"Daniel Stenberg" <dan...@haxx.se> wrote:
On Thu, 22 Sep 2011, Gisle Vanem wrote:
But I cannot make sense of the messy #ifdef-ing to select the "correct"
resolver. We have been told for like 10 years that gethostbyname() has been
deprecated. At least on Windows. So someone help me fix this.
It currently depends on ENABLE_IPV6, which in lib/setup.h (line 495) will
define CURLRES_IPV6 then.
Does lwIP support IPv6? Otherwise I guess you can leave ENABLE_IPV6 undefined
and just explicity define CURLRES_IPV6 and undefine CURLRES_IPV4,
It does. Trying that, I see lwIP uses getaddrinfo(), then calls gethostbyname()
internally and then hangs forever waiting for some event:
...
kernel32.dll!WaitForSingleObjectEx+0xa8
kernel32.dll!WaitForSingleObject+0x12
lwip.dll!sys_arch_sem_wait+0xbb
lwip.dll!netconn_gethostbyname+0xb6
lwip.dll!lwip_gethostbyname+0x11
libcurl.dll!Curl_getaddrinfo+0x43
libcurl.dll!Curl_resolv+0xd1
libcurl.dll!Curl_resolv_timeout+0x44
libcurl.dll!resolve_server+0x12d
libcurl.dll!create_conn+0x4ea
libcurl.dll!Curl_connect+0x1d
libcurl.dll!Curl_do_perform+0x5a
libcurl.dll!Curl_perform+0x17
libcurl.dll!curl_easy_perform+0xa0
curl.exe!operate+0x2468
...
Must check further.
--gv
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