2BSD/src/finger.c
/* Copyright (c) 1979 Regents of the University of California */
#include <retrofit.h>
/* This is a finger program. It prints out useful information about users
* by digging it up from various system files. It is not very portable
* because the most useful parts of the information (the full user name,
* office, and phone numbers) are all stored in the VAX-unused gecos field
* of /etc/passwd, which, unfortunately, other UNIXes use for other things.
*
* There are three output formats, all of which give login name, teletype
* line number, and login time. The short output format is reminiscent
* of finger on ITS, and gives one line of information per user containing
* in addition to the minimum basic requirements (MBR), the full name of
* the user, his idle time and office location and phone number. The
* quick style output is UNIX who-like, giving only name, teletype and
* login time. Finally, the long style output give the same information
* as the short (in more legible format), the home directory and shell
* of the user, and, if it exits, a copy of the file .plan in the users
* home directory. Finger may be called with or without a list of people
* to finger -- if no list is given, all the people currently logged in
* are fingered.
*
* The program is validly called by one of the following:
*
* finger {short form list of users}
* finger -l {long form list of users}
* finger -b {briefer long form list of users}
* finger -q {quick list of users}
* finger -i {quick list of users with idle times}
* finger namelist {long format list of specified users}
* finger -s namelist {short format list of specified users}
* finger -w namelist {narrow short format list of specified users}
*
* where 'namelist' is a list of users login names.
* The other options can all be given after one '-', or each can have its
* own '-'. The -f option disables the printing of headers for short and
* quick outputs. The -b option briefens long format outputs. The -p
* option turns off plans for long format outputs.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <sgtty.h>
#include <utmp.h>
#include <signal.h>
#include <pwd.h>
#include <stdio.h>
#include <sccs.h>
#include <lastlog.h>
/* This is <lastlog.h> which login must maintain!
* It should be a file /usr/adm/lastlog of such structures indexed by uid
struct lastlog {
time_t ll_time;
char ll_line[8];
};
*/
#include <time.h>
#define ASTERISK '*' /* ignore this in real name */
#define BLANK ' ' /* blank character (i.e. space) */
#define CAPITALIZE 0137& /* capitalize character macro */
#define COMMA ',' /* separator in pw_gecos field */
#define COMMAND '-' /* command line flag char */
#define CORY 'C' /* cory hall office */
#define EVANS 'E' /* evans hall office */
#define LINEBREAK 012 /* line feed */
#define SAMENAME '&' /* repeat login name in real name */
#define TALKABLE 0222 /* tty is writeable if 222 mode */
struct person { /* one for each person fingered */
char name[ 9 ]; /* login name */
char tty[ 9 ]; /* NULL terminated tty line */
long loginat; /* time of login (possibly last) */
long idletime; /* how long idle (if logged in) */
short int loggedin; /* flag for being logged in */
short int writeable; /* flag for tty being writeable */
char *realname; /* pointer to full name */
char *office; /* pointer to office name */
char *officephone; /* pointer to office phone no. */
char *homephone; /* pointer to home phone no. */
char *random; /* for any random stuff in pw_gecos */
