From 8db41da676ac8368ef7c2549d56239a5ff5eedde Mon Sep 17 00:00:00 2001 From: Rutger Broekhoff Date: Tue, 2 Jan 2024 18:56:31 +0100 Subject: Delete vendor directory --- vendor/golang.org/x/sys/unix/syscall_solaris.go | 1104 ----------------------- 1 file changed, 1104 deletions(-) delete mode 100644 vendor/golang.org/x/sys/unix/syscall_solaris.go (limited to 'vendor/golang.org/x/sys/unix/syscall_solaris.go') diff --git a/vendor/golang.org/x/sys/unix/syscall_solaris.go b/vendor/golang.org/x/sys/unix/syscall_solaris.go deleted file mode 100644 index 21974af..0000000 --- a/vendor/golang.org/x/sys/unix/syscall_solaris.go +++ /dev/null @@ -1,1104 +0,0 @@ -// Copyright 2009 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. - -// Solaris 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_solaris.go or syscall_unix.go. - -package unix - -import ( - "fmt" - "os" - "runtime" - "sync" - "syscall" - "unsafe" -) - -// Implemented in runtime/syscall_solaris.go. -type syscallFunc uintptr - -func rawSysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) -func sysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) - -// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. -type SockaddrDatalink struct { - Family uint16 - Index uint16 - Type uint8 - Nlen uint8 - Alen uint8 - Slen uint8 - Data [244]int8 - raw RawSockaddrDatalink -} - -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) { - reclen, ok := direntReclen(buf) - if !ok { - return 0, false - } - return reclen - uint64(unsafe.Offsetof(Dirent{}.Name)), true -} - -//sysnb pipe(p *[2]_C_int) (n int, err error) - -func Pipe(p []int) (err error) { - if len(p) != 2 { - return EINVAL - } - var pp [2]_C_int - n, err := pipe(&pp) - if n != 0 { - return err - } - if err == nil { - p[0] = int(pp[0]) - p[1] = int(pp[1]) - } - return nil -} - -//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) - if err == nil { - p[0] = int(pp[0]) - p[1] = int(pp[1]) - } - return err -} - -func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) { - if sa.Port < 0 || sa.Port > 0xFFFF { - return nil, 0, EINVAL - } - sa.raw.Family = AF_INET - p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) - p[0] = byte(sa.Port >> 8) - p[1] = byte(sa.Port) - sa.raw.Addr = sa.Addr - return unsafe.Pointer(&sa.raw), SizeofSockaddrInet4, nil -} - -func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) { - if sa.Port < 0 || sa.Port > 0xFFFF { - return nil, 0, EINVAL - } - sa.raw.Family = AF_INET6 - p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) - p[0] = byte(sa.Port >> 8) - p[1] = byte(sa.Port) - sa.raw.Scope_id = sa.ZoneId - sa.raw.Addr = sa.Addr - return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil -} - -func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) { - name := sa.Name - n := len(name) - if n >= len(sa.raw.Path) { - return nil, 0, EINVAL - } - sa.raw.Family = AF_UNIX - for i := 0; i < n; i++ { - sa.raw.Path[i] = int8(name[i]) - } - // length is family (uint16), name, NUL. - sl := _Socklen(2) - if n > 0 { - sl += _Socklen(n) + 1 - } - if sa.raw.Path[0] == '@' || (sa.raw.Path[0] == 0 && sl > 3) { - // Check sl > 3 so we don't change unnamed socket behavior. - sa.raw.Path[0] = 0 - // Don't count trailing NUL for abstract address. - sl-- - } - - return unsafe.Pointer(&sa.raw), sl, nil -} - -//sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getsockname - -func Getsockname(fd int) (sa Sockaddr, err error) { - var rsa RawSockaddrAny - var len _Socklen = SizeofSockaddrAny - if err = getsockname(fd, &rsa, &len); err != nil { - return - } - return anyToSockaddr(fd, &rsa) -} - -// GetsockoptString returns the string value of the socket option opt for the -// socket associated with fd at the given socket level. -func GetsockoptString(fd, level, opt int) (string, error) { - buf := make([]byte, 256) - vallen := _Socklen(len(buf)) - err := getsockopt(fd, level, opt, unsafe.Pointer(&buf[0]), &vallen) - if err != nil { - return "", err - } - return ByteSliceToString(buf[:vallen]), nil -} - -const ImplementsGetwd = true - -//sys Getcwd(buf []byte) (n int, err error) - -func Getwd() (wd string, err error) { - var buf [PathMax]byte - // Getcwd will return an error if it failed for any reason. - _, err = Getcwd(buf[0:]) - if err != nil { - return "", err - } - n := clen(buf[:]) - if n < 1 { - return "", EINVAL - } - return string(buf[:n]), nil -} - -/* - * Wrapped - */ - -//sysnb getgroups(ngid int, gid *_Gid_t) (n int, err error) -//sysnb setgroups(ngid int, gid *_Gid_t) (err error) - -func Getgroups() (gids []int, err error) { - n, err := getgroups(0, nil) - // Check for error and sanity check group count. Newer versions of - // Solaris allow up to 1024 (NGROUPS_MAX). - if n < 0 || n > 1024 { - if err != nil { - return nil, err - } - return nil, EINVAL - } else if n == 0 { - return nil, nil - } - - a := make([]_Gid_t, n) - n, err = getgroups(n, &a[0]) - if n == -1 { - return nil, err - } - gids = make([]int, n) - for i, v := range a[0:n] { - gids[i] = int(v) - } - return -} - -func Setgroups(gids []int) (err error) { - if len(gids) == 0 { - return setgroups(0, nil) - } - - a := make([]_Gid_t, len(gids)) - for i, v := range gids { - a[i] = _Gid_t(v) - } - return setgroups(len(a), &a[0]) -} - -// ReadDirent reads directory entries from fd and writes them into buf. -func ReadDirent(fd int, buf []byte) (n int, err error) { - // Final argument is (basep *uintptr) and the syscall doesn't take nil. - // TODO(rsc): Can we use a single global basep for all calls? - return Getdents(fd, buf, new(uintptr)) -} - -// Wait status is 7 bits at bottom, either 0 (exited), -// 0x7F (stopped), or a signal number that caused an exit. -// The 0x80 bit is whether there was a core dump. -// An extra number (exit code, signal causing a stop) -// is in the high bits. - -type WaitStatus uint32 - -const ( - mask = 0x7F - core = 0x80 - shift = 8 - - exited = 0 - stopped = 0x7F -) - -func (w WaitStatus) Exited() bool { return w&mask == exited } - -func (w WaitStatus) ExitStatus() int { - if w&mask != exited { - return -1 - } - return int(w >> shift) -} - -func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 } - -func (w WaitStatus) Signal() syscall.Signal { - sig := syscall.Signal(w & mask) - if sig == stopped || sig == 0 { - return -1 - } - return sig -} - -func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 } - -func (w WaitStatus) Stopped() bool { return w&mask == stopped && syscall.Signal(w>>shift) != SIGSTOP } - -func (w WaitStatus) Continued() bool { return w&mask == stopped && syscall.Signal(w>>shift) == SIGSTOP } - -func (w WaitStatus) StopSignal() syscall.Signal { - if !w.Stopped() { - return -1 - } - return syscall.Signal(w>>shift) & 0xFF -} - -func (w WaitStatus) TrapCause() int { return -1 } - -//sys wait4(pid int32, statusp *_C_int, options int, rusage *Rusage) (wpid int32, err error) - -func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (int, error) { - var status _C_int - rpid, err := wait4(int32(pid), &status, options, rusage) - wpid := int(rpid) - if wpid == -1 { - return wpid, err - } - if wstatus != nil { - *wstatus = WaitStatus(status) - } - return wpid, nil -} - -//sys gethostname(buf []byte) (n int, err error) - -func Gethostname() (name string, err error) { - var buf [MaxHostNameLen]byte - n, err := gethostname(buf[:]) - if n != 0 { - return "", err - } - n = clen(buf[:]) - if n < 1 { - return "", EFAULT - } - return string(buf[:n]), nil -} - -//sys utimes(path string, times *[2]Timeval) (err error) - -func Utimes(path string, tv []Timeval) (err error) { - if tv == nil { - return