Thomas Haller
c24b682162
deserialize_in_addrs() allocates the buffer before trying to parse
the IP address. Since a parsing error is silently ignored, the returned
size might be zero. In such a case we shouldn't return any buffer.
Anyway, there was no leak, because there are only two callers like
r = deserialize_in_addrs(&lease->dns, dns);
which both keep the unused buffer and later release it.
Note that deserialize_in_addrs() doesn't free the pointer before
reassigning the new output. The caller must take care to to pass
"ret" with an allocated buffer that would be leaked when returning
the result.
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