.\" generated by cd2nroff 0.1 from CURLOPT_FTPSSLAUTH.md
.TH CURLOPT_FTPSSLAUTH 3 "2024-11-18" libcurl
.SH NAME
CURLOPT_FTPSSLAUTH \- order in which to attempt TLS vs SSL
.SH SYNOPSIS
.nf
#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTPSSLAUTH, long order);
.fi
.SH 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 \fICURLOPT_USE_SSL(3)\fP is also set.

Possible \fIorder\fP values:
.IP CURLFTPAUTH_DEFAULT
Allow libcurl to decide.
.IP CURLFTPAUTH_SSL
Try "AUTH SSL" first, and only if that fails try "AUTH TLS".
.IP CURLFTPAUTH_TLS
Try "AUTH TLS" first, and only if that fails try "AUTH SSL".
.SH DEFAULT
CURLFTPAUTH_DEFAULT
.SH PROTOCOLS
This functionality affects ftp only
.SH EXAMPLE
.nf
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);
  }
}
.fi
.SH AVAILABILITY
Added in curl 7.12.2
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH SEE ALSO
.BR CURLOPT_FTP_SSL_CCC (3),
.BR CURLOPT_USE_SSL (3)