+static int
+print_sysroot_shell_quote (FILE *stream,
+ const struct printf_info *info,
+ const void *const *args)
+{
+#define SAFE(c) (isalnum((c)) || \
+ (c) == '/' || (c) == '-' || (c) == '_' || (c) == '.')
+ fputs (sysroot, stream);
+ return sysroot_len + print_shell_quote (stream, info, args);
+}
+
+#ifdef HAVE_REGISTER_PRINTF_SPECIFIER
+static int
+print_arginfo (const struct printf_info *info,
+ size_t n, int *argtypes, int *size)
+{
+ if (n > 0) {
+ argtypes[0] = PA_STRING;
+ size[0] = sizeof (const char *);
+ }
+ return 1;
+}
+#else
+#ifdef HAVE_REGISTER_PRINTF_FUNCTION
+static int
+print_arginfo (const struct printf_info *info, size_t n, int *argtypes)
+{
+ if (n > 0)
+ argtypes[0] = PA_STRING;
+ return 1;
+}
+#else
+#error "HAVE_REGISTER_PRINTF_{SPECIFIER|FUNCTION} not defined"
+#endif
+#endif
+
+/* Perform device name translation. Don't call this directly -
+ * use the IS_DEVICE macro.
+ *
+ * See guestfs(3) for the algorithm.
+ *
+ * We have to open the device and test for ENXIO, because
+ * the device nodes themselves will exist in the appliance.
+ */
+int
+device_name_translation (char *device, const char *func)
+{
+ int fd;
+
+ fd = open (device, O_RDONLY);
+ if (fd >= 0) {
+ close (fd);
+ return 0;
+ }