7.7. Posix System Databases

groupName :: GroupEntry -> String groupID :: GroupEntry -> GroupID groupMembers :: GroupEntry -> [String] getGroupEntryForID :: GroupID -> IO GroupEntry

getGroupEntryForID gid calls getgrgid to obtain the GroupEntry information associated with GroupID gid.

The operation may fail with:

NoSuchThing: There is no group entry for the GroupID.

getGroupEntryForName :: String -> IO GroupEntry

getGroupEntryForName name calls getgrnam to obtain the GroupEntry information associated with the group called name.

The operation may fail with:

NoSuchThing: There is no group entry for the name.

userName :: UserEntry -> String userID :: UserEntry -> UserID userGroupID :: UserEntry -> GroupID homeDirectory :: UserEntry -> String userShell :: UserEntry -> String getUserEntryForID :: UserID -> IO UserEntry

getUserEntryForID gid calls getpwuid to obtain the UserEntry information associated with UserID uid. The operation may fail with:

NoSuchThing: There is no user entry for the UserID.

getUserEntryForName :: String -> IO UserEntry

getUserEntryForName name calls getpwnam to obtain the UserEntry information associated with the user login name.

The operation may fail with:

NoSuchThing: There is no user entry for the name.