int
getgroups(
int gidsetlen
, gid_t *gidset
)
)
gets the current group access list of the current user process
and stores it in the array
gidset
.
The parameter
gidsetlen
indicates the number of entries that may be placed in
gidset
.
getgroups(
)
returns the actual number of groups returned in
gidset
.
No more than
{NGROUPS_MAX}
will ever
be returned.
If
gidsetlen
is 0,
getgroups(
)
returns the number of groups without modifying the
gidset
array.
This system call only returns the secondary groups.
)
are:
EINVAL
]
gidsetlen
is non-zero and is smaller than the number of groups in the group set.
EFAULT
]
gidset
specifies
an invalid address.
)
function conforms to
ISO/IEC 9945-1:1990 (``POSIX.1'') .
)
function call appeared in
4.2BSD.