minix/commands/aal/system.h

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2005-04-21 16:53:53 +02:00
/*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
/* RCS: $Header$ */
#ifndef __SYSTEM_INCLUDED__
#define __SYSTEM_INCLUDED__
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
#endif __SYSTEM_INCLUDED__