Jni dos.h error

Question

I am trying to use a touch sensor off of the parallel port I have tried the java comm api package and that isn't working well so I turned to jni. I Have written the code in C and what should happen is if the state of the sensor changes it will return an int to me. The errors that I am getting are in dos.h and I think the solution may be a wrapper class. I have not worked a lot with c or jni so I do not know how to write the c wrapper. please help as quickly as possible as this project needs to be handed in tomorrow. You can reply to the post or e-mail me at [email protected]
Here is the C code
#include <jni.h>
#include "DumbRobot.h"
#include <stdio.h>
#include <dos.h>
#define DATA 0x378
#define CONTROL DATA +1
#define STATUS CONTROL +1
JNIEXPORT jint JNICALL
Java_DumbRobot_sensor(JNIEnv *env, jobject obj){
int ival=0,ival2=0,state=0;
char charval,charval2;
int x=0;
clrscr();
outportb(DATA,0);
while(1){
outp(DATA,9);
charval = ((inp(CONTROL) ^0x80) >> 3);
ival = (int) charval;
if(ival== 27){
printf("HIT(front)\n");
state=2;
outportb(DATA,2);
charval2=((inp(CONTROL) ^0x80) >> 3);
ival2= (int) charval2;
if(ival2== 29) {
printf("HIT(back)\n");
state=1;
if(ival2==25 && ival==25){
state=0;
printf(" NOTHING\n ");
return state;
Here is the cl line
cl -Ic:\jdk1.3\include -Ic:\jdk1.3\include\win32 -Ic:\tc\include -LD TouchSensor.c -Fesensor.dll
Here is the java code
public native int sensor();
static { System.loadLibrary("sensor");
System.out.println(sensor());
and the errors that I am getting are
TouchSensor.c
c:\TC\INCLUDE\STDIO.H(101) : warning C4229: anachronism used : modifiers on data are ignored
c:\TC\INCLUDE\STDIO.H(171) : warning C4068: unknown pragma
c:\TC\INCLUDE\STDIO.H(173) : warning C4068: unknown pragma
c:\TC\INCLUDE\DOS.H(19) : warning C4229: anachronism used : modifiers on data are ignored
c:\TC\INCLUDE\DOS.H(20) : warning C4229: anachronism used : modifiers on data are ignored
c:\TC\INCLUDE\DOS.H(21) : warning C4229: anachronism used : modifiers on data are ignored
c:\TC\INCLUDE\DOS.H(22) : warning C4229: anachronism used : modifiers on data are ignored
c:\TC\INCLUDE\DOS.H(23) : warning C4229: anachronism used : modifiers on data are ignored
c:\TC\INCLUDE\DOS.H(24) : warning C4229: anachronism used : modifiers on data are ignored
c:\TC\INCLUDE\DOS.H(25) : warning C4229: anachronism used : modifiers on data are ignored
c:\TC\INCLUDE\DOS.H(26) : warning C4229: anachronism used : modifiers on data are ignored
c:\TC\INCLUDE\DOS.H(27) : warning C4229: anachronism used : modifiers on data are ignored
c:\TC\INCLUDE\DOS.H(28) : warning C4229: anachronism used : modifiers on data are ignored
c:\TC\INCLUDE\DOS.H(29) : warning C4229: anachronism used : modifiers on data are ignored
c:\TC\INCLUDE\DOS.H(164) : error C2143: syntax error : missing ')' before '*'
c:\TC\INCLUDE\DOS.H(164) : error C2143: syntax error : missing ')' before '*'
c:\TC\INCLUDE\DOS.H(164) : error C2143: syntax error : missing '{' before '*'
c:\TC\INCLUDE\DOS.H(164) : error C2059: syntax error : ')'
c:\TC\INCLUDE\DOS.H(164) : error C2059: syntax error : ')'
c:\TC\INCLUDE\DOS.H(180) : error C2143: syntax error : missing ')' before '*'
c:\TC\INCLUDE\DOS.H(180) : error C2143: syntax error : missing '{' before '*'
c:\TC\INCLUDE\DOS.H(180) : error C2059: syntax error : ')'
c:\TC\INCLUDE\DOS.H(180) : error C2091: function returns function
c:\TC\INCLUDE\DOS.H(182) : error C2143: syntax error : missing ')' before '*'
c:\TC\INCLUDE\DOS.H(182) : error C2143: syntax error : missing ')' before '*'
c:\TC\INCLUDE\DOS.H(182) : error C2143: syntax error : missing '{' before '*'
c:\TC\INCLUDE\DOS.H(182) : error C2059: syntax error : ')'
c:\TC\INCLUDE\DOS.H(182) : error C2059: syntax error : ')'
c:\TC\INCLUDE\DOS.H(211) : error C2143: syntax error : missing ')' before '*'
c:\TC\INCLUDE\DOS.H(211) : error C2143: syntax error : missing ')' before '*'
c:\TC\INCLUDE\DOS.H(211) : error C2143: syntax error : missing '{' before '*'
c:\TC\INCLUDE\DOS.H(211) : error C2059: syntax error : ')'
c:\TC\INCLUDE\DOS.H(211) : error C2059: syntax error : ')'
c:\TC\INCLUDE\DOS.H(239) : error C4226: nonstandard extension used : 'far' is an obsolete keyword
c:\TC\INCLUDE\DOS.H(240) : error C4226: nonstandard extension used : 'far' is an obsolete keyword

Answer 1

What kind of compiler you use?
cl I think is from MS Visual C++ but the headers I suppose are from Borland's TurboC for DOS distribution.
This is the first error condition.
The second one is that java doesn't run on dos so including dos.h is mistake. You should include first win.h and then jni.h
And you should really set include path to the right one. Don't use headers from one compiler with another.