struct passwd *pwd; /* structure of /etc/passwd stuff */
struct person *link; /* link to next person */
};
struct passwd *NILPWD = 0;
struct person *NILPERS = 0;
int persize = sizeof( struct person );
int pwdsize = sizeof( struct passwd );
char LASTLOG[] = "/usr/adm/lastlog"; /* last login info */
char USERLOG[] = "/etc/utmp"; /* who is logged in */
char outbuf[BUFSIZ]; /* output buffer */
char *ctime();
int unbrief = 1; /* -b option default */
int header = 1; /* -f option default */
int hack = 1; /* -h option default */
int idle = 0; /* -i option default */
int large = 0; /* -l option default */
int match = 0; /* -m option default */
int plan = 1; /* -p option default */
int unquick = 1; /* -q option default */
int small = 0; /* -s option default */
int wide = 1; /* -w option default */
long tloc; /* current time */
main( argc, argv )
int argc;
char *argv[];
{
FILE *fp, *fopen(); /* for plans */
struct passwd *getpwent(); /* read /etc/passwd */
struct person *person1, *p, *pend; /* people */
struct passwd *pw; /* temporary */
struct utmp user; /* ditto */
char *malloc();
char *s, *pn, *ln;
char c;
char *PLAN = "/.plan"; /* what plan file is */
char *PROJ = "/.project"; /* what project file */
int PLANLEN = strlen( PLAN );
int PROJLEN = strlen( PROJ );
int numnames = 0;
int orgnumnames;
int uf;
int usize = sizeof user;
int unshort;
int i, j;
setbuf( stdout, outbuf ); /* buffer output */
/* parse command line for (optional) arguments */
i = 1;
while( i++ < argc && (*++argv)[0] == COMMAND ) {
for( s = argv[0] + 1; *s != NULL; s++ ) {
switch (*s) {
case 'b':
unbrief = 0;
break;
case 'f':
header = 0;
break;
case 'h':
hack = 0;
break;
case 'i':
idle = 1;
unquick = 0;
break;
case 'l':
large = 1;
break;
case 'm':
match = 1;
break;
case 'p':
plan = 0;
break;
case 'q':
unquick = 0;
break;
case 's':
small = 1;
break;
case 'w':
wide = 0;
break;
default:
fprintf( stderr, "finger: Usage -- 'finger [-bfhilmpqsw] [login1 [login2 ...] ]'\n" );
exit( 1 );
}
}
}
if( unquick ) {
time( &tloc );
}
else {
if( idle ) {
time( &tloc );
}
}
/* i > argc means no login names given so get them by reading USERLOG */
if( i > argc ) {
unshort = large;
if( ( uf = open(USERLOG, 0) ) >= 0 ) {
user.ut_name[0] = NULL;
while( user.ut_name[0] == NULL ) {
if( read( uf, (char *) &user, usize ) != usize ) {
printf( "\nNo one logged on\n" );
exit( 0 );
}
}
person1 = (struct person *) malloc( persize );
for( j = 0; j < 8; j++ ) {
person1->tty[j] = user.ut_line[j];
person1->name[j] = user.ut_name[j];
}
person1->name[8] = NULL;
person1->tty[8] = NULL;
person1->loginat = user.ut_time;
person1->pwd = NILPWD;
person1->loggedin = 1;
numnames++;
p = person1;
while( read( uf, (char *) &user, usize ) == usize ) {
if( user.ut_name[0] == NULL ) continue;
p->link = (struct person *) malloc( persize );
p = p->link;
for( j = 0; j < 8; j++ ) {
p->tty[j] = user.ut_line[j];
p->name[j] = user.ut_name[j];
}
p->name[8] = NULL;
p->tty[8] = NULL;
p->loginat = user.ut_time;
p->pwd = NILPWD;
p->loggedin = 1;
numnames++;
}
p->link = NILPERS;
}
else {
fprintf( stderr, "finger: error opening %s\n", USERLOG );
exit( 2 );
}
/* if we are doing it, read /etc/passwd for the useful info */
if( unquick ) {
setpwent();
i = numnames;
while( ( (pw = getpwent()) != NILPWD ) && ( i > 0 ) ) {
p = person1;
do {
if( p->pwd == NILPWD ) {
if( strcmp( p->name, pw->pw_name ) == 0 ) {
p->pwd = (struct passwd *) malloc( pwdsize );
pwdcopy( p->pwd, pw );
decode( p );
i--;
}
}
p = p->link;
} while( p != NILPERS );
}
endpwent();
}
}
