system.h

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/*
 * (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: /opt/proj/minix/cvsroot/src/commands/aal/system.h,v 1.1.1.1 2005/04/21 14:53:58 beng Exp $ */
#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__

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