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curl_mime_subparts.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_subparts 3 "22 August 2017" "libcurl 7.56.0" "libcurl Manual"
.SH NAME
curl_mime_subparts - set sub-parts of a multipart mime part
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_mime_subparts(curl_mimepart *part, curl_mime *subparts);
.fi
.SH DESCRIPTION
\fIcurl_mime_subparts(3)\fP sets a multipart mime part's content from a mime
structure.
\fIpart\fP is a handle to the multipart part.
\fIsubparts\fP is a mime structure handle holding the sub-parts. After
\fIcurl_mime_subparts\fP succeeds, the mime structure handle belongs to the
multipart part and must not be freed explicitly. It may however be updated by
subsequent calls to mime API functions.
Setting a part's contents multiple times is valid: only the value set by the
last call is retained. It is possible to unassign previous part's contents by
setting \fIsubparts\fP to NULL.
.SH EXAMPLE
.nf
/* The inline part is an alternative proposing the html and the text
versions of the email. */
alt = curl_mime_init(curl);
/* HTML message. */
part = curl_mime_addpart(alt);
curl_mime_data(part, inline_html, CURL_ZERO_TERMINATED);
curl_mime_type(part, "text/html");
/* Text message. */
part = curl_mime_addpart(alt);
curl_mime_data(part, inline_text, CURL_ZERO_TERMINATED);
/* Create the inline part. */
part = curl_mime_addpart(mime);
curl_mime_subparts(part, alt);
curl_mime_type(part, "multipart/alternative");
slist = curl_slist_append(NULL, "Content-Disposition: inline");
curl_mime_headers(part, slist, 1);
.fi
.SH AVAILABILITY
As long as at least one of HTTP, SMTP or IMAP is enabled. Added in 7.56.0.
.SH RETURN VALUE
CURLE_OK or a CURL error code upon failure.
.SH "SEE ALSO"
.BR curl_mime_addpart "(3),"
.BR curl_mime_init "(3)"