/* ... */
/* ... */
#include "lwip/netdb.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef ESP_PLATFORM
int getnameinfo(const struct sockaddr *addr, socklen_t addrlen,
char *host, socklen_t hostlen,
char *serv, socklen_t servlen, int flags);
/* ... */
#endif
#ifdef __cplusplus
}{...}
#endif