1 Original patch from: gentoo/src/patchsets/glibc/2.9/0080_all_glibc-2.10-dns-no-gethostbyname4.patch
3 -= BEGIN original header =-
4 http://sourceware.org/bugzilla/show_bug.cgi?id=7060
5 http://bugs.gentoo.org/250468
7 The gethostbyname4() lookup method is problematic since it fires out both
8 the A and AAAA DNS queries in parallel and over the same socket. This
9 should work in theory, but it turns out that many cheap DSL modems and
10 similar devices have buggy DNS servers - if the AAAA query arrives too
11 quickly after the A query, the server will generate only a single reply
12 with the A query id but returning an error for the AAAA query; we get
13 stuck waiting for the second reply.
15 For gethostbyname4() users affected, disabling IPv6 in the system might
16 work around the issue, unfortunately it only helps with applications
17 using AI_ADDRCONFIG (e.g. Firefox); some (notably e.g. Pidgin) neglect
20 Real fix should be using separate ports for the A and AAAA queries.
22 -= END original header =-
24 diff -durN glibc-2_9.orig/resolv/Versions glibc-2_9/resolv/Versions
25 --- glibc-2_9.orig/resolv/Versions 2008-08-01 19:15:34.000000000 +0200
26 +++ glibc-2_9/resolv/Versions 2009-02-02 22:00:46.000000000 +0100
28 _nss_dns_gethostbyname_r; _nss_dns_getnetbyaddr_r;
29 _nss_dns_getnetbyname_r; _nss_dns_getcanonname_r;
30 _nss_dns_gethostbyaddr2_r;
31 - _nss_dns_gethostbyname4_r;
32 +# _nss_dns_gethostbyname4_r;