A C library for asynchronous DNS requests (grpc依赖)
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

64 lines
2.7 KiB

c-ares
======
This package is based on ares 1.1.1 (written by Greg Hudson). I decided to
fork and release a separate project since the ares author didn't want the
improvements that were vital for our use of it.
This package is dubbed 'c-ares' since I (Daniel Stenberg) wanted this for use
within the curl project (hence the letter C) and it makes a nice pun. Also,
c-ares is not API compatible with ares: a new name makes that more obvious to
the public.
The full source code is available in the 'c-ares' release archives, and in the
'ares' subdir of the curl CVS source repository.
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: http://cool.haxx.se/mailman/listinfo/c-ares
c-ares is of course distributed under the same MIT-style license as the
original ares.
You'll find all c-ares details and news here:
16 years ago
http://c-ares.haxx.se/
NOTES FOR C-ARES HACKERS
The following notes apply to c-ares version 1.6.1 and later.
* 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 CVS 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 of compiling 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_ responsability 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 dependant 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
16 years ago
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 */