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Comment:Updated to not set "Le" when asking to sign/decrypt (discovered from ActivClient APDU dump)

Reverted last commit where reads of 0 bytes were converted to no-ops

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SHA1: f27687387394cbb14222b94ac945068ba07de174
User & Date: rkeene on 2010-05-17 20:20:16
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Context
2010-05-17
21:39
Updated to deal with reads of unknown size check-in: a42647e45a user: rkeene tags: trunk
20:20
Updated to not set "Le" when asking to sign/decrypt (discovered from ActivClient APDU dump)

Reverted last commit where reads of 0 bytes were converted to no-ops check-in: f276873873 user: rkeene tags: trunk

19:53
Updated to treat a request of read of 0 bytes as a no-op. check-in: 45212cc4ca user: rkeene tags: trunk
Changes
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Modified cackey.c from [84da4e7494] to [c23e82a84b].

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		}
	}

	if (major_rc == 0x61) {
		/* We need to READ */
		CACKEY_DEBUG_PRINTF("Buffer read required");

		if (minor_rc == 0x00) {
			CACKEY_DEBUG_PRINTF("Read of 0 bytes is a no-op, returning in success.");

			return(CACKEY_PCSC_S_OK);
		}

		pcsc_getresp_ret = cackey_send_apdu(slot, GSCIS_CLASS_ISO7816, GSCIS_INSTR_GET_RESPONSE, 0x00, 0x00, 0, NULL, minor_rc, respcode, respdata, &tmp_respdata_len);
		if (pcsc_getresp_ret != CACKEY_PCSC_S_OK) {
			CACKEY_DEBUG_PRINTF("Buffer read failed!  Returning in failure");

			/* End Smartcard Transaction */
			cackey_end_transaction(slot);
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	if (buflen > 255) {
		CACKEY_DEBUG_PRINTF("Error.  buflen is greater than 255 (buflen = %lu)", (unsigned long) buflen);

		return(-1);
	}

	if (outbuflen > 253) {
		le = 253;
	} else {
		le = outbuflen;
	}

	if (slot == NULL) {
		CACKEY_DEBUG_PRINTF("Error.  slot is NULL");

		return(-1);
	}

	if (buf == NULL) {
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	cackey_select_file(slot, identity->pcsc_identity->file);

	tmpbuf_s = tmpbuf;
	while (tmpbuflen) {
		if (tmpbuflen > 245) {
			bytes_to_send = 245;
			p1 = 0x80;
			le = 0x00;
		} else {
			bytes_to_send = tmpbuflen;
			p1 = 0x00;
			le = 0x00;
		}

		send_ret = cackey_send_apdu(slot, GSCIS_CLASS_GLOBAL_PLATFORM, GSCIS_INSTR_SIGNDECRYPT, p1, 0x00, bytes_to_send, tmpbuf, le, &respcode, outbuf, &outbuflen);
		if (send_ret != CACKEY_PCSC_S_OK) {
			CACKEY_DEBUG_PRINTF("ADPU Sending Failed -- returning in error.");

			if (respcode == 0x6982) {
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