utimes(path, nil) - } - if len(tv) != 2 { - return EINVAL - } - return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0]))) -} - -//sys utimensat(fd int, path string, times *[2]Timespec, flag int) (err error) - -func UtimesNano(path string, ts []Timespec) error { - if ts == nil { - return utimensat(AT_FDCWD, path, nil, 0) - } - if len(ts) != 2 { - return EINVAL - } - return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) -} - -func UtimesNanoAt(dirfd int, path string, ts []Timespec, flags int) error { - if ts == nil { - return utimensat(dirfd, path, nil, flags) - } - if len(ts) != 2 { - return EINVAL - } - return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), flags) -} - -//sys fcntl(fd int, cmd int, arg int) (val int, err error) - -// FcntlInt performs a fcntl syscall on fd with the provided command and argument. -func FcntlInt(fd uintptr, cmd, arg int) (int, error) { - valptr, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(arg), 0, 0, 0) - var err error - if errno != 0 { - err = errno - } - return int(valptr), err -} - -// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command. -func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error { - _, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(unsafe.Pointer(lk)), 0, 0, 0) - if e1 != 0 { - return e1 - } - return nil -} - -//sys futimesat(fildes int, path *byte, times *[2]Timeval) (err error) - -func Futimesat(dirfd int, path string, tv []Timeval) error { - pathp, err := BytePtrFromString(path) - if err != nil { - return err - } - if tv == nil { - return futimesat(dirfd, pathp, nil) - } - if len(tv) != 2 { - return EINVAL - } - return futimesat(dirfd, pathp, (*[2]Timeval)(unsafe.Pointer(&tv[0]))) -} - -// Solaris doesn't have an futimes function because it allows NULL to be -// specified as the path for futimesat. However, Go doesn't like -// NULL-style string interfaces, so this simple wrapper is provided. -func Futimes(fd int, tv []Timeval) error { - if tv == nil { - return futimesat(fd, nil, nil) - } - if len(tv) != 2 { - return EINVAL - } - return futimesat(fd, nil, (*[2]Timeval)(unsafe.Pointer(&tv[0]))) -} - -func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { - switch rsa.Addr.Family { - case AF_UNIX: - pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa)) - sa := new(SockaddrUnix) - // Assume path ends at NUL. - // This is not technically the Solaris semantics for - // abstract Unix domain sockets -- they are supposed - // to be uninterpreted fixed-size binary blobs -- but - // everyone uses this convention. - n := 0 - for n < len(pp.Path) && pp.Path[n] != 0 { - n++ - } - sa.Name = string(unsafe.Slice((*byte)(unsafe.Pointer(&pp.Path[0])), n)) - return sa, nil - - case AF_INET: - pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa)) - sa := new(SockaddrInet4) - p := (*[2]byte)(unsafe.Pointer(&pp.Port)) - sa.Port = int(p[0])<<8 + int(p[1]) - sa.Addr = pp.Addr - return sa, nil - - case AF_INET6: - pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa)) - sa := new(SockaddrInet6) - p := (*[2]byte)(unsafe.Pointer(&pp.Port)) - sa.Port = int(p[0])<<8 + int(p[1]) - sa.ZoneId = pp.Scope_id - sa.Addr = pp.Addr - return sa, nil - } - return nil, EAFNOSUPPORT -} - -//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) = libsocket.accept - -func Accept(fd int) (nfd int, sa Sockaddr, err error) { - var rsa RawSockaddrAny - var len _Socklen = SizeofSockaddrAny - nfd, err = accept(fd, &rsa, &len) - if nfd == -1 { - return - } - sa, err = anyToSockaddr(fd, &rsa) - if err != nil { - Close(nfd) - nfd = 0 - } - return -} - -//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_recvmsg - -func recvmsgRaw(fd int, iov []Iovec, oob []byte, flags int, rsa *RawSockaddrAny) (n, oobn int, recvflags int, err error) { - var msg Msghdr - msg.Name = (*byte)(unsafe.Pointer(rsa)) - msg.Namelen = uint32(SizeofSockaddrAny) - var dummy byte - if len(oob) > 0 { - // receive at least one normal byte - if emptyIovecs(iov) { - var iova [1]Iovec - iova[0].Base = &dummy - iova[0].SetLen(1) - iov = iova[:] - } - msg.Accrightslen = int32(len(oob)) - } - if len(iov) > 0 { - msg.Iov = &iov[0] - msg.SetIovlen(len(iov)) - } - if n, err = recvmsg(fd, &msg, flags); n == -1 { - return - } - oobn = int(msg.Accrightslen) - return -} - -//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_sendmsg - -func sendmsgN(fd int, iov []Iovec, oob []byte, ptr unsafe.Pointer, salen _Socklen, flags int) (n int, err error) { - var msg Msghdr - msg.Name = (*byte)(unsafe.Pointer(ptr)) - msg.Namelen = uint32(salen) - var dummy byte - var empty bool - if len(oob) > 0 { - // send at least one normal byte - empty = emptyIovecs(iov) - if empty { - var iova [1]Iovec - iova[0].Base = &dummy - iova[0].SetLen(1) - iov = iova[:] - } - msg.Accrightslen = int32(len(oob)) - } - if len(iov) > 0 { - msg.Iov = &iov[0] - msg.SetIovlen(len(iov)) - } - if n, err = sendmsg(fd, &msg, flags); err != nil { - return 0, err - } - if len(oob) > 0 && empty { - n = 0 - } - return n, nil -} - -//sys acct(path *byte) (err error) - -func Acct(path string) (err error) { - if len(path) == 0 { - // Assume caller wants to disable accounting. - return acct(nil) - } - - pathp, err := BytePtrFromString(path) - if err != nil { - return err - } - return acct(pathp) -} - -//sys __makedev(version int, major uint, minor uint) (val uint64) - -func Mkdev(major, minor uint32) uint64 { - return __makedev(NEWDEV, uint(major), uint(minor)) -} - -//sys __major(version int, dev uint64) (val uint) - -func Major(dev uint64) uint32 { - return uint32(__major(NEWDEV, dev)) -} - -//sys __minor(version int, dev uint64) (val uint) - -func Minor(dev uint64) uint32 { - return uint32(__minor(NEWDEV, dev)) -} - -/* - * Expose the ioctl function - */ - -//sys ioctlRet(fd int, req int, arg uintptr) (ret int, err error) = libc.ioctl -//sys ioctlPtrRet(fd int, req int, arg unsafe.Pointer) (ret int, err error) = libc.ioctl - -func ioctl(fd int, req int, arg uintptr) (err error) { - _, err = ioctlRet(fd, req, arg) - return err -} - -func ioctlPtr(fd int, req int, arg unsafe.Pointer) (err error) { - _, err = ioctlPtrRet(fd, req, arg) - return err -} - -func IoctlSetTermio(fd int, req int, value *Termio) error { - return ioctlPtr(fd, req, unsafe.Pointer(value)) -} - -func IoctlGetTermio(fd int, req int) (*Termio, error) { - var value Termio - err := ioctlPtr(fd, req, unsafe.Pointer(&value)) - return &value, err -} - -//sys poll(fds *PollFd, nfds int, timeout int) (n int, err error) - -func Poll(fds []PollFd, timeout int) (n int, err error) { - if len(fds) == 0 { - return poll(nil, 0, timeout) - } - return poll(&fds[0], len(fds), timeout) -} - -func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { - if raceenabled { - raceReleaseMerge(unsafe.Pointer(&ioSync)) - } - return sendfile(outfd, infd, offset, count) -} - -/* - * 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 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 Creat(path string, mode uint32) (fd int, err error) -//sys Dup(fd int) (nfd int, err error) -//sys Dup2(oldfd int, newfd int) (err error) -//sys Exit(code int) -//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) -//sys Fchdir(fd int) (err error) -//sys Fchmod(fd int, mode uint32) (err error) -//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) -//sys Fchown(fd int, uid int, gid int) (err error) -//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) -//sys Fdatasync(fd 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 Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) -//sys Fstatvfs(fd int, vfsstat *Statvfs_t) (err error) -//sys Getdents(fd int, buf []byte, basep *uintptr) (n int, err error) -//sysnb Getgid() (gid int) -//sysnb Getpid() (pid int) -//sysnb Getpgid(pid int) (pgid int, err error) -//sysnb Getpgrp() (pgid int, err error) -//sys Geteuid() (euid int) -//sys Getegid() (egid int) -//sys Getppid() (ppid int) -//sys Getpriority(which int, who int) (n 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 Kill(pid int, signum syscall.Signal) (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) = libsocket.