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- //go:build !windows
- // +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)
- }
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