diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/syscall_darwin.go')
| -rw-r--r-- | vendor/golang.org/x/sys/unix/syscall_darwin.go | 245 |
1 files changed, 184 insertions, 61 deletions
diff --git a/vendor/golang.org/x/sys/unix/syscall_darwin.go b/vendor/golang.org/x/sys/unix/syscall_darwin.go index 9a6783e9b..a2e368882 100644 --- a/vendor/golang.org/x/sys/unix/syscall_darwin.go +++ b/vendor/golang.org/x/sys/unix/syscall_darwin.go @@ -13,7 +13,7 @@ package unix import ( - errorspkg "errors" + "errors" "syscall" "unsafe" ) @@ -36,6 +36,7 @@ func Getwd() (string, error) { return "", ENOTSUP } +// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. type SockaddrDatalink struct { Len uint8 Family uint8 @@ -76,18 +77,6 @@ func nametomib(name string) (mib []_C_int, err error) { return buf[0 : n/siz], nil } -func direntIno(buf []byte) (uint64, bool) { - return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino)) -} - -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)) -} - //sys ptrace(request int, pid int, addr uintptr, data uintptr) (err error) func PtraceAttach(pid int) (err error) { return ptrace(PT_ATTACH, pid, 0, 0) } func PtraceDetach(pid int) (err error) { return ptrace(PT_DETACH, pid, 0, 0) } @@ -109,7 +98,7 @@ type attrList struct { func getAttrList(path string, attrList attrList, attrBuf []byte, options uint) (attrs [][]byte, err error) { if len(attrBuf) < 4 { - return nil, errorspkg.New("attrBuf too small") + return nil, errors.New("attrBuf too small") } attrList.bitmapCount = attrBitMapCount @@ -119,17 +108,8 @@ func getAttrList(path string, attrList attrList, attrBuf []byte, options uint) ( return nil, err } - _, _, e1 := Syscall6( - SYS_GETATTRLIST, - uintptr(unsafe.Pointer(_p0)), - uintptr(unsafe.Pointer(&attrList)), - uintptr(unsafe.Pointer(&attrBuf[0])), - uintptr(len(attrBuf)), - uintptr(options), - 0, - ) - if e1 != 0 { - return nil, e1 + if err := getattrlist(_p0, unsafe.Pointer(&attrList), unsafe.Pointer(&attrBuf[0]), uintptr(len(attrBuf)), int(options)); err != nil { + return nil, err } size := *(*uint32)(unsafe.Pointer(&attrBuf[0])) @@ -145,12 +125,12 @@ func getAttrList(path string, attrList attrList, attrBuf []byte, options uint) ( for i := uint32(0); int(i) < len(dat); { header := dat[i:] if len(header) < 8 { - return attrs, errorspkg.New("truncated attribute header") + return attrs, errors.New("truncated attribute header") } datOff := *(*int32)(unsafe.Pointer(&header[0])) attrLen := *(*uint32)(unsafe.Pointer(&header[4])) if datOff < 0 || uint32(datOff)+attrLen > uint32(len(dat)) { - return attrs, errorspkg.New("truncated results; attrBuf too small") + return attrs, errors.New("truncated results; attrBuf too small") } end := uint32(datOff) + attrLen attrs = append(attrs, dat[datOff:end]) @@ -162,6 +142,8 @@ func getAttrList(path string, attrList attrList, attrBuf []byte, options uint) ( return } +//sys getattrlist(path *byte, list unsafe.Pointer, buf unsafe.Pointer, size uintptr, options int) (err error) + //sysnb pipe() (r int, w int, err error) func Pipe(p []int) (err error) { @@ -179,12 +161,113 @@ func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { _p0 = unsafe.Pointer(&buf[0]) bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) } - r0, _, e1 := Syscall(SYS_GETFSSTAT64, uintptr(_p0), bufsize, uintptr(flags)) - n = int(r0) - if e1 != 0 { - err = e1 + return getfsstat(_p0, bufsize, flags) +} + +func xattrPointer(dest []byte) *byte { + // It's only when dest is set to NULL that the OS X implementations of + // getxattr() and listxattr() return the current sizes of the named attributes. + // An empty byte array is not sufficient. To maintain the same behaviour as the + // linux implementation, we wrap around the system calls and pass in NULL when + // dest is empty. + var destp *byte + if len(dest) > 0 { + destp = &dest[0] } - return + return destp +} + +//sys getxattr(path string, attr string, dest *byte, size int, position