buf_read
void buf_read(struct buf *, int);
buf_read(&playbuf, playfd);
buf_read(&playbuf, playfd);
struct buf_read *rbuf;
static ssize_t session_get_pdu(struct buf_read *, char **);
session_get_pdu(struct buf_read *r, char **b)
if ((tcp->rbuf = calloc(1, sizeof(struct buf_read))) == NULL)