/*
 *  Copyright (c) 2000 David Parsons. All rights reserved.
 *
 *  This software is released under a berkeley-style copyright; the
 *  details can be found in the file COPYRIGHT.
 */

#include <stdio.h>

/*
 * ask for a message
 */
void
why_why_why_are_we(char *reason, char *msg, int len)
{
    char *tail = msg;

    if (isatty(0))
	printf("What is %s [%d bytes or less],\n"
	       "terminated with single ``.'' or end of file:\n", reason, len);

    while (1) {
	if (isatty(0)) {
	    printf("%4d> ", len - (tail-msg));
	    fflush(stdout);
	}
	if (fgets(tail, len-(msg-tail),stdin) == NULL)
	    break;
	if (tail[0] == '.' && tail[1] == '\n')
	    break;
	tail += strlen(tail);
	if (tail[-1] == '\n') {
	    tail[-1] = '\r';
	    tail[0]  = '\n';
	    tail++;
	}
	if (tail == msg+len)
	    error("message too long -- please keep it under %d bytes", len);
    }
    *tail = 0;
} /* why_why_why_are_we */