void PrintChars(const char* str)
{
if (*str != NULL)
{
printf("%c", *str);
PrintChars(str + 1);
}else
return;
}
int main(int argc, char* argv[])
{
char * string = "Hello Kookmin Univ.";
printf("The Length of \"%s\" = %d\n", string, Length(string));
PrintChars(string);
printf("\n");
ReversePrintChars(string);
printf("\n");
return 0;
}
int main (int argc, const char * argv[]) {
PrintChars( 32, 47 );
PrintChars( 48, 57 );
PrintChars( 58, 64 );
PrintChars( 65, 90 );
PrintChars( 91, 96 );
PrintChars( 97, 122 );
PrintChars( 123, 126 );
return 0;
}
int main(int argc, char* argv[])
{
int test_font = 0; // set to 1 to print on text console
if (argc!=2)
{
Help(argv[0]);
}
if (test_font)
{
InitBuffer(80, 30);
}
else
{
InitFrameBuffer(320, 200);
}
PrintChars(argv[1], test_font);
if (test_font)
{
PrintBuffer();
}
return 0;
}
VOID
FileEvtIoDeviceControl(
IN WDFQUEUE Queue,
IN WDFREQUEST Request,
IN size_t OutputBufferLength,
IN size_t InputBufferLength,
IN ULONG IoControlCode
)
/*++
Routine Description:
This event is called when the framework receives IRP_MJ_DEVICE_CONTROL
requests from the system.
Arguments:
Queue - Handle to the framework queue object that is associated
with the I/O request.
Request - Handle to a framework request object.
OutputBufferLength - length of the request's output buffer,
if an output buffer is available.
InputBufferLength - length of the request's input buffer,
if an input buffer is available.
IoControlCode - the driver-defined or system-defined I/O control code
(IOCTL) that is associated with the request.
Return Value:
VOID
--*/
{
NTSTATUS status = STATUS_SUCCESS;// Assume success
PCHAR inBuf = NULL, outBuf = NULL; // pointer to Input and output buffer
PCHAR data = "this String is from Device Driver !!!";
ULONG datalen = (ULONG) strlen(data)+1;//Length of data including null
PCHAR buffer = NULL;
PREQUEST_CONTEXT reqContext = NULL;
size_t bufSize;
UNREFERENCED_PARAMETER( Queue );
PAGED_CODE();
if(!OutputBufferLength || !InputBufferLength)
{
WdfRequestComplete(Request, STATUS_INVALID_PARAMETER);
return;
}
//
// Determine which I/O control code was specified.
//
switch (IoControlCode)
{
case IOCTL_NONPNP_METHOD_BUFFERED:
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Called IOCTL_NONPNP_METHOD_BUFFERED\n");
//
// For bufffered ioctls WdfRequestRetrieveInputBuffer &
// WdfRequestRetrieveOutputBuffer return the same buffer
// pointer (Irp->AssociatedIrp.SystemBuffer), so read the
// content of the buffer before writing to it.
//
status = WdfRequestRetrieveInputBuffer(Request, 0, &inBuf, &bufSize);
if(!NT_SUCCESS(status)) {
status = STATUS_INSUFFICIENT_RESOURCES;
break;
}
ASSERT(bufSize == InputBufferLength);
//
// Read the input buffer content.
// We are using the following function to print characters instead
// TraceEvents with %s format because the string we get may or
// may not be null terminated. The buffer may contain non-printable
// characters also.
//
Hexdump((TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Data from User : %!HEXDUMP!\n",
log_xstr(inBuf, (USHORT)InputBufferLength)));
PrintChars(inBuf, InputBufferLength );
status = WdfRequestRetrieveOutputBuffer(Request, 0, &outBuf, &bufSize);
if(!NT_SUCCESS(status)) {
status = STATUS_INSUFFICIENT_RESOURCES;
break;
}
ASSERT(bufSize == OutputBufferLength);
//
// Writing to the buffer over-writes the input buffer content
//
RtlCopyMemory(outBuf, data, OutputBufferLength);
Hexdump((TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Data to User : %!HEXDUMP!\n",
log_xstr(outBuf, (USHORT)datalen)));
PrintChars(outBuf, datalen );
//
// Assign the length of the data copied to IoStatus.Information
// of the request and complete the request.
