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🚧 Add SSL stuff to client

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This commit is contained in:
Simon V. Lejel 2024-02-11 15:24:59 +01:00
parent 2089be370e
commit 8031543062
Signed by: sl
GPG key ID: 6544A0430A2CFFAD
1 changed files with 39 additions and 3 deletions
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42
src/client/main.cc
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@ -1,13 +1,18 @@
#include <arpa/inet.h>
#include <cstring>
#include <iostream>
#include <netinet/in.h>
#include <openssl/err.h>
#include <openssl/ssl.h>
#include <ostream>
#include <sys/socket.h>
#include <unistd.h>
using std::cout, std::cin, std::endl, std::string;
/*
* Remember to build with the flags "-L/usr/lib -lssl -lcrypto"
*/
int main() {
struct Message {
@ -19,7 +24,30 @@ int main() {
}
};
// Initialize OpenSSL
SSL_library_init();
SSL_load_error_strings();
// Create new SSL context
SSL_CTX *ctx = SSL_CTX_new(TLS_client_method());
if (!ctx) {
// TODO Handle error
}
// Load the server's certificate into context
if (SSL_CTX_load_verify_locations(
ctx, "~/git/mogens_og_karen/ssl/server.crt", nullptr) <= 0) {
// TODO Handle error
}
// Create SSL object
SSL *ssl = SSL_new(ctx);
if (!ssl) {
// TODO Handle error
}
int clientSocket = socket(AF_INET, SOCK_STREAM, 0);
SSL_set_fd(ssl, clientSocket);
sockaddr_in serverAdress;
serverAdress.sin_family = AF_INET;
@ -35,6 +63,11 @@ int main() {
cout << "CONNECTED!" << endl;
}
// Perform SSL handshake
if (SSL_connect(ssl) != 1) {
// TODO Handle error
}
while (true) {
Message message;
cout << "Type message to server: ";
@ -48,10 +81,13 @@ int main() {
cout << endl;
message.username = "Client 1";
send(clientSocket, message.toString().data(),
strlen(message.toString().data()), 0);
SSL_write(ssl, message.toString().data(), 0);
}
// Clean up
SSL_free(ssl);
SSL_CTX_free(ctx);
ERR_free_strings();
close(clientSocket);
return 0;