[15695] in Athena Bugs
login and utmp
daemon@ATHENA.MIT.EDU (Brett David Rosen)
Mon Nov 24 18:12:31 1997
To: bugs@MIT.EDU
Date: Mon, 24 Nov 1997 18:12:27 EST
From: Brett David Rosen <bdrosen@MIT.EDU>
This is a repeat of bugs 14795 .
In login.c, the order of pututline and pututxline is important
if you want to preserve certain information, such as the host.
ie under Solaris 2.6, non athena:
bigboote% finger
Login Name TTY Idle When Where
root Super-User console 6:54 Mon 14:21 :0
bdrosen ??? pts/3 Mon 17:52 COGSWORTH.MIT.EDU
on cogsworth, a 2.5.1 athenaized sun:
> /usr/bin/finger
Login Name TTY Idle When Where
bdrosen Brett David Rosen ttyp0 5:05 Mon 12:46 :0.0
bdrosen Brett David Rosen pts/3 Mon 17:51
(should say COGSWORTH.MIT.EDU under Where for the second entry)
I believe this diff should do the right thing.
(I haven't tested it)
> diff -c login.c login.c.old
*** login.c Mon Nov 24 17:47:09 1997
--- login.c.old Mon Nov 24 17:41:51 1997
***************
*** 1092,1098 ****
memcpy(utmpx.ut_id, new_id, sizeof(utmpx.ut_id));
}
utmpx.ut_syslen = strlen(utmpx.ut_host);
!
getutmp(&utmpx, &utmp);
setutent();
/* ut_tmp = getutline(&utmp); Doing this probably breaks Solaris,
--- 1092,1098 ----
memcpy(utmpx.ut_id, new_id, sizeof(utmpx.ut_id));
}
utmpx.ut_syslen = strlen(utmpx.ut_host);
! pututxline(&utmpx);
getutmp(&utmpx, &utmp);
setutent();
/* ut_tmp = getutline(&utmp); Doing this probably breaks Solaris,
***************
*** 1099,1105 ****
not doing it happens to work everywhere. You probably don't want
to know. */
pututline(&utmp);
- pututxline(&utmpx);
if ((f = open("/usr/adm/wtmp", O_WRONLY|O_APPEND)) >= 0) {
write(f, (char *)&utmp, sizeof(utmp));
close(f);
--- 1099,1104 ----
