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  • // Copyright 2009,2010 The Go Authors. All rights reserved.
    // Use of this source code is governed by a BSD-style
    // license that can be found in the LICENSE file.
    
    // OpenBSD system calls.
    // This file is compiled as ordinary Go code,
    // but it is also input to mksyscall,
    // which parses the //sys lines and generates system call stubs.
    // Note that sometimes we use a lowercase //sys name and wrap
    // it in our own nicer implementation, either here or in
    // syscall_bsd.go or syscall_unix.go.
    
    package syscall
    
    import "unsafe"
    
    const OS = "openbsd"
    
    type SockaddrDatalink struct {
    	Len    uint8
    	Family uint8
    	Index  uint16
    	Type   uint8
    	Nlen   uint8
    	Alen   uint8
    	Slen   uint8
    	Data   [24]int8
    	raw    RawSockaddrDatalink
    }
    
    
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    func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno)
    
    func nametomib(name string) (mib []_C_int, err error) {
    
    	// Perform lookup via a binary search
    	left := 0
    	right := len(sysctlMib) - 1
    	for {
    		idx := left + (right-left)/2
    		switch {
    		case name == sysctlMib[idx].ctlname:
    			return sysctlMib[idx].ctloid, nil
    		case name > sysctlMib[idx].ctlname:
    			left = idx + 1
    		default:
    			right = idx - 1
    		}
    		if left > right {
    			break
    		}
    	}
    	return nil, EINVAL
    }
    
    
    // ParseDirent parses up to max directory entries in buf,
    // appending the names to names. It returns the number
    // bytes consumed from buf, the number of entries added
    // to names, and the new names slice.
    func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) {
    	origlen := len(buf)
    	for max != 0 && len(buf) > 0 {
    		dirent := (*Dirent)(unsafe.Pointer(&buf[0]))
    		if dirent.Reclen == 0 {
    			buf = nil
    			break
    		}
    		buf = buf[dirent.Reclen:]
    		if dirent.Fileno == 0 { // File absent in directory.
    			continue
    		}
    		bytes := (*[10000]byte)(unsafe.Pointer(&dirent.Name[0]))
    		var name = string(bytes[0:dirent.Namlen])
    		if name == "." || name == ".." { // Useless names
    			continue
    		}
    		max--
    		count++
    		names = append(names, name)
    	}
    	return origlen - len(buf), count, names
    }
    
    
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    //sysnb pipe(p *[2]_C_int) (err error)
    func Pipe(p []int) (err error) {
    
    	if len(p) != 2 {
    		return EINVAL
    	}
    	var pp [2]_C_int
    
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    	err = pipe(&pp)
    
    	p[0] = int(pp[0])
    	p[1] = int(pp[1])
    	return
    }
    
    // TODO
    
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    func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
    
    	return -1, ENOSYS
    }
    
    /*
     * Exposed directly
     */
    
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    //sys	Access(path string, mode uint32) (err error)
    //sys	Adjtime(delta *Timeval, olddelta *Timeval) (err error)
    //sys	Chdir(path string) (err error)
    //sys	Chflags(path string, flags int) (err error)
    //sys	Chmod(path string, mode uint32) (err error)
    //sys	Chown(path string, uid int, gid int) (err error)
    //sys	Chroot(path string) (err error)
    //sys	Close(fd int) (err error)
    //sysnb	Dup(fd int) (nfd int, err error)
    //sysnb	Dup2(from int, to int) (err error)
    
    //sys	Exit(code int)
    
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    //sys	Fchdir(fd int) (err error)
    //sys	Fchflags(path string, flags int) (err error)
    //sys	Fchmod(fd int, mode uint32) (err error)
    //sys	Fchown(fd int, uid int, gid int) (err error)
    //sys	Flock(fd int, how int) (err error)
    //sys	Fpathconf(fd int, name int) (val int, err error)
    //sys	Fstat(fd int, stat *Stat_t) (err error)
    //sys	Fstatfs(fd int, stat *Statfs_t) (err error)
    //sys	Fsync(fd int) (err error)
    //sys	Ftruncate(fd int, length int64) (err error)
    //sys	Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error)
    
    //sysnb	Getegid() (egid int)
    //sysnb	Geteuid() (uid int)
    
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    //sys	Getfsstat(buf []Statfs_t, flags int) (n int, err error)
    
    //sysnb	Getgid() (gid int)
    
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    //sysnb	Getpgid(pid int) (pgid int, err error)
    
    //sysnb	Getpgrp() (pgrp int)
    //sysnb	Getpid() (pid int)
    //sysnb	Getppid() (ppid int)
    
