2.5-18.1

23 files changed, 1051 insertions, 436 deletions

diff --git a/sysdeps/posix/Makefile b/sysdeps/posix/Makefile
new file mode 100644
index 0000000000..b58aa6aadb
--- /dev/null
+++ b/sysdeps/posix/Makefile
@@ -0,0 +1,5 @@
+# These affect the generated bits/stdio_lim.h file.
+L_tmpnam  = 20
+TMP_MAX   = 238328
+L_ctermid = 9
+L_cuserid = 9
diff --git a/sysdeps/posix/clock_getres.c b/sysdeps/posix/clock_getres.c
index a2d466607e..f4dc21f8af 100644
--- a/sysdeps/posix/clock_getres.c
+++ b/sysdeps/posix/clock_getres.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
+/* clock_getres -- Get the resolution of a POSIX clockid_t.
+   Copyright (C) 1999, 2000, 2001, 2003, 2004 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
@@ -24,11 +25,55 @@
 #include <libc-internal.h>
 
 
-#if HP_TIMING_AVAIL && !defined HANDLED_CPUTIME
-/* Clock frequency of the processor.  */
-static long int nsec;
+#if HP_TIMING_AVAIL
+static long int nsec;		/* Clock frequency of the processor.  */
+
+static inline int
+hp_timing_getres (struct timespec *res)
+{
+  if (__builtin_expect (nsec == 0, 0))
+    {
+      hp_timing_t freq;
+
+      /* This can only happen if we haven't initialized the `nsec'
+	 variable yet.  Do this now.  We don't have to protect this
+	 code against multiple execution since all of them should
+	 lead to the same result.  */
+      freq = __get_clockfreq ();
+      if (__builtin_expect (freq == 0, 0))
+	/* Something went wrong.  */
+	return -1;
+
+      nsec = MAX (UINT64_C (1000000000) / freq, 1);
+    }
+
+  /* Fill in the values.
+     The seconds are always zero (unless we have a 1Hz machine).  */
+  res->tv_sec = 0;
+  res->tv_nsec = nsec;
+
+  return 0;
+}
 #endif
 
+static inline int
+realtime_getres (struct timespec *res)
+{
+  long int clk_tck = sysconf (_SC_CLK_TCK);
+
+  if (__builtin_expect (clk_tck != -1, 1))
+    {
+      /* This implementation assumes that the realtime clock has a
+	 resolution higher than 1 second.  This is the case for any
+	 reasonable implementation.  */
+      res->tv_sec = 0;
+      res->tv_nsec = 1000000000 / clk_tck;
+      return 0;
+    }
+
+  return -1;
+}
+
 
 /* Get resolution of clock.  */
 int
@@ -38,69 +83,33 @@ clock_getres (clockid_t clock_id, struct timespec *res)
 
   switch (clock_id)
     {
-#define HANDLE_REALTIME \
-      do {								      \
-	long int clk_tck = sysconf (_SC_CLK_TCK);			      \
-									      \
-	if (__builtin_expect (clk_tck != -1, 1))			      \
-	  {								      \
-	    /* This implementation assumes that the realtime clock has a      \
-	       resolution higher than 1 second.  This is the case for any     \
-	       reasonable implementation.  */				      \
-	    res->tv_sec = 0;						      \
-	    res->tv_nsec = 1000000000 / clk_tck;			      \
-									      \
-	    retval = 0;							      \
-	  }								      \
-      } while (0)
-
 #ifdef SYSDEP_GETRES
       SYSDEP_GETRES;
 #endif
 
 #ifndef HANDLED_REALTIME
     case CLOCK_REALTIME:
-      HANDLE_REALTIME;
+      retval = realtime_getres (res);
       break;
 #endif	/* handled REALTIME */
 
     default:
+#ifdef SYSDEP_GETRES_CPU
+      SYSDEP_GETRES_CPU;
+#endif
 #if HP_TIMING_AVAIL
       if ((clock_id & ((1 << CLOCK_IDFIELD_SIZE) - 1))
-	  != CLOCK_THREAD_CPUTIME_ID)
+	  == CLOCK_THREAD_CPUTIME_ID)
+	retval = hp_timing_getres (res);
+      else
 #endif
-	{
-	  __set_errno (EINVAL);
-	  break;
-	}
+	__set_errno (EINVAL);
+      break;
 
 #if HP_TIMING_AVAIL && !defined HANDLED_CPUTIME
-      /* FALLTHROUGH.  */
     case CLOCK_PROCESS_CPUTIME_ID:
-      {
-	if (__builtin_expect (nsec == 0, 0))
-	  {
-	    hp_timing_t freq;
-
-	    /* This can only happen if we haven't initialized the `freq'
-	       variable yet.  Do this now. We don't have to protect this
-	       code against multiple execution since all of them should
-	       lead to the same result.  */
-	    freq = __get_clockfreq ();
-	    if (__builtin_expect (freq == 0, 0))
-	      /* Something went wrong.  */
-	      break;
-
-	    nsec = MAX (UINT64_C (1000000000) / freq, 1);
-	  }
-
-	/* File in the values.  The seconds are always zero (unless we
-	   have a 1Hz machine).  */
-	res->tv_sec = 0;
-	res->tv_nsec = nsec;
-
-	retval = 0;
-      }
+    case CLOCK_THREAD_CPUTIME_ID:
+      retval = hp_timing_getres (res);
       break;
 #endif
     }
diff --git a/sysdeps/posix/euidaccess.c b/sysdeps/posix/euidaccess.c
index 8a2d826e95..333870cdde 100644
--- a/sysdeps/posix/euidaccess.c
+++ b/sysdeps/posix/euidaccess.c
@@ -1,5 +1,5 @@
 /* Check if effective user id can access file
-   Copyright (C) 1990,91,95,96,97,98,99,2000,01 Free Software Foundation, Inc.
+   Copyright (C) 1990,1991,1995-2001,2005,2007 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
@@ -21,26 +21,26 @@
    Adapted for GNU C library by Roland McGrath.  */
 
 #ifdef HAVE_CONFIG_H
-#include <config.h>
+# include <config.h>
 #endif
 
 #include <sys/types.h>
 #include <sys/stat.h>
 
 #ifdef S_IEXEC
-#ifndef S_IXUSR
-#define S_IXUSR S_IEXEC
-#endif
-#ifndef S_IXGRP
-#define S_IXGRP (S_IEXEC >> 3)
-#endif
-#ifndef S_IXOTH
-#define S_IXOTH (S_IEXEC >> 6)
-#endif
+# ifndef S_IXUSR
+#  define S_IXUSR S_IEXEC
+# endif
+# ifndef S_IXGRP
+#  define S_IXGRP (S_IEXEC >> 3)
+# endif
+# ifndef S_IXOTH
+#  define S_IXOTH (S_IEXEC >> 6)
+# endif
 #endif /* S_IEXEC */
 
-#if defined (HAVE_UNISTD_H) || defined (_LIBC)
-#include <unistd.h>
+#if defined HAVE_UNISTD_H || defined _LIBC
+# include <unistd.h>
 #endif
 
 #ifndef _POSIX_VERSION
@@ -55,35 +55,35 @@ gid_t getegid ();
 extern int errno;
 #endif
 #ifndef __set_errno
-#define __set_errno(val) errno = (val)
+# define __set_errno(val) errno = (val)
 #endif
 
-#if defined(EACCES) && !defined(EACCESS)
-#define EACCESS EACCES
+#if defined EACCES && !defined EACCESS
+# define EACCESS EACCES
 #endif
 
 #ifndef F_OK
-#define F_OK 0
-#define X_OK 1
-#define W_OK 2
-#define R_OK 4
+# define F_OK 0
+# define X_OK 1
+# define W_OK 2
+# define R_OK 4
 #endif
 
-#if !defined (S_IROTH) && defined (R_OK)
+#if !defined S_IROTH && defined R_OK
 # define S_IROTH R_OK
 #endif
-#if !defined (S_IWOTH) && defined (W_OK)
+#if !defined S_IWOTH && defined W_OK
 # define S_IWOTH W_OK
 #endif
-#if !defined (S_IXOTH) && defined (X_OK)
+#if !defined S_IXOTH && defined X_OK
 # define S_IXOTH X_OK
 #endif
 
 
 #ifdef _LIBC
 
-#define group_member __group_member
-#define euidaccess __euidaccess
+# define group_member __group_member
+# define euidaccess __euidaccess
 
 #else
 
@@ -93,14 +93,6 @@ static uid_t uid;
 /* The user's real group id. */
 static gid_t gid;
 
-#ifdef HAVE_GETGROUPS
-int group_member ();
-#else
-#define group_member(gid)	0
-#endif
-
-#endif
-
 /* The user's effective user id. */
 static uid_t euid;
 
@@ -110,6 +102,14 @@ static gid_t egid;
 /* Nonzero if UID, GID, EUID, and EGID have valid values. */
 static int have_ids;
 
+# ifdef HAVE_GETGROUPS
+int group_member ();
+# else
+#  define group_member(gid)	0
+# endif
+
+#endif
+
 
 /* Return 0 if the user has permission of type MODE on file PATH;
    otherwise, return -1 and set `errno' to EACCESS.
@@ -126,9 +126,8 @@ euidaccess (path, mode)
   int granted;
 
 #ifdef	_LIBC
-  if (! __libc_enable_secure)
-    /* If we are not set-uid or set-gid, access does the same.  */
-    return __access (path, mode);
+  uid_t euid;
+  gid_t egid;
 #else
   if (have_ids == 0)
     {
@@ -157,12 +156,12 @@ euidaccess (path, mode)
 
 #ifdef	_LIBC
   /* Now we need the IDs.  */
-  if (have_ids == 0)
-    {
-      have_ids = 1;
-      euid = __geteuid ();
-      egid = __getegid ();
-    }
+  euid = __geteuid ();
+  egid = __getegid ();
+
+  if (__getuid () == euid && __getgid () == egid)
+    /* If we are not set-uid or set-gid, access does the same.  */
+    return __access (path, mode);
 #endif
 
