C-ares
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Contents
Introduction to C-ares
c-ares is a C library that performs DNS requests and name resolves asynchronously. c-ares is a fork of the library named 'ares', written by Greg Hudson at MIT.
Project Homepage: http://daniel.haxx.se/projects/c-ares/
Differences from original ares
* IPv6 support * Many bug fixes * Extended portability (Mac OS X, RISC OS, Windows, DOS and more) * 64bit cleaned sources * New functions (ares_cancel(), ares_expand_string(), ares_version() and more)
Non-Multilib
Configure and compile the package:
./configure --prefix=/usr && make
Install the package:
make install
Multilib
32Bit
Configure and compile the package:
CC="gcc ${BUILD32}" ./configure --prefix=/usr && make
Install the package:
make install && mv -v /usr/include/ares_build{,-32}.h
N32
Configure and compile the package:
CC="gcc ${BUILDN32}" ./configure --prefix=/usr --libdir=/usr/lib32 && make
Install the package:
make install && mv -v /usr/include/ares_build{,-n32}.h
64Bit
Configure and compile the package:
CC="gcc ${BUILD64}" ./configure --prefix=/usr --libdir=/usr/lib64 && make
Install the package:
make install && mv -v /usr/include/ares_build{,-64}.h
Creating a Stub Header (Multilib Only)
Creating a Generic Stub Header
cat > /usr/include/ares_build.h << "EOF" /* ares_build.h - Stub Header */ #ifndef __STUB__ARES_BUILD_H__ #define __STUB__ARES_BUILD_H__ #if defined(__x86_64__) || \ defined(__sparc64__) || \ defined(__arch64__) || \ defined(__powerpc64__) || \ defined (__s390x__) # include "ares_build-64.h" #else # include "ares_build-32.h" #endif #endif /* __STUB__ARES_BUILD_H__ */ EOF
Creating a Stub Header For Mips
cat > /usr/include/ares_build.h << "EOF" /* ares_build.h - Stub Header */ #ifndef __STUB__ARES_BUILD_H__ #define __STUB__ARES_BUILD_H__ #include <sgidefs.h> #if (_MIPS_SIM == _ABIO32) # include "ares_build-32.h" #elif (_MIPS_SIM == _ABIN32) # include "ares_build-n32.h" #elif (_MIPS_SIM == _ABI64) # include "ares_build-64.h" #endif #endif /* __STUB__ARES_BUILD_H__ */ EOF