mirror of
https://github.com/espressif/esp-protocols.git
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57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/*
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* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include "lwip/sockets.h"
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#include "netdb_macros.h"
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// include also other related headers to simplify porting of linux libs
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#include "getnameinfo.h"
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#include "socketpair.h"
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#include "gai_strerror.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef CONFIG_IDF_TARGET_LINUX
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// namespace with esp_ on linux to avoid duplication of symbols
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#define getifaddrs esp_getifaddrs
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#define freeifaddrs esp_freeifaddrs
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#endif
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/**
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* @brief Simplified version of ifaddr struct
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*/
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struct ifaddrs {
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struct ifaddrs *ifa_next; /* Next item in list */
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char *ifa_name; /* Name of interface */
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struct sockaddr *ifa_addr; /* Address of interface */
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unsigned int ifa_flags;
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};
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/**
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* @brief Retrieves a list of network interfaces and their addresses.
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*
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* @param[out] ifap Pointer to a linked list of `struct ifaddrs`. On success, `*ifap` will be set
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* to the head of the list.
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*
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* @return
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* - 0 on success.
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* - -1 on failure, with `errno` set to indicate the error.
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*/
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int getifaddrs(struct ifaddrs **ifap);
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/**
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* @brief Frees the memory allocated by `getifaddrs()`.
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*
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* @param[in] ifa Pointer to the linked list of network interfaces to be freed.
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*/
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void freeifaddrs(struct ifaddrs *ifa);
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#ifdef __cplusplus
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}
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#endif
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