#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;
+}
+
+static int inflateRecord(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 = inflateInit(&zstrm)) != Z_OK)
+ return -1;
+ *olen = (buffer[3] << 8 & buffer[4]);
+ *out = malloc(*olen);
+ if (!out) {
+ inflateEnd(&zstrm);
+ return -1;
+ }
+ zstrm.next_in = buffer + 6;
+ zstrm.avail_in = len - 6;
+ zstrm.next_out = *out;
+ zstrm.avail_out = *olen;
+ while ((r = inflate(&zstrm, Z_FINISH)) != Z_STREAM_END &&
+ zstrm.avail_out > 0);
+ if ((r = inflate(&zstrm, Z_FINISH)) != Z_STREAM_END) {
+ inflateEnd(&zstrm);
+ free(*out);
+ return -1;
+ }
+ inflateEnd(&zstrm);
+ return 0;
}
int main(int argc, char **argv)
struct sockaddr_in saddr;
int c;
int r;
- char buffer[256];
+ char buffer[1024];
+ char *out;
+ size_t olen;
gnutls_session_t session;
gnutls_global_init();
session_new(&session);
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);
gnutls_strerror(r));
else
fprintf(stderr, "handshake ok\n");
- buffer[0] = 0x40;
- gnutls_record_send(session, buffer, 1);
+ r = read(0, buffer, sizeof(buffer));
+ //deflateRecord(buffer, r, &out, &olen);
+ gnutls_record_send(session, buffer, r);
+ //free(out);
while ((r = gnutls_record_recv(session, buffer, sizeof(buffer))) > 0)
write(1, buffer, r);
close(c);