patches/glibc/2.9/170-2.10-dns-no-gethostbyname4.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Tue Jul 31 22:27:29 2012 +0200 (2012-07-31)
changeset 3018 7776e8369284
parent 1201 c9967a6e3b25
permissions -rw-r--r--
complibs/cloog: create missing m4 dir

Because we now patch configure.in and configure, the Makefile quicks
in a re-build rule as the source files are now more recent than the
bundled generated files, and that fails because the m4 directory
is missing, although on some systems where aclocal is not installed,
the re-build rule does nothing (except a warning).

Always create tht directory.

Reported-by: Per Arnold Blaasmo <per-arnold.blaasmo@atmel.com>
[Also thanks to Thomas De Schampheleire <patrickdepinguin@gmail.com>
for some digging works on this issue]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
     1 Original patch from: gentoo/src/patchsets/glibc/2.9/0080_all_glibc-2.10-dns-no-gethostbyname4.patch
     2 
     3 -= BEGIN original header =-
     4 http://sourceware.org/bugzilla/show_bug.cgi?id=7060
     5 http://bugs.gentoo.org/250468
     6 
     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.
    14 
    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
    18 to do that.
    19 
    20 Real fix should be using separate ports for the A and AAAA queries.
    21 
    22 -= END original header =-
    23 
    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
    27 @@ -102,7 +102,7 @@
    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;
    33    }
    34  }
    35