Server option PrintLastLog does not work on AIX

[miguel.sanders at arcelormittal.com]

Hi

Apparently, the server option "PrintLastLog" does not work on AIX.
The last login time is always displayed, disregarding the option.
When browsing the code, I found out there are several functions in loginrec.c which solely handle the processing of the last login info (login_get_lastlog, getlast_entry).
Since AIX does not provide such a function natively, the configure script sets the DISABLE_LASTLOG define. 
A small code snippet from getlast_entry in loginrec.c shows this

#if defined(DISABLE_LASTLOG)
        /* On some systems we shouldn't even try to obtain last login
         * time, e.g. AIX */
        return (0);

On the other hand, when issuing the AIX loginsuccess() call (which writes a new login record), the last login record can be retrieved by that very same call.
If we look at port-aix.c, we can see the following:

if (loginsuccess((char *)user, (char *)host, (char *)ttynm, &msg) == 0) {
	success = 1;
            if (msg != NULL && loginmsg != NULL && !msg_done) {
                     debug("AIX/loginsuccess: msg %s", msg);
                     buffer_append(loginmsg, msg, strlen(msg));
                     xfree(msg);
                     msg_done = 1;
            }
 }


The pointer "msg" points to the new last login info for the user and it always appended to the loginmsg buffer. 
The buffer_append call should only be called if options.print_lastlog is set.
Bugzilla item # 1595 was created to address this issue.

Met vriendelijke groet
Best regards
Bien à vous

Miguel SANDERS
ArcelorMittal Gent

UNIX Systems & Storage
IT Supply Western Europe | John Kennedylaan 51
B-9042 Gent

T +32 9 347 3538 | F +32 9 347 4901 | M +32478 805 023
E miguel.sanders at arcelormittal.com
www.arcelormittal.com/gent


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