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use "systypes"

pkg sys =
	type pid	= int	/* process id */
	type scno	= int64	/*syscall*/
	type fdopt	= int64	/* fd options */
	type fd		= int32	/* fd */
	type whence	= uint64	/* seek from whence */
	type mprot	= int64	/* memory protection */
	type mopt	= int64	/* memory mapping options */
	type socktype	= int64	/* socket type */
	type sockopt	= int64	/* socket option */
	type sockproto	= int64	/* socket protocol */
	type sockfam	= uint8	/* socket family */
	type filemode	= uint32
	type filetype	= uint8
	type fcntlcmd	= int64
	type umtxop	= int32
	type signo	= int32
	type sigflags	= int32

	type clock = union
		`Clockrealtime
		`Clockvirtual
		`Clockprof
		`Clocktmonotonic
	;;

	type pollfd = struct
		fd	: fd
		events	: uint16
		revents	: uint16
	;;

	type sigset = struct
		bits	: uint32[4]
	;;

	type sigaction = struct
		handler	: byte#	/* code pointer */
		flags	: sigflags
		mask	: sigset
	;;

	type waitstatus = union
		`Waitfail int32
		`Waitexit int32
		`Waitsig  int32
		`Waitstop int32
	;;

	type timespec = struct
		sec	: int64
		nsec	: int64
	;;

	type timeval = struct
		sec	: int64
		usec	: int64
	;;

	type rusage = struct
		utime	: timeval /* user time */
		stime	: timeval /* system time */
		maxrss	: uint64 /* max resident set size*/
		ixrss	: uint64 /* shared text size */
		idrss	: uint64 /* unshared data size */
		isrss	: uint64 /* unshared stack size */
		minflt	: uint64 /* page reclaims */
		majflt	: uint64 /* page faults */
		nswap	: uint64 /* swaps */
		inblock	: uint64 /* block input ops */
		oublock	: uint64 /* block output ops */
		msgsnd	: uint64 /* messages sent */	
		msgrcv	: uint64 /* messages received */
		nsignals : uint64 /* signals received */
		nvcsw	: uint64 /* voluntary context switches */
		nivcsw	: uint64 /* involuntary context switches */
	;;

	type statbuf = struct
		dev	: uint64	/* inode's device */
		mode	: filemode	/* inode protection mode */
		ino	: uint64	/* inode's number */
		nlink	: uint32	/* number of hard links */
		uid	: uint32	/* user ID of the file's owner */
		gid	: uint32	/* group ID of the file's group */
		rdev	: uint64	/* device type */
		atime	: timespec	/* time of last access */
		mtime	: timespec	/* time of last data modification */
		ctime	: timespec	/* time of last file status change */
		btime	: timespec	/* time of creation */
		size	: uint64	/* file size in bytes */
		blocks	: uint64	/* blocks allocated for file */
		blksize	: uint32	/* optimal blocksize for I/O */
		flags	: uint32	/* user defined flags for file */
		gen	: uint32	/* file generation number */
		spare	: uint32[2]
	;;

	type utsname = struct
		system	: byte[256]
		node : byte[256] 
		release : byte[256]
		version : byte[256]
		machine : byte[256]
	;;

	type sockaddr = struct
		len	: byte
		fam	: sockfam
		data	: byte[14] /* what is the *actual* length? */
	;;

	type sockaddr_in = struct
		len	: byte
		fam	: sockfam
		port	: uint16
		addr	: byte[4]
		zero	: byte[8]
	;;

	type sockaddr_in6 = struct
		len	: byte
		fam	: sockfam
		port	: uint16
		flow	: uint32
		addr	: byte[16]
		scope	: uint32
	;;

	type sockaddr_un = struct
		len	: uint8
		fam	: sockfam
		path	: byte[104]
	;;

	type sockaddr_storage = struct
		len	: byte
		fam	: sockfam
		__pad1  : byte[6]
		__align : int64
		__pad2  : byte[112]
	;;	
	
	type dirent = struct
		fileno	: uint32
		reclen	: uint16
		ftype	: filetype
		namelen	: uint8
		name	: byte[256]	
	;;	

	type rtprio = struct
		rttype	: uint16
		rtprio	: uint16
	;;

	type thrparam = struct
		startfn	: void#	/* pointer to code for thread entry */
		arg	: void#	/* pointer argument for thread entry */
		stkbase	: byte#	/* stack base address */
		stksz	: size	/* size of stack */
		tlsbase	: byte#	/* base of thread local storage */
		tlssz	: size	/* size of tls */
		tid	: uint64#	/* place to store new tid */
		ptid	: uint64#	/* place to store parent tid */
		flags	: int32	/* flags for the thread */
		rtp	: rtprio#	/* realtime priority */
		spare	: void#[3]	/* padding */
	;;

	type iovec = struct
		base	: byte#
		len	: uint64
	;;

	/* open options */
	const Ordonly  	: fdopt = 0x0
	const Owronly  	: fdopt = 0x1
	const Ordwr    	: fdopt = 0x2
	const Oappend  	: fdopt = 0x8
	const Ocreat   	: fdopt = 0x200
	const Onofollow	: fdopt = 0x100
	const Ondelay  	: fdopt = 0x4
	const Otrunc   	: fdopt = 0x400
	const Odir	: fdopt = 0x20000

	const Oshlock	: fdopt = 0x0010	/* open with shared file lock */
	const Oexlock	: fdopt = 0x0020	/* open with exclusive file lock */
	const Oasync	: fdopt = 0x0040	/* signal pgrp when data ready */
	const Ofsync	: fdopt = 0x0080	/* synchronous writes */
	const Oexcl	: fdopt = 0x0800	/* error if already exists */
	const Ocloexec	: fdopt = 0x00100000

        /* stat modes */	
	const Sifmt	: filemode = 0xf000
	const Sififo	: filemode = 0x1000
	const Sifchr	: filemode = 0x2000
	const Sifdir	: filemode = 0x4000
	const Sifblk	: filemode = 0x6000
	const Sifreg	: filemode = 0x8000
	const Siflnk	: filemode = 0xa000
	const Sifsock 	: filemode = 0xc000

	/* mmap protection */
	const Mprotnone	: mprot = 0x0
	const Mprotrd	: mprot = 0x1
	const Mprotwr	: mprot = 0x2
	const Mprotexec	: mprot = 0x4
	const Mprotrw	: mprot = 0x3

	/* mmap options */
	const Mshared	: mopt = 0x1
	const Mpriv	: mopt = 0x2
	const Mfixed	: mopt = 0x10
	const Mfile	: mopt = 0x0
	const Manon	: mopt = 0x1000
	const M32bit	: mopt = 0x80000

