.\" ************************************************************************** .\" * _ _ ____ _ .\" * Project ___| | | | _ \| | .\" * / __| | | | |_) | | .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * .\" * Copyright (C) Daniel Stenberg, , et al. .\" * .\" * This software is licensed as described in the file COPYING, which .\" * you should have received as part of this distribution. The terms .\" * are also available at https://curl.se/docs/copyright.html. .\" * .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell .\" * copies of the Software, and permit persons to whom the Software is .\" * furnished to do so, under the terms of the COPYING file. .\" * .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY .\" * KIND, either express or implied. .\" * .\" * SPDX-License-Identifier: curl .\" * .\" ************************************************************************** .\" .TH CURLOPT_FTPSSLAUTH 3 "19 Jun 2014" libcurl libcurl .SH NAME CURLOPT_FTPSSLAUTH \- order in which to attempt TLS vs SSL .SH SYNOPSIS .nf #include 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 FTP .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 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_USE_SSL (3), .BR CURLOPT_FTP_SSL_CCC (3)