#define commandv(out,err,argv) commandvf((out),(err),0,(argv))
#define commandrv(out,err,argv) commandrvf((out),(err),0,(argv))
-#define COMMAND_FLAG_FOLD_STDOUT_ON_STDERR 1
+#define COMMAND_FLAG_FD_MASK (1024-1)
+#define COMMAND_FLAG_FOLD_STDOUT_ON_STDERR 1024
+#define COMMAND_FLAG_CHROOT_COPY_FILE_TO_STDIN 2048
extern int commandf (char **stdoutput, char **stderror, int flags,
const char *name, ...);