#ifndef __ENV_H
#define __ENV_H
+#include <compiler.h>
#include <stdbool.h>
#include <linux/types.h>
*/
char *env_get(const char *varname);
+/*
+ * Like env_get, but prints an error if envvar isn't defined in the
+ * environment. It always returns what env_get does, so it can be used in
+ * place of env_get without changing error handling otherwise.
+ *
+ * @varname: Variable to look up
+ * @return value of variable, or NULL if not found
+ */
+char *from_env(const char *envvar);
+
/**
* env_get_f() - Look up the value of an environment variable (early)
*