Supplementary groups

ruby-talk
1

Is there a function for setting supllementary groups? I don’t see a method
documented in Process.

I want the equivalent of man (2) setgroups:

  • Function: int setgroups (size_t COUNT, gid_t *GROUPS)
    This function sets the process’s supplementary group IDs. It can
    only be called from privileged processes. The COUNT argument
    specifies the number of group IDs in the array GROUPS.
2

Andrew Walrond wrote:

Is there a function for setting supllementary groups? I don’t see a method
documented in Process.

I want the equivalent of man (2) setgroups:

  • Function: int setgroups (size_t COUNT, gid_t *GROUPS)
    This function sets the process’s supplementary group IDs. It can
    only be called from privileged processes. The COUNT argument
    specifies the number of group IDs in the array GROUPS.

Don’t believe it was there for Ruby 1.6, but in Ruby 1.8 it’s just:

 Process.groups = [gid1, gid2, ...]

where the gidx values are either group numbers or names.

Hope this helps,

Lyle