/* get names from command line and check to see if they're logged in */
else {
unshort = ( small == 1 ? 0 : 1 );
i++;
person1 = (struct person *) malloc( persize );
strcpy( person1->name, (argv++)[ 0 ] );
person1->loggedin = 0;
person1->pwd = NILPWD;
numnames++;
p = person1;
while( i++ <= argc ) {
p->link = (struct person *) malloc( persize );
p = p->link;
strcpy( p->name, (argv++)[ 0 ] );
p->loggedin = 0;
p->pwd = NILPWD;
numnames++;
}
p->link = NILPERS;
pend = p;
/* if we are doing it, read /etc/passwd for the useful info */
orgnumnames = numnames;
if( unquick ) {
setpwent();
while( ( pw = getpwent() ) != NILPWD ) {
p = person1;
i = 0;
do {
if( strcmp( p->name, pw->pw_name ) == 0 ||
matchcmp( pw->pw_gecos, pw->pw_name, p->name ) ) {
if( p->pwd == NILPWD ) {
p->pwd = (struct passwd *) malloc( pwdsize );
pwdcopy( p->pwd, pw );
}
else {
pend->link = (struct person *) malloc(persize);
pend = pend->link;
pend->link = NILPERS;
strcpy( pend->name, p->name );
pend->pwd = (struct passwd *) malloc(pwdsize);
pwdcopy( pend->pwd, pw );
numnames++;
}
}
p = p->link;
} while( ++i < orgnumnames );
}
endpwent();
}
/* Now get login information */
if( ( uf = open(USERLOG, 0) ) >= 0 ) {
while( read( uf, (char *) &user, usize ) == usize ) {
if( user.ut_name[0] == NULL ) continue;
p = person1;
do {
pw = p->pwd;
if( pw == NILPWD ) {
p = p->link;
continue;
}
i = 0;
while((i < 8) && (pw->pw_name[i] == user.ut_name[i])) {
if( pw->pw_name[i] == NULL ) {
i = 8;
break;
}
i++;
}
if( i == 8 ) {
if( p->loggedin == 1 ) {
pend->link = (struct person *) malloc(persize);
pend = pend->link;
pend->link = NILPERS;
strcpy( pend->name, p->name );
for( j = 0; j < 8; j++ ) {
pend->tty[j] = user.ut_line[j];
}
pend->tty[ 8 ] = NULL;
pend->loginat = user.ut_time;
pend->loggedin = 2;
pend->pwd = (struct passwd *) malloc(pwdsize);
pwdcopy( pend->pwd, pw );
numnames++;
}
else {
if( p->loggedin != 2 ) {
for( j = 0; j < 8; j++ ) {
p->tty[j] = user.ut_line[j];
}
p->tty[ 8 ] = NULL;
p->loginat = user.ut_time;
p->loggedin = 1;
}
}
}
p = p->link;
} while( p != NILPERS );
}
p = person1;
while( p != NILPERS ) {
if( p->loggedin == 2 ) {
p->loggedin = 1;
}
decode( p );
p = p->link;
}
}
else {
fprintf( stderr, "finger: error opening %s\n", USERLOG );
exit( 2 );
}
}
/* print out what we got */
if( header ) {
if( unquick ) {
if( !unshort ) {
if( wide ) {
printf(
"Login Name TTY Idle When Office\n" );
}
else {
printf(
"Login TTY Idle When Office\n" );
}
}
}
else {
printf( "Login TTY When" );
if( idle ) {
printf( " Idle" );
}
printf( "\n" );
}
}
p = person1;
do {
if( unquick ) {
if( unshort ) {
personprint( p );
if( p->pwd != NILPWD ) {
if( hack ) {
s = malloc(strlen((p->pwd)->pw_dir) + PROJLEN + 1 );
strcpy( s, (p->pwd)->pw_dir );
strcat( s, PROJ );
if( ( fp = fopen( s, "r") ) != NULL ) {
printf( "Project: " );
while( ( c = getc(fp) ) != EOF ) {
if( c == LINEBREAK ) {
break;
}
putc( c, stdout );
}
fclose( fp );
printf( "\n" );
}
}
if( plan ) {
s = malloc( strlen( (p->pwd)->pw_dir ) + PLANLEN + 1 );
strcpy( s, (p->pwd)->pw_dir );
strcat( s, PLAN );
if( ( fp = fopen( s, "r") ) == NULL ) {
printf( "No Plan.\n" );
}
else {
printf( "Plan:\n" );
while( ( c = getc(fp) ) != EOF ) {
putc( c, stdout );
}
fclose( fp );
}
}
}
if( p->link != NILPERS ) {
printf( "\n" );
}
}
else {
shortprint( p );
}
}
else {
quickprint( p );
}
p = p->link;
} while( p != NILPERS );
}
/* given a pointer to a pwd (pfrom) copy it to another one, allocating
* space for all the stuff in it. Note: Only the useful (what the
* program currently uses) things are copied.
