/*---------------------------------------------------------------------------*/
static int on_request(struct xio_session *session,
struct xio_msg *req,
int more_in_batch,
void *cb_prv_data)
{
struct xio_msg *rsp;
if (req->status)
printf("**** request completed with error. [%s]\n",
xio_strerror(req->status));
/* process request */
process_request(req);
/* alloc transaction */
rsp = msg_pool_get(pool);
rsp->request = req;
rsp->more_in_batch = 0;
/* fill response */
msg_set(rsp, 0,
test_config.hdr_len,
test_config.data_len);
if (xio_send_response(rsp) == -1) {
printf("**** [%p] Error - xio_send_msg failed. %s\n",
session, xio_strerror(xio_errno()));
msg_pool_put(pool, rsp);
}
return 0;
}
ssize_t parse_response_line(io *s, int *retcode, unsigned char linecpy[512])
{
/* 512 is maximum length of response line */
int i, j;
unsigned char line[512] = { 0 };
int c;
for(i = 0; i < 512; i++) {
c = io_getc(s);
switch(c) {
case EOF:
msg_set("Unexpected end of stream in response line");
return -1;
case '\n':
line[i] = '\0'; /* intentional */
goto ret;
default:
line[i] = (unsigned char)c;
break;
}
}
if(i == 512) {
msg_set("Response line exceeding maximum 512 bytes");
return -1;
}
if(i < 4) {
msg_set("Response line too small to contain response code");
return -1;
}
ret:
*retcode = 0;
for(j = 0; j < 3; j++) {
c = line[j];
if(c < '0' || c > '9') {
msg_set("Response line did not contain 3-digit response code");
return -1;
}
*retcode *= 10;
*retcode += c - '0';
}
if(linecpy != NULL)
memcpy(linecpy, line, sizeof(line));
return i;
}
/*---------------------------------------------------------------------------*/
static int on_new_session(struct xio_session *session,
struct xio_new_session_req *session_data,
void *cb_prv_data)
{
struct xio_msg *req;
int i = 0;
printf("**** [%p] on_new_session :%s:%d\n", session,
get_ip((struct sockaddr *)&session_data->src_addr),
get_port((struct sockaddr *)&session_data->src_addr));
xio_accept(session, NULL, 0, NULL, 0);
msg_pool_reset(pool);
conn = xio_get_connection(session, ctx);
printf("**** starting ...\n");
while (1) {
/* create transaction */
req = msg_pool_get(pool);
if (req == NULL)
break;
/* get pointers to internal buffers */
req->in.header.iov_base = NULL;
req->in.header.iov_len = 0;
req->in.data_iovlen = 1;
req->in.data_iov[0].iov_base = NULL;
req->in.data_iov[0].iov_len = ONE_MB;
req->in.data_iov[0].mr = NULL;
/* recycle the message and fill new request */
msg_set(req, 1,
test_config.hdr_len,
test_config.data_len);
/* try to send it */
if (xio_send_request(conn, req) == -1) {
printf("**** sent %d messages\n", i);
if (xio_errno() != EAGAIN)
printf("**** [%p] Error - xio_send_msg " \
"failed. %s\n",
session,
xio_strerror(xio_errno()));
msg_pool_put(pool, req);
return 0;
}
i++;
if (i == 256)
break;
}
return 0;
}
/*---------------------------------------------------------------------------*/
static int on_response(struct xio_session *session,
struct xio_msg *rsp,
int more_in_batch,
void *cb_prv_data)
{
process_response(rsp);
if (rsp->status)
printf("**** message completed with error. [%s]\n",
xio_strerror(rsp->status));
/* message is no longer needed */
