while (length > 0) {
/* Guarantee buffer space enough for a minimum size transfer */
- if (buffer_write_space(ctx) + (length < 8) < (out ? 4 : 3)
- || (in && buffer_read_space(ctx) < 1))
+ if (buffer_write_space(ctx) + (length < 8) < (out || (!out && !in) ? 4 : 3)
+ || (in && buffer_read_space(ctx) < 1))
retval = mpsse_flush(ctx);
if (length < 8) {
if (this_bytes > 65536)
this_bytes = 65536;
/* Buffer space limit. We already made sure there's space for the minimum
- *transfer. */
- if (out && this_bytes + 3 > buffer_write_space(ctx))
+ * transfer. */
+ if ((out || (!out && !in)) && this_bytes + 3 > buffer_write_space(ctx))
this_bytes = buffer_write_space(ctx) - 3;
if (in && this_bytes > buffer_read_space(ctx))
this_bytes = buffer_read_space(ctx);