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scd: Fix receive buffer size.

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* scd/apdu.c (send_le): Fix the size, adding two for status
bytes to Le.

--

This is long standing bug.  So far, Le was not exact value.
Since forthcoming change will introduce exact value of expected length
of response data, this change is needed.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2016-11-22 20:53:57 +09:00
parent a3b258d1d1
commit 5c2db9dedf
1 changed files with 3 additions and 2 deletions
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5
scd/apdu.c
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@ -3757,8 +3757,9 @@ send_le (int slot, int class, int ins, int p0, int p1,
if (use_extended_length && (le > 256 || le < 0))
{
result_buffer_size = le < 0? 4096 : le;
result_buffer = xtrymalloc (result_buffer_size + 10);
/* Two more bytes are needed for status bytes. */
result_buffer_size = le < 0? 4096 : (le + 2);
result_buffer = xtrymalloc (result_buffer_size);
if (!result_buffer)
{
xfree (apdu_buffer);