Return to mbuf.h CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / mpd / src

mpd 5.8

    1: 
    2: /*
    3:  * mbuf.c
    4:  *
    5:  * Written by Toshiharu OHNO <tony-o@iij.ad.jp>
    6:  * Copyright (c) 1993, Internet Initiative Japan, Inc. All rights reserved.
    7:  * See ``COPYRIGHT.iij''
    8:  * 
    9:  * Rewritten by Archie Cobbs <archie@freebsd.org>
   10:  * Copyright (c) 1995-1999 Whistle Communications, Inc. All rights reserved.
   11:  * See ``COPYRIGHT.whistle''
   12:  */
   13: 
   14: #ifndef _MBUF_H_
   15: #define _MBUF_H_
   16: 
   17: /*
   18:  * DEFINITIONS
   19:  */
   20: 
   21:   struct mpdmbuf {
   22:     int			size;		/* size allocated */
   23:     int			offset;		/* offset to start position */
   24:     int			cnt;		/* available byte count in buffer */
   25:   };
   26: 
   27:   typedef struct mpdmbuf	*Mbuf;
   28: 
   29:   /* Macros */
   30:   #define MBDATAU(bp)	((u_char *)(bp) + sizeof(struct mpdmbuf) + (bp)->offset)
   31:   #define MBDATA(bp)	((bp) ? MBDATAU(bp) : NULL)
   32:   #define MBLEN(bp)	((size_t)((bp) ? (bp)->cnt : 0))
   33:   #define MBSPACE(bp)	((bp) ? (bp)->size - (bp)->offset : 0)
   34: 
   35:   /* Types of allocated memory */
   36:   #define MB_AUTH	"AUTH"
   37:   #define MB_CONS	"CONSOLE"
   38:   #define MB_WEB	"WEB"
   39:   #define MB_IFACE	"IFACE"
   40:   #define MB_BUND	"BUND"
   41:   #define MB_REP	"REP"
   42:   #define MB_LINK	"LINK"
   43:   #define MB_CHAT	"CHAT"
   44:   #define MB_CMD	"CMD"
   45:   #define MB_CMDL	"CMDL"
   46:   #define MB_COMP	"COMP"
   47:   #define MB_CRYPT	"CRYPT"
   48:   #define MB_ECHO	"ECHO"
   49:   #define MB_EVENT	"EVENT"
   50:   #define MB_FSM	"FSM"
   51:   #define MB_LOG	"LOG"
   52:   #define MB_MP		"MP"
   53:   #define MB_MBUF	"MBUF"
   54:   #define MB_PHYS	"PHYS"
   55:   #define MB_PPTP	"PPTP"
   56:   #define MB_RADIUS	"RADIUS"
   57:   #define MB_RADSRV	"RADSRV"
   58:   #define MB_ACL	"ACL_BPF"
   59:   #define MB_IPFW	"ACL_IPFW"
   60:   #define MB_UTIL	"UTIL"
   61:   #define MB_VJCOMP	"VJCOMP"
   62:   #define MB_IPPOOL	"IPPOOL"
   63: 
   64: #ifndef __malloc_like
   65: #define __malloc_like
   66: #endif
   67: 
   68: /*
   69:  * FUNCTIONS
   70:  */
   71: 
   72: /* Replacements for malloc() & free() */
   73: 
   74:   extern void	*Malloc(const char *type, size_t size) __malloc_like;
   75:   extern void	*Mdup(const char *type, const void *src, size_t size) __malloc_like;
   76:   extern void	*Mstrdup(const char *type, const void *src) __malloc_like;
   77:   extern void	Freee(void *ptr);
   78: 
   79: /* Mbuf manipulation */
   80: 
   81:   extern Mbuf	mballoc(int size) __malloc_like;
   82:   extern void	mbfree(Mbuf bp);
   83:   extern Mbuf	mbread(Mbuf bp, void *ptr, int cnt);
   84:   extern int	mbcopy(Mbuf bp, int offset, void *buf, int cnt);
   85:   extern Mbuf	mbcopyback(Mbuf bp, int offset, const void *buf, int cnt);
   86:   extern Mbuf	mbtrunc(Mbuf bp, int max);
   87:   extern Mbuf	mbadj(Mbuf bp, int cnt);
   88:   extern Mbuf	mbsplit(Mbuf bp, int cnt);
   89: 
   90: /* Etc */
   91: 
   92:   extern int	MemStat(Context ctx, int ac, char *av[], void *arg);
   93:   extern void	DumpBp(Mbuf bp);
   94: 
   95: #endif
   96: