+++ /dev/null
-/*
- * raduse.c Shows the usage of the modem lines on a terminal server.
- *
- * Version: $Id$
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Copyright 2000 The FreeRADIUS server project
- * Copyright 2000 Miquel van Smoorenburg <miquels@cistron.nl>
- */
-
-#include "autoconf.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include "sysutmp.h"
-#include "conf.h"
-#include "radpaths.h"
-#include "libradius.h"
-
-#ifndef _AIX
-#ifdef HAVE_UTMPX_H
-#undef ut_time
-#define ut_time ut_xtime
-#endif
-#endif
-
-#define UTSIZE (sizeof(struct utmp))
-
-#define HOURS 19
-
-#define MAXLINES 64
-
-struct line {
- time_t lastout;
- time_t inuse;
- char hour[HOURS];
-};
-struct line lines[MAXLINES];
-int nrlines = 35;
-
-/*
- * List the terminal servers in the logfile.
- */
-static void listnas(void)
-{
- FILE *fp;
- FILE *pp;
- time_t now, stop;
- struct utmp ut;
- char *p;
- int first = 1;
- char buf[128];
- int found = 0;
-
- /* Open the sort pipe. */
- pp = popen("sort -u", "w");
-
- /* Go back max. 1 day. */
- time(&now);
- stop = now - 3600 * HOURS;
-
- /* Open wtmp file. */
- if ((fp = fopen(RADWTMP, "r")) == NULL) {
- perror(RADWTMP);
- exit(1);
- }
- fseek(fp, -UTSIZE, SEEK_END);
-
- /* Read structs backwards. */
- while(1) {
- /* Rewind if needed. */
- if (!first && fseek(fp, -2 * UTSIZE, SEEK_CUR) < 0)
- break;
- first = 0;
-
- /* Read struct and see if we have to stop. */
- if (ftell(fp) < (long)UTSIZE)
- break;
- fread(&ut, UTSIZE, 1, fp);
- if (ut.ut_time < stop)
- break;
-
- memset(buf, 0, sizeof(buf));
- strncpy(buf, ut.ut_line, sizeof(ut.ut_line));
-
- /* Get terminal server name. */
- if ((p = strchr(buf, ':')) != NULL)
- p++;
- else
- p = buf + 2;
- fprintf(pp, "%s\n", p);
- found = 1;
- }
- fclose(fp);
- pclose(pp);
-
- if (found == 0)
- printf("raduse: no data found over the last 24 hours.\n");
-}
-
-/*
- * Find out the usage of the ttys defined in
- * struct line lines[] for the last 21 hours.
- */
-static int fillstruct(int offset, const char *nas)
-{
- FILE *fp;
- time_t now, stop;
- struct utmp ut;
- int i, n;
- uint32_t port;
- int beg, end;
- char *p;
- int first = 1;
- char buf[128];
- int found = 0;
-
- /* Go back max. 1 day. */
- time(&now);
- stop = now - 3600 * HOURS;
-
- /* Open wtmp file. */
- if ((fp = fopen(RADWTMP, "r")) == NULL) {
- perror(RADWTMP);
- exit(1);
- }
- fseek(fp, -UTSIZE, SEEK_END);
-
- /* Read structs backwards. */
- while(1) {
- /* Rewind if needed. */
- if (!first && fseek(fp, -2 * UTSIZE, SEEK_CUR) < 0) break;
- first = 0;
-
- /* Read struct and see if we have to stop. */
- if (ftell(fp) < (long)UTSIZE)
- break;
- fread(&ut, UTSIZE, 1, fp);
- if (ut.ut_time < stop)
- break;
-
- memset(buf, 0, sizeof(buf));
- strncpy(buf, ut.ut_line, sizeof(ut.ut_line));
-
- /* Compare terminal server name. */
- if ((p = strchr(buf, ':')) != NULL)
- p++;
- else
- p = buf + 2;
- if (strcmp(p, nas) != 0)
- continue;
-
- found = 1;
-
- /* Now see which tty this was. */
- if ((p = strchr(buf, ':')) != NULL)
- *p = 0;
- else
- buf[2] = 0;
-
- port = strtoul(buf, NULL, 10);
- if (port == 0 && buf[0] != '0')
- continue;
- if (port < offset || port > offset + nrlines)
- continue;
-
- i = port - offset;
-
- /* Login or logout? */
- if (ut.ut_user[0] == 0) {
- lines[i].lastout = ut.ut_time;
- continue;
- }
-
- /* Skip type LOGIN */
- if (strncmp(ut.ut_user, "LOGIN", 5) == 0)
- continue;
-
- /* A login. Fill out the hour string. */
- beg = (now - ut.ut_time) / 3600;
- if (lines[i].lastout == 0) {
- lines[i].inuse = 1;
- end = 0;
- } else
- end = (now - lines[i].lastout) / 3600;
- if (beg >= HOURS) beg = HOURS - 1;
- if (end >= HOURS) end = HOURS - 1;
-
- for(n = end; n <= beg; n++)
- lines[i].hour[n] = lines[i].lastout ? '*' : '@';
-
- }
- fclose(fp);
-
- return found ? 0 : -1;
-}
-
-/*
- * Draw something that vaguely resembles a graph showing the
- * usage of the tty lines over the last 21 hours.
