ref: 5ebb1a29d8250027e8b7f2287f3bfa3a6f3d13ac
dir: /sys/src/cmd/disk/sacfs/sacfs.h/
typedef struct SacHeader SacHeader; typedef struct SacDir SacDir; enum { Magic = 0x5acf5, NAMELEN = 28, }; struct SacDir { char name[NAMELEN]; char uid[NAMELEN]; char gid[NAMELEN]; uchar qid[4]; uchar mode[4]; uchar atime[4]; uchar mtime[4]; uchar length[8]; uchar blocks[8]; }; struct SacHeader { uchar magic[4]; uchar length[8]; uchar blocksize[4]; uchar md5[16]; };