unix

Documentation

Index

• Constants
• func CopyFileRange(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)
• func Eaccess(path string, mode uint32) error
• func Fcntl(fd int, cmd int, arg int) (int, error)
• func Fstatat(dirfd int, path string, stat *syscall.Stat_t, flags int) error
• func GetRandom(p []byte, flags GetRandomFlag) (n int, err error)
• func HasNonblockFlag(flag int) bool
• func IsNonblock(fd int) (nonblocking bool, err error)
• func KernelVersion() (major, minor int)
• func Mkdirat(dirfd int, path string, mode uint32) error
• func Openat(dirfd int, path string, flags int, perm uint32) (int, error)
• func PidFDOpen(pid, flags int) (uintptr, error)
• func PidFDSendSignal(pidfd uintptr, s syscall.Signal) error
• func Readlinkat(dirfd int, path string, buf []byte) (int, error)
• func RecvfromInet4(fd int, p []byte, flags int, from *syscall.SockaddrInet4) (int, error)
• func RecvfromInet6(fd int, p []byte, flags int, from *syscall.SockaddrInet6) (n int, err error)
• func RecvmsgInet4(fd int, p, oob []byte, flags int, from *syscall.SockaddrInet4) (n, oobn int, recvflags int, err error)
• func RecvmsgInet6(fd int, p, oob []byte, flags int, from *syscall.SockaddrInet6) (n, oobn int, recvflags int, err error)
• func SendmsgNInet4(fd int, p, oob []byte, to *syscall.SockaddrInet4, flags int) (n int, err error)
• func SendmsgNInet6(fd int, p, oob []byte, to *syscall.SockaddrInet6, flags int) (n int, err error)
• func SendtoInet4(fd int, p []byte, flags int, to *syscall.SockaddrInet4) (err error)
• func SendtoInet6(fd int, p []byte, flags int, to *syscall.SockaddrInet6) (err error)
• func Tcsetpgrp(fd int, pgid int32) (err error)
• func Unlinkat(dirfd int, path string, flags int) error
• type GetRandomFlag
• type SiginfoChild
  • func (s *SiginfoChild) WaitStatus() (ws syscall.WaitStatus)

Constants

const (
	AT_EACCESS          = 0x200
	AT_FDCWD            = -0x64
	AT_REMOVEDIR        = 0x200
	AT_SYMLINK_NOFOLLOW = 0x100

	UTIME_OMIT = 0x3ffffffe
)

const (
	R_OK = 0x4
	W_OK = 0x2
	X_OK = 0x1

	// NoFollowErrno is the error returned from open/openat called with
	// O_NOFOLLOW flag, when the trailing component (basename) of the path
	// is a symbolic link.
	NoFollowErrno = noFollowErrno
)

Functions

func CopyFileRange

func CopyFileRange(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)

func Eaccess

func Eaccess(path string, mode uint32) error

func Fcntl

func Fcntl(fd int, cmd int, arg int) (int, error)

func Fstatat

func Fstatat(dirfd int, path string, stat *syscall.Stat_t, flags int) error

func GetRandom

func GetRandom(p []byte, flags GetRandomFlag) (n int, err error)

GetRandom calls the getrandom system call.

func HasNonblockFlag

func HasNonblockFlag(flag int) bool

func IsNonblock

func IsNonblock(fd int) (nonblocking bool, err error)

func KernelVersion

func KernelVersion() (major, minor int)

KernelVersion returns major and minor kernel version numbers parsed from the syscall.Uname's Release field, or (0, 0) if the version can't be obtained or parsed.

func Mkdirat

func Mkdirat(dirfd int, path string, mode uint32) error

func Openat

func Openat(dirfd int, path string, flags int, perm uint32) (int, error)

func PidFDOpen

func PidFDOpen(pid, flags int) (uintptr, error)

func PidFDSendSignal

func PidFDSendSignal(pidfd uintptr, s syscall.Signal) error

func Readlinkat

func Readlinkat(dirfd int, path string, buf []byte) (int, error)

func RecvfromInet4

func RecvfromInet4(fd int, p []byte, flags int, from *syscall.SockaddrInet4) (int, error)

func RecvfromInet6

func RecvfromInet6(fd int, p []byte, flags int, from *syscall.SockaddrInet6) (n int, err error)

func RecvmsgInet4

func RecvmsgInet4(fd int, p, oob []byte, flags int, from *syscall.SockaddrInet4) (n, oobn int, recvflags int, err error)

func RecvmsgInet6

func RecvmsgInet6(fd int, p, oob []byte, flags int, from *syscall.SockaddrInet6) (n, oobn int, recvflags int, err error)

func SendmsgNInet4

func SendmsgNInet4(fd int, p, oob []byte, to *syscall.SockaddrInet4, flags int) (n int, err error)

func SendmsgNInet6

func SendmsgNInet6(fd int, p, oob []byte, to *syscall.SockaddrInet6, flags int) (n int, err error)

func SendtoInet4

func SendtoInet4(fd int, p []byte, flags int, to *syscall.SockaddrInet4) (err error)

func SendtoInet6

func SendtoInet6(fd int, p []byte, flags int, to *syscall.SockaddrInet6) (err error)

func Tcsetpgrp

func Tcsetpgrp(fd int, pgid int32) (err error)

func Unlinkat

func Unlinkat(dirfd int, path string, flags int) error

Types

type GetRandomFlag

type GetRandomFlag uintptr

GetRandomFlag is a flag supported by the getrandom system call.

const (
	// GRND_NONBLOCK means return EAGAIN rather than blocking.
	GRND_NONBLOCK GetRandomFlag = 0x0001

	// GRND_RANDOM means use the /dev/random pool instead of /dev/urandom.
	GRND_RANDOM GetRandomFlag = 0x0002
)

type SiginfoChild

type SiginfoChild struct {
	Signo int32

	Pid    int32
	Uid    uint32
	Status int32
	// contains filtered or unexported fields
}

SiginfoChild is a struct filled in by Linux waitid syscall. In C, siginfo_t contains a union with multiple members; this struct corresponds to one used when Signo is SIGCHLD.

NOTE fields are exported to be used by TestSiginfoChildLayout.

func (*SiginfoChild) WaitStatus

func (s *SiginfoChild) WaitStatus() (ws syscall.WaitStatus)

WaitStatus converts SiginfoChild, as filled in by the waitid syscall, to syscall.WaitStatus.