int main(int argc, char ** argv)
{
struct mailmime * msg_mime;
struct mailmime * mime;
struct mailmime * submime;
struct mailimf_fields * fields;
int col;
msg_mime = mailmime_new_message_data(NULL);
fields = build_fields();
mailmime_set_imf_fields(msg_mime, fields);
mime = get_multipart_mixed(NULL);
submime = get_plain_text_part();
mailmime_smart_add_part(mime, submime);
submime = get_sample_file_part();
mailmime_smart_add_part(mime, submime);
mailmime_add_part(msg_mime, mime);
col = 0;
mailmime_write_file(stdout, &col, mime);
mailmime_free(msg_mime);
exit(0);
}
int mailmime_smart_add_part(struct mailmime * mime,
struct mailmime * mime_sub)
{
struct mailmime * saved_sub;
struct mailmime * mp;
int res;
int r;
switch (mime->mm_type) {
case MAILMIME_SINGLE:
res = MAILIMF_ERROR_INVAL;
goto err;
case MAILMIME_MULTIPLE:
r = mailmime_add_part(mime, mime_sub);
if (r != MAILIMF_NO_ERROR) {
res = MAILIMF_ERROR_MEMORY;
goto err;
}
return MAILIMF_NO_ERROR;
}
/* MAILMIME_MESSAGE */
if (mime->mm_data.mm_message.mm_msg_mime == NULL) {
/* there is no subpart, we can simply attach it */
r = mailmime_add_part(mime, mime_sub);
if (r != MAILIMF_NO_ERROR) {
res = MAILIMF_ERROR_MEMORY;
goto err;
}
return MAILIMF_NO_ERROR;
}
if (mime->mm_data.mm_message.mm_msg_mime->mm_type == MAILMIME_MULTIPLE) {
/* in case the subpart is multipart, simply attach it to the subpart */
return mailmime_add_part(mime->mm_data.mm_message.mm_msg_mime, mime_sub);
}
/* we save the current subpart, ... */
saved_sub = mime->mm_data.mm_message.mm_msg_mime;
/* create a multipart */
mp = mailmime_multiple_new("multipart/mixed");
if (mp == NULL) {
res = MAILIMF_ERROR_MEMORY;
goto err;
}
/* detach the saved subpart from the parent */
mailmime_remove_part(saved_sub);
/* the created multipart is the new child of the parent */
r = mailmime_add_part(mime, mp);
if (r != MAILIMF_NO_ERROR) {
res = MAILIMF_ERROR_MEMORY;
goto free_mp;
}
/* then, attach the saved subpart and ... */
r = mailmime_add_part(mp, saved_sub);
if (r != MAILIMF_NO_ERROR) {
res = MAILIMF_ERROR_MEMORY;
goto free_saved_sub;
}
/* the given part to the parent */
r = mailmime_add_part(mp, mime_sub);
if (r != MAILIMF_NO_ERROR) {
res = MAILIMF_ERROR_MEMORY;
goto free_saved_sub;
}
return MAILIMF_NO_ERROR;
free_mp:
mailmime_free(mp);
free_saved_sub:
mailmime_free(saved_sub);
err:
return res;
}
