### Psetregid()

LONG Psetregid(rgid, egid)

WORD rgid;
WORD egid;

| Psetregid() sets the real and/or effective group id for the calling process.
Opcode | 335 (0x014f)
Availability | Available when a 'MiNT' cookie with a version of at least 1.12 exists.
Parameters | rgid specifies the new real group id and egid specifies the new effective group id for the calling process. If either argument is -1, only the other gets changed.
Binding |
    move.w	egid,-(sp)
    move.w	rgid,-(sp)
    move.w	#$014f,-(sp)
    trap	#1
    addq.l	#6,sp
Return Value | Psetregid() returns E_OK on success or a negative GEMDOS error code otherwise.
Caveats | Setting group ids needs root privileges.
Comments | This call is often used by daemon processes to downgrade their privileges to user level.
See Also | Psetreuid(), Psetegid()