GNU C Library master sources branch master updated. glibc-2.20-378-g8ac5a76

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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=8ac5a76a99e51a91eac9cecbe941fc05ddf11e03

commit 8ac5a76a99e51a91eac9cecbe941fc05ddf11e03
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Wed Dec 17 18:09:11 2014 +0000

    Fix resolver inet_* namespace (bug 17722).
    
    Parts of the resolver brought in by pthreads (at least) use inet_*
    functions that aren't in the 1995/6 edition of POSIX that introduced
    pthreads (or in one case, use __inet_aton which is then defined in the
    same file as non-weak inet_addr).  This patch fixes this by making the
    affected functions into weak alias for __inet_* and using those names
    in the problematic resolver code.
    
    Tested for x86_64 (testsuite, and that disassembly of installed shared
    libraries is unchanged by the patch).
    
    	[BZ #17722]
    	* inet/inet_mkadr.c (inet_makeaddr): Rename to __inet_makeaddr and
    	define as weak alias of __inet_makeaddr.
    	* resolv/inet_addr.c (inet_addr): Rename to __inet_addr and define
    	as weak alias of __inet_addr.
    	* resolv/inet_pton.c (inet_pton): Rename to __inet_pton and define
    	as weak alias of __inet_pton.  Use libc_hidden_weak.
    	* include/arpa/inet.h (__inet_pton): Declare.  Use
    	libc_hidden_proto.
    	(inet_makeaddr): Don't use libc_hidden_proto.
    	(__inet_makeaddr): Declare.  Use libc_hidden_proto.
    	* resolv/res_init.c (__res_vinit): Use __inet_pton instead of
    	inet_pton.  Use __inet_makeaddr instead of inet_makeaddr.
    	* conform/Makefile (test-xfail-POSIX/pthread.h/linknamespace):
    	Remove variable.
    	(test-xfail-POSIX/sched.h/linknamespace): Likewise.
    	(test-xfail-POSIX/time.h/linknamespace): Likewise.

diff --git a/ChangeLog b/ChangeLog
index a7cb40e..2fc8cde 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,23 @@
+2014-12-17  Joseph Myers  <joseph@codesourcery.com>
+
+	[BZ #17722]
+	* inet/inet_mkadr.c (inet_makeaddr): Rename to __inet_makeaddr and
+	define as weak alias of __inet_makeaddr.
+	* resolv/inet_addr.c (inet_addr): Rename to __inet_addr and define
+	as weak alias of __inet_addr.
+	* resolv/inet_pton.c (inet_pton): Rename to __inet_pton and define
+	as weak alias of __inet_pton.  Use libc_hidden_weak.
+	* include/arpa/inet.h (__inet_pton): Declare.  Use
+	libc_hidden_proto.
+	(inet_makeaddr): Don't use libc_hidden_proto.
+	(__inet_makeaddr): Declare.  Use libc_hidden_proto.
+	* resolv/res_init.c (__res_vinit): Use __inet_pton instead of
+	inet_pton.  Use __inet_makeaddr instead of inet_makeaddr.
+	* conform/Makefile (test-xfail-POSIX/pthread.h/linknamespace):
+	Remove variable.
+	(test-xfail-POSIX/sched.h/linknamespace): Likewise.
+	(test-xfail-POSIX/time.h/linknamespace): Likewise.
+
 2014-12-17  Steve Ellcey  <sellcey@imgtec.com>
 
 	* inet/getnetgrent_r.c: Move while loop to be inside if statement.
diff --git a/NEWS b/NEWS
index c46f51a..d4ccd37 100644
--- a/NEWS
+++ b/NEWS
@@ -14,7 +14,8 @@ Version 2.21
   17363, 17370, 17371, 17411, 17460, 17475, 17485, 17501, 17506, 17508,
   17522, 17555, 17570, 17571, 17572, 17573, 17574, 17581, 17582, 17583,
   17584, 17585, 17589, 17594, 17601, 17608, 17616, 17625, 17630, 17633,
-  17634, 17647, 17653, 17657, 17664, 17665, 17668, 17682, 17717, 17719.
+  17634, 17647, 17653, 17657, 17664, 17665, 17668, 17682, 17717, 17719,
+  17722.
 
