--- /dev/null
+/*
+ * Copyright © 2013 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authored by: Thomas Voß <thomas.voss@canonical.com>
+ */
+
+#include <core/posix/exec.h>
+#include <core/posix/fork.h>
+#include <core/posix/standard_stream.h>
+
+#include <iostream>
+
+#include <cstring>
+
+#include <unistd.h>
+
+namespace core
+{
+namespace posix
+{
+ChildProcess exec(const std::string& fn,
+ const std::vector<std::string>& argv,
+ const std::map<std::string, std::string>& env,
+ const StandardStream& flags)
+{
+ std::function<void()> null_function = [](){};
+ return exec(fn, argv, env, flags, null_function);
+}
+
+ChildProcess exec(const std::string& fn,
+ const std::vector<std::string>& argv,
+ const std::map<std::string, std::string>& env,
+ const StandardStream& flags,
+ const std::function<void()>& child_setup)
+{
+ return posix::fork([fn, argv, env, child_setup]()
+ {
+ char** it; char** pargv; char** penv;
+ it = pargv = new char*[argv.size()+2];
+ *it = ::strdup(fn.c_str());
+ it++;
+ for (auto element : argv)
+ {
+ *it = ::strdup(element.c_str());
+ it++;
+ }
+ *it = nullptr;
+
+ it = penv = new char*[env.size()+1];
+ for (auto pair : env)
+ {
+ *it = ::strdup((pair.first + "=" + pair.second).c_str());
+ it++;
+ }
+ *it = nullptr;
+
+ child_setup();
+ return static_cast<posix::exit::Status>(execve(fn.c_str(), pargv, penv));
+ }, flags);
+}
+
+}
+}