mirror of https://github.com/mkerrisk/man-pages
msgctl.2: Add information on permission bits (based on sysvipc(7) text)
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
parent
cce90cf33a
commit
a63243b9e2
|
@ -139,6 +139,24 @@ struct ipc_perm {
|
|||
.EE
|
||||
.in
|
||||
.PP
|
||||
The least significant 9 bits of the
|
||||
.I mode
|
||||
field of the
|
||||
.I ipc_perm
|
||||
structure define the access permissions for the message queue.
|
||||
The permission bits are as follows:
|
||||
.TS
|
||||
l l.
|
||||
0400 Read by user
|
||||
0200 Write by user
|
||||
0040 Read by group
|
||||
0020 Write by group
|
||||
0004 Read by others
|
||||
0002 Write by others
|
||||
.TE
|
||||
.PP
|
||||
Bits 0100, 0010, and 0001 (the execute bits) are unused by the system.
|
||||
.PP
|
||||
Valid values for
|
||||
.I cmd
|
||||
are:
|
||||
|
|
Loading…
Reference in New Issue