client: Check CID is set to eacl table in ContainerSetEACL command

Signed-off-by: Evgenii Baidakov <evgenii@nspcc.io>

client/container.go

@@ -602,7 +602,7 @@ type PrmContainerSetEACL struct {
 }
 
 // SetTable sets eACL table structure to be set for the container.
-// Required parameter.
+// Required parameter and CID must be set inside the table.
 func (x *PrmContainerSetEACL) SetTable(table eacl.Table) {
 	x.table = table
 	x.tableSet = true
@@ -656,6 +656,11 @@ func (c *Client) ContainerSetEACL(ctx context.Context, prm PrmContainerSetEACL)
 		panic("eACL table not set")
 	}
 
+	_, isCIDSet := prm.table.CID()
+	if !isCIDSet {
+		return nil, errors.New("missing container in eACL table")
+	}
+
 	// sign the eACL table
 	eaclV2 := prm.table.ToV2()