// 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. // FreeBSD 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" type SockaddrDatalink struct { Len uint8 Family uint8 Index uint16 Type uint8 Nlen uint8 Alen uint8 Slen uint8 Data [46]int8 raw RawSockaddrDatalink } // Translate "kern.hostname" to []_C_int{0,1,2,3}. func nametomib(name string) (mib []_C_int, err error) { const siz = unsafe.Sizeof(mib[0]) // NOTE(rsc): It seems strange to set the buffer to have // size CTL_MAXNAME+2 but use only CTL_MAXNAME // as the size. I don't know why the +2 is here, but the // kernel uses +2 for its own implementation of this function. // I am scared that if we don't include the +2 here, the kernel // will silently write 2 words farther than we specify // and we'll get memory corruption. var buf [CTL_MAXNAME + 2]_C_int n := uintptr(CTL_MAXNAME) * siz p := (*byte)(unsafe.Pointer(&buf[0])) bytes, err := ByteSliceFromString(name) if err != nil { return nil, err } // Magic sysctl: "setting" 0.3 to a string name // lets you read back the array of integers form. if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil { return nil, err } return buf[0 : n/siz], nil } func direntIno(buf []byte) (uint64, bool) { return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno)) } func direntReclen(buf []byte) (uint64, bool) { return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) } func direntNamlen(buf []byte) (uint64, bool) { return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) } func Pipe(p []int) error { return Pipe2(p, 0) } //sysnb pipe2(p *[2]_C_int, flags int) (err error) func Pipe2(p []int, flags int) error { if len(p) != 2 { return EINVAL } var pp [2]_C_int err := pipe2(&pp, flags) p[0] = int(pp[0]) p[1] = int(pp[1]) return err } func GetsockoptIPMreqn(fd, level, opt int) (*IPMreqn, error) { var value IPMreqn vallen := _Socklen(SizeofIPMreqn) errno := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) return &value, errno } func SetsockoptIPMreqn(fd, level, opt int, mreq *IPMreqn) (err error) { return setsockopt(fd, level, opt, unsafe.Pointer(mreq), unsafe.Sizeof(*mreq)) } func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) { var rsa RawSockaddrAny var len _Socklen = SizeofSockaddrAny nfd, err = accept4(fd, &rsa, &len, flags) if err != nil { return } if len > SizeofSockaddrAny { panic("RawSockaddrAny too small") } sa, err = anyToSockaddr(&rsa) if err != nil { Close(nfd) nfd = 0 } return } func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { var _p0 unsafe.Pointer var bufsize uintptr if len(buf) > 0 { _p0 = unsafe.Pointer(&buf[0]) bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) } r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags)) n = int(r0) if e1 != 0 { err = e1 } return } func setattrlistTimes(path string, times []Timespec) error { // used on Darwin for UtimesNano return ENOSYS } /* * Exposed directly */ //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) //sys Dup(fd int) (nfd int, err error) //sys Dup2(from int, to int) (err error) //sys Fchdir(fd int) (err error) //sys Fchflags(fd int, 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) //sys Getdtablesize() (size int) //sysnb Getegid() (egid int) //sysnb Geteuid() (uid int) //sysnb Getgid() (gid int) //sysnb Getpgid(pid int) (pgid int, err error) //sysnb Getpgrp() (pgrp int) //sysnb Getpid() (pid int) //sysnb Getppid() (ppid int) //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) //sys Kill(pid int, signum Signal) (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) //sys Undelete(path string) (err error) //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 readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ //sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE //sys accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error) //sys utimensat(dirfd int, path string, times *[2]Timespec, flag int) (err error) /* * Unimplemented */ // Profil // Sigaction // Sigprocmask // Getlogin // Sigpending // Sigaltstack // Ioctl // Reboot // Execve // Vfork // Sbrk // Sstk // Ovadvise // Mincore // Setitimer // Swapon // Select // Sigsuspend // Readv // Writev // Nfssvc // Getfh // Quotactl // Mount // Csops // Waitid // Add_profil // Kdebug_trace // Sigreturn // Mmap // Mlock // Munlock // Atsocket // Kqueue_from_portset_np // Kqueue_portset // Getattrlist // Setattrlist // Getdirentriesattr // Searchfs // Delete // Copyfile // Poll // Watchevent // Waitevent // Modwatch // Getxattr // Fgetxattr // Setxattr // Fsetxattr // Removexattr // Fremovexattr // Listxattr // Flistxattr // Fsctl // Initgroups // Posix_spawn // Nfsclnt // Fhopen // Minherit // Semsys // Msgsys // Shmsys // Semctl // Semget // Semop // Msgctl // Msgget // Msgsnd // Msgrcv // Shmat // Shmctl // Shmdt // Shmget // Shm_open // Shm_unlink // Sem_open // Sem_close // Sem_unlink // Sem_wait // Sem_trywait // Sem_post // Sem_getvalue // Sem_init // Sem_destroy // Open_extended // Umask_extended // Stat_extended // Lstat_extended // Fstat_extended // Chmod_extended // Fchmod_extended // Access_extended // Settid // Gettid // Setsgroups // Getsgroups // Setwgroups // Getwgroups // Mkfifo_extended // Mkdir_extended // Identitysvc // Shared_region_check_np // Shared_region_map_np // __pthread_mutex_destroy // __pthread_mutex_init // __pthread_mutex_lock // __pthread_mutex_trylock // __pthread_mutex_unlock // __pthread_cond_init // __pthread_cond_destroy // __pthread_cond_broadcast // __pthread_cond_signal // Setsid_with_pid // __pthread_cond_timedwait // Aio_fsync // Aio_return // Aio_suspend // Aio_cancel // Aio_error // Aio_read // Aio_write // Lio_listio // __pthread_cond_wait // Iopolicysys // Mlockall // Munlockall // __pthread_kill // __pthread_sigmask // __sigwait // __disable_threadsignal // __pthread_markcancel // __pthread_canceled // __semwait_signal // Proc_info // Stat64_extended // Lstat64_extended // Fstat64_extended // __pthread_chdir // __pthread_fchdir // Audit // Auditon // Getauid // Setauid // Getaudit // Setaudit // Getaudit_addr // Setaudit_addr // Auditctl // Bsdthread_create // Bsdthread_terminate // Stack_snapshot // Bsdthread_register // Workq_open // Workq_ops // __mac_execve // __mac_syscall // __mac_get_file // __mac_set_file // __mac_get_link // __mac_set_link // __mac_get_proc // __mac_set_proc // __mac_get_fd // __mac_set_fd // __mac_get_pid // __mac_get_lcid // __mac_get_lctx // __mac_set_lctx // Setlcid // Read_nocancel // Write_nocancel // Open_nocancel // Close_nocancel // Wait4_nocancel // Recvmsg_nocancel // Sendmsg_nocancel // Recvfrom_nocancel // Accept_nocancel // Msync_nocancel // Fcntl_nocancel // Select_nocancel // Fsync_nocancel // Connect_nocancel // Sigsuspend_nocancel // Readv_nocancel // Writev_nocancel // Sendto_nocancel // Pread_nocancel // Pwrite_nocancel // Waitid_nocancel // Poll_nocancel // Msgsnd_nocancel // Msgrcv_nocancel // Sem_wait_nocancel // Aio_suspend_nocancel // __sigwait_nocancel // __semwait_signal_nocancel // __mac_mount // __mac_get_mount // __mac_getfsstat