   /* The super-user can read and write any file, and execute any file
@@ -172,25 +171,28 @@ euidaccess (path, mode)
     return 0;
 
   if (euid == stats.st_uid)
-    granted = (unsigned) (stats.st_mode & (mode << 6)) >> 6;
+    granted = (unsigned int) (stats.st_mode & (mode << 6)) >> 6;
   else if (egid == stats.st_gid || group_member (stats.st_gid))
-    granted = (unsigned) (stats.st_mode & (mode << 3)) >> 3;
+    granted = (unsigned int) (stats.st_mode & (mode << 3)) >> 3;
   else
     granted = (stats.st_mode & mode);
+  /* XXX Add support for ACLs.  */
   if (granted == mode)
     return 0;
   __set_errno (EACCESS);
   return -1;
 }
 #undef euidaccess
+#undef eaccess
 #ifdef weak_alias
 weak_alias (__euidaccess, euidaccess)
+weak_alias (__euidaccess, eaccess)
 #endif
 
 #ifdef TEST
-#include <stdio.h>
-#include <errno.h>
-#include "error.h"
+# include <stdio.h>
+# include <errno.h>
+# include "error.h"
 
 char *program_name;
 
diff --git a/sysdeps/posix/gai_strerror-strs.h b/sysdeps/posix/gai_strerror-strs.h
new file mode 100644
index 0000000000..19040a5138
--- /dev/null
+++ b/sysdeps/posix/gai_strerror-strs.h
@@ -0,0 +1,17 @@
+_S(EAI_ADDRFAMILY, N_("Address family for hostname not supported"))
+_S(EAI_AGAIN, N_("Temporary failure in name resolution"))
+_S(EAI_BADFLAGS, N_("Bad value for ai_flags"))
+_S(EAI_FAIL, N_("Non-recoverable failure in name resolution"))
+_S(EAI_FAMILY, N_("ai_family not supported"))
+_S(EAI_MEMORY, N_("Memory allocation failure"))
+_S(EAI_NODATA, N_("No address associated with hostname"))
+_S(EAI_NONAME, N_("Name or service not known"))
+_S(EAI_SERVICE, N_("Servname not supported for ai_socktype"))
+_S(EAI_SOCKTYPE, N_("ai_socktype not supported"))
+_S(EAI_SYSTEM, N_("System error"))
+_S(EAI_INPROGRESS, N_("Processing request in progress"))
+_S(EAI_CANCELED, N_("Request canceled"))
+_S(EAI_NOTCANCELED, N_("Request not canceled"))
+_S(EAI_ALLDONE, N_("All requests done"))
+_S(EAI_INTR, N_("Interrupted by a signal"))
+_S(EAI_IDN_ENCODE, N_("Parameter string not correctly encoded"))
diff --git a/sysdeps/posix/gai_strerror.c b/sysdeps/posix/gai_strerror.c
index e2835a5674..cc13dd4dab 100644
--- a/sysdeps/posix/gai_strerror.c
+++ b/sysdeps/posix/gai_strerror.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 2001, 2002, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 2001, 2002, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Philip Blundell <pjb27@cam.ac.uk>, 1997.
 
@@ -17,44 +17,54 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-#include <stdio.h>
-#include <netdb.h>
 #include <libintl.h>
+#include <netdb.h>
+#include <stdint.h>
+#include <stdio.h>
+
 
-static struct
+#define MSGSTRFIELD(line) MSGSTRFIELD1 (line)
+#define MSGSTRFIELD1(line) str##line
+static const union msgstr_t
+{
+  struct
   {
-    int code;
-    const char *msg;
-  }
-values[] =
+#define _S(n, s) char MSGSTRFIELD(__LINE__)[sizeof (s)];
+#include "gai_strerror-strs.h"
+#undef _S
+  };
+  char str[0];
+} msgstr =
   {
-    { EAI_ADDRFAMILY, N_("Address family for hostname not supported") },
-    { EAI_AGAIN, N_("Temporary failure in name resolution") },
-    { EAI_BADFLAGS, N_("Bad value for ai_flags") },
-    { EAI_FAIL, N_("Non-recoverable failure in name resolution") },
-    { EAI_FAMILY, N_("ai_family not supported") },
-    { EAI_MEMORY, N_("Memory allocation failure") },
-    { EAI_NODATA, N_("No address associated with hostname") },
-    { EAI_NONAME, N_("Name or service not known") },
-    { EAI_SERVICE, N_("Servname not supported for ai_socktype") },
-    { EAI_SOCKTYPE, N_("ai_socktype not supported") },
-    { EAI_SYSTEM, N_("System error") },
-    { EAI_INPROGRESS, N_("Processing request in progress") },
-    { EAI_CANCELED, N_("Request canceled") },
-    { EAI_NOTCANCELED, N_("Request not canceled") },
-    { EAI_ALLDONE, N_("All requests done") },
-    { EAI_INTR, N_("Interrupted by a signal") },
-    { EAI_IDN_ENCODE, N_("Parameter string not correctly encoded") }
+    {
+#define _S(n, s) s,
+#include "gai_strerror-strs.h"
+#undef _S
+    }
   };
+static const struct
+{
+  int16_t code;
+  uint16_t idx;
+} msgidx[] =
+  {
+#define _S(n, s) { n, offsetof (union msgstr_t, MSGSTRFIELD (__LINE__)) },
+#include "gai_strerror-strs.h"
+#undef _S
+  };
+
 
 const char *
 gai_strerror (int code)
 {
-  size_t i;
-  for (i = 0; i < sizeof (values) / sizeof (values[0]); ++i)
-    if (values[i].code == code)
-      return _(values[i].msg);
+  const char *result = "Unknown error";
+  for (size_t i = 0; i < sizeof (msgidx) / sizeof (msgidx[0]); ++i)
+    if (msgidx[i].code == code)
+      {
+	result = msgstr.str + msgidx[i].idx;
+	break;
+      }
 
-  return _("Unknown error");
+  return _(result);
 }
 libc_hidden_def (gai_strerror)
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index c9081345ab..a7e1459c9c 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -36,23 +36,27 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /* This software is Copyright 1996 by Craig Metz, All Rights Reserved.  */
 
 #include <assert.h>
+#include <ctype.h>
 #include <errno.h>
 #include <ifaddrs.h>
 #include <netdb.h>
 #include <resolv.h>
 #include <stdbool.h>
 #include <stdio.h>
+#include <stdio_ext.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 #include <arpa/inet.h>
-#include <sys/socket.h>
+#include <net/if.h>
 #include <netinet/in.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/un.h>
 #include <sys/utsname.h>
-#include <net/if.h>
+#include <unistd.h>
 #include <nsswitch.h>
+#include <bits/libc-lock.h>
 #include <not-cancel.h>
 #include <nscd/nscd-client.h>
 #include <nscd/nscd_proto.h>
@@ -68,7 +72,7 @@ extern int __idna_to_unicode_lzlz (const char *input, char **output,
 #define GAIH_EAI        ~(GAIH_OKIFUNSPEC)
 
 #ifndef UNIX_PATH_MAX
-#define UNIX_PATH_MAX  108
+# define UNIX_PATH_MAX  108
 #endif
 
 struct gaih_service
@@ -121,7 +125,8 @@ struct gaih
   {
     int family;
     int (*gaih)(const char *name, const struct gaih_service *service,
-		const struct addrinfo *req, struct addrinfo **pai);
+		const struct addrinfo *req, struct addrinfo **pai,
+		unsigned int *naddrs);
   };
 
 static const struct addrinfo default_hints =
@@ -176,9 +181,9 @@ gaih_local (const char *name, const struct gaih_service *service,
       if (! tp->name[0])
 	{
 	  if (req->ai_socktype)
-	    return (GAIH_OKIFUNSPEC | -EAI_SOCKTYPE);
+	    return GAIH_OKIFUNSPEC | -EAI_SOCKTYPE;
 	  else
-	    return (GAIH_OKIFUNSPEC | -EAI_SERVICE);
+	    return GAIH_OKIFUNSPEC | -EAI_SERVICE;
 	}
     }
 
@@ -196,10 +201,10 @@ gaih_local (const char *name, const struct gaih_service *service,
   (*pai)->ai_addrlen = sizeof (struct sockaddr_un);
   (*pai)->ai_addr = (void *) (*pai) + sizeof (struct addrinfo);
 
-#if SALEN
+#ifdef _HAVE_SA_LEN
   ((struct sockaddr_un *) (*pai)->ai_addr)->sun_len =
     sizeof (struct sockaddr_un);
-#endif /* SALEN */
+#endif /* _HAVE_SA_LEN */
 
   ((struct sockaddr_un *)(*pai)->ai_addr)->sun_family = AF_LOCAL;
   memset(((struct sockaddr_un *)(*pai)->ai_addr)->sun_path, 0, UNIX_PATH_MAX);
@@ -248,9 +253,10 @@ gaih_local (const char *name, const struct gaih_service *service,
 }
 #endif	/* 0 */
 
+
 static int
 gaih_inet_serv (const char *servicename, const struct gaih_typeproto *tp,
-	       const struct addrinfo *req, struct gaih_servtuple *st)
+		const struct addrinfo *req, struct gaih_servtuple *st)
 {
   struct servent *s;
   size_t tmpbuflen = 1024;
@@ -361,9 +367,11 @@ typedef enum nss_status (*nss_getcanonname_r)
    int *errnop, int *h_errnop);
 extern service_user *__nss_hosts_database attribute_hidden;
 
+
 static int
 gaih_inet (const char *name, const struct gaih_service *service,
-	   const struct addrinfo *req, struct addrinfo **pai)
+	   const struct addrinfo *req, struct addrinfo **pai,
+	   unsigned int *naddrs)
 {
   const struct gaih_typeproto *tp = gaih_inet_typeproto;
   struct gaih_servtuple *st = (struct gaih_servtuple *) &nullserv;
@@ -387,16 +395,17 @@ gaih_inet (const char *name, const struct gaih_service *service,
       if (! tp->name[0])
 	{
 	  if (req->ai_socktype)
-	    return (GAIH_OKIFUNSPEC | -EAI_SOCKTYPE);
+	    return GAIH_OKIFUNSPEC | -EAI_SOCKTYPE;
 	  else
-	    return (GAIH_OKIFUNSPEC | -EAI_SERVICE);
+	    return GAIH_OKIFUNSPEC | -EAI_SERVICE;
 	}
     }
 
