Display image from web server in C

I am coding a web server on C. I am able to view HTML and txt files however I am unable to view image files.

All I get is a error "The image “http://localhost:8080/images/image.jpg” cannot be displayed because it contains errors."

char response[200000];

int main()
{
    int client_fd;
    char ch, text[256];
    char buf[4096];
    char method[4096];
    char url[4096];
    char protocol[4096];
    ssize_t bytes_read;
    FILE *f;
    struct sockaddr_in svr_addr, cli_addr;
    socklen_t sin_len = sizeof(cli_addr);

    int sock = socket(AF_INET, SOCK_STREAM, 0);
    if (sock < 0)
        err(1, "can't open socket");

    setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(int));

    int port = 8080;
    svr_addr.sin_family = AF_INET;
    svr_addr.sin_addr.s_addr = INADDR_ANY;
    svr_addr.sin_port = htons(port);


    if (bind(sock, (struct sockaddr *) &svr_addr, sizeof(svr_addr)) == -1) 
    {
        close(sock);
        err(1, "Can't bind");
    }

    listen(sock, 5);

    client_fd = accept(sock, (struct sockaddr *) &cli_addr, &sin_len);
    bytes_read = read(client_fd, buf, sizeof(buf) - 1);
    buf[bytes_read] = '\0';
    sscanf (buf, "%s %s %s", method, url, protocol);

    if (client_fd == -1) 
    {
      perror("Can't accept");
    }

    if(strstr(method, "GET") != NULL)
    {
        f = fopen(url+1, "r");

        if(f != NULL)
        {
            strncat(response, "HTTP/1.1 200 OK\r\n", 20);

            if(strstr(url, ".html") || strstr(url, ".htm"))
            {
                strncat(response, "Content-Type: text/html\r\n\r\n", 30); 
            }

            else if(strstr(url, ".txt"))
            {
                strncat(response, "Content-Type: text/plain\r\n\r\n", 30); 
            }

            else if(strstr(url, ".jpg") || strstr(url, ".jpeg"))
            {
                strncat(response, "Content-Type: image/jpeg\r\n\r\n", 30); 
            }

            fseek(f, 0, SEEK_END);
            one = ftell(f);
            rewind(f);
            while(fgets(text, 80, f) != NULL)
            {   

                strncat(response, text, strlen(text));
            }

            write(client_fd, response, strlen(response)); /*-1:'\0'*/
            fclose(f);
        }

        else
        {
            write(client_fd, not_found_response, strlen(not_found_response)); /*-1:'\0'*/
        } 
    }

    else
    {
        write(client_fd, bad_request_response, strlen(bad_request_response)); /*-1:'\0'*/
    }

    close(client_fd);
}