xio_release_response(rsp);
/* reset message */
rsp->in.header.iov_base = NULL;
rsp->in.header.iov_len = 0;
rsp->in.data_iovlen = 1;
rsp->in.data_iov[0].iov_base = NULL;
rsp->in.data_iov[0].iov_len = ONE_MB;
rsp->in.data_iov[0].mr = NULL;
rsp->sn = 0;
rsp->more_in_batch = 0;
do {
/* recycle the message and fill new request */
msg_set(rsp, 1,
test_config.hdr_len,
test_config.data_len);
/* try to send it */
if (xio_send_request(conn, rsp) == -1) {
if (xio_errno() != EAGAIN)
printf("**** [%p] Error - xio_send_msg " \
"failed %s\n",
session,
xio_strerror(xio_errno()));
msg_pool_put(pool, rsp);
return 0;
}
} while (0);
return 0;
}
/* ICAP_PIXELFLAVOR */
static TW_UINT16 SANE_ICAPPixelFlavor (pTW_CAPABILITY pCapability, TW_UINT16 action)
{
TW_UINT16 twCC = TWCC_BADCAP;
#ifdef SONAME_LIBSANE
static const TW_UINT32 possible_values[] = { TWPF_CHOCOLATE, TWPF_VANILLA };
TW_UINT32 val;
TW_UINT32 flavor = activeDS.sane_param.depth == 1 ? TWPF_VANILLA : TWPF_CHOCOLATE;
TRACE("ICAP_PIXELFLAVOR\n");
switch (action)
{
case MSG_QUERYSUPPORT:
twCC = set_onevalue(pCapability, TWTY_INT32,
TWQC_GET | TWQC_SET | TWQC_GETDEFAULT | TWQC_GETCURRENT | TWQC_RESET );
break;
case MSG_GET:
twCC = msg_get_enum(pCapability, possible_values, sizeof(possible_values) / sizeof(possible_values[0]),
TWTY_UINT16, flavor, flavor);
break;
case MSG_SET:
twCC = msg_set(pCapability, &val);
if (twCC == TWCC_SUCCESS)
{
FIXME("Stub: PIXELFLAVOR set to %d, but ignored\n", val);
}
break;
case MSG_GETDEFAULT:
twCC = set_onevalue(pCapability, TWTY_UINT16, flavor);
break;
case MSG_RESET:
/* .. fall through intentional .. */
case MSG_GETCURRENT:
twCC = set_onevalue(pCapability, TWTY_UINT16, flavor);
break;
}
#endif
return twCC;
}
/* ICAP_XFERMECH */
static TW_UINT16 SANE_ICAPXferMech (pTW_CAPABILITY pCapability, TW_UINT16 action)
{
static const TW_UINT32 possible_values[] = { TWSX_NATIVE, TWSX_MEMORY };
TW_UINT32 val;
TW_UINT16 twCC = TWCC_BADCAP;
TRACE("ICAP_XFERMECH\n");
switch (action)
{
case MSG_QUERYSUPPORT:
twCC = set_onevalue(pCapability, TWTY_INT32,
TWQC_GET | TWQC_SET | TWQC_GETDEFAULT | TWQC_GETCURRENT | TWQC_RESET );
break;
case MSG_GET:
twCC = msg_get_enum(pCapability, possible_values, sizeof(possible_values) / sizeof(possible_values[0]),
TWTY_UINT16, activeDS.capXferMech, TWSX_NATIVE);
break;
case MSG_SET:
twCC = msg_set(pCapability, &val);
if (twCC == TWCC_SUCCESS)
{
activeDS.capXferMech = (TW_UINT16) val;
FIXME("Partial Stub: XFERMECH set to %d, but ignored\n", val);
}
break;
case MSG_GETDEFAULT:
twCC = set_onevalue(pCapability, TWTY_UINT16, TWSX_NATIVE);
break;
case MSG_RESET:
activeDS.capXferMech = TWSX_NATIVE;
/* .. fall through intentional .. */
case MSG_GETCURRENT:
twCC = set_onevalue(pCapability, TWTY_UINT16, activeDS.capXferMech);
FIXME("Partial Stub: XFERMECH of %d not actually used\n", activeDS.capXferMech);
break;
}
return twCC;
}
/* ICAP_UNITS */
static TW_UINT16 SANE_ICAPUnits (pTW_CAPABILITY pCapability, TW_UINT16 action)
{
TW_UINT32 val;
TW_UINT16 twCC = TWCC_BADCAP;
TRACE("ICAP_UNITS\n");
switch (action)
{
case MSG_QUERYSUPPORT:
twCC = set_onevalue(pCapability, TWTY_INT32,