uint32, options int) (sz int, err error) + +func Getxattr(path string, attr string, dest []byte) (sz int, err error) { + return getxattr(path, attr, xattrPointer(dest), len(dest), 0, 0) +} + +func Lgetxattr(link string, attr string, dest []byte) (sz int, err error) { + return getxattr(link, attr, xattrPointer(dest), len(dest), 0, XATTR_NOFOLLOW) +} + +//sys fgetxattr(fd int, attr string, dest *byte, size int, position uint32, options int) (sz int, err error) + +func Fgetxattr(fd int, attr string, dest []byte) (sz int, err error) { + return fgetxattr(fd, attr, xattrPointer(dest), len(dest), 0, 0) +} + +//sys setxattr(path string, attr string, data *byte, size int, position uint32, options int) (err error) + +func Setxattr(path string, attr string, data []byte, flags int) (err error) { + // The parameters for the OS X implementation vary slightly compared to the + // linux system call, specifically the position parameter: + // + // linux: + // int setxattr( + // const char *path, + // const char *name, + // const void *value, + // size_t size, + // int flags + // ); + // + // darwin: + // int setxattr( + // const char *path, + // const char *name, + // void *value, + // size_t size, + // u_int32_t position, + // int options + // ); + // + // position specifies the offset within the extended attribute. In the + // current implementation, only the resource fork extended attribute makes + // use of this argument. For all others, position is reserved. We simply + // default to setting it to zero. + return setxattr(path, attr, xattrPointer(data), len(data), 0, flags) +} + +func Lsetxattr(link string, attr string, data []byte, flags int) (err error) { + return setxattr(link, attr, xattrPointer(data), len(data), 0, flags|XATTR_NOFOLLOW) +} + +//sys fsetxattr(fd int, attr string, data *byte, size int, position uint32, options int) (err error) + +func Fsetxattr(fd int, attr string, data []byte, flags int) (err error) { + return fsetxattr(fd, attr, xattrPointer(data), len(data), 0, 0) +} + +//sys removexattr(path string, attr string, options int) (err error) + +func Removexattr(path string, attr string) (err error) { + // We wrap around and explicitly zero out the options provided to the OS X + // implementation of removexattr, we do so for interoperability with the + // linux variant. + return removexattr(path, attr, 0) +} + +func Lremovexattr(link string, attr string) (err error) { + return removexattr(link, attr, XATTR_NOFOLLOW) +} + +//sys fremovexattr(fd int, attr string, options int) (err error) + +func Fremovexattr(fd int, attr string) (err error) { + return fremovexattr(fd, attr, 0) +} + +//sys listxattr(path string, dest *byte, size int, options int) (sz int, err error) + +func Listxattr(path string, dest []byte) (sz int, err error) { + return listxattr(path, xattrPointer(dest), len(dest), 0) +} + +func Llistxattr(link string, dest []byte) (sz int, err error) { + return listxattr(link, xattrPointer(dest), len(dest), XATTR_NOFOLLOW) +} + +//sys flistxattr(fd int, dest *byte, size int, options int) (sz int, err error) + +func Flistxattr(fd int, dest []byte) (sz int, err error) { + return flistxattr(fd, xattrPointer(dest), len(dest), 0) } func setattrlistTimes(path string, times []Timespec, flags int) error { @@ -203,21 +286,16 @@ func setattrlistTimes(path string, times []Timespec, flags int) error { if flags&AT_SYMLINK_NOFOLLOW != 0 { options |= FSOPT_NOFOLLOW } - _, _, e1 := Syscall6( - SYS_SETATTRLIST, - uintptr(unsafe.Pointer(_p0)), - uintptr(unsafe.Pointer(&attrList)), - uintptr(unsafe.Pointer(&attributes)), - uintptr(unsafe.Sizeof(attributes)), - uintptr(options), - 0, - ) - if e1 != 0 { - return e1 - } - return nil + return setattrlist( + _p0, + unsafe.Pointer(&attrList), + unsafe.Pointer(&attributes), + unsafe.Sizeof(attributes), + options) } +//sys setattrlist(path *byte, list unsafe.Pointer, buf unsafe.Pointer, size uintptr, options int) (err error) + func