//
WdfRequestSetInformation(Request,
OutputBufferLength < datalen? OutputBufferLength:datalen);
//
// When the request is completed the content of the SystemBuffer
// is copied to the User output buffer and the SystemBuffer is
// is freed.
//
break;
case IOCTL_NONPNP_METHOD_IN_DIRECT:
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Called IOCTL_NONPNP_METHOD_IN_DIRECT\n");
//
// Get the Input buffer. WdfRequestRetrieveInputBuffer returns
// Irp->AssociatedIrp.SystemBuffer.
//
status = WdfRequestRetrieveInputBuffer(Request, 0, &inBuf, &bufSize);
if(!NT_SUCCESS(status)) {
status = STATUS_INSUFFICIENT_RESOURCES;
break;
}
ASSERT(bufSize == InputBufferLength);
Hexdump((TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Data from User : %!HEXDUMP!\n",
log_xstr(inBuf, (USHORT)InputBufferLength)));
PrintChars(inBuf, InputBufferLength);
//
// Get the output buffer. Framework calls MmGetSystemAddressForMdlSafe
// on the Irp->MdlAddress and returns the system address.
// Oddity: For this method, this buffer is intended for transfering data
// from the application to the driver.
//
status = WdfRequestRetrieveOutputBuffer(Request, 0, &buffer, &bufSize);
if(!NT_SUCCESS(status)) {
break;
}
ASSERT(bufSize == OutputBufferLength);
Hexdump((TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Data from User in OutputBuffer: %!HEXDUMP!\n",
log_xstr(buffer, (USHORT)OutputBufferLength)));
PrintChars(buffer, OutputBufferLength);
//
// Return total bytes read from the output buffer.
// Note OutputBufferLength = MmGetMdlByteCount(Irp->MdlAddress)
//
WdfRequestSetInformation(Request, OutputBufferLength);
//
// NOTE: Changes made to the SystemBuffer are not copied
// to the user input buffer by the I/O manager
//
break;
case IOCTL_NONPNP_METHOD_OUT_DIRECT:
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Called IOCTL_NONPNP_METHOD_OUT_DIRECT\n");
//
// Get the Input buffer. WdfRequestRetrieveInputBuffer returns
// Irp->AssociatedIrp.SystemBuffer.
//
status = WdfRequestRetrieveInputBuffer(Request, 0, &inBuf, &bufSize);
if(!NT_SUCCESS(status)) {
status = STATUS_INSUFFICIENT_RESOURCES;
break;
}
ASSERT(bufSize == InputBufferLength);
Hexdump((TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Data from User : %!HEXDUMP!\n",
log_xstr(inBuf, (USHORT)InputBufferLength)));
PrintChars(inBuf, InputBufferLength);
//
// Get the output buffer. Framework calls MmGetSystemAddressForMdlSafe
// on the Irp->MdlAddress and returns the system address.
// For this method, this buffer is intended for transfering data from the
// driver to the application.
//
status = WdfRequestRetrieveOutputBuffer(Request, 0, &buffer, &bufSize);
if(!NT_SUCCESS(status)) {
break;
}
ASSERT(bufSize == OutputBufferLength);
//
// Write data to be sent to the user in this buffer
//
RtlCopyMemory(buffer, data, OutputBufferLength);
Hexdump((TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Data to User : %!HEXDUMP!\n",
log_xstr(buffer, (USHORT)datalen)));
PrintChars(buffer, datalen);
WdfRequestSetInformation(Request,
OutputBufferLength < datalen? OutputBufferLength: datalen);
//
// NOTE: Changes made to the SystemBuffer are not copied
// to the user input buffer by the I/O manager
//
break;
case IOCTL_NONPNP_METHOD_NEITHER:
{
size_t inBufLength, outBufLength;
//
// The NonPnpEvtDeviceIoInCallerContext has already probe and locked the
// pages and mapped the user buffer into system address space and
// stored memory buffer pointers in the request context. We can get the
// buffer pointer by calling WdfMemoryGetBuffer.
