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runsc: support symlink to the exec path.

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PiperOrigin-RevId: 201049912
Change-Id: Idd937492217a4c2ca3d59c602e41576a3b203dd9
This commit is contained in:
Lantao Liu
2018-06-18 13:37:59 -07:00
committed by Shentubot
parent 821aaf531d
commit f3727528e5
1 changed files with 3 additions and 1 deletions
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runsc/specutils/specutils.go
+3 -1
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@@ -106,7 +106,9 @@ func GetExecutablePath(exec, root string, env []string) (string, error) {
// for.
for _, p := range path {
abs := filepath.Join(root, p, exec)
if _, err := os.Stat(abs); err == nil {
// Do not follow symlink link because the target is in the container
// root filesystem.
if _, err := os.Lstat(abs); err == nil {
// We found it! Return the path relative to the root.
return filepath.Join("/", p, exec), nil
}