utils.h 2.4 KB

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  1. /*
  2. * utils.h
  3. * ptunnel is licensed under the BSD license:
  4. *
  5. * Copyright (c) 2004-2011, Daniel Stoedle <daniels@cs.uit.no>,
  6. * Yellow Lemon Software. All rights reserved.
  7. *
  8. * Copyright (c) 2017-2019, Toni Uhlig <matzeton@googlemail.com>
  9. *
  10. * Redistribution and use in source and binary forms, with or without
  11. * modification, are permitted provided that the following conditions are met:
  12. *
  13. * - Redistributions of source code must retain the above copyright notice,
  14. * this list of conditions and the following disclaimer.
  15. *
  16. * - Redistributions in binary form must reproduce the above copyright notice,
  17. * this list of conditions and the following disclaimer in the documentation
  18. * and/or other materials provided with the distribution.
  19. *
  20. * - Neither the name of the Yellow Lemon Software nor the names of its
  21. * contributors may be used to endorse or promote products derived from this
  22. * software without specific prior written permission.
  23. *
  24. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27. * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  28. * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30. * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  31. * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  32. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  33. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  34. * POSSIBILITY OF SUCH DAMAGE.
  35. *
  36. * Contacting the author:
  37. * You can get in touch with me, Daniel Stødle (that's the Norwegian letter oe,
  38. * in case your text editor didn't realize), here: <daniels@cs.uit.no>
  39. *
  40. * The official ptunnel website is here:
  41. * <http://www.cs.uit.no/~daniels/PingTunnel/>
  42. *
  43. * Note that the source code is best viewed with tabs set to 4 spaces.
  44. */
  45. #ifndef UTILS_H
  46. #define UTILS_H 1
  47. #include <stdint.h>
  48. #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
  49. void pt_log(int level, const char *fmt, ...);
  50. double time_as_double(void);
  51. int host_to_addr(const char *hostname, uint32_t *result);
  52. #if 0
  53. void print_hexstr(unsigned char *buf, size_t siz);
  54. #endif
  55. int pt_random(void);
  56. #endif