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curl_mime_init.3
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.\" **************************************************************************
.\" * _ _ ____ _
.\" * Project ___| | | | _ \| |
.\" * / __| | | | |_) | |
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2022, Daniel Stenberg, <[email protected]>, 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 curl_mime_init 3 "22 August 2017" "libcurl 7.56.0" "libcurl Manual"
.SH NAME
curl_mime_init - create a mime handle
.SH SYNOPSIS
.nf
#include <curl/curl.h>
curl_mime *curl_mime_init(CURL *easy_handle);
.fi
.SH DESCRIPTION
\fIcurl_mime_init(3)\fP creates a handle to a new empty mime structure,
This mime structure can be subsequently filled using the mime API, then
attached to some easy handle using option \fICURLOPT_MIMEPOST(3)\fP within
a \fIcurl_easy_setopt(3)\fP call or added as a multipart in another mime
handle's part using \fIcurl_mime_subparts(3)\fP.
\fIeasy_handle\fP is used for part separator randomization and error
reporting. It does not need to be the final target handle.
Using a mime handle is the recommended way to post an HTTP form, format and
send a multi-part email with SMTP or upload such an email to an IMAP server.
.SH EXAMPLE
.nf
CURL *easy = curl_easy_init();
curl_mime *mime;
curl_mimepart *part;
/* Build an HTTP form with a single field named "data", */
mime = curl_mime_init(easy);
part = curl_mime_addpart(mime);
curl_mime_data(part, "This is the field data", CURL_ZERO_TERMINATED);
curl_mime_name(part, "data");
/* Post and send it. */
curl_easy_setopt(easy, CURLOPT_MIMEPOST, mime);
curl_easy_setopt(easy, CURLOPT_URL, "https://example.com");
curl_easy_perform(easy);
/* Clean-up. */
curl_easy_cleanup(easy);
curl_mime_free(mime);
.SH AVAILABILITY
As long as at least one of HTTP, SMTP or IMAP is enabled. Added in 7.56.0.
.SH RETURN VALUE
A mime struct handle, or NULL upon failure.
.SH "SEE ALSO"
.BR curl_mime_addpart "(3),"
.BR curl_mime_subparts "(3),"
.BR curl_mime_free "(3),"
.BR CURLOPT_MIMEPOST "(3)"