	/* file types */
	const Dtunknown	: filetype = 0
	const Dtfifo	: filetype = 1
	const Dtchr	: filetype = 2
	const Dtdir	: filetype = 4
	const Dtblk	: filetype = 6
	const Dtreg	: filetype = 8
	const Dtlnk	: filetype = 10
	const Dtsock	: filetype = 12
	const Dtwht	: filetype = 14

	/* socket families. INCOMPLETE. */
	const Afunspec	: sockfam = 0
	const Afunix	: sockfam = 1
	const Afinet	: sockfam = 2
	const Afinet6	: sockfam = 28

	/* socket types. */
	const Sockstream	: socktype = 1
	const Sockdgram		: socktype = 2
	const Sockraw		: socktype = 3
	const Sockrdm		: socktype = 4
	const Sockseqpacket	: socktype = 5

	/* socket options */
	const Sodebug	: sockopt = 0x0001		/* turn on debugging info recording */
	const Soacceptconn	: sockopt = 0x0002	/* socket has had listen() */
	const Soreuseaddr	: sockopt = 0x0004	/* allow local address reuse */
	const Sokeepalive	: sockopt = 0x0008	/* keep connections alive */
	const Sodontroute	: sockopt = 0x0010	/* just use interface addresses */
	const Sobroadcast	: sockopt = 0x0020	/* permit sending of broadcast msgs */
	const Souseloopback	: sockopt = 0x0040	/* bypass hardware when possible */
	const Solinger		: sockopt = 0x0080	/* linger on close if data present */
	const Sooobinline	: sockopt = 0x0100	/* leave received OOB data in line */
	const Soreuseport	: sockopt = 0x0200	/* allow local address & port reuse */
	const Sotimestamp	: sockopt = 0x0400	/* timestamp received dgram traffic */
	const Sonosigpipe	: sockopt = 0x0800	/* no SIGPIPE from EPIPE */
	const Soacceptfilter	: sockopt = 0x1000	/* there is an accept filter */
	const Sobintime		: sockopt = 0x2000	/* timestamp received dgram traffic */
	const Sonooffload	: sockopt = 0x4000	/* socket cannot be offloaded */
	const Sonoddp		: sockopt = 0x8000	/* disable direct data placement */

	/* socket option levels */
	const Solsocket		: sockproto = 0xffff

	/* network protocols */
	const Ipproto_ip	: sockproto = 0
	const Ipproto_icmp	: sockproto = 1
	const Ipproto_tcp	: sockproto = 6
	const Ipproto_udp	: sockproto = 17
	const Ipproto_raw	: sockproto = 255

	/* poll options */
	const Pollin		: uint16 = 0x0001	/* any readable data available */
	const Pollpri		: uint16 = 0x0002	/* OOB/Urgent readable data */
	const Pollout		: uint16 = 0x0004	/* file descriptor is writeable */
	const Pollrdnorm	: uint16 = 0x0040	/* non-OOB/URG data available */
	const Pollwrnorm	: uint16 = Pollout	/* no write type differentiation */
	const Pollrdband	: uint16 = 0x0080	/* OOB/Urgent readable data */
	const Pollwrband	: uint16 = 0x0100	/* OOB/Urgent data can be written */
	/* General FreeBSD extension (currently only supported for sockets): */
	const Pollinigneof	: uint16 = 0x2000	/* like POLLIN, except ignore EOF */
	/*
	* These events are set if they occur regardless of whether they were
	* requested.
	*/
	const Pollerr		: uint16 = 0x0008		/* some poll error occurred */
	const Pollhup		: uint16 = 0x0010		/* file descriptor was "hung up" */
	const Pollnval		: uint16 = 0x0020		/* requested events "invalid" */

	const Seekset	: whence = 0
	const Seekcur	: whence = 1
	const Seekend	: whence = 2

	/* system specific constants */
	const Maxpathlen	: size = 1024

	/* fcntl constants */
	const Fdupfd	 : fcntlcmd = 0		/* duplicate file descriptor */
	const Fgetfd	 : fcntlcmd = 1		/* get file descriptor flags */
	const Fsetfd	 : fcntlcmd = 2		/* set file descriptor flags */
	const Fgetfl	 : fcntlcmd = 3		/* get file status flags */
	const Fsetfl	 : fcntlcmd = 4		/* set file status flags */
	const Fgetown	 : fcntlcmd = 5		/* get SIGIO/SIGURG proc/pgrp */
	const Fsetown	 : fcntlcmd = 6		/* set SIGIO/SIGURG proc/pgrp */
	const Fogetlk	 : fcntlcmd = 7		/* get record locking information */
	const Fosetlk	 : fcntlcmd = 8		/* set record locking information */
	const Fosetlkw	 : fcntlcmd = 9		/* F_SETLK; wait if blocked */
	const Fdup2fd	 : fcntlcmd = 10		/* duplicate file descriptor to arg */
	const Fgetlk	 : fcntlcmd = 11		/* get record locking information */
	const Fsetlk	 : fcntlcmd = 12		/* set record locking information */
	const Fsetlkw	 : fcntlcmd = 13		/* F_SETLK; wait if blocked */
	const Fsetlk_remote	 : fcntlcmd = 14		/* debugging support for remote locks */
	const Freadahead	 : fcntlcmd = 15		/* read ahead */
	const Frdahead	 : fcntlcmd = 16		/* Darwin compatible read ahead */
	const Fdupfd_cloexec	 : fcntlcmd = 17		/* Like F_DUPFD, but FD_CLOEXEC is set */
	const Fdup2fd_cloexec	 : fcntlcmd = 18		/* Like F_DUP2FD, but FD_CLOEXEC is set */

	/* return value for a failed mapping */
	const Mapbad	: byte# = (-1 : byte#)

	/* umtx ops */
	const Umtxlock	: umtxop = 0
	const Umtxunlock	: umtxop = 1
	const Umtxwait	: umtxop = 2
	const Umtxwake	: umtxop = 3
	const UmtxmtxTrylock	: umtxop = 4
	const Umtxmtxlock	: umtxop = 5
	const Umtxmtxunlock	: umtxop = 6
	const Umtxsetceiling	: umtxop = 7
	const Umtxcvwait	: umtxop = 8
	const Umtxcvsignal	: umtxop = 9
	const Umtxcvbroadcast	: umtxop = 10
	const Umtxwaituint	: umtxop = 11
	const Umtxrwrdlock	: umtxop = 12
	const Umtxrwwrlock	: umtxop = 13
	const Umtxrwunlock	: umtxop = 14
	const Umtxwaituintpriv	: umtxop = 15
	const Umtxwakepriv	: umtxop = 16
	const Umtxmutexwait	: umtxop = 17
	const Umtxsemwait	: umtxop = 19
	const Umtxsemwake	: umtxop = 20
	const Umtxnwakepriv	: umtxop = 21
	const Umtxmtxwake2	: umtxop = 22
	const Umtxmax	: umtxop = 23

