Cannot run program readlink

Good v4. Bad v3. The earliest version of linux kernel the fix is included in is 4. But the next regression fix wasn't backported? Vanuan did you make any progress on this?

I have exactly this problem with opendkim in an Alpine container running on CentOS 7. Vanuan , just hoping you put in a ticket in redhat's bugzilla. Thanks for tracking this down though.

For the moment I dropped alpine for this container. Skip to content. Star 62k. Hide Permalink. Kohsuke Kawaguchi added a comment - Do you know any equiavlent command in HP-UX that works instead of readlink? Fulvio Cavarretta added a comment - Well, no But why do you need to use it to retrieve artifacts?

Show Fulvio Cavarretta added a comment - Well, no Marco Biancini added a comment - Stacktrace follows. Thomas Jenny added a comment - If you skip privilege error, is it possible to make a symlink on windows XP? I was afraid you will say that. Microsoft didn't implement it - that makes it this idea even more questionable. Many parts of Windows XP, probably, do not expect "symbolic links" to exit.

What will users do, if they OS will get confused? I think it is bad idea to implement CreateSymbolicLink by hand. Even for testing, this is questionable. And we're doing it in a "controlled" environment - during our tests. And I don't see alternative to test our bugs.

I'm not talking about correct CreateSymbolicLink emulation. I think Readlink should not panic by any input data. And if we transfer that file to windows 10 I don't know it is possible or not , we can propagate malformed data. Or there is a something easier way to make malformed input on windows I just want an evidence for necessity of validation. But it doesn't well explained.

Maybe some versions are not. If window XP doesn't reserve symbolic tag, there are possibility to make same structure as a malformed data. I've retried it. But results are nothing changed. It can create a normal symlink, can't create an invalid symlink.

So I gave up making an invalid symlink on Windows Second, I tried to create an invalid symlink on Windows XP, and it succeeded. Third, I mounted the drive which contains invalid symlinks on Windows I called os. I still think we should validate it, and there are similar issues that their CLs are without testing. I am sorry, but I don't understand your point.

Thank you for all that explanation, but I don't see what all this relates to. If it relates to my CL , then comment my code there. If you are discussing solution to this current issue, then I didn't even think about that. I think we need some test first.

Skip to content. Star New issue. Jump to bottom. Milestone Go1. Copy link. Please answer these questions before submitting your issue. What version of Go are you using go version? Windows Server TP5, amd64 What did you do? If possible, provide a recipe for reproducing the error. A complete runnable program is good. A link on play.

How can I do that? What are the steps? Learn more. Why can't certain programs like readlink take input from a pipe? Ask Question. Asked 8 years, 3 months ago. Active 8 years, 3 months ago. Viewed 12k times. Improve this question. Nathan Wallace Nathan Wallace 1 1 gold badge 3 3 silver badges 11 11 bronze badges.

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Thanks for that.