feat(sockutls): Add initial support for socket helpers

components/sock_utils/include/gai_strerror.h

@@ -0,0 +1,31 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#pragma once
+
+#include "lwip/sockets.h"
+#include "netdb_macros.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef CONFIG_IDF_TARGET_LINUX
+// namespace with esp_ on linux to avoid duplication of symbols
+#define gai_strerror esp_gai_strerror
+#endif
+
+/**
+* @brief Returns a numeric string representing of `getaddrinfo()` error code.
+*
+* @param[in] ecode Error code returned by `getaddrinfo()`.
+*
+* @return A pointer to a string describing the error.
+*/
+const char *gai_strerror(int ecode);
+
+#ifdef __cplusplus
+}
+#endif