//
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Called IOCTL_NONPNP_METHOD_NEITHER\n");
reqContext = GetRequestContext(Request);
inBuf = WdfMemoryGetBuffer(reqContext->InputMemoryBuffer, &inBufLength);
outBuf = WdfMemoryGetBuffer(reqContext->OutputMemoryBuffer, &outBufLength);
if(inBuf == NULL || outBuf == NULL) {
status = STATUS_INVALID_PARAMETER;
}
ASSERT(inBufLength == InputBufferLength);
ASSERT(outBufLength == OutputBufferLength);
//
// Now you can safely read the data from the buffer in any arbitrary
// context.
//
Hexdump((TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Data from User : %!HEXDUMP!\n",
log_xstr(inBuf, (USHORT)inBufLength)));
PrintChars(inBuf, inBufLength);
//
// Write to the buffer in any arbitrary context.
//
RtlCopyMemory(outBuf, data, outBufLength);
Hexdump((TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Data to User : %!HEXDUMP!\n",
log_xstr(outBuf, (USHORT)datalen)));
PrintChars(outBuf, datalen);
//
// Assign the length of the data copied to IoStatus.Information
// of the Irp and complete the Irp.
//
WdfRequestSetInformation(Request,
outBufLength < datalen? outBufLength:datalen);
break;
}
default:
//
// The specified I/O control code is unrecognized by this driver.
//
status = STATUS_INVALID_DEVICE_REQUEST;
TraceEvents(TRACE_LEVEL_ERROR, DBG_IOCTL, "ERROR: unrecognized IOCTL %x\n", IoControlCode);
break;
}
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Completing Request %p with status %X",
Request, status );
WdfRequestComplete( Request, status);
}
void GTerm::pc_arg( void )
{
int i, yp, yp2;
//printf("pc_arg: pc_curcmd = %d...\n", pc_curcmd);
pc_args[pc_argcount++ ] = * input_data;
if (pc_argcount == pc_numargs)
{
switch (pc_curcmd)
{
case GTERM_PC_CMD_CURONOFF:
//printf("pc_arg: curonoff got %d\n", *input_data);
if (* input_data)
clear_mode_flag(CURSORINVISIBLE);
else
set_mode_flag(CURSORINVISIBLE);
current_state = pc_cmd_state;
changed_line(cursor_y, cursor_x, cursor_x);
break;
case GTERM_PC_CMD_MOVECURSOR:
//printf("pc_arg: movecursor (%d, %d)\n", pc_args[0], pc_args[1]);
move_cursor(pc_args[0], pc_args[1]);
current_state = pc_cmd_state;
break;
case GTERM_PC_CMD_PUTTEXT:
//printf("pc_arg: puttext got %d, %d, %d, %d\n", pc_args[0], pc_args[1], pc_args[2], pc_args[3]);
pc_numdata = pc_args[2] * pc_args[3] * 2;
pc_datacount = 0;
pc_curx = pc_args[0];
pc_cury = pc_args[1];
if (pc_numdata)
current_state = pc_data_state;
else
current_state = pc_cmd_state;
break;
case GTERM_PC_CMD_WRITE:
//printf("pc_arg: write got %d, %d, %d, %d\n", pc_args[0], pc_args[1], pc_args[2], pc_args[3]);
pc_numdata = pc_args[2];
pc_datacount = 0;
pc_curx = pc_args[0];
pc_cury = pc_args[1];
if (pc_numdata)
current_state = pc_data_state;
else
current_state = pc_cmd_state;
break;
case GTERM_PC_CMD_MOVETEXT: // <sx> <sy> <wid> <len> <dx> <dy>
if (pc_args[1]<pc_args[5])
{
for (i = 0; i<pc_args[3]; i++)
{
int idx1 = pc_args[1] + i;
yp = linenumbers[idx1] * MAXWIDTH;
int idx2 = pc_args[5] + i;
yp2 = linenumbers[idx2] * MAXWIDTH;
memmove(& text[yp2 + pc_args[4]], & text[yp + pc_args[0]], pc_args[2]);
