Date: Wed, 1 Nov 1995 02:59:39 +0300 (MSK) From: =?KOI8-R?Q?=E1=CE=C4=D2=C5=CA_=FE=C5=D2=CE=CF=D7?= (aka Andrey A. Chernov, Black Mage) <ache@astral.msk.su> To: CVS-commiters@freefall.freebsd.org, cvs-CVSROOT@freefall.freebsd.org, Peter Wemm <peter@freefall.freebsd.org> Subject: Re: cvs commit: CVSROOT log_accum.pl Message-ID: <aBhXhbmmt7@ache.dialup.demos.ru> In-Reply-To: <aBREhbmuj6@ache.dialup.demos.ru>; from =?KOI8-R?Q?=E1=CE=C4=D2=C5=CA_=FE=C5=D2=CE=CF=D7?= at Wed, 1 Nov 1995 02:39:07 %2B0300 (MSK) References: <199510312317.PAA00986@freefall.freebsd.org> <aBREhbmuj6@ache.dialup.demos.ru>
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In message <aBREhbmuj6@ache.dialup.demos.ru>
=?KOI8-R?Q?=E1=CE=C4=D2=C5=CA_=FE=C5=D2=CE=CF=D7?= writes:
>In message <199510312317.PAA00986@freefall.freebsd.org> Peter Wemm
> writes:
>>peter 95/10/31 15:17:14 (peter/633/peter)
>> Modified: . log_accum.pl
>> Log:
>> For the moment, prefer the getpwuid($<) value over getlogin..
>> Remove debugging output again.. (which proved that getlogin returns the
>> wrong value sometimes..)
>getlogin depends on internal variable _logname_valid which is set
>after first sucessful getlogin call, then getlogin simple return
>its static data and even not issue syscall!!!
>How perl calls C-functions, it is the question...
>Maybe it call each C-function in the fork? I.e. _longname_valid
>always 0 for getlogin? Then it is perl bug, it seems that
>it change uids on the fly, then call getlogin for each of them.
You can to localize perl miss with simple script like:
#!/usr/bin/perl
while(1) {
print getlogin();
print " ";
print ((getpwuid($<))[0]);
print "\n";
}
If it works right, try to reproduce sequence from CVS .pl
exactly (in the infinite loop).
--
Andrey A. Chernov : And I rest so composedly, /Now, in my bed,
ache@astral.msk.su : That any beholder /Might fancy me dead -
http://dt.demos.su/~ache : Might start at beholding me, /Thinking me dead.
RELCOM Team,FreeBSD Team : E.A.Poe From "For Annie" 1849
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