tcpdump.h 2.9 KB

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  1. /* $Id: tcpdump.h 929 2004-11-11 22:32:43Z 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. #ifndef __TCPDUMP_H__
  32. #define __TCPDUMP_H__
  33. /* line buffer stdout, read from stdin */
  34. #define TCPDUMP_ARGS " -n -l -r-"
  35. /* max number of tcpdump options; must be a multiple of 4 */
  36. #define OPTIONS_VEC_SIZE 32
  37. /* how long to wait (in ms) to write to tcpdump */
  38. #define TCPDUMP_POLL_TIMEOUT 500
  39. /* delim to be used for strtok() to process tcpdump args */
  40. #define OPT_DELIM " -"
  41. /* output file of data passed to tcpdump when debug level 5 is enabled */
  42. #define TCPDUMP_DEBUG "tcpdump.debug"
  43. /* taken from libpcap's savefile.c */
  44. #define TCPDUMP_MAGIC 0xa1b2c3d4
  45. #define PATCHED_TCPDUMP_MAGIC 0xa1b2cd34
  46. #define TCPDUMP_DECODE_LEN 65535
  47. struct tcpdump_s {
  48. char *filename;
  49. char *args;
  50. struct pcap_file_header pfh;
  51. int pid;
  52. int infd; /* fd to write to. 1/2 of the socketpair */
  53. int outfd; /* fd to read from. */
  54. /* following vars are for figuring out exactly what we send to
  55. * tcpdump. See TCPDUMP_DEBUG
  56. */
  57. #ifdef DEBUG
  58. int debugfd;
  59. char debugfile[255];
  60. #endif
  61. };
  62. typedef struct tcpdump_s tcpdump_t;
  63. int tcpdump_init(tcpdump_t *tcpdump);
  64. int tcpdump_open(tcpdump_t *tcpdump);
  65. int tcpdump_print(tcpdump_t *tcpdump, struct pcap_pkthdr *pkthdr, const u_char *data);
  66. void tcpdump_close(tcpdump_t *tcpdump);
  67. #endif
  68. /*
  69. Local Variables:
  70. mode:c
  71. indent-tabs-mode:nil
  72. c-basic-offset:4
  73. End:
  74. */