	/* signal actions */
	const Saonstack		: sigflags = 0x0001	/* take signal on signal stack */
	const Sarestart		: sigflags = 0x0002	/* restart system call on signal return */
	const Saresethand	: sigflags = 0x0004	/* reset to SIG_DFL when taking signal */
	const Sanodefer		: sigflags = 0x0010	/* don't mask the signal we're delivering */
	const Sanocldwait	: sigflags = 0x0020	/* don't keep zombies around */
	const Sasiginfo		: sigflags = 0x0040	/* signal handler with SA_SIGINFO args */

	/* signal numbers */
	const Sighup	: signo = 1	/* hangup */
	const Sigint	: signo = 2	/* interrupt */
	const Sigquit	: signo = 3	/* quit */
	const Sigill	: signo = 4	/* illegal instr. (not reset when caught) */
	const Sigtrap	: signo = 5	/* trace trap (not reset when caught) */
	const Sigabrt	: signo = 6	/* abort() */
	const Sigiot	: signo = Sigabrt	/* compatibility */
	const Sigemt	: signo = 7	/* EMT instruction */
	const Sigfpe	: signo = 8	/* floating point exception */
	const Sigkill	: signo = 9	/* kill (cannot be caught or ignored) */
	const Sigbus	: signo = 10	/* bus error */
	const Sigsegv	: signo = 11	/* segmentation violation */
	const Sigsys	: signo = 12	/* non-existent system call invoked */
	const Sigpipe	: signo = 13	/* write on a pipe with no one to read it */
	const Sigalrm	: signo = 14	/* alarm clock */
	const Sigterm	: signo = 15	/* software termination signal from kill */
	const Sigurg	: signo = 16	/* urgent condition on IO channel */
	const Sigstop	: signo = 17	/* sendable stop signal not from tty */
	const Sigtstp	: signo = 18	/* stop signal from tty */
	const Sigcont	: signo = 19	/* continue a stopped process */
	const Sigchld	: signo = 20	/* to parent on child stop or exit */
	const Sigttin	: signo = 21	/* to readers pgrp upon background tty read */
	const Sigttou	: signo = 22	/* like TTIN if (tp->t_local&LTOSTOP) */
	const Sigio	: signo = 23	/* input/output possible signal */
	const Sigxcpu	: signo = 24	/* exceeded CPU time limit */
	const Sigxfsz	: signo = 25	/* exceeded file size limit */
	const Sigvtalrm	: signo = 26	/* virtual time alarm */
	const Sigprof	: signo = 27	/* profiling time alarm */
	const Sigwinch	: signo = 28	/* window size changes */
	const Siginfo	: signo = 29	/* information request */
	const Sigusr1	: signo = 30	/* user defined signal 1 */
	const Sigusr2	: signo = 31	/* user defined signal 2 */
	const Sigthr	: signo = 32	/* reserved by thread library. */
	const Siglwp	: signo = Sigthr
	const Siglibrt	: signo = 33	/* reserved by real-time library. */

