Compila rnetserver e rnetclient.

[cascardo/rnetproxy.git] / rnetclient.c

diff --git a/rnetclient.c b/rnetclient.c
index f01e248..6c8c20b 100644 (file)
--- a/rnetclient.c
+++ b/rnetclient.c
@@ -24,12 +24,60 @@
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <gnutls/gnutls.h>
+#include <zlib.h>
+
+static void * get_creds(char *certfile)
+{
+       static gnutls_certificate_credentials_t cred;
+       gnutls_certificate_allocate_credentials(&cred);
+       gnutls_certificate_set_x509_trust_file(cred, certfile,
+                                       GNUTLS_X509_FMT_PEM);
+       return cred;
+}
 
 static void session_new(gnutls_session_t *session)
 {
        static void *cred;
+       cred = get_creds("cert.pem");
        gnutls_init(session, GNUTLS_CLIENT);
        gnutls_set_default_priority(*session);
+       gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE, cred);
+}
+
+static int deflateRecord(char *buffer, size_t len, char **out, size_t *olen)
+{
+       z_stream zstrm;
+       int r;
+       zstrm.zalloc = Z_NULL;
+       zstrm.zfree = Z_NULL;
+       zstrm.opaque = Z_NULL;
+       if ((r = deflateInit(&zstrm, Z_DEFAULT_COMPRESSION)) != Z_OK)
+               return -1;
+       *out = malloc(len * 2 + 36);
+       if (!out) {
+               deflateEnd(&zstrm);
+               return -1;
+       }
+       zstrm.next_in = buffer;
+       zstrm.avail_in = len;
+       zstrm.next_out = *out + 6;
+       zstrm.avail_out = len * 2 + 30;
+       while ((r = deflate(&zstrm, Z_FINISH)) != Z_STREAM_END &&
+               zstrm.avail_out > 0);
+       if ((r = deflate(&zstrm, Z_FINISH)) != Z_STREAM_END) {
+               deflateEnd(&zstrm);
+               free(*out);
+               return -1;
+       }
+       *olen = zstrm.avail_out + 6;
+       (*out)[0] = 0x1;
+       (*out)[1] = (zstrm.avail_out >> 8);
+       (*out)[2] = (zstrm.avail_out & 0xff);
+       (*out)[3] = (len >> 8);
+       (*out)[4] = (len & 0xff);
+       (*out)[5] = 0x1;
+       deflateEnd(&zstrm);
+       return 0;
 }
 
 int main(int argc, char **argv)
@@ -38,6 +86,8 @@ int main(int argc, char **argv)
        int c;
        int r;
        char buffer[256];
+       char *out;
+       size_t olen;
        gnutls_session_t session;
        gnutls_global_init();
        session_new(&session);
@@ -49,10 +99,10 @@ int main(int argc, char **argv)
        gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) c);
        buffer[0] = 1;
        write(c, buffer, 1);
+       write(c, "00000000000000", 14);
        r = read(c, buffer, 1);
        if (r != 1 && buffer[0] != 'E')
                exit(1);
-       write(c, "00000000000000", 14);
        r = read(c, buffer, 14);
        if (r != 14)
                exit(1);
@@ -62,7 +112,9 @@ int main(int argc, char **argv)
        else
                fprintf(stderr, "handshake ok\n");
        buffer[0] = 0x40;
-       gnutls_record_send(session, buffer, 1);
+       deflateRecord(buffer, 1, &out, &olen);
+       gnutls_record_send(session, out, olen);
+       free(out);
        while ((r = gnutls_record_recv(session, buffer, sizeof(buffer))) > 0)
                write(1, buffer, r);
        close(c);