4 * The secure anycast tunneling protocol (satp) defines a protocol used
5 * for communication between any combination of unicast and anycast
6 * tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
7 * mode and allows tunneling of every ETHER TYPE protocol (e.g.
8 * ethernet, ip, arp ...). satp directly includes cryptography and
9 * message authentication based on the methodes used by SRTP. It is
10 * intended to deliver a generic, scaleable and secure solution for
11 * tunneling and relaying of packets of any protocol.
14 * Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl,
15 * Christian Pointner <satp@wirdorange.org>
17 * This file is part of Anytun.
19 * Anytun is free software: you can redistribute it and/or modify
20 * it under the terms of the GNU General Public License version 3 as
21 * published by the Free Software Foundation.
23 * Anytun is distributed in the hope that it will be useful,
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 * GNU General Public License for more details.
28 * You should have received a copy of the GNU General Public License
29 * along with anytun. If not, see <http://www.gnu.org/licenses/>.
36 int execScript(std::string const& script, std::string const& ifname, std::string const& ifnode)
42 for (fd=getdtablesize();fd>=0;--fd) // close all file descriptors
45 fd = open("/dev/null",O_RDWR); // stdin
47 cLog.msg(Log::PRIO_WARNING) << "can't open stdin";
49 if(dup(fd) == -1) // stdout
50 cLog.msg(Log::PRIO_WARNING) << "can't open stdout";
51 if(dup(fd) == -1) // stderr
52 cLog.msg(Log::PRIO_WARNING) << "can't open stderr";
54 execl("/bin/sh", "/bin/sh", script.c_str(), ifname.c_str(), ifnode.c_str(), (char*)NULL);
55 // if execl return, an error occurred
56 cLog.msg(Log::PRIO_ERROR) << "error on executing script: " << AnytunErrno(errno);
60 waitpid(pid, &status, 0);
62 cLog.msg(Log::PRIO_NOTICE) << "script '" << script << "' returned " << WEXITSTATUS(status);
63 else if(WIFSIGNALED(status))
64 cLog.msg(Log::PRIO_NOTICE) << "script '" << script << "' terminated after signal " << WTERMSIG(status);
66 cLog.msg(Log::PRIO_ERROR) << "executing script: unkown error";