+  int port = 0;
   if (service != NULL)
     {
       if ((tp->protoflag & GAI_PROTO_NOSERVICE) != 0)
-	return (GAIH_OKIFUNSPEC | -EAI_SERVICE);
+	return GAIH_OKIFUNSPEC | -EAI_SERVICE;
 
       if (service->num < 0)
 	{
@@ -440,68 +449,46 @@ gaih_inet (const char *name, const struct gaih_service *service,
 		  pst = &(newp->next);
 		}
 	      if (st == (struct gaih_servtuple *) &nullserv)
-		return (GAIH_OKIFUNSPEC | -EAI_SERVICE);
+		return GAIH_OKIFUNSPEC | -EAI_SERVICE;
 	    }
 	}
       else
 	{
-	  if (req->ai_socktype || req->ai_protocol)
-	    {
-	      st = __alloca (sizeof (struct gaih_servtuple));
-	      st->next = NULL;
-	      st->socktype = tp->socktype;
-	      st->protocol = ((tp->protoflag & GAI_PROTO_PROTOANY)
-			      ? req->ai_protocol : tp->protocol);
-	      st->port = htons (service->num);
-	    }
-	  else
-	    {
-	      /* Neither socket type nor protocol is set.  Return all
-		 socket types we know about.  */
-	      struct gaih_servtuple **lastp = &st;
-	      for (tp = gaih_inet_typeproto + 1; tp->name[0]; ++tp)
-		if ((tp->protoflag & GAI_PROTO_NOSERVICE) == 0)
-		  {
-		    struct gaih_servtuple *newp;
-
-		    newp = __alloca (sizeof (struct gaih_servtuple));
-		    newp->next = NULL;
-		    newp->socktype = tp->socktype;
-		    newp->protocol = tp->protocol;
-		    newp->port = htons (service->num);
-
-		    *lastp = newp;
-		    lastp = &newp->next;
-		  }
-	    }
+	  port = htons (service->num);
+	  goto got_port;
 	}
     }
-  else if (req->ai_socktype || req->ai_protocol)
-    {
-      st = __alloca (sizeof (struct gaih_servtuple));
-      st->next = NULL;
-      st->socktype = tp->socktype;
-      st->protocol = ((tp->protoflag & GAI_PROTO_PROTOANY)
-		      ? req->ai_protocol : tp->protocol);
-      st->port = 0;
-    }
   else
     {
-      /* Neither socket type nor protocol is set.  Return all socket types
-	 we know about.  */
-      struct gaih_servtuple **lastp = &st;
-      for (++tp; tp->name[0]; ++tp)
+    got_port:
+
+      if (req->ai_socktype || req->ai_protocol)
+	{
+	  st = __alloca (sizeof (struct gaih_servtuple));
+	  st->next = NULL;
+	  st->socktype = tp->socktype;
+	  st->protocol = ((tp->protoflag & GAI_PROTO_PROTOANY)
+			  ? req->ai_protocol : tp->protocol);
+	  st->port = port;
+	}
+      else
 	{
-	  struct gaih_servtuple *newp;
+	  /* Neither socket type nor protocol is set.  Return all socket types
+	     we know about.  */
+	  struct gaih_servtuple **lastp = &st;
+	  for (++tp; tp->name[0]; ++tp)
+	    {
+	      struct gaih_servtuple *newp;
 
-	  newp = __alloca (sizeof (struct gaih_servtuple));
-	  newp->next = NULL;
-	  newp->socktype = tp->socktype;
-	  newp->protocol = tp->protocol;
-	  newp->port = 0;
+	      newp = __alloca (sizeof (struct gaih_servtuple));
+	      newp->next = NULL;
+	      newp->socktype = tp->socktype;
+	      newp->protocol = tp->protocol;
+	      newp->port = port;
 
-	  *lastp = newp;
-	  lastp = &newp->next;
+	      *lastp = newp;
+	      lastp = &newp->next;
+	    }
 	}
     }
 
@@ -546,7 +533,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
 	{
 	  if (req->ai_family == AF_UNSPEC || req->ai_family == AF_INET)
 	    at->family = AF_INET;
-	  else if (req->ai_family == AF_INET6 && req->ai_flags & AI_V4MAPPED)
+	  else if (req->ai_family == AF_INET6 && (req->ai_flags & AI_V4MAPPED))
 	    {
 	      at->addr[3] = at->addr[0];
 	      at->addr[2] = htonl (0xffff);
@@ -557,23 +544,19 @@ gaih_inet (const char *name, const struct gaih_service *service,
 	  else
 	    return -EAI_ADDRFAMILY;
 
-	dupname:
 	  if (req->ai_flags & AI_CANONNAME)
-	    {
-	      canon = strdup (name);
-	      if (canon == NULL)
-		return -EAI_MEMORY;
-	    }
+	    canon = name;
 	}
-
-      if (at->family == AF_UNSPEC)
+      else if (at->family == AF_UNSPEC)
 	{
-	  char *namebuf = strdupa (name);
-	  char *scope_delim;
+	  char *namebuf = (char *) name;
+	  char *scope_delim = strchr (name, SCOPE_DELIMITER);
 
-	  scope_delim = strchr (namebuf, SCOPE_DELIMITER);
-	  if (scope_delim != NULL)
-	    *scope_delim = '\0';
+	  if (__builtin_expect (scope_delim != NULL, 0))
+	    {
+	      namebuf = alloca (scope_delim - name + 1);
+	      *((char *) __mempcpy (namebuf, name, scope_delim - name)) = '\0';
+	    }
 
 	  if (inet_pton (AF_INET6, namebuf, at->addr) > 0)
 	    {
@@ -612,7 +595,8 @@ gaih_inet (const char *name, const struct gaih_service *service,
 		    }
 		}
 
-	      goto dupname;
+	      if (req->ai_flags & AI_CANONNAME)
+		canon = name;
 	    }
 	}
 
@@ -629,7 +613,10 @@ gaih_inet (const char *name, const struct gaih_service *service,
 
 	  /* If we do not have to look for IPv4 and IPv6 together, use
 	     the simple, old functions.  */
-	  if (req->ai_family == AF_INET || req->ai_family == AF_INET6)
+	  if (req->ai_family == AF_INET
+	      || (req->ai_family == AF_INET6
+		  && ((req->ai_flags & AI_V4MAPPED) == 0
+		      || (req->ai_flags & AI_ALL) == 0)))
 	    {
 	      int family = req->ai_family;
 	      size_t tmpbuflen = 512;
@@ -680,7 +667,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
 				    h->h_length);
 			  else
 			    {
-			      int32_t *addr = (uint32_t *) (*pat)->addr;
+			      uint32_t *addr = (uint32_t *) (*pat)->addr;
 			      addr[3] = *(uint32_t *) h->h_addr_list[i];
 			      addr[2] = htonl (0xffff);
 			      addr[1] = 0;
@@ -703,7 +690,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
 		    }
 		  /* We made requests but they turned out no data.
 		     The name is known, though.  */
-		  return (GAIH_OKIFUNSPEC | -EAI_NODATA);
+		  return GAIH_OKIFUNSPEC | -EAI_NODATA;
 		}
 
 	      goto process_list;
@@ -770,7 +757,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
 		  free (air);
 
 		  if (at->family == AF_UNSPEC)
-		    return (GAIH_OKIFUNSPEC | -EAI_NONAME);
+		    return GAIH_OKIFUNSPEC | -EAI_NONAME;
 
 		  goto process_list;
 		}
@@ -888,8 +875,8 @@ gaih_inet (const char *name, const struct gaih_service *service,
 		     AF_INET6.  Try to find a useful one for both.  */
 		  if (inet6_status == NSS_STATUS_TRYAGAIN)
 		    status = NSS_STATUS_TRYAGAIN;
-		  else if (status == NSS_STATUS_UNAVAIL &&
-			   inet6_status != NSS_STATUS_UNAVAIL)
+		  else if (status == NSS_STATUS_UNAVAIL
+			   && inet6_status != NSS_STATUS_UNAVAIL)
 		    status = inet6_status;
 		}
 
@@ -912,13 +899,13 @@ gaih_inet (const char *name, const struct gaih_service *service,
 
 	      /* We made requests but they turned out no data.  The name
 		 is known, though.  */
-	      return (GAIH_OKIFUNSPEC | -EAI_NODATA);
+	      return GAIH_OKIFUNSPEC | -EAI_NODATA;
 	    }
 	}
 
     process_list:
       if (at->family == AF_UNSPEC)
-	return (GAIH_OKIFUNSPEC | -EAI_NONAME);
+	return GAIH_OKIFUNSPEC | -EAI_NONAME;
     }
   else
     {
@@ -1039,9 +1026,9 @@ gaih_inet (const char *name, const struct gaih_service *service,
 	      }
 	  }
 
-	if (at2->family == AF_INET6)
+	family = at2->family;
+	if (family == AF_INET6)
 	  {
-	    family = AF_INET6;
 	    socklen = sizeof (struct sockaddr_in6);
 
 	    /* If we looked up IPv4 mapped address discard them here if
@@ -1053,17 +1040,17 @@ gaih_inet (const char *name, const struct gaih_service *service,
 	      goto ignore;
 	  }
 	else
-	  {
-	    family = AF_INET;
-	    socklen = sizeof (struct sockaddr_in);
-	  }
+	  socklen = sizeof (struct sockaddr_in);
 
 	for (st2 = st; st2 != NULL; st2 = st2->next)
 	  {
 	    struct addrinfo *ai;
 	    ai = *pai = malloc (sizeof (struct addrinfo) + socklen);
 	    if (ai == NULL)
-	      return -EAI_MEMORY;
+	      {
+		free ((char *) canon);
+		return -EAI_MEMORY;
+	      }
 
 	    ai->ai_flags = req->ai_flags;
 	    ai->ai_family = family;
@@ -1076,11 +1063,15 @@ gaih_inet (const char *name, const struct gaih_service *service,
 	    ai->ai_canonname = (char *) canon;
 	    canon = NULL;
 
