Attachment 55498 Details for Bug 83863 – egate_driver.c_snippet

egate_driver.c_snippet

egate_driver.c_snippet (text/plain), 2.47 KB, created by Mohacsi Janos on 2005-08-04 15:39:39 UTC

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Creator: Mohacsi Janos

Created: 2005-08-04 15:39:39 UTC

Size: 2.47 KB

patch

obsolete

>/*
> * Send/receive routines
> */
>static int
>eg_transparent(ifd_reader_t *reader, int dad, const void *inbuffer, size_t inlen,
>              void *outbuffer, size_t outlen)
>{
>     int rc;
>     unsigned char stat;
>     ifd_iso_apdu_t iso;
>     unsigned char cmdbuf[5];
>
>     stat=eg_status(reader);
>     if (stat != EGATE_STATUS_READY) {
>	ifd_debug(2, "device not ready, attempting reset");
>	rc = ifd_usb_control(reader->device, EGATE_DIR_OUT, EGATE_CMD_RESET,
>			     0, 0, NULL, 0, EG_TIMEOUT);
>	if (rc < 0)
>		return IFD_ERROR_COMM_ERROR;
>     }
>     if (ifd_iso_apdu_parse(inbuffer, inlen, &iso) < 0) 
>         return IFD_ERROR_INVALID_ARG;
>     if (inlen >= 5 && inlen < 5 + iso.lc)
>	 return IFD_ERROR_BUFFER_TOO_SMALL;
>     if (outlen < 2 + iso.le)
>	 return IFD_ERROR_BUFFER_TOO_SMALL;
>     memset(cmdbuf,0,5);
>     memmove(cmdbuf, inbuffer, inlen < 5 ? inlen : 5);
>     rc=ifd_usb_control(reader->device, EGATE_DIR_OUT, EGATE_CMD_SEND_APDU,
>		        0, 0, (void *) cmdbuf, 5, -1);
>     if (rc != 5)
>          return IFD_ERROR_COMM_ERROR;
>     stat=eg_status(reader);
>     if (inlen > 5 && stat == EGATE_STATUS_DATA) {
>          rc=ifd_usb_control(reader->device, EGATE_DIR_OUT, EGATE_CMD_WRITE,
>			  0, 0, (void *) (((unsigned char *)inbuffer)+5), iso.lc, -1);
>	  if (rc < 0)
>	       return IFD_ERROR_COMM_ERROR;
>          if (rc != iso.lc) {
>	       ifd_debug(1, "short USB write (%u of %u bytes)", rc, iso.lc);
>               return IFD_ERROR_COMM_ERROR;
>	  }
>          ifd_debug(3, "sent %d bytes of data", iso.lc);
>          stat=eg_status(reader);
>     }
>     if (stat == EGATE_STATUS_DATA) {
>          rc=ifd_usb_control(reader->device, EGATE_DIR_IN, EGATE_CMD_READ, 0, 0,
>                         (void *) outbuffer, iso.le, EG_TIMEOUT);
>	  if (rc < 0)
>	       return IFD_ERROR_COMM_ERROR;
>          if (rc != iso.le) {
>	       ifd_debug(1, "short USB read (%u of %u bytes)", rc, iso.le);
>               return IFD_ERROR_COMM_ERROR;
>          }
>          ifd_debug(3, "received %d bytes of data", iso.le);
>          stat=eg_status(reader);
>     } else
>       iso.le=0;
>     if (stat != EGATE_STATUS_SW)
>          return IFD_ERROR_DEVICE_DISCONNECTED;
>     rc=ifd_usb_control(reader->device, EGATE_DIR_IN, EGATE_CMD_READ, 0, 0,
>                    (void *) (((unsigned char *)outbuffer)+iso.le), 2, EG_TIMEOUT);
>     if (rc != 2)
>          return IFD_ERROR_COMM_ERROR;
>     ifd_debug(2, "returning a %d byte response", iso.le + 2);
>     return iso.le+2;
>}

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Attachments on bug 83863: 55498 | 55499 | 55500