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

fcntl.2: F_ADD_SEALS requires that 'fd' be writable 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2015-01-09 09:47:10 +01:00
parent 5c87e70efb
commit 0ec4b9d721
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
man2/fcntl.2
View File

@ -1344,6 +1344,9 @@ If the current set of seals includes
Adding a seal that is already set is a no-op, in case
.B F_SEAL_SEAL
is not set already.
In order to place a seal, the file descriptor
.I fd
must be writable.
.TP
.BR F_GET_SEALS " (\fIvoid\fP; since Linux 3.17)"
Return (as the function result) the current set of seals
@ -1591,6 +1594,14 @@ does not refer to a directory.
Attempted to clear the
.B O_APPEND
flag on a file that has the append-only attribute set.
.TP
.B EPERM
.I cmd
was
.BR F_ADD_SEALS ,
but
.I fd
was not open for writing.
.SH CONFORMING TO
SVr4, 4.3BSD, POSIX.1-2001.
Only the operations