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libopensc: fix #209 

In APDU consider Le=0 as Le=256

Thanks to FrankMpunkt, Martin, ludovic.


git-svn-id: https://www.opensc-project.org/svnp/opensc/trunk@4244 c6295689-39f2-0310-b995-f0e70906c6a9
This commit is contained in:
viktor.tarasov 2010-04-16 19:34:47 +00:00
parent 2fdfe2574d
commit d10effd58c
1 changed files with 6 additions and 4 deletions
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10
src/libopensc/apdu.c
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@ -296,10 +296,11 @@ static int sc_check_apdu(sc_card_t *card, const sc_apdu_t *apdu)
if (apdu->datalen != 0 || apdu->lc != 0)
goto error;
/* data is expected */
if (apdu->le == 0 || apdu->resplen == 0 || apdu->resp == NULL)
if (apdu->resplen == 0 || apdu->resp == NULL)
goto error;
/* return buffer to small */
if (apdu->resplen < apdu->le)
if ((apdu->le == 0 && apdu->resplen < SC_MAX_APDU_BUFFER_SIZE-2)
|| (apdu->resplen < apdu->le))
goto error;
break;
case SC_APDU_CASE_3_SHORT:
@ -318,10 +319,11 @@ static int sc_check_apdu(sc_card_t *card, const sc_apdu_t *apdu)
if (apdu->datalen == 0 || apdu->data == NULL || apdu->lc == 0)
goto error;
/* data is expected */
if (apdu->le == 0 || apdu->resplen == 0 || apdu->resp == NULL)
if (apdu->resplen == 0 || apdu->resp == NULL)
goto error;
/* return buffer to small */
if (apdu->resplen < apdu->le)
if ((apdu->le == 0 && apdu->resplen < SC_MAX_APDU_BUFFER_SIZE-2)
|| (apdu->resplen < apdu->le))
goto error;
/* inconsistent datalen */
if (apdu->datalen != apdu->lc)