	/* syscalls */
	const Syssyscall	 : scno = 0
	const Sysexit	 : scno = 1
	const Sysfork	 : scno = 2
	const Sysread	 : scno = 3
	const Syswrite	 : scno = 4
	const Sysopen	 : scno = 5
	const Sysclose	 : scno = 6
	const Syscompat_50_wait4	 : scno = 7
	const Syscompat_43_ocreat	 : scno = 8
	const Syslink	 : scno = 9
	const Sysunlink	 : scno = 10
	/* 11 is obsolete execv */
	const Syschdir	 : scno = 12
	const Sysfchdir	 : scno = 13
	const Syscompat_50_mknod	 : scno = 14
	const Syschmod	 : scno = 15
	const Syschown	 : scno = 16
	const Sysbreak	 : scno = 17
	const Syscompat_20_getfsstat	 : scno = 18
	const Syscompat_43_olseek	 : scno = 19
	const Sysgetpid	 : scno = 20
	const Syscompat_40_mount	 : scno = 21
	const Sysunmount	 : scno = 22
	const Syssetuid	 : scno = 23
	const Sysgetuid	 : scno = 24
	const Sysgeteuid	 : scno = 25
	const Sysptrace	 : scno = 26
	const Sysrecvmsg	 : scno = 27
	const Syssendmsg	 : scno = 28
	const Sysrecvfrom	 : scno = 29
	const Sysaccept	 : scno = 30
	const Sysgetpeername	 : scno = 31
	const Sysgetsockname	 : scno = 32
	const Sysaccess	 : scno = 33
	const Syschflags	 : scno = 34
	const Sysfchflags	 : scno = 35
	const Syssync	 : scno = 36
	const Syskill	 : scno = 37
	const Syscompat_43_stat43	 : scno = 38
	const Sysgetppid	 : scno = 39
	const Syscompat_43_lstat43	 : scno = 40
	const Sysdup	 : scno = 41
	const Syspipe	 : scno = 42
	const Sysgetegid	 : scno = 43
	const Sysprofil	 : scno = 44
	const Sysktrace	 : scno = 45
	const Syscompat_13_sigaction13	 : scno = 46
	const Sysgetgid	 : scno = 47
	const Syscompat_13_sigprocmask13	 : scno = 48
	const Sys__getlogin	 : scno = 49
	const Sys__setlogin	 : scno = 50
	const Sysacct	 : scno = 51
	const Syscompat_13_sigpending13	 : scno = 52
	const Syscompat_13_sigaltstack13	 : scno = 53
	const Sysioctl	 : scno = 54
	const Syscompat_12_oreboot	 : scno = 55
	const Sysrevoke	 : scno = 56
	const Syssymlink	 : scno = 57
	const Sysreadlink	 : scno = 58
	const Sysexecve	 : scno = 59
	const Sysumask	 : scno = 60
	const Syschroot	 : scno = 61
	const Syscompat_43_fstat43	 : scno = 62
	const Syscompat_43_ogetkerninfo	 : scno = 63
	const Syscompat_43_ogetpagesize	 : scno = 64
	const Syscompat_12_msync	 : scno = 65
	const Sysvfork	 : scno = 66
	/* 67 is obsolete vread */
	/* 68 is obsolete vwrite */
	const Syssbrk	 : scno = 69
	const Syssstk	 : scno = 70
	const Syscompat_43_ommap	 : scno = 71
	const Sysvadvise	 : scno = 72
	const Sysmunmap	 : scno = 73
	const Sysmprotect	 : scno = 74
	const Sysmadvise	 : scno = 75
	/* 76 is obsolete vhangup */
	/* 77 is obsolete vlimit */
	const Sysmincore	 : scno = 78
	const Sysgetgroups	 : scno = 79
	const Syssetgroups	 : scno = 80
	const Sysgetpgrp	 : scno = 81
	const Syssetpgid	 : scno = 82
	const Syscompat_50_setitimer	 : scno = 83
	const Syscompat_43_owait	 : scno = 84
	const Syscompat_12_oswapon	 : scno = 85
	const Syscompat_50_getitimer	 : scno = 86
	const Syscompat_43_ogethostname	 : scno = 87
	const Syscompat_43_osethostname	 : scno = 88
	const Syscompat_43_ogetdtablesize	 : scno = 89
	const Sysdup2	 : scno = 90
	const Sysfcntl	 : scno = 92
	const Syscompat_50_select	 : scno = 93
	const Sysfsync	 : scno = 95
	const Syssetpriority	 : scno = 96
	const Syscompat_30_socket	 : scno = 97
	const Sysconnect	 : scno = 98
	const Syscompat_43_oaccept	 : scno = 99
	const Sysgetpriority	 : scno = 100
	const Syscompat_43_osend	 : scno = 101
	const Syscompat_43_orecv	 : scno = 102
	const Syscompat_13_sigreturn13	 : scno = 103
	const Sysbind	 : scno = 104
	const Syssetsockopt	 : scno = 105
	const Syslisten	 : scno = 106
	/* 107 is obsolete vtimes */
	const Syscompat_43_osigvec	 : scno = 108
	const Syscompat_43_osigblock	 : scno = 109
	const Syscompat_43_osigsetmask	 : scno = 110
	const Syscompat_13_sigsuspend13	 : scno = 111
	const Syscompat_43_osigstack	 : scno = 112
	const Syscompat_43_orecvmsg	 : scno = 113
	const Syscompat_43_osendmsg	 : scno = 114
	/* 115 is obsolete vtrace */
	const Syscompat_50_gettimeofday	 : scno = 116
	const Syscompat_50_getrusage	 : scno = 117
	const Sysgetsockopt	 : scno = 118
	/* 119 is obsolete resuba */
	const Sysreadv	 : scno = 120
	const Syswritev	 : scno = 121
	const Syscompat_50_settimeofday	 : scno = 122
	const Sysfchown	 : scno = 123
	const Sysfchmod	 : scno = 124
	const Syscompat_43_orecvfrom	 : scno = 125
	const Syssetreuid	 : scno = 126
	const Syssetregid	 : scno = 127
	const Sysrename	 : scno = 128
	const Syscompat_43_otruncate	 : scno = 129
	const Syscompat_43_oftruncate	 : scno = 130
	const Sysflock	 : scno = 131
	const Sysmkfifo	 : scno = 132
	const Syssendto	 : scno = 133
	const Sysshutdown	 : scno = 134
	const Syssocketpair	 : scno = 135
	const Sysmkdir	 : scno = 136
	const Sysrmdir	 : scno = 137
	const Syscompat_50_utimes	 : scno = 138
	/* 139 is obsolete 4.2 sigreturn */
	const Syscompat_50_adjtime	 : scno = 140
	const Syscompat_43_ogetpeername	 : scno = 141
	const Syscompat_43_ogethostid	 : scno = 142
	const Syscompat_43_osethostid	 : scno = 143
	const Syscompat_43_ogetrlimit	 : scno = 144
	const Syscompat_43_osetrlimit	 : scno = 145
	const Syscompat_43_okillpg	 : scno = 146
	const Syssetsid	 : scno = 147
	const Syscompat_50_quotactl	 : scno = 148
	const Syscompat_43_oquota	 : scno = 149
	const Syscompat_43_ogetsockname	 : scno = 150
	const Sysnfssvc	 : scno = 155
	const Syscompat_43_ogetdirentries	 : scno = 156
	const Syscompat_20_statfs	 : scno = 157