TWQC_GET | TWQC_SET | TWQC_GETDEFAULT | TWQC_GETCURRENT | TWQC_RESET );
break;
case MSG_GET:
twCC = set_onevalue(pCapability, TWTY_UINT16, TWUN_INCHES);
break;
case MSG_SET:
twCC = msg_set(pCapability, &val);
if (twCC == TWCC_SUCCESS)
{
if (val != TWUN_INCHES)
{
ERR("Sane supports only SANE_UNIT_DPI\n");
twCC = TWCC_BADVALUE;
}
}
break;
case MSG_GETDEFAULT:
case MSG_RESET:
/* .. fall through intentional .. */
case MSG_GETCURRENT:
twCC = set_onevalue(pCapability, TWTY_UINT16, TWUN_INCHES);
break;
}
return twCC;
}
/* ICAP_COMPRESSION */
static TW_UINT16 SANE_ICAPCompression (pTW_CAPABILITY pCapability, TW_UINT16 action)
{
static const TW_UINT32 possible_values[] = { TWCP_NONE };
TW_UINT32 val;
TW_UINT16 twCC = TWCC_BADCAP;
TRACE("ICAP_COMPRESSION\n");
switch (action)
{
case MSG_QUERYSUPPORT:
twCC = set_onevalue(pCapability, TWTY_INT32,
TWQC_GET | TWQC_SET | TWQC_GETDEFAULT | TWQC_GETCURRENT | TWQC_RESET );
break;
case MSG_GET:
twCC = msg_get_enum(pCapability, possible_values, sizeof(possible_values) / sizeof(possible_values[0]),
TWTY_UINT16, TWCP_NONE, TWCP_NONE);
FIXME("Partial stub: We don't attempt to support compression\n");
break;
case MSG_SET:
twCC = msg_set(pCapability, &val);
if (twCC == TWCC_SUCCESS)
FIXME("Partial Stub: COMPRESSION set to %d, but ignored\n", val);
break;
case MSG_GETDEFAULT:
twCC = set_onevalue(pCapability, TWTY_UINT16, TWCP_NONE);
break;
case MSG_RESET:
/* .. fall through intentional .. */
case MSG_GETCURRENT:
twCC = set_onevalue(pCapability, TWTY_UINT16, TWCP_NONE);
break;
}
return twCC;
}
/* CAP_XFERCOUNT */
static TW_UINT16 SANE_CAPXferCount (pTW_CAPABILITY pCapability, TW_UINT16 action)
{
TW_UINT32 val;
TW_UINT16 twCC = TWCC_BADCAP;
TRACE("CAP_XFERCOUNT\n");
switch (action)
{
case MSG_QUERYSUPPORT:
twCC = set_onevalue(pCapability, TWTY_INT32,
TWQC_GET | TWQC_SET | TWQC_GETDEFAULT | TWQC_GETCURRENT | TWQC_RESET );
break;
case MSG_GET:
twCC = set_onevalue(pCapability, TWTY_INT16, -1);
FIXME("Partial Stub: Reporting only support for transfer all\n");
break;
case MSG_SET:
twCC = msg_set(pCapability, &val);
if (twCC == TWCC_SUCCESS)
FIXME("Partial Stub: XFERCOUNT set to %d, but ignored\n", val);
break;
case MSG_GETDEFAULT:
twCC = set_onevalue(pCapability, TWTY_INT16, -1);
break;
case MSG_RESET:
/* .. fall through intentional .. */
case MSG_GETCURRENT:
twCC = set_onevalue(pCapability, TWTY_INT16, -1);
break;
}
return twCC;
}
/* CAP_AUTOFEED */
static TW_UINT16 SANE_CAPAutofeed (pTW_CAPABILITY pCapability, TW_UINT16 action)
{
TW_UINT16 twCC = TWCC_BADCAP;
#ifdef SONAME_LIBSANE
TW_UINT32 val;
SANE_Bool autofeed;
SANE_Status status;
TRACE("CAP_AUTOFEED\n");
if (sane_option_get_bool(activeDS.deviceHandle, "batch-scan", &autofeed, NULL) != SANE_STATUS_GOOD)
return TWCC_BADCAP;
switch (action)
{
case MSG_QUERYSUPPORT:
twCC = set_onevalue(pCapability, TWTY_INT32,
TWQC_GET | TWQC_SET | TWQC_GETDEFAULT | TWQC_GETCURRENT | TWQC_RESET );
break;
case MSG_GET:
twCC = set_onevalue(pCapability, TWTY_BOOL, autofeed);
break;
case MSG_SET:
twCC = msg_set(pCapability, &val);
if (twCC == TWCC_SUCCESS)
{
if (val)
autofeed = SANE_TRUE;
else
autofeed = SANE_FALSE;
