/* alloc.c */
void* emalloc(ulong sz);
Block* newblock(ulong length, uchar *data);

/* audio.c */
Audio* audioinit(char *path);
void audiowrite(ulong n, uchar *p);

/* client.c */
Client* clientinit(char *me, char *them);
void clientrun(Client *c, Audio *a);

/* timer.c */
Channel* timerchan(int ms, char *tag);