1.21.0
SonarCloud: reduce reported complexity that exists for no reason.
1 file changed
tree: c563b3866b5e718de386072b01287777010e1671
  1. .github/
  2. .reuse/
  3. ci/
  4. cmake/
  5. docs/
  6. include/
  7. LICENSES/
  8. m4/
  9. src/
  10. test/
  11. .cirrus.yml
  12. .clang-format
  13. .gitattributes
  14. .gitignore
  15. .travis.yml
  16. acinclude.m4
  17. appveyor.yml
  18. AUTHORS
  19. buildconf
  20. buildconf.bat
  21. c-ares-config.cmake.in
  22. CHANGES
  23. CHANGES.0
  24. CMakeLists.txt
  25. configure.ac
  26. CONTRIBUTING.md
  27. get_ver.awk
  28. GIT-INFO
  29. git2changes.pl
  30. INSTALL.md
  31. libcares.pc.cmake
  32. libcares.pc.in
  33. LICENSE.md
  34. Makefile.am
  35. Makefile.dj
  36. Makefile.m32
  37. Makefile.msvc
  38. Makefile.netware
  39. Makefile.Watcom
  40. maketgz
  41. msvc_ver.inc
  42. NEWS
  43. README.cares
  44. README.md
  45. README.msvc
  46. RELEASE-NOTES
  47. RELEASE-PROCEDURE.md
  48. SECURITY.md
  49. sonar-project.properties
  50. TODO
README.md

c-ares

Build Status Windows Build Status Coverage Status CII Best Practices Fuzzing Status

This is c-ares, an asynchronous resolver library. It is intended for applications which need to perform DNS queries without blocking, or need to perform multiple DNS queries in parallel. The primary examples of such applications are servers which communicate with multiple clients and programs with graphical user interfaces.

The full source code is available in the ‘c-ares’ release archives, and in a git repository: https://github.com/c-ares/c-ares. See the INSTALL.md file for build information.

If you find bugs, correct flaws, have questions or have comments in general in regard to c-ares (or by all means the original ares too), get in touch with us on the c-ares mailing list: https://lists.haxx.se/listinfo/c-ares

c-ares is distributed under the MIT license.

You'll find all c-ares details and news here: https://c-ares.org/

Notes for c-ares hackers

  • The distributed ares_build.h file is only intended to be used on systems which can not run the also distributed configure script.

  • The distributed ares_build.h file is generated as a copy of ares_build.h.dist when the c-ares source code distribution archive file is originally created.

  • If you check out from git on a non-configure platform, you must run the appropriate buildconf* script to set up ares_build.h and other local files before being able to compile the library.

  • On systems capable of running the configure script, the configure process will overwrite the distributed ares_build.h file with one that is suitable and specific to the library being configured and built, this new file is generated from the ares_build.h.in template file.

  • If you intend to distribute an already compiled c-ares library you MUST also distribute along with it the generated ares_build.h which has been used to compile it. Otherwise the library will be of no use for the users of the library that you have built. It is your responsibility to provide this file. No one at the c-ares project can know how you have built the library.

  • File ares_build.h includes platform and configuration dependent info, and must not be modified by anyone. Configure script generates it for you.

  • We cannot assume anything else but very basic compiler features being present. While c-ares requires an ANSI C compiler to build, some of the earlier ANSI compilers clearly can't deal with some preprocessor operators.

  • Newlines must remain unix-style for older compilers' sake.

  • Comments must be written in the old-style /* unnested C-fashion */

  • Try to keep line lengths below 80 columns.