slirp/sbuf.h

   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(struct sbuf *);
  25 void sbdrop(struct sbuf *, int);
  26 void sbreserve(struct sbuf *, int);
  27 void sbappend(struct socket *, struct mbuf *);
  28 void sbcopy(struct sbuf *, int, int, char *);
  29
  30 #endif