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/*
** QUERY.C - Timed query with default for batch files
**
** public domain by Bob Stout
*/
#include <stdio.h>
#include <time.h>
#include <ctype.h>
#include <stdlib.h>
#include <conio.h>
main(int argc, char *argv[])
{
int ch = '\0', def_ch = '\0';
char *prompt = "(y/n) ";
clock_t start, limit = (clock_t)0;
if (1 < argc)
{
def_ch = toupper(*argv[1]);
if ('Y' == def_ch)
prompt[1] = (char)def_ch;
else if ('N' == def_ch)
prompt[3] = (char)def_ch;
else def_ch = '\0';
}
fputs(prompt, stderr);
if (2 < argc)
{
start = clock();
limit = (clock_t)(CLK_TCK * atoi(argv[2]));
}
while ('Y' != ch && 'N' != ch)
{
while (!kbhit())
{
if (limit && (limit <= (clock() - start)))
{
ch = def_ch;
goto BYE;
}
}
ch = toupper(getch());
if ('Y' != ch && 'N' != ch && (1 < argc))
ch = def_ch;
};
BYE: fputc(ch, stderr);
fputc('\n', stderr);
return ('Y' == ch);
}
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