警告：函数“ sendto”的隐式声明

Question

I have following problem:

warning: implicit declaration of function ‘sendto’

on line in variable outputCounterByte :

outputCounterByte += sendto(server_socket, outputBuff, offSet, 0, (struct sockaddr*) remote_addr, server_addr_len);

I don't understand this, where is a problem? OutputCouterByte is on value 0, and other variables are defined. I have included all headers(prototype of function). In other functions it is working.

Answer 1

You need to include

#include <sys/types.h>
#include <sys/socket.h>

to provide the function prototype.