dunigan@ornl-msr (Tom Dunigan) (12/05/84)
ttystats.c reports on tty port usage (logins per port) and summary
login and connect profile by hour. You will need to make the
variable "lbl" match your local tty definitions. Sample output
from ttystats is:
wtmp begins Mon Nov 26 00:55
1482 logins over 8 working days
Total and average logins and connect per hour
0:00 9 1 0 0 12:00 88 11 61 7
1:00 9 1 0 0 13:00 129 16 79 9
2:00 9 1 0 0 14:00 128 16 83 10
3:00 9 1 0 0 15:00 129 16 76 9
4:00 9 1 0 0 16:00 91 11 34 4
5:00 12 1 3 0 17:00 28 3 5 0
6:00 22 2 6 0 18:00 18 2 1 0
7:00 85 10 35 4 19:00 30 3 9 1
8:00 186 23 88 11 20:00 29 3 10 1
9:00 146 18 88 11 21:00 25 3 8 1
10:00 133 16 80 10 22:00 16 2 4 0
11:00 129 16 69 8 23:00 13 1 0 0
14 console logins
0 1 2 3 4 5 6 7 8 9 a b c d e f
tty0_ 0 1 0 0 0 0 0 4 0 0 0 0 0 0 0 0
ttyh_ 3 3 0 0 28 31 69 2 0 27 59 32 67 89 0 29
ttyi_ 21 22 15 0 4 15 31 29 40 0 19 4 23 0 23 4
ttyj_ 77 88 66 58 36 13 3 0 220 71 19 4 66 4 0 0
ttyk_ 0 0 0 0 0 0 0 0 0 0 0 5 1 1 0 27
ttyp_ 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3 shutdowns
------------------------cut here --------------------------------
static char *sccsid = "@(#)ttystats.c";
/* 2/2/84
* prints interesting things about tty usage, number of logins
* and working days
* CHANGE definition of lbl below to reflect your ttys
*
*/
#include <sys/types.h>
#include <stdio.h>
#include <signal.h>
#include <sys/stat.h>
#include <utmp.h>
static char lbl[] = "s0hijkp"; /* console plus other ttys */
#define NMAX sizeof(buf[0].ut_name)
#define LMAX sizeof(buf[0].ut_line)
#define SECDAY (24*60*60)
#define LPERDAY 53
#define lineq(a,b) (!strncmp(a,b,LMAX))
#define nameq(a,b) (!strncmp(a,b,NMAX))
char *index();
#define MAXCTLR sizeof lbl
int ttyusage [MAXCTLR][16]; /* dz and dhs */
#define MAXTTYS 256
int logincnt, loginhrs[24], activehrs[24];
int conscnt, ttycnt[MAXTTYS];
int inhour,outhour;
int day, prevday, days, daylogins;
int shutcnt, crashcnt;
char **argv;
int argc;
struct utmp buf[128];
char ttnames[MAXTTYS][LMAX+1];
long logouts[MAXTTYS];
char *ctime();
main()
{
register int i, k;
int bl, wtmp;
char *ct;
register struct utmp *bp;
long otime;
struct stat stb;
int print;
char * crmsg = (char *)0;
long crtime;
time(&buf[0].ut_time);
wtmp = open("/usr/adm/wtmp", 0);
if (wtmp < 0) {
perror("/usr/adm/wtmp");
exit(1);
}
fstat(wtmp, &stb);
bl = (stb.st_size + sizeof (buf)-1) / sizeof (buf);
for (bl--; bl >= 0; bl--) {
lseek(wtmp, bl * sizeof (buf), 0);
bp = &buf[read(wtmp, buf, sizeof (buf)) / sizeof(buf[0]) - 1];
for ( ; bp >= buf; bp--) {
print = want(bp);
if (print) {
ct = ctime(&bp->ut_time);
inhour = atoi(ct+11);
loginhrs[inhour]++;
logincnt++;
day = atoi(ct+8);
if (day != prevday) {
if (daylogins > LPERDAY ) days++;
prevday=day;
daylogins=0;
}
daylogins++;
}
for (i = 0; i < MAXTTYS; i++) {
if (ttnames[i][0] == 0) {
strncpy(ttnames[i], bp->ut_line,
sizeof(bp->ut_line));
otime = logouts[i];
logouts[i] = bp->ut_time;
if (print) ttycnt[i]++;
break;
}
if (lineq(ttnames[i], bp->ut_line)) {
otime = logouts[i];
logouts[i] = bp->ut_time;
if (print) ttycnt[i]++;
break;
}
}
if (print) {
if (otime){
if (otime < 0) otime = -otime;
outhour = atoi(ctime(&otime)+11);
for (i=inhour;i<outhour;i++)
activehrs[i]++;
}
fflush(stdout);
}
if (lineq(bp->ut_line, "~")) {
for (i = 0; i < MAXTTYS; i++)
logouts[i] = -bp->ut_time;
if (nameq(bp->ut_name, "shutdown"))
shutcnt++;
else
crashcnt++;
}
}
}
ct = ctime(&buf[0].ut_time);
printf("\nwtmp begins %10.10s %5.5s \n", ct, ct + 11);
if (days == 0 | daylogins) days++;
printf(" %d logins over %d working days\n",logincnt,days);
printf("\n Total and average logins and connect per hour\n");
for (i=0;i<12;i++)
printf("%2d:00 %6d %6d %6d %6d %2d:00 %6d %6d %6d %6d\n",
i,loginhrs[i],loginhrs[i]/days,activehrs[i],activehrs[i]/days,
i+12,loginhrs[i+12],loginhrs[i+12]/days,activehrs[i+12],
activehrs[i+12]/days);
ttyprint();
printf("%d shutdowns\n",crashcnt);
exit(0);
}
want(bp)
struct utmp *bp;
{
register char **av;
register int ac;
if (bp->ut_line[0] == '~' && bp->ut_name[0] == '\0')
strcpy(bp->ut_name, "reboot"); /* bandaid */
if (bp->ut_name[0] == 0)
return (0);
if (argc == 0)
return (1);
av = argv;
for (ac = 0; ac < argc; ac++) {
if (nameq(*av, bp->ut_name) || lineq(*av, bp->ut_line))
return (1);
av++;
}
return (0);
}
ttyprint()
{
/* display tty usage info */
int i,j,k;
char *p;
for(i=0;i<MAXTTYS;i++)
if (ttycnt[i] && (p=index(lbl,ttnames[i][3]))!=NULL) {
if (k = p-lbl){
sscanf(ttnames[i]+4,"%1x",&j);
ttyusage[k][j] = ttycnt[i];
} else
printf(" %d console logins\n",ttycnt[i]);
}
printf(" ");
for (i=0;i<16;i++)printf(" %x ",i);
printf("\n");
for (i=1;i<MAXCTLR - 1;i++) {
printf(" tty%c_ ",lbl[i]);
for (j=0;j<16;j++)printf("%4d",ttyusage[i][j]);
printf("\n");
}
}