status = sane_option_set_bool(activeDS.deviceHandle, "batch-scan", autofeed, NULL);
if (status != SANE_STATUS_GOOD)
{
ERR("Error %s: Could not set batch-scan to %d\n", psane_strstatus(status), autofeed);
return sane_status_to_twcc(status);
}
}
break;
case MSG_GETDEFAULT:
twCC = set_onevalue(pCapability, TWTY_BOOL, SANE_TRUE);
break;
case MSG_RESET:
autofeed = SANE_TRUE;
status = sane_option_set_bool(activeDS.deviceHandle, "batch-scan", autofeed, NULL);
if (status != SANE_STATUS_GOOD)
{
ERR("Error %s: Could not reset batch-scan to SANE_TRUE\n", psane_strstatus(status));
return sane_status_to_twcc(status);
}
/* .. fall through intentional .. */
case MSG_GETCURRENT:
twCC = set_onevalue(pCapability, TWTY_BOOL, autofeed);
break;
}
#endif
return twCC;
}
/* ICAP_SUPPORTEDSIZES */
static TW_UINT16 SANE_ICAPSupportedSizes (pTW_CAPABILITY pCapability, TW_UINT16 action)
{
TW_UINT16 twCC = TWCC_BADCAP;
#ifdef SONAME_LIBSANE
static TW_UINT32 possible_values[SUPPORTED_SIZE_COUNT];
unsigned int i;
TW_UINT32 val;
TW_UINT16 default_size = get_default_paper_size(supported_sizes, SUPPORTED_SIZE_COUNT);
TW_UINT16 current_size = get_current_paper_size(supported_sizes, SUPPORTED_SIZE_COUNT);
TRACE("ICAP_SUPPORTEDSIZES\n");
switch (action)
{
case MSG_QUERYSUPPORT:
twCC = set_onevalue(pCapability, TWTY_INT32,
TWQC_GET | TWQC_SET | TWQC_GETDEFAULT | TWQC_GETCURRENT | TWQC_RESET );
break;
case MSG_GET:
for (i = 0; i < sizeof(supported_sizes) / sizeof(supported_sizes[0]); i++)
possible_values[i] = supported_sizes[i].size;
twCC = msg_get_enum(pCapability, possible_values, sizeof(possible_values) / sizeof(possible_values[0]),
TWTY_UINT16, current_size, default_size);
WARN("Partial Stub: our supported size selection is a bit thin.\n");
break;
case MSG_SET:
twCC = msg_set(pCapability, &val);
if (twCC == TWCC_SUCCESS)
for (i = 1; i < SUPPORTED_SIZE_COUNT; i++)
if (supported_sizes[i].size == val)
return set_width_height(supported_sizes[i].x, supported_sizes[i].y);
ERR("Unsupported size %d\n", val);
twCC = TWCC_BADCAP;
break;
case MSG_GETDEFAULT:
twCC = set_onevalue(pCapability, TWTY_UINT16, default_size);
break;
case MSG_RESET:
twCC = TWCC_BADCAP;
for (i = 1; i < SUPPORTED_SIZE_COUNT; i++)
if (supported_sizes[i].size == default_size)
{
twCC = set_width_height(supported_sizes[i].x, supported_sizes[i].y);
break;
}
if (twCC != TWCC_SUCCESS)
return twCC;
/* .. fall through intentional .. */
case MSG_GETCURRENT:
twCC = set_onevalue(pCapability, TWTY_UINT16, current_size);
break;
}
#undef SUPPORTED_SIZE_COUNT
#endif
return twCC;
}
/* ICAP_XRESOLUTION, ICAP_YRESOLUTION */
static TW_UINT16 SANE_ICAPResolution (pTW_CAPABILITY pCapability, TW_UINT16 action, TW_UINT16 cap)
{
TW_UINT16 twCC = TWCC_BADCAP;
#ifdef SONAME_LIBSANE
TW_UINT32 val;
SANE_Int current_resolution;
TW_FIX32 *default_res;
const char *best_option_name;
SANE_Int minval, maxval, quantval;
SANE_Status sane_rc;
SANE_Int set_status;
TRACE("ICAP_%cRESOLUTION\n", cap == ICAP_XRESOLUTION ? 'X' : 'Y');
/* Some scanners support 'x-resolution', most seem to just support 'resolution' */
if (cap == ICAP_XRESOLUTION)
{
best_option_name = "x-resolution";
default_res = &activeDS.defaultXResolution;
