Incorrect mm_type returned when parsing MIME

Hey all,

I've been putting together classes to parse and write MIME, and I've  
been writing unit tests for these things. While writing a unit test  
to make sure that the MIME structure is parsed out correctly, I ran  
into a problem. I have a test file, which has the structure:

multipart/mixed
     text/html
     text/plain

but LibEtPan always parses the structure as:

message
	multipart/mixed
	    text/html
	    text/plain.

Just to verify that I wasn't interpreting the file wrong, I parsed it  
using the Python email utils and it confirmed that the structure  
should be:

multipart/mixed
     text/html
     text/plain.

I've created a small C program that prints out the outer most  
mm_type, and I've attached the test file I've been running on. Am I  
doing something wrong? Why does this small C program return "message"  
when it should be "multipart"?

Thanks in advance,
--

Matt Ronge

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#include <stdio.h>
#include <stdlib.h>
#include <libetpan/libetpan.h>
#include <assert.h>

int main (int argc, char const* argv[]) {
	FILE *fp;
	long len;
	char *buf;
	fp = fopen("/Users/mronge/Projects/kiwi/Frameworks/MailCore/TestData/kiwi-dev/1167196014.6158_0.theronge.com:2,Sab", "r");
	assert(fp != NULL);
	fseek(fp,0,SEEK_END);
	len=ftell(fp);
	fseek(fp,0,SEEK_SET);
	buf=(char *)malloc(len);
	fread(buf,len,1,fp);
	fclose(fp);
	
	struct mailmessage *msg = data_message_init(buf, len);
	int err;
	struct mailmime *dummyMime;
	err = mailmessage_get_bodystructure(msg, &dummyMime);
	assert(err == 0);
	
	switch (msg->msg_mime->mm_type) {
	  case MAILMIME_SINGLE:
	    printf("single part\n");
	    break;
	  case MAILMIME_MULTIPLE:
	    printf("multipart\n");
	    break;
	  case MAILMIME_MESSAGE:
	    printf("message\n");
	    break;
	}
	
	free(buf);	
	return 0;
}