*/
pwdcopy( pto, pfrom ) /* copy relevant fields only */
struct passwd *pto, *pfrom;
{
pto->pw_name = malloc( strlen( pfrom->pw_name ) + 1 );
strcpy( pto->pw_name, pfrom->pw_name );
pto->pw_uid = pfrom->pw_uid;
pto->pw_gecos = malloc( strlen( pfrom->pw_gecos ) + 1 );
strcpy( pto->pw_gecos, pfrom->pw_gecos );
pto->pw_dir = malloc( strlen( pfrom->pw_dir ) + 1 );
strcpy( pto->pw_dir, pfrom->pw_dir );
pto->pw_shell = malloc( strlen( pfrom->pw_shell ) + 1 );
strcpy( pto->pw_shell, pfrom->pw_shell );
}
/* print out information on quick format giving just name, tty, login time
* and idle time if idle is set.
*/
quickprint( pers )
struct person *pers;
{
int idleprinted;
printf( "%-8.8s", pers->name );
printf( " " );
if( pers->loggedin ) {
if( idle ) {
findidle( pers );
if( pers->writeable ) {
printf( " %-8.8s %-16.16s",
pers->tty, ctime( &pers->loginat ) );
}
else {
printf( "*%-8.8s %-16.16s",
pers->tty, ctime( &pers->loginat ) );
}
printf( " " );
idleprinted = ltimeprint( &pers->idletime );
}
else {
printf( " %-8.8s %-16.16s",
pers->tty, ctime( &pers->loginat ) );
}
}
else {
printf( " Not Logged In" );
}
printf( "\n" );
}
/* print out information in short format, giving login name, full name,
* tty, idle time, login time, office location and phone.
*/
shortprint( pers )
struct person *pers;
{
struct passwd *pwdt = pers->pwd;
char buf[ 26 ];
int i, len, offset, dialup;
if( pwdt == NILPWD ) {
printf( "%-8.8s", pers->name );
printf( " ???\n" );
return;
}
printf( "%-8.8s", pwdt->pw_name );
dialup = 0;
if( wide ) {
if( strlen( pers->realname ) > 0 ) {
printf( " %-16.16s", pers->realname );
}
else {
printf( " ??? " );
}
}
if( pers->loggedin ) {
if( pers->writeable ) {
printf( " " );
}
else {
printf( " *" );
}
}
else {
printf( " " );
}
if( strlen( pers->tty ) > 0 ) {
strcpy( buf, pers->tty );
if( (buf[0] == 't') && (buf[1] == 't') && (buf[2] == 'y') ) {
offset = 3;
for( i = 0; i < 2; i++ ) {
buf[i] = buf[i + offset];
}
}
if( (buf[0] == 'd') && pers->loggedin ) {
dialup = 1;
}
printf( "%-2.2s ", buf );
}
else {
printf( " " );
}
strcpy( buf, ctime( &pers->loginat ) );
if( pers->loggedin ) {
stimeprint( &pers->idletime );
offset = 7;
for( i = 4; i < 19; i++ ) {
buf[i] = buf[i + offset];
}
printf( " %-9.9s ", buf );
}
else {
printf( " " );
offset = 4;
for( i = 0; i <22; i++ ) {
buf[i] = buf[i + offset];
}
printf( "<%-12.12s>", buf );
}
len = strlen( pers->homephone );
if( dialup && (len > 0) ) {
if( len == 8 ) {
printf( " " );
}
else {
if( len == 12 ) {
printf( " " );
}
else {
for( i = 1; i <= 20 - len; i++ ) {
printf( " " );
}
}
}
printf( "%s", pers->homephone );
}
else {
if( strlen( pers->office ) > 0 ) {
printf( " %-10.10s", pers->office );
if( strlen( pers->officephone ) > 0 ) {
printf( " %s", pers->officephone );
}
else {
if( len == 8 ) {
printf( " %s", pers->homephone );
}
}
}
else {
if( strlen( pers->officephone ) > 0 ) {
printf( " %s", pers->officephone );
}
else {
if( len == 8 ) {
printf( " ", pers->homephone );
}
else {
if( len == 12 ) {
printf( " ", pers->homephone );
}
}
}
}
}
printf( "\n" );
}
/* print out a person in long format giving all possible information.
