LDP
/
man-pages
mirror of https://github.com/mkerrisk/man-pages
0
1
Fork 0
Code Releases Activity

setfsuid.2: Wording improvements 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2013-08-09 09:23:38 +02:00
parent 68f2e81eda
commit 2ec26c2b30
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
man2/setfsuid.2
View File

@ -38,14 +38,15 @@ setfsuid \- set user identity used for filesystem checks
.SH DESCRIPTION
The system call
.BR setfsuid ()
sets the user ID that the Linux kernel uses to check for all accesses
changes the value of the caller's filesystem user ID\(emthe
user ID that the Linux kernel uses to check for all accesses
to the filesystem.
Normally, the value of
.I fsuid
the filesystem user ID
will shadow the value of the effective user ID.
In fact, whenever the
effective user ID is changed,
.I fsuid
the filesystem user ID
will also be changed to the new value of the effective user ID.
Explicit calls to
@ -62,9 +63,8 @@ is a security hole that can expose it to unwanted signals.
.BR setfsuid ()
will succeed only if the caller is the superuser or if
.I fsuid
matches either the real user ID, effective user ID, saved set-user-ID, or
the current value of
.IR fsuid .
matches either the caller's real user ID, effective user ID,
saved set-user-ID, or current filesystem user ID.
.SH RETURN VALUE
On both success and failure,
this call returns the previous filesystem user ID of the caller.