From c90f36e3dd179d2de96f4f5fe38d8dc9a9de6dfe Mon Sep 17 00:00:00 2001 From: Emile Date: Fri, 25 Oct 2024 15:55:50 +0200 Subject: vendor --- vendor/golang.org/x/sys/unix/syscall_freebsd.go | 455 ++++++++++++++++++++++++ 1 file changed, 455 insertions(+) create mode 100644 vendor/golang.org/x/sys/unix/syscall_freebsd.go (limited to 'vendor/golang.org/x/sys/unix/syscall_freebsd.go') diff --git a/vendor/golang.org/x/sys/unix/syscall_freebsd.go b/vendor/golang.org/x/sys/unix/syscall_freebsd.go new file mode 100644 index 0000000..2b57e0f --- /dev/null +++ b/vendor/golang.org/x/sys/unix/syscall_freebsd.go @@ -0,0 +1,455 @@ +// Copyright 2009,2010 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. + +// FreeBSD 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_bsd.go or syscall_unix.go. + +package unix + +import ( + "errors" + "sync" + "unsafe" +) + +// See https://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook/versions.html. +var ( + osreldateOnce sync.Once + osreldate uint32 +) + +func supportsABI(ver uint32) bool { + osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") }) + return osreldate >= ver +} + +// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. +type SockaddrDatalink struct { + Len uint8 + Family uint8 + Index uint16 + Type uint8 + Nlen uint8 + Alen uint8 + Slen uint8 + Data [46]int8 + raw RawSockaddrDatalink +} + +func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { + return nil, EAFNOSUPPORT +} + +// Translate "kern.hostname" to []_C_int{0,1,2,3}. +func nametomib(name string) (mib []_C_int, err error) { + const siz = unsafe.Sizeof(mib[0]) + + // NOTE(rsc): It seems strange to set the buffer to have + // size CTL_MAXNAME+2 but use only CTL_MAXNAME + // as the size. I don't know why the +2 is here, but the + // kernel uses +2 for its own implementation of this function. + // I am scared that if we don't include the +2 here, the kernel + // will silently write 2 words farther than we specify + // and we'll get memory corruption. + 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 + } + + // Magic sysctl: "setting" 0.3 to a string name + // lets you read back the array of integers form. + 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{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno)) +} + +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 Pipe(p []int) (err error) { + return Pipe2(p, 0) +} + +//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 GetsockoptIPMreqn(fd, level, opt int) (*IPMreqn, error) { + var value IPMreqn + vallen := _Socklen(SizeofIPMreqn) + errno := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) + return &value, errno +} + +func SetsockoptIPMreqn(fd, level, opt int, mreq *IPMreqn) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(mreq), unsafe.Sizeof(*mreq)) +} + +// GetsockoptXucred is a getsockopt wrapper that returns an Xucred struct. +// The usual level and opt are SOL_LOCAL and LOCAL_PEERCRED, respectively. +func GetsockoptXucred(fd, level, opt int) (*Xucred, error) { + x := new(Xucred) + vallen := _Socklen(SizeofXucred) + err := getsockopt(fd, level, opt, unsafe.Pointer(x), &vallen) + return x, err +} + +func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) { + var rsa RawSockaddrAny + var len _Socklen = SizeofSockaddrAny + nfd, err = accept4(fd, &rsa, &len, flags) + if err != nil { + return + } + if len > SizeofSockaddrAny { + panic("RawSockaddrAny too small") + } + sa, err = anyToSockaddr(fd, &rsa) + if err != nil { + Close(nfd) + nfd = 0 + } + return +} + +//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD + +func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { + var ( + _p0 unsafe.Pointer + bufsize uintptr + ) + if len(buf) > 0 { + _p0 = unsafe.Pointer(&buf[0]) + bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) + } + r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags)) + n = int(r0) + if e1 != 0 { + err = e1 + } + return +} + +//sys ioctl(fd int, req uint, arg uintptr) (err error) = SYS_IOCTL +//sys ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = SYS_IOCTL + +//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL + +func Uname(uname *Utsname) error { + mib := []_C_int{CTL_KERN, KERN_OSTYPE} + n := unsafe.Sizeof(uname.Sysname) + // Suppress