added pport module

git-svn-id: http://apu.dw.local/svnusers/JoshHoltrop/pppc/trunk@35 8131a0b2-b21c-1c47-bd6a-f003126495bd

Makefile

@@ -1,15 +1,18 @@
 
 TARGET   := pppc.exe
-OBJS     := pppc.o session_notification.o resources.o
+OBJS     := pppc.o session_notification.o resources.o pport.o
 CXXFLAGS := -O2 -Wall
 
 all: $(TARGET)
 
 $(TARGET): $(OBJS)
-	$(CXX) -o $@ $^ $(LDFLAGS)
+	$(CXX) -o $@ $(LDFLAGS) $^
 
 %.o: %.rc
 	windres $< $@
 
 %.o: %.cc
-	$(CXX) -c -o $@ $< $(CPPFLAGS) $(CXXFLAGS)
+	$(CXX) -c -o $@ $(CPPFLAGS) $(CXXFLAGS) $<
+
+clean:
+	-$(RM) -f *.o *~ *.exe

pport.cc

@@ -0,0 +1,29 @@
+
+#include <windows.h>
+#include <iostream>
+#include "pport.h"
+using namespace std;
+
+static HANDLE ppfd = NULL;
+
+void pport_write(unsigned char val)
+{
+    if (ppfd == NULL)
+    {
+        ppfd = CreateFile("LPT1",
+                          GENERIC_WRITE,
+                          0,
+                          NULL,
+                          OPEN_EXISTING,
+                          FILE_ATTRIBUTE_NORMAL,
+                          NULL);
+        if (ppfd == NULL)
+        {
+            cerr << "Couldn't open LPT1!" << endl;
+            exit(4);
+        }
+    }
+
+    DWORD bytes_written = 0;
+    WriteFile(ppfd, &val, 1, &bytes_written, NULL);
+}

pport.h

@@ -0,0 +1,7 @@
+
+#ifndef PPORT_H
+#define PPORT_H
+
+void pport_write(unsigned char val);
+
+#endif

pppc.cc

@@ -1,6 +1,8 @@
 
 #include <windows.h>
 #include <iostream>
+#include "session_notification.h"
+#include "pport.h"
 using namespace std;
 
 int WinMain(