| Original patch from: gentoo/src/patchsets/glibc/2.9/0080_all_glibc-2.10-dns-no-gethostbyname4.patch |
| |
| -= BEGIN original header =- |
| http://sourceware.org/bugzilla/show_bug.cgi?id=7060 |
| http://bugs.gentoo.org/250468 |
| |
| The gethostbyname4() lookup method is problematic since it fires out both |
| the A and AAAA DNS queries in parallel and over the same socket. This |
| should work in theory, but it turns out that many cheap DSL modems and |
| similar devices have buggy DNS servers - if the AAAA query arrives too |
| quickly after the A query, the server will generate only a single reply |
| with the A query id but returning an error for the AAAA query; we get |
| stuck waiting for the second reply. |
| |
| For gethostbyname4() users affected, disabling IPv6 in the system might |
| work around the issue, unfortunately it only helps with applications |
| using AI_ADDRCONFIG (e.g. Firefox); some (notably e.g. Pidgin) neglect |
| to do that. |
| |
| Real fix should be using separate ports for the A and AAAA queries. |
| |
| -= END original header =- |
| |
| diff -durN glibc-2_9.orig/resolv/Versions glibc-2_9/resolv/Versions |
| --- glibc-2_9.orig/resolv/Versions 2008-08-01 19:15:34.000000000 +0200 |
| +++ glibc-2_9/resolv/Versions 2009-02-02 22:00:46.000000000 +0100 |
| @@ -102,7 +102,7 @@ |
| _nss_dns_gethostbyname_r; _nss_dns_getnetbyaddr_r; |
| _nss_dns_getnetbyname_r; _nss_dns_getcanonname_r; |
| _nss_dns_gethostbyaddr2_r; |
| - _nss_dns_gethostbyname4_r; |
| +# _nss_dns_gethostbyname4_r; |
| } |
| } |
| |