Segmentation fault when I provide invalid unirec-elements.txt

[hynekkar]

When I provide unirec-elements.txt with duplicate element entry, the ipfixcol2 ends up with a segmentation fault error.

To replicate the error, insert one line twice into the unirec-elements.txt config, like:

...
# --- OVPN Information elements ---

OVPN_CONF_LEVEL                 uint8        cesnet:OVPNConfLevel

# --- NTP Information elements  ---
NTP_LEAP                        uint8        cesnet:NTPLeap
NTP_LEAP                        uint8        cesnet:NTPLeap
NTP_VERSION                     uint8        cesnet:NTPVersion 

...