diff options
Diffstat (limited to 'libgo/go/os/file.go')
| -rw-r--r-- | libgo/go/os/file.go | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/libgo/go/os/file.go b/libgo/go/os/file.go index 52dd943..e717f17 100644 --- a/libgo/go/os/file.go +++ b/libgo/go/os/file.go @@ -44,11 +44,13 @@ import ( "errors" "internal/poll" "internal/testlog" + "internal/unsafeheader" "io" "io/fs" "runtime" "syscall" "time" + "unsafe" ) // Name returns the name of the file as presented to Open. @@ -246,7 +248,12 @@ func (f *File) Seek(offset int64, whence int) (ret int64, err error) { // WriteString is like Write, but writes the contents of string s rather than // a slice of bytes. func (f *File) WriteString(s string) (n int, err error) { - return f.Write([]byte(s)) + var b []byte + hdr := (*unsafeheader.Slice)(unsafe.Pointer(&b)) + hdr.Data = (*unsafeheader.String)(unsafe.Pointer(&s)).Data + hdr.Cap = len(s) + hdr.Len = len(s) + return f.Write(b) } // Mkdir creates a new directory with the specified name and permission @@ -644,6 +651,17 @@ func (dir dirFS) Open(name string) (fs.File, error) { return f, nil } +func (dir dirFS) Stat(name string) (fs.FileInfo, error) { + if !fs.ValidPath(name) || runtime.GOOS == "windows" && containsAny(name, `\:`) { + return nil, &PathError{Op: "stat", Path: name, Err: ErrInvalid} + } + f, err := Stat(string(dir) + "/" + name) + if err != nil { + return nil, err + } + return f, nil +} + // ReadFile reads the named file and returns the contents. // A successful call returns err == nil, not err == EOF. // Because ReadFile reads the whole file, it does not treat an EOF from Read |