}
else
{
best_option_name = "y-resolution";
default_res = &activeDS.defaultYResolution;
}
if (sane_option_get_int(activeDS.deviceHandle, best_option_name, ¤t_resolution) != SANE_STATUS_GOOD)
{
best_option_name = "resolution";
if (sane_option_get_int(activeDS.deviceHandle, best_option_name, ¤t_resolution) != SANE_STATUS_GOOD)
return TWCC_BADCAP;
}
/* Sane does not support a concept of 'default' resolution, so we have to
* cache the resolution the very first time we load the scanner, and use that
* as the default */
if (cap == ICAP_XRESOLUTION && ! activeDS.XResolutionSet)
{
default_res->Whole = current_resolution;
default_res->Frac = 0;
activeDS.XResolutionSet = TRUE;
}
if (cap == ICAP_YRESOLUTION && ! activeDS.YResolutionSet)
{
default_res->Whole = current_resolution;
default_res->Frac = 0;
activeDS.YResolutionSet = TRUE;
}
switch (action)
{
case MSG_QUERYSUPPORT:
twCC = set_onevalue(pCapability, TWTY_INT32,
TWQC_GET | TWQC_SET | TWQC_GETDEFAULT | TWQC_GETCURRENT | TWQC_RESET );
break;
case MSG_GET:
sane_rc = sane_option_probe_resolution(activeDS.deviceHandle, best_option_name, &minval, &maxval, &quantval);
if (sane_rc != SANE_STATUS_GOOD)
twCC = TWCC_BADCAP;
else
twCC = msg_get_range(pCapability, TWTY_FIX32,
minval, maxval, quantval == 0 ? 1 : quantval, default_res->Whole, current_resolution);
break;
case MSG_SET:
twCC = msg_set(pCapability, &val);
if (twCC == TWCC_SUCCESS)
{
TW_FIX32 f32;
memcpy(&f32, &val, sizeof(f32));
sane_rc = sane_option_set_int(activeDS.deviceHandle, best_option_name, f32.Whole, &set_status);
if (sane_rc != SANE_STATUS_GOOD)
{
FIXME("Status of %d not expected or handled\n", sane_rc);
twCC = TWCC_BADCAP;
}
else if (set_status == SANE_INFO_INEXACT)
twCC = TWCC_CHECKSTATUS;
}
break;
case MSG_GETDEFAULT:
twCC = set_onevalue(pCapability, TWTY_FIX32, default_res->Whole);
break;
case MSG_RESET:
sane_rc = sane_option_set_int(activeDS.deviceHandle, best_option_name, default_res->Whole, NULL);
if (sane_rc != SANE_STATUS_GOOD)
return TWCC_BADCAP;
/* .. fall through intentional .. */
case MSG_GETCURRENT:
twCC = set_onevalue(pCapability, TWTY_FIX32, current_resolution);
break;
}
#endif
return twCC;
}
/* ICAP_PIXELTYPE */
static TW_UINT16 SANE_ICAPPixelType (pTW_CAPABILITY pCapability, TW_UINT16 action)
{
TW_UINT16 twCC = TWCC_BADCAP;
#ifdef SONAME_LIBSANE
TW_UINT32 possible_values[3];
int possible_value_count;
TW_UINT32 val;
SANE_Status rc;
SANE_Int status;
SANE_String_Const *choices;
char current_mode[64];
TW_UINT16 current_pixeltype = TWPT_BW;
SANE_Char mode[64];
TRACE("ICAP_PIXELTYPE\n");
rc = sane_option_probe_mode(activeDS.deviceHandle, &choices, current_mode, sizeof(current_mode));
if (rc != SANE_STATUS_GOOD)
{
ERR("Unable to retrieve mode from sane, ICAP_PIXELTYPE unsupported\n");
return twCC;
}
sane_mode_to_pixeltype(current_mode, ¤t_pixeltype);
/* Sane does not support a concept of a default mode, so we simply cache
* the first mode we find */
if (! activeDS.PixelTypeSet)
{
activeDS.PixelTypeSet = TRUE;
activeDS.defaultPixelType = current_pixeltype;
}
switch (action)
{
case MSG_QUERYSUPPORT:
twCC = set_onevalue(pCapability, TWTY_INT32,
