just get the length of the encoded authenticator instead of trying to
grow a buffer git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@11336 ec53bebd-3082-4978-b11e-865c3cabbd6b
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		@@ -92,7 +92,7 @@ krb5_build_authenticator (krb5_context context,
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    auth_context->authenticator->cusec = auth->cusec;
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					    auth_context->authenticator->cusec = auth->cusec;
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  }
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					  }
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  buf_size = 1024;
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					  buf_size = length_Authenticator(auth);
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  buf = malloc (buf_size);
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					  buf = malloc (buf_size);
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  if (buf == NULL) {
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					  if (buf == NULL) {
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      krb5_set_error_string(context, "malloc: out of memory");
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					      krb5_set_error_string(context, "malloc: out of memory");
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@@ -100,28 +100,14 @@ krb5_build_authenticator (krb5_context context,
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      goto fail;
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					      goto fail;
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  }
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					  }
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  do {
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					  ret = krb5_encode_Authenticator (context,
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      ret = krb5_encode_Authenticator (context,
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									   buf + buf_size - 1,
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				       buf + buf_size - 1,
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									   buf_size,
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				       buf_size,
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									   auth, &len);
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				       auth, &len);
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					  if (ret) {
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      if (ret) {
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					      krb5_set_error_string(context, "internal error in ASN.1 encoder");
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	  if (ret == ASN1_OVERFLOW) {
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					      goto fail;
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	      u_char *tmp;
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					  }
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	      buf_size *= 2;
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	      tmp = realloc (buf, buf_size);
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	      if (tmp == NULL) {
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		  krb5_set_error_string(context, "malloc: out of memory");
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		  ret = ENOMEM;
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		  goto fail;
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	      }
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	      buf = tmp;
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	  } else {
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	      goto fail;
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	  }
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      }
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  } while(ret == ASN1_OVERFLOW);
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  ret = krb5_crypto_init(context, &cred->session, enctype, &crypto);
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					  ret = krb5_crypto_init(context, &cred->session, enctype, &crypto);
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  if (ret)
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					  if (ret)
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