convert floating point in little endian order

[jvgenderen]

hi ..
i need to convert tis value "7D 99 5A 41" in to zabbix that i kan work with it ..
it is the value of the power supply of an transmitter ..
the voltage is 13.6volt ..

a friend told me that it is an floating point value in litle-endian order ..

any help ;-)

grt Joost

[jan.garaj]

Python black box magic code :-):

>>> import binascii, struct
>>> little_endian_string="7D 99 5A 41"                                             
>>> float_value = struct.unpack('<f',binascii.unhexlify(big_endian_string.replace(' ','')))[0]
>>> print "Little Endian String: %s, Float: %s" % (little_endian_string, float_value)  
Little Endian String: 7D 99 5A 41, Float: 13.6624727249

[jvgenderen]

hi jan ..
thanks for the formule ;-)

but my knowledge is a bit limited to implement this ..

the value is grabbed by means of snmp-read but what is next ??


grt Joost .

[jan.garaj]

You can't convert/parse metric data on Zabbix server -> server must have float value already. Where do you convert it it's up to you. You can create some script, which will convert it and send it to zabbix-server by zabbix server (IMHO the best solution for you). You can modify your device, SNMP daemon, ....