Oskar Skog wrote:
Deleting a directory with the same name as a shortcut deletes everything in the current working directory.Tested on: CYGWIN_NT-10.0-19044 3.3.5-341.x86_64 2022-05-13 12:27 UTC x86_64 Cygwin CYGWIN_NT-10.0-22000 3.3.5-341.x86_64 2022-05-13 12:27 UTC x86_64 Cygwin Script to reproduce the bug (also in the tar): #!/bin/bash echo 'EVERY FILE IN THE CURRENT WORKING DIRECTORY WILL BE DELETED!' read -p "Enter 'sure' to continue: " var echo $var | grep -q sure || exit 1 do_stuff () { mkdir foo touch Foo.lnk if [ -d foo ]; then rm -rf foo fi } do_stuff do_stuff # All files in the current working directory are now GONE!
The first "do_stuff" removes "foo" as expected. The second call accidentally detects "foo" as a directory because stat("foo", .) returns "directory" and opendir("foo") succeeds unexpectedly. This behavior recurses.
Testcase: $ ls -a . .. $ touch link.lnk file.txt $ ls -a . .. file.txt link.lnk $ stat -c %F link.lnk regular empty file $ stat -c %F link directory $ ls -a link . .. file.txt link.lnk $ stat -c %F link/link/link/link directory $ ls link/link/link/link . .. file.txt link.lnk $ rm link/link/link/link rm: cannot remove 'link/link/link/link': Is a directory $ rm -rfv link/link/link/link removed 'link/link/link/link/file.txt' removed 'link/link/link/link/link.lnk' $ ls -a . .. -- Regards, Christian -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
