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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2011 Andrew Hutchings
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <unistd.h>
#include <pwd.h>
#include <cstring>
class UserDetect
{
public:
const char* getUser() { return user.empty() ? "" : &user[0]; }
UserDetect()
{
long pw_len= sysconf(_SC_GETPW_R_SIZE_MAX);
struct passwd pw_struct;
struct passwd* pw_tmp_struct;
char *pw_buffer= new char[pw_len];
if (getpwuid_r(geteuid(), &pw_struct, pw_buffer, pw_len, &pw_tmp_struct) == 0)
user.assign(pw_struct.pw_name, pw_struct.pw_name + strlen(pw_struct.pw_name) + 1);
delete[] pw_buffer;
}
private:
std::vector<char> user;
};
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