curl_mime_addpart - append a new empty part to a mime structure

Added in curl 7.56.0

curl_mime_addpart(3) creates and appends a new empty part to the given mime structure and returns a handle to it. The returned part handle can subsequently be populated using functions from the mime API. mime is the handle of the mime structure in which the new part must be appended.

int main(void) { curl_mime *mime; curl_mimepart *part; CURL *curl = curl_easy_init(); if(curl) { /* create a mime handle */ mime = curl_mime_init(curl); /* add a part */ part = curl_mime_addpart(mime); /* continue and set name + data to the part */ curl_mime_data(part, "This is the field data", CURL_ZERO_TERMINATED); curl_mime_name(part, "data"); } }

curl_mime_addpart - append a new empty part to a mime structure

This functionality affects http, imap and smtp

A mime part structure handle, or NULL upon failure.

curl_mime_data(3), curl_mime_data_cb(3), curl_mime_encoder(3), curl_mime_filedata(3), curl_mime_filename(3), curl_mime_headers(3), curl_mime_init(3), curl_mime_name(3), curl_mime_subparts(3), curl_mime_type(3) libcurl 2025-06-16 curl_mime_addpart(3)

#include <curl/curl.h> curl_mimepart *curl_mime_addpart(curl_mime *mime);