#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#define PORT 8080
#define MAX_BUFFER_SIZE 1024
int main () {
int server_socket, client_socket;
struct sockaddr_in server_addr , client_addr ;char buffer[MAX_BUFFER_SIZE];
if ((server_socket = socket(AF_INET, SOCK_STREAM, 0 )) == -1 ) {
perror("Erro ao criar o socket" );
exit (EXIT_FAILURE);
}
server_addr.sin_family = AF_INET;
server_addr.sin_addr.s_addr = INADDR_ANY;
server_addr.sin_port = htons(PORT);
if (bind(server_socket, (struct sockaddr*)&server_addr, sizeof (server_addr)) == -1 ) {
perror("Erro ao associar o socket ao endereço" );
exit (EXIT_FAILURE);
}
if (listen(server_socket, 5 ) == -1 ) {
perror("Erro ao colocar o socket em modo de escuta" );
exit (EXIT_FAILURE);
}
printf ("Servidor escutando na porta %d...\n" , PORT);
socklen_t client_addr_len = sizeof (client_addr);
if ((client_socket = accept(server_socket, (struct sockaddr*)&client_addr, &client_addr_len)) == -1 ) {
perror("Erro ao aceitar a conexão do cliente" );
exit (EXIT_FAILURE);
}
printf ("Cliente conectado: %s\n" , inet_ntoa(client_addr.sin_addr));
while (1 ) {
ssize_t bytes_received = recv(client_socket, buffer, MAX_BUFFER_SIZE, 0 );
if (bytes_received <= 0 ) {
printf ("Conexão encerrada pelo cliente.\n" );
break ;
}
printf ("Recebido: %s" , buffer);
send(client_socket, buffer, bytes_received, 0 );
memset (buffer, 0 , sizeof (buffer));
}
close(client_socket);
close(server_socket);
return 0 ;
}
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