From 3c89fd52679c8ccebceb30294a4bd815b51ede19 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Mon, 5 Dec 2016 11:22:26 +0100 Subject: Import Drive SDK --- drive-sdk/src/anki_util.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 drive-sdk/src/anki_util.c (limited to 'drive-sdk/src/anki_util.c') diff --git a/drive-sdk/src/anki_util.c b/drive-sdk/src/anki_util.c new file mode 100644 index 0000000..24cb1dd --- /dev/null +++ b/drive-sdk/src/anki_util.c @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2014 Anki, Inc. + * + * 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 +#include +#include +#include + +void bytes_to_hex(const void *value, size_t len, char **output) { + const unsigned char *bytes = (const unsigned char *)value; + size_t bufferLen = len * 3 * sizeof(char); + char str[bufferLen]; + memset(str, 0, bufferLen); + + const char *hex = "0123456789ABCDEF"; + char *s = str; + + for (size_t i = 0; i < len-1; ++i ) { + *s++ = hex[(*bytes>>4)&0xF]; + *s++ = hex[(*bytes++)&0xF]; + *s++ = ' '; + } + *s++ = hex[(*bytes>>4)&0xF]; + *s++ = hex[(*bytes++)&0xF]; + *s++ = 0; + + if (output != NULL) + memmove(*output, str, bufferLen); +} + +void hexdump(const char *prefix, const size_t column_len, const void *value, size_t len) { + assert(prefix != NULL); + assert(column_len > 0); + int row_count = (len / column_len) + 1; + int i; + + size_t slen = column_len*3; + char* s = malloc(slen * sizeof(char)); + for (i = 0; i < row_count; ++i) { + memset(s, 0, slen); + bytes_to_hex(value, len, (char **)&s); + printf("%s %s\n", prefix, s); + } + free(s); +} + + -- cgit v1.2.3