tito wrote in <20240910210929.245867f7@devuan>: |On Tue, 10 Sep 2024 16:33:09 +0000 |"OCathain, Art (DSIT)" <art.ocath...@dsit.gov.uk> wrote: | |> Busybox seems to be happy to overwrite a readonly file using cp. \ |> A small example: |> |> echo foo > source_file |> touch dest_file |> chmod -w dest_file |> cp source_file dest_file |> |> I would expect the last line to fail, as indeed it does on Ubuntu \ |> and MacOS. Instead dest_file is overwritten, and is now read/write. ... |Hi, |you do this as regular user or root? | |tito@devuan:~$ echo foo > source_file |tito@devuan:~$ touch dest_file |tito@devuan:~$ ls -la dest_file |-rw-r--r-- 1 tito tito 0 Sep 10 21:04 dest_file |tito@devuan:~$ chmod -w dest_file |tito@devuan:~$ ls -la dest_file |-r--r--r-- 1 tito tito 0 Sep 10 21:04 dest_file |tito@devuan:~$ cp source_file dest_file |cp: cannot create regular file 'dest_file': Permission denied |tito@devuan:~$ su |root@devuan:/home/tito# cp source_file dest_file |root@devuan:/home/tito# ls -la dest_file |-r--r--r-- 1 tito tito 4 Sep 10 21:05 dest_file |root@devuan:/home/tito# cat dest_file |foo | |This example is with coreutlis cp.
Yeah it goes as far as that package maintainers hack installation scripts / Makefile rules which set 0555 to 0755 because they want to overcorrectly reflect reality. --steffen | |Der Kragenbaer, The moon bear, |der holt sich munter he cheerfully and one by one |einen nach dem anderen runter wa.ks himself off |(By Robert Gernhardt) _______________________________________________ busybox mailing list busybox@busybox.net http://lists.busybox.net/mailman/listinfo/busybox
