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https://github.com/tuxbox-fork-migrations/recycled-ni-neutrino.git
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64b0e753d8
Origin commit data
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Branch: ni/coolstream
Commit: ddc9229efc
Author: Jacek Jendrzej <overx300@gmail.com>
Date: 2013-04-18 (Thu, 18 Apr 2013)
------------------
No further description and justification available within origin commit message!
------------------
This commit was generated by Migit
388 lines
8.3 KiB
C++
388 lines
8.3 KiB
C++
/*
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* $Header: /cvs/tuxbox/apps/misc/libs/libnet/network_interfaces.cpp,v 1.6 2003/03/20 15:32:52 thegoodguy Exp $
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*
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* (C) 2003 by thegoodguy <thegoodguy@berlios.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <fstream>
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#include <list>
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#include <map>
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#include <string>
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#include <sstream>
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#include <unistd.h>
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/*
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* Known bugs:
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* -----------
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*
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* - extension of lines across multiple lines using \ is not supported
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*
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*/
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bool read_file(const std::string &filename, std::list<std::string> &line)
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{
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std::string s;
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std::ifstream in(filename.c_str());
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line.clear();
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if (!in.is_open())
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return false;
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while (getline(in, s))
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line.push_back(s);
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return true;
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}
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bool write_file(const std::string &filename, const std::list<std::string> &line)
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{
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std::ofstream out(filename.c_str());
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if (!out.is_open())
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return false;
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for (std::list<std::string>::const_iterator it = line.begin(); it != line.end(); ++it)
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out << (*it) << std::endl;
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return true;
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}
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std::list<std::string>::iterator add_attributes(const std::map<std::string, std::string> &attribute, std::list<std::string> &line, std::list<std::string>::iterator here)
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{
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for (std::map<std::string, std::string>::const_iterator it = attribute.begin(); it != attribute.end(); ++it)
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{
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std::ostringstream out;
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out << '\t' << (it -> first) << ' ' << (it -> second);
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line.insert(here, out.str());
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}
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return here;
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}
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std::string remove_interface_from_line(const std::string &interface, const std::string &line)
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{
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std::string s;
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std::istringstream in(line.c_str());
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std::ostringstream out;
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bool contains_at_least_one_interface = false;
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if (in >> s)
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{
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out << s; /* auto */
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while (in >> s)
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{
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if (s != interface)
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{
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out << ' ' << s;
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contains_at_least_one_interface = true;
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}
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}
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}
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return (contains_at_least_one_interface ? out.str() : "");
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}
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bool write_interface(const std::string &filename, const std::string &name, const bool automatic_start, const std::string &family, const std::string &method, const std::map<std::string, std::string> &attribute)
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{
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std::string s;
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std::list<std::string> line;
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bool found = false;
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read_file(filename, line); /* ignore return value */
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for (std::list<std::string>::iterator it = line.begin(); it != line.end(); )
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{
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{
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std::istringstream in((*it).c_str());
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if (!(in >> s))
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{
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++it;
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continue;
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}
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if (s != std::string("iface"))
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{
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if (s == std::string("auto"))
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{
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bool advance = true;
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while (in >> s)
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{
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if (s == std::string(name))
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{
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*it = remove_interface_from_line(name, *it);
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if ((*it).empty())
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{
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it = line.erase(it); /* erase advances it */
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advance = false;
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}
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break;
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}
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}
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if (advance)
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++it;
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}
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else
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++it;
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continue;
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}
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if (!(in >> s))
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{
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++it;
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continue;
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}
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if (s != std::string(name))
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{
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++it;
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continue;
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}
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}
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found = true;
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/* replace line */
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std::ostringstream out;
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out << "iface " << name << ' ' << family << ' ' << method;
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(*it) = out.str();
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if (automatic_start)
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line.insert(it, "auto " + name);
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/* add attributes */
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++it;
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it = add_attributes(attribute, line, it);
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/* remove current attributes */
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while (it != line.end())
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{
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std::istringstream in((*it).c_str());
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if (!(in >> s)) /* retain empty lines */
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{
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++it;
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continue;
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}
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if (s[0] == '#') /* retain comments */
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{
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++it;
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continue;
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}
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if (s == std::string("iface"))
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break;
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if (s == std::string("auto"))
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break;
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if (s == std::string("mapping"))
