I'm trying to set up the server and client model shipped with openssl v0.9.5a.
for win2000
The server application returns SSL_accept = 0 when the client does
SSL_connect. But the client returns SSL_connect = -1. Why?
Please if you got time, can anyone give me a hint on how to leap over this
obstacle?
Is there any other functioning client & server program which I could take part
of?
I’ve append parts of the client and the server applications downunder.
Thanks for taking time to answer this letter,
Roger Furtenheim
CLIENT APPLICATION:
/* cli.cpp - Minimal ssleay client for Unix
30.9.1996, Sampo Kellomaki <[EMAIL PROTECTED]> */
/* mangled to work with SSLeay-0.9.0b and OpenSSL 0.9.2b
Simplified to be even more minimal
12/98 - 4/99 Wade Scholine <[EMAIL PROTECTED]> */
#define HOME "./"
#define CERTF HOME "client.pem"
#define KEYF HOME "client.pem"
#define CHK_NULL(x) if (( x )==NULL) { exit (1);
}
#define CHK_ERR(err,s) if ((err)==-1 ) { perror(s); exit(1);
}
#define CHK_SSL(err) if ((err)==-1 ) { ERR_print_errors_fp(stderr);
exit(2); }
void main ()
{
int err;
int sd;
struct sockaddr_in sa;
SSL_CTX* ctx;
SSL* ssl;
X509* server_cert;
char* str;
char buf [4096];
SSL_METHOD *meth;
SSLeay_add_ssl_algorithms();
meth = SSLv2_client_method();
SSL_load_error_strings();
ctx = SSL_CTX_new (meth); CHK_NULL(ctx);
if (!ctx)
{
ERR_print_errors_fp(stderr);
exit(2);
}
if (SSL_CTX_use_certificate_file(ctx, CERTF, SSL_FILETYPE_PEM) <= 0)
{
ERR_print_errors_fp(stderr);
exit(3);
}
if (SSL_CTX_use_PrivateKey_file(ctx, KEYF, SSL_FILETYPE_PEM) <= 0)
{
ERR_print_errors_fp(stderr);
exit(4);
}
if (!SSL_CTX_check_private_key(ctx))
{
fprintf(stderr,"Private key does not match the certificate public
key\n");
exit(5);
}
/* ----------------------------------------------- */
/* Create a socket and connect to server using normal socket calls. */
sockInit();
sd = socket (AF_INET, SOCK_STREAM, 0); CHK_ERR(sd, "socket");
memset (&sa, '\0', sizeof(sa));
sa.sin_family = AF_INET;
sa.sin_addr.s_addr = inet_addr ("127.0.0.1"); /* Server IP
*/
sa.sin_port = htons (1111); /* Server Port number */
err = connect(sd,
(struct sockaddr*) &sa,
sizeof(sa));
CHK_ERR(err, "connect");
/* ----------------------------------------------- */
/* Now we have TCP conncetion. Start SSL negotiation. */
ssl = SSL_new (ctx);
CHK_NULL(ssl);
printf("SSL_set_fd: %d\n", SSL_set_fd (ssl, sd));
err = SSL_connect (ssl);
printf("SSL_connect: %d\n", err);
CHK_SSL(err);
/* Following two steps are optional and not required for
data exchange to be successful. */
/* Get the cipher - opt */
printf ("SSL connection using %s\n", SSL_get_cipher (ssl));
/* Get server's certificate (note: beware of dynamic allocation) - opt */
server_cert = SSL_get_peer_certificate (ssl); CHK_NULL(server_cert);
printf ("Server certificate:\n");
str = X509_NAME_oneline (X509_get_subject_name (server_cert),0,0);
CHK_NULL(str);
printf ("\t subject: %s\n", str);
Free (str);
str = X509_NAME_oneline (X509_get_issuer_name (server_cert),0,0);
CHK_NULL(str);
printf ("\t issuer: %s\n", str);
Free (str);
/* We could do all sorts of certificate verification stuff here before
deallocating the certificate. */
X509_free (server_cert);
/* --------------------------------------------------- */
/* DATA EXCHANGE - Send a message and receive a reply. */
err = SSL_write (ssl, "Hello World!", strlen("Hello World!"));
CHK_SSL(err);
err = SSL_read (ssl, buf, sizeof(buf) - 1);
CHK_SSL(err);
buf[err] = '\0';
printf ("Got %d chars:'%s'\n", err, buf);
SSL_shutdown (ssl); /* send SSL/TLS close_notify */
/* Clean up. */
closesocket (sd);
SSL_free (ssl);
SSL_CTX_free (ctx);
}
SERVER APPLICATION:
/* serv.cpp - Minimal ssleay server for Unix
30.9.1996, Sampo Kellomaki <[EMAIL PROTECTED]> */
/* mangled to work with SSLeay-0.9.0b and OpenSSL 0.9.2b
Simplified to be even more minimal
12/98 - 4/99 Wade Scholine <[EMAIL PROTECTED]> */
#define HOME "./"
#define CERTF HOME "server.pem"
#define KEYF HOME "server.pem"
#define CHK_NULL(x) if ((x)==NULL) exit (1)
#define CHK_ERR(err,s) if ((err)==-1) { perror(s); exit(1); }
#define CHK_SSL(err) if ((err)==-1) { ERR_print_errors_fp(stderr); exit(2); }
void main ()
{
int err;
int listen_sd;
int sd;
struct sockaddr_in sa_serv;
struct sockaddr_in sa_cli;
size_t client_len;
SSL_CTX* ctx;
SSL* ssl;
X509* client_cert;
char* str;
char buf [4096];
SSL_METHOD *meth;
/* SSL preliminaries. We keep the certificate and key with the context. */
SSL_load_error_strings();
SSLeay_add_ssl_algorithms();
meth = SSLv23_server_method();
ctx = SSL_CTX_new (meth);
if (!ctx) {
ERR_print_errors_fp(stderr);
exit(2);
}
if (SSL_CTX_use_certificate_file(ctx, CERTF, SSL_FILETYPE_PEM) <= 0) {
ERR_print_errors_fp(stderr);
exit(3);
}
if (SSL_CTX_use_PrivateKey_file(ctx, KEYF, SSL_FILETYPE_PEM) <= 0) {
ERR_print_errors_fp(stderr);
exit(4);
}
if (!SSL_CTX_check_private_key(ctx)) {
fprintf(stderr,"Private key does not match the certificate public
key\n");
exit(5);
}
/* ----------------------------------------------- */
/* Prepare TCP socket for receiving connections */
sockInit();
listen_sd = socket (AF_INET, SOCK_STREAM, 0);
if(listen_sd == INVALID_SOCKET) {
printf("Can't create socket\n");
sockEnd();
return;
}
CHK_ERR(listen_sd, "socket");
memset (&sa_serv, '\0', sizeof(sa_serv));
sa_serv.sin_family = AF_INET;
sa_serv.sin_addr.s_addr = INADDR_ANY;
sa_serv.sin_port = htons (1111); /* Server Port number */
err = bind(listen_sd, (struct sockaddr*) &sa_serv,
sizeof (sa_serv)); CHK_ERR(err, "bind");
/* Receive a TCP connection. */
err = listen (listen_sd, 5); CHK_ERR(err, "listen");
client_len = sizeof(sa_cli);
sd = accept (listen_sd, (struct sockaddr*) &sa_cli, &client_len);
CHK_ERR(sd, "accept");
closesocket (listen_sd);
printf ("Connection from %lx, port %x\n",
sa_cli.sin_addr.s_addr, sa_cli.sin_port);
/* ----------------------------------------------- */
/* TCP connection is ready. Do server side SSL. */
ssl = SSL_new (ctx); CHK_NULL(ssl);
// Set association between SSL and underlying file descriptor
printf("SSL_set_fd: %d\n",SSL_set_fd (ssl, sd));
err = SSL_accept (ssl);
printf("SSL_accept: %d\n", err);
CHK_SSL(err);
/* Get the cipher - opt */
printf ("SSL connection using %s\n", SSL_get_cipher (ssl));
/* Get client's certificate (note: beware of dynamic allocation) - opt */
#if 0
client_cert = SSL_get_peer_certificate (ssl);
if (client_cert != NULL) {
printf ("Client certificate:\n");
str = X509_NAME_oneline (X509_get_subject_name (client_cert), 0, 0);
CHK_NULL(str);
printf ("\t subject: %s\n", str);
Free (str);
str = X509_NAME_oneline (X509_get_issuer_name (client_cert), 0, 0);
CHK_NULL(str);
printf ("\t issuer: %s\n", str);
Free (str);
/* We could do all sorts of certificate verification stuff here before
deallocating the certificate. */
X509_free (client_cert);
} else
printf ("Client does not have certificate.\n");
#endif
/* DATA EXCHANGE - Receive message and send reply. */
err = SSL_read (ssl, buf, sizeof(buf) - 1);
printf("SSL_read\n");
CHK_SSL(err);
printf("CHK_SSL(err)\n");
buf[err] = '\0';
printf("buf\n");
printf ("Got %d chars:'%s'\n", err, buf);
err = SSL_write (ssl, "I hear you.", strlen("I hear you.")); CHK_SSL(err);
/* Clean up. */
closesocket (sd);
SSL_free (ssl);
SSL_CTX_free (ctx);
}
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