__xnet_llisten -//sys Lstat(path string, stat *Stat_t) (err error) -//sys Madvise(b []byte, advice int) (err error) -//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) -//sys Mkfifoat(dirfd int, path string, mode uint32) (err error) -//sys Mknod(path string, mode uint32, dev int) (err error) -//sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) -//sys Mlock(b []byte) (err error) -//sys Mlockall(flags int) (err error) -//sys Mprotect(b []byte, prot int) (err error) -//sys Msync(b []byte, flags int) (err error) -//sys Munlock(b []byte) (err error) -//sys Munlockall() (err error) -//sys Nanosleep(time *Timespec, leftover *Timespec) (err error) -//sys Open(path string, mode int, perm uint32) (fd int, err error) -//sys Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error) -//sys Pathconf(path string, name int) (val int, err error) -//sys Pause() (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 Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) -//sys Rmdir(path string) (err error) -//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = lseek -//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) -//sysnb Setegid(egid int) (err error) -//sysnb Seteuid(euid int) (err error) -//sysnb Setgid(gid int) (err error) -//sys Sethostname(p []byte) (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 Setsid() (pid int, err error) -//sysnb Setuid(uid int) (err error) -//sys Shutdown(s int, how int) (err error) = libsocket.shutdown -//sys Stat(path string, stat *Stat_t) (err error) -//sys Statvfs(path string, vfsstat *Statvfs_t) (err error) -//sys Symlink(path string, link string) (err error) -//sys Sync() (err error) -//sys Sysconf(which int) (n int64, err error) -//sysnb Times(tms *Tms) (ticks uintptr, err error) -//sys Truncate(path string, length int64) (err error) -//sys Fsync(fd int) (err error) -//sys Ftruncate(fd int, length int64) (err error) -//sys Umask(mask int) (oldmask int) -//sysnb Uname(buf *Utsname) (err error) -//sys Unmount(target string, flags int) (err error) = libc.umount -//sys Unlink(path string) (err error) -//sys Unlinkat(dirfd int, path string, flags int) (err error) -//sys Ustat(dev int, ubuf *Ustat_t) (err error) -//sys Utime(path string, buf *Utimbuf) (err error) -//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_bind -//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_connect -//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 sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = libsendfile.sendfile -//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_sendto -//sys socket(domain int, typ int, proto int) (fd int, err error) = libsocket.__xnet_socket -//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) = libsocket.__xnet_socketpair -//sys write(fd int, p []byte) (n int, err error) -//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) = libsocket.