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setfsgid.2: Wording improvements 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2013-08-09 09:23:49 +02:00
parent 2ec26c2b30
commit 4069bc44a6
1 changed files with 6 additions and 6 deletions
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12
man2/setfsgid.2
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@ -38,14 +38,15 @@ setfsgid \- set group identity used for filesystem checks
.SH DESCRIPTION
The system call
.BR setfsgid ()
sets the group ID that the Linux kernel uses to check for all accesses
changes the value of the caller's filesystem group ID\(emthe
group ID that the Linux kernel uses to check for all accesses
to the filesystem.
Normally, the value of
.I fsgid
the filesystem group ID
will shadow the value of the effective group ID.
In fact, whenever the
effective group ID is changed,
.I fsgid
the filesystem group ID
will also be changed to the new value of the effective group ID.
Explicit calls to
@ -62,9 +63,8 @@ is a security hole that can expose it to unwanted signals.
.BR setfsgid ()
will succeed only if the caller is the superuser or if
.I fsgid
matches either the real group ID, effective group ID,
saved set-group-ID, or the current value of
.IR fsgid .
matches either the caller's real group ID, effective group ID,
saved set-group-ID, or current the filesystem user ID.
.SH RETURN VALUE
On both success and failure,
this call returns the previous filesystem group ID of the caller.