ENOMEM errors to be compatible with the C library __xuname() implementation. + if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil && !errors.Is(err, ENOMEM) { + 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 && !errors.Is(err, ENOMEM) { + 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 && !errors.Is(err, ENOMEM) { + 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 && !errors.Is(err, ENOMEM) { + 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 && !errors.Is(err, ENOMEM) { + return err + } + + return nil +} + +func Stat(path string, st *Stat_t) (err error) { + return Fstatat(AT_FDCWD, path, st, 0) +} + +func Lstat(path string, st *Stat_t) (err error) { + return Fstatat(AT_FDCWD, path, st, AT_SYMLINK_NOFOLLOW) +} + +func Getdents(fd int, buf []byte) (n int, err error) { + return Getdirentries(fd, buf, nil) +} + +func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { + if basep == nil || unsafe.Sizeof(*basep) == 8 { + return getdirentries(fd, buf, (*uint64)(unsafe.Pointer(basep))) + } + // The syscall needs a 64-bit base. On 32-bit machines + // we can't just use the basep passed in. See #32498. + var base uint64 = uint64(*basep) + n, err = getdirentries(fd, buf, &base) + *basep = uintptr(base) + if base>>32 != 0 { + // We can't stuff the base back into a uintptr, so any + // future calls would be suspect. Generate an error. + // EIO is allowed by getdirentries. + err = EIO + } + return +} + +func Mknod(path string, mode uint32, dev uint64) (err error) { + return Mknodat(AT_FDCWD, path, mode, dev) +} + +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) +} + +//sys ptrace(request int, pid int, addr uintptr, data int) (err error) +//sys ptracePtr(request int, pid int, addr unsafe.Pointer, data int) (err error) = SYS_PTRACE + +func PtraceAttach(pid int) (err error) { + return ptrace(PT_ATTACH, pid, 0, 0) +} + +func PtraceCont(pid int, signal int) (err error) { + return ptrace(PT_CONTINUE, pid, 1, signal) +} + +func PtraceDetach(pid int) (err error) { + return ptrace(PT_DETACH, pid, 1, 0) +} + +func PtraceGetFpRegs(pid int, fpregsout *FpReg) (err error) { + return ptracePtr(PT_GETFPREGS, pid, unsafe.Pointer(fpregsout), 0) +} + +func PtraceGetRegs(pid int, regsout *Reg) (err error) { + return ptracePtr(PT_GETREGS, pid, unsafe.Pointer(regsout), 0) +} + +func PtraceIO(req int, pid int, offs uintptr, out []byte, countin int) (count int, err error) { + ioDesc := PtraceIoDesc{ + Op: int32(req), + Offs: offs, + } + if countin > 0 { + _ = out[:countin] // check bounds + ioDesc.Addr = &out[0] + } else if out != nil { + ioDesc.Addr = (*byte)(unsafe.Pointer(&_zero)) + } + ioDesc.SetLen(countin) + + err = ptracePtr(PT_IO, pid, unsafe.Pointer(&ioDesc), 0) + return int(ioDesc.Len), err +} + +func PtraceLwpEvents(pid int, enable int) (err error) { + return ptrace(PT_LWP_EVENTS, pid, 0, enable) +} + +func PtraceLwpInfo(pid int, info *PtraceLwpInfoStruct) (err error) { + return ptracePtr(PT_LWPINFO, pid, unsafe.Pointer(info), int(unsafe.Sizeof(*info))) +} + +func PtracePeekData(pid int, addr uintptr, out []byte) (count int, err error) { + return PtraceIO(PIOD_READ_D, pid, addr, out, SizeofLong) +} + +func PtracePeekText(pid int, addr uintptr, out []byte) (count int, err error) { + return PtraceIO(PIOD_READ_I, pid, addr, out, SizeofLong) +} + +func PtracePokeData(pid int, addr uintptr, data []byte) (count int, err error) { + return PtraceIO(PIOD_WRITE_D, pid, addr, data, SizeofLong) +} + +func PtracePokeText(pid int, addr uintptr, data []byte) (count int, err error) { + return PtraceIO(PIOD_WRITE_I, pid, addr, data, SizeofLong) +} + +func PtraceSetRegs(pid int, regs *Reg) (err error) { + return ptracePtr(PT_SETREGS, pid, unsafe.Pointer(regs), 0) +} + +func PtraceSingleStep(pid int) (err error) { + return ptrace(PT_STEP, pid, 1, 0) +} + +func Dup3(oldfd, newfd, flags int) error { + if oldfd == newfd || flags&^O_CLOEXEC != 0 { + return EINVAL + } + how := F_DUP2FD + if flags&O_CLOEXEC != 0 { + how = F_DUP2FD_CLOEXEC + } + _, err := fcntl(oldfd, how, newfd) + return err +} + +/* + * Exposed directly + */ +//sys Access(path string, mode uint32) (err error) +//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) +//sys CapEnter() (err error) +//sys capRightsGet(version