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- do our own chunking in read/write binary 

git-svn-id: https://www.opensc-project.org/svnp/opensc/trunk@614 c6295689-39f2-0310-b995-f0e70906c6a9
This commit is contained in:
okir 2002-06-02 21:39:07 +00:00
parent f9d33b1aa8
commit f49e681c92
1 changed files with 39 additions and 4 deletions
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43
src/libopensc/card-etoken.c
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@ -25,6 +25,9 @@
#include <ctype.h>
#include <string.h>
/* andreas says: hm, my card only works for small payloads */
#define ETOKEN_MAX_PAYLOAD 120
static const struct sc_card_operations *iso_ops = NULL;
struct sc_card_operations etoken_ops;
@ -56,6 +59,9 @@ int etoken_init(struct sc_card *card)
{
card->cla = 0x00;
/* Tell the upper layers we do our own payload chunking
* in read/update/write_binary */
card->caps |= SC_CARD_CAP_APDU_EXT;
return 0;
}
@ -448,10 +454,38 @@ static int etoken_update_binary(struct sc_card *card,
unsigned int idx, const u8 *buf,
size_t count, unsigned long flags)
{
/* hm, my card only works for small payloads */
if (count > 120)
count = 120;
return iso_ops->update_binary(card, idx, buf, count, flags);
int n, total = 0;
do {
if ((n = count) > ETOKEN_MAX_PAYLOAD)
n = ETOKEN_MAX_PAYLOAD;
n = iso_ops->update_binary(card, idx+total, buf+total, n, flags);
if (n < 0)
break;
count -= n;
total += n;
} while (count);
return total? total : n;
}
static int etoken_read_binary(struct sc_card *card,
unsigned int idx, u8 *buf,
size_t count, unsigned long flags)
{
int n, total = 0;
do {
if ((n = count) > ETOKEN_MAX_PAYLOAD)
n = ETOKEN_MAX_PAYLOAD;
n = iso_ops->read_binary(card, idx+total, buf+total, n, flags);
if (n < 0)
break;
count -= n;
total += n;
} while (count);
return total? total : n;
}
/* eToken R2 supports WRITE_BINARY, PRO Tokens support UPDATE_BINARY */
@ -467,6 +501,7 @@ const struct sc_card_driver * sc_get_driver(void)
etoken_ops.select_file = etoken_select_file;
etoken_ops.create_file = etoken_create_file;
etoken_ops.update_binary = etoken_update_binary;
etoken_ops.read_binary = etoken_read_binary;
etoken_ops.list_files = etoken_list_files;
etoken_ops.check_sw = etoken_check_sw;