NAME
getgrouplist —
calculate partial group access
list
LIBRARY
Standard system libraries.
SYNOPSIS
#include
<unistd.h>
int
getgrouplist(const
char *name, int
basegid, int
*groups, int
*ngroups);
DESCRIPTION
The
getgrouplist()
function obtains information from
opendirectoryd(8) to construct the group access list for the user
specified in name. The basegid
is automatically included in the groups list. Typically this value is given
as the default group number from the user's account record.
The resulting group list is returned in the array pointed to by groups. The caller specifies the size of the groups array in the integer pointed to by ngroups; the actual number of groups found is returned in ngroups.
RETURN VALUES
The getgrouplist() function returns 0 on
success. If the size of the group list is too small to hold all the user's
groups, getgrouplist() returns -1 to indicate
failure. In this case, the group array will be filled with as many groups as
will fit.
FILES
- /etc/group
- group membership list
SEE ALSO
HISTORY
The getgrouplist() function first appeared
in 4.4BSD.