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/*
* anytun
*
* The secure anycast tunneling protocol (satp) defines a protocol used
* for communication between any combination of unicast and anycast
* tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
* mode and allows tunneling of every ETHER TYPE protocol (e.g.
* ethernet, ip, arp ...). satp directly includes cryptography and
* message authentication based on the methodes used by SRTP. It is
* intended to deliver a generic, scaleable and secure solution for
* tunneling and relaying of packets of any protocol.
*
*
* Copyright (C) 2007-2009 Othmar Gsenger, Erwin Nindl,
* Christian Pointner <satp@wirdorange.org>
*
* This file is part of Anytun.
*
* Anytun 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, either version 3 of the License, or
* any later version.
*
* Anytun 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 anytun. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#ifndef ANYTUN_sysexec_hpp_INCLUDED
#define ANYTUN_sysexec_hpp_INCLUDED
#include <algorithm>
#include <iostream> // todo remove
#include <windows.h>
SysExec::~SysExec()
{
if(!closed_) {
CloseHandle(process_info_.hProcess);
CloseHandle(process_info_.hThread);
}
}
STARTUPINFOA getStartupInfo()
{
STARTUPINFOA startup_info;
startup_info.cb = sizeof(STARTUPINFOA);
GetStartupInfoA(&startup_info);
//startup_info.dwFlags = STARTF_USESTDHANDLES;
//startup_info.hStdInput = CreateFile("NUL", GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, 0, 0, 0); // INVALID_HANDLE_VALUE;
//startup_info.hStdOutput = CreateFile("NUL", GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, 0, 0, 0); // INVALID_HANDLE_VALUE;
//startup_info.hStdError = CreateFile("NUL", GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, 0, 0, 0); // INVALID_HANDLE_VALUE;
startup_info.dwFlags |= STARTF_USESHOWWINDOW;
startup_info.wShowWindow = SW_HIDE;
return startup_info;
}
char const* const BATCH_FILE_EXTS[] = { ".bat", ".cmd" };
int const BATCH_FILE_EXTS_COUNT = sizeof(BATCH_FILE_EXTS) / sizeof(BATCH_FILE_EXTS[0]);
bool endsWith(std::string const& string, std::string const& suffix)
{
return string.find(suffix, string.size() - suffix.size()) != std::string::npos;
}
void SysExec::doExec(StringVector args, StringList env_param)
{
std::vector<char> arguments;
bool isBatchFile = false;
for(int i = 0; i < BATCH_FILE_EXTS_COUNT; ++i) {
if(endsWith(script_, BATCH_FILE_EXTS[i])) {
isBatchFile = true;
break;
}
}
if(isBatchFile) {
std::string const BATCH_INTERPRETER = "cmd /c \"";
arguments.insert(arguments.end(), BATCH_INTERPRETER.begin(), BATCH_INTERPRETER.end());
}
arguments.push_back('\"');
arguments.insert(arguments.end(), script_.begin(), script_.end());
arguments.push_back('\"');
arguments.push_back(' ');
for(StringVector::const_iterator it = args.begin(); it != args.end(); ++it) {
arguments.push_back('\"');
arguments.insert(arguments.end(), it->begin(), it->end());
arguments.push_back('\"');
arguments.push_back(' ');
}
if(isBatchFile) {
arguments.push_back('\"');
}
arguments.push_back(0);
STARTUPINFOA startup_info = getStartupInfo();
std::map<std::string, std::string> envDict;
for(StringList::const_iterator it = env_param.begin(); it != env_param.begin(); ++it) {
size_t delimiter_pos = it->find('=');
envDict.insert(std::make_pair(it->substr(0, delimiter_pos), it->substr(delimiter_pos + 1)));
}
std::vector<char> env;
for(std::map<std::string, std::string>::iterator it = envDict.begin(); it != envDict.end(); ++it) {
env.insert(env.end(), it->first.begin(), it->first.end());
env.push_back(0);
}
env.push_back(0);
if(!CreateProcessA(NULL,
&arguments[0],
NULL,
NULL,
false,
NULL,
&env[0],
NULL,
&startup_info,
&process_info_
)) {
cLog.msg(Log::PRIO_ERROR) << "executing script '" << script_ << "' CreateProcess() error: " << GetLastError();
return;
}
}
int SysExec::waitForScript()
{
DWORD result = WaitForSingleObject(process_info_.hProcess, INFINITE);
assert(WAIT_OBJECT_0 == result); // WAIT_FAILED, WAIT_TIMEOUT ... ???
bool success = GetExitCodeProcess(process_info_.hProcess, &return_code_) != 0;
assert(true == success); // false -> HU?
CloseHandle(process_info_.hProcess);
CloseHandle(process_info_.hThread);
closed_ = true;
return static_cast<int>(return_code_);
}
void SysExec::waitAndDestroy(SysExec*& s)
{
if(!s) {
return;
}
s->waitForScript();
cLog.msg(Log::PRIO_NOTICE) << "script '" << s->script_ << "' returned " << s->return_code_;
delete(s);
s = NULL;
}
#endif // ANYTUN_sysexec_hpp_INCLUDED
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