1 /* Copyright (C) 2005-2022 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <https://www.gnu.org/licenses/>. */ 17 18 #include <errno.h> 19 #include <unistd.h> 20 21 22 int __getgroups_chk(int size,__gid_t list[],size_t listlen)23__getgroups_chk (int size, __gid_t list[], size_t listlen) 24 { 25 if (__glibc_unlikely (size < 0)) 26 { 27 __set_errno (EINVAL); 28 return -1; 29 } 30 31 if (__glibc_unlikely (size * sizeof (__gid_t) > listlen)) 32 __chk_fail (); 33 34 return __getgroups (size, list); 35 } 36