	const Syscompat_20_fstatfs	 : scno = 158
	const Syscompat_30_getfh	 : scno = 161
	const Syscompat_09_ogetdomainname	 : scno = 162
	const Syscompat_09_osetdomainname	 : scno = 163
	const Syscompat_09_ouname	 : scno = 164
	const Syssysarch	 : scno = 165
	const Syscompat_10_osemsys	 : scno = 169
	const Syscompat_10_omsgsys	 : scno = 170
	const Syscompat_10_oshmsys	 : scno = 171
	const Syspread	 : scno = 173
	const Syspwrite	 : scno = 174
	const Syscompat_30_ntp_gettime	 : scno = 175
	const Sysntp_adjtime	 : scno = 176
	const Syssetgid	 : scno = 181
	const Syssetegid	 : scno = 182
	const Sysseteuid	 : scno = 183
	const Syslfs_bmapv	 : scno = 184
	const Syslfs_markv	 : scno = 185
	const Syslfs_segclean	 : scno = 186
	const Syscompat_50_lfs_segwait	 : scno = 187
	const Syscompat_12_stat12	 : scno = 188
	const Syscompat_12_fstat12	 : scno = 189
	const Syscompat_12_lstat12	 : scno = 190
	const Syspathconf	 : scno = 191
	const Sysfpathconf	 : scno = 192
	const Sysgetrlimit	 : scno = 194
	const Syssetrlimit	 : scno = 195
	const Syscompat_12_getdirentries	 : scno = 196
	const Sysmmap	 : scno = 197
	const Sys__syscall	 : scno = 198
	const Syslseek	 : scno = 199
	const Systruncate	 : scno = 200
	const Sysftruncate	 : scno = 201
	const Sys__sysctl	 : scno = 202
	const Sysmlock	 : scno = 203
	const Sysmunlock	 : scno = 204
	const Sysundelete	 : scno = 205
	const Syscompat_50_futimes	 : scno = 206
	const Sysgetpgid	 : scno = 207
	const Sysreboot	 : scno = 208
	const Syspoll	 : scno = 209
	const Sysafssys	 : scno = 210
	const Syscompat_14___semctl	 : scno = 220
	const Syssemget	 : scno = 221
	const Syssemop	 : scno = 222
	const Syssemconfig	 : scno = 223
	const Syscompat_14_msgctl	 : scno = 224
	const Sysmsgget	 : scno = 225
	const Sysmsgsnd	 : scno = 226
	const Sysmsgrcv	 : scno = 227
	const Sysshmat	 : scno = 228
	const Syscompat_14_shmctl	 : scno = 229
	const Sysshmdt	 : scno = 230
	const Sysshmget	 : scno = 231
	const Syscompat_50_clock_gettime	 : scno = 232
	const Syscompat_50_clock_settime	 : scno = 233
	const Syscompat_50_clock_getres	 : scno = 234
	const Systimer_create	 : scno = 235
	const Systimer_delete	 : scno = 236
	const Syscompat_50_timer_settime	 : scno = 237
	const Syscompat_50_timer_gettime	 : scno = 238
	const Systimer_getoverrun	 : scno = 239
	const Syscompat_50_nanosleep	 : scno = 240
	const Sysfdatasync	 : scno = 241
	const Sysmlockall	 : scno = 242
	const Sysmunlockall	 : scno = 243
	const Syscompat_50___sigtimedwait	 : scno = 244
	const Syssigqueueinfo	 : scno = 245
	const Sysmodctl	 : scno = 246
	const Sys_ksem_init	 : scno = 247
	const Sys_ksem_open	 : scno = 248
	const Sys_ksem_unlink	 : scno = 249
	const Sys_ksem_close	 : scno = 250
	const Sys_ksem_post	 : scno = 251
	const Sys_ksem_wait	 : scno = 252
	const Sys_ksem_trywait	 : scno = 253
	const Sys_ksem_getvalue	 : scno = 254
	const Sys_ksem_destroy	 : scno = 255
	const Sys_ksem_timedwait	 : scno = 256
	const Sysmq_open	 : scno = 257
	const Sysmq_close	 : scno = 258
	const Sysmq_unlink	 : scno = 259
	const Sysmq_getattr	 : scno = 260
	const Sysmq_setattr	 : scno = 261
	const Sysmq_notify	 : scno = 262
	const Sysmq_send	 : scno = 263
	const Sysmq_receive	 : scno = 264
	const Syscompat_50_mq_timedsend	 : scno = 265
	const Syscompat_50_mq_timedreceive	 : scno = 266
	const Sys__posix_rename	 : scno = 270
	const Sysswapctl	 : scno = 271
	const Syscompat_30_getdents	 : scno = 272
	const Sysminherit	 : scno = 273
	const Syslchmod	 : scno = 274
	const Syslchown	 : scno = 275
	const Syscompat_50_lutimes	 : scno = 276
	const Sys__msync13	 : scno = 277
	const Syscompat_30___stat13	 : scno = 278
	const Syscompat_30___fstat13	 : scno = 279
	const Syscompat_30___lstat13	 : scno = 280
	const Sys__sigaltstack14	 : scno = 281
	const Sys__vfork14	 : scno = 282
	const Sys__posix_chown	 : scno = 283
	const Sys__posix_fchown	 : scno = 284
	const Sys__posix_lchown	 : scno = 285
	const Sysgetsid	 : scno = 286
	const Sys__clone	 : scno = 287
	const Sysfktrace	 : scno = 288
	const Syspreadv	 : scno = 289
	const Syspwritev	 : scno = 290
	const Syscompat_16___sigaction14	 : scno = 291
	const Sys__sigpending14	 : scno = 292
	const Sys__sigprocmask14	 : scno = 293
	const Sys__sigsuspend14	 : scno = 294
	const Syscompat_16___sigreturn14	 : scno = 295
	const Sys__getcwd	 : scno = 296
	const Sysfchroot	 : scno = 297
	const Syscompat_30_fhopen	 : scno = 298
	const Syscompat_30_fhstat	 : scno = 299
	const Syscompat_20_fhstatfs	 : scno = 300
	const Syscompat_50_____semctl13	 : scno = 301
	const Syscompat_50___msgctl13	 : scno = 302
	/* 302 is excluded __msgctl13 */
	const Syscompat_50___shmctl13	 : scno = 303
	const Syslchflags	 : scno = 304
	const Sysissetugid	 : scno = 305
	const Sysutrace	 : scno = 306
	const Sysgetcontext	 : scno = 307
	const Syssetcontext	 : scno = 308
	const Sys_lwp_create	 : scno = 309
	const Sys_lwp_exit	 : scno = 310
	const Sys_lwp_self	 : scno = 311
	const Sys_lwp_wait	 : scno = 312
	const Sys_lwp_suspend	 : scno = 313
	const Sys_lwp_continue	 : scno = 314
	const Sys_lwp_wakeup	 : scno = 315
	const Sys_lwp_getprivate	 : scno = 316
	const Sys_lwp_setprivate	 : scno = 317
	const Sys_lwp_kill	 : scno = 318
	const Sys_lwp_detach	 : scno = 319
	const Syscompat_50__lwp_park	 : scno = 320
	const Sys_lwp_unpark	 : scno = 321
	const Sys_lwp_unpark_all	 : scno = 322
	const Sys_lwp_setname	 : scno = 323
