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Describe POSIX saved IDs behaviour better

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ache 1996-09-03 11:32:01 +00:00
parent 90c8dabe75
commit 8e6a325bf4
1 changed files with 19 additions and 5 deletions
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24
lib/libc/sys/setuid.2
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@ -30,7 +30,7 @@
.\" SUCH DAMAGE.
.\"
.\" @(#)setuid.2 8.1 (Berkeley) 6/4/93
.\" $Id: setuid.2,v 1.2 1996/08/29 21:24:16 wosch Exp $
.\" $Id: setuid.2,v 1.3 1996/09/01 22:42:13 ache Exp $
.\"
.Dd June 4, 1993
.Dt SETUID 2
@ -59,8 +59,15 @@ function
sets the real and effective
user IDs and the saved set-user-ID of the current process
to the specified value.
.\" Comment out next line for !_POSIX_SAVED_IDS
The real user ID and the saved set-user-ID are changed only if the effective user ID is that of the super user.
.\" Comment out next block for !_POSIX_SAVED_IDS
The real user ID and the saved set-user-ID are changed only if the
effective user ID is that of the super user.
I.e.
.Fn setuid
function is equal to
.Fn seteuid
function if the effective user ID is not that of the super user.
.\" End of block
The
.Fn setuid
function is permitted if the specified ID is equal to the real user ID
@ -74,8 +81,15 @@ function
sets the real and effective
group IDs and the saved set-group-ID of the current process
to the specified value.
.\" Comment out next line for !_POSIX_SAVED_IDS
The real group ID and the saved set-group-ID are changed only if the effective user ID is that of the super user.
.\" Comment out next block for !_POSIX_SAVED_IDS
The real group ID and the saved set-group-ID are changed only if the
effective user ID is that of the super user.
I.e.
.Fn setgid
function is equal to
.Fn setegid
function if the effective user ID is not that of the super user.
.\" End of block
The
.Fn setgid
function is permitted if the specified ID is equal to the real group ID