Similar to suid binaries, abuild will now error out if the package
includes binaries with setcap(8) capabilities but doesn't have `setcap`
in `$options`. This eases identifying package which ship binaries
with extra capabilities.
Furthermore, if these binaries are executable by others a warning is
emitted. This warning could be changed to an error in the future.
The recommendation is to make such binaries only executable by owner
and group, thereby requiring the system administrator to explicitly
add users to a specific group in order to give them accesses to these
capabilities.
See: https://gitlab.alpinelinux.org/alpine/tsc/-/issues/45
Discussion: This change requires abuild to depend on the `libcap`
package for the `getcap` binary. It does not seem to be possible
at the moment to use scanelf(1) to identify these binaries.
Hugo Osvaldo Barrera
Sertonix
Sören Tempel
Sören Tempel
Rodrigo Lourenço