Mercurialcrosstool-ng / file revision
summary | shortlog | changelog | graph | tags | branches | files | changeset | file | latest | revisions | annotate | diff | raw | help
patches/glibc/2.9/120-_nss_dns_gethostbyaddr2_r-check-and-adjust-the-buffer-alignment.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Aug 02 18:26:53 2011 +0200 (2011-08-02)
changeset 2592 4908eb2b6f17
parent 1201 c9967a6e3b25
permissions -rw-r--r--
scripts/functions: cvs retrieval first tries the mirror for tarballs

The cvs download helper looks for the local tarballs dir to see if it
can find a pre-downloaded tarball, and if it does not find it, does
the actual fetch to upstream via cvs.

In the process, it does not even try to get a tarball from the local
mirror, which can be useful if the mirror has been pre-populated
manually (or with a previously downloaded tree).

Fake a tarball get with the standard tarball-download helper, but
without specifying any upstream URL, which makes the helper directly
try the LAN mirror.

Of course, if no mirror is specified, no URL wil be available, and
the standard cvs retrieval will kick in.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 Original patch from: gentoo/src/patchsets/glibc/2.9/0050_all_glibc-_nss_dns_gethostbyaddr2_r-check-and-adjust-the-buffer-alignment.patch

     2 

     3 -= BEGIN original header =-

     4 http://sourceware.org/ml/libc-alpha/2009-01/msg00000.html

     5 

     6 From 8ad7030880eaa18dcabf8e284e79026301fd3fa4 Mon Sep 17 00:00:00 2001

     7 From: Ulrich Drepper <drepper@redhat.com>

     8 Date: Thu, 8 Jan 2009 00:02:38 +0000

     9 Subject: [PATCH] (_nss_dns_gethostbyaddr2_r): Check and adjust the buffer alignment.

    10 

    11 -= END original header =-

    12 

    13 diff -durN glibc-2_9.orig/resolv/nss_dns/dns-host.c glibc-2_9/resolv/nss_dns/dns-host.c

    14 --- glibc-2_9.orig/resolv/nss_dns/dns-host.c	2008-11-12 08:52:20.000000000 +0100

    15 +++ glibc-2_9/resolv/nss_dns/dns-host.c	2009-02-02 22:00:36.000000000 +0100

    16 @@ -364,6 +364,19 @@

    17    int n, status;

    18    int olderr = errno;

    19  

    20 + uintptr_t pad = -(uintptr_t) buffer % __alignof__ (struct host_data);

    21 + buffer += pad;

    22 + buflen = buflen > pad ? buflen - pad : 0;

    23 +

    24 + if (__builtin_expect (buflen < sizeof (struct host_data), 0))

    25 +   {

    26 +     *errnop = ERANGE;

    27 +     *h_errnop = NETDB_INTERNAL;

    28 +     return NSS_STATUS_TRYAGAIN;

    29 +   }

    30 +

    31 + host_data = (struct host_data *) buffer;

    32 +

    33    if (__res_maybe_init (&_res, 0) == -1)

    34      return NSS_STATUS_UNAVAIL;

    35
crosstool-ng