From: "João Eiras" <joao.eiras@gmail.com>
To: cygwin@cygwin.com
Subject: Issue with resolving symlinks (realpath, readlink, etc)
Date: Mon, 11 Dec 2017 19:58:00 -0000 [thread overview]
Message-ID: <CAJ+sA07Ek0oFmmXJHqgsiciOJ2=fH3QNFPA0rAfnmev-TMU++A@mail.gmail.com> (raw)
Hi.
Programs and functions that rely in realpath() are broken.
Example:
$ cd
$ ln -s /var symlink
$ cd symlink
$ readlink -m .
/var
$ mkdir subfolder
$ cd subfolder
$ readlink -m .
/home/user/symlink/subfolder
# should be /var/subfolder
This is the block I think is causing problems, as it breaks the loop
as soon as a real file is found, instead of iterating further upwards
resolving ancestors.
https://cygwin.com/git/gitweb.cgi?p=newlib-cygwin.git;a=blob;f=winsup/cygwin/path.cc#l994
There also a comment at line 736 that says:
"Scan path_copy from right to left looking either for a symlink or an
actual existing file. If an existing file is found, just return. If a
symlink is found, exit the for loop."
Thank you.
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next reply other threads:[~2017-12-11 17:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-11 19:58 João Eiras [this message]
2017-12-12 14:14 ` Corinna Vinschen
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