	const Sys_lwp_getname	 : scno = 324
	const Sys_lwp_ctl	 : scno = 325
	const Syscompat_60_sa_register	 : scno = 330
	const Syscompat_60_sa_stacks	 : scno = 331
	const Syscompat_60_sa_enable	 : scno = 332
	const Syscompat_60_sa_setconcurrency	 : scno = 333
	const Syscompat_60_sa_yield	 : scno = 334
	const Syscompat_60_sa_preempt	 : scno = 335
	/* 336 is obsolete sys_sa_unblockyield */
	const Sys__sigaction_sigtramp	 : scno = 340
	const Syspmc_get_info	 : scno = 341
	const Syspmc_control	 : scno = 342
	const Sysrasctl	 : scno = 343
	const Syskqueue	 : scno = 344
	const Syscompat_50_kevent	 : scno = 345
	const Sys_sched_setparam	 : scno = 346
	const Sys_sched_getparam	 : scno = 347
	const Sys_sched_setaffinity	 : scno = 348
	const Sys_sched_getaffinity	 : scno = 349
	const Syssched_yield	 : scno = 350
	const Sysfsync_range	 : scno = 354
	const Sysuuidgen	 : scno = 355
	const Sysgetvfsstat	 : scno = 356
	const Sysstatvfs1	 : scno = 357
	const Sysfstatvfs1	 : scno = 358
	const Syscompat_30_fhstatvfs1	 : scno = 359
	const Sysextattrctl	 : scno = 360
	const Sysextattr_set_file	 : scno = 361
	const Sysextattr_get_file	 : scno = 362
	const Sysextattr_delete_file	 : scno = 363
	const Sysextattr_set_fd	 : scno = 364
	const Sysextattr_get_fd	 : scno = 365
	const Sysextattr_delete_fd	 : scno = 366
	const Sysextattr_set_link	 : scno = 367
	const Sysextattr_get_link	 : scno = 368
	const Sysextattr_delete_link	 : scno = 369
	const Sysextattr_list_fd	 : scno = 370
	const Sysextattr_list_file	 : scno = 371
	const Sysextattr_list_link	 : scno = 372
	const Syscompat_50_pselect	 : scno = 373
	const Syscompat_50_pollts	 : scno = 374
	const Syssetxattr	 : scno = 375
	const Syslsetxattr	 : scno = 376
	const Sysfsetxattr	 : scno = 377
	const Sysgetxattr	 : scno = 378
	const Syslgetxattr	 : scno = 379
	const Sysfgetxattr	 : scno = 380
	const Syslistxattr	 : scno = 381
	const Sysllistxattr	 : scno = 382
	const Sysflistxattr	 : scno = 383
	const Sysremovexattr	 : scno = 384
	const Syslremovexattr	 : scno = 385
	const Sysfremovexattr	 : scno = 386
	const Syscompat_50___stat30	 : scno = 387
	const Syscompat_50___fstat30	 : scno = 388
	const Syscompat_50___lstat30	 : scno = 389
	const Sys__getdents30	 : scno = 390
	/* 391 is ignored old posix_fadvise */
	const Syscompat_30___fhstat30	 : scno = 392
	const Syscompat_50___ntp_gettime30	 : scno = 393
	const Sys__socket30	 : scno = 394
	const Sys__getfh30	 : scno = 395
	const Sys__fhopen40	 : scno = 396
	const Sys__fhstatvfs140	 : scno = 397
	const Syscompat_50___fhstat40	 : scno = 398
	const Sysaio_cancel	 : scno = 399
	const Sysaio_error	 : scno = 400
	const Sysaio_fsync	 : scno = 401
	const Sysaio_read	 : scno = 402
	const Sysaio_return	 : scno = 403
	const Syscompat_50_aio_suspend	 : scno = 404
	const Sysaio_write	 : scno = 405
	const Syslio_listio	 : scno = 406
	const Sys__mount50	 : scno = 410
	const Sysmremap	 : scno = 411
	const Syspset_create	 : scno = 412
	const Syspset_destroy	 : scno = 413
	const Syspset_assign	 : scno = 414
	const Sys_pset_bind	 : scno = 415
	const Sys__posix_fadvise50	 : scno = 416
	const Sys__select50	 : scno = 417
	const Sys__gettimeofday50	 : scno = 418
	const Sys__settimeofday50	 : scno = 419
	const Sys__utimes50	 : scno = 420
	const Sys__adjtime50	 : scno = 421
	const Sys__lfs_segwait50	 : scno = 422
	const Sys__futimes50	 : scno = 423
	const Sys__lutimes50	 : scno = 424
	const Sys__setitimer50	 : scno = 425
	const Sys__getitimer50	 : scno = 426
	const Sys__clock_gettime50	 : scno = 427
	const Sys__clock_settime50	 : scno = 428
	const Sys__clock_getres50	 : scno = 429
	const Sys__nanosleep50	 : scno = 430
	const Sys____sigtimedwait50	 : scno = 431
	const Sys__mq_timedsend50	 : scno = 432
	const Sys__mq_timedreceive50	 : scno = 433
	const Syscompat_60__lwp_park	 : scno = 434
	const Sys__kevent50	 : scno = 435
	const Sys__pselect50	 : scno = 436
	const Sys__pollts50	 : scno = 437
	const Sys__aio_suspend50	 : scno = 438
	const Sys__stat50	 : scno = 439
	const Sys__fstat50	 : scno = 440
	const Sys__lstat50	 : scno = 441
	const Sys____semctl50	 : scno = 442
	const Sys__shmctl50	 : scno = 443
	const Sys__msgctl50	 : scno = 444
	const Sys__getrusage50	 : scno = 445
	const Sys__timer_settime50	 : scno = 446
	const Sys__timer_gettime50	 : scno = 447
	const Sys__ntp_gettime50	 : scno = 448
	const Sys__wait450	 : scno = 449
	const Sys__mknod50	 : scno = 450
	const Sys__fhstat50	 : scno = 451
	/* 452 is obsolete 5.99 quotactl */
	const Syspipe2	 : scno = 453
	const Sysdup3	 : scno = 454
	const Syskqueue1	 : scno = 455
	const Syspaccept	 : scno = 456
	const Syslinkat	 : scno = 457
	const Sysrenameat	 : scno = 458
	const Sysmkfifoat	 : scno = 459
	const Sysmknodat	 : scno = 460
	const Sysmkdirat	 : scno = 461
	const Sysfaccessat	 : scno = 462
	const Sysfchmodat	 : scno = 463
	const Sysfchownat	 : scno = 464
	const Sysfexecve	 : scno = 465
	const Sysfstatat	 : scno = 466
	const Sysutimensat	 : scno = 467
	const Sysopenat	 : scno = 468
	const Sysreadlinkat	 : scno = 469
	const Syssymlinkat	 : scno = 470
	const Sysunlinkat	 : scno = 471
	const Sysfutimens	 : scno = 472
	const Sys__quotactl	 : scno = 473
	const Sysposix_spawn	 : scno = 474
	const Sysrecvmmsg	 : scno = 475
	const Syssendmmsg	 : scno = 476
	const Sysclock_nanosleep	 : scno = 477
	const Sys___lwp_park60	 : scno = 478
	const Sysposix_fallocate	 : scno = 479
	const Sysfdiscard	 : scno = 480

