slirp/src/sbuf.h

   1 /* SPDX-License-Identifier: BSD-3-Clause */
   2 /*
   3  * Copyright (c) 1995 Danny Gasparovski.
   4  */
   5
   6 #ifndef SBUF_H
   7 #define SBUF_H
   8
   9 #define sbspace(sb) ((sb)->sb_datalen - (sb)->sb_cc)
  10
  11 struct sbuf {
  12         uint32_t sb_cc;         /* actual chars in buffer */
  13         uint32_t sb_datalen;    /* Length of data  */
  14         char    *sb_wptr;       /* write pointer. points to where the next
  15                                  * bytes should be written in the sbuf */
  16         char    *sb_rptr;       /* read pointer. points to where the next
  17                                  * byte should be read from the sbuf */
  18         char    *sb_data;       /* Actual data */
  19 };
  20
  21 void sbfree(struct sbuf *);
  22 bool sbdrop(struct sbuf *, int);
  23 void sbreserve(struct sbuf *, int);
  24 void sbappend(struct socket *, struct mbuf *);
  25 void sbcopy(struct sbuf *, int, int, char *);
  26
  27 #endif