Initial Commit v0.1.0

1 files changed, 38 insertions, 0 deletions

diff --git a/paths.go b/paths.go
new file mode 100644
index 0000000..2a3986e
--- /dev/null
+++ b/paths.go
@@ -0,0 +1,38 @@
+// Package lynx is a simple wrapper to unveil.
+package lynx
+
+import "golang.org/x/sys/unix"
+
+// UnveilPaths takes a map of path, permission & unveils them one by
+// one, it will return an error if unveil fails at any step. "no such
+// file or directory" error is ignored.
+func UnveilPaths(paths map[string]string) error {
+	for k, v := range paths {
+		err := unix.Unveil(k, v)
+
+		// "no such file or directory" error is ignored.
+		if err != nil && err.Error() != "no such file or directory" {
+			// Better error message could be returned like
+			// one that includes the path on which unveil
+			// failed.
+			return err
+		}
+	}
+	// Returning nil because err can be "no such file or
+	// directory" which needs to be ignored.
+	return nil
+}
+
+// UnveilPathsStrict takes a map of path, permission & unveils them
+// one by one, it will return an error if unveil fails at any steop.
+// No error is ignored.
+func UnveilPathsStrict(paths map[string]string) (err error) {
+	for k, v := range paths {
+		err = unix.Unveil(k, v)
+
+		if err != nil {
+			return
+		}
+	}
+	return
+}