/* dtkDistributedUnixSocket.cpp ---
 *
 * Author: Julien Wintz
 * Copyright (C) 2008 - Julien Wintz, Inria.
 * Created: Thu May 26 11:07:40 2011 (+0200)
 * Version: $Id: dc1d42a4ce1e9c91300268dcdba43eac2b603d0b $
 * Last-Updated: Thu May 26 11:08:12 2011 (+0200)
 *           By: Julien Wintz
 *     Update #: 4
 */

/* Commentary:
 *
 */

/* Change log:
 *
 */

#include "dtkDistributedUnixSocket.h"

#include <sys/types.h>
#include <sys/un.h>
#include <sys/socket.h>
#include <string.h>
#include <unistd.h>

#ifndef SUN_LEN
#define SUN_LEN(ptr) ((size_t)(((struct sockaddr_un *) 0)->sun_path) \
                      +strlen ((ptr)->sun_path))
#endif

dtkDistributedUnixSocket::dtkDistributedUnixSocket(QObject *parent) : QTcpSocket(parent)
{

}

bool dtkDistributedUnixSocket::connectTo(const QString& path)
{
    bool ret = false;
    int sock = ::socket(PF_UNIX, SOCK_STREAM, 0);

    if (sock != -1) {
        struct sockaddr_un addr;
        ::memset(&addr, 0, sizeof(struct sockaddr_un));
        addr.sun_family = AF_UNIX;
        size_t pathlen = strlen(path.toLatin1().constData());
        pathlen = qMin(pathlen, sizeof(addr.sun_path));
        ::memcpy(addr.sun_path, path.toLatin1().constData(), pathlen);
        int err = ::connect(sock, (struct sockaddr *)&addr, SUN_LEN(&addr));

        if (err != -1) {
            setSocketDescriptor(sock);
            ret = true;
        } else {
            ::close(sock);
        }
    }

    return ret;
}

// /////////////////////////////////////////////////////////////////
// Credits
// /////////////////////////////////////////////////////////////////

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