text: /****************************************************************************
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  ****************************************************************************/
  #include "stdafx.h"
  #include "qtunixsocket.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
  
  QtUnixSocket::QtUnixSocket(QObject *parent)
      : QTcpSocket(parent)
  {
  }
  
  bool QtUnixSocket::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;
  }
  