__xnet_getsockopt -//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getpeername -//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) = libsocket.setsockopt -//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) = libsocket.recvfrom - -// Event Ports - -type fileObjCookie struct { - fobj *fileObj - cookie interface{} -} - -// EventPort provides a safe abstraction on top of Solaris/illumos Event Ports. -type EventPort struct { - port int - mu sync.Mutex - fds map[uintptr]*fileObjCookie - paths map[string]*fileObjCookie - // The user cookie presents an interesting challenge from a memory management perspective. - // There are two paths by which we can discover that it is no longer in use: - // 1. The user calls port_dissociate before any events fire - // 2. An event fires and we return it to the user - // The tricky situation is if the event has fired in the kernel but - // the user hasn't requested/received it yet. - // If the user wants to port_dissociate before the event has been processed, - // we should handle things gracefully. To do so, we need to keep an extra - // reference to the cookie around until the event is processed - // thus the otherwise seemingly extraneous "cookies" map - // The key of this map is a pointer to the corresponding fCookie - cookies map[*fileObjCookie]struct{} -} - -// PortEvent is an abstraction of the port_event C struct. -// Compare Source against PORT_SOURCE_FILE or PORT_SOURCE_FD -// to see if Path or Fd was the event source. The other will be -// uninitialized. -type PortEvent struct { - Cookie interface{} - Events int32 - Fd uintptr - Path string - Source uint16 - fobj *fileObj -} - -// NewEventPort creates a new EventPort including the -// underlying call to port_create(3c). -func NewEventPort() (*EventPort, error) { - port, err := port_create() - if err != nil { - return nil, err - } - e := &EventPort{ - port: port, - fds: make(map[uintptr]*fileObjCookie), - paths: make(map[string]*fileObjCookie), - cookies: make(map[*fileObjCookie]struct{}), - } - return e, nil -} - -//sys port_create() (n int, err error) -//sys port_associate(port int, source int, object uintptr, events int, user *byte) (n int, err error) -//sys port_dissociate(port int, source int, object uintptr) (n int, err error) -//sys port_get(port int, pe *portEvent, timeout *Timespec) (n int, err error) -//sys port_getn(port int, pe *portEvent, max uint32, nget *uint32, timeout *Timespec) (n int, err error) - -// Close closes the event port. -func (e *EventPort) Close() error { - e.mu.Lock() - defer e.mu.Unlock() - err := Close(e.port) - if err != nil { - return err - } - e.fds = nil - e.paths = nil - e.cookies = nil - return nil -} - -// PathIsWatched checks to see if path is associated with this EventPort. -func (e *EventPort) PathIsWatched(path string) bool { - e.mu.Lock() - defer e.mu.Unlock() - _, found := e.paths[path] - return found -} - -// FdIsWatched checks to see if fd is associated with this EventPort. -func (e *EventPort) FdIsWatched(fd uintptr) bool { - e.mu.Lock() - defer e.mu.Unlock() - _, found := e.fds[fd] - return found -} - -// AssociatePath wraps port_associate(3c) for a filesystem path including -// creating the necessary file_obj from the provided stat information. -func (e *EventPort) AssociatePath(path string, stat os.FileInfo, events int, cookie interface{}) error { - e.mu.Lock() - defer e.mu.Unlock() - if _, found := e.paths[path]; found { - return fmt.Errorf("%v is already associated with this Event Port", path) - } - fCookie, err := createFileObjCookie(path, stat, cookie) - if err != nil { - return err - } - _, err = port_associate(e.port, PORT_SOURCE_FILE, uintptr(unsafe.Pointer(fCookie.fobj)), events, (*byte)(unsafe.Pointer(fCookie))) - if err != nil { - return err - } - e.paths[path] = fCookie - e.cookies[fCookie] = struct{}{} - return nil -} - -// DissociatePath wraps port_dissociate(3c) for a filesystem path. -func (e *EventPort) DissociatePath(path string) error { - e.mu.Lock() - defer e.mu.Unlock() - f, ok := e.paths[path] - if !ok { - return fmt.Errorf("%v is not associated with this Event Port", path) - } - _, err := port_dissociate(e.port, PORT_SOURCE_FILE, uintptr(unsafe.Pointer(f.fobj))) - // If