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repo/core/curl/files/curl_mime_subparts.3
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.\" generated by cd2nroff 0.1 from curl_mime_subparts.md
.TH curl_mime_subparts 3 libcurl
.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\(aqs 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(3)\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\(aqs contents multiple times is valid: only the value set by the
last call is retained. It is possible to unassign previous part\(aqs contents by
setting \fIsubparts\fP to NULL.
.SH PROTOCOLS
HTTP, IMAP and SMTP
.SH EXAMPLE
.nf
static char *inline_html = "<title>example</title>";
static char *inline_text = "once upon the time";
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
struct curl_slist *slist;
/* The inline part is an alternative proposing the html and the text
versions of the email. */
curl_mime *alt = curl_mime_init(curl);
curl_mimepart *part;
/* 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(alt);
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)