void* emalloc(int);

void* emalloc(int);
void* erealloc(void*,int);
char* estrdup(char*);
void bufinit(int);
Buf* getbuf(Dev *, uvlong, int, int);
void putbuf(Buf *);
void sync(int);
void pack(Buf *, uchar *);
void unpack(Buf *, uchar *);
Dev* newdev(char *);
ThrData* getthrdata(void);
Fs* initfs(Dev *, int, int);
Dentry* getdent(FLoc *, Buf *);
int getfree(Fs *, uvlong *);
int putfree(Fs *, uvlong);
Chan* chanattach(Fs *, int);
Chan* chanclone(Chan *);
int chanwalk(Chan *, char *);
int chancreat(Chan *, char *, int, int);
int chanopen(Chan *, int mode);
int chanwrite(Chan *, void *, ulong, uvlong);
int chanread(Chan *, void *, ulong, uvlong);
int chanstat(Chan *, Dir *);
int chanwstat(Chan *, Dir *);
int permcheck(Fs *, Dentry *, short, int);
char * uid2name(Fs *, short, char *);
int name2uid(Fs *, char *, short *);
void start9p(char *, char **, int);
int chanclunk(Chan *);
int chanremove(Chan *);
int getblk(Fs *, FLoc *, Buf *, uvlong, uvlong *, int);
void initcons(char *);
void shutdown(void);
int fsdump(Fs *);
int willmodify(Fs *, Loc *, int);
void chbegin(Chan *);
void chend(Chan *);
int newqid(Fs *, uvlong *);
Loc * getloc(Fs *, FLoc, Loc *);
int haveloc(Fs *, uvlong, int, Loc *);
Loc * cloneloc(Fs *, Loc *);
void putloc(Fs *, Loc *, int);
int findentry(Fs *, FLoc *, Buf *, char *, FLoc *, int);
void modified(Chan *, Dentry *);
int trunc(Fs *, FLoc *, Buf *, uvlong);
int dprint(char *fmt, ...);
int delete(Fs *, FLoc *, Buf *);
int chref(Fs *, uvlong, int);
int newentry(Fs *, Loc *, Buf *, char *, FLoc *, int);
int namevalid(char *);
int usersload(Fs *, Chan *);
int userssave(Fs *, Chan *);
int ingroup(Fs *, short, short, int);
void workerinit(void);
void writeusers(Fs *);
void readusers(Fs *);