	extern const syscall : (sc:scno, args:... -> int64)


	/* process control */
	const exit	: (status:int -> void)
	const getpid	: ( -> pid)
	const kill	: (pid:pid, sig:int64 -> int64)
	const fork	: (-> pid)
	const wait4	: (pid:pid, loc:int32#, opt : int64, usage:rusage#	-> int64)
	const waitpid	: (pid:pid, loc:int32#, opt : int64	-> int64)
	const execv	: (cmd : byte[:], args : byte[:][:] -> int64)
	const execve	: (cmd : byte[:], args : byte[:][:], env : byte[:][:] -> int64)

	/* wrappers to extract wait status */
	const waitstatus	: (st : int32 -> waitstatus)

	/* fd manipulation */
	const open	: (path:byte[:], opts:fdopt -> fd)
	const openmode	: (path:byte[:], opts:fdopt, mode:int64 -> fd)
	const close	: (fd:fd -> int64)
	const creat	: (path:byte[:], mode:int64 -> fd)
	const unlink	: (path:byte[:] -> int)
	const rmdir	: (path:byte# -> int)
	const read	: (fd:fd, buf:byte[:] -> size)
	const pread	: (fd:fd, buf:byte[:], off : off -> size)
	const readv	: (fd:fd, iov:iovec[:] -> size)
	const write	: (fd:fd, buf:byte[:] -> size)
	const pwrite	: (fd:fd, buf:byte[:], off : off -> size)
	const writev	: (fd:fd, iov:iovec[:] -> size)
	const lseek	: (fd:fd, off : off, whence : whence -> int64)
	const stat	: (path:byte[:], sb:statbuf# -> int64)
	const lstat	: (path:byte[:], sb:statbuf# -> int64)
	const fstat	: (fd:fd, sb:statbuf# -> int64)
	const mkdir	: (path : byte[:], mode : int64	-> int64)
	generic ioctl	: (fd:fd, req : int64, arg:@a# -> int64)
	const getdents	: (fd : fd, buf : byte[:] -> int64)
	const chdir	: (p : byte[:] -> int64)
	const __getcwd	: (buf : byte[:] -> int64)

	/* signals */
	const sigaction	: (sig : signo, act : sigaction#, oact : sigaction# -> int)
	const sigprocmask	: (how : int32, set : sigset#, oset : sigset# -> int)

	/* fd stuff */
	const pipe	: (fds : fd[2]# -> int64)
	const dup	: (fd : fd -> fd)
	const dup2	: (src : fd, dst : fd -> fd)
	/* NB: the C ABI uses '...' for the args. */
	const fcntl	: (fd : fd, cmd : fcntlcmd, args : byte# -> int64)
	const poll	: (pfd : pollfd[:], tm : int -> int)

	/* networking */
	const socket	: (dom : sockfam, stype : socktype, proto : sockproto	-> fd)
	const connect	: (sock	: fd, addr : sockaddr#, len : size -> int)
	const accept	: (sock : fd, addr : sockaddr#, len : size# -> fd)
	const listen	: (sock : fd, backlog : int	-> int)
	const bind	: (sock : fd, addr : sockaddr#, len : size -> int)
	const setsockopt	: (sock : fd, lev : sockproto, opt : sockopt, val : void#, len : size -> int)
	const getsockopt	: (sock : fd, lev : sockproto, opt : sockopt, val : void#, len : size# -> int)

	/* memory mapping */
	const munmap	: (addr:byte#, len:size -> int64)
	const mmap	: (addr:byte#, len:size, prot:mprot, flags:mopt, fd:fd, off:off -> byte#)

	/* time - doublecheck if this is right */
	const clock_getres	: (clk : clock, ts : timespec# -> int32)
	const clock_gettime	: (clk : clock, ts : timespec# -> int32)
	const clock_settime	: (clk : clock, ts : timespec# -> int32)
	const nanosleep	: (req : timespec#, rem : timespec# -> int32)

	/* system information */
	const uname 	: (buf : utsname# -> int)
	const sysctl	: (mib : int[:], \
		old : void#, oldsz : size#, \
		new : void#, newsz : size# \
		-> int)

	extern const cstring	: (str : byte[:] -> byte#)
	/* filled by start code */
	extern var __cenvp : byte##
;;

/* 
wraps a syscall argument, converting it to 64 bits for the syscall function. This is
the same as casting, but more concise than (writing : int64)
*/
generic a = {x : @t; -> (x : uint64)}

extern const alloca	: (sz : size	-> byte#)

/* process management */
const exit	= {status;		syscall(Sysexit, a(status))}
const getpid	= {;			-> (syscall(Sysgetpid, 1) : pid)}
const kill	= {pid, sig;		-> syscall(Syskill, pid, sig)}
const fork	= {;			-> (syscall(Sysfork) : pid)}
const wait4	= {pid, loc, opt, usage;	-> syscall(Sys__wait450, pid, loc, opt, usage)}
const waitpid	= {pid, loc, opt;
	-> wait4(pid, loc, opt, (0 : rusage#)) 
}

const execv	= {cmd, args
	var p, cargs, i

	/* of course we fucking have to duplicate this code everywhere,
	* since we want to stack allocate... */
	p = alloca((args.len + 1)*sizeof(byte#))
	cargs = ((p : byte##))[:args.len + 1]
	for i = 0; i < args.len; i++
		cargs[i] = cstring(args[i])
	;;
	cargs[args.len] = (0 : byte#)
	-> syscall(Sysexecve, cstring(cmd), a(p), a(__cenvp))
}

const execve	= {cmd, args, env
	var cargs, cenv, i
	var p

	/* copy the args */
	p = alloca((args.len + 1)*sizeof(byte#))
	cargs = ((p : byte##))[:args.len]
	for i = 0; i < args.len; i++
		cargs[i] = cstring(args[i])
	;;
	cargs[args.len] = (0 : byte#)

	/*
	 copy the env.
	 of course we fucking have to duplicate this code everywhere,
	 since we want to stack allocate... 
	*/
	p = alloca((env.len + 1)*sizeof(byte#))
	cenv = ((p : byte##))[:env.len]
	for i = 0; i < env.len; i++
		cenv[i] = cstring(env[i])
	;;
	cenv[env.len] = (0 : byte#)

	-> syscall(Sysexecve, cstring(cmd), a(p), a(cenv))
}

/* thread management */
/* FIXME: not implemented
const thr_new	= {param, sz;	-> (syscall(Sys_lwp_create, a(param), a(sz)) : int)}
const thr_exit	= {state;	syscall(Systhr_exit, a(state))}
const umtx_op	= {obj, op, val, a1, a2; -> (syscall(Sys_umtx_op, a(obj), a(op), a(val), a(a1), a(a2)) : int)}
const yield	= {;	-> (syscall(Sysyield) : int)}
*/