-#if SALEN
+#ifdef _HAVE_SA_LEN
 	    ai->ai_addr->sa_len = socklen;
-#endif /* SALEN */
+#endif /* _HAVE_SA_LEN */
 	    ai->ai_addr->sa_family = family;
 
+	    /* In case of an allocation error the list must be NULL
+	       terminated.  */
+	    ai->ai_next = NULL;
+
 	    if (family == AF_INET6)
 	      {
 		struct sockaddr_in6 *sin6p =
@@ -1104,7 +1095,8 @@ gaih_inet (const char *name, const struct gaih_service *service,
 
 	    pai = &(ai->ai_next);
 	  }
-	*pai = NULL;
+
+	++*naddrs;
 
       ignore:
 	at2 = at2->next;
@@ -1113,7 +1105,8 @@ gaih_inet (const char *name, const struct gaih_service *service,
   return 0;
 }
 
-static struct gaih gaih[] =
+#if 0
+static const struct gaih gaih[] =
   {
     { PF_INET6, gaih_inet },
     { PF_INET, gaih_inet },
@@ -1122,6 +1115,7 @@ static struct gaih gaih[] =
 #endif
     { PF_UNSPEC, NULL }
   };
+#endif
 
 struct sort_result
 {
@@ -1129,6 +1123,7 @@ struct sort_result
   struct sockaddr_storage source_addr;
   uint8_t source_addr_len;
   bool got_source_addr;
+  uint8_t source_addr_flags;
 };
 
 
@@ -1162,7 +1157,7 @@ get_scope (const struct sockaddr_storage *ss)
 	 169.254/16 and 127/8 are link-local.  */
       if ((addr[0] == 169 && addr[1] == 254) || addr[0] == 127)
 	scope = 2;
-      else if (addr[0] == 10 || (addr[0] == 172 && addr[1] == 16)
+      else if (addr[0] == 10 || (addr[0] == 172 && (addr[1] & 0xf0) == 16)
 	       || (addr[0] == 192 && addr[1] == 168))
 	scope = 5;
       else
@@ -1176,59 +1171,96 @@ get_scope (const struct sockaddr_storage *ss)
 }
 
 
-/* XXX The system administrator should be able to install other
-   tables.  We need to make this configurable.  The problem is that
-   the kernel is also involved since it needs the same table.  */
-static const struct prefixlist
+struct prefixentry
 {
   struct in6_addr prefix;
   unsigned int bits;
   int val;
-} default_labels[] =
+};
+
+
+/* The label table.  */
+static const struct prefixentry *labels;
+
+/* Default labels.  */
+static const struct prefixentry default_labels[] =
   {
     /* See RFC 3484 for the details.  */
-    { { .in6_u = { .u6_addr16 = { 0x0000, 0x0000, 0x0000, 0x0000,
-				  0x0000, 0x0000, 0x0000, 0x0001 } } },
+    { { .in6_u
+	= { .u6_addr8 = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 } } },
       128, 0 },
-    { { .in6_u = { .u6_addr16 = { 0x2002, 0x0000, 0x0000, 0x0000,
-				  0x0000, 0x0000, 0x0000, 0x0000 } } },
+    { { .in6_u
+	= { .u6_addr8 = { 0x20, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
       16, 2 },
-    { { .in6_u = { .u6_addr16 = { 0x0000, 0x0000, 0x0000, 0x0000,
-				  0x0000, 0x0000, 0x0000, 0x0000 } } },
+    { { .in6_u
+	= { .u6_addr8 = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
       96, 3 },
-    { { .in6_u = { .u6_addr16 = { 0x0000, 0x0000, 0x0000, 0x0000,
-				  0x0000, 0xffff, 0x0000, 0x0000 } } },
+    { { .in6_u
+	= { .u6_addr8 = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 } } },
       96, 4 },
-    { { .in6_u = { .u6_addr16 = { 0x0000, 0x0000, 0x0000, 0x0000,
-				  0x0000, 0x0000, 0x0000, 0x0000 } } },
+    /* The next two entries differ from RFC 3484.  We need to treat
+       IPv6 site-local addresses special because they are never NATed,
+       unlike site-locale IPv4 addresses.  If this would not happen, on
+       machines which have only IPv4 and IPv6 site-local addresses, the
+       sorting would prefer the IPv6 site-local addresses, causing
+       unnecessary delays when trying to connect to a global IPv6 address
+       through a site-local IPv6 address.  */
+    { { .in6_u
+	= { .u6_addr8 = { 0xfe, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
+      10, 5 },
+    { { .in6_u
+	= { .u6_addr8 = { 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
+      7, 6 },
+    { { .in6_u
+	= { .u6_addr8 = { 0x20, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
+      32, 7 },
+    { { .in6_u
+	= { .u6_addr8 = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
       0, 1 }
   };
 
 
-static const struct prefixlist default_precedence[] =
+/* The precedence table.  */
+static const struct prefixentry *precedence;
+
+/* The default precedences.  */
+static const struct prefixentry default_precedence[] =
   {
     /* See RFC 3484 for the details.  */
-    { { .in6_u = { .u6_addr16 = { 0x0000, 0x0000, 0x0000, 0x0000,
-				  0x0000, 0x0000, 0x0000, 0x0001 } } },
+    { { .in6_u
+	= { .u6_addr8 = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 } } },
       128, 50 },
-    { { .in6_u = { .u6_addr16 = { 0x2002, 0x0000, 0x0000, 0x0000,
-				  0x0000, 0x0000, 0x0000, 0x0000 } } },
+    { { .in6_u
+	= { .u6_addr8 = { 0x20, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
       16, 30 },
-    { { .in6_u = { .u6_addr16 = { 0x0000, 0x0000, 0x0000, 0x0000,
-				  0x0000, 0x0000, 0x0000, 0x0000 } } },
+    { { .in6_u
+	= { .u6_addr8 = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
       96, 20 },
-    { { .in6_u = { .u6_addr16 = { 0x0000, 0x0000, 0x0000, 0x0000,
-				  0x0000, 0xffff, 0x0000, 0x0000 } } },
+    { { .in6_u
+	= { .u6_addr8 = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 } } },
       96, 10 },
-    { { .in6_u = { .u6_addr16 = { 0x0000, 0x0000, 0x0000, 0x0000,
-				  0x0000, 0x0000, 0x0000, 0x0000 } } },
+    { { .in6_u
+	= { .u6_addr8 = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
       0, 40 }
   };
 
 
 static int
-match_prefix (const struct sockaddr_storage *ss, const struct prefixlist *list,
-	      int default_val)
+match_prefix (const struct sockaddr_storage *ss,
+	      const struct prefixentry *list, int default_val)
 {
   int idx;
   struct sockaddr_in6 in6_mem;
@@ -1263,10 +1295,10 @@ match_prefix (const struct sockaddr_storage *ss, const struct prefixlist *list,
   for (idx = 0; ; ++idx)
     {
       unsigned int bits = list[idx].bits;
-      uint8_t *mask = list[idx].prefix.s6_addr;
-      uint8_t *val = in6->sin6_addr.s6_addr;
+      const uint8_t *mask = list[idx].prefix.s6_addr;
+      const uint8_t *val = in6->sin6_addr.s6_addr;
 
-      while (bits > 8)
+      while (bits >= 8)
 	{
 	  if (*mask != *val)
 	    break;
@@ -1292,7 +1324,7 @@ static int
 get_label (const struct sockaddr_storage *ss)
 {
   /* XXX What is a good default value?  */
-  return match_prefix (ss, default_labels, INT_MAX);
+  return match_prefix (ss, labels, INT_MAX);
 }
 
 
@@ -1300,7 +1332,20 @@ static int
 get_precedence (const struct sockaddr_storage *ss)
 {
   /* XXX What is a good default value?  */
-  return match_prefix (ss, default_precedence, 0);
+  return match_prefix (ss, precedence, 0);
+}
+
+
+/* Find last bit set in a word.  */
+static int
+fls (uint32_t a)
+{
+  uint32_t mask;
+  int n = 0;
+  for (n = 0, mask = 1 << 31; n < 32; mask >>= 1, ++n)
+    if ((a & mask) != 0)
+      break;
+  return n;
 }
 
 
@@ -1338,11 +1383,27 @@ rfc3484_sort (const void *p1, const void *p2)
     }
 
 
-  /* Rule 3: Avoid deprecated addresses.
-     That's something only the kernel could decide.  */
+  /* Rule 3: Avoid deprecated addresses.  */
+  if (a1->got_source_addr)
+    {
+      if (!(a1->source_addr_flags & in6ai_deprecated)
+	  && (a2->source_addr_flags & in6ai_deprecated))
+	return -1;
+      if ((a1->source_addr_flags & in6ai_deprecated)
+	  && !(a2->source_addr_flags & in6ai_deprecated))
+	return 1;
+    }
 
-  /* Rule 4: Prefer home addresses.
-     Another thing only the kernel can decide.  */
+  /* Rule 4: Prefer home addresses.  */
+  if (a1->got_source_addr)
+    {
+      if (!(a1->source_addr_flags & in6ai_homeaddress)
+	  && (a2->source_addr_flags & in6ai_homeaddress))
+	return 1;
+      if ((a1->source_addr_flags & in6ai_homeaddress)
+	  && !(a2->source_addr_flags & in6ai_homeaddress))
+	return -1;
+    }
 
   /* Rule 5: Prefer matching label.  */
   if (a1->got_source_addr)
@@ -1374,8 +1435,18 @@ rfc3484_sort (const void *p1, const void *p2)
     return 1;
 
 
-  /* Rule 7: Prefer native transport.
-     XXX How to recognize tunnels?  */
+  /* Rule 7: Prefer native transport.  */
+  if (a1->got_source_addr)
+    {
+      if (!(a1->source_addr_flags & in6ai_temporary)
+	  && (a2->source_addr_flags & in6ai_temporary))
+	return -1;
+      if ((a1->source_addr_flags & in6ai_temporary)
+	  && !(a2->source_addr_flags & in6ai_temporary))
+	return 1;
+
+      /* XXX Do we need to check anything beside temporary addresses?  */
+    }
 
