Make ':' a restricted character for file names

file names for podman load, save, export, and import cannot
contain ":" in them. It is a reserved character for parsing
filenames.

Signed-off-by: umohnani8 <umohnani@redhat.com>

Closes: #694
Approved by: rhatdan

1 files changed, 9 insertions, 0 deletions

diff --git a/cmd/podman/parse.go b/cmd/podman/parse.go
index b70e0caf7..484b9723f 100644
--- a/cmd/podman/parse.go
+++ b/cmd/podman/parse.go
@@ -816,3 +816,12 @@ func getLoggingPath(opts []string) string {
 	}
 	return ""
 }
+
+// validateFileName returns an error if filename contains ":"
+// as it is currently not supported
+func validateFileName(filename string) error {
+	if strings.Contains(filename, ":") {
+		return errors.Errorf("invalid filename (should not contain ':') %q", filename)
+	}
+	return nil
+}