Mknod create a directory #include <modes.h> mknod char *fname int desc os9 I$MAKDIR This call may be used to create a new directory. "Fname" should point to a string containing the desired name of the directory. "Desc" is a descriptor specifying the desired mode (file type) and permissions of the new file. The include file defines the possible values for "desc" as follows: #define S_IREAD 0x01 /* owner read */ #define S_IWRITE 0x02 /* owner write */ #define S_IEXEC 0x04 /* owner execute */ #define S_IOREAD 0x08 /* public read */ #define S_IOWRITE 0x10 /* public write */ #define S_IOEXEC 0x20 /* public execute */ #define S_ISHARE 0x40 /* sharable */ Zero is returned if the directory has been successfully made; -1 if the file already exists. OS-9 command "makdir"