 
   /* Rule 8: Prefer smaller scope.  */
@@ -1407,8 +1478,10 @@ rfc3484_sort (const void *p1, const void *p2)
 	  in2_dst = (struct sockaddr_in *) a2->dest_addr->ai_addr;
 	  in2_src = (struct sockaddr_in *) &a2->source_addr;
 
-	  bit1 = ffs (in1_dst->sin_addr.s_addr ^ in1_src->sin_addr.s_addr);
-	  bit2 = ffs (in2_dst->sin_addr.s_addr ^ in2_src->sin_addr.s_addr);
+	  bit1 = fls (ntohl (in1_dst->sin_addr.s_addr
+			     ^ in1_src->sin_addr.s_addr));
+	  bit2 = fls (ntohl (in2_dst->sin_addr.s_addr
+			     ^ in2_src->sin_addr.s_addr));
 	}
       else if (a1->dest_addr->ai_family == PF_INET6)
 	{
@@ -1435,10 +1508,10 @@ rfc3484_sort (const void *p1, const void *p2)
 
 	  if (i < 4)
 	    {
-	      bit1 = ffs (in1_dst->sin6_addr.s6_addr32[i]
-			  ^ in1_src->sin6_addr.s6_addr32[i]);
-	      bit2 = ffs (in2_dst->sin6_addr.s6_addr32[i]
-			  ^ in2_src->sin6_addr.s6_addr32[i]);
+	      bit1 = fls (ntohl (in1_dst->sin6_addr.s6_addr32[i]
+				 ^ in1_src->sin6_addr.s6_addr32[i]));
+	      bit2 = fls (ntohl (in2_dst->sin6_addr.s6_addr32[i]
+				 ^ in2_src->sin6_addr.s6_addr32[i]));
 	    }
 	}
 
@@ -1454,14 +1527,341 @@ rfc3484_sort (const void *p1, const void *p2)
 }
 
 
+static int
+in6aicmp (const void *p1, const void *p2)
+{
+  struct in6addrinfo *a1 = (struct in6addrinfo *) p1;
+  struct in6addrinfo *a2 = (struct in6addrinfo *) p2;
+
+  return memcmp (a1->addr, a2->addr, sizeof (a1->addr));
+}
+
+
+/* Name of the config file for RFC 3484 sorting (for now).  */
+#define GAICONF_FNAME "/etc/gai.conf"
+
+
+/* Nozero if we are supposed to reload the config file automatically
+   whenever it changed.  */
+static int gaiconf_reload_flag;
+
+/* Last modification time.  */
+static struct timespec gaiconf_mtime;
+
+
+libc_freeres_fn(fini)
+{
+  if (labels != default_labels)
+    {
+      const struct prefixentry *old = labels;
+      labels = default_labels;
+      free ((void *) old);
+    }
+
+  if (precedence != default_precedence)
+    {
+      const struct prefixentry *old = precedence;
+      precedence = default_precedence;
+      free ((void *) old);
+    }
+}
+
+
+struct prefixlist
+{
+  struct prefixentry entry;
+  struct prefixlist *next;
+};
+
+
+static void
+free_prefixlist (struct prefixlist *list)
+{
+  while (list != NULL)
+    {
+      struct prefixlist *oldp = list;
+      list = list->next;
+      free (oldp);
+    }
+}
+
+
+static int
+prefixcmp (const void *p1, const void *p2)
+{
+  const struct prefixentry *e1 = (const struct prefixentry *) p1;
+  const struct prefixentry *e2 = (const struct prefixentry *) p2;
+
+  if (e1->bits < e2->bits)
+    return 1;
+  if (e1->bits == e2->bits)
+    return 0;
+  return -1;
+}
+
+
+static void
+gaiconf_init (void)
+{
+  struct prefixlist *labellist = NULL;
+  size_t nlabellist = 0;
+  bool labellist_nullbits = false;
+  struct prefixlist *precedencelist = NULL;
+  size_t nprecedencelist = 0;
+  bool precedencelist_nullbits = false;
+
+  FILE *fp = fopen (GAICONF_FNAME, "rc");
+  if (fp != NULL)
+    {
+      struct stat64 st;
+      if (__fxstat64 (_STAT_VER, fileno (fp), &st) != 0)
+	{
+	  fclose (fp);
+	  goto no_file;
+	}
+
+      char *line = NULL;
+      size_t linelen = 0;
+
+      __fsetlocking (fp, FSETLOCKING_BYCALLER);
+
+      while (!feof_unlocked (fp))
+	{
+	  ssize_t n = __getline (&line, &linelen, fp);
+	  if (n <= 0)
+	    break;
+
+	  /* Handle comments.  No escaping possible so this is easy.  */
+	  char *cp = strchr (line, '#');
+	  if (cp != NULL)
+	    *cp = '\0';
+
+	  cp = line;
+	  while (isspace (*cp))
+	    ++cp;
+
+	  char *cmd = cp;
+	  while (*cp != '\0' && !isspace (*cp))
+	    ++cp;
+	  size_t cmdlen = cp - cmd;
+
+	  if (*cp != '\0')
+	    *cp++ = '\0';
+	  while (isspace (*cp))
+	    ++cp;
+
+	  char *val1 = cp;
+	  while (*cp != '\0' && !isspace (*cp))
+	    ++cp;
+	  size_t val1len = cp - cmd;
+
+	  /* We always need at least two values.  */
+	  if (val1len == 0)
+	    continue;
+
+	  if (*cp != '\0')
+	    *cp++ = '\0';
+	  while (isspace (*cp))
+	    ++cp;
+
+	  char *val2 = cp;
+	  while (*cp != '\0' && !isspace (*cp))
+	    ++cp;
+
+	  /*  Ignore the rest of the line.  */
+	  *cp = '\0';
+
+	  struct prefixlist **listp;
+	  size_t *lenp;
+	  bool *nullbitsp;
+	  switch (cmdlen)
+	    {
+	    case 5:
+	      if (strcmp (cmd, "label") == 0)
+		{
+		  struct in6_addr prefix;
+		  unsigned long int bits;
+		  unsigned long int val;
+		  char *endp;
+
+		  listp = &labellist;
+		  lenp = &nlabellist;
+		  nullbitsp = &labellist_nullbits;
+
+		new_elem:
+		  bits = 128;
+		  __set_errno (0);
+		  cp = strchr (val1, '/');
+		  if (cp != NULL)
+		    *cp++ = '\0';
+		  if (inet_pton (AF_INET6, val1, &prefix)
+		      && (cp == NULL
+			  || (bits = strtoul (cp, &endp, 10)) != ULONG_MAX
+			  || errno != ERANGE)
+		      && *endp == '\0'
+		      && bits <= INT_MAX
+		      && ((val = strtoul (val2, &endp, 10)) != ULONG_MAX
+			  || errno != ERANGE)
+		      && *endp == '\0'
+		      && val <= INT_MAX)
+		    {
+		      struct prefixlist *newp = malloc (sizeof (*newp));
+		      if (newp == NULL)
+			{
+			  free (line);
+			  fclose (fp);
+			  goto no_file;
+			}
+
+		      memcpy (&newp->entry.prefix, &prefix, sizeof (prefix));
+		      newp->entry.bits = bits;
+		      newp->entry.val = val;
+		      newp->next = *listp;
+		      *listp = newp;
+		      ++*lenp;
+		      *nullbitsp |= bits == 0;
+		    }
+		}
+	      break;
+
+	    case 6:
+	      if (strcmp (cmd, "reload") == 0)
+		gaiconf_reload_flag = strcmp (val1, "yes") == 0;
+	      break;
+
+	    case 10:
+	      if (strcmp (cmd, "precedence") == 0)
+		{
+		  listp = &precedencelist;
+		  lenp = &nprecedencelist;
+		  nullbitsp = &precedencelist_nullbits;
+		  goto new_elem;
+		}
+	      break;
+	    }
+	}
+
+      free (line);
+
+      fclose (fp);
+
+      /* Create the array for the labels.  */
+      struct prefixentry *new_labels;
+      if (nlabellist > 0)
+	{
+	  if (!labellist_nullbits)
+	    ++nlabellist;
+	  new_labels = malloc (nlabellist * sizeof (*new_labels));
+	  if (new_labels == NULL)
+	    goto no_file;
+
+	  int i = nlabellist;
+	  if (!labellist_nullbits)
+	    {
+	      --i;
+	      memset (&new_labels[i].prefix, '\0', sizeof (struct in6_addr));
+	      new_labels[i].bits = 0;
+	      new_labels[i].val = 1;
+	    }
+
+	  struct prefixlist *l = labellist;
+	  while (i-- > 0)
+	    {
+	      new_labels[i] = l->entry;
+	      l = l->next;
+	    }
+	  free_prefixlist (labellist);
+
+	  /* Sort the entries so that the most specific ones are at
+	     the beginning.  */
+	  qsort (new_labels, nlabellist, sizeof (*new_labels), prefixcmp);
+	}
+      else
+	new_labels = (struct prefixentry *) default_labels;
+
+      struct prefixentry *new_precedence;
+      if (nprecedencelist > 0)
+	{
+	  if (!precedencelist_nullbits)
+	    ++nprecedencelist;
+	  new_precedence = malloc (nprecedencelist * sizeof (*new_precedence));
+	  if (new_precedence == NULL)
+	    {
+	      if (new_labels != default_labels)
+		free (new_labels);
+	      goto no_file;
+	    }
+
+	  int i = nprecedencelist;
+	  if (!precedencelist_nullbits)
+	    {
+	      --i;
+	      memset (&new_precedence[i].prefix, '\0',
+		      sizeof (struct in6_addr));
+	      new_precedence[i].bits = 0;
+	      new_precedence[i].val = 40;
+	    }
+
+	  struct prefixlist *l = precedencelist;
+	  while (i-- > 0)
+	    {
+	      new_precedence[i] = l->entry;
+	      l = l->next;
+	    }
+	  free_prefixlist (precedencelist);
+
+	  /* Sort the entries so that the most specific ones are at
+	     the beginning.  */
+	  qsort (new_precedence, nprecedencelist, sizeof (*new_labels),
+		 prefixcmp);
+	}
+      else
+	new_precedence = (struct prefixentry *) default_precedence;
+
+      /* Now we are ready to replace the values.  */
+      const struct prefixentry *old = labels;
+      labels = new_labels;
+      if (old != default_labels)
+	free ((void *) old);
+
+      old = precedence;
+      precedence = new_precedence;
+      if (old != default_precedence)
+	free ((void *) old);
+
+      gaiconf_mtime = st.st_mtim;
+    }
+  else
+    {
+    no_file:
+      free_prefixlist (labellist);
+      free_prefixlist (precedencelist);
+
+      /* If we previously read the file but it is gone now, free the
+	 old data and use the builtin one.  Leave the reload flag
+	 alone.  */
+      fini ();
+    }
+}
+
+
+static void
+gaiconf_reload (void)
+{
+  struct stat64 st;
+  if (__xstat64 (_STAT_VER, GAICONF_FNAME, &st) != 0
+      || memcmp (&st.st_mtim, &gaiconf_mtime, sizeof (gaiconf_mtime)) != 0)
+    gaiconf_init ();
+}
+
+
 int
 getaddrinfo (const char *name, const char *service,
 	     const struct addrinfo *hints, struct addrinfo **pai)
 {
-  int i = 0, j = 0, last_i = 0;
+  int i = 0, last_i = 0;
   int nresults = 0;
-  struct addrinfo *p = NULL, **end;
-  struct gaih *g = gaih, *pg = NULL;
+  struct addrinfo *p = NULL;
   struct gaih_service gaih_service, *pservice;
   struct addrinfo local_hints;
 
