CURLOPT_FTPSSLAUTH(3) curl_easy_setopt options CURLOPT_FTPSSLAUTH(3)
NAME
CURLOPT_FTPSSLAUTH - order in which to attempt TLS vs SSL
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTPSSLAUTH, long order);
DESCRIPTION
Pass a long using one of the values from below, to alter how libcurl
issues "AUTH TLS" or "AUTH SSL" when FTP over SSL is activated. This is
only interesting if CURLOPT_USE_SSL(3) is also set.
Possible order values:
CURLFTPAUTH_DEFAULT
Allow libcurl to decide.
CURLFTPAUTH_SSL
Try "AUTH SSL" first, and only if that fails try "AUTH TLS".
CURLFTPAUTH_TLS
Try "AUTH TLS" first, and only if that fails try "AUTH SSL".
DEFAULT
CURLFTPAUTH_DEFAULT
PROTOCOLS
FTP
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/file.txt");
curl_easy_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_TRY);
/* funny server, ask for SSL before TLS */
curl_easy_setopt(curl, CURLOPT_FTPSSLAUTH, CURLFTPAUTH_SSL);
ret = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
AVAILABILITY
Added in 7.12.2
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
if not.
SEE ALSO
CURLOPT_USE_SSL(3), CURLOPT_FTP_SSL_CCC(3),
libcurl 7.81.0 November 26, 2021 CURLOPT_FTPSSLAUTH(3)
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