CURLOPT_FTPSSLAUTH3
Order in which to attempt tls vs ssl
Usage
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTPSSLAUTH, long order);
Overview
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
Examples
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
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, (long)CURLFTPAUTH_SSL);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
Return value
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
Releases
79 releases since OS X 10.10; the text changed 14 times.