diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/syscall_linux.go')
| -rw-r--r-- | vendor/golang.org/x/sys/unix/syscall_linux.go | 92 |
1 files changed, 66 insertions, 26 deletions
diff --git a/vendor/golang.org/x/sys/unix/syscall_linux.go b/vendor/golang.org/x/sys/unix/syscall_linux.go index f432b0684..d251dafae 100644 --- a/vendor/golang.org/x/sys/unix/syscall_linux.go +++ b/vendor/golang.org/x/sys/unix/syscall_linux.go @@ -14,6 +14,7 @@ package unix import ( "encoding/binary" "syscall" + "time" "unsafe" ) @@ -249,6 +250,13 @@ func Getwd() (wd string, err error) { if n < 1 || n > len(buf) || buf[n-1] != 0 { return "", EINVAL } + // In some cases, Linux can return a path that starts with the + // "(unreachable)" prefix, which can potentially be a valid relative + // path. To work around that, return ENOENT if path is not absolute. + if buf[0] != '/' { + return "", ENOENT + } + return string(buf[0 : n-1]), nil } @@ -358,6 +366,8 @@ func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, return } +//sys Waitid(idType int, id int, info *Siginfo, options int, rusage *Rusage) (err error) + func Mkfifo(path string, mode uint32) error { return Mknod(path, mode|S_IFIFO, 0) } @@ -1489,10 +1499,9 @@ func KeyctlRestrictKeyring(ringid int, keyType string, restriction string) error //sys keyctlRestrictKeyringByType(cmd int, arg2 int, keyType string, restriction string) (err error) = SYS_KEYCTL //sys keyctlRestrictKeyring(cmd int, arg2 int) (err error) = SYS_KEYCTL -func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) { +func recvmsgRaw(fd int, p, oob []byte, flags int, rsa *RawSockaddrAny) (n, oobn int, recvflags int, err error) { var msg Msghdr - var rsa RawSockaddrAny - msg.Name = (*byte)(unsafe.Pointer(&rsa)) + msg.Name = (*byte)(unsafe.Pointer(rsa)) msg.Namelen = uint32(SizeofSockaddrAny) var iov Iovec if len(p) > 0 { @@ -1523,28 +1532,10 @@ func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from } oobn = int(msg.Controllen) recvflags = int(msg.Flags) - // source address is only specified if the socket is unconnected - if rsa.Addr.Family != AF_UNSPEC { - from, err = anyToSockaddr(fd, &rsa) - } - return -} - -func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) { - _, err = SendmsgN(fd, p, oob, to, flags) return } -func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) { - var ptr unsafe.Pointer - var salen _Socklen - if to != nil { - var err error - ptr, salen, err = to.sockaddr() - if err != nil { - return 0, err - } - } +func sendmsgN(fd int, p, oob []byte, ptr unsafe.Pointer, salen _Socklen, flags int) (n int, err error) { var msg Msghdr msg.Name = (*byte)(ptr) msg.Namelen = uint32(salen) @@ -1838,6 +1829,9 @@ func Dup2(oldfd, newfd int) error { //sys Fremovexattr(fd int, attr string) (err error) //sys Fsetxattr(fd int, attr string, dest []byte, flags int) (err error) //sys Fsync(fd int) (err error) +//sys Fsmount(fd int, flags int, mountAttrs int) (fsfd int, err error) +//sys Fsopen(fsName string, flags int) (fd int, err error) +//sys Fspick(dirfd int, pathName string, flags int) (fd int, err error) //sys Getdents(fd int, buf []byte) (n int, err error) = SYS_GETDENTS64 //sysnb Getpgid(pid int) (pgid int, err error) @@ -1868,7 +1862,9 @@ func Getpgrp() (pid int) { //sys MemfdCreate(name string, flags int) (fd int, err error) //sys Mkdirat(dirfd int, path string, mode uint32) (err error) //sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) +//sys MoveMount(fromDirfd int, fromPathName string, toDirfd int, toPathName string, flags int) (err error) //sys Nanosleep(time *Timespec, leftover *Timespec) (err error) +//sys OpenTree(dfd int, fileName string, flags uint) (r int, err error) //sys PerfEventOpen(attr *PerfEventAttr, pid int, cpu int, groupFd int, flags int) (fd int, err error) //sys PivotRoot(newroot string, putold string) (err error) = SYS_PIVOT_ROOT //sysnb Prlimit(pid int, resource int, newlimit *Rlimit, old *Rlimit) (err error) = SYS_PRLIMIT64 @@ -2193,7 +2189,7 @@ func Faccessat(dirfd int, path string, mode uint32, flags int) (err error) { gid = Getgid() } - if uint32(gid) == st.Gid || isGroupMember(gid) { + if uint32(gid) == st.Gid || isGroupMember(int(st.Gid)) { fmode = (st.Mode >> 3) & 7 } else { fmode = st.Mode & 7 @@ -2308,17 +2304,63 @@ type RemoteIovec struct { //sys PidfdOpen(pid int, flags int) (fd int, err error) = SYS_PIDFD_OPEN //sys PidfdGetfd(pidfd int, targetfd int, flags int) (fd int, err error) = SYS_PIDFD_GETFD +//sys PidfdSendSignal(pidfd int, sig Signal, info *Siginfo, flags int) (err error) = SYS_PIDFD_SEND_SIGNAL //sys shmat(id int, addr uintptr, flag int) (ret uintptr, err error) //sys shmctl(id int, cmd int, buf *SysvShmDesc) (result int, err error) //sys shmdt(addr uintptr) (err error) //sys shmget(key int, size int, flag int) (id int, err error) +//sys getitimer(which int, currValue *Itimerval) (err error) +//sys setitimer(which int, newValue *Itimerval, oldValue *Itimerval) (err error) + +// MakeItimerval creates an Itimerval from interval and value durations. +func MakeItimerval(interval, value time.Duration) Itimerval { + return Itimerval{ + Interval: NsecToTimeval(interval.Nanoseconds()), + Value: NsecToTimeval(value.Nanoseconds()), + } +} + +// A value which may be passed to the which parameter for Getitimer and +// Setitimer. +type ItimerWhich int + +// Possible which values for Getitimer and Setitimer. +const ( + ItimerReal ItimerWhich = ITIMER_REAL + ItimerVirtual ItimerWhich = ITIMER_VIRTUAL + ItimerProf ItimerWhich = ITIMER_PROF +) + +// Getitimer wraps getitimer(2) to return the current value of the timer +// specified by which. +func Getitimer(which ItimerWhich) (Itimerval, error) { + var it Itimerval + if err := getitimer(int(which), &it); err != nil { + return Itimerval{}, err + } + + return it, nil +} + +// Setitimer wraps setitimer(2) to arm or disarm the timer specified by which. +// It returns the previous value of the timer. +// +// If the Itimerval argument is the zero value, the timer will be disarmed. +func Setitimer(which ItimerWhich, it Itimerval) (Itimerval, error) { + var prev Itimerval + if err := setitimer(int(which), &it, &prev); err != nil { + return Itimerval{}, err + } + + return prev, nil +} + /* * Unimplemented */ // AfsSyscall -// Alarm // ArchPrctl // Brk // ClockNanosleep @@ -2334,7 +2376,6 @@ type RemoteIovec struct { // GetMempolicy // GetRobustList // GetThreadArea -// Getitimer // Getpmsg // IoCancel // IoDestroy @@ -2412,5 +2453,4 @@ type RemoteIovec struct { // Vfork // Vhangup // Vserver -// Waitid // _Sysctl |