def sys_write(self, fd, buf, count):
        """ write - send bytes through a file descriptor
          The write system call writes up to count bytes from the buffer pointed
          to by buf to the file descriptor fd. If count is zero, write returns 0
          and optionally sets *tx_bytes to zero.

          :param fd            a valid file descriptor
          :param buf           a memory buffer
          :param count         number of bytes to send
          :return: 0          Success
                    EBADF      fd is not a valid file descriptor or is not open.
                    EFAULT     buf or tx_bytes points to an invalid address.
        """
        data: bytes = bytes()
        cpu = self.current
        if count != 0:
            try:
                write_fd = self._get_fd(fd)
            except FdError as e:
                logger.error(f"WRITE: Not valid file descriptor ({fd}). Returning -{e.err}")
                return -e.err

            # TODO check count bytes from buf
            if buf not in cpu.memory or buf + count not in cpu.memory:
                logger.debug("WRITE: buf points to invalid address. Returning EFAULT")
                return -errno.EFAULT

            if fd > 2 and write_fd.is_full():
                cpu.PC -= cpu.instruction.size
                self.wait([], [fd], None)
                raise RestartSyscall()

            data: MixedSymbolicBuffer = cpu.read_bytes(buf, count)
            data: bytes = self._transform_write_data(data)
            write_fd.write(data)

            for line in data.split(b'\n'):
                line = line.decode('latin-1')  # latin-1 encoding will happily decode any byte (0x00-0xff)
                logger.debug(f"WRITE({fd}, 0x{buf:08x}, {count}) -> <{repr(line):48s}>")
            self.syscall_trace.append(("_write", fd, data))
            self.signal_transmit(fd)

        return len(data)
def sys_write(self, fd, buf, count):
        """ write - send bytes through a file descriptor
          The write system call writes up to count bytes from the buffer pointed
          to by buf to the file descriptor fd. If count is zero, write returns 0
          and optionally sets *tx_bytes to zero.

          :param fd            a valid file descriptor
          :param buf           a memory buffer
          :param count         number of bytes to send
          :return: 0          Success
                    EBADF      fd is not a valid file descriptor or is not open.
                    EFAULT     buf or tx_bytes points to an invalid address.
        """
        data: bytes = bytes()
        cpu = self.current
        if count != 0:
            try:
                write_fd = self._get_fd(fd)
            except FdError as e:
                logger.error(f"WRITE: Not valid file descriptor ({fd}). Returning -{e.err}")
                return -e.err

            # TODO check count bytes from buf
            if buf not in cpu.memory or buf + count not in cpu.memory:
                logger.debug("WRITE: buf points to invalid address. Returning EFAULT")
                return -errno.EFAULT

            if fd > 2 and write_fd.is_full():
                cpu.PC -= cpu.instruction.size
                self.wait([], [fd], None)
                raise RestartSyscall()

            data: MixedSymbolicBuffer = cpu.read_bytes(buf, count)
            data: bytes = self._transform_write_data(data)
            write_fd.write(data)

            for line in data.split(b'\n'):
                line = line.decode('latin-1')  # latin-1 encoding will happily decode any byte (0x00-0xff)
                logger.debug(f"WRITE({fd}, 0x{buf:08x}, {count}) -> <{repr(line):48s}>")
            self.syscall_trace.append(("_write", fd, data))
            self.signal_transmit(fd)

        return len(data)
def sys_write ( self , fd , buf , count ) : data : bytes = bytes ( ) cpu = self . current if count != 0 : try : write_fd = self . _get_fd ( fd ) except FdError as e : logger . error ( f"WRITE: Not valid file descriptor ({fd}). Returning -{e.err}" ) return - e . err # TODO check count bytes from buf if buf not in cpu . memory or buf + count not in cpu . memory : logger . debug ( "WRITE: buf points to invalid address. Returning EFAULT" ) return - errno . EFAULT if fd > 2 and write_fd . is_full ( ) : cpu . PC -= cpu . instruction . size self . wait ( [ ] , [ fd ] , None ) raise RestartSyscall ( ) data : MixedSymbolicBuffer = cpu . read_bytes ( buf , count ) data : bytes = self . _transform_write_data ( data ) write_fd . write ( data ) for line in data . split ( b'\n' ) : line = line . decode ( 'latin-1' ) # latin-1 encoding will happily decode any byte (0x00-0xff) logger . debug ( f"WRITE({fd}, 0x{buf:08x}, {count}) -> <{repr(line):48s}>" ) self . syscall_trace . append ( ( "_write" , fd , data ) ) self . signal_transmit ( fd ) return len ( data )
write - send bytes through a file descriptor
          The write system call writes up to count bytes from the buffer pointed
          to by buf to the file descriptor fd. If count is zero, write returns 0
          and optionally sets *tx_bytes to zero.

          :param fd            a valid file descriptor
          :param buf           a memory buffer
          :param count         number of bytes to send
          :return: 0          Success
                    EBADF      fd is not a valid file descriptor or is not open.
                    EFAULT     buf or tx_bytes points to an invalid address.
write - send bytes through a file descriptor The write system call writes up to count bytes from the buffer pointed to by buf to the file descriptor fd . If count is zero write returns 0 and optionally sets * tx_bytes to zero .