CURLOPT_SSH_KNOWNHOSTS(3)  curl_easy_setopt options  CURLOPT_SSH_KNOWNHOSTS(3)

NAME
       CURLOPT_SSH_KNOWNHOSTS - file name holding the SSH known hosts

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_KNOWNHOSTS, char
       *fname);

DESCRIPTION
       Pass a pointer to a null-terminated string holding the file name of the
       known_host file to use.  The known_hosts file should use the OpenSSH
       file format as supported by libssh2. If this file is specified, libcurl
       will only accept connections with hosts that are known and present in
       that file, with a matching public key. Use _SSH_KEYFUNCTION&section=3">CURLOPT_SSH_KEYFUNCTION(3)
       to alter the default behavior on host and key (mis)matching.

       The application does not have to keep the string around after setting
       this option.

DEFAULT
       NULL

PROTOCOLS
       SFTP and SCP

EXAMPLE
       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "sftp://example.com/file");
         curl_easy_setopt(curl, CURLOPT_SSH_KNOWNHOSTS,
                          "/home/clarkkent/.ssh/known_hosts");
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }

AVAILABILITY
       Added in 7.19.6

RETURN VALUE
       Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if
       not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO
       CURLOPT_SSH_AUTH_TYPES(3), CURLOPT_SSH_HOST_PUBLIC_KEY_MD5(3),

libcurl 7.77.0                 November 4, 2020      CURLOPT_SSH_KNOWNHOSTS(3)