/* * Copyright (C) 2018 Konsulko Group * Author: Matt Ranostay * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ #include #include #include "afm-nfc-common.h" char *to_hex_string(unsigned char *data, size_t size) { char *buffer = malloc((2 * size) + 1); char *tmp = buffer; int i; if (buffer == NULL) return buffer; for (i = 0; i < size; i++) { tmp += sprintf(tmp, "%.2x", data[i]); } return buffer; }