glibc/nscd/gai.c
Joseph Myers bef8fd6013 Fix qsort_r namespace (bug 17571).
qsort_r is defined in the same file as qsort, but is not an ISO C
function, so should be a weak alias for __qsort_r.  The uses in
getaddrinfo should also call __qsort_r, since getaddrinfo is a POSIX
function and qsort_r isn't.  This patch implements this.  Because nscd
uses the getaddrinfo sources outside libc, as do the tst-rfc3484
tests, a #define of __qsort_r to qsort_r is added there alongside the
similar defines for other libc-internal symbols used in getaddrinfo.

Tested for x86_64 (testsuite, and that disassembly of installed shared
libraries is unchanged by the patch).

	[BZ #17571]
	* stdlib/msort.c (qsort_r): Rename to __qsort_r and define as weak
	alias of __qsort_r.
	(qsort): Call __qsort_r instead of qsort_r.
	* include/stdlib.h (qsort_r): Do not call libc_hidden_proto.
	(__qsort_r): Declare.  Call libc_hidden_proto.
	* sysdeps/posix/getaddrinfo.c (getaddrinfo): Call __qsort_r
	instead of qsort_r.
	* nscd/gai.c (__qsort_r): Define to qsort_r.
	* posix/tst-rfc3484.c (__qsort_r): Likewise.
	* posix/tst-rfc3484-2.c (__qsort_r): Likewise.
	* posix/tst-rfc3484-3.c (__qsort_r): Likewise.
2014-11-12 22:33:41 +00:00

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1.6 KiB
C

/* Copyright (C) 2004-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 2004.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
#include <alloca.h>
/* This file uses the getaddrinfo code but it compiles it without NSCD
support. We just need a few symbol renames. */
#define __inet_aton inet_aton
#define __ioctl ioctl
#define __getsockname getsockname
#define __socket socket
#define __recvmsg recvmsg
#define __bind bind
#define __sendto sendto
#define __strchrnul strchrnul
#define __getline getline
#define __qsort_r qsort_r
/* nscd uses 1MB or 2MB thread stacks. */
#define __libc_use_alloca(size) (size <= __MAX_ALLOCA_CUTOFF)
/* We are nscd, so we don't want to be talking to ourselves. */
#undef USE_NSCD
#include <getaddrinfo.c>
/* Support code. */
#include <check_pf.c>
#include <check_native.c>
#ifdef HAVE_LIBIDN
# include <libidn/idn-stub.c>
#endif
/* Some variables normally defined in libc. */
service_user *__nss_hosts_database;