DSIK_project/avatarServer.c

#include <unistd.h>
#include <stdio.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <string.h>
#include <fcntl.h>
#include <time.h>

#define PORT 8080

int main(int argc, char const *argv[])
{
    int server_fd, new_socket, read_avatar;
    struct sockaddr_in address;
    int opt = 1;
    int addrlen = sizeof(address);
    char buffer[1024];
    char *overMessage = "over";
    char files[3][64] = {{"assets/test.jpg"}, {"assets/test1.jpg"}, {"assets/test2.jpg"}};
    srand(time(NULL));

    // Creating socket file descriptor
    if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0)
    {
        perror("socket failed");
        exit(EXIT_FAILURE);
    }

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

    // Forcefully attaching socket to the port 8080
    if (bind(server_fd, (struct sockaddr *)&address,
             sizeof(address)) < 0)
    {
        perror("bind failed");
        exit(EXIT_FAILURE);
    }
    printf("bind\n");
    if (listen(server_fd, 3) < 0)
    {
        perror("listen");
        exit(EXIT_FAILURE);
    }
    printf("listening\n");
    if ((new_socket = accept(server_fd, (struct sockaddr *)&address,
                             (socklen_t *)&addrlen)) < 0)
    {
        perror("accept");
        exit(EXIT_FAILURE);
    }
    printf("accepted\n");
    int avatar_fd = open(files[rand() % 3], O_RDONLY);
    if (avatar_fd < 0)
    {
        return -1;
    }
    while ((read_avatar = read(avatar_fd, buffer, sizeof(buffer))) > 0)
    {
        printf("%d\n", read_avatar);
        send(new_socket, buffer, sizeof(buffer), 0);
    }
    send(new_socket, overMessage, sizeof(overMessage), 0);

    close(server_fd);
    close(new_socket);
    return 0;
}