ref: 1f3c43c01720ed66e7c981d3287eca7dae362ba8
dir: /sys/src/cmd/btc/dat.h/
typedef struct Aux Aux; typedef struct DirEntry DirEntry; enum { TROOT, TBLOCKS, TADDR, TADDRSUB, TADDRTX, TADDRBALANCE, }; struct DirEntry { char *name; Qid qid; int par; char *(*walk)(Fid *, char *, Qid *); char *(*str)(DirEntry *, Aux *); void (*write)(Req *); int sub[20]; }; struct Aux { char *addr; char *str; };