owners can chgrp; clarifications

SCCS-vsn: lib/libc/sys/chown.2 6.5

diff --git a/usr/src/lib/libc/sys/chown.2 b/usr/src/lib/libc/sys/chown.2
index 89fd6cd..7761b45 100644 (file)
--- a/usr/src/lib/libc/sys/chown.2
+++ b/usr/src/lib/libc/sys/chown.2
@@ -2,7 +2,7 @@
 .\" All rights reserved.  The Berkeley software License Agreement
 .\" specifies the terms and conditions for redistribution.
 .\"
 .\" All rights reserved.  The Berkeley software License Agreement
 .\" specifies the terms and conditions for redistribution.
 .\"

-.\"    @(#)chown.2     6.4 (Berkeley) %G%
+.\"    @(#)chown.2     6.5 (Berkeley) %G%

 .\"
 .TH CHOWN 2 ""
 .UC 4
 .\"
 .TH CHOWN 2 ""
 .UC 4


@@ -27,26 +27,27 @@ has its
 and 
 .I group
 changed as specified.
 and 
 .I group
 changed as specified.

-Only the super-user may
-execute this call,
+Only the super-user
+may change the owner of the file,

 because if users were able to give files away,
 they could defeat the file-space accounting procedures.
 because if users were able to give files away,
 they could defeat the file-space accounting procedures.

+The owner of the file may change the group
+to a group of which he is a member.

 .PP
 On some systems,
 .I chown
 clears the set-user-id and set-group-id bits
 on the file
 to prevent accidental creation of
 .PP
 On some systems,
 .I chown
 clears the set-user-id and set-group-id bits
 on the file
 to prevent accidental creation of

-set-user-id and set-group-id programs
-owned by the super-user.
+set-user-id and set-group-id programs.

 .PP
 .I Fchown
 is particularly useful when used in conjunction
 with the file locking primitives (see
 .IR flock (2)).
 .PP
 .PP
 .I Fchown
 is particularly useful when used in conjunction
 with the file locking primitives (see
 .IR flock (2)).
 .PP

-Only one of the owner and group id's
-may be set by specifying the other as \-1.
+One of the owner or group id's
+may be left unchanged by specifying it as \-1.

 .SH "RETURN VALUE
 Zero is returned if the operation was successful;
 \-1 is returned if an error occurs, with a more specific
 .SH "RETURN VALUE
 Zero is returned if the operation was successful;
 \-1 is returned if an error occurs, with a more specific


@@ -107,4 +108,4 @@ The named file resides on a read-only file system.
 [EIO]
 An I/O error occurred while reading from or writing to the file system.
 .SH "SEE ALSO"
 [EIO]
 An I/O error occurred while reading from or writing to the file system.
 .SH "SEE ALSO"

-chmod(2), flock(2)
+chown(8), chgrp(1), chmod(2), flock(2)