214 lines
6.4 KiB
C
214 lines
6.4 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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void main(int argc,char *argv[]) {
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HANDLE hFile;
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char *MyPort = "COM1";
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DWORD ValueFromEscape = 0;
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DWORD Func;
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int scanfval;
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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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printf("We successfully opened the %s port.\n",MyPort);
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do {
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printf("^z=END 1=GETTIMEOUTS 2=SETTIMEOUTS:");
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if ((scanfval = scanf("%d",&Func)) == EOF) {
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printf("All done\n");
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break;
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} else if (scanfval != 1) {
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printf("Invalid input\n");
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} else {
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if ((Func >= 1) && (Func <= 2)) {
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switch (Func) {
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case 1: {
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COMMTIMEOUTS OldTimeouts;
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if (!GetCommTimeouts(
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hFile,
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&OldTimeouts
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)) {
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printf("Error getting timeouts: %d\n",GetLastError());
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} else {
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printf("ReadIntervalTimeout: %d\n",OldTimeouts.ReadIntervalTimeout);
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printf("ReadTotalTimeoutMultiplier: %d\n",OldTimeouts.ReadTotalTimeoutMultiplier);
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printf("ReadTotalTimeoutConstant: %d\n",OldTimeouts.ReadTotalTimeoutConstant);
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printf("WriteTotalTimeoutMultipler: %d\n",OldTimeouts.WriteTotalTimeoutMultiplier);
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printf("WriteTotalTimeoutConstant: %d\n",OldTimeouts.WriteTotalTimeoutConstant);
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}
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break;
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}
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case 2: {
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COMMTIMEOUTS NewTimeout;
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printf("ReadIntervalTimeout[CR Implies use old value]: ");
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if ((scanfval = scanf("%d",&NewTimeout.ReadIntervalTimeout)) == EOF) {
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printf("All done\n");
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exit(1);
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} else if (!scanfval) {
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NewTimeout.ReadIntervalTimeout = ~0;
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} else if (scanfval != 1) {
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printf("Bad input\n");
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break;
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}
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printf("ReadTotalTimeoutMultiplier[CR Implies use old value]: ");
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if ((scanfval = scanf("%d",&NewTimeout.ReadTotalTimeoutMultiplier)) == EOF) {
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printf("All done\n");
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exit(1);
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} else if (!scanfval) {
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NewTimeout.ReadTotalTimeoutMultiplier = ~0;
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} else if (scanfval != 1) {
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printf("Bad input\n");
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break;
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}
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printf("ReadTotalTimeoutConstant[CR Implies use old value]: ");
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if ((scanfval = scanf("%d",&NewTimeout.ReadTotalTimeoutConstant)) == EOF) {
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printf("All done\n");
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exit(1);
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} else if (!scanfval) {
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NewTimeout.ReadTotalTimeoutConstant = ~0;
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} else if (scanfval != 1) {
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printf("Bad input\n");
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break;
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}
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printf("WriteTotalTimeoutMultipler[CR Implies use old value]: ");
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if ((scanfval = scanf("%d",&NewTimeout.WriteTotalTimeoutMultiplier)) == EOF) {
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printf("All done\n");
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exit(1);
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} else if (!scanfval) {
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NewTimeout.WriteTotalTimeoutMultiplier = ~0;
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} else if (scanfval != 1) {
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printf("Bad input\n");
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break;
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}
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printf("WriteTotalTimeoutConstant[CR Implies use old value]: ");
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if ((scanfval = scanf("%d",&NewTimeout.WriteTotalTimeoutConstant)) == EOF) {
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printf("All done\n");
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exit(1);
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} else if (!scanfval) {
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NewTimeout.WriteTotalTimeoutConstant = ~0;
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} else if (scanfval != 1) {
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printf("Bad input\n");
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break;
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}
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printf("ReadIntervalTimeout: %d\n",NewTimeout.ReadIntervalTimeout);
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printf("ReadTotalTimeoutMultiplier: %d\n",NewTimeout.ReadTotalTimeoutMultiplier);
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printf("ReadTotalTimeoutConstant: %d\n",NewTimeout.ReadTotalTimeoutConstant);
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printf("WriteTotalTimeoutMultipler: %d\n",NewTimeout.WriteTotalTimeoutMultiplier);
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printf("WriteTotalTimeoutConstant: %d\n",NewTimeout.WriteTotalTimeoutConstant);
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if (!SetCommTimeouts(
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hFile,
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&NewTimeout
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)) {
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printf("Error setting timeouts: %d\n",GetLastError());
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}
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break;
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}
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}
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} else {
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printf("Invalid Input\n");
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}
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}
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} while (TRUE);
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CloseHandle(hFile);
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} else {
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DWORD LastError;
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LastError = GetLastError();
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printf("Couldn't open the %s device.\n",MyPort);
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printf("Status of failed open is: %x\n",LastError);
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}
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}
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