/* fd manipulation */
const open	= {path, opts;		-> (syscall(Sysopen, cstring(path), a(opts), a(0o777)) : fd)}
const openmode	= {path, opts, mode;	-> (syscall(Sysopen, cstring(path), a(opts), a(mode)) : fd)}
const close	= {fd;			-> syscall(Sysclose, a(fd))}
const creat	= {path, mode;		-> (openmode(path, Ocreat | Otrunc | Owronly, mode) : fd)}
const unlink	= {path;		-> (syscall(Sysunlink, cstring(path)) : int)}
const rmdir	= {path;		-> (syscall(Sysunlink, a(path)) : int)}
const read	= {fd, buf;		-> (syscall(Sysread, a(fd), (buf : byte#), a(buf.len)) : size)}
const pread	= {fd, buf, off;	-> (syscall(Syspread, a(fd), (buf : byte#), a(buf.len), a(off)) : size)}
const readv	= {fd, vec;		-> (syscall(Sysreadv, a(fd), (vec : iovec#), a(vec.len)) : size)}
const write	= {fd, buf;		-> (syscall(Syswrite, a(fd), (buf : byte#), a(buf.len)) : size)}
const pwrite	= {fd, buf, off;	-> (syscall(Syspwrite, a(fd), (buf : byte#), a(buf.len), a(off)) : size)}
const writev	= {fd, vec;		-> (syscall(Syswritev, a(fd), (vec : iovec#), a(vec.len)) : size)}
const lseek	= {fd, off, whence;	-> syscall(Syslseek, a(fd), a(off), a(whence))}
const stat	= {path, sb;		-> syscall(Sys__stat50, cstring(path), a(sb))}
const lstat	= {path, sb;		-> syscall(Sys__lstat50, cstring(path), a(sb))}
const fstat	= {fd, sb;		-> syscall(Sys__fstat50, a(fd), a(sb))}
const mkdir	= {path, mode;		-> (syscall(Sysmkdir, cstring(path), a(mode)) : int64)}
generic ioctl	= {fd, req, arg;	-> (syscall(Sysioctl, a(fd), a(req), a(arg)) : int64)
}
const getdents	= {fd, buf;		-> (syscall(Sys__getdents30, a(buf), a(buf.len)) : int64)}
const chdir	= {dir;	-> syscall(Syschdir, cstring(dir))}
const __getcwd	= {buf;	-> syscall(Sys__getcwd, a(buf), a(buf.len))}

/* file stuff */
extern const __netbsd_pipe	: (fds : fd[2]# -> int64)
const pipe	= {fds;	-> __netbsd_pipe(fds)}
const dup 	= {fd;	-> (syscall(Sysdup, a(fd)) : fd)}
const dup2 	= {src, dst;	-> (syscall(Sysdup2, a(src), a(dst)) : fd)}
const fcntl	= {fd, cmd, args; 	-> syscall(Sysfcntl, a(fd), a(cmd), a(args))}
const poll	= {pfd, tm;	-> (syscall(Syspoll, (pfd : byte#), a(pfd.len), a(tm)) : int)}

/* signals */
const sigaction	= {sig, act, oact;	-> (syscall(Sys__sigaction_sigtramp, a(sig), a(act), a(oact), 2) : int)}
const sigprocmask	= {sig, act, oact;	-> (syscall(Sys__sigprocmask14, a(sig), a(act), a(oact)) : int)}

/* networking */
const socket	= {dom, stype, proto;	-> (syscall(Sys__socket30, a(dom), a(stype), a(proto)) : fd) }
const connect	= {sock, addr, len;	-> (syscall(Sysconnect, a(sock), a(addr), a(len)) : int)}
const accept	= {sock, addr, len;	-> (syscall(Sysaccept, a(sock), a(addr), a(len)) : fd)}
const listen	= {sock, backlog;	-> (syscall(Syslisten, a(sock), a(backlog)) : int)}
const bind	= {sock, addr, len;	-> (syscall(Sysbind, a(sock), a(addr), a(len)) : int)}
const setsockopt	= {sock, lev, opt, val, len;	-> (syscall(Syssetsockopt, a(sock), a(lev), a(opt), a(val), a(len)) : int)}
const getsockopt	= {sock, lev, opt, val, len;	-> (syscall(Syssetsockopt, a(sock), a(lev), a(opt), a(val), a(len)) : int)}

/* memory management */
const munmap	= {addr, len;		-> syscall(Sysmunmap, a(addr), a(len))}
const mmap	= {addr, len, prot, flags, fd, off;
	-> (syscall(Sysmmap, a(addr), a(len), a(prot), a(flags), a(fd), a(off)) : byte#)}

/* time */
const clock_getres = {clk, ts;	-> (syscall(Sys__clock_getres50, clockid(clk), a(ts)) : int32)}
const clock_gettime = {clk, ts;	-> (syscall(Sys__clock_gettime50, clockid(clk), a(ts)) : int32)}
const clock_settime = {clk, ts;	-> (syscall(Sys__clock_settime50, clockid(clk), a(ts)) : int32)}
const nanosleep	= {req, rem;	-> (syscall(Sys__nanosleep50, a(req), a(rem)) : int32)}
const sched_yield = {;	syscall(Syssched_yield)}

/* system information */
const uname	= {buf
	var mib : int[2]
	var ret
	var sys, syssz
	var nod, nodsz
	var rel, relsz
	var ver, versz
	var mach, machsz

	ret = 0
	mib[0] = 1 /* CTL_KERN */
	mib[1] = 1 /* KERN_OSTYPE */
	sys = (buf.system[:] : void#)
	syssz = buf.system.len
	ret = sysctl(mib[:], sys, &syssz, (0 : void#), (0 : size#))
	if ret < 0
		-> ret
	;;

	mib[0] = 1 /* CTL_KERN */
	mib[1] = 10 /* KERN_HOSTNAME */
	nod = (buf.node[:] : void#)
	nodsz = buf.node.len
	ret = sysctl(mib[:], nod, &nodsz, (0 : void#), (0 : size#))
	if ret < 0
		-> ret
	;;

	mib[0] = 1 /* CTL_KERN */
	mib[1] = 2 /* KERN_OSRELEASE */
	rel = (buf.release[:] : void#)
	relsz = buf.release.len
	ret = sysctl(mib[:], rel, &relsz, (0 : void#), (0 : size#))
	if ret < 0
		-> ret
	;;

	mib[0] = 1 /* CTL_KERN */
	mib[1] = 4 /* KERN_VERSION */
	ver = (buf.version[:] : void#)
	versz = buf.version.len
	ret = sysctl(mib[:], ver, &versz, (0 : void#), (0 : size#))
	if ret < 0
		-> ret
	;;

	mib[0] = 6 /* CTL_HW */
	mib[1] = 1 /* HW_MACHINE */
	mach = (buf.machine[:] : void#)
	machsz = buf.machine.len
	ret = sysctl(mib[:], mach, &machsz, (0 : void#), (0 : size#))
	if ret < 0
		-> ret
	;;

	-> 0
}

const sysctl = {mib, old, oldsz, new, newsz
	/* all args already passed through a() or ar  ptrs */
	-> (syscall(Sys__sysctl, \
		(mib : int#), a(mib.len), old, oldsz, new, newsz) : int)
}

const clockid = {clk
	match clk
	| `Clockrealtime:	-> 0
	| `Clockvirtual:	-> 1
	| `Clockprof:	-> 2
	| `Clocktmonotonic:	-> 3
	;;
	-> -1
}

const waitstatus = {st
	if st < 0
		-> `Waitfail st
	;;
	match st & 0o177
	| 0:    -> `Waitexit (st >> 8)
	| 0x7f:-> `Waitstop (st >> 8)
	| sig:  -> `Waitsig sig
	;;
}