typedef struct message message;
struct message {
string *sender;
string *replyaddr;
string *date;
string *body;
int size;
int fd; /* if >= 0, the file the message is stored in */
};
extern void default_from();
extern message *m_new();
extern message *m_read();
extern int m_print();
extern int m_bprint();
extern int m_free();
extern char *thedate();