fakepcapnav.c 2.8 KB

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  1. /* $Id: fakepcapnav.c 767 2004-10-06 12:48:49Z aturner $ */
  2. /*
  3. * Copyright (c) 2001-2004 Aaron Turner.
  4. * All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without
  7. * modification, are permitted provided that the following conditions
  8. * are met:
  9. *
  10. * 1. Redistributions of source code must retain the above copyright
  11. * notice, this list of conditions and the following disclaimer.
  12. * 2. Redistributions in binary form must reproduce the above copyright
  13. * notice, this list of conditions and the following disclaimer in the
  14. * documentation and/or other materials provided with the distribution.
  15. * 3. Neither the names of the copyright owners nor the names of its
  16. * contributors may be used to endorse or promote products derived from
  17. * this software without specific prior written permission.
  18. *
  19. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  20. * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  21. * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  22. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  23. * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  25. * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26. * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  27. * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  28. * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  29. * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30. */
  31. /* This file impliments a fake, non-functioning version of the libpcapnav
  32. * API based on libpcap. It's solely here for people who don't have
  33. * libpcapnav installed on their system, and to keep the code maintainable.
  34. */
  35. #include "config.h"
  36. #include "fakepcapnav.h"
  37. #include "err.h"
  38. #include <stdlib.h>
  39. #ifndef HAVE_PCAPNAV
  40. /* pcapnav_init does nothing! */
  41. void
  42. pcapnav_init(void)
  43. {
  44. return;
  45. }
  46. /* pcapnav_open_offline opens a pcap file,
  47. * and creates the struct for our use
  48. */
  49. pcapnav_t *
  50. pcapnav_open_offline(const char *filename)
  51. {
  52. pcapnav_t *pcapnav;
  53. char errbuf[PCAP_ERRBUF_SIZE];
  54. pcapnav = (pcapnav_t *) malloc(sizeof(pcapnav_t));
  55. if (pcapnav == NULL) {
  56. errx(1, "malloc() error: unable to malloc pcapnav_t");
  57. }
  58. pcapnav->pcap = pcap_open_offline(filename, errbuf);
  59. if (pcapnav->pcap == NULL) {
  60. errx(1, "Error opening pcap file %s: %s", filename, errbuf);
  61. }
  62. return (pcapnav);
  63. }
  64. /* closes our pcap file and free's the pcapnav */
  65. void
  66. pcapnav_close(pcapnav_t * pcapnav)
  67. {
  68. pcap_close(pcapnav->pcap);
  69. free(pcapnav);
  70. }
  71. /* returns the pcap_t data struct */
  72. pcap_t *
  73. pcapnav_pcap(pcapnav_t * pcapnav)
  74. {
  75. return (pcapnav->pcap);
  76. }
  77. #endif