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authorDavid Gibson <david@gibson.dropbear.id.au>2022-11-04 14:10:35 +1100
committerStefano Brivio <sbrivio@redhat.com>2022-11-04 12:04:24 +0100
commit7c7b68dbe02874324e4fcda9c13b9e8d9a8192cf (patch)
tree2cf45b6d9019e785f3c1c20bfee84576c46501a4 /test/lib
parentdd3470d9a92bd2fc83b3afd5ff9490b73de6a58c (diff)
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Use typing to reduce chances of IPv4 endianness errors
We recently corrected some errors handling the endianness of IPv4 addresses. These are very easy errors to make since although we mostly store them in network endianness, we sometimes need to manipulate them in host endianness. To reduce the chances of making such mistakes again, change to always using a (struct in_addr) instead of a bare in_addr_t or uint32_t to store network endian addresses. This makes it harder to accidentally do arithmetic or comparisons on such addresses as if they were host endian. We introduce a number of IN4_IS_ADDR_*() helpers to make it easier to directly work with struct in_addr values. This has the additional benefit of making the IPv4 and IPv6 paths more visually similar. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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