:
case RUSERSVERS_IDLE:
local = rusers_num;
break;
default:
svcerr_progvers(transp, RUSERSVERS_IDLE, RUSERSVERS_3);
goto leave;
}
break;
case RUSERSPROC_NAMES:
xdr_argument = xdr_void;
xdr_result = (xdrproc_t) xdr_utmp_array;
switch (rqstp->rq_vers) {
case RUSERSVERS_3:
local = (localproc_t) rusersproc_names_3;
break;
case RUSERSVERS_IDLE:
xdr_result = (xdrproc_t) xdr_utmpidlearr;
local = (localproc_t) rusersproc_names_2;
break;
default:
svcerr_progvers(transp, RUSERSVERS_IDLE, RUSERSVERS_3);
goto leave;
/*NOTREACHED*/
}
break;
case RUSERSPROC_ALLNAMES:
xdr_argument = xdr_void;
xdr_result = (xdrproc_t) xdr_utmp_array;
switch (rqstp->rq_vers) {
case RUSERSVERS_3:
local = (localproc_t) rusersproc_allnames_3;
break;
case RUSERSVERS_IDLE:
xdr_result = (xdrproc_t) xdr_utmpidlearr;
local = (localproc_t) rusersproc_allnames_2;
break;
default:
svcerr_progvers(transp, RUSERSVERS_IDLE, RUSERSVERS_3);
goto leave;
/*NOTREACHED*/
}
break;
default:
svcerr_noproc(transp);
goto leave;
}
memset(&argument, 0, sizeof(argument));
if (!svc_getargs(transp, (xdrproc_t)xdr_argument, (char *)&argument)) {
svcerr_decode(transp);
goto leave;
}
result = (*local)(&argument, rqstp);
if (result != NULL &&
!svc_sendreply(transp, xdr_result, result)) {
svcerr_systemerr(transp);
}
if (!svc_freeargs(transp, (xdrproc_t)xdr_argument, (char *)&argument)) {
(void)fprintf(stderr, "unable to free arguments\n");
exit(1);
}
leave:
if (from_inetd)
exit(0);
}
Radix cross Linux
The main Radix cross Linux repository contains the build scripts of packages, which have the most complete and common functionality for desktop machines
452 Commits
2 Branches
1 Tag