@@ -1489,15 +1889,23 @@ getaddrinfo (const char *name, const char *service,
   if ((hints->ai_flags & AI_CANONNAME) && name == NULL)
     return EAI_BADFLAGS;
 
+  struct in6addrinfo *in6ai = NULL;
+  size_t in6ailen;
+  bool seen_ipv4 = false;
+  bool seen_ipv6 = false;
+  /* We might need information about what kind of interfaces are available.
+     But even if AI_ADDRCONFIG is not used, if the user requested IPv6
+     addresses we have to know whether an address is deprecated or
+     temporary.  */
+  if ((hints->ai_flags & AI_ADDRCONFIG) || hints->ai_family == PF_UNSPEC
+      || hints->ai_family == PF_INET6)
+    /* Determine whether we have IPv4 or IPv6 interfaces or both.  We
+       cannot cache the results since new interfaces could be added at
+       any time.  */
+    __check_pf (&seen_ipv4, &seen_ipv6, &in6ai, &in6ailen);
+
   if (hints->ai_flags & AI_ADDRCONFIG)
     {
-      /* Determine whether we have IPv4 or IPv6 interfaces or both.
-	 We cannot cache the results since new interfaces could be
-	 added at any time.  */
-      bool seen_ipv4;
-      bool seen_ipv6;
-      __check_pf (&seen_ipv4, &seen_ipv6);
-
       /* Now make a decision on what we return, if anything.  */
       if (hints->ai_family == PF_UNSPEC && (seen_ipv4 || seen_ipv6))
 	{
@@ -1512,8 +1920,11 @@ getaddrinfo (const char *name, const char *service,
 	}
       else if ((hints->ai_family == PF_INET && ! seen_ipv4)
 	       || (hints->ai_family == PF_INET6 && ! seen_ipv6))
-	/* We cannot possibly return a valid answer.  */
-	return EAI_NONAME;
+	{
+	  /* We cannot possibly return a valid answer.  */
+	  free (in6ai);
+	  return EAI_NONAME;
+	}
     }
 
   if (service && service[0])
@@ -1524,7 +1935,10 @@ getaddrinfo (const char *name, const char *service,
       if (*c != '\0')
 	{
 	  if (hints->ai_flags & AI_NUMERICSERV)
-	    return EAI_NONAME;
+	    {
+	      free (in6ai);
+	      return EAI_NONAME;
+	    }
 
 	  gaih_service.num = -1;
 	}
@@ -1534,11 +1948,21 @@ getaddrinfo (const char *name, const char *service,
   else
     pservice = NULL;
 
+  struct addrinfo **end;
   if (pai)
     end = &p;
   else
     end = NULL;
 
+  unsigned int naddrs = 0;
+#if 0
+  /* If we would support more protocols than just IPv4 and IPv6 we
+     would iterate over a table with appropriate callback functions.
+     Since we currently only handle IPv4 and IPv6 this is not
+     necessary.  */
+  const struct gaih *g = gaih;
+  const struct gaih *pg = NULL;
+  int j = 0;
   while (g->gaih)
     {
       if (hints->ai_family == g->family || hints->ai_family == AF_UNSPEC)
@@ -1547,7 +1971,7 @@ getaddrinfo (const char *name, const char *service,
 	  if (pg == NULL || pg->gaih != g->gaih)
 	    {
 	      pg = g;
-	      i = g->gaih (name, pservice, hints, end);
+	      i = g->gaih (name, pservice, hints, end, &naddrs);
 	      if (i != 0)
 		{
 		  /* EAI_NODATA is a more specific result as it says that
@@ -1562,6 +1986,7 @@ getaddrinfo (const char *name, const char *service,
 		    }
 
 		  freeaddrinfo (p);
+		  free (in6ai);
 
 		  return -(i & GAIH_EAI);
 		}
@@ -1577,16 +2002,56 @@ getaddrinfo (const char *name, const char *service,
     }
 
   if (j == 0)
-    return EAI_FAMILY;
+    {
+      free (in6ai);
+      return EAI_FAMILY;
+    }
+#else
+  if (hints->ai_family == AF_UNSPEC || hints->ai_family == AF_INET
+      || hints->ai_family == AF_INET6)
+    {
+      last_i = gaih_inet (name, pservice, hints, end, &naddrs);
+      if (last_i != 0)
+	{
+	  freeaddrinfo (p);
+	  free (in6ai);
 
-  if (nresults > 1)
+	  return -(last_i & GAIH_EAI);
+	}
+      if (end)
+	while (*end)
+	  {
+	    end = &((*end)->ai_next);
+	    ++nresults;
+	  }
+    }
+  else
+    {
+      free (in6ai);
+      return EAI_FAMILY;
+    }
+#endif
+
+  if (naddrs > 1)
     {
+      /* Read the config file.  */
+      __libc_once_define (static, once);
+      __typeof (once) old_once = once;
+      __libc_once (once, gaiconf_init);
+      if (old_once && gaiconf_reload_flag)
+	gaiconf_reload ();
+
       /* Sort results according to RFC 3484.  */
       struct sort_result results[nresults];
       struct addrinfo *q;
       struct addrinfo *last = NULL;
       char *canonname = NULL;
 
+      /* If we have information about deprecated and temporary address
+	 sort the array now.  */
+      if (in6ai != NULL)
+	qsort (in6ai, in6ailen, sizeof (*in6ai), in6aicmp);
+
       for (i = 0, q = p; q != NULL; ++i, last = q, q = q->ai_next)
 	{
 	  results[i].dest_addr = q;
@@ -1601,9 +2066,12 @@ getaddrinfo (const char *name, const char *service,
 		      results[i - 1].source_addr_len);
 	      results[i].source_addr_len = results[i - 1].source_addr_len;
 	      results[i].got_source_addr = results[i - 1].got_source_addr;
+	      results[i].source_addr_flags = results[i - 1].source_addr_flags;
 	    }
 	  else
 	    {
+	      results[i].source_addr_flags = 0;
+
 	      /* We overwrite the type with SOCK_DGRAM since we do not
 		 want connect() to connect to the other side.  If we
 		 cannot determine the source address remember this
@@ -1618,6 +2086,20 @@ getaddrinfo (const char *name, const char *service,
 		{
 		  results[i].source_addr_len = sl;
 		  results[i].got_source_addr = true;
+
+		  if (q->ai_family == PF_INET6 && in6ai != NULL)
+		    {
+		      /* See whether the address is the list of deprecated
+			 or temporary addresses.  */
+		      struct in6addrinfo tmp;
+		      memcpy (tmp.addr, q->ai_addr, IN6ADDRSZ);
+
+		      struct in6addrinfo *found
+			= bsearch (&tmp, in6ai, in6ailen, sizeof (*in6ai),
+				   in6aicmp);
+		      if (found != NULL)
+			results[i].source_addr_flags = found->flags;
+		    }
 		}
 	      else
 		/* Just make sure that if we have to process the same
@@ -1651,6 +2133,8 @@ getaddrinfo (const char *name, const char *service,
       p->ai_canonname = canonname;
     }
 
+  free (in6ai);
+
   if (p)
     {
       *pai = p;
diff --git a/sysdeps/posix/gettimeofday.c b/sysdeps/posix/gettimeofday.c
index 28f75b0bcc..bda40f48ec 100644
--- a/sysdeps/posix/gettimeofday.c
+++ b/sysdeps/posix/gettimeofday.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 92, 94, 95, 96, 97, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1992,1994-1997,2002,2005 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
@@ -20,12 +20,6 @@
 #include <time.h>
 #include <sys/time.h>
 
-#ifndef HAVE_GNU_LD
-#define __daylight	daylight
-#define __timezone	timezone
-#define __tzname	tzname
-#endif
-
 #undef __gettimeofday
 
 /* Get the current time of day and timezone information,
diff --git a/sysdeps/posix/libc_fatal.c b/sysdeps/posix/libc_fatal.c
index 9dfac68006..c611b84363 100644
--- a/sysdeps/posix/libc_fatal.c
+++ b/sysdeps/posix/libc_fatal.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1993,1994,1995,1997,2000,2004 Free Software Foundation, Inc.
+/* Copyright (C) 1993,1994,1995,1997,2000,2004,2005
+	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
@@ -73,7 +74,7 @@ __libc_message (int do_abort, const char *fmt, ...)
   while (*cp != '\0')
     {
       /* Find the next "%s" or the end of the string.  */
-      char *next = cp;
+      const char *next = cp;
       while (next[0] != '%' || next[1] != 's')
 	{
 	  next = __strchrnul (next + 1, '%');
@@ -114,7 +115,7 @@ __libc_message (int do_abort, const char *fmt, ...)
 
