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https://github.com/rakshasa/rtorrent.git
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rakshasa
535db16850
git-svn-id: svn://rakshasa.no/libtorrent/trunk/rtorrent@938 e378c898-3ddf-0310-93e7-cc216c733640
120 lines
3.5 KiB
C++
120 lines
3.5 KiB
C++
// rTorrent - BitTorrent client
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// Copyright (C) 2005-2007, Jari Sundell
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// In addition, as a special exception, the copyright holders give
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// permission to link the code of portions of this program with the
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// OpenSSL library under certain conditions as described in each
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// individual source file, and distribute linked combinations
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// including the two.
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//
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// You must obey the GNU General Public License in all respects for
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// all of the code used other than OpenSSL. If you modify file(s)
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// with this exception, you may extend this exception to your version
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// of the file(s), but you are not obligated to do so. If you do not
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// wish to do so, delete this exception statement from your version.
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// If you delete this exception statement from all source files in the
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// program, then also delete it here.
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//
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// Contact: Jari Sundell <jaris@ifi.uio.no>
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//
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// Skomakerveien 33
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// 3185 Skoppum, NORWAY
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#include "config.h"
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include "exec_file.h"
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namespace rpc {
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int
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ExecFile::execute(const char* file, char* const* argv) {
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pid_t childPid = fork();
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if (childPid == -1)
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throw torrent::input_error("ExecFile::execute(...) Fork failed.");
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if (childPid == 0) {
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// Close all fd's.
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for (int i = 0, last = sysconf(_SC_OPEN_MAX); i != last; i++)
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::close(i);
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int result = execvp(file, argv);
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_exit(result);
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} else {
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int status;
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if (waitpid(childPid, &status, 0) != childPid)
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throw torrent::internal_error("ExecFile::execute(...) waitpid failed.");
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// Check return value?
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return status;
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}
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}
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torrent::Object
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ExecFile::execute_object(const torrent::Object& rawArgs) {
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char* argsBuffer[128];
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char** argsCurrent = argsBuffer;
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// Size of strings are less than 24.
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char valueBuffer[3072];
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char* valueCurrent = valueBuffer;
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const torrent::Object::list_type& args = rawArgs.as_list();
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if (args.empty())
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throw torrent::input_error("Too few arguments.");
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for (torrent::Object::list_type::const_iterator itr = args.begin(), last = args.end(); itr != last; itr++, argsCurrent++) {
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if (argsCurrent == argsBuffer + 128 - 1)
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throw torrent::input_error("Too many arguments.");
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switch (itr->type()) {
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case torrent::Object::TYPE_STRING:
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*argsCurrent = const_cast<char*>(itr->as_string().c_str());
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break;
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case torrent::Object::TYPE_VALUE:
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*argsCurrent = valueCurrent;
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valueCurrent += std::max(snprintf(valueCurrent, valueBuffer + 3072 - valueCurrent, "%lli", itr->as_value()), 0);
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break;
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default:
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throw torrent::input_error("Invalid type.");
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}
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}
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*argsCurrent = NULL;
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int status = execute(argsBuffer[0], argsBuffer);
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if (status != 0)
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throw torrent::input_error("ExecFile::execute_object(...) status != 0.");
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return torrent::Object();
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}
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}
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