prohibitedgetnetbynameCalled
ftp://ftp.de.debian.org/debian/pool/main/i/iptables/iptables_1.8.13.orig.tar.xz
iptables-1.8.13/libxtables/xtables.c:1664:13: portability: Non reentrant function 'getnetbyname' called. For threadsafe applications it is recommended to use the reentrant replacement function 'getnetbyname_r'. [prohibitedgetnetbynameCalled]