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starcos: check for the maximum length of GET RANDOM 

Some cards only support fetching 8 bytes and less
This commit is contained in:
Frank Morgner 2018-02-16 17:57:21 +01:00
parent cbba3b82f2
commit 784435d00c
1 changed files with 12 additions and 0 deletions
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12
src/libopensc/card-starcos.c
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@ -792,6 +792,17 @@ static int starcos_select_file(sc_card_t *card,
SC_FUNC_RETURN(card->ctx, SC_LOG_DEBUG_VERBOSE, SC_ERROR_INVALID_ARGUMENTS);
}
static int starcos_get_challenge(struct sc_card *card, unsigned char *rnd, size_t len)
{
LOG_FUNC_CALLED(card->ctx);
if (len > 8) {
len = 8;
}
LOG_FUNC_RETURN(card->ctx, iso_ops->get_challenge(card, rnd, len));
}
#define STARCOS_AC_ALWAYS 0x9f
#define STARCOS_AC_NEVER 0x5f
#define STARCOS_PINID2STATE(a) ((((a) & 0x0f) == 0x01) ? ((a) & 0x0f) : (0x0f - ((0x0f & (a)) >> 1)))
@ -1848,6 +1859,7 @@ static struct sc_card_driver * sc_get_driver(void)
starcos_ops.init = starcos_init;
starcos_ops.finish = starcos_finish;
starcos_ops.select_file = starcos_select_file;
starcos_ops.get_challenge = starcos_get_challenge;
starcos_ops.check_sw = starcos_check_sw;
starcos_ops.create_file = starcos_create_file;
starcos_ops.delete_file = NULL;