utimensat(dirfd int, path string, times *[2]Timespec, flags int) error { // Darwin doesn't support SYS_UTIMENSAT return ENOSYS @@ -242,11 +320,11 @@ func IoctlSetInt(fd int, req uint, value int) error { return ioctl(fd, req, uintptr(value)) } -func IoctlSetWinsize(fd int, req uint, value *Winsize) error { +func ioctlSetWinsize(fd int, req uint, value *Winsize) error { return ioctl(fd, req, uintptr(unsafe.Pointer(value))) } -func IoctlSetTermios(fd int, req uint, value *Termios) error { +func ioctlSetTermios(fd int, req uint, value *Termios) error { return ioctl(fd, req, uintptr(unsafe.Pointer(value))) } @@ -270,6 +348,64 @@ func IoctlGetTermios(fd int, req uint) (*Termios, error) { return &value, err } +func Uname(uname *Utsname) error { + mib := []_C_int{CTL_KERN, KERN_OSTYPE} + n := unsafe.Sizeof(uname.Sysname) + if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil { + return err + } + + mib = []_C_int{CTL_KERN, KERN_HOSTNAME} + n = unsafe.Sizeof(uname.Nodename) + if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil { + return err + } + + mib = []_C_int{CTL_KERN, KERN_OSRELEASE} + n = unsafe.Sizeof(uname.Release) + if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil { + return err + } + + mib = []_C_int{CTL_KERN, KERN_VERSION} + n = unsafe.Sizeof(uname.Version) + if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil { + return err + } + + // The version might have newlines or tabs in it, convert them to + // spaces. + for i, b := range uname.Version { + if b == '\n' || b == '\t' { + if i == len(uname.Version)-1 { + uname.Version[i] = 0 + } else { + uname.Version[i] = ' ' + } + } + } + + mib = []_C_int{CTL_HW, HW_MACHINE} + n = unsafe.Sizeof(uname.Machine) + if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil { + return err + } + + return nil +} + +func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { + if raceenabled { + raceReleaseMerge(unsafe.Pointer(&ioSync)) + } + var length = int64(count) + err = sendfile(infd, outfd, *offset, &length, nil, 0) + written = int(length) + return +} + +//sys sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) + /* * Exposed directly */ @@ -280,6 +416,7 @@ func IoctlGetTermios(fd int, req uint) (*Termios, 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 ClockGettime(clockid int32, time *Timespec) (err error) //sys Close(fd int) (err error) //sys Dup(fd int) (nfd int, err error) //sys Dup2(from int, to int) (err error) @@ -294,11 +431,8 @@ func IoctlGetTermios(fd int, req uint) (*Termios, error) { //sys Fchownat(dirfd int, path string, uid int, gid int, flags 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_FSTAT64 -//sys Fstatfs(fd int, stat *Statfs_t) (err error) = SYS_FSTATFS64 //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_GETDIRENTRIES64 //sys Getdtablesize() (size int) //sysnb Getegid() (egid int) //sysnb Geteuid() (uid int) @@ -318,7 +452,6 @@ func IoctlGetTermios(fd int, req uint) (*Termios, error) { //sys Link(path string, link string) (err error) //sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error) //sys Listen(s int, backlog int) (err error) -//sys Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64 //sys Mkdir(path string, mode uint32) (err error) //sys Mkdirat(dirfd int, path string, mode uint32) (err error) //sys Mkfifo(path string, mode uint32) (err error) @@ -350,8 +483,6 @@ func IoctlGetTermios(fd int, req uint) (*Termios, 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_STAT64 -//sys Statfs(path string, stat *Statfs_t) (err error) = SYS_STATFS64 //sys Symlink(path string, link string) (err error) //sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) //sys Sync() (err error) @@ -411,14 +542,6 @@ func IoctlGetTermios(fd int, req uint) (*Termios, error) { // Watchevent // Waitevent // Modwatch -// Getxattr -// Fgetxattr -// Setxattr -// Fsetxattr -// Removexattr -// Fremovexattr -// Listxattr -// Flistxattr // Fsctl // Initgroups // Posix_spawn |