// Source: http://shirleyanengineer.blogspot.com/2019/11/socket-socket-programming-in-linux-os.html
// Client side C/C++ program to demonstrate Socket programming

#include <stdio.h>
#include <sys/socket.h> // AF_INET and SOCK_STREAM
#include <arpa/inet.h>  // storage size of serv_addr
#include <unistd.h>     // getpid, getppid, fork
#include <string.h>     // bzero

#define PORT 8080

int main(int argc, char const *argv[]) {
    int sock = 0, valread;
    struct sockaddr_in serv_addr;
    char *hello = "Hello from client";
    char buffer[1024] = {0};
    if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
        printf("\n Socket creation error \n");
        return -1; }

    serv_addr.sin_family = AF_INET;
    serv_addr.sin_port = htons(PORT);

    // Convert IPv4 and IPv6 addresses from text to binary form
    if (inet_pton(AF_INET, "127.0.0.1", &serv_addr.sin_addr)<=0) {
        printf("\nInvalid address/ Address not supported \n");
        return -1; }

    if (connect(sock, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0) {
        printf("\nConnection Failed \n");
        return -1; }
        
    send(sock , hello , strlen(hello) , 0 );
    printf("Hello message sent\n");
    //valread = read( sock , buffer, 1024);
    //printf("%s\n",buffer );
    return 0; }