diff options
author | 2018-12-09 17:59:39 -0800 | |
---|---|---|
committer | 2018-12-09 17:59:39 -0800 | |
commit | 59d8e9b95eddc6b74b76bfc0bd8b786750e800a6 (patch) | |
tree | 5b2379ea736b7bb94e2fc0d492e86b04f32a8d2b /vendor/golang.org/x/sys/unix/syscall_freebsd.go | |
parent | 61bfb3cfa8857a144460d05330c1d1fccded960b (diff) |
Update dependencies
Diffstat (limited to 'vendor/golang.org/x/sys/unix/syscall_freebsd.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/syscall_freebsd.go | 310 |
1 files changed, 296 insertions, 14 deletions
diff --git a/vendor/golang.org/x/sys/unix/syscall_freebsd.go b/vendor/golang.org/x/sys/unix/syscall_freebsd.go index 77a634c..085a808 100644 --- a/vendor/golang.org/x/sys/unix/syscall_freebsd.go +++ b/vendor/golang.org/x/sys/unix/syscall_freebsd.go @@ -13,9 +13,34 @@ package unix import ( + "sync" "unsafe" ) +const ( + SYS_FSTAT_FREEBSD12 = 551 // { int fstat(int fd, _Out_ struct stat *sb); } + SYS_FSTATAT_FREEBSD12 = 552 // { int fstatat(int fd, _In_z_ char *path, \ + SYS_GETDIRENTRIES_FREEBSD12 = 554 // { ssize_t getdirentries(int fd, \ + SYS_STATFS_FREEBSD12 = 555 // { int statfs(_In_z_ char *path, \ + SYS_FSTATFS_FREEBSD12 = 556 // { int fstatfs(int fd, \ + SYS_GETFSSTAT_FREEBSD12 = 557 // { int getfsstat( \ + SYS_MKNODAT_FREEBSD12 = 559 // { int mknodat(int fd, _In_z_ char *path, \ +) + +// See https://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook/versions.html. +var ( + osreldateOnce sync.Once + osreldate uint32 +) + +// INO64_FIRST from /usr/src/lib/libc/sys/compat-ino64.h +const _ino64First = 1200031 + +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 @@ -121,17 +146,39 @@ func Getwd() (string, error) { } func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { - var _p0 unsafe.Pointer - var bufsize uintptr + var ( + _p0 unsafe.Pointer + bufsize uintptr + oldBuf []statfs_freebsd11_t + needsConvert bool + ) + if len(buf) > 0 { - _p0 = unsafe.Pointer(&buf[0]) - bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) + if supportsABI(_ino64First) { + _p0 = unsafe.Pointer(&buf[0]) + bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) + } else { + n := len(buf) + oldBuf = make([]statfs_freebsd11_t, n) + _p0 = unsafe.Pointer(&oldBuf[0]) + bufsize = unsafe.Sizeof(statfs_freebsd11_t{}) * uintptr(n) + needsConvert = true + } } - r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags)) + var sysno uintptr = SYS_GETFSSTAT + if supportsABI(_ino64First) { + sysno = SYS_GETFSSTAT_FREEBSD12 + } + r0, _, e1 := Syscall(sysno, uintptr(_p0), bufsize, uintptr(flags)) n = int(r0) if e1 != 0 { err = e1 } + if e1 == 0 && needsConvert { + for i := range oldBuf { + buf[i].convertFrom(&oldBuf[i]) + } + } return } @@ -225,6 +272,234 @@ func Uname(uname *Utsname) error { return nil } +func Stat(path string, st *Stat_t) (err error) { + var oldStat stat_freebsd11_t + if supportsABI(_ino64First) { + return fstatat_freebsd12(AT_FDCWD, path, st, 0) + } + err = stat(path, &oldStat) + if err != nil { + return err + } + + st.convertFrom(&oldStat) + return nil +} + +func Lstat(path string, st *Stat_t) (err error) { + var oldStat stat_freebsd11_t + if supportsABI(_ino64First) { + return fstatat_freebsd12(AT_FDCWD, path, st, AT_SYMLINK_NOFOLLOW) + } + err = lstat(path, &oldStat) + if err != nil { + return err + } + + st.convertFrom(&oldStat) + return nil +} + +func Fstat(fd int, st *Stat_t) (err error) { + var