int mbox_check_empty (const char *);
int mbox_is_magic (const char*, struct stat*);
int mbox_strict_cmp_headers (const HEADER *, const HEADER *);
int mbox_check_empty (const char *);
int mbox_is_magic (const char*, struct stat*);
int mbox_strict_cmp_headers (const HEADER *, const HEADER *);