the path is no longer associated with this event port (ENOENT) - // we should delete it from our map. We can still return ENOENT to the caller. - // But we need to save the cookie - if err != nil && err != ENOENT { - return err - } - if err == nil { - // dissociate was successful, safe to delete the cookie - fCookie := e.paths[path] - delete(e.cookies, fCookie) - } - delete(e.paths, path) - return err -} - -// AssociateFd wraps calls to port_associate(3c) on file descriptors. -func (e *EventPort) AssociateFd(fd uintptr, events int, cookie interface{}) error { - e.mu.Lock() - defer e.mu.Unlock() - if _, found := e.fds[fd]; found { - return fmt.Errorf("%v is already associated with this Event Port", fd) - } - fCookie, err := createFileObjCookie("", nil, cookie) - if err != nil { - return err - } - _, err = port_associate(e.port, PORT_SOURCE_FD, fd, events, (*byte)(unsafe.Pointer(fCookie))) - if err != nil { - return err - } - e.fds[fd] = fCookie - e.cookies[fCookie] = struct{}{} - return nil -} - -// DissociateFd wraps calls to port_dissociate(3c) on file descriptors. -func (e *EventPort) DissociateFd(fd uintptr) error { - e.mu.Lock() - defer e.mu.Unlock() - _, ok := e.fds[fd] - if !ok { - return fmt.Errorf("%v is not associated with this Event Port", fd) - } - _, err := port_dissociate(e.port, PORT_SOURCE_FD, fd) - if err != nil && err != ENOENT { - return err - } - if err == nil { - // dissociate was successful, safe to delete the cookie - fCookie := e.fds[fd] - delete(e.cookies, fCookie) - } - delete(e.fds, fd) - return err -} - -func createFileObjCookie(name string, stat os.FileInfo, cookie interface{}) (*fileObjCookie, error) { - fCookie := new(fileObjCookie) - fCookie.cookie = cookie - if name != "" && stat != nil { - fCookie.fobj = new(fileObj) - bs, err := ByteSliceFromString(name) - if err != nil { - return nil, err - } - fCookie.fobj.Name = (*int8)(unsafe.Pointer(&bs[0])) - s := stat.Sys().(*syscall.Stat_t) - fCookie.fobj.Atim.Sec = s.Atim.Sec - fCookie.fobj.Atim.Nsec = s.Atim.Nsec - fCookie.fobj.Mtim.Sec = s.Mtim.Sec - fCookie.fobj.Mtim.Nsec = s.Mtim.Nsec - fCookie.fobj.Ctim.Sec = s.Ctim.Sec - fCookie.fobj.Ctim.Nsec = s.Ctim.Nsec - } - return fCookie, nil -} - -// GetOne wraps port_get(3c) and returns a single PortEvent. -func (e *EventPort) GetOne(t *Timespec) (*PortEvent, error) { - pe := new(portEvent) - _, err := port_get(e.port, pe, t) - if err != nil { - return nil, err - } - p := new(PortEvent) - e.mu.Lock() - defer e.mu.Unlock() - err = e.peIntToExt(pe, p) - if err != nil { - return nil, err - } - return p, nil -} - -// peIntToExt converts a cgo portEvent struct into the friendlier PortEvent -// NOTE: Always call this function while holding the e.mu mutex -func (e *EventPort) peIntToExt(peInt *portEvent, peExt *PortEvent) error { - if e.cookies == nil { - return fmt.Errorf("this EventPort is already closed") - } - peExt.Events = peInt.Events - peExt.Source = peInt.Source - fCookie := (*fileObjCookie)(unsafe.Pointer(peInt.User)) - _, found := e.cookies[fCookie] - - if !found { - panic("unexpected event port address; may be due to kernel bug; see https://go.dev/issue/54254") - } - peExt.Cookie = fCookie.cookie - delete(e.cookies, fCookie) - - switch peInt.Source { - case PORT_SOURCE_FD: - peExt.Fd = uintptr(peInt.Object) - // Only remove the fds entry if it exists and this cookie matches - if fobj, ok := e.fds[peExt.Fd]; ok { - if fobj == fCookie { - delete(e.fds, peExt.Fd) - } - } - case PORT_SOURCE_FILE: - peExt.fobj = fCookie.fobj - peExt.Path = BytePtrToString((*byte)(unsafe.Pointer(peExt.fobj.Name))) - // Only remove the paths entry if it exists and this cookie matches - if fobj, ok := e.paths[peExt.Path]; ok { - if fobj == fCookie { - delete(e.paths, peExt.Path) - } - } - } - return nil -} - -// Pending