oldStat stat_freebsd11_t + if supportsABI(_ino64First) { + return fstat_freebsd12(fd, st) + } + err = fstat(fd, &oldStat) + if err != nil { + return err + } + + st.convertFrom(&oldStat) + return nil +} + +func Fstatat(fd int, path string, st *Stat_t, flags int) (err error) { + var oldStat stat_freebsd11_t + if supportsABI(_ino64First) { + return fstatat_freebsd12(fd, path, st, flags) + } + err = fstatat(fd, path, &oldStat, flags) + if err != nil { + return err + } + + st.convertFrom(&oldStat) + return nil +} + +func Statfs(path string, st *Statfs_t) (err error) { + var oldStatfs statfs_freebsd11_t + if supportsABI(_ino64First) { + return statfs_freebsd12(path, st) + } + err = statfs(path, &oldStatfs) + if err != nil { + return err + } + + st.convertFrom(&oldStatfs) + return nil +} + +func Fstatfs(fd int, st *Statfs_t) (err error) { + var oldStatfs statfs_freebsd11_t + if supportsABI(_ino64First) { + return fstatfs_freebsd12(fd, st) + } + err = fstatfs(fd, &oldStatfs) + if err != nil { + return err + } + + st.convertFrom(&oldStatfs) + return nil +} + +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 supportsABI(_ino64First) { + return getdirentries_freebsd12(fd, buf, basep) + } + + // The old syscall entries are smaller than the new. Use 1/4 of the original + // buffer size rounded up to DIRBLKSIZ (see /usr/src/lib/libc/sys/getdirentries.c). + oldBufLen := roundup(len(buf)/4, _dirblksiz) + oldBuf := make([]byte, oldBufLen) + n, err = getdirentries(fd, oldBuf, basep) + if err == nil && n > 0 { + n = convertFromDirents11(buf, oldBuf[:n]) + } + return +} + +func Mknod(path string, mode uint32, dev uint64) (err error) { + var oldDev int + if supportsABI(_ino64First) { + return mknodat_freebsd12(AT_FDCWD, path, mode, dev) + } + oldDev = int(dev) + return mknod(path, mode, oldDev) +} + +func Mknodat(fd int, path string, mode uint32, dev uint64) (err error) { + var oldDev int + if supportsABI(_ino64First) { + return mknodat_freebsd12(fd, path, mode, dev) + } + oldDev = int(dev) + return mknodat(fd, path, mode, oldDev) +} + +// round x to the nearest multiple of y, larger or equal to x. +// +// from /usr/include/sys/param.h Macros for counting and rounding. +// #define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) +func roundup(x, y int) int { + return ((x + y - 1) / y) * y +} + +func (s *Stat_t) convertFrom(old *stat_freebsd11_t) { + *s = Stat_t{ + Dev: uint64(old.Dev), + Ino: uint64(old.Ino), + Nlink: uint64(old.Nlink), + Mode: old.Mode, + Uid: old.Uid, + Gid: old.Gid, + Rdev: uint64(old.Rdev), + Atim: old.Atim, + Mtim: old.Mtim, + Ctim: old.Ctim, + Birthtim: old.Birthtim, + Size: old.Size, + Blocks: old.Blocks, + Blksize: old.Blksize, + Flags: old.Flags, + Gen: uint64(old.Gen), + } +} + +func (s *Statfs_t) convertFrom(old *statfs_freebsd11_t) { + *s = Statfs_t{ + Version: _statfsVersion, + Type: old.Type, + Flags: old.Flags, + Bsize: old.Bsize, + Iosize: old.Iosize, + Blocks: old.Blocks, + Bfree: old.Bfree, + Bavail: old.Bavail, + Files: old.Files, + Ffree: old.Ffree, + Syncwrites: old.Syncwrites, + Asyncwrites: old.Asyncwrites, + Syncreads: old.Syncreads, + Asyncreads: old.Asyncreads, + // Spare + Namemax: old.Namemax, + Owner: old.Owner, + Fsid: old.Fsid, + // Charspare + // Fstypename + // Mntfromname + // Mntonname + } + + sl := old.Fstypename[:] + n := clen(*(*[]byte)(unsafe.Pointer(&sl))) + copy(s.Fstypename[:], old.Fstypename[:n]) + + sl = old.Mntfromname[:] + n = clen(*(*[]byte)(unsafe.Pointer(&sl))) + copy(s.Mntfromname[:], old.Mntfromname[:n]) + + sl = old.Mntonname[:] + n = clen(*(*[]byte)(unsafe.Pointer(&sl))) + copy(s.Mntonname[:], old.Mntonname[:n]) +} + +func convertFromDirents11(buf []byte, old []byte) int { + const ( + fixedSize = int(unsafe.Offsetof(Dirent{}.Name)) + oldFixedSize = int(unsafe.Offsetof(dirent_freebsd11{}.Name)) + ) + + dstPos := 0 + srcPos := 0 + for dstPos+fixedSize < len(buf) && srcPos+oldFixedSize < len(old) { + dstDirent := (*Dirent)(unsafe.Pointer(&buf[dstPos])) + srcDirent := (*dirent_freebsd11)(unsafe.Pointer(&old[srcPos])) + + reclen := roundup(fixedSize+int(srcDirent.Namlen)+1, 8) + if dstPos+reclen > len(buf) { + break + } + + dstDirent.Fileno = uint64(srcDirent.Fileno) + dstDirent.Off = 0 + dstDirent.Reclen = uint16(reclen) + dstDirent.Type = srcDirent.Type + dstDirent.Pad0 = 0 + dstDirent.Namlen = uint16(srcDirent.Namlen) + dstDirent.Pad1 = 0 + + copy(dstDirent.Name[:], srcDirent.Name[:srcDirent.Namlen]) + padding := buf[dstPos+fixedSize+int(dstDirent.Namlen) : dstPos+reclen] + for i := range padding { + padding[i] = 0 + } + + dstPos += int(dstDirent.Reclen) + srcPos += int(srcDirent.Reclen) + } + + return dstPos +} + /* * Exposed directly */ @@ -264,13 +539,16 @@ func Uname(uname *Utsname) 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 fstat(fd int, stat *stat_freebsd11_t) (err error) +//sys fstat_freebsd12(fd int, stat *Stat_t) (err error) +//sys fstatat(fd int, path string, stat *stat_freebsd11_t, flags int) (err error) +//sys fstatat_freebsd12(fd int, path string, stat *Stat_t, flags int) (err error) +//sys fstatfs(fd int, stat *statfs_freebsd11_t) (err error) +//sys fstatfs_freebsd12(fd int, stat *Statfs_t) (err error) //sys Fsync(fd int) (err error) //sys Ftruncate(fd int, length int64) (err error) -//sys Getdents(fd int, buf []byte) (n int, err error) -//sys Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) +//sys getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) +//sys getdirentries_freebsd12(fd int, buf []byte, basep *uintptr) (n int, err error) //sys Getdtablesize() (size int) //sysnb Getegid() (egid int) //sysnb Geteuid() (uid int) @@ -292,11 +570,13 @@ func Uname(uname *Utsname) 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 Lstat(path string, stat *Stat_t) (err error) +//sys lstat(path string, stat *stat_freebsd11_t) (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 Mknod(path string, mode uint32, dev int) (err error) +//sys mknod(path string, mode uint32, dev int) (err error) +//sys mknodat(fd int, path string, mode uint32, dev int) (err error) +//sys mknodat_freebsd12(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) @@ -326,8 +606,9 @@ func Uname(uname *Utsname) error { //sysnb Setsid() (pid int, err error) //sysnb Settimeofday(tp *Timeval) (err error) //sysnb Setuid(uid int) (err error) -//sys Stat(path string, stat *Stat_t) (err error) -//sys Statfs(path string, stat *Statfs_t) (err error) +//sys stat(path string, stat *stat_freebsd11_t) (err error) +//sys statfs(path string, stat *statfs_freebsd11_t) (err error) +//sys statfs_freebsd12(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) @@ -382,6 +663,7 @@ func Uname(uname *Utsname) error { // Kqueue_portset // Getattrlist // Setattrlist +// Getdents // Getdirentriesattr // Searchfs // Delete |