--- /dev/null
+
+#include <stdio.h>
+#include <string.h>
+
+#include <talloc/talloc.h>
+#include <array-size/array-size.h>
+
+#include "grub2.h"
+
+
+static int builtin_set(struct grub2_script *script, int argc, char *argv[])
+{
+ char *name, *value, *p;
+ int i;
+
+ if (argc < 2)
+ return -1;
+
+ p = strchr(argv[1], '=');
+ if (!p)
+ return -1;
+
+ name = talloc_strndup(script, argv[1], p - argv[1]);
+ value = talloc_strdup(script, p+1);
+
+ for (i = 2; i < argc; i++)
+ value = talloc_asprintf_append(value, " %s", argv[i]);
+
+ script_env_set(script, name, value);
+
+ return 0;
+}
+
+static struct grub2_command commands[] = {
+ {
+ .name = "set",
+ .exec = builtin_set
+ },
+};
+
+void register_builtins(struct grub2_script *script)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(commands); i++)
+ script_register_command(script, &commands[i]);
+}