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    Length: 878 (0x36e)
    Types: TextFile
    Names: »ask.c«

└─⟦a0efdde77⟧ Bits:30001252 EUUGD11 Tape, 1987 Spring Conference Helsinki
    └─ ⟦this⟧ »EUUGD11/euug-87hel/sec8/multivol/ask.c« 

TextFile

#include <stdio.h>
#define	bool	short
#define	TRUE	1
#define FALSE	0

char *
ask(prompt)
	char	*prompt;
{
	static	char	ans[256];
	static	bool	ttyclosed = TRUE;
	static	FILE	*tty;

	if (ttyclosed)
		if ((tty = fopen("/dev/tty", "r")) == NULL) {
			perror("/dev/tty");
			exit(1);
		} else
			ttyclosed = FALSE;

	fprintf(stderr, prompt);
	fgets(ans, sizeof(ans), tty);
	/* fclose(tty); */
	return ans;
}

/* VARARGS1 */
char *
askf(format, val1, val2, val3, val4)
	char	*format;
	int	val1, val2, val3, val4;
{
	char	prompt[80];

	sprintf(prompt, format, val1, val2, val3, val4);
	return ask(prompt);
}

bool
y_or_n(prompt)
	char	*prompt;
{
	char	*ans;
	bool	yes, no;

	char	*ask();

	do {
		ans = ask(prompt);
		no  = ans[1] == '\n' && (ans[0]  == 'n' || ans[0]  == 'N' );
		yes = ans[1] == '\n' && (ans[0]  == 'y' || ans[0]  == 'Y' );
	} while (! (yes || no) );
	return(yes);
}