int crlf);
int CtdlCopyMsgToRoom(long msgnum, char *dest);
int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void);
-int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf);
+int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf, size_t n);
void CtdlSetSeen(long target_msgnum, int target_setting);
+struct recptypes *validate_recipients(char *recipients);