TWQC_GET | TWQC_SET | TWQC_GETDEFAULT | TWQC_GETCURRENT | TWQC_RESET );
break;
case MSG_GET:
for (possible_value_count = 0; choices && *choices && possible_value_count < 3; choices++)
{
TW_UINT16 pix;
if (sane_mode_to_pixeltype(*choices, &pix))
possible_values[possible_value_count++] = pix;
}
twCC = msg_get_enum(pCapability, possible_values, possible_value_count,
TWTY_UINT16, current_pixeltype, activeDS.defaultPixelType);
break;
case MSG_SET:
twCC = msg_set(pCapability, &val);
if (twCC == TWCC_SUCCESS)
{
TRACE("Setting pixeltype to %d\n", val);
if (! pixeltype_to_sane_mode(val, mode, sizeof(mode)))
return TWCC_BADVALUE;
status = 0;
rc = sane_option_set_str(activeDS.deviceHandle, "mode", mode, &status);
/* Some SANE devices use 'Grayscale' instead of the standard 'Gray' */
if (rc == SANE_STATUS_INVAL && strcmp(mode, SANE_VALUE_SCAN_MODE_GRAY) == 0)
{
strcpy(mode, "Grayscale");
rc = sane_option_set_str(activeDS.deviceHandle, "mode", mode, &status);
}
if (rc != SANE_STATUS_GOOD)
return sane_status_to_twcc(rc);
if (status & SANE_INFO_RELOAD_PARAMS)
psane_get_parameters (activeDS.deviceHandle, &activeDS.sane_param);
}
break;
case MSG_GETDEFAULT:
twCC = set_onevalue(pCapability, TWTY_UINT16, activeDS.defaultPixelType);
break;
case MSG_RESET:
current_pixeltype = activeDS.defaultPixelType;
if (! pixeltype_to_sane_mode(current_pixeltype, mode, sizeof(mode)))
return TWCC_BADVALUE;
status = 0;
rc = sane_option_set_str(activeDS.deviceHandle, "mode", mode, &status);
/* Some SANE devices use 'Grayscale' instead of the standard 'Gray' */
if (rc == SANE_STATUS_INVAL && strcmp(mode, SANE_VALUE_SCAN_MODE_GRAY) == 0)
{
strcpy(mode, "Grayscale");
rc = sane_option_set_str(activeDS.deviceHandle, "mode", mode, &status);
}
if (rc != SANE_STATUS_GOOD)
return sane_status_to_twcc(rc);
if (status & SANE_INFO_RELOAD_PARAMS)
psane_get_parameters (activeDS.deviceHandle, &activeDS.sane_param);
/* .. fall through intentional .. */
case MSG_GETCURRENT:
twCC = set_onevalue(pCapability, TWTY_UINT16, current_pixeltype);
TRACE("Returning current pixeltype of %d\n", current_pixeltype);
break;
}
#endif
return twCC;
}
/* CAP_FEEDERENABLED */
static TW_UINT16 SANE_CAPFeederEnabled (pTW_CAPABILITY pCapability, TW_UINT16 action)
{
TW_UINT16 twCC = TWCC_BADCAP;
#ifdef SONAME_LIBSANE
TW_UINT32 val;
TW_BOOL enabled;
SANE_Status status;
SANE_Char source[64];
TRACE("CAP_FEEDERENABLED\n");
if (sane_option_get_str(activeDS.deviceHandle, SANE_NAME_SCAN_SOURCE, source, sizeof(source), NULL) != SANE_STATUS_GOOD)
return TWCC_BADCAP;
if (strcmp(source, "Auto") == 0 || strcmp(source, "ADF") == 0)
enabled = TRUE;
else
enabled = FALSE;
switch (action)
{
case MSG_QUERYSUPPORT:
twCC = set_onevalue(pCapability, TWTY_INT32,
TWQC_GET | TWQC_SET | TWQC_GETDEFAULT | TWQC_GETCURRENT | TWQC_RESET );
break;
case MSG_GET:
twCC = set_onevalue(pCapability, TWTY_BOOL, enabled);
break;
case MSG_SET:
twCC = msg_set(pCapability, &val);
if (twCC == TWCC_SUCCESS)
{
if (val)
enabled = TRUE;
else
enabled = FALSE;
strcpy(source, "ADF");
status = sane_option_set_str(activeDS.deviceHandle, SANE_NAME_SCAN_SOURCE, source, NULL);
if (status != SANE_STATUS_GOOD)
