ref: d24610fe3813b800ee436dfe5a1121e39721c8f4
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; };