general-utilities.h

   1 /*
   2  * This file is part of the nqptp distribution (https://github.com/mikebrady/nqptp).
   3  * Copyright (c) 2021-2022 Mike Brady.
   4  *
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, version 2.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  * Commercial licensing is also available.
  18  */
  19
  20 #ifndef GENERAL_UTILITIES_H
  21 #define GENERAL_UTILITIES_H
  22
  23 // functions that are pretty generic
  24 // specialised stuff should go in the nqptp-utilities
  25
  26 #include <inttypes.h>
  27 #include <sys/socket.h>
  28 #include <time.h>
  29
  30 // struct sockaddr_in6 is bigger than struct sockaddr. derp
  31 #ifdef AF_INET6
  32 #define SOCKADDR struct sockaddr_storage
  33 #define SAFAMILY ss_family
  34 #else
  35 #define SOCKADDR struct sockaddr
  36 #define SAFAMILY sa_family
  37 #endif
  38
  39 void hcton64(uint64_t num, uint8_t *p);
  40
  41 // these are designed to avoid aliasing check errors
  42 uint64_t nctoh64(const uint8_t *p);
  43 uint32_t nctohl(const uint8_t *p);
  44 uint16_t nctohs(const uint8_t *p);
  45 uint64_t timespec_to_ns(struct timespec *tn);
  46 uint64_t get_time_now();
  47
  48 uint64_t ntoh64(const uint64_t n);
  49
  50 #endif