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author | Daniel J Walsh <dwalsh@redhat.com> | 2020-09-17 16:16:53 -0400 |
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committer | Daniel J Walsh <dwalsh@redhat.com> | 2020-09-17 16:20:10 -0400 |
commit | 8d3c7b4202ac0151417064b89dc35ae6717f2875 (patch) | |
tree | a99d665aa6ea1ce7c47fcc20cb2d8e549807380d /vendor/github.com/moby/sys/mountinfo/mounted_unix.go | |
parent | f84f441bec8d4ad6b6dfce059ca71dbd2b0d9615 (diff) | |
download | podman-8d3c7b4202ac0151417064b89dc35ae6717f2875.tar.gz podman-8d3c7b4202ac0151417064b89dc35ae6717f2875.tar.bz2 podman-8d3c7b4202ac0151417064b89dc35ae6717f2875.zip |
Bump github.com/rootless-containers/rootlesskit from 0.10.0 to 0.10.1
Bumps [github.com/rootless-containers/rootlesskit](https://github.com/rootless-containers/rootlesskit) from 0.10.0 to 0.10.1.
- [Release notes](https://github.com/rootless-containers/rootlesskit/releases)
- [Commits](https://github.com/rootless-containers/rootlesskit/compare/v0.10.0...v0.10.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Diffstat (limited to 'vendor/github.com/moby/sys/mountinfo/mounted_unix.go')
-rw-r--r-- | vendor/github.com/moby/sys/mountinfo/mounted_unix.go | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/vendor/github.com/moby/sys/mountinfo/mounted_unix.go b/vendor/github.com/moby/sys/mountinfo/mounted_unix.go new file mode 100644 index 000000000..c4d66b2f4 --- /dev/null +++ b/vendor/github.com/moby/sys/mountinfo/mounted_unix.go @@ -0,0 +1,66 @@ +// +build linux freebsd,cgo + +package mountinfo + +import ( + "errors" + "fmt" + "os" + "path/filepath" + + "golang.org/x/sys/unix" +) + +func mountedByStat(path string) (bool, error) { + var st unix.Stat_t + + if err := unix.Lstat(path, &st); err != nil { + if err == unix.ENOENT { + // Treat ENOENT as "not mounted". + return false, nil + } + return false, &os.PathError{Op: "stat", Path: path, Err: err} + } + dev := st.Dev + parent := filepath.Dir(path) + if err := unix.Lstat(parent, &st); err != nil { + return false, &os.PathError{Op: "stat", Path: parent, Err: err} + } + if dev != st.Dev { + // Device differs from that of parent, + // so definitely a mount point. + return true, nil + } + // NB: this does not detect bind mounts on Linux. + return false, nil +} + +func normalizePath(path string) (realPath string, err error) { + if realPath, err = filepath.Abs(path); err != nil { + return "", fmt.Errorf("unable to get absolute path for %q: %w", path, err) + } + if realPath, err = filepath.EvalSymlinks(realPath); err != nil { + return "", fmt.Errorf("failed to canonicalise path for %q: %w", path, err) + } + if _, err := os.Stat(realPath); err != nil { + return "", fmt.Errorf("failed to stat target of %q: %w", path, err) + } + return realPath, nil +} + +func mountedByMountinfo(path string) (bool, error) { + path, err := normalizePath(path) + if err != nil { + if errors.Is(err, unix.ENOENT) { + // treat ENOENT as "not mounted" + return false, nil + } + return false, err + } + entries, err := GetMounts(SingleEntryFilter(path)) + if err != nil { + return false, err + } + + return len(entries) > 0, nil +} |