clear the c->buffer in the comm_point_send_reply does resolve the "can't fit qbuffer in c->buffer" issue, but it breaks the mesh reply list function that need to reuse the answer. because the c->buffer is cleared in the comm_point_send_reply, it cannot be resued again. it means that it is not inappropriate to clear c->buffer in the comm_point_send_reply.
After some investigation, i found it is appropriate to clear c->buffer before use in the http2_query_read_done.
Unbound is a validating, recursive, caching DNS resolver. It is designed to be
fast and lean and incorporates modern features based on open standards. If you
have any feedback, we would love to hear from you. Don’t hesitate to
create an issue on Github
or post a message on the Unbound mailing list.
You can learn more about Unbound by reading our
documentation.
Compiling
Make sure you have the C toolchain, OpenSSL and its include files, and libexpat
installed. Unbound can be compiled and installed using:
./configure && make && make install
You can use libevent if you want. libevent is useful when using many (10000)
outgoing ports. By default max 256 ports are opened at the same time and the
builtin alternative is equally capable and a little faster.
Use the --with-libevent=dir configure option to compile Unbound with libevent
support.
Unbound configuration
All of Unbound's configuration options are described in the man pages, which
will be installed and are available on the Unbound
documentation page.
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