* directory and shell are inhibited if unbrief is clear.
*/
personprint( pers )
struct person *pers;
{
struct passwd *pwdt = pers->pwd;
int idleprinted;
if( pwdt == NILPWD ) {
printf( "Login name: %-10s", pers->name );
printf( " " );
printf( "In real life: ???\n");
return;
}
printf( "Login name: %-10s", pwdt->pw_name );
if( pers->loggedin ) {
if( pers->writeable ) {
printf( " " );
}
else {
printf( " (messages off) " );
}
}
else {
printf( " " );
}
if( strlen( pers->realname ) > 0 ) {
printf( "In real life: %-s", pers->realname );
}
if( strlen( pers->office ) > 0 ) {
printf( "\nOffice: %-.10s", pers->office );
if( strlen( pers->officephone ) > 0 ) {
printf( ", %s", pers->officephone );
if( strlen( pers->homephone ) > 0 ) {
printf( " Home phone: %s", pers->homephone );
}
else {
if( strlen( pers->random ) > 0 ) {
printf( " %s", pers->random );
}
}
}
else {
if( strlen( pers->homephone ) > 0 ) {
printf(" Home phone: %s",pers->homephone);
}
if( strlen( pers->random ) > 0 ) {
printf( " %s", pers->random );
}
}
}
else {
if( strlen( pers->officephone ) > 0 ) {
printf( "\nPhone: %s", pers->officephone );
if( strlen( pers->homephone ) > 0 ) {
printf( "\n, %s", pers->homephone );
if( strlen( pers->random ) > 0 ) {
printf( ", %s", pers->random );
}
}
else {
if( strlen( pers->random ) > 0 ) {
printf( "\n, %s", pers->random );
}
}
}
else {
if( strlen( pers->homephone ) > 0 ) {
printf( "\nPhone: %s", pers->homephone );
if( strlen( pers->random ) > 0 ) {
printf( "%s", pers->random );
}
}
else {
if( strlen( pers->random ) > 0 ) {
printf( "\n%s", pers->random );
}
}
}
}
if( unbrief ) {
printf( "\n" );
printf( "Directory: %-25s", pwdt->pw_dir );
if( strlen( pwdt->pw_shell ) > 0 ) {
printf( " Shell: %-s", pwdt->pw_shell );
}
}
if( pers->loggedin ) {
register char *ep = ctime( &pers->loginat );
printf("\nOn since %15.15s on %-8.8s ", &ep[4], pers->tty );
idleprinted = ltimeprint( &pers->idletime );
if( idleprinted ) {
printf( " Idle Time" );
}
}
else {
register char *ep = ctime( &pers->loginat );
printf("\nLast login %16.16s on %.8s", ep, pers->tty );
}
printf( "\n" );
}
/* very hacky section of code to print phone numbers. filled with
* magic constants like 4, 7 and 10.
*/
char *phone( s, len )
char *s;
int len;
{
char *strsave();
char fonebuf[ 15 ];
int i;
switch (len) {
case 4:
fonebuf[ 0 ] = ' ';
fonebuf[ 1 ] = 'x';
fonebuf[ 2 ] = '2';
fonebuf[ 3 ] = '-';
for( i = 0; i <= 3; i++ ) {
fonebuf[ 4 + i ] = *s++;
}
return( strsave( &fonebuf[0] ) );
break;
case 7:
for( i = 0; i <= 2; i++ ) {
fonebuf[ i ] = *s++;
}
fonebuf[ 3 ] = '-';
for( i = 0; i <= 3; i++ ) {
fonebuf[ 4 + i ] = *s++;
}
return( strsave( &fonebuf[0] ) );
break;
case 10:
for( i = 0; i <= 2; i++ ) {
fonebuf[ i ] = *s++;
}
fonebuf[ 3 ] = '-';
for( i = 0; i <= 2; i++ ) {
fonebuf[ 4 + i ] = *s++;
}
fonebuf[ 7 ] = '-';
for( i = 0; i <= 3; i++ ) {
fonebuf[ 8 + i ] = *s++;
}
return( strsave( &fonebuf[0] ) );
break;
default:
fprintf( stderr, "finger: error in phone numbering\n" );
return( strsave(s) );
break;
}
}
/* decode the information in the gecos field of /etc/passwd
* another hacky section of code, but given the format the stuff is in...
