static char *
storeline(FILE *in, int *end, int *len, int guess)
{
	static char *line;
	line = calloc(guess, sizeof(char));
	int i = 0, buflen = guess;
	char ch;
	while ((ch = fgetc(in)) != EOF && ch != '\n') {
		if (i == buflen - 1) {
			buflen += guess;
			line = realloc(line, buflen * sizeof(char));
		}
		line[i] = ch;
		++i;
	}
	line[i] = '\0';
	*len = i;
	if (ch == EOF)
		*end = 1;

	return line;
}