Function getgrgid_r
pub unsafe extern "C" fn getgrgid_r(gid: gid_t, grp: *mut group, buf: *mut c_char, buflen: size_t, result: *mut *mut group) -> c_intgetgrgid_rpub unsafe extern "C" fn getgrgid_r(gid: gid_t, grp: *mut group, buf: *mut c_char, buflen: size_t, result: *mut *mut group) -> c_int