un.h 2.1 KB

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  1. //
  2. // Copyright 2026 Aarav Ravindra Kharade
  3. //
  4. // Licensed under the Apache License, Version 2.0 (the "License");
  5. // you may not use this file except in compliance with the License.
  6. // You may obtain a copy of the License at
  7. //
  8. // http://www.apache.org/licenses/LICENSE-2.0
  9. //
  10. // Unless required by applicable law or agreed to in writing, software
  11. // distributed under the License is distributed on an "AS IS" BASIS,
  12. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. // See the License for the specific language governing permissions and
  14. // limitations under the License.
  15. //
  16. /* Copyright (C) 1991-2026 Free Software Foundation, Inc.
  17. This file is part of the GNU C Library.
  18. The GNU C Library is free software; you can redistribute it and/or
  19. modify it under the terms of the GNU Lesser General Public
  20. License as published by the Free Software Foundation; either
  21. version 2.1 of the License, or (at your option) any later version.
  22. The GNU C Library is distributed in the hope that it will be useful,
  23. but WITHOUT ANY WARRANTY; without even the implied warranty of
  24. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  25. Lesser General Public License for more details.
  26. You should have received a copy of the GNU Lesser General Public
  27. License along with the GNU C Library; if not, see
  28. <https://www.gnu.org/licenses/>. */
  29. #ifndef _SYS_UN_H
  30. #define _SYS_UN_H 1
  31. #include <sys/cdefs.h>
  32. /* Get the definition of the macro to define the common sockaddr members. */
  33. #include <bits/sockaddr.h>
  34. __BEGIN_DECLS
  35. /* Structure describing the address of an AF_LOCAL (aka AF_UNIX) socket. */
  36. struct __attribute_struct_may_alias__ sockaddr_un
  37. {
  38. __SOCKADDR_COMMON (sun_);
  39. char sun_path[108]; /* Path name. */
  40. };
  41. #ifdef __USE_MISC
  42. # include <stddef.h>
  43. # include <string.h> /* For prototype of `strlen'. */
  44. /* Evaluate to actual length of the `sockaddr_un' structure. */
  45. # define SUN_LEN(ptr) (offsetof (struct sockaddr_un, sun_path) \
  46. + strlen ((ptr)->sun_path))
  47. #endif
  48. __END_DECLS
  49. #endif /* sys/un.h */