added test client

client/main.c

@@ -0,0 +1,49 @@
+//
+// Created by k0rb4k on 22/04/2021.
+//
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdio.h>
+
+int main(int argc, char *argv[]) {
+    struct sockaddr_in server;
+    int sock;
+
+    server.sin_family = AF_INET;
+    server.sin_addr.s_addr = inet_addr("127.0.0.1");
+    server.sin_port = htons(17);
+
+    sock = socket(server.sin_family, SOCK_STREAM, IPPROTO_IP);
+    if (sock == -1) {
+        puts("socket not created");
+        return 1;
+    }
+
+    if (connect(sock, (const struct sockaddr *) &server, sizeof(server)) < 0) {
+        puts("connection failed");
+        return 2;
+    }
+
+    char *payload = "I dream of sushi";
+    if (send(sock, payload, strlen(payload), 0) < 0) {
+        puts("error while sending payload");
+        return 3;
+    }
+
+    char response[2048];
+    if (recv(sock, response, 2048, 0)) {
+        puts("receive failed");
+        return 4;
+    }
+    puts("server response :");
+    puts(response);
+
+    close(sock);
+
+    return 0;
+}