bool destination_implObj::supported(const std::string_view &option) const
{
auto s=option.size();
char option_s[s+1];
std::copy(option.begin(), option.end(), option_s);
option_s[s]=0;
info_t::lock lock{*this};
return !!cupsCheckDestSupported(lock->http,
lock->dest,
lock->info,
option_s,
nullptr);
}
static void
show_supported(http_t *http, /* I - Connection to destination */
cups_dest_t *dest, /* I - Destination */
cups_dinfo_t *dinfo, /* I - Destination information */
const char *option, /* I - Option, if any */
const char *value) /* I - Value, if any */
{
ipp_attribute_t *attr; /* Attribute */
int i, /* Looping var */
count; /* Number of values */
if (!option)
{
attr = cupsFindDestSupported(http, dest, dinfo, "job-creation-attributes");
if (attr)
{
count = ippGetCount(attr);
for (i = 0; i < count; i ++)
show_supported(http, dest, dinfo, ippGetString(attr, i, NULL), NULL);
}
else
{
static const char * const options[] =
{ /* List of standard options */
CUPS_COPIES,
CUPS_FINISHINGS,
CUPS_MEDIA,
CUPS_NUMBER_UP,
CUPS_ORIENTATION,
CUPS_PRINT_COLOR_MODE,
CUPS_PRINT_QUALITY,
CUPS_SIDES
};
puts("No job-creation-attributes-supported attribute, probing instead.");
for (i = 0; i < (int)(sizeof(options) / sizeof(options[0])); i ++)
if (cupsCheckDestSupported(http, dest, dinfo, options[i], NULL))
show_supported(http, dest, dinfo, options[i], NULL);
}
}
else if (!value)
{
printf("%s (%s)\n", option, cupsCheckDestSupported(http, dest, dinfo, option, NULL) ? "supported" : "not-supported");
if ((attr = cupsFindDestSupported(http, dest, dinfo, option)) != NULL)
{
count = ippGetCount(attr);
switch (ippGetValueTag(attr))
{
case IPP_TAG_INTEGER :
for (i = 0; i < count; i ++)
printf(" %d\n", ippGetInteger(attr, i));
break;
case IPP_TAG_ENUM :
for (i = 0; i < count; i ++)
printf(" %s\n", ippEnumString(option, ippGetInteger(attr, i)));
break;
case IPP_TAG_RANGE :
for (i = 0; i < count; i ++)
{
int upper, lower = ippGetRange(attr, i, &upper);
printf(" %d-%d\n", lower, upper);
}
break;
case IPP_TAG_RESOLUTION :
for (i = 0; i < count; i ++)
{
int xres, yres;
ipp_res_t units;
xres = ippGetResolution(attr, i, &yres, &units);
if (xres == yres)
printf(" %d%s\n", xres, units == IPP_RES_PER_INCH ? "dpi" : "dpcm");
else
printf(" %dx%d%s\n", xres, yres, units == IPP_RES_PER_INCH ? "dpi" : "dpcm");
}
break;
case IPP_TAG_TEXTLANG :
case IPP_TAG_NAMELANG :
case IPP_TAG_TEXT :
case IPP_TAG_NAME :
case IPP_TAG_KEYWORD :
case IPP_TAG_URI :
case IPP_TAG_URISCHEME :
case IPP_TAG_CHARSET :
case IPP_TAG_LANGUAGE :
case IPP_TAG_MIMETYPE :
for (i = 0; i < count; i ++)
printf(" %s\n", ippGetString(attr, i, NULL));
break;
case IPP_TAG_STRING :
for (i = 0; i < count; i ++)
{
int j, len;
unsigned char *data = ippGetOctetString(attr, i, &len);
fputs(" ", stdout);
for (j = 0; j < len; j ++)
{
if (data[j] < ' ' || data[j] >= 0x7f)
printf("<%02X>", data[j]);
else
putchar(data[j]);
}
putchar('\n');
}
break;
case IPP_TAG_BOOLEAN :
break;
default :
printf(" %s\n", ippTagString(ippGetValueTag(attr)));
break;
}
}
}
else if (cupsCheckDestSupported(http, dest, dinfo, option, value))
puts("YES");
else
puts("NO");
}
