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        !            23: .TH CURLOPT_FTPSSLAUTH 3 "May 31, 2017" "libcurl 7.70.0" "curl_easy_setopt options"
        !            24: 
        !            25: .SH NAME
        !            26: CURLOPT_FTPSSLAUTH \- set order in which to attempt TLS vs SSL when using FTP
        !            27: .SH SYNOPSIS
        !            28: #include <curl/curl.h>
        !            29: 
        !            30: CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTPSSLAUTH, long order);
        !            31: .SH DESCRIPTION
        !            32: Pass a long using one of the values from below, to alter how libcurl issues
        !            33: \&"AUTH TLS" or "AUTH SSL" when FTP over SSL is activated. This is only
        !            34: interesting if \fICURLOPT_USE_SSL(3)\fP is also set.
        !            35: 
        !            36: Possible \fIorder\fP values:
        !            37: .IP CURLFTPAUTH_DEFAULT
        !            38: Allow libcurl to decide.
        !            39: .IP CURLFTPAUTH_SSL
        !            40: Try "AUTH SSL" first, and only if that fails try "AUTH TLS".
        !            41: .IP CURLFTPAUTH_TLS
        !            42: Try "AUTH TLS" first, and only if that fails try "AUTH SSL".
        !            43: .SH DEFAULT
        !            44: CURLFTPAUTH_DEFAULT
        !            45: .SH PROTOCOLS
        !            46: FTP
        !            47: .SH EXAMPLE
        !            48: .nf
        !            49: CURL *curl = curl_easy_init();
        !            50: if(curl) {
        !            51:   curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/file.txt");
        !            52:   curl_easy_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_TRY);
        !            53:   /* funny server, ask for SSL before TLS */
        !            54:   curl_easy_setopt(curl, CURLOPT_FTPSSLAUTH, CURLFTPAUTH_SSL);
        !            55:   ret = curl_easy_perform(curl);
        !            56:   curl_easy_cleanup(curl);
        !            57: }
        !            58: .fi
        !            59: .SH AVAILABILITY
        !            60: Added in 7.12.2
        !            61: .SH RETURN VALUE
        !            62: Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
        !            63: .SH "SEE ALSO"
        !            64: .BR CURLOPT_USE_SSL "(3), " CURLOPT_FTP_SSL_CCC "(3), "