From 9d6dce119949d340ebb42becae018a3c11148690 Mon Sep 17 00:00:00 2001 From: Daniel J Walsh Date: Thu, 1 Aug 2019 03:46:14 -0400 Subject: github.com/containers/storage v1.12.13 Signed-off-by: Daniel J Walsh --- vendor/golang.org/x/sys/unix/dirent.go | 89 ++++++++++++++++++++++- vendor/golang.org/x/sys/unix/syscall_aix.go | 16 ++++ vendor/golang.org/x/sys/unix/syscall_darwin.go | 12 +++ vendor/golang.org/x/sys/unix/syscall_dragonfly.go | 16 ++++ vendor/golang.org/x/sys/unix/syscall_freebsd.go | 12 +++ vendor/golang.org/x/sys/unix/syscall_linux.go | 16 ++++ vendor/golang.org/x/sys/unix/syscall_netbsd.go | 12 +++ vendor/golang.org/x/sys/unix/syscall_openbsd.go | 12 +++ vendor/golang.org/x/sys/unix/syscall_solaris.go | 16 ++++ 9 files changed, 199 insertions(+), 2 deletions(-) (limited to 'vendor/golang.org') diff --git a/vendor/golang.org/x/sys/unix/dirent.go b/vendor/golang.org/x/sys/unix/dirent.go index 4407c505a..6f3460e69 100644 --- a/vendor/golang.org/x/sys/unix/dirent.go +++ b/vendor/golang.org/x/sys/unix/dirent.go @@ -6,12 +6,97 @@ package unix -import "syscall" +import "unsafe" + +// readInt returns the size-bytes unsigned integer in native byte order at offset off. +func readInt(b []byte, off, size uintptr) (u uint64, ok bool) { + if len(b) < int(off+size) { + return 0, false + } + if isBigEndian { + return readIntBE(b[off:], size), true + } + return readIntLE(b[off:], size), true +} + +func readIntBE(b []byte, size uintptr) uint64 { + switch size { + case 1: + return uint64(b[0]) + case 2: + _ = b[1] // bounds check hint to compiler; see golang.org/issue/14808 + return uint64(b[1]) | uint64(b[0])<<8 + case 4: + _ = b[3] // bounds check hint to compiler; see golang.org/issue/14808 + return uint64(b[3]) | uint64(b[2])<<8 | uint64(b[1])<<16 | uint64(b[0])<<24 + case 8: + _ = b[7] // bounds check hint to compiler; see golang.org/issue/14808 + return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 | + uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56 + default: + panic("syscall: readInt with unsupported size") + } +} + +func readIntLE(b []byte, size uintptr) uint64 { + switch size { + case 1: + return uint64(b[0]) + case 2: + _ = b[1] // bounds check hint to compiler; see golang.org/issue/14808 + return uint64(b[0]) | uint64(b[1])<<8 + case 4: + _ = b[3] // bounds check hint to compiler; see golang.org/issue/14808 + return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 + case 8: + _ = b[7] // bounds check hint to compiler; see golang.org/issue/14808 + return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | + uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56 + default: + panic("syscall: readInt with unsupported size") + } +} // ParseDirent parses up to max directory entries in buf, // appending the names to names. It returns the number of // bytes consumed from buf, the number of entries added // to names, and the new names slice. func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) { - return syscall.ParseDirent(buf, max, names) + origlen := len(buf) + count = 0 + for max != 0 && len(buf) > 0 { + reclen, ok := direntReclen(buf) + if !ok || reclen > uint64(len(buf)) { + return origlen, count, names + } + rec := buf[:reclen] + buf = buf[reclen:] + ino, ok := direntIno(rec) + if !ok { + break + } + if ino == 0 { // File absent in directory. + continue + } + const namoff = uint64(unsafe.Offsetof(Dirent{}.Name)) + namlen, ok := direntNamlen(rec) + if !ok || namoff+namlen > uint64(len(rec)) { + break + } + name := rec[namoff : namoff+namlen] + for i, c := range name { + if c == 0 { + name = name[:i] + break + } + } + // Check for useless names before allocating a string. + if string(name) == "." || string(name) == ".." { + continue + } + max-- + count++ + names = append(names, string(name)) + } + return origlen - len(buf), count, names } diff --git a/vendor/golang.org/x/sys/unix/syscall_aix.go b/vendor/golang.org/x/sys/unix/syscall_aix.go index a079243dc..1aa065f9c 100644 --- a/vendor/golang.org/x/sys/unix/syscall_aix.go +++ b/vendor/golang.org/x/sys/unix/syscall_aix.go @@ -280,6 +280,22 @@ func sendfile(outfd int, infd int, offset *int64, count int) (written int, err e return -1, ENOSYS } +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 +} + //sys getdirent(fd int, buf []byte) (n int, err error) func Getdents(fd int, buf []byte) (n int, err error) { return getdirent(fd, buf) diff --git a/vendor/golang.org/x/sys/unix/syscall_darwin.go b/vendor/golang.org/x/sys/unix/syscall_darwin.go index 212009189..216b4ac9e 100644 --- a/vendor/golang.org/x/sys/unix/syscall_darwin.go +++ b/vendor/golang.org/x/sys/unix/syscall_darwin.go @@ -77,6 +77,18 @@ func nametomib(name string) (mib []_C_int, err error) { return buf[0 : n/siz], nil } +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) { + return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) +} + //sys ptrace(request int, pid int, addr uintptr, data uintptr) (err error) func PtraceAttach(pid int) (err error) { return ptrace(PT_ATTACH, pid, 0, 0) } func PtraceDetach(pid int) (err error) { return ptrace(PT_DETACH, pid, 0, 0) } diff --git a/vendor/golang.org/x/sys/unix/syscall_dragonfly.go b/vendor/golang.org/x/sys/unix/syscall_dragonfly.go index bf537011f..260a400f9 100644 --- a/vendor/golang.org/x/sys/unix/syscall_dragonfly.go +++ b/vendor/golang.org/x/sys/unix/syscall_dragonfly.go @@ -57,6 +57,22 @@ func nametomib(name string) (mib []_C_int, err error) { 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) { + namlen, ok := direntNamlen(buf) + if !ok { + return 0, false + } + return (16 + namlen + 1 + 7) &^ 7, true +} + +func direntNamlen(buf []byte) (uint64, bool) { + return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) +} + //sysnb pipe() (r int, w int, err error) func Pipe(p []int) (err error) { diff --git a/vendor/golang.org/x/sys/unix/syscall_freebsd.go b/vendor/golang.org/x/sys/unix/syscall_freebsd.go index c9c802df0..329d240b9 100644 --- a/vendor/golang.org/x/sys/unix/syscall_freebsd.go +++ b/vendor/golang.org/x/sys/unix/syscall_freebsd.go @@ -82,6 +82,18 @@ func nametomib(name string) (mib []_C_int, err error) { 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) } diff --git a/vendor/golang.org/x/sys/unix/syscall_linux.go b/vendor/golang.org/x/sys/unix/syscall_linux.go index 11d07ace2..637b5017b 100644 --- a/vendor/golang.org/x/sys/unix/syscall_linux.go +++ b/vendor/golang.org/x/sys/unix/syscall_linux.go @@ -1413,6 +1413,22 @@ func Reboot(cmd int) (err error) { return reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, cmd, "") } +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 +} + //sys mount(source string, target string, fstype string, flags uintptr, data *byte) (err error) func Mount(source string, target string, fstype string, flags uintptr, data string) (err error) { diff --git a/vendor/golang.org/x/sys/unix/syscall_netbsd.go b/vendor/golang.org/x/sys/unix/syscall_netbsd.go index 45377107a..5ef309040 100644 --- a/vendor/golang.org/x/sys/unix/syscall_netbsd.go +++ b/vendor/golang.org/x/sys/unix/syscall_netbsd.go @@ -94,6 +94,18 @@ func nametomib(name string) (mib []_C_int, err error) { return mib, 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 SysctlClockinfo(name string) (*Clockinfo, error) { mib, err := sysctlmib(name) if err != nil { diff --git a/vendor/golang.org/x/sys/unix/syscall_openbsd.go b/vendor/golang.org/x/sys/unix/syscall_openbsd.go index 4f34d6d03..1a074b2fe 100644 --- a/vendor/golang.org/x/sys/unix/syscall_openbsd.go +++ b/vendor/golang.org/x/sys/unix/syscall_openbsd.go @@ -43,6 +43,18 @@ func nametomib(name string) (mib []_C_int, err error) { return nil, EINVAL } +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 SysctlClockinfo(name string) (*Clockinfo, error) { mib, err := sysctlmib(name) if err != nil { diff --git a/vendor/golang.org/x/sys/unix/syscall_solaris.go b/vendor/golang.org/x/sys/unix/syscall_solaris.go index 9147ba152..0153a316d 100644 --- a/vendor/golang.org/x/sys/unix/syscall_solaris.go +++ b/vendor/golang.org/x/sys/unix/syscall_solaris.go @@ -35,6 +35,22 @@ type SockaddrDatalink struct { 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) { -- cgit v1.2.3-54-g00ecf