2.5-18.1

28 files changed, 531 insertions, 391 deletions

diff --git a/resolv/Depend b/resolv/Depend
index fe673ba5ec..8d2587bbc1 100644
--- a/resolv/Depend
+++ b/resolv/Depend
@@ -1 +1,2 @@
 linuxthreads
+nptl
diff --git a/resolv/Makefile b/resolv/Makefile
index f6230da8fb..6ac226735a 100644
--- a/resolv/Makefile
+++ b/resolv/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1994,1995,1996,1997,1998,1999,2000,2001,2003,2004
+# Copyright (C) 1994,1995,1996,1997,1998,1999,2000,2001,2003,2004,2007
 #	Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
 
@@ -32,7 +32,7 @@ distribute := ../conf/portability.h mapv4v6addr.h mapv4v6hostent.h \
 routines := herror inet_addr inet_ntop inet_pton nsap_addr res_init \
 	    res_hconf res_libc res-state
 
-tests = tst-aton tst-leaks
+tests = tst-aton tst-leaks tst-inet_ntop
 xtests = tst-leaks2
 
 generate := mtrace-tst-leaks tst-leaks.mtrace tst-leaks2.mtrace
diff --git a/resolv/Versions b/resolv/Versions
index 2a67677d8e..7016365be5 100644
--- a/resolv/Versions
+++ b/resolv/Versions
@@ -39,7 +39,7 @@ libc {
     h_errno; __resp;
 %endif
 
-    __res_maybe_init;
+    __res_maybe_init; __res_iclose;
   }
 }
 
diff --git a/resolv/gai_cancel.c b/resolv/gai_cancel.c
index 45432065c4..19a0a9bb87 100644
--- a/resolv/gai_cancel.c
+++ b/resolv/gai_cancel.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
@@ -20,7 +20,7 @@
 #include <netdb.h>
 #include <pthread.h>
 
-#include "gai_misc.h"
+#include <gai_misc.h>
 
 
 int
diff --git a/resolv/gai_error.c b/resolv/gai_error.c
index 0620b04b9d..4c91628a62 100644
--- a/resolv/gai_error.c
+++ b/resolv/gai_error.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
@@ -19,7 +19,7 @@
 
 #include <netdb.h>
 
-#include "gai_misc.h"
+#include <gai_misc.h>
 
 int
 gai_error (struct gaicb *req)
diff --git a/resolv/gai_misc.c b/resolv/gai_misc.c
index b3334f38ef..2eec0f529d 100644
--- a/resolv/gai_misc.c
+++ b/resolv/gai_misc.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
@@ -23,10 +23,31 @@
 #include <stdlib.h>
 #include <sys/time.h>
 
-#include "gai_misc.h"
+#include <gai_misc.h>
 
 
 
+#ifndef gai_create_helper_thread
+# define gai_create_helper_thread __gai_create_helper_thread
+
+extern inline int
+__gai_create_helper_thread (pthread_t *threadp, void *(*tf) (void *),
+			    void *arg)
+{
+  pthread_attr_t attr;
+
+  /* Make sure the thread is created detached.  */
+  pthread_attr_init (&attr);
+  pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
+
+  int ret = pthread_create (threadp, &attr, tf, arg);
+
+  (void) pthread_attr_destroy (&attr);
+  return ret;
+}
+#endif
+
+
 /* Pool of request list entries.  */
 static struct requestlist **pool;
 
@@ -229,16 +250,11 @@ __gai_enqueue_request (struct gaicb *gaicbp)
   if (nthreads < optim.gai_threads && idle_thread_count == 0)
     {
       pthread_t thid;
-      pthread_attr_t attr;
 
       newp->running = 1;
 
-      /* Make sure the thread is created detached.  */
-      pthread_attr_init (&attr);
-      pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
-
       /* Now try to start a thread.  */
-      if (pthread_create (&thid, &attr, handle_requests, newp) == 0)
+      if (gai_create_helper_thread (&thid, handle_requests, newp) == 0)
 	/* We managed to enqueue the request.  All errors which can
 	   happen now can be recognized by calls to `gai_error'.  */
 	++nthreads;
diff --git a/resolv/gai_misc.h b/resolv/gai_misc.h
index 48a93977ae..94005de02c 100644
--- a/resolv/gai_misc.h
+++ b/resolv/gai_misc.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
@@ -29,7 +29,9 @@ struct waitlist
   {
     struct waitlist *next;
 
