ref: 92f91a6af8d64f7124376fac76629cd9f0942a5c
dir: /sys/src/cmd/auth/lib/answer.c/
#include <u.h>
#include <libc.h>
#include <bio.h>
#include <authsrv.h>
#include "authcmdlib.h"
int
answer(char *q)
{
char pr[128];
int y;
snprint(pr, sizeof(pr), "%s [y/n]", q);
q = readcons(pr, nil, 0);
y = q != nil && (*q == 'y' || *q == 'Y');
free(q);
return y;
}