getaddrinfo : Non-recoverable failure in name resolution

[Marco Atzeri <marco dot atzeri at gmail dot com>]

Hi,
the attached two test programs should perform exactly the same call
to getaddrinfo for 127.0.0.1

however on 32 bit
CYGWIN_NT-6.1-WOW64 1.7.30(0.272/5/3) 2014-05-23 10:36 i686 Cygwin

 32 $ ./getaddrinfo_test-1_32
127.0.0.1 ai_addr
02 00 00 00 7f 00 00 01 00 00 00 00 00 00 00 00

 32 $ ./getaddrinfo_test-2_32
127.0.0.1 ai_addr
02 00 00 00 7f 00 00 01 00 00 00 00 00 00 00 00

while on 64 bit
CYGWIN_NT-6.1 1.7.30(0.272/5/3) 2014-05-23 10:36 x86_64 Cygwin

64 $ ./getaddrinfo_test-1_64
127.0.0.1 ai_addr
02 00 00 00 7f 00 00 01 00 00 00 00 00 00 00 00

64 $ ./getaddrinfo_test-2_64
getaddrinfo: Non-recoverable failure in name resolution


Am I missing something ?
The second way is currently used on postgresql in several places,
but it seems to fail only for "127.0.0.1"

Regards
Marco

Attachment: getaddrinfo_test-1.c
Description: Text document

Attachment: getaddrinfo_test-2.c
Description: Text document

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