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scd: Fix error handling with libusb-compat library.

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* scd/ccid-driver.c (bulk_out): Use LIBUSB_ERRNO_NO_SUCH_DEVICE.

--

With libusb-compat library, the error is different than original
libusb.  (The libusb-compat library is used by Fedora.)
This commit is contained in:
NIIBE Yutaka 2015-11-04 21:07:49 +09:00
parent c5a9fedba6
commit 1e94a672ef
1 changed files with 12 additions and 7 deletions
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19
scd/ccid-driver.c
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@ -1839,6 +1839,11 @@ writen (int fd, const void *buf, size_t nbytes)
return 0;
}
#if defined(ENXIO) && !defined(LIBUSB_PATH_MAX) && defined(__GNU_LIBRARY__)
#define LIBUSB_ERRNO_NO_SUCH_DEVICE ENXIO /* libusb-compat */
#elif defined(ENODEV)
#define LIBUSB_ERRNO_NO_SUCH_DEVICE ENODEV /* Original libusb */
#endif
/* Write a MSG of length MSGLEN to the designated bulk out endpoint.
Returns 0 on success. */
@ -1913,26 +1918,26 @@ bulk_out (ccid_driver_t handle, unsigned char *msg, size_t msglen,
5000 /* ms timeout */);
if (rc == msglen)
return 0;
#ifdef ENODEV
if (rc == -(ENODEV))
#ifdef LIBUSB_ERRNO_NO_SUCH_DEVICE
if (rc == -(LIBUSB_ERRNO_NO_SUCH_DEVICE))
{
/* The Linux libusb returns a negative error value. Catch
the most important one. */
errno = ENODEV;
errno = LIBUSB_ERRNO_NO_SUCH_DEVICE;
rc = -1;
}
#endif /*ENODEV*/
#endif /*LIBUSB_ERRNO_NO_SUCH_DEVICE*/
if (rc == -1)
{
DEBUGOUT_1 ("usb_bulk_write error: %s\n", strerror (errno));
#ifdef ENODEV
if (errno == ENODEV)
#ifdef LIBUSB_ERRNO_NO_SUCH_DEVICE
if (errno == LIBUSB_ERRNO_NO_SUCH_DEVICE)
{
handle->enodev_seen = 1;
return CCID_DRIVER_ERR_NO_READER;
}
#endif /*ENODEV*/
#endif /*LIBUSB_ERRNO_NO_SUCH_DEVICE*/
}
else
DEBUGOUT_1 ("usb_bulk_write failed: %d\n", rc);