int /* O - Number of OIDs found or -1 on error */
_cupsSNMPWalk(int fd, /* I - SNMP socket */
http_addr_t *address, /* I - Address to query */
int version, /* I - SNMP version */
const char *community,/* I - Community name */
const int *prefix, /* I - OID prefix */
double timeout, /* I - Timeout for each response in seconds */
cups_snmp_cb_t cb, /* I - Function to call for each response */
void *data) /* I - User data pointer that is passed to the callback function */
{
int count = 0; /* Number of OIDs found */
int request_id = 0; /* Current request ID */
cups_snmp_t packet; /* Current response packet */
int lastoid[CUPS_SNMP_MAX_OID];
/* Last OID we got */
/*
* Range check input...
*/
DEBUG_printf(("4_cupsSNMPWalk(fd=%d, address=%p, version=%d, "
"community=\"%s\", prefix=%p, timeout=%.1f, cb=%p, data=%p)",
fd, address, version, community, prefix, timeout, cb, data));
if (fd < 0 || !address || version != CUPS_SNMP_VERSION_1 || !community ||
!prefix || !cb)
{
DEBUG_puts("5_cupsSNMPWalk: Returning -1");
return (-1);
}
/*
* Copy the OID prefix and then loop until we have no more OIDs...
*/
_cupsSNMPCopyOID(packet.object_name, prefix, CUPS_SNMP_MAX_OID);
lastoid[0] = -1;
for (;;)
{
request_id ++;
if (!_cupsSNMPWrite(fd, address, version, community,
CUPS_ASN1_GET_NEXT_REQUEST, request_id,
packet.object_name))
{
DEBUG_puts("5_cupsSNMPWalk: Returning -1");
return (-1);
}
if (!_cupsSNMPRead(fd, &packet, timeout))
{
DEBUG_puts("5_cupsSNMPWalk: Returning -1");
return (-1);
}
if (!_cupsSNMPIsOIDPrefixed(&packet, prefix) ||
_cupsSNMPIsOID(&packet, lastoid))
{
DEBUG_printf(("5_cupsSNMPWalk: Returning %d", count));
return (count);
}
if (packet.error || packet.error_status)
{
DEBUG_printf(("5_cupsSNMPWalk: Returning %d", count > 0 ? count : -1));
return (count > 0 ? count : -1);
}
_cupsSNMPCopyOID(lastoid, packet.object_name, CUPS_SNMP_MAX_OID);
count ++;
(*cb)(&packet, data);
}
}
static void
backend_walk_cb(cups_snmp_t *packet, /* I - SNMP packet */
void *data) /* I - User data (unused) */
{
int i, j, k; /* Looping vars */
static const char * const colors[][2] =
{ /* Standard color names */
{ "black", "#000000" },
{ "blue", "#0000FF" },
{ "brown", "#A52A2A" },
{ "cyan", "#00FFFF" },
{ "dark-gray", "#404040" },
{ "dark gray", "#404040" },
{ "dark-yellow", "#FFCC00" },
{ "dark yellow", "#FFCC00" },
{ "gold", "#FFD700" },
{ "gray", "#808080" },
{ "green", "#00FF00" },
{ "light-black", "#606060" },
{ "light black", "#606060" },
{ "light-cyan", "#E0FFFF" },
{ "light cyan", "#E0FFFF" },
{ "light-gray", "#D3D3D3" },
{ "light gray", "#D3D3D3" },
{ "light-magenta", "#FF77FF" },
{ "light magenta", "#FF77FF" },
{ "magenta", "#FF00FF" },
{ "orange", "#FFA500" },
{ "red", "#FF0000" },
{ "silver", "#C0C0C0" },
{ "white", "#FFFFFF" },
{ "yellow", "#FFFF00" }
};
(void)data;
if (_cupsSNMPIsOIDPrefixed(packet, prtMarkerColorantValue) &&
packet->object_type == CUPS_ASN1_OCTET_STRING)
{
/*
* Get colorant...
*/
i = packet->object_name[prtMarkerColorantValueOffset];
fprintf(stderr, "DEBUG2: prtMarkerColorantValue.1.%d = \"%s\"\n", i,
(char *)packet->object_value.string.bytes);
for (j = 0; j < num_supplies; j ++)
if (supplies[j].colorant == i)
{
for (k = 0; k < (int)(sizeof(colors) / sizeof(colors[0])); k ++)
if (!_cups_strcasecmp(colors[k][0],
(char *)packet->object_value.string.bytes))
{
strlcpy(supplies[j].color, colors[k][1], sizeof(supplies[j].color));
break;
}
}
}
else if (_cupsSNMPIsOIDPrefixed(packet, prtMarkerSuppliesColorantIndex))
{
/*
* Get colorant index...
*/
i = packet->object_name[prtMarkerSuppliesColorantIndexOffset];
if (i < 1 || i > CUPS_MAX_SUPPLIES ||
packet->object_type != CUPS_ASN1_INTEGER)
return;
fprintf(stderr, "DEBUG2: prtMarkerSuppliesColorantIndex.1.%d = %d\n", i,
packet->object_value.integer);
if (i > num_supplies)
num_supplies = i;
supplies[i - 1].colorant = packet->object_value.integer;
}
else if (_cupsSNMPIsOIDPrefixed(packet, prtMarkerSuppliesDescription))
{
/*
* Get supply name/description...