+#ifndef DONT_NEED_GAI_MISC_COND
     pthread_cond_t *cond;
+#endif
     volatile int *counterp;
     /* The next field is used in asynchronous `lio_listio' operations.  */
     struct sigevent *sigevp;
diff --git a/resolv/gai_notify.c b/resolv/gai_notify.c
index 987a64c0e2..c3ce0afb45 100644
--- a/resolv/gai_notify.c
+++ b/resolv/gai_notify.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
@@ -20,15 +20,24 @@
 #include <netdb.h>
 #include <pthread.h>
 #include <stdlib.h>
+#include <gai_misc.h>
 
-#include "gai_misc.h"
 
+struct notify_func
+  {
+    void (*func) (sigval_t);
+    sigval_t value;
+  };
 
 static void *
 notify_func_wrapper (void *arg)
 {
-  struct sigevent *sigev = arg;
-  sigev->sigev_notify_function (sigev->sigev_value);
+  gai_start_notify_thread ();
+  struct notify_func *const n = arg;
+  void (*func) (sigval_t) = n->func;
+  sigval_t value = n->value;
+  free (n);
+  (*func) (value);
   return NULL;
 }
 
@@ -54,8 +63,26 @@ __gai_notify_only (struct sigevent *sigev, pid_t caller_pid)
 	  pattr = &attr;
 	}
 
-      if (pthread_create (&tid, pattr, notify_func_wrapper, sigev) < 0)
+      /* SIGEV may be freed as soon as we return, so we cannot let the
+	 notification thread use that pointer.  Even though a sigval_t is
+	 only one word and the same size as a void *, we cannot just pass
+	 the value through pthread_create as the argument and have the new
+	 thread run the user's function directly, because on some machines
+	 the calling convention for a union like sigval_t is different from
+	 that for a pointer type like void *.  */
+      struct notify_func *nf = malloc (sizeof *nf);
+      if (nf == NULL)
 	result = -1;
+      else
+	{
+	  nf->func = sigev->sigev_notify_function;
+	  nf->value = sigev->sigev_value;
+	  if (pthread_create (&tid, pattr, notify_func_wrapper, nf) < 0)
+	    {
+	      free (nf);
+	      result = -1;
+	    }
+	}
     }
   else if (sigev->sigev_notify == SIGEV_SIGNAL)
     /* We have to send a signal.  */
@@ -79,15 +106,21 @@ __gai_notify (struct requestlist *req)
     {
       struct waitlist *next = waitlist->next;
 
-      /* Decrement the counter.  This is used in both cases.  */
-      --*waitlist->counterp;
-
       if (waitlist->sigevp == NULL)
-	pthread_cond_signal (waitlist->cond);
+	{
+#ifdef DONT_NEED_GAI_MISC_COND
+	  GAI_MISC_NOTIFY (waitlist);
+#else
+	  /* Decrement the counter.  */
+	  --*waitlist->counterp;
+
+	  pthread_cond_signal (waitlist->cond);
+#endif
+	}
       else
 	/* This is part of a asynchronous `getaddrinfo_a' operation.  If
 	   this request is the last one, send the signal.  */
-	if (*waitlist->counterp == 0)
+	if (--*waitlist->counterp == 0)
 	  {
 	    __gai_notify_only (waitlist->sigevp, waitlist->caller_pid);
 	    /* This is tricky.  See getaddrinfo_a.c for the reason why
diff --git a/resolv/gai_sigqueue.c b/resolv/gai_sigqueue.c
new file mode 100644
index 0000000000..278a1d8026
--- /dev/null
+++ b/resolv/gai_sigqueue.c
@@ -0,0 +1,36 @@
+/* Copyright (C) 2001, 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <aio.h>
+#include <errno.h>
+#include <signal.h>
+
+#include <gai_misc.h>
+
+int
+__gai_sigqueue (sig, val, caller_pid)
+     int sig;
+     const union sigval val;
+     pid_t caller_pid;
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+stub_warning (__gai_sigqueue)
+#include <stub-tag.h>
diff --git a/resolv/gai_suspend.c b/resolv/gai_suspend.c
index bb3c9c3402..4d85ac2c10 100644
--- a/resolv/gai_suspend.c
+++ b/resolv/gai_suspend.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
@@ -23,7 +23,7 @@
 #include <stdlib.h>
 #include <sys/time.h>
 
