adns - Advanced, easy to use, asynchronous-capable DNS client library

Property Value
Distribution Fedora 26
Repository Fedora x86_64
Package name adns
Package version 1.5.1
Package release 1.fc26
Package architecture i686
Package type rpm
Installed size 137.19 KB
Download size 73.75 KB
Official Mirror
adns is a resolver library for C (and C++) programs. In contrast with
the existing interfaces, gethostbyname et al and libresolv, it has the
following features:
- It is reasonably easy to use for simple programs which just want to
translate names to addresses, look up MX records, etc.
- It can be used in an asynchronous, non-blocking, manner. Many
queries can be handled simultaneously.
- Responses are decoded automatically into a natural representation
for a C program - there is no need to deal with DNS packet formats.
- Sanity checking (eg, name syntax checking, reverse/forward
correspondence, CNAME pointing to CNAME) is performed automatically.
- Time-to-live, CNAME and other similar information is returned in an
easy-to-use form, without getting in the way.
- There is no global state in the library; resolver state is an opaque
data structure which the client creates explicitly. A program can have
several instances of the resolver.
- Errors are reported to the application in a way that distinguishes
the various causes of failure properly.
- Understands conventional resolv.conf, but this can overridden by
environment variables.
- Flexibility. For example, the application can tell adns to: ignore
environment variables (for setuid programs), disable sanity checks eg
to return arbitrary data, override or ignore resolv.conf in favour of
supplied configuration, etc.
- Believed to be correct ! For example, will correctly back off to TCP
in case of long replies or queries, or to other nameservers if several
are available. It has sensible handling of bad responses etc.


Package Version Architecture Repository
adns-1.5.1-1.fc26.x86_64.rpm 1.5.1 x86_64 Fedora
adns-1.5.1-1.fc26.i686.rpm 1.5.1 i686 Fedora
adns - - -


Name Value
/sbin/ldconfig - -
rtld(GNU_HASH) -


Name Value
adns = 1.5.1-1.fc26
adns(x86-32) = 1.5.1-1.fc26 -


Type URL
Binary Package adns-1.5.1-1.fc26.i686.rpm
Source Package adns-1.5.1-1.fc26.src.rpm

Install Howto

Install the adns rpm package:

# dnf install adns




2017-02-16 - Tomas Hozza <> - 1.5.1-1
- New upstream version 1.5.1 (#1369297)
2017-02-10 - Fedora Release Engineering <> - 1.4-20
- Rebuilt for
2016-02-03 - Fedora Release Engineering <> - 1.4-19
- Rebuilt for
2015-06-16 - Fedora Release Engineering <> - 1.4-18
- Rebuilt for
2014-08-15 - Fedora Release Engineering <> - 1.4-17
- Rebuilt for
2014-06-07 - Fedora Release Engineering <> - 1.4-16
- Rebuilt for
2013-08-03 - Fedora Release Engineering <> - 1.4-15
- Rebuilt for
2013-02-13 - Fedora Release Engineering <> - 1.4-14
- Rebuilt for
2012-07-18 - Fedora Release Engineering <> - 1.4-13
- Rebuilt for
2012-05-22 - Adam Tkac <atkac redhat com> - 1.4-12
- adnsresfilter: fix segfault when --brackets option is used (#761513)

See Also

Package Description
adns-devel-1.5.1-1.fc26.i686.rpm Asynchronous-capable DNS client library - development files
adns-devel-1.5.1-1.fc26.x86_64.rpm Asynchronous-capable DNS client library - development files
adns-progs-1.5.1-1.fc26.x86_64.rpm Asynchronous-capable DNS client library - utility programs
adobe-source-code-pro-fonts- A set of mono-spaced OpenType fonts designed for coding environments
adobe-source-han-sans-cn-fonts-1.004-3.fc26.noarch.rpm Adobe OpenType Pan-CJK font family for Simplified Chinese
adobe-source-han-sans-tw-fonts-1.004-4.fc26.noarch.rpm Adobe OpenType Pan-CJK font family for Traditional Chinese
adobe-source-han-serif-cn-fonts-1.001-1.fc26.noarch.rpm Adobe OpenType Pan-CJK font family for Simplified Chinese
adobe-source-han-serif-tw-fonts-1.001-1.fc26.noarch.rpm Adobe OpenType Pan-CJK font family for Traditional Chinese
adobe-source-libraries-1.0.43-36.fc26.i686.rpm General purpose C++ libraries
adobe-source-libraries-1.0.43-36.fc26.x86_64.rpm General purpose C++ libraries
adobe-source-libraries-devel-1.0.43-36.fc26.i686.rpm Development files for adobe-source-libraries
adobe-source-libraries-devel-1.0.43-36.fc26.x86_64.rpm Development files for adobe-source-libraries
adobe-source-libraries-doc-1.0.43-36.fc26.x86_64.rpm Documentation
adobe-source-sans-pro-fonts-1.050-7.fc26.noarch.rpm A set of OpenType fonts designed for user interfaces
adobe-source-serif-pro-fonts-2.000-2.fc26.noarch.rpm A set of OpenType fonts designed to complement Source Sans Pro