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Diffstat (limited to 'vendor/github.com/cyphar/filepath-securejoin/join.go')
-rw-r--r--vendor/github.com/cyphar/filepath-securejoin/join.go25
1 files changed, 3 insertions, 22 deletions
diff --git a/vendor/github.com/cyphar/filepath-securejoin/join.go b/vendor/github.com/cyphar/filepath-securejoin/join.go
index c4ca3d713..7dd08dbbd 100644
--- a/vendor/github.com/cyphar/filepath-securejoin/join.go
+++ b/vendor/github.com/cyphar/filepath-securejoin/join.go
@@ -12,39 +12,20 @@ package securejoin
import (
"bytes"
+ "errors"
"os"
"path/filepath"
"strings"
"syscall"
-
- "github.com/pkg/errors"
)
-// ErrSymlinkLoop is returned by SecureJoinVFS when too many symlinks have been
-// evaluated in attempting to securely join the two given paths.
-var ErrSymlinkLoop = errors.Wrap(syscall.ELOOP, "secure join")
-
// IsNotExist tells you if err is an error that implies that either the path
// accessed does not exist (or path components don't exist). This is
// effectively a more broad version of os.IsNotExist.
func IsNotExist(err error) bool {
- // If it's a bone-fide ENOENT just bail.
- if os.IsNotExist(errors.Cause(err)) {
- return true
- }
-
// Check that it's not actually an ENOTDIR, which in some cases is a more
// convoluted case of ENOENT (usually involving weird paths).
- var errno error
- switch err := errors.Cause(err).(type) {
- case *os.PathError:
- errno = err.Err
- case *os.LinkError:
- errno = err.Err
- case *os.SyscallError:
- errno = err.Err
- }
- return errno == syscall.ENOTDIR || errno == syscall.ENOENT
+ return errors.Is(err, os.ErrNotExist) || errors.Is(err, syscall.ENOTDIR) || errors.Is(err, syscall.ENOENT)
}
// SecureJoinVFS joins the two given path components (similar to Join) except
@@ -68,7 +49,7 @@ func SecureJoinVFS(root, unsafePath string, vfs VFS) (string, error) {
n := 0
for unsafePath != "" {
if n > 255 {
- return "", ErrSymlinkLoop
+ return "", &os.PathError{Op: "SecureJoin", Path: root + "/" + unsafePath, Err: syscall.ELOOP}
}
// Next path component, p.