       for (int cnt = nlist - 1; cnt >= 0; --cnt)
 	{
-	  iov[cnt].iov_base = list->str;
+	  iov[cnt].iov_base = (char *) list->str;
 	  iov[cnt].iov_len = list->len;
 	  total += list->len;
 	  list = list->next;
diff --git a/sysdeps/posix/pause.c b/sysdeps/posix/pause.c
index 8639e684f4..538c186ec0 100644
--- a/sysdeps/posix/pause.c
+++ b/sysdeps/posix/pause.c
@@ -1,5 +1,5 @@
 /* pause -- suspend the process until a signal arrives.  POSIX.1 version.
-   Copyright (C) 2003 Free Software Foundation, Inc.
+   Copyright (C) 2003, 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
@@ -23,6 +23,7 @@
 
 /* Suspend the process until a signal arrives.
    This always returns -1 and sets errno to EINTR.  */
+
 int
 __libc_pause (void)
 {
@@ -39,3 +40,18 @@ __libc_pause (void)
 weak_alias (__libc_pause, pause)
 
 LIBC_CANCEL_HANDLED ();		/* sigsuspend handles our cancellation.  */
+
+#ifndef NO_CANCELLATION
+# include <not-cancel.h>
+
+int
+__pause_nocancel (void)
+{
+  sigset_t set;
+
+  __sigemptyset (&set);
+  __sigprocmask (SIG_BLOCK, NULL, &set);
+
+  return sigsuspend_not_cancel (&set);
+}
+#endif
diff --git a/sysdeps/posix/posix_fallocate.c b/sysdeps/posix/posix_fallocate.c
index 838e7a004a..cbaeb49487 100644
--- a/sysdeps/posix/posix_fallocate.c
+++ b/sysdeps/posix/posix_fallocate.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2003, 2005 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
@@ -29,9 +29,8 @@ posix_fallocate (int fd, __off_t offset, __off_t len)
 {
   struct stat64 st;
   struct statfs f;
-  size_t step;
 
-  /* `off_tī is a signed type.  Therefore we can determine whether
+  /* `off_t' is a signed type.  Therefore we can determine whether
      OFFSET + LEN is too large if it is a negative value.  */
   if (offset < 0 || len < 0)
     return EINVAL;
@@ -47,24 +46,48 @@ posix_fallocate (int fd, __off_t offset, __off_t len)
   if (! S_ISREG (st.st_mode))
     return ENODEV;
 
+  if (len == 0)
+    {
+      if (st.st_size < offset)
+	{
+	  int ret = __ftruncate (fd, offset);
+
+	  if (ret != 0)
+	    ret = errno;
+	  return ret;
+	}
+      return 0;
+    }
+
   /* We have to know the block size of the filesystem to get at least some
      sort of performance.  */
   if (__fstatfs (fd, &f) != 0)
     return errno;
 
-  /* Align OFFSET to block size and adjust LEN.  */
-  step = (offset + f.f_bsize - 1) % ~f.f_bsize;
-  offset += step;
+  /* Try to play safe.  */
+  if (f.f_bsize == 0)
+    f.f_bsize = 512;
 
   /* Write something to every block.  */
-  while (len > step)
+  for (offset += (len - 1) % f.f_bsize; len > 0; offset += f.f_bsize)
     {
-      len -= step;
+      len -= f.f_bsize;
+
+      if (offset < st.st_size)
+	{
+	  unsigned char c;
+	  ssize_t rsize = __pread (fd, &c, 1, offset);
+
+	  if (rsize < 0)
+	    return errno;
+	  /* If there is a non-zero byte, the block must have been
+	     allocated already.  */
+	  else if (rsize == 1 && c != 0)
+	    continue;
+	}
 
       if (__pwrite (fd, "", 1, offset) != 1)
 	return errno;
-
-      offset += step;
     }
 
   return 0;
diff --git a/sysdeps/posix/posix_fallocate64.c b/sysdeps/posix/posix_fallocate64.c
index 0eba4161a5..64ca9ae83d 100644
--- a/sysdeps/posix/posix_fallocate64.c
+++ b/sysdeps/posix/posix_fallocate64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2003, 2004, 2005 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
@@ -29,9 +29,8 @@ __posix_fallocate64_l64 (int fd, __off64_t offset, __off64_t len)
 {
   struct stat64 st;
   struct statfs64 f;
-  size_t step;
 
-  /* `off64_tī is a signed type.  Therefore we can determine whether
+  /* `off64_t' is a signed type.  Therefore we can determine whether
      OFFSET + LEN is too large if it is a negative value.  */
   if (offset < 0 || len < 0)
     return EINVAL;
@@ -47,24 +46,48 @@ __posix_fallocate64_l64 (int fd, __off64_t offset, __off64_t len)
   if (! S_ISREG (st.st_mode))
     return ENODEV;
 
+  if (len == 0)
+    {
+      if (st.st_size < offset)
+	{
+	  int ret = __ftruncate64 (fd, offset);
+
+	  if (ret != 0)
+	    ret = errno;
+	  return ret;
+	}
+      return 0;
+    }
+
   /* We have to know the block size of the filesystem to get at least some
      sort of performance.  */
   if (__fstatfs64 (fd, &f) != 0)
     return errno;
 
-  /* Align OFFSET to block size and adjust LEN.  */
-  step = (offset + f.f_bsize - 1) % ~f.f_bsize;
-  offset += step;
+  /* Try to play safe.  */
+  if (f.f_bsize == 0)
+    f.f_bsize = 512;
 
   /* Write something to every block.  */
-  while (len > step)
+  for (offset += (len - 1) % f.f_bsize; len > 0; offset += f.f_bsize)
     {
-      len -= step;
-
-      if (__pwrite64 (fd, "", 1, offset) != 1)
+      len -= f.f_bsize;
+
+      if (offset < st.st_size)
+	{
+	  unsigned char c;
+	  ssize_t rsize = __libc_pread64 (fd, &c, 1, offset);
+
+	  if (rsize < 0)
+	    return errno;
+	  /* If there is a non-zero byte, the block must have been
+	     allocated already.  */
+	  else if (rsize == 1 && c != 0)
+	    continue;
+	}
+
+      if (__libc_pwrite64 (fd, "", 1, offset) != 1)
 	return errno;
-
-      offset += step;
     }
 
   return 0;
diff --git a/sysdeps/posix/profil.c b/sysdeps/posix/profil.c
index 3c2e1dfa07..281b53bf6a 100644
--- a/sysdeps/posix/profil.c
+++ b/sysdeps/posix/profil.c
@@ -1,5 +1,6 @@
 /* Low-level statistical profiling support function.  Mostly POSIX.1 version.
-   Copyright (C) 1996,97,98,2002, 2004 Free Software Foundation, Inc.
+   Copyright (C) 1996,1997,1998,2002,2004,2005,2006
+	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
@@ -22,10 +23,11 @@
 #include <errno.h>
 #include <signal.h>
 #include <sys/time.h>
+#include <libc-internal.h>
 
 #ifndef SIGPROF
 
-#include <sysdeps/generic/profil.c>
+#include <gmon/profil.c>
 
 #else
 
@@ -110,7 +112,7 @@ __profil (u_short *sample_buffer, size_t size, size_t offset, u_int scale)
     return -1;
 
   timer.it_value.tv_sec = 0;
-  timer.it_value.tv_usec = 1;
+  timer.it_value.tv_usec = 1000000 / __profile_frequency ();
   timer.it_interval = timer.it_value;
   return __setitimer (ITIMER_PROF, &timer, otimer_ptr);
 }
diff --git a/sysdeps/posix/shm_open.c b/sysdeps/posix/shm_open.c
index b773d40db0..0a657fadfa 100644
--- a/sysdeps/posix/shm_open.c
+++ b/sysdeps/posix/shm_open.c
@@ -1,5 +1,5 @@
 /* shm_open -- open a POSIX shared memory object.  Generic POSIX file version.
-   Copyright (C) 2001,02 Free Software Foundation, Inc.
+   Copyright (C) 2001,2002,2005 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
@@ -20,7 +20,7 @@
 #include <unistd.h>
 
 #if ! _POSIX_MAPPED_FILES
-#include <sysdeps/generic/shm_open.c>
+#include <rt/shm_open.c>
 
 #else
 
diff --git a/sysdeps/posix/shm_unlink.c b/sysdeps/posix/shm_unlink.c
index b67240f838..18ca416e16 100644
--- a/sysdeps/posix/shm_unlink.c
+++ b/sysdeps/posix/shm_unlink.c
@@ -1,5 +1,5 @@
 /* shm_unlink -- remove a POSIX shared memory object.  Generic POSIX version.
-   Copyright (C) 2001,02 Free Software Foundation, Inc.
+   Copyright (C) 2001,2002,2005 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
@@ -20,7 +20,7 @@
 #include <unistd.h>
 
 #if ! _POSIX_MAPPED_FILES
-#include <sysdeps/generic/shm_unlink.c>
+#include <rt/shm_unlink.c>
 
 #else
 
diff --git a/sysdeps/posix/sigignore.c b/sysdeps/posix/sigignore.c
index 361a19e0dc..9787e8d234 100644
--- a/sysdeps/posix/sigignore.c
+++ b/sysdeps/posix/sigignore.c
@@ -1,5 +1,5 @@
 /* Set the disposition of SIG to SIG_IGN.
-   Copyright (C) 1998 Free Software Foundation, Inc.
+   Copyright (C) 1998, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
@@ -22,6 +22,8 @@
 #define __need_NULL
 #include <stddef.h>
 #include <signal.h>
+#include <string.h>	/* For the real memset prototype.  */
+
 
 int
 sigignore (sig)
diff --git a/sysdeps/posix/signal.c b/sysdeps/posix/signal.c
index 9a8efee043..9fc514c729 100644
--- a/sysdeps/posix/signal.c
+++ b/sysdeps/posix/signal.c
@@ -1,5 +1,6 @@
 /* BSD-like signal function.
-   Copyright (C) 1991,1992,1996,1997,2000,2002 Free Software Foundation, Inc.
+   Copyright (C) 1991,1992,1996,1997,2000,2002,2005
+   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
@@ -19,6 +20,7 @@
 
