diff --git a/include/re_fmt.h b/include/re_fmt.h
index 0660ad960..bb08344dd 100644
--- a/include/re_fmt.h
+++ b/include/re_fmt.h
@@ -105,6 +105,7 @@ uint8_t ch_hex(char ch);
 
 
 /* String functions */
+int  str_bool(bool *val, const char *str);
 int  str_hex(uint8_t *hex, size_t len, const char *str);
 void str_ncpy(char *dst, const char *src, size_t n);
 int  str_dup(char **dst, const char *src);
diff --git a/src/fmt/str.c b/src/fmt/str.c
index 37981af36..228f020c5 100644
--- a/src/fmt/str.c
+++ b/src/fmt/str.c
@@ -140,3 +140,56 @@ size_t str_len(const char *s)
 {
 	return s ? strlen(s) : 0;
 }
+
+
+/**
+ * Convert various possible boolean strings to a bool
+ *
+ * @param val  Pointer to bool for returned value
+ * @param str  String to be converted
+ *
+ * @return int 0 if success, otherwise errorcode
+ */
+int str_bool(bool *val, const char *str)
+{
+	int err = 0;
+
+	if (!val || !str_isset(str))
+		return EINVAL;
+
+	if (!str_cmp(str, "0")) {
+		*val = false;
+	}
+	else if (!str_cmp(str, "1")) {
+		*val = true;
+	}
+	else if (!str_cmp(str, "false")) {
+		*val = false;
+	}
+	else if (!str_cmp(str, "true")) {
+		*val = true;
+	}
+	else if (!str_cmp(str, "disable")) {
+		*val = false;
+	}
+	else if (!str_cmp(str, "enable")) {
+		*val = true;
+	}
+	else if (!str_cmp(str, "off")) {
+		*val = false;
+	}
+	else if (!str_cmp(str, "on")) {
+		*val = true;
+	}
+	else if (!str_cmp(str, "no")) {
+		*val = false;
+	}
+	else if (!str_cmp(str, "yes")) {
+		*val = true;
+	}
+	else {
+		err = EINVAL;
+	}
+
+	return err;
+}