CURLOPT_SSH_AUTH_TYPES

Section: curl_easy_setopt options (3)
Updated: November 04, 2020
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NAME

CURLOPT_SSH_AUTH_TYPES - set desired auth types for SFTP and SCP

SYNOPSIS

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_AUTH_TYPES, long bitmask);

DESCRIPTION

Pass a long set to a bitmask consisting of one or more of CURLSSH_AUTH_PUBLICKEY, CURLSSH_AUTH_PASSWORD, CURLSSH_AUTH_HOST, CURLSSH_AUTH_KEYBOARD and CURLSSH_AUTH_AGENT.

Set CURLSSH_AUTH_ANY to let libcurl pick a suitable one. Currently CURLSSH_AUTH_HOST has no effect. If CURLSSH_AUTH_AGENT is used, libcurl attempts to connect to ssh-agent or pageant and let the agent attempt the authentication.

DEFAULT

None

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_AUTH_TYPES,
                   CURLSSH_AUTH_PUBLICKEY | CURLSSH_AUTH_KEYBOARD);
  ret = curl_easy_perform(curl);
  curl_easy_cleanup(curl);
}

AVAILABILITY

CURLSSH_AUTH_HOST was added in 7.16.1, CURLSSH_AUTH_AGENT was added in 7.28.0

RETURN VALUE

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.