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break;
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it = line.erase(it);
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}
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}
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if (!found)
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{
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std::ostringstream out;
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if (automatic_start)
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line.push_back("auto " + name);
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out << "iface " << name << ' ' << family << ' ' << method;
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line.push_back(out.str());
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add_attributes(attribute, line, line.end());
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}
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return write_file(filename, line);
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}
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bool read_interface(const std::string &filename, const std::string &name, bool &automatic_start, std::string &family, std::string &method, std::map<std::string, std::string> &attribute)
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{
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std::string s;
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std::string t;
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std::ifstream in(filename.c_str());
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bool advance = true;
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automatic_start = false;
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attribute.clear();
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if (!in.is_open())
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return false;
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while (true)
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{
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if (advance)
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{
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if (!getline(in, s))
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break;
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}
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else
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advance = true;
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{
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std::istringstream in2(s.c_str());
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if (!(in2 >> s))
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continue;
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if (s != std::string("iface"))
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{
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if (s == std::string("auto"))
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{
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while (in2 >> s)
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{
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if (s == std::string(name))
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{
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automatic_start = true;
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break;
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}
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}
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}
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continue;
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}
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if (!(in2 >> s))
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continue;
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if (s != std::string(name))
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continue;
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if (!(in2 >> s))
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continue;
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if (!(in2 >> t))
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continue;
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family = s;
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method = t;
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}
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while (true)
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{
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if (!getline(in, s))
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return true;
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std::istringstream in3(s.c_str());
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if (!(in3 >> t)) /* ignore empty lines */
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continue;
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if (t[0] == '#') /* ignore comments */
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continue;
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if (t == std::string("iface"))
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break;
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if (t == std::string("auto"))
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break;
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if (t == std::string("mapping"))
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break;
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if (!(in3 >> s))
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continue;
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attribute[t] = s;
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}
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advance = false;
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}
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return true;
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}
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bool getInetAttributes(const std::string &name, bool &automatic_start, std::string &address, std::string &netmask, std::string &broadcast, std::string &gateway)
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{
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std::string family;
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std::string method;
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std::map<std::string, std::string> attribute;
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if (!read_interface("/etc/network/interfaces", name, automatic_start, family, method, attribute))
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return false;
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if (family != "inet")
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return false;
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if (method != "static")
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return false;
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address = "";
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netmask = "";
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broadcast = "";
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gateway = "";
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for (std::map<std::string, std::string>::const_iterator it = attribute.begin(); it != attribute.end(); ++it)
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{
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if ((*it).first == "address")
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address = (*it).second;
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if ((*it).first == "netmask")
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netmask = (*it).second;
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if ((*it).first == "broadcast")
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broadcast = (*it).second;
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if ((*it).first == "gateway")
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gateway = (*it).second;
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}
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return true;
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}
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bool addLoopbackDevice(const std::string &name, const bool automatic_start)
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{
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std::map<std::string, std::string> attribute;
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return write_interface("/etc/network/interfaces", name, automatic_start, "inet", "loopback", attribute);
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}
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bool setStaticAttributes(const std::string &name, const bool automatic_start, const std::string &address, const std::string &netmask, const std::string &broadcast, const std::string &gateway, bool wireless)
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{
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std::map<std::string, std::string> attribute;
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attribute["address"] = address;
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attribute["netmask"] = netmask;
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if(wireless) {
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attribute["pre-up"] = "/etc/network/pre-" + name + ".sh";
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attribute["post-down"] = "/etc/network/post-" + name + ".sh";
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}
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if (!broadcast.empty())
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attribute["broadcast"] = broadcast;
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if (!gateway.empty())
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attribute["gateway"] = gateway;
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return write_interface("/etc/network/interfaces", name, automatic_start, "inet", "static", attribute);
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}
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bool setDhcpAttributes(const std::string &name, const bool automatic_start, bool wireless)
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{
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std::map<std::string, std::string> attribute;
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char hostname[100];
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if(gethostname(hostname, sizeof(hostname)) == 0)
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attribute["hostname"] = hostname;
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if(wireless) {
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attribute["pre-up"] = "/etc/network/pre-" + name + ".sh";
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attribute["post-down"] = "/etc/network/post-" + name + ".sh";
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}
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return write_interface("/etc/network/interfaces", name, automatic_start, "inet", "dhcp", attribute);
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}
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