int, fd int, rightsp *CapRights) (err error) = SYS___CAP_RIGHTS_GET +//sys capRightsLimit(fd int, rightsp *CapRights) (err error) +//sys Chdir(path string) (err error) +//sys Chflags(path string, flags int) (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 Dup(fd int) (nfd int, err error) +//sys Dup2(from int, to int) (err error) +//sys Exit(code int) +//sys ExtattrGetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) +//sys ExtattrSetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) +//sys ExtattrDeleteFd(fd int, attrnamespace int, attrname string) (err error) +//sys ExtattrListFd(fd int, attrnamespace int, data uintptr, nbytes int) (ret int, err error) +//sys ExtattrGetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) +//sys ExtattrSetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) +//sys ExtattrDeleteFile(file string, attrnamespace int, attrname string) (err error) +//sys ExtattrListFile(file string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) +//sys ExtattrGetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) +//sys ExtattrSetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) +//sys ExtattrDeleteLink(link string, attrnamespace int, attrname string) (err error) +//sys ExtattrListLink(link string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) +//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_POSIX_FADVISE +//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) +//sys Fchdir(fd int) (err error) +//sys Fchflags(fd int, flags 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 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 Fstatfs(fd int, stat *Statfs_t) (err error) +//sys Fsync(fd int) (err error) +//sys Ftruncate(fd int, length int64) (err error) +//sys getdirentries(fd int, buf []byte, basep *uint64) (n int, err error) +//sys Getdtablesize() (size int) +//sysnb Getegid() (egid int) +//sysnb Geteuid() (uid int) +//sysnb Getgid() (gid int) +//sysnb Getpgid(pid int) (pgid int, err error) +//sysnb Getpgrp() (pgrp int) +//sysnb Getpid() (pid int) +//sysnb Getppid() (ppid int) +//sys Getpriority(which int, who int) (prio 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 Issetugid() (tainted bool) +//sys Kill(pid int, signum syscall.Signal) (err error) +//sys Kqueue() (fd int, err error) +//sys Lchown(path string, uid int, gid int) (err 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 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 Mknodat(fd int, path string, mode uint32, dev uint64) (err error) +//sys Nanosleep(time *Timespec, leftover *Timespec) (err error) +//sys Open(path string, mode int, perm uint32) (fd int, err error) +//sys Openat(fdat int, path string, mode int, perm uint32) (fd int, err error) +//sys Pathconf(path string, name int) (val int, 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 Readlinkat(dirfd int, path string, buf []byte) (n int, err error) +//sys Rename(from string, to string) (err error) +//sys Renameat(fromfd int, from string, tofd int, to string) (err error) +//sys Revoke(path string) (err error) +//sys Rmdir(path string) (err error) +//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_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 Setlogin(name string) (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 Setresgid(rgid int, egid int, sgid int) (err error) +//sysnb Setresuid(ruid int, euid int, suid int) (err error) +//sysnb Setsid() (pid int, err error) +//sysnb Settimeofday(tp *Timeval) (err error) +//sysnb Setuid(uid int) (err error) +//sys Statfs(path string, stat *Statfs_t) (err error) +//sys Symlink(path string, link string) (err error) +//sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) +//sys Sync() (err error) +//sys Truncate(path string, length int64) (err error) +//sys Umask(newmask int) (oldmask int) +//sys Undelete(path string) (err error) +//sys Unlink(path string) (err error) +//sys Unlinkat(dirfd int, path string, flags int) (err error) +//sys Unmount(path string, flags int) (err error) +//sys write(fd int, p []byte) (n int, err error) +//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 accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error) +//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) -- cgit 1.4.1