[PATCH manpages] getgroups.2: Document unprivileged setgroups calls

Josh Triplett
2014-11-15T09:02:02Z

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
---
This should probably also include appropriate documentation for what
kernel introduces this behavior.

man2/getgroups.2 | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/man2/getgroups.2 b/man2/getgroups.2
index 373c204..edca37c 100644
--- a/man2/getgroups.2
+++ b/man2/getgroups.2
@@ -81,9 +81,10 @@ to be used in a further call to
.PP
.BR setgroups ()
sets the supplementary group IDs for the calling process.
-Appropriate privileges (Linux: the
+Any process may drop groups from its list, but adding groups requires
+appropriate privileges (Linux: the
.B CAP_SETGID
-capability) are required.
+capability).
The
.I size
argument specifies the number of supplementary group IDs
--
2.1.3