*/
decode( pers )
struct person *pers;
{
struct passwd *pwdt = pers->pwd;
char buffer[ 40 ], *bp, *gp, *lp;
char *phone();
int alldigits;
int len;
int i;
pers->realname = NULL;
pers->office = NULL;
pers->officephone = NULL;
pers->homephone = NULL;
pers->random = NULL;
if( pwdt != NILPWD ) {
gp = pwdt->pw_gecos;
bp = &buffer[ 0 ];
if( *gp == ASTERISK ) {
gp++;
}
while( (*gp != NULL) && (*gp != COMMA) ) {
if( *gp == SAMENAME ) {
lp = pwdt->pw_name;
*bp++ = CAPITALIZE(*lp++);
while( *lp != NULL ) {
*bp++ = *lp++;
}
}
else {
*bp++ = *gp;
}
gp++;
}
*bp = NULL;
pers->realname = malloc( strlen( &buffer[0] ) + 1 );
strcpy( pers->realname, &buffer[0] );
if( *gp++ == COMMA ) {
alldigits = 1;
bp = &buffer[ 0 ];
while( (*gp != NULL) && (*gp != COMMA) ) {
*bp = *gp++;
alldigits = alldigits && ('0' <= *bp) && (*bp <= '9');
bp++;
}
*bp = NULL;
len = strlen( &buffer[0] );
if( buffer[ len - 1] == CORY ) {
strcpy( &buffer[ len - 1 ], " Cory" );
pers->office = malloc( len + 5 );
strcpy( pers->office, &buffer[0] );
}
else {
if( buffer[ len - 1 ] == EVANS ) {
strcpy( &buffer[ len - 1 ], " Evans" );
pers->office = malloc( len + 6 );
strcpy( pers->office, &buffer[0] );
}
else {
if( buffer[ len - 1 ] == 'L' ) {
strcpy( &buffer[ len - 3 ], " LBL" );
pers->office = malloc( len + 2 );
strcpy( pers->office, &buffer[0] );
}
else {
if( alldigits ) {
if( len == 4 ) {
pers->officephone = phone(&buffer[0], len);
}
else {
if( (len == 7) || (len == 10) ) {
pers->homephone = phone(&buffer[0],len);
}
}
}
else {
pers->random = malloc( len + 1 );
strcpy( pers->random, &buffer[0] );
}
}
}
}
if( *gp++ == COMMA ) {
bp = &buffer[ 0 ];
alldigits = 1;
while( (*gp != NULL) && (*gp != COMMA) ) {
*bp = *gp++;
alldigits = alldigits && ('0' <= *bp) && (*bp <= '9');
bp++;
}
*bp = NULL;
len = strlen( &buffer[0] );
if( alldigits ) {
if( len != 4 ) {
if( (len == 7) || (len == 10) ) {
pers->homephone = phone( &buffer[0], len );
}
else {
pers->random = malloc( len + 1 );
strcpy( pers->random, &buffer[0] );
}
}
else {
pers->officephone = phone( &buffer[0], len );
}
}
else {
pers->random = malloc( len + 1 );
strcpy( pers->random, &buffer[0] );
}
if( *gp++ == COMMA ) {
bp = &buffer[ 0 ];
alldigits = 1;
while( (*gp != NULL) && (*gp != COMMA) ) {
*bp = *gp++;
alldigits = alldigits && ('0' <= *bp) &&
(*bp <= '9');
bp++;
}
*bp = NULL;
len = strlen( &buffer[0] );
if( alldigits && ( (len == 7) || (len == 10) ) ) {
if( pers->homephone != NULL ) {
pers->officephone = pers->homephone;
}
pers->homephone = phone( &buffer[0], len );
}
else {
pers->random = malloc( strlen( &buffer[0] ) + 1 );
strcpy( pers->random, &buffer[0] );
}
}
}
}
if( pers->loggedin == 0 ) {
findwhen( pers );
}
else {
findidle( pers );
}
}
}
/* find the last log in of a user by checking the LASTLOG file.
