GETUID(II) 5/15/74 GETUID(II)
NAME
getuid - get user identifications
SYNOPSIS
(getuid = 24.)
sys getuid
getuid( )
DESCRIPTION
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.
SEE ALSO
setuid (II)
DIAGNOSTICS
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