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