instead of cloning use extract_buf() method

src/libcharon/plugins/tnccs_20/batch/pb_tnc_batch.c

@@ -201,7 +201,7 @@ METHOD(pb_tnc_batch_t, build, void,
 	}
 	enumerator->destroy(enumerator);
 
-	this->encoding = chunk_clone(writer->get_buf(writer));
+	this->encoding = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ietf/ietf_attr_assess_result.c

@@ -106,7 +106,7 @@ METHOD(pa_tnc_attr_t, build, void,
 
 	writer = bio_writer_create(ASSESS_RESULT_SIZE);
 	writer->write_uint32(writer, this->result);
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ietf/ietf_attr_attr_request.c

@@ -125,7 +125,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	}
 	enumerator->destroy(enumerator);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ietf/ietf_attr_default_pwd_enabled.c

@@ -106,7 +106,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer = bio_writer_create(DEFAULT_PWD_ENABLED_SIZE);
 	writer->write_uint32(writer, this->status);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ietf/ietf_attr_fwd_enabled.c

@@ -106,7 +106,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer = bio_writer_create(FORWARDING_ENABLED_SIZE);
 	writer->write_uint32(writer, this->fwd_status);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ietf/ietf_attr_installed_packages.c

@@ -144,7 +144,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	}
 	enumerator->destroy(enumerator);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ietf/ietf_attr_numeric_version.c

@@ -137,7 +137,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer->write_uint16(writer, this->service_pack_major);
 	writer->write_uint16(writer, this->service_pack_minor);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ietf/ietf_attr_op_status.c

@@ -153,7 +153,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer->write_uint16(writer, 0x0000);
 	writer->write_data  (writer, chunk_create(last_use, 20));
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ietf/ietf_attr_pa_tnc_error.c

@@ -206,7 +206,7 @@ METHOD(pa_tnc_attr_t, build, void,
 				break;
 		}
 	}
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ietf/ietf_attr_port_filter.c

@@ -130,7 +130,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	}
 	enumerator->destroy(enumerator);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ietf/ietf_attr_product_info.c

@@ -119,7 +119,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer->write_uint16(writer, this->product_id);
 	writer->write_data  (writer, this->product_name);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ietf/ietf_attr_remediation_instr.c

@@ -154,7 +154,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer->write_uint32(writer, this->parameters_type.type);
 	writer->write_data  (writer, this->parameters);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ietf/ietf_attr_string_version.c

@@ -123,7 +123,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer->write_data8(writer, this->build);
 	writer->write_data8(writer, this->config);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ita/ita_attr_get_settings.c

@@ -128,7 +128,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	}
 	enumerator->destroy(enumerator);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/ita/ita_attr_settings.c

@@ -157,7 +157,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	}
 	enumerator->destroy(enumerator);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libimcv/pa_tnc/pa_tnc_msg.c

@@ -194,7 +194,7 @@ METHOD(pa_tnc_msg_t, build, bool,
 	enumerator->destroy(enumerator);
 
 	free(this->encoding.ptr);
-	this->encoding = chunk_clone(writer->get_buf(writer));
+	this->encoding = writer->extract_buf(writer);
 	writer->destroy(writer);
 
 	return TRUE;

src/libpts/pts/pts.c

@@ -1043,7 +1043,7 @@ METHOD(pts_t, get_quote_info, bool,
 	}
 
 	/* TPM Quote Info */
-	*out_quote_info = chunk_clone(writer->get_buf(writer));
+	*out_quote_info = writer->extract_buf(writer);
 	DBG3(DBG_PTS, "constructed TPM Quote Info: %B", out_quote_info);
 
 	writer->destroy(writer);

src/libpts/tcg/tcg_pts_attr_aik.c

@@ -123,9 +123,9 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer = bio_writer_create(PTS_AIK_SIZE);
 	writer->write_uint8(writer, flags);
 	writer->write_data (writer, aik_blob);
-	this->value = chunk_clone(writer->get_buf(writer));
-	free(aik_blob.ptr);
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
+	free(aik_blob.ptr);
 }
 
 METHOD(pa_tnc_attr_t, process, status_t,

src/libpts/tcg/tcg_pts_attr_dh_nonce_finish.c

@@ -128,7 +128,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer->write_data  (writer, this->initiator_value);
 	writer->write_data  (writer, this->initiator_nonce);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_dh_nonce_params_req.c

@@ -117,7 +117,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer->write_uint8 (writer, this->min_nonce_len);
 	writer->write_uint16(writer, this->dh_groups);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_dh_nonce_params_resp.c

@@ -136,7 +136,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer->write_data  (writer, this->responder_nonce);
 	writer->write_data  (writer, this->responder_value);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_file_meas.c

@@ -154,7 +154,7 @@ METHOD(pa_tnc_attr_t, build, void,
 		writer->write_uint16(writer, 0);
 	}
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_gen_attest_evid.c

@@ -106,7 +106,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer = bio_writer_create(PTS_GEN_ATTEST_EVID_SIZE);
 	writer->write_uint32 (writer, PTS_GEN_ATTEST_EVID_RESERVED);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_get_aik.c

@@ -103,7 +103,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer = bio_writer_create(PTS_GET_AIK_SIZE);
 	writer->write_uint32 (writer, PTS_GET_AIK_RESERVED);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_get_tpm_version_info.c

@@ -106,7 +106,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer = bio_writer_create(PTS_GET_TPM_VER_INFO_SIZE);
 	writer->write_uint32 (writer, PTS_GET_TPM_VER_INFO_RESERVED);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_meas_algo.c

@@ -109,7 +109,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer = bio_writer_create(PTS_MEAS_ALGO_SIZE);
 	writer->write_uint16(writer, PTS_MEAS_ALGO_RESERVED);
 	writer->write_uint16(writer, this->algorithms);
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_proto_caps.c

@@ -110,7 +110,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer->write_uint16(writer, PTS_PROTO_CAPS_RESERVED);
 	writer->write_uint16(writer, this->flags);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_req_file_meas.c

@@ -143,7 +143,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer->write_uint16(writer, this->request_id);
 	writer->write_uint32(writer, this->delimiter);
 	writer->write_data  (writer, pathname);
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_req_file_meta.c

@@ -136,7 +136,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer->write_uint16(writer, PTS_REQ_FILE_META_RESERVED);
 
 	writer->write_data  (writer, pathname);
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_req_func_comp_evid.c

@@ -183,7 +183,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	}
 	enumerator->destroy(enumerator);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_simple_comp_evid.c

@@ -242,7 +242,7 @@ METHOD(pa_tnc_attr_t, build, void,
 
 	writer->write_data(writer, measurement);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_simple_evid_final.c

@@ -194,7 +194,7 @@ METHOD(pa_tnc_attr_t, build, void,
 		writer->write_data (writer, this->evid_sig);
 	}
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_tpm_version_info.c

@@ -110,7 +110,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	writer = bio_writer_create(PTS_TPM_VER_INFO_SIZE);
 	writer->write_data(writer, this->tpm_version_info);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }
 

src/libpts/tcg/tcg_pts_attr_unix_file_meta.c

@@ -166,7 +166,7 @@ METHOD(pa_tnc_attr_t, build, void,
 	}
 	enumerator->destroy(enumerator);
 
-	this->value = chunk_clone(writer->get_buf(writer));
+	this->value = writer->extract_buf(writer);
 	writer->destroy(writer);
 }