string substring = tm[idx1].substr(pc_args[0], pc_args[2]);
tm[idx2].replace(pc_args[4], pc_args[2], substring);
memmove(& color[yp2 + pc_args[4]], & color[yp + pc_args[0]], pc_args[2]);
// TODO Doesn't seem to get here in normal use, but probably ought to
// eventually figure out what's going on so I can manipulate the text manager here
changed_line(pc_args[5] + i, pc_args[4], pc_args[4] + pc_args[2] - 1);
}
}
else
{
for (i = pc_args[3] - 1; i>=0; i--)
{
int idx1 = pc_args[1] + i;
yp = linenumbers[idx1] * MAXWIDTH;
int idx2 = pc_args[5] + i;
yp2 = linenumbers[idx2] * MAXWIDTH;
memmove(& text[yp2 + pc_args[4]], & text[yp + pc_args[0]], pc_args[2]);
string substring = tm[idx1].substr(pc_args[0], pc_args[2]);
tm[idx2].replace(pc_args[4], pc_args[2], substring);
memmove(& color[yp2 + pc_args[4]], & color[yp + pc_args[0]], pc_args[2]);
// TODO ditto as with previous
changed_line(pc_args[5] + i, pc_args[4], pc_args[4] + pc_args[2] - 1);
}
}
current_state = pc_cmd_state;
break;
case GTERM_PC_CMD_SELECTPRINTER:
pc_numdata = pc_args[0];
pc_datacount = 0;
memset(pc_printername, 0, sizeof(pc_printername));
if (pc_numdata)
current_state = pc_data_state;
else
{
SelectPrinter("");
current_state = pc_cmd_state;
}
break;
case GTERM_PC_CMD_PRINTCHAR:
PrintChars(1, & pc_args[0]);
current_state = pc_cmd_state;
break;
case GTERM_PC_CMD_PRINTCHARS:
pc_numdata = (pc_args[0] << 8) + pc_args[1];
pc_datacount = 0;
if (pc_numdata)
current_state = pc_data_state;
else
current_state = pc_cmd_state;
break;
}
}
}
void GTerm::pc_data( void )
{
int yp;
int altY;
//printf("pc_data: pc_curcmd = %d, pc_datacount = %d, pc_numdata = %d, pc_curx = %d, pc_cur_y = %d...\n", pc_curcmd, pc_datacount, pc_numdata, pc_curx, pc_cury);
switch (pc_curcmd)
{
case GTERM_PC_CMD_PUTTEXT:
yp = linenumbers[pc_cury] * MAXWIDTH;
altY = m_nextLineCounter * MAXWIDTH;
if (!(pc_datacount & 1))
{
//printf("pc_data: got char %d\n", *input_data);
//text[yp + pc_curx] = * input_data;
tm[pc_cury][pc_curx] = *input_data;
}
else
{
//printf("pc_data: got attr %d\n", *input_data);
//color[yp + pc_curx] = * input_data << 4;
tm.SetColorAdjusted(pc_cury, pc_curx, (*input_data << 4));
}
if (pc_datacount & 1)
{
changed_line(pc_cury, pc_args[0], pc_curx);
pc_curx++;
if (pc_curx == pc_args[0] + pc_args[2])
{
pc_curx = pc_args[0];
pc_cury++;
}
}
break;
case GTERM_PC_CMD_WRITE:
yp = linenumbers[pc_cury] * MAXWIDTH;
altY = m_nextLineCounter * MAXWIDTH;
//text[yp + pc_curx] = * input_data;
tm[pc_cury][pc_curx] = *input_data;
//color[yp + pc_curx] = (unsigned short)pc_args[3] << 4;
tm.SetColorAdjusted(pc_cury, pc_curx, ((unsigned short)pc_args[3] << 4) );
changed_line(pc_cury, pc_args[0], pc_curx);
pc_curx++;
break;
case GTERM_PC_CMD_SELECTPRINTER:
if (pc_datacount<GTERM_PC_MAXPRINTERNAME - 1)
pc_printername[pc_datacount] = * input_data;
if (pc_datacount == pc_numdata - 1)
SelectPrinter(pc_printername);
break;
case GTERM_PC_CMD_PRINTCHARS:
PrintChars(1, input_data);
break;
}
pc_datacount++;
if (pc_datacount == pc_numdata)
current_state = pc_cmd_state;
}