1 /*
2  * Copyright (c) 1995 Danny Gasparovski.
3  *
4  * Please read the file COPYRIGHT for the
5  * terms and conditions of the copyright.
6  */
7 
8 #ifndef _SBUF_H_
9 #define _SBUF_H_
10 
11 #define sbflush(sb) sbdrop((sb),(sb)->sb_cc)
12 #define sbspace(sb) ((sb)->sb_datalen - (sb)->sb_cc)
13 
14 struct sbuf {
15 	u_int	sb_cc;		/* actual chars in buffer */
16 	u_int	sb_datalen;	/* Length of data  */
17 	char	*sb_wptr;	/* write pointer. points to where the next
18 				 * bytes should be written in the sbuf */
19 	char	*sb_rptr;	/* read pointer. points to where the next
20 				 * byte should be read from the sbuf */
21 	char	*sb_data;	/* Actual data */
22 };
23 
24 void sbfree _P((struct sbuf *));
25 void sbdrop _P((struct sbuf *, int));
26 void sbreserve _P((struct sbuf *, int));
27 void sbappend _P((struct socket *, struct mbuf *));
28 void sbappendsb _P((struct sbuf *, struct mbuf *));
29 void sbcopy _P((struct sbuf *, int, int, char *));
30 
31 #endif
32