for libcurl how to proceed. The callback will only be called if
\fICURLOPT_SSH_KNOWNHOSTS\fP is also set.
+.nf
+int curl_sshkeycallback (CURL *easy, /* easy handle */
+ const struct curl_khkey *knownkey, /* known */
+ const struct curl_khkey *foundkey, /* found */
+ enum curl_khmatch, /* libcurl's view on the keys */
+ void *clientp);
+.fi
+
The curl_sshkeycallback function gets passed the CURL handle, the key from the
known_hosts file, the key from the remote site, info from libcurl on the
matching status and a custom pointer (set with \fICURLOPT_SSH_KEYDATA\fP). It