#### Beyond Linux® From Scratch (systemd Edition) - Version r13.0-491

### Chapter 17. Networking Libraries

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# c-ares-1.34.6

## Introduction to c-ares

c-ares is a C library for asynchronous DNS requests.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

### Package Information

- Download (HTTP): https://github.com/c-ares/c-ares/releases/download/v1.34.6/c-ares-1.34.6.tar.gz

- Download MD5 sum: 85fda96ad3859edb262f68284d11b971

- Download size: 996 KB

- Estimated disk space required: 11 MB

- Estimated build time: 0.1 SBU

### c-ares Dependencies

#### Required

CMake-4.3.2

## Installation of c-ares

Install c-ares by running the following commands:

    mkdir build &&
    cd    build &&

    cmake  -D CMAKE_INSTALL_PREFIX=/usr .. &&
    make

This package does not include a test suite.

Now, as the `root` user:

    make install

## Contents

Installed Programs: adig and ahost
Installed Libraries: libcares.so
Installed Directories: None

### Short Descriptions

adig | queries information from DNS servers
ahost | prints the A or AAAA record associated with a hostname or IP address
`libcares.so` | is a C library for asynchronous DNS requests

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