-#include "gai_misc.h"
+#include <gai_misc.h>
 
 
 int
@@ -32,9 +32,11 @@ gai_suspend (const struct gaicb *const list[], int ent,
 {
   struct waitlist waitlist[ent];
   struct requestlist *requestlist[ent];
+#ifndef DONT_NEED_GAI_MISC_COND
   pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
+#endif
   int cnt;
-  int dummy;
+  int cntr = 1;
   int none = 1;
   int result;
 
@@ -50,9 +52,11 @@ gai_suspend (const struct gaicb *const list[], int ent,
 
 	if (requestlist[cnt] != NULL)
 	  {
+#ifndef DONT_NEED_GAI_MISC_COND
 	    waitlist[cnt].cond = &cond;
+#endif
 	    waitlist[cnt].next = requestlist[cnt]->waiting;
-	    waitlist[cnt].counterp = &dummy;
+	    waitlist[cnt].counterp = &cntr;
 	    waitlist[cnt].sigevp = NULL;
 	    waitlist[cnt].caller_pid = 0;	/* Not needed.  */
 	    requestlist[cnt]->waiting = &waitlist[cnt];
@@ -78,6 +82,10 @@ gai_suspend (const struct gaicb *const list[], int ent,
 	 which we must remove.  So defer cancelation for now.  */
       pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &oldstate);
 
+#ifdef DONT_NEED_GAI_MISC_COND
+      result = 0;
+      GAI_MISC_WAIT (result, cntr, timeout, 1);
+#else
       if (timeout == NULL)
 	result = pthread_cond_wait (&cond, &__gai_requests_mutex);
       else
@@ -99,6 +107,7 @@ gai_suspend (const struct gaicb *const list[], int ent,
 	  result = pthread_cond_timedwait (&cond, &__gai_requests_mutex,
 					   &abstime);
 	}
+#endif
 
       /* Now remove the entry in the waiting list for all requests
 	 which didn't terminate.  */
@@ -121,10 +130,12 @@ gai_suspend (const struct gaicb *const list[], int ent,
       /* Now it's time to restore the cancelation state.  */
       pthread_setcancelstate (oldstate, NULL);
 
+#ifndef DONT_NEED_GAI_MISC_COND
       /* Release the conditional variable.  */
       if (pthread_cond_destroy (&cond) != 0)
 	/* This must never happen.  */
 	abort ();
+#endif
 
       if (result != 0)
 	{
diff --git a/resolv/getaddrinfo_a.c b/resolv/getaddrinfo_a.c
index abac27d361..f6af3aa45a 100644
--- a/resolv/getaddrinfo_a.c
+++ b/resolv/getaddrinfo_a.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
@@ -23,7 +23,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-#include "gai_misc.h"
+#include <gai_misc.h>
 
 
 /* We need this special structure to handle asynchronous I/O.  */
@@ -96,7 +96,9 @@ getaddrinfo_a (int mode, struct gaicb *list[], int ent, struct sigevent *sig)
     }
   else if (mode == GAI_WAIT)
     {
+#ifndef DONT_NEED_GAI_MISC_COND
       pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
+#endif
       struct waitlist waitlist[ent];
       int oldstate;
 
