Changing another process' UID

[Enrico Weigelt]

Hi folks,


for properly porting Plan9's factotum to Linux, I need some way
to change an running process's uid/gid.

Plan9 has special devices /dev/caphash and /dev/capuse for that.

Some time ago I chose to hack up a different, a bit more generic 
way: adding special new uid / gid files to the /proc entries,
so another (root) process can change the uid of an already
running process.

I suppose there's a better way via Linux's caps api, isnt it ?


thx
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