- */
-static void drawit(int wide, int offset)
-{
- time_t now;
- int i, n, hour;
- struct tm *tm;
- int thishour;
- int star;
-
- /* Find out current time. */
- time(&now);
- tm = localtime(&now);
- thishour = tm->tm_hour;
-
- /* Change lower spaces to dots. */
- for(i = 0; i < nrlines; i++) {
- n = 0;
- for(hour = 0; hour < HOURS; hour++) {
- if (lines[i].hour[hour]) {
- n = 1;
- } else if (n)
- lines[i].hour[hour] = '.';
- }
- }
-
- /* Prefix (show if line is in use now) */
- printf("now|");
- for(i = 0; i < nrlines; i++) {
- if (wide != 0)
- printf(" %c ", lines[i].inuse ? '@' : ' ');
- else
- printf("%c ", lines[i].inuse ? '@' : ' ');
- }
- printf("\n");
-
- /* Last 21 hours. */
- for(hour = 0; hour < HOURS; hour++) {
- printf("%02d |", thishour);
- thishour--;
- if (thishour < 0) thishour = 23;
-
- for(i = 0; i < nrlines; i++) {
- star = ' ';
- if (lines[i].hour[hour])
- star = lines[i].hour[hour];
- if (wide)
- printf(" %c ", star);
- else
- printf("%c ", star);
- }
- /* EOL */
- printf("\n");
- }
-
- /* Print a short suffix. */
- printf("---+");
- for(i = 0; i < nrlines; i++)
- printf(wide ? "---" : "--");
- printf("\n |");
- for(i = 0; i < nrlines; i++) {
- if (wide != 0)
- printf("%02d|", i + offset);
- else
- printf("%d|", (i + offset) / 10);
- }
- if (wide == 0) {
- printf("\n |");
- for(i = 0; i < nrlines; i++)
- printf("%d|", (i + offset) % 10);
- }
- printf("\n");
-}
-
-static void usage(void)
-{
- fprintf(stderr, "Usage: raduse [-w] [-o offset] terminal-server\n");
- fprintf(stderr, " use raduse -l to find out a list of terminal servers\n");
- exit(1);
-}
-
-int main(int argc, char **argv)
-{
- int wide = 0;
- int c;
- int offset = 0;
- int list = 0;
-
- while((c = getopt(argc, argv, "lwo:")) != EOF) switch(c) {
- case 'w':
- wide = 1;
- break;
- case 'o':
- offset = atoi(optarg);
- break;
- case 'l':
- list = 1;
- break;
- default:
- usage();
- break;
- }
-
- if (list != 0) {
- listnas();
- exit(0);
- }
-
- if (wide != 0)
- nrlines = 25;
-
- if (optind >= argc)
- usage();
-
- if (fillstruct(offset, argv[optind]) < 0) {
- fprintf(stderr,
- "raduse: %s: no data found (over the last 24 hours) (try raduse -l).\n",
- argv[optind]);
- return 1;
- }
- drawit(wide, offset);
-
- return 0;
-}
-
projects / freeradius.git / commitdiff