LWIP UDP Echo Server with RAW API

lwip_udpecho_raw_server.c

/*
 * author : Iwan Budi Kusnanto (ibk@labhijau.net)
 */
#include "lwip/api.h"
#include "lwip/sys.h"
#include "lwip/udp.h"

#include "udpecho_raw_server.h"

static void udpecho_raw_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, struct ip_addr *addr, u16_t port)
{
	LWIP_UNUSED_ARG(arg);
	if(p == NULL)
		return;
	
	udp_sendto(pcb, p, addr, port);
	pbuf_free(p);
}
/*-----------------------------------------------------------------------------------*/
void udpecho_raw_server_init(u16_t port)
{
	struct udp_pcb *pcb;
	
	printf("%s() ..........\n", __func__);

	pcb = udp_new();
	udp_bind(pcb, IP_ADDR_ANY, port);

	/* no need to loop forever */
	udp_recv(pcb , udpecho_raw_recv, pcb);
}

What is your "udpecho_raw_server.h" file... can you share it ?

hi, what is your "udpecho_raw_server.h" in it?