C++ echo server (single client)

server.cpp

#include <stdio.h> 
#include <string.h>   //strlen 
#include <stdlib.h> 
#include <errno.h> 
#include <unistd.h>   //close 
#include <arpa/inet.h>    //close 
#include <sys/types.h> 
#include <sys/socket.h> 
#include <netinet/in.h> 


#define PORT 8888
#define INPUT_BUFFER_SIZE 3

char inputBuffer[INPUT_BUFFER_SIZE];
int listen_fd, comm_fd;

struct sockaddr_in servaddr;

int main() {


    listen_fd = socket(AF_INET, SOCK_STREAM, 0);

    bzero(&servaddr, sizeof (servaddr));

    servaddr.sin_family = AF_INET;
    servaddr.sin_addr.s_addr = htons(INADDR_ANY);
    servaddr.sin_port = htons(PORT);

    bind(listen_fd, (struct sockaddr *) &servaddr, sizeof (servaddr));

    listen(listen_fd, 10);

    comm_fd = accept(listen_fd, (struct sockaddr*) NULL, NULL);

    while (1) {

        bzero(inputBuffer, INPUT_BUFFER_SIZE);

        read(comm_fd, inputBuffer, INPUT_BUFFER_SIZE);

        printf("Echoing back - %s", inputBuffer);

        write(comm_fd, inputBuffer, strlen(inputBuffer) + 1);

    }
}