@@ -104,7 +106,9 @@ getaddrinfo_a (int mode, struct gaicb *list[], int ent, struct sigevent *sig)
       for (cnt = 0; cnt < ent; ++cnt)
 	if (requests[cnt] != NULL)
 	  {
+#ifndef DONT_NEED_GAI_MISC_COND
 	    waitlist[cnt].cond = &cond;
+#endif
 	    waitlist[cnt].next = requests[cnt]->waiting;
 	    waitlist[cnt].counterp = &total;
 	    waitlist[cnt].sigevp = NULL;
@@ -119,15 +123,24 @@ getaddrinfo_a (int mode, struct gaicb *list[], int ent, struct sigevent *sig)
       pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &oldstate);
 
       while (total > 0)
-	pthread_cond_wait (&cond, &__gai_requests_mutex);
+	{
+#ifdef DONT_NEED_GAI_MISC_COND
+	  int result;
+	  GAI_MISC_WAIT (result, total, NULL, 1);
+#else
+	  pthread_cond_wait (&cond, &__gai_requests_mutex);
+#endif
+	}
 
       /* Now it's time to restore the cancelation state.  */
       pthread_setcancelstate (oldstate, NULL);
 
+#ifndef DONT_NEED_GAI_MISC_COND
       /* Release the conditional variable.  */
       if (pthread_cond_destroy (&cond) != 0)
 	/* This must never happen.  */
 	abort ();
+#endif
     }
   else
     {
@@ -147,7 +160,9 @@ getaddrinfo_a (int mode, struct gaicb *list[], int ent, struct sigevent *sig)
 	  for (cnt = 0; cnt < ent; ++cnt)
 	    if (requests[cnt] != NULL)
 	      {
+#ifndef DONT_NEED_GAI_MISC_COND
 		waitlist->list[cnt].cond = NULL;
+#endif
 		waitlist->list[cnt].next = requests[cnt]->waiting;
 		waitlist->list[cnt].counterp = &waitlist->counter;
 		waitlist->list[cnt].sigevp = &waitlist->sigev;
diff --git a/resolv/gethnamaddr.c b/resolv/gethnamaddr.c
index 3698e4b841..7be23158d0 100644
--- a/resolv/gethnamaddr.c
+++ b/resolv/gethnamaddr.c
@@ -51,7 +51,6 @@
 
 #if defined(LIBC_SCCS) && !defined(lint)
 static char sccsid[] = "@(#)gethostnamadr.c	8.1 (Berkeley) 6/4/93";
-static char rcsid[] = "$Id$";
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/types.h>
@@ -177,11 +176,7 @@ Dprintf(msg, num)
 
 
 static struct hostent *
-getanswer(answer, anslen, qname, qtype)
-	const querybuf *answer;
-	int anslen;
-	const char *qname;
-	int qtype;
+getanswer (const querybuf *answer, int anslen, const char *qname, int qtype)
 {
 	register const HEADER *hp;
 	register const u_char *cp;
@@ -523,7 +518,6 @@ gethostbyname2(name, af)
 	char *bp;
 	int n, size, type, len;
 	struct hostent *ret;
-	extern struct hostent *_gethtbyname2();
 
 	if (__res_maybe_init (&_res, 0) == -1) {
 		__set_h_errno (NETDB_INTERNAL);
@@ -667,7 +661,6 @@ gethostbyaddr(addr, len, af)
 	u_long old_options;
 	char hname2[MAXDNAME+1];
 #endif /*SUNSECURITY*/
-	extern struct hostent *_gethtbyaddr();
 
 	if (__res_maybe_init (&_res, 0) == -1) {
 		__set_h_errno (NETDB_INTERNAL);
@@ -880,7 +873,6 @@ struct hostent *
 _gethtbyname(name)
 	const char *name;
 {
-	extern struct hostent *_gethtbyname2();
 	struct hostent *hp;
 
 	if (_res.options & RES_USE_INET6) {
diff --git a/resolv/herror.c b/resolv/herror.c
index a61a3a9a4d..0aaf29f9db 100644
--- a/resolv/herror.c
+++ b/resolv/herror.c
@@ -64,14 +64,14 @@ static const char rcsid[] = "$BINDId: herror.c,v 8.11 1999/10/13 16:39:39 vixie
 #include <libintl.h>
 #include <not-cancel.h>
 
-const char *h_errlist[] = {
+const char *const h_errlist[] = {
 	N_("Resolver Error 0 (no error)"),
 	N_("Unknown host"),			/* 1 HOST