BIO_FLAGS_IN_EOF
b->flags |= BIO_FLAGS_IN_EOF;
ret = (b->flags & BIO_FLAGS_IN_EOF) != 0;
bio->flags |= BIO_FLAGS_IN_EOF;
return ret > 0 || (bio->flags & BIO_FLAGS_IN_EOF) != 0 ? ptr - buf : ret;
b->flags |= BIO_FLAGS_IN_EOF;
ret = (b->flags & BIO_FLAGS_IN_EOF) != 0;
b->flags |= BIO_FLAGS_IN_EOF;
ret = (b->flags & BIO_FLAGS_IN_EOF) != 0;