/* RCS: $Header$ */ struct _sys_fildes { int o_fd; /* UNIX filedescriptor */ int o_flags; /* flags for open; 0 if not used */ }; typedef struct _sys_fildes File; extern File _sys_ftab[]; /* flags for sys_open() */ #define OP_READ 01 #define OP_WRITE 02 #define OP_APPEND 04 /* flags for sys_access() */ #define AC_EXIST 00 #define AC_READ 04 #define AC_WRITE 02 #define AC_EXEC 01 /* flags for sys_stop() */ #define S_END 0 #define S_EXIT 1 #define S_ABORT 2 /* standard file decsriptors */ #define STDIN &_sys_ftab[0] #define STDOUT &_sys_ftab[1] #define STDERR &_sys_ftab[2] /* maximum number of open files */ #define SYS_NOPEN 20 /* return value for sys_break */ #define ILL_BREAK ((char *)0) /* system's idea of block */ #define BUFSIZ 1024