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Re^4: Variable as name of array

by choroba (Chancellor)
on Nov 01, 2012 at 22:56 UTC ( #1001882=note: print w/replies, xml ) Need Help??


in reply to Re^3: Variable as name of array
in thread Variable as name of array

Or even, horrors, a slice:
use Data::Dumper; my @names = qw/ A B C D /; my %order; @order{ @names } = @names; print Dumper \%order; __END__ Prints: $VAR1 = { 'A' => 'A', 'D' => 'D', 'C' => 'C', 'B' => 'B' };
لսႽ ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

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[Corion]: Ah - if that information is saved in a file, then you could theoretically spam that file and confuse getlogin(). So, don't use it for authentication :)
[tye]: that is what getlogin() certainly *used* to do. I don't believe that is what it certainly should do.
[davido]: /var/run/utmp is 664 i think.
[tye]: Note that my "man getlogin" says that it uses stdin when it should use /dev/tty (calling a glibc bug). But that does not appear to be the case when I test it. But maybe Perl's getlogin() is not using glibc's getlogin().
[oiskuu]: well, run a strace and see what the getlogin does for you.... As I said. SELinux probably has those security labels. But not regular linux.
[tye]: for example, read https://unix. stackexchange.com/ questions/146138/ loginuid-should-be -allowed-to-change -or-not-mutable-or -not
[tye]: I'm not using SELinux and it certainly appears to disagree with you. shrug
[tye]: Since you brought up /proc, oiskuu, I didn't see you respond to my suggestion of 'loginuid'. Does your /proc not have such?

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