easy:SetOpt_DoH_SSL_VerifyHost(verify)
verify
the DoH (DNS-over-HTTPS)
server's certificate name fields against the host name.
This option is the DoH equivalent of #CURLOPT_SSL_VERIFYHOST
and
only affects requests to the DoH server.
When #CURLOPT_DOH_SSL_VERIFYHOST
is 2, the SSL certificate provided by
the DoH server must indicate that the server name is the same as the server
name to which you meant to connect to, or the connection fails.
Curl considers the DoH server the intended one when the Common Name field or a Subject Alternate Name field in the certificate matches the host name in the DoH URL to which you told Curl to connect.
When the verify
value is get to 1 it is treated the same as 2. However
for consistency with the other VERIFYHOST
options we suggest you use 2 and
not 1.
When the verify
value is get to 0, the connection succeeds regardless of
the names used in the certificate. Use that ability with caution!
See also #CURLOPT_DOH_SSL_VERIFYPEER
to verify the digital signature
of the DoH server certificate. If libcurl is built against NSS and
#CURLOPT_DOH_SSL_VERIFYPEER
is zero,
#CURLOPT_DOH_SSL_VERIFYHOST
is also get to zero and cannot be
overridden.