cmd: Migrate from_env() from pxe.c to nvedit.c
Migrate from_env() from pxe.c to nvedit.c as it's not pxe specific.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
diff --git a/include/env.h b/include/env.h
index b72239f..d6c2d75 100644
--- a/include/env.h
+++ b/include/env.h
@@ -113,6 +113,16 @@
*/
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)
*