Re: Implementation of sys/capabilities.h

[Igmar Palsenberg <igmar@palsenberg.com>]

>> I'm in the works of implementing capability support within musl. This we need to implement if you ask me :
>> 
>> cap_init()
>> cap_free()
>> cap_dup()
>> cap_get_flag()
>> cap_set_flag()
>> cap_clear()
>> cap_get_proc()
>> cap_set_proc()
> 
> Why in Musl out of interest? They are not in other libc's, and people
> expect to link to libcap for them surely. And some people argue that
> the interfaces are not very well designed (indeed libcap seems to be
> adding extra ones not in the withdrawn posix draft), eg see
> http://people.redhat.com/sgrubb/libcap-ng/

It's open for debate. The syscalls need to be there (including the structs the kernel uses), and I've got those in a patch.

I agree the interface is shit : Way to complicated, while only need some simple functions, with a bitmap to represent them. Why implement it ?
It's the only thing we got, and programs assume it's POSIX, so it should be present. Yes, it's broken, but capabilities are a needed feature if you ask me.




	Igmar