*/
i = packet->object_name[prtMarkerSuppliesDescriptionOffset];
if (i < 1 || i > CUPS_MAX_SUPPLIES ||
packet->object_type != CUPS_ASN1_OCTET_STRING)
return;
if (i > num_supplies)
num_supplies = i;
switch (charset)
{
case CUPS_TC_csASCII :
case CUPS_TC_csUTF8 :
case CUPS_TC_csUnicodeASCII :
strlcpy(supplies[i - 1].name,
(char *)packet->object_value.string.bytes,
sizeof(supplies[0].name));
break;
case CUPS_TC_csISOLatin1 :
case CUPS_TC_csUnicodeLatin1 :
cupsCharsetToUTF8((cups_utf8_t *)supplies[i - 1].name,
(char *)packet->object_value.string.bytes,
sizeof(supplies[0].name), CUPS_ISO8859_1);
break;
case CUPS_TC_csShiftJIS :
case CUPS_TC_csWindows31J : /* Close enough for our purposes */
cupsCharsetToUTF8((cups_utf8_t *)supplies[i - 1].name,
(char *)packet->object_value.string.bytes,
sizeof(supplies[0].name), CUPS_JIS_X0213);
break;
case CUPS_TC_csUCS4 :
case CUPS_TC_csUTF32 :
case CUPS_TC_csUTF32BE :
case CUPS_TC_csUTF32LE :
cupsUTF32ToUTF8((cups_utf8_t *)supplies[i - 1].name,
(cups_utf32_t *)packet->object_value.string.bytes,
sizeof(supplies[0].name));
break;
case CUPS_TC_csUnicode :
case CUPS_TC_csUTF16BE :
case CUPS_TC_csUTF16LE :
utf16_to_utf8((cups_utf8_t *)supplies[i - 1].name,
packet->object_value.string.bytes,
packet->object_value.string.num_bytes,
sizeof(supplies[0].name), charset == CUPS_TC_csUTF16LE);
break;
default :
/*
* If we get here, the printer is using an unknown character set and
* we just want to copy characters that look like ASCII...
*/
{
char *src, *dst; /* Pointers into strings */
/*
* Loop safe because both the object_value and supplies char arrays
* are CUPS_SNMP_MAX_STRING elements long.
*/
for (src = (char *)packet->object_value.string.bytes,
dst = supplies[i - 1].name;
*src;
src ++)
{
if ((*src & 0x80) || *src < ' ' || *src == 0x7f)
*dst++ = '?';
else
*dst++ = *src;
}
*dst = '\0';
}
break;
}
fprintf(stderr, "DEBUG2: prtMarkerSuppliesDescription.1.%d = \"%s\"\n", i,
supplies[i - 1].name);
}
else if (_cupsSNMPIsOIDPrefixed(packet, prtMarkerSuppliesLevel))
{
/*
* Get level...
*/
i = packet->object_name[prtMarkerSuppliesLevelOffset];
if (i < 1 || i > CUPS_MAX_SUPPLIES ||
packet->object_type != CUPS_ASN1_INTEGER)
return;
fprintf(stderr, "DEBUG2: prtMarkerSuppliesLevel.1.%d = %d\n", i,
packet->object_value.integer);
if (i > num_supplies)
num_supplies = i;
supplies[i - 1].level = packet->object_value.integer;
}
else if (_cupsSNMPIsOIDPrefixed(packet, prtMarkerSuppliesMaxCapacity) &&
!(quirks & CUPS_SNMP_CAPACITY))
{
/*
* Get max capacity...
*/
i = packet->object_name[prtMarkerSuppliesMaxCapacityOffset];
if (i < 1 || i > CUPS_MAX_SUPPLIES ||
packet->object_type != CUPS_ASN1_INTEGER)
return;
fprintf(stderr, "DEBUG2: prtMarkerSuppliesMaxCapacity.1.%d = %d\n", i,
packet->object_value.integer);
if (i > num_supplies)
num_supplies = i;
if (supplies[i - 1].max_capacity == 0 &&
packet->object_value.integer > 0)
supplies[i - 1].max_capacity = packet->object_value.integer;
}
else if (_cupsSNMPIsOIDPrefixed(packet, prtMarkerSuppliesClass))
{
/*
* Get marker class...
*/
i = packet->object_name[prtMarkerSuppliesClassOffset];
if (i < 1 || i > CUPS_MAX_SUPPLIES ||
packet->object_type != CUPS_ASN1_INTEGER)
return;
fprintf(stderr, "DEBUG2: prtMarkerSuppliesClass.1.%d = %d\n", i,
packet->object_value.integer);
if (i > num_supplies)
num_supplies = i;
supplies[i - 1].sclass = packet->object_value.integer;
}
else if (_cupsSNMPIsOIDPrefixed(packet, prtMarkerSuppliesType))
{
/*
* Get marker type...
*/
i = packet->object_name[prtMarkerSuppliesTypeOffset];
if (i < 1 || i > CUPS_MAX_SUPPLIES ||
packet->object_type != CUPS_ASN1_INTEGER)
return;
fprintf(stderr, "DEBUG2: prtMarkerSuppliesType.1.%d = %d\n", i,
packet->object_value.integer);
if (i > num_supplies)
num_supplies = i;
supplies[i - 1].type = packet->object_value.integer;
}
else if (_cupsSNMPIsOIDPrefixed(packet, prtMarkerSuppliesSupplyUnit))
{
/*
* Get units for capacity...
*/
i = packet->object_name[prtMarkerSuppliesSupplyUnitOffset];
if (i < 1 || i > CUPS_MAX_SUPPLIES ||
packet->object_type != CUPS_ASN1_INTEGER)
return;
fprintf(stderr, "DEBUG2: prtMarkerSuppliesSupplyUnit.1.%d = %d\n", i,
packet->object_value.integer);
if (i > num_supplies)
num_supplies = i;
if (packet->object_value.integer == CUPS_TC_percent)
supplies[i - 1].max_capacity = 100;
}
}
