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- .th GETUID II 5/15/74
- .sh NAME
- getuid \*- get user identifications
- .sh SYNOPSIS
- (getuid = 24.)
- .br
- .ft B
- sys getuid
- .ft B
- .s3
- getuid( )
- .ft R
- .sh DESCRIPTION
- .it Getuid
- returns a word (in r0),
- the low byte of which contains
- the real user ID of
- the current process.
- The high byte contains the effective user ID
- of the current process.
- The real user ID identifies the person who is logged in,
- in contradistinction to the effective user ID, which
- determines his access permission at the moment.
- It is thus useful to programs which operate using
- the ``set user ID'' mode, to find out who invoked them.
- .sh "SEE ALSO"
- setuid (II)
- .sh DIAGNOSTICS
- \*-
-