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#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "windows.h"
#define FAILURE printf("FAIL: %d\n",__LINE__);exit(1)
int __cdecl main(int argc,char *argv[]) {
HANDLE hFile; char *myPort = "COM1"; COMMCONFIG myConf,spareConf; DWORD sizeOfConf; DCB myDcb,spareDcb;
if (argc > 1) {
myPort = argv[1];
}
if ((hFile = CreateFile( myPort, GENERIC_READ | GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL )) == ((HANDLE)-1)) {
FAILURE; }
if (!GetCommConfig( hFile, NULL, &sizeOfConf )) {
FAILURE;
}
if (!sizeOfConf) {
FAILURE;
}
if (sizeOfConf != sizeof(COMMCONFIG)) {
FAILURE;
}
if (!GetCommState( hFile, &myDcb )) {
FAILURE;
}
RtlZeroMemory( &myConf, sizeOfConf );
myConf.dwSize = sizeOfConf;
if (!GetCommConfig( hFile, &myConf, &sizeOfConf )) {
FAILURE;
}
if (memcmp(&myConf.dcb,&myDcb,sizeof(DCB))) {
FAILURE;
}
if (myConf.dwSize != sizeof(COMMCONFIG)) {
FAILURE;
}
if (myConf.wVersion != 0) {
FAILURE;
}
if (myConf.pProviderSubType != 0) {
FAILURE;
}
if (myConf.dwProviderOffset != 0) {
FAILURE;
}
if (myConf.dwProviderSize != 0) {
FAILURE;
}
if (myConf.wcProviderData[1]) {
FAILURE;
}
//
// Make sure the commconfig has not changed after a call to set
// and that the comm state is also the same.
//
spareConf = myConf; spareDcb = myDcb;
if (!SetCommConfig( hFile, (PVOID)&myConf, sizeOfConf )) {
FAILURE;
}
if (memcmp(&spareConf,&myConf,sizeof(COMMCONFIG))) {
FAILURE;
}
if (!GetCommState( hFile, &myDcb )) {
FAILURE;
}
if (memcmp(&spareDcb,&myDcb,sizeof(DCB))) {
FAILURE;
}
return 1;
}
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