group IDs. Subsequently, Linux 2.4 added setfsgid32 () supporting 32-bit IDs. The glibc setfsgid () wrappergroup IDs. Subsequently, Linux 2.4 added setfsgid32 () supporting 32-bit IDs. The glibc setfsgid () wrapperprefix) setdomainname (2) 1.0 setfsgid (2) 1.2 setfsgid32 (2) 2.4 setfsuid (2) 1.2 setfsuid32