 * CVE-2104-7817 The wordexp function could ignore the WRDE_NOCMD flag
   under certain input conditions resulting in the execution of a shell for
diff --git a/conform/Makefile b/conform/Makefile
index 45a17fb..5e6ac09 100644
--- a/conform/Makefile
+++ b/conform/Makefile
@@ -371,11 +371,8 @@ test-xfail-POSIX/aio.h/linknamespace = yes
 test-xfail-POSIX/fnmatch.h/linknamespace = yes
 test-xfail-POSIX/glob.h/linknamespace = yes
 test-xfail-POSIX/mqueue.h/linknamespace = yes
-test-xfail-POSIX/pthread.h/linknamespace = yes
 test-xfail-POSIX/regex.h/linknamespace = yes
-test-xfail-POSIX/sched.h/linknamespace = yes
 test-xfail-POSIX/semaphore.h/linknamespace = yes
-test-xfail-POSIX/time.h/linknamespace = yes
 test-xfail-POSIX/unistd.h/linknamespace = yes
 test-xfail-POSIX/wordexp.h/linknamespace = yes
 test-xfail-UNIX98/ctype.h/linknamespace = yes
diff --git a/include/arpa/inet.h b/include/arpa/inet.h
index 63ece70..c3f28f2 100644
--- a/include/arpa/inet.h
+++ b/include/arpa/inet.h
@@ -7,6 +7,9 @@ libc_hidden_proto (__inet_aton)
 libc_hidden_proto (inet_aton)
 libc_hidden_proto (inet_ntop)
 libc_hidden_proto (inet_pton)
-libc_hidden_proto (inet_makeaddr)
+extern __typeof (inet_pton) __inet_pton;
+libc_hidden_proto (__inet_pton)
+extern __typeof (inet_makeaddr) __inet_makeaddr;
+libc_hidden_proto (__inet_makeaddr)
 libc_hidden_proto (inet_netof)
 #endif
diff --git a/inet/inet_mkadr.c b/inet/inet_mkadr.c
index d8d92da..580a9cd 100644
--- a/inet/inet_mkadr.c
+++ b/inet/inet_mkadr.c
@@ -40,7 +40,7 @@ static char sccsid[] = "@(#)inet_makeaddr.c	8.1 (Berkeley) 6/4/93";
  * building addresses stored in the ifnet structure.
  */
 struct in_addr
-inet_makeaddr(net, host)
+__inet_makeaddr(net, host)
 	in_addr_t net, host;
 {
 	struct in_addr in;
@@ -56,4 +56,5 @@ inet_makeaddr(net, host)
 	in.s_addr = htonl(in.s_addr);
 	return in;
 }
-libc_hidden_def (inet_makeaddr)
+libc_hidden_def (__inet_makeaddr)
+weak_alias (__inet_makeaddr, inet_makeaddr)
diff --git a/resolv/inet_addr.c b/resolv/inet_addr.c
index 144b87a..ee42093 100644
--- a/resolv/inet_addr.c
+++ b/resolv/inet_addr.c
@@ -90,13 +90,14 @@ static const char rcsid[] = "$BINDId: inet_addr.c,v 8.11 1999/10/13 16:39:25 vix
  * The value returned is in network order.
  */
 in_addr_t
-inet_addr(const char *cp) {
+__inet_addr(const char *cp) {
 	struct in_addr val;
 
 	if (__inet_aton(cp, &val))
 		return (val.s_addr);
 	return (INADDR_NONE);
 }
+weak_alias (__inet_addr, inet_addr)
 
 /*
  * Check whether "cp" is a valid ascii representation
diff --git a/resolv/inet_pton.c b/resolv/inet_pton.c
index c507013..3d88195 100644
--- a/resolv/inet_pton.c
+++ b/resolv/inet_pton.c
@@ -49,7 +49,7 @@ static int inet_pton6 (const char *src, u_char *dst) internal_function;
  *	Paul Vixie, 1996.
  */
 int
-inet_pton(af, src, dst)
+__inet_pton(af, src, dst)
 	int af;
 	const char *src;
 	void *dst;
@@ -65,7 +65,9 @@ inet_pton(af, src, dst)
 	}
 	/* NOTREACHED */
 }
-libc_hidden_def (inet_pton)
+libc_hidden_def (__inet_pton)
+weak_alias (__inet_pton, inet_pton)
+libc_hidden_weak (inet_pton)
 
 /* int
  * inet_pton4(src, dst)
diff --git a/resolv/res_init.c b/resolv/res_init.c
index 6eddcdd..d492a08 100644
--- a/resolv/res_init.c
+++ b/resolv/res_init.c
@@ -324,7 +324,7 @@ __res_vinit(res_state statp, int preinit) {
 			if ((el = strchr(cp, SCOPE_DELIMITER)) != NULL)
 			    *el = '\0';
 			if ((*cp != '\0') &&
-			    (inet_pton(AF_INET6, cp, &a6) > 0)) {
+			    (__inet_pton(AF_INET6, cp, &a6) > 0)) {
 			    struct sockaddr_in6 *sa6;
 
 			    sa6 = malloc(sizeof(*sa6));
@@ -428,7 +428,7 @@ __res_vinit(res_state statp, int preinit) {
 	    (void) fclose(fp);
 	}
 	if (__builtin_expect(statp->nscount == 0, 0)) {
-	    statp->nsaddr.sin_addr = inet_makeaddr(IN_LOOPBACKNET, 1);
+	    statp->nsaddr.sin_addr = __inet_makeaddr(IN_LOOPBACKNET, 1);
 	    statp->nsaddr.sin_family = AF_INET;
 	    statp->nsaddr.sin_port = htons(NAMESERVER_PORT);
 	    statp->nscount = 1;

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog           |   20 ++++++++++++++++++++
 NEWS                |    3 ++-
 conform/Makefile    |    3 ---
 include/arpa/inet.h |    5 ++++-
 inet/inet_mkadr.c   |    5 +++--
 resolv/inet_addr.c  |    3 ++-
 resolv/inet_pton.c  |    6 ++++--
 resolv/res_init.c   |    4 ++--
 8 files changed, 37 insertions(+), 12 deletions(-)


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