* the entry is indexed by the uid, so this can only be done if
* the uid is known (which it isn't in quick mode)
*/
findwhen( pers )
struct person *pers;
{
struct passwd *pwdt = pers->pwd;
struct lastlog ll;
int llsize = sizeof ll;
int lf;
int i;
if( ( lf = open(LASTLOG, 0) ) >= 0 ) {
lseek( lf, pwdt->pw_uid*llsize, 0 );
if( read( lf, (char *) &ll, llsize ) == llsize ) {
for( i = 0; i < 8; i++ ) {
pers->tty[ i ] = ll.ll_line[ i ];
}
pers->tty[ 8 ] = NULL;
pers->loginat = ll.ll_time;
}
else {
fprintf( stderr, "finger: lastlog read error\n" );
}
}
else {
fprintf( stderr, "finger: lastlog open error\n" );
exit( 3 );
}
}
/* find the idle time of a user by doing a stat on /dev/histty,
* where histty has been gotten from USERLOG, supposedly.
*/
findidle( pers )
struct person *pers;
{
struct stat ttystatus;
struct passwd *pwdt = pers->pwd;
char buffer[ 20 ];
char *TTY = "/dev/";
int TTYLEN = strlen( TTY );
int i;
strcpy( &buffer[0], TTY );
i = 0;
do {
buffer[ TTYLEN + i ] = pers->tty[ i ];
} while( ++i <= 8 );
if( stat( &buffer[0], &ttystatus ) >= 0 ) {
time( &tloc );
if( tloc < ttystatus.st_atime ) {
pers->idletime = 0L;
}
else {
pers->idletime = tloc - ttystatus.st_atime;
}
if( (ttystatus.st_mode & TALKABLE) == TALKABLE ) {
pers->writeable = 1;
}
else {
pers->writeable = 0;
}
}
else {
fprintf( stderr, "finger: error STATing %s\n", &buffer[0] );
exit( 4 );
}
}
/* print idle time in short format; this program always prints 4 characters;
* if the idle time is zero, it prints 4 blanks.
*/
stimeprint( dt )
long *dt;
{
struct tm *gmtime();
struct tm *delta;
delta = gmtime( dt );
if( delta->tm_yday == 0 ) {
if( delta->tm_hour == 0 ) {
if( delta->tm_min >= 10 ) {
printf( " %2.2d ", delta->tm_min );
}
else {
if( delta->tm_min == 0 ) {
printf( " " );
}
else {
printf( " %1.1d ", delta->tm_min );
}
}
}
else {
if( delta->tm_hour >= 10 ) {
printf( "%3.3d:", delta->tm_hour );
}
else {
printf( "%1.1d:%02.2d", delta->tm_hour, delta->tm_min );
}
}
}
else {
printf( "%3dd", delta->tm_yday );
}
}
/* print idle time in long format with care being taken not to pluralize
* 1 minutes or 1 hours or 1 days.
