Manpages - curl_mime_type.3

curl_mime_type - set a mime part’s content type

#include <curl/curl.h>

CURLcode curl_mime_type(curl_mimepart * */part/,* const char * */mimetype/);*

curl_mime_type(3) sets a mime part’s content type.

part is the part’s handle to assign the content type to.

mimetype points to the null-terminated file mime type string; it may be set to NULL to remove a previously attached mime type.

The mime type string is copied into the part, thus the associated storage may safely be released or reused after call. Setting a part’s type twice is valid: only the value set by the last call is retained.

In the absence of a mime type and if needed by the protocol specifications, a default mime type is determined by the context:

• If set as a custom header, use this value.
  
• application/form-data for an HTTP form post.
  
• If a remote file name is set, the mime type is taken from the file

name extension, or application/octet-stream by default.

• For a multipart part, multipart/mixed.
  
• text/plain in other cases.

   curl_mime *mime;
   curl_mimepart *part;

   /* create a mime handle */
   mime = curl_mime_init(easy);

   /* add a part */
   part = curl_mime_addpart(mime);

   /* get data from this file */
   curl_mime_filedata(part, "image.png");

   /* content-type for this part */
   curl_mime_type(part, "image/png");

   /* set name */
   curl_mime_name(part, "image");

As long as at least one of HTTP, SMTP or IMAP is enabled. Added in 7.56.0.

CURLE_OK or a CURL error code upon failure.

*curl_mime_addpart*(3), *curl_mime_name*(3), *curl_mime_data*(3)