On Tue, 26 Aug 2014, Jon Torrey wrote:

> Recently, I have written an application which uses the same code but does
> not behave normally. Curl fails to resolve the hostname.

On which "unix" and which curl version?

> However, while debugging, I see curl calls gethostname() and gethostbyname()
> functions as well as gethostbyaddr()

No, gethostbyaddr is not used by libcurl. getaddrinfo() is though, if
configure detects such a function.

> What is very interesting, if I try to do a gethostbyname("google.com"), I
> get an IP just fine. If I do a gethostbyname() of the URL stated below, I
> get jibberish output.

You mean in a stand-alone program using these functions or only when used with
curl?

> NOTE: my OS does not have ares.h

C-ares is portable to basically all platforms that can build and run curl so
you _could_ probably use c-ares too if you really wanted to.

> Below is the output of curl. I starred out some content of the URL for
> security and privacy reasons but for clarification, they are normal ASCII
> a-z characters.
>
> I/O: * Curl_ipv4_resolve_r failed for dev1.***dev.com

Ok, an old-style gethostbyname_r call. Did configure detect the correct *_r
version for you?

-- 
  / daniel.haxx.se
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