| // +build !windows |
| |
| package idtools // import "github.com/docker/docker/pkg/idtools" |
| |
| import ( |
| "fmt" |
| "os/exec" |
| "path/filepath" |
| ) |
| |
| func resolveBinary(binname string) (string, error) { |
| binaryPath, err := exec.LookPath(binname) |
| if err != nil { |
| return "", err |
| } |
| resolvedPath, err := filepath.EvalSymlinks(binaryPath) |
| if err != nil { |
| return "", err |
| } |
| // only return no error if the final resolved binary basename |
| // matches what was searched for |
| if filepath.Base(resolvedPath) == binname { |
| return resolvedPath, nil |
| } |
| return "", fmt.Errorf("Binary %q does not resolve to a binary of that name in $PATH (%q)", binname, resolvedPath) |
| } |
| |
| func execCmd(cmd string, arg ...string) ([]byte, error) { |
| execCmd := exec.Command(cmd, arg...) |
| return execCmd.CombinedOutput() |
| } |
