#include<stdio.h> #include<unistd.h> #include<sys/socket.h> #include<sys/types.h> #include<string.h> #include<netinet/ip.h> #include<arpa/inet.h>
#define SERVER_PORT 1096
#define SERVER_IP_ADDRESS "127.0.0.1"
void send_message(int socket_descriptor) {
struct in_addr network_address; if(!inet_aton(SERVER_IP_ADDRESS,&network_address))
perror("inet_aton");
struct sockaddr_in server_address = { .sin_family = AF_INET,
.sin_port = SERVER_PORT, .sin_addr = network_address
};
const char *message = "Komunikat przesłany przez sieć."; if(sendto(socket_descriptor,message,strlen(message),0,
(struct sockaddr *)&server_address,sizeof(server_address))<0) perror("sendto");
}
int main(void) {
}
int socket_descriptor = socket(AF_INET, SOCK_DGRAM, 0); if(socket_descriptor<0)
perror("socket"); send_message(socket_descriptor);
if(close(socket_descriptor)<0) perror("close");
return 0;
 Lis