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- package unix
- import (
- "errors"
- "syscall"
- "unsafe"
- )
- const ImplementsGetwd = true
- func Getwd() (string, error) {
- buf := make([]byte, 2048)
- attrs, err := getAttrList(".", attrList{CommonAttr: attrCmnFullpath}, buf, 0)
- if err == nil && len(attrs) == 1 && len(attrs[0]) >= 2 {
- wd := string(attrs[0])
-
-
- if wd[0] == '/' && wd[len(wd)-1] == 0 {
- return wd[:len(wd)-1], nil
- }
- }
-
-
- return "", ENOTSUP
- }
- type SockaddrDatalink struct {
- Len uint8
- Family uint8
- Index uint16
- Type uint8
- Nlen uint8
- Alen uint8
- Slen uint8
- Data [12]int8
- raw RawSockaddrDatalink
- }
- func nametomib(name string) (mib []_C_int, err error) {
- const siz = unsafe.Sizeof(mib[0])
-
-
-
-
-
-
-
- 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
- }
-
-
- 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{}.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))
- }
- 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) }
- const (
- attrBitMapCount = 5
- attrCmnFullpath = 0x08000000
- )
- type attrList struct {
- bitmapCount uint16
- _ uint16
- CommonAttr uint32
- VolAttr uint32
- DirAttr uint32
- FileAttr uint32
- Forkattr uint32
- }
- func getAttrList(path string, attrList attrList, attrBuf []byte, options uint) (attrs [][]byte, err error) {
- if len(attrBuf) < 4 {
- return nil, errors.New("attrBuf too small")
- }
- attrList.bitmapCount = attrBitMapCount
- var _p0 *byte
- _p0, err = BytePtrFromString(path)
- if err != nil {
- return nil, err
- }
- 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]))
-
-
-
- dat := attrBuf
- if int(size) < len(attrBuf) {
- dat = dat[:size]
- }
- dat = dat[4:]
- for i := uint32(0); int(i) < len(dat); {
- header := dat[i:]
- if len(header) < 8 {
- 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, errors.New("truncated results; attrBuf too small")
- }
- end := uint32(datOff) + attrLen
- attrs = append(attrs, dat[datOff:end])
- i = end
- if r := i % 4; r != 0 {
- i += (4 - r)
- }
- }
- return
- }
- func Pipe(p []int) (err error) {
- if len(p) != 2 {
- return EINVAL
- }
- p[0], p[1], err = pipe()
- 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))
- }
- return getfsstat(_p0, bufsize, flags)
- }
- func xattrPointer(dest []byte) *byte {
-
-
-
-
-
- var destp *byte
- if len(dest) > 0 {
- destp = &dest[0]
- }
- return destp
- }
- 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)
- }
- func Fgetxattr(fd int, attr string, dest []byte) (sz int, err error) {
- return fgetxattr(fd, attr, xattrPointer(dest), len(dest), 0, 0)
- }
- func Setxattr(path string, attr string, data []byte, flags int) (err error) {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- 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)
- }
- func Fsetxattr(fd int, attr string, data []byte, flags int) (err error) {
- return fsetxattr(fd, attr, xattrPointer(data), len(data), 0, 0)
- }
- func Removexattr(path string, attr string) (err error) {
-
-
-
- return removexattr(path, attr, 0)
- }
- func Lremovexattr(link string, attr string) (err error) {
- return removexattr(link, attr, XATTR_NOFOLLOW)
- }
- func Fremovexattr(fd int, attr string) (err error) {
- return fremovexattr(fd, attr, 0)
- }
- 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)
- }
- 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 {
- _p0, err := BytePtrFromString(path)
- if err != nil {
- return err
- }
- var attrList attrList
- attrList.bitmapCount = ATTR_BIT_MAP_COUNT
- attrList.CommonAttr = ATTR_CMN_MODTIME | ATTR_CMN_ACCTIME
-
- attributes := [2]Timespec{times[1], times[0]}
- options := 0
- if flags&AT_SYMLINK_NOFOLLOW != 0 {
- options |= FSOPT_NOFOLLOW
- }
- return setattrlist(
- _p0,
- unsafe.Pointer(&attrList),
- unsafe.Pointer(&attributes),
- unsafe.Sizeof(attributes),
- options)
- }
- func utimensat(dirfd int, path string, times *[2]Timespec, flags int) error {
-
- return ENOSYS
- }
- func Kill(pid int, signum syscall.Signal) (err error) { return kill(pid, int(signum), 1) }
- 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
- }
-
-
- 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
- }
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