{
strcpy(source, "Auto");
status = sane_option_set_str(activeDS.deviceHandle, SANE_NAME_SCAN_SOURCE, source, NULL);
}
if (status != SANE_STATUS_GOOD)
{
ERR("Error %s: Could not set source to either ADF or Auto\n", psane_strstatus(status));
return sane_status_to_twcc(status);
}
}
break;
case MSG_GETDEFAULT:
twCC = set_onevalue(pCapability, TWTY_BOOL, TRUE);
break;
case MSG_RESET:
strcpy(source, "Auto");
if (sane_option_set_str(activeDS.deviceHandle, SANE_NAME_SCAN_SOURCE, source, NULL) == SANE_STATUS_GOOD)
enabled = TRUE;
twCC = TWCC_SUCCESS;
/* .. fall through intentional .. */
case MSG_GETCURRENT:
twCC = set_onevalue(pCapability, TWTY_BOOL, enabled);
break;
}
#endif
return twCC;
}
static ssize_t message_store_helper(const char *buf, size_t count,
struct msg_group_t *group)
{
char *cp = (char *) buf;
char *end = cp + count;
char *linefeed = NULL;
char *temp = NULL;
ssize_t msg_stored = 0;
ssize_t retval = count;
size_t desc_length = 0;
unsigned long index = 0;
int received = 0;
int used = 0;
int rejected = 0;
int reset = 0;
enum msg_index_t firstmessage = group->start;
enum msg_index_t lastmessage = group->end;
enum msg_index_t curmessage;
while (cp < end) {
while ((cp < end) && (*cp == ' ' || *cp == '\t'))
cp++;
if (cp == end)
break;
if (strchr("dDrR", *cp)) {
reset = 1;
break;
}
received++;
linefeed = strchr(cp, '\n');
if (!linefeed) {
rejected++;
break;
}
if (!isdigit(*cp)) {
rejected++;
cp = linefeed + 1;
continue;
}
index = simple_strtoul(cp, &temp, 10);
while ((temp < linefeed) && (*temp == ' ' || *temp == '\t'))
temp++;
desc_length = linefeed - temp;
curmessage = firstmessage + index;
/*
* Note the check (curmessage < firstmessage). It is not
* redundant. Suppose that the user gave us an index
* equal to ULONG_MAX - 1. If firstmessage > 1, then
* firstmessage + index < firstmessage!
*/
if ((curmessage < firstmessage) || (curmessage > lastmessage)) {
rejected++;
cp = linefeed + 1;
continue;
}
msg_stored = msg_set(curmessage, temp, desc_length);
if (msg_stored < 0) {
retval = msg_stored;
if (msg_stored == -ENOMEM)
reset = 1;
break;
} else {
used++;
}
cp = linefeed + 1;
}
if (reset)
reset_msg_group(group);
report_msg_status(reset, received, used, rejected, group->name);
return retval;
}
ssize_t parse_response_block(io *s, io *buf)
{
int c;
enum {
meat,
line,
dot,
dot_r,
} state;
size_t sz = 0;
state = line;
while((c = io_getc(s)) != EOF) {
sz += 1;
switch(state) {
case meat:
switch(c) {
case '\n':
io_putc(buf, '\n');
state = line;
break;
default:
io_putc(buf, c);
break;
}
break;
case line:
switch(c) {
case '.':
state = dot;
break;
case '\n':
io_putc(buf, '\n');
break;
default:
state = meat;
io_putc(buf, c);
break;
}
break;
case dot:
switch(c) {
case '\r':
state = dot_r;
break;
case '\n':
goto ret;
case '.':
state = meat;
io_putc(buf, '.');
break;
default:
state = meat;
io_putc(buf, '.');
io_putc(buf, c);
break;
}
break;
case dot_r:
switch(c) {
case '\n':
goto ret;
default:
state = meat;
io_putc(buf, '.');
io_putc(buf, '\r');
io_putc(buf, c);
break;
}
}
}
if(c == EOF) {
msg_set("Unexpected end of stream in response block");
return -1;
}
ret:
return sz;
}