*/
ltimeprint( dt )
long *dt;
{
struct tm *gmtime();
struct tm *delta;
int printed = 1;
delta = gmtime( dt );
if( delta->tm_yday == 0 ) {
if( delta->tm_hour == 0 ) {
if( delta->tm_min >= 10 ) {
printf( "%2d minutes", delta->tm_min );
}
else {
if( delta->tm_min == 0 ) {
if( delta->tm_sec > 10 ) {
printf( "%2d seconds", delta->tm_sec );
}
else {
printed = 0;
}
}
else {
if( delta->tm_min == 1 ) {
if( delta->tm_sec == 1 ) {
printf( "%1d minute %1d second",
delta->tm_min, delta->tm_sec );
}
else {
printf( "%1d minute %d seconds",
delta->tm_min, delta->tm_sec );
}
}
else {
if( delta->tm_sec == 1 ) {
printf( "%1d minutes %1d second",
delta->tm_min, delta->tm_sec );
}
else {
printf( "%1d minutes %d seconds",
delta->tm_min, delta->tm_sec );
}
}
}
}
}
else {
if( delta->tm_hour >= 10 ) {
printf( "%2d hours", delta->tm_hour );
}
else {
if( delta->tm_hour == 1 ) {
if( delta->tm_min == 1 ) {
printf( "%1d hour %1d minute",
delta->tm_hour, delta->tm_min );
}
else {
printf( "%1d hour %2d minutes",
delta->tm_hour, delta->tm_min );
}
}
else {
if( delta->tm_min == 1 ) {
printf( "%1d hours %1d minute",
delta->tm_hour, delta->tm_min );
}
else {
printf( "%1d hours %2d minutes",
delta->tm_hour, delta->tm_min );
}
}
}
}
}
else {
if( delta->tm_yday >= 10 ) {
printf( "%2d days", delta->tm_yday );
}
else {
if( delta->tm_yday == 1 ) {
if( delta->tm_hour == 1 ) {
printf( "%1d day %1d hour",
delta->tm_yday, delta->tm_hour );
}
else {
printf( "%1d day %2d hours",
delta->tm_yday, delta->tm_hour );
}
}
else {
if( delta->tm_hour == 1 ) {
printf( "%1d days %1d hour",
delta->tm_yday, delta->tm_hour );
}
else {
printf( "%1d days %2d hours",
delta->tm_yday, delta->tm_hour );
}
}
}
}
return( printed );
}
matchcmp( gname, login, given )
char *gname;
char *login;
char *given;
{
char buffer[ 20 ];
char c;
int flag, i, unfound;
if( !match ) {
return( 0 );
}
else {
if( namecmp( login, given ) ) {
return( 1 );
}
else {
if( *gname == ASTERISK ) {
gname++;
}
flag = 1;
i = 0;
unfound = 1;
while( unfound ) {
if( flag ) {
c = *gname++;
if( c == SAMENAME ) {
flag = 0;
c = *login++;
}
else {
unfound = (*gname != COMMA) && (*gname != NULL);
}
}
else {
c = *login++;
if( c == NULL ) {
if( (*gname == COMMA) || (*gname == NULL) ) {
break;
}
else {
flag = 1;
continue;
}
}
}
if( c == BLANK ) {
buffer[i++] = NULL;
if( namecmp( buffer, given ) ) {
return( 1 );
}
i = 0;
flag = 1;
}
else {
buffer[ i++ ] = c;
}
}
buffer[i++] = NULL;
if( namecmp( buffer, given ) ) {
return( 1 );
}
else {
return( 0 );
}
}
}
}
namecmp( name1, name2 )
char *name1;
char *name2;
{
char c1, c2;
c1 = *name1;
if( (('A' <= c1) && (c1 <= 'Z')) || (('a' <= c1) && (c1 <= 'z')) ) {
c1 = CAPITALIZE( c1 );
}
c2 = *name2;
if( (('A' <= c2) && (c2 <= 'Z')) || (('a' <= c2) && (c2 <= 'z')) ) {
c2 = CAPITALIZE( c2 );
}
while( c1 == c2 ) {
if( c1 == NULL ) {
return( 1 );
}
c1 = *++name1;
if( (('A'<=c1) && (c1<='Z')) || (('a'<=c1) && (c1<='z')) ) {
c1 = CAPITALIZE( c1 );
}
c2 = *++name2;
if( (('A'<=c2) && (c2<='Z')) || (('a'<=c2) && (c2<='z')) ) {
c2 = CAPITALIZE( c2 );
}
}
if( *name1 == NULL ) {
while( ('0' <= *name2) && (*name2 <= '9') ) {
name2++;
}
if( *name2 == NULL ) {
return( 1 );
}
}
else {
if( *name2 == NULL ) {
while( ('0' <= *name1) && (*name1 <= '9') ) {
name1++;
}
if( *name1 == NULL ) {
return( 1 );
}
}
}
return( 0 );
}
char *strsave( s )
char *s;
{
char *malloc();
char *p;
p = malloc( strlen( s ) + 1 );
strcpy( p, s );
}