Endianness issues?

[satta]

We have been noticing issues when running pktanon test cases on Debian GNU/Linux on the s390x platform. See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1012382

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pktanon --- profile-based traffic anonymization
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initializing PktAnon,  configuration = /usr/share/doc/pktanon/examples/profiles/profile.xml
istream: opened file /tmp/autopkgtest-lxc.1djzl_hk/downtmp/build.oQb/src/profiles/sample.pcap
ostream: opened output file ./out.pcap
initialized
error: wrong pcap file version: should be 2.4
error: unsupported link type: 16777216

s390x is big-endian. Could that be an issue here?

[roland-bless]

Yes, I guess that this could be the issue. The code seems to check for a swapped magic number, but fails to continue to also perform conversions for subsequent variables. I have to check with the pcap format, too.

[satta]

I'd be happy to test any patches on our (Debian's) porting boxes for that architecture if it helps.