 #include <errno.h>
 #include <signal.h>
+#include <string.h>	/* For the real memset prototype.  */
 
 
 sigset_t _sigintr attribute_hidden;		/* Set by siginterrupt.  */
diff --git a/sysdeps/posix/sigset.c b/sysdeps/posix/sigset.c
index 873c1cb1e6..8f96e3d610 100644
--- a/sysdeps/posix/sigset.c
+++ b/sysdeps/posix/sigset.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000, 2005, 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
@@ -20,6 +20,7 @@
 #define __need_NULL
 #include <stddef.h>
 #include <signal.h>
+#include <string.h>	/* For the real memset prototype.  */
 
 
 /* Set the disposition for SIG.  */
@@ -28,8 +29,10 @@ sigset (sig, disp)
      int sig;
      __sighandler_t disp;
 {
-  struct sigaction act, oact;
+  struct sigaction act;
+  struct sigaction oact;
   sigset_t set;
+  sigset_t oset;
 
 #ifdef SIG_HOLD
   /* Handle SIG_HOLD first.  */
@@ -44,10 +47,18 @@ sigset (sig, disp)
 	return SIG_ERR;
 
       /* Add the signal set to the current signal mask.  */
-      if (__sigprocmask (SIG_BLOCK, &set, NULL) < 0)
+      if (__sigprocmask (SIG_BLOCK, &set, &oset) < 0)
 	return SIG_ERR;
 
-      return SIG_HOLD;
+      /* If the signal was already blocked signal this to the caller.  */
+      if (__sigismember (&oset, sig))
+	return SIG_HOLD;
+
+      /* We need to determine whether a specific handler is installed.  */
+      if (__sigaction (sig, NULL, &oact) < 0)
+	return SIG_ERR;
+
+      return oact.sa_handler;
     }
 #endif	/* SIG_HOLD */
 
@@ -74,8 +85,9 @@ sigset (sig, disp)
     return SIG_ERR;
 
   /* Remove the signal set from the current signal mask.  */
-  if (__sigprocmask (SIG_UNBLOCK, &set, NULL) < 0)
+  if (__sigprocmask (SIG_UNBLOCK, &set, &oset) < 0)
     return SIG_ERR;
 
-  return oact.sa_handler;
+  /* If the signal was already blocked return SIG_HOLD.  */
+  return __sigismember (&oset, sig) ? SIG_HOLD : oact.sa_handler;
 }
diff --git a/sysdeps/posix/spawni.c b/sysdeps/posix/spawni.c
index 69106c480e..29803a8461 100644
--- a/sysdeps/posix/spawni.c
+++ b/sysdeps/posix/spawni.c
@@ -1,5 +1,5 @@
 /* Guts of POSIX spawn interface.  Generic POSIX.1 version.
-   Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2000-2005, 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
@@ -26,6 +26,7 @@
 #include <unistd.h>
 #include "spawn_int.h"
 #include <not-cancel.h>
+#include <local-setxid.h>
 
 
 /* The Unix standard contains a long explanation of the way to signal
@@ -81,7 +82,15 @@ __spawni (pid_t *pid, const char *file,
   short int flags = attrp == NULL ? 0 : attrp->__flags;
 
   /* Generate the new process.  */
-  if (flags & POSIX_SPAWN_USEVFORK)
+  if ((flags & POSIX_SPAWN_USEVFORK) != 0
+      /* If no major work is done, allow using vfork.  Note that we
+	 might perform the path searching.  But this would be done by
+	 a call to execvp(), too, and such a call must be OK according
+	 to POSIX.  */
+      || ((flags & (POSIX_SPAWN_SETSIGMASK | POSIX_SPAWN_SETSIGDEF
+		    | POSIX_SPAWN_SETSCHEDPARAM | POSIX_SPAWN_SETSCHEDULER
+		    | POSIX_SPAWN_SETPGROUP | POSIX_SPAWN_RESETIDS)) == 0
+	  && file_actions == NULL))
     new_pid = __vfork ();
   else
     new_pid = __fork ();
@@ -147,7 +156,8 @@ __spawni (pid_t *pid, const char *file,
 
   /* Set the effective user and group IDs.  */
   if ((flags & POSIX_SPAWN_RESETIDS) != 0
-      && (seteuid (__getuid ()) != 0 || setegid (__getgid ()) != 0))
+      && (local_seteuid (__getuid ()) != 0
+	  || local_setegid (__getgid ()) != 0))
     _exit (SPAWN_ERROR);
 
   /* Execute the file actions.  */
@@ -169,9 +179,10 @@ __spawni (pid_t *pid, const char *file,
 
 	    case spawn_do_open:
 	      {
-		int new_fd = __open64 (action->action.open_action.path,
-				       action->action.open_action.oflag,
-				       action->action.open_action.mode);
+		int new_fd = open_not_cancel (action->action.open_action.path,
+					      action->action.open_action.oflag
+					      | O_LARGEFILE,
+					      action->action.open_action.mode);
 
 		if (new_fd == -1)
 		  /* The `open' call failed.  */
@@ -185,7 +196,7 @@ __spawni (pid_t *pid, const char *file,
 		      /* The `dup2' call failed.  */
 		      _exit (SPAWN_ERROR);
 
-		    if (__close (new_fd) != 0)
+		    if (close_not_cancel (new_fd) != 0)
 		      /* The `close' call failed.  */
 		      _exit (SPAWN_ERROR);
 		  }
diff --git a/sysdeps/posix/sprofil.c b/sysdeps/posix/sprofil.c
index 19787fa364..853038d078 100644
--- a/sysdeps/posix/sprofil.c
+++ b/sysdeps/posix/sprofil.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
    Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
    This file is part of the GNU C Library.
 
@@ -27,7 +27,7 @@
 #include <sys/profil.h>
 
 #ifndef SIGPROF
-# include <sysdeps/generic/sprofil.c>
+# include <gmon/sprofil.c>
 #else
 
 #include <libc-internal.h>
@@ -181,14 +181,14 @@ profil_count_uint (void *pcp)
    interrupted code.  */
 #define profil_counter		profil_counter_ushort
 #define profil_count(pc)	profil_count (pc, 0)
-#include "profil-counter.h"
+#include <profil-counter.h>
 
 #undef profil_counter
 #undef profil_count
 
 #define profil_counter		profil_counter_uint
 #define profil_count(pc)	profil_count (pc, 1)
-#include "profil-counter.h"
+#include <profil-counter.h>
 
 static int
 insert (int i, unsigned long int start, unsigned long int end, struct prof *p,
diff --git a/sysdeps/posix/sysconf.c b/sysdeps/posix/sysconf.c
index de72e84829..0c0d7d1418 100644
--- a/sysdeps/posix/sysconf.c
+++ b/sysdeps/posix/sysconf.c
@@ -1,5 +1,5 @@
-/* Copyright (C) 1991,1993,1995-1997,1999-2003,2004
-   Free Software Foundation, Inc.
+/* Copyright (C) 1991,1993,1995-1997,1999-2003,2004,2006
+	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
@@ -68,7 +68,7 @@ __sysconf (name)
 #ifdef	CHILD_MAX
       return CHILD_MAX;
 #else
-      return -1;
+      return __get_child_max ();
 #endif
 
     case _SC_CLK_TCK:
@@ -95,112 +95,112 @@ __sysconf (name)
       return MAX (__tzname_max (), _POSIX_TZNAME_MAX);
 
     case _SC_JOB_CONTROL:
-#ifdef	_POSIX_JOB_CONTROL
-      return 1;
+#if _POSIX_JOB_CONTROL > 0
+      return _POSIX_JOB_CONTROL;
 #else
       return -1;
 #endif
 
     case _SC_SAVED_IDS:
-#ifdef	_POSIX_SAVED_IDS
+#if _POSIX_SAVED_IDS > 0
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_REALTIME_SIGNALS:
-#ifdef	_POSIX_REALTIME_SIGNALS
+#if _POSIX_REALTIME_SIGNALS > 0
       return _POSIX_REALTIME_SIGNALS;
 #else
       return -1;
 #endif
 
     case _SC_PRIORITY_SCHEDULING:
-#ifdef	_POSIX_PRIORITY_SCHEDULING
+#if _POSIX_PRIORITY_SCHEDULING > 0
       return _POSIX_PRIORITY_SCHEDULING;
 #else
       return -1;
 #endif
 
     case _SC_TIMERS:
-#ifdef	_POSIX_TIMERS
+#if _POSIX_TIMERS > 0
       return _POSIX_TIMERS;
 #else
       return -1;
 #endif
 
     case _SC_ASYNCHRONOUS_IO:
-#ifdef	_POSIX_ASYNCHRONOUS_IO
+#if _POSIX_ASYNCHRONOUS_IO > 0
       return _POSIX_ASYNCHRONOUS_IO;
 #else
       return -1;
 #endif
 
     case _SC_PRIORITIZED_IO:
-#ifdef	_POSIX_PRIORITIZED_IO
+#if _POSIX_PRIORITIZED_IO > 0
       return _POSIX_PRIORITIZED_IO;
 #else
       return -1;
 #endif
 
     case _SC_SYNCHRONIZED_IO:
-#ifdef	_POSIX_SYNCHRONIZED_IO
+#if _POSIX_SYNCHRONIZED_IO > 0
       return _POSIX_SYNCHRONIZED_IO;
 #else
       return -1;
 #endif
 
     case _SC_FSYNC:
-#ifdef	_POSIX_FSYNC
+#if _POSIX_FSYNC > 0
       return _POSIX_FSYNC;
 #else
       return -1;
 #endif
 
     case _SC_MAPPED_FILES:
-#ifdef	_POSIX_MAPPED_FILES
+#if _POSIX_MAPPED_FILES > 0
       return _POSIX_MAPPED