kopia lustrzana https://github.com/weetmuts/wmbusmeters
96 wiersze
3.5 KiB
C++
96 wiersze
3.5 KiB
C++
/*
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Copyright (C) 2017-2018 Fredrik Öhrström
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef UTIL_H
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#define UTIL_H
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#include<signal.h>
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#include<stdint.h>
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#include<string>
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#include<functional>
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#include<vector>
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void onExit(std::function<void()> cb);
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typedef unsigned char uchar;
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#define call(A,B) ([&](){A->B();})
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#define calll(A,B,T) ([&](T t){A->B(t);})
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bool hex2bin(const char* src, std::vector<uchar> *target);
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bool hex2bin(std::string &src, std::vector<uchar> *target);
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std::string bin2hex(std::vector<uchar> &target);
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std::string bin2hex(std::vector<uchar>::iterator data, int len);
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void strprintf(std::string &s, const char* fmt, ...);
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void xorit(uchar *srca, uchar *srcb, uchar *dest, int len);
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void enableSyslog();
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void error(const char* fmt, ...);
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void verbose(const char* fmt, ...);
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void debug(const char* fmt, ...);
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void warning(const char* fmt, ...);
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void warningSilenced(bool b);
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void verboseEnabled(bool b);
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void debugEnabled(bool b);
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void logTelegramsEnabled(bool b);
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bool isVerboseEnabled();
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bool isDebugEnabled();
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bool isLogTelegramsEnabled();
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void debugPayload(std::string intro, std::vector<uchar> &payload);
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void logTelegram(std::string intro, std::vector<uchar> &header, std::vector<uchar> &content);
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bool isValidId(std::string& id);
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bool isValidKey(std::string& key);
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void incrementIV(uchar *iv, size_t len);
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bool checkCharacterDeviceExists(const char *tty, bool fail_if_not);
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bool checkIfSimulationFile(const char *file);
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bool checkIfDirExists(const char *dir);
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bool listFiles(const char *dir, std::vector<std::string> *files);
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bool loadFile(const char *file, std::vector<char> *buf);
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std::string eatTo(std::vector<uchar> &v, std::vector<uchar>::iterator &i, int c, size_t max, bool *eof, bool *err);
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void padWithZeroesTo(std::vector<uchar> *content, size_t len, std::vector<uchar> *full_content);
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int parseTime(std::string time);
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uint16_t crc16_EN13757(uchar *data, size_t len);
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// This crc is used by im871a for its serial communication.
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uint16_t crc16_CCITT(uchar *data, uint16_t length);
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bool crc16_CCITT_check(uchar *data, uint16_t length);
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// Eat characters from the vector v, iterating using i, until the end char c is found.
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// If end char == -1, then do not expect any end char, get all until eof.
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// If the end char is not found, return error.
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// If the maximum length is reached without finding the end char, return error.
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std::string eatTo(std::vector<char> &v, std::vector<char>::iterator &i, int c, size_t max, bool *eof, bool *err);
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// Eat whitespace (space and tab, not end of lines).
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void eatWhitespace(std::vector<char> &v, std::vector<char>::iterator &i, bool *eof);
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// First eat whitespace, then start eating until c is found or eof. The found string is trimmed from beginning and ending whitespace.
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std::string eatToSkipWhitespace(std::vector<char> &v, std::vector<char>::iterator &i, int c, size_t max, bool *eof, bool *err);
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// Remove leading and trailing white space
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void trimWhitespace(std::string *s);
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#endif
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