extern errno; #define ENOENT 2 /* no such file, or directory missing */ #define EACCES 13 /* no access allowed */ #define ENOTDIR 20 /* part of pathname is not a directory */ struct inode { char minor, major; int inumber, flags; char nlinks, uid, gid, size0; int size1, addr[8], actime[2], modtime[2]; };