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    //sys	Getpriority(which int, who int) (prio int, err error)
    //sysnb	Getrlimit(which int, lim *Rlimit) (err error)
    //sysnb	Getrusage(who int, rusage *Rusage) (err error)
    //sysnb	Getsid(pid int) (sid int, err error)
    //sysnb	Gettimeofday(tv *Timeval) (err error)
    
    //sysnb	Getuid() (uid int)
    //sys	Issetugid() (tainted bool)
    
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    //sys	Kill(pid int, signum int) (err error)
    //sys	Kqueue() (fd int, err error)
    //sys	Lchown(path string, uid int, gid int) (err error)
    //sys	Link(path string, link string) (err error)
    //sys	Listen(s int, backlog int) (err error)
    //sys	Lstat(path string, stat *Stat_t) (err error)
    //sys	Mkdir(path string, mode uint32) (err error)
    //sys	Mkfifo(path string, mode uint32) (err error)
    //sys	Mknod(path string, mode uint32, dev int) (err error)
    //sys	Nanosleep(time *Timespec, leftover *Timespec) (err error)
    //sys	Open(path string, mode int, perm uint32) (fd int, err error)
    //sys	Pathconf(path string, name int) (val int, err error)
    //sys	Pread(fd int, p []byte, offset int64) (n int, err error)
    //sys	Pwrite(fd int, p []byte, offset int64) (n int, err error)
    //sys	Read(fd int, p []byte) (n int, err error)
    //sys	Readlink(path string, buf []byte) (n int, err error)
    //sys	Rename(from string, to string) (err error)
    //sys	Revoke(path string) (err error)
    //sys	Rmdir(path string) (err error)
    //sys	Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
    //sys	Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error)
    //sysnb	Setegid(egid int) (err error)
    //sysnb	Seteuid(euid int) (err error)
    //sysnb	Setgid(gid int) (err error)
    //sys	Setlogin(name string) (err error)
    //sysnb	Setpgid(pid int, pgid int) (err error)
    //sys	Setpriority(which int, who int, prio int) (err error)
    //sysnb	Setregid(rgid int, egid int) (err error)
    //sysnb	Setreuid(ruid int, euid int) (err error)
    //sysnb	Setrlimit(which int, lim *Rlimit) (err error)
    //sysnb	Setsid() (pid int, err error)
    //sysnb	Settimeofday(tp *Timeval) (err error)
    //sysnb	Setuid(uid int) (err error)
    //sys	Stat(path string, stat *Stat_t) (err error)
    //sys	Statfs(path string, stat *Statfs_t) (err error)
    //sys	Symlink(path string, link string) (err error)
    //sys	Sync() (err error)
    //sys	Truncate(path string, length int64) (err error)
    
    //sys	Umask(newmask int) (oldmask int)
    
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    //sys	Unlink(path string) (err error)
    //sys	Unmount(path string, flags int) (err error)
    //sys	Write(fd int, p []byte) (n int, err error)
    //sys	mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
    //sys	munmap(addr uintptr, length uintptr) (err error)
    //sys	read(fd int, buf *byte, nbuf int) (n int, err error)
    //sys	write(fd int, buf *byte, nbuf int) (n int, err error)
    
    
    /*
     * Unimplemented
     */
    // __getcwd
    // __semctl
    // __syscall
    // __sysctl
    // adjfreq
    // break
    // clock_getres
    // clock_gettime
    // clock_settime
    // closefrom
    // execve
    // faccessat
    // fchmodat
    // fchownat
    // fcntl
    // fhopen
    // fhstat
    // fhstatfs
    // fork
    // fstatat
    // futimens
    // getfh
    // getgid
    // getitimer
    // getlogin
    // getresgid
    // getresuid
    // getrtable
    // getthrid
    // ioctl
    // ktrace
    // lfs_bmapv
    // lfs_markv
    // lfs_segclean
    // lfs_segwait
    // linkat
    // mincore
    // minherit
    // mkdirat
    // mkfifoat
    // mknodat
    // mlock
    // mlockall
    // mount
    // mquery
    // msgctl
    // msgget
    // msgrcv
    // msgsnd
    // munlock
    // munlockall
    // nfssvc
    // nnpfspioctl
    // openat
    // poll
    // preadv
    // profil
    // pwritev
    // quotactl
    // readlinkat
    // readv
    // reboot
    // renameat
    // rfork
    // sched_yield
    // semget
    // semop
    // setgroups
    // setitimer
    // setresgid
    // setresuid
    // setrtable
    // setsockopt
    // shmat
    // shmctl
    // shmdt
    // shmget
    // sigaction
    // sigaltstack
    // sigpending
    // sigprocmask
    // sigreturn
    // sigsuspend
    // symlinkat
    // sysarch
    // syscall
    // threxit
    // thrsigdivert
    // thrsleep
    // thrwakeup
    // unlinkat
    // utimensat
    // vfork
    // writev