/* GLIB - Library of useful routines for C programming * * Copyright (C) 2020 Red Hat, Inc. * * Author: Jakub Jelen * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General * Public License along with this library; if not, see . */ #include #include #include #include static struct passwd my_pw; /* This is used in gutils.c used to make sure utility functions * handling user information do not crash on bad data (for example * caused by getpwuid returning some NULL elements. */ struct passwd * getpwuid (uid_t uid) { static struct passwd *(*real_getpwuid) (uid_t); struct passwd *pw; if (real_getpwuid == NULL) real_getpwuid = dlsym (RTLD_NEXT, "getpwuid"); pw = real_getpwuid (uid); my_pw = *pw; my_pw.pw_name = NULL; return &my_pw; }