wraps port_getn(3c) and returns how many events are pending. -func (e *EventPort) Pending() (int, error) { - var n uint32 = 0 - _, err := port_getn(e.port, nil, 0, &n, nil) - return int(n), err -} - -// Get wraps port_getn(3c) and fills a slice of PortEvent. -// It will block until either min events have been received -// or the timeout has been exceeded. It will return how many -// events were actually received along with any error information. -func (e *EventPort) Get(s []PortEvent, min int, timeout *Timespec) (int, error) { - if min == 0 { - return 0, fmt.Errorf("need to request at least one event or use Pending() instead") - } - if len(s) < min { - return 0, fmt.Errorf("len(s) (%d) is less than min events requested (%d)", len(s), min) - } - got := uint32(min) - max := uint32(len(s)) - var err error - ps := make([]portEvent, max) - _, err = port_getn(e.port, &ps[0], max, &got, timeout) - // got will be trustworthy with ETIME, but not any other error. - if err != nil && err != ETIME { - return 0, err - } - e.mu.Lock() - defer e.mu.Unlock() - valid := 0 - for i := 0; i < int(got); i++ { - err2 := e.peIntToExt(&ps[i], &s[i]) - if err2 != nil { - if valid == 0 && err == nil { - // If err2 is the only error and there are no valid events - // to return, return it to the caller. - err = err2 - } - break - } - valid = i + 1 - } - return valid, err -} - -//sys putmsg(fd int, clptr *strbuf, dataptr *strbuf, flags int) (err error) - -func Putmsg(fd int, cl []byte, data []byte, flags int) (err error) { - var clp, datap *strbuf - if len(cl) > 0 { - clp = &strbuf{ - Len: int32(len(cl)), - Buf: (*int8)(unsafe.Pointer(&cl[0])), - } - } - if len(data) > 0 { - datap = &strbuf{ - Len: int32(len(data)), - Buf: (*int8)(unsafe.Pointer(&data[0])), - } - } - return putmsg(fd, clp, datap, flags) -} - -//sys getmsg(fd int, clptr *strbuf, dataptr *strbuf, flags *int) (err error) - -func Getmsg(fd int, cl []byte, data []byte) (retCl []byte, retData []byte, flags int, err error) { - var clp, datap *strbuf - if len(cl) > 0 { - clp = &strbuf{ - Maxlen: int32(len(cl)), - Buf: (*int8)(unsafe.Pointer(&cl[0])), - } - } - if len(data) > 0 { - datap = &strbuf{ - Maxlen: int32(len(data)), - Buf: (*int8)(unsafe.Pointer(&data[0])), - } - } - - if err = getmsg(fd, clp, datap, &flags); err != nil { - return nil, nil, 0, err - } - - if len(cl) > 0 { - retCl = cl[:clp.Len] - } - if len(data) > 0 { - retData = data[:datap.Len] - } - return retCl, retData, flags, nil -} - -func IoctlSetIntRetInt(fd int, req int, arg int) (int, error) { - return ioctlRet(fd, req, uintptr(arg)) -} - -func IoctlSetString(fd int, req int, val string) error { - bs := make([]byte, len(val)+1) - copy(bs[:len(bs)-1], val) - err := ioctlPtr(fd, req, unsafe.Pointer(&bs[0])) - runtime.KeepAlive(&bs[0]) - return err -} - -// Lifreq Helpers - -func (l *Lifreq) SetName(name string) error { - if len(name) >= len(l.Name) { - return fmt.Errorf("name cannot be more than %d characters", len(l.Name)-1) - } - for i := range name { - l.Name[i] = int8(name[i]) - } - return nil -} - -func (l *Lifreq) SetLifruInt(d int) { - *(*int)(unsafe.Pointer(&l.Lifru[0])) = d -} - -func (l *Lifreq) GetLifruInt() int { - return *(*int)(unsafe.Pointer(&l.Lifru[0])) -} - -func (l *Lifreq) SetLifruUint(d uint) { - *(*uint)(unsafe.Pointer(&l.Lifru[0])) = d -} - -func (l *Lifreq) GetLifruUint() uint { - return *(*uint)(unsafe.Pointer(&l.Lifru[0])) -} - -func IoctlLifreq(fd int, req int, l *Lifreq) error { - return ioctlPtr(fd, req, unsafe.Pointer(l)) -} - -// Strioctl Helpers - -func (s *Strioctl) SetInt(i int) { - s.Len = int32(unsafe.Sizeof(i)) - s.Dp = (*int8)(unsafe.Pointer(&i)) -} - -func IoctlSetStrioctlRetInt(fd int, req int, s *Strioctl) (int, error) { - return ioctlPtrRet(fd, req, unsafe.Pointer(s)) -} -- cgit v1.2.3