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moby--moby/pkg/system/lstat_unix.go
Kir Kolyshkin 8072e62d83 pkg/system/stat_unix: wrap errors in PathError
syscall.Stat (and Lstat), unlike functions from os pkg,
return "raw" errors (like EPERM or EINVAL), and those are
propagated up the function call stack unchanged, and gets
logged and/or returned to the user as is.

Wrap those into os.PathError{} so the error message will
at least have function name and file name.

Note we use Capitalized function names to distinguish
between functions in os and ours.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
2018-12-10 20:06:10 -08:00

20 lines
442 B
Go

// +build !windows
package system // import "github.com/docker/docker/pkg/system"
import (
"os"
"syscall"
)
// Lstat takes a path to a file and returns
// a system.StatT type pertaining to that file.
//
// Throws an error if the file does not exist
func Lstat(path string) (*StatT, error) {
s := &syscall.Stat_t{}
if err := syscall.Lstat(path, s); err != nil {
return nil, &os.PathError{"Lstat", path, err}
}
return fromStatT(s)
}