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- .th GETGID II 5/15/74
- .sh NAME
- getgid \*- get group identifications
- .sh SYNOPSIS
- (getgid = 47.; not in assembler)
- .br
- .ft B
- sys getgid
- .ft B
- .s3
- getgid( )
- .ft R
- .sh DESCRIPTION
- .it Getgid
- returns a word (in r0),
- the low byte of which contains
- the real group ID of
- the current process.
- The high byte contains the effective group ID
- of the current process.
- The real group ID identifies the group of the person who is logged in,
- in contradistinction to the effective group ID, which
- determines his access permission at the moment.
- It is thus useful to programs which operate using
- the ``set group ID'' mode, to find out who invoked them.
- .sh "SEE ALSO"
- setgid (II)
- .sh DIAGNOSTICS
- \*-
-