1 files changed, 110 insertions, 0 deletions
diff --git a/openssl/demos/ssl/cli.cpp b/openssl/demos/ssl/cli.cpp
new file mode 100644
index 000000000..49cba5da0
--- /dev/null
+++ b/openssl/demos/ssl/cli.cpp
@@ -0,0 +1,110 @@
+/* cli.cpp  -  Minimal ssleay client for Unix
+   30.9.1996, Sampo Kellomaki <sampo@iki.fi> */
+
+/* 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 <wades@mail.cybg.com> */
+
+#include <stdio.h>
+#include <memory.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+
+#include <openssl/crypto.h>
+#include <openssl/x509.h>
+#include <openssl/pem.h>
+#include <openssl/ssl.h>
+#include <openssl/err.h>
+
+
+#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);
+
+  CHK_SSL(err);
+  
+  /* ----------------------------------------------- */
+  /* Create a socket and connect to server using normal socket calls. */
+  
+  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);    
+  SSL_set_fd (ssl, sd);
+  err = SSL_connect (ssl);                     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);
+  OPENSSL_free (str);
+
+  str = X509_NAME_oneline (X509_get_issuer_name  (server_cert),0,0);
+  CHK_NULL(str);
+  printf ("\t issuer: %s\n", str);
+  OPENSSL_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. */
+
+  close (sd);
+  SSL_free (ssl);
+  SSL_CTX_free (ctx);
+}
+/* EOF - cli.cpp */