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/* GLIB - Library of useful routines for C programming
*
* Copyright (C) 2020 Red Hat, Inc.
*
* Author: Jakub Jelen <jjelen@redhat.com>
*
* 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 <http://www.gnu.org/licenses/>.
*/
#include <dlfcn.h>
#include <pwd.h>
#include <sys/types.h>
#include <unistd.h>
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;
}
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