2  * Copyright (c) 2022 Micro Focus or one of its affiliates.
3  * Copyright (c) 2022 Yubico AB. All rights reserved.
4  * Use of this source code is governed by a BSD-style
6  * SPDX-License-Identifier: BSD-2-Clause
56 	/* sanity check "multi-string" */  in list_readers()
61 	if ((*buf)[len - 1] != 0 || (*buf)[len - 2] != '\0') {  in list_readers()
84 	    n > READERS - 1) {  in get_reader()
97 		n--;  in get_reader()
111 		req->dwProtocol = SCARD_PCI_T0->dwProtocol;  in prepare_io_request()
112 		req->cbPciLength = SCARD_PCI_T0->cbPciLength;  in prepare_io_request()
115 		req->dwProtocol = SCARD_PCI_T1->dwProtocol;  in prepare_io_request()
116 		req->cbPciLength = SCARD_PCI_T1->cbPciLength;  in prepare_io_request()
121 		return -1;  in prepare_io_request()
134 	int ok = -1;  in copy_info()
148 	if (asprintf(&di->path, "%s//slot%zu", FIDO_PCSC_PREFIX, idx) == -1) {  in copy_info()
149 		di->path = NULL;  in copy_info()
153 	if (nfc_is_fido(di->path) == false) {  in copy_info()
154 		fido_log_debug("%s: nfc_is_fido: %s", __func__, di->path);  in copy_info()
157 	if ((di->manufacturer = strdup("PC/SC")) == NULL ||  in copy_info()
158 	    (di->product = strdup(reader)) == NULL)  in copy_info()
166 		free(di->path);  in copy_info()
167 		free(di->manufacturer);  in copy_info()
168 		free(di->product);  in copy_info()
275 	dev->ctx = ctx;  in fido_pcsc_open()
276 	dev->h = h;  in fido_pcsc_open()
277 	dev->req = req;  in fido_pcsc_open()
295 	if (dev->h != 0)  in fido_pcsc_close()
296 		SCardDisconnect(dev->h, SCARD_LEAVE_CARD);  in fido_pcsc_close()
297 	if (dev->ctx != 0)  in fido_pcsc_close()
298 		SCardReleaseContext(dev->ctx);  in fido_pcsc_close()
300 	explicit_bzero(dev->rx_buf, sizeof(dev->rx_buf));  in fido_pcsc_close()
311 	if (dev->rx_len == 0 || dev->rx_len > len ||  in fido_pcsc_read()
312 	    dev->rx_len > sizeof(dev->rx_buf)) {  in fido_pcsc_read()
314 		return -1;  in fido_pcsc_read()
316 	fido_log_xxd(dev->rx_buf, dev->rx_len, "%s: reading", __func__);  in fido_pcsc_read()
317 	memcpy(buf, dev->rx_buf, dev->rx_len);  in fido_pcsc_read()
318 	explicit_bzero(dev->rx_buf, sizeof(dev->rx_buf));  in fido_pcsc_read()
319 	r = (int)dev->rx_len;  in fido_pcsc_read()
320 	dev->rx_len = 0;  in fido_pcsc_read()
334 		return -1;  in fido_pcsc_write()
337 	explicit_bzero(dev->rx_buf, sizeof(dev->rx_buf));  in fido_pcsc_write()
338 	dev->rx_len = 0;  in fido_pcsc_write()
339 	n = (DWORD)sizeof(dev->rx_buf);  in fido_pcsc_write()
343 	if ((s = SCardTransmit(dev->h, &dev->req, buf, (DWORD)len, NULL,  in fido_pcsc_write()
344 	    dev->rx_buf, &n)) != SCARD_S_SUCCESS) {  in fido_pcsc_write()
346 		explicit_bzero(dev->rx_buf, sizeof(dev->rx_buf));  in fido_pcsc_write()
347 		return -1;  in fido_pcsc_write()
349 	dev->rx_len = (size_t)n;  in fido_pcsc_write()
351 	fido_log_xxd(dev->rx_buf, dev->rx_len, "%s: read", __func__);  in fido_pcsc_write()
377 	if (d->io_handle != NULL) {  in fido_dev_set_pcsc()
379 		return -1;  in fido_dev_set_pcsc()
381 	d->io_own = true;  in fido_dev_set_pcsc()
382 	d->io = (fido_dev_io_t) {  in fido_dev_set_pcsc()
388 	d->transport = (fido_dev_transport_t) {  in fido_dev_set_pcsc()