/contrib/bind9/bin/named/lwaddr.c

https://bitbucket.org/freebsd/freebsd-head/ · C · 94 lines · 55 code · 15 blank · 24 comment · 16 complexity · e422a69962abf9bf541ea98e8e9b49cf MD5 · raw file

  1. /*
  2. * Copyright (C) 2004, 2005, 2007, 2008 Internet Systems Consortium, Inc. ("ISC")
  3. * Copyright (C) 2000, 2001 Internet Software Consortium.
  4. *
  5. * Permission to use, copy, modify, and/or distribute this software for any
  6. * purpose with or without fee is hereby granted, provided that the above
  7. * copyright notice and this permission notice appear in all copies.
  8. *
  9. * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  10. * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  11. * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  12. * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  13. * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  14. * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  15. * PERFORMANCE OF THIS SOFTWARE.
  16. */
  17. /* $Id: lwaddr.c,v 1.10 2008/01/11 23:46:56 tbox Exp $ */
  18. /*! \file */
  19. #include <config.h>
  20. #include <string.h>
  21. #include <isc/result.h>
  22. #include <isc/netaddr.h>
  23. #include <isc/sockaddr.h>
  24. #include <lwres/lwres.h>
  25. #include <named/lwaddr.h>
  26. /*%
  27. * Convert addresses from lwres to isc format.
  28. */
  29. isc_result_t
  30. lwaddr_netaddr_fromlwresaddr(isc_netaddr_t *na, lwres_addr_t *la) {
  31. if (la->family != LWRES_ADDRTYPE_V4 && la->family != LWRES_ADDRTYPE_V6)
  32. return (ISC_R_FAMILYNOSUPPORT);
  33. if (la->family == LWRES_ADDRTYPE_V4) {
  34. struct in_addr ina;
  35. memcpy(&ina.s_addr, la->address, 4);
  36. isc_netaddr_fromin(na, &ina);
  37. } else {
  38. struct in6_addr ina6;
  39. memcpy(&ina6.s6_addr, la->address, 16);
  40. isc_netaddr_fromin6(na, &ina6);
  41. }
  42. return (ISC_R_SUCCESS);
  43. }
  44. isc_result_t
  45. lwaddr_sockaddr_fromlwresaddr(isc_sockaddr_t *sa, lwres_addr_t *la,
  46. in_port_t port)
  47. {
  48. isc_netaddr_t na;
  49. isc_result_t result;
  50. result = lwaddr_netaddr_fromlwresaddr(&na, la);
  51. if (result != ISC_R_SUCCESS)
  52. return (result);
  53. isc_sockaddr_fromnetaddr(sa, &na, port);
  54. return (ISC_R_SUCCESS);
  55. }
  56. /*%
  57. * Convert addresses from isc to lwres format.
  58. */
  59. isc_result_t
  60. lwaddr_lwresaddr_fromnetaddr(lwres_addr_t *la, isc_netaddr_t *na) {
  61. if (na->family != AF_INET && na->family != AF_INET6)
  62. return (ISC_R_FAMILYNOSUPPORT);
  63. if (na->family == AF_INET) {
  64. la->family = LWRES_ADDRTYPE_V4;
  65. la->length = 4;
  66. memcpy(la->address, &na->type.in, 4);
  67. } else {
  68. la->family = LWRES_ADDRTYPE_V6;
  69. la->length = 16;
  70. memcpy(la->address, &na->type.in6, 16);
  71. }
  72. return (ISC_R_SUCCESS);
  73. }
  74. isc_result_t
  75. lwaddr_lwresaddr_fromsockaddr(lwres_addr_t *la, isc_sockaddr_t *sa) {
  76. isc_netaddr_t na;
  77. isc_netaddr_fromsockaddr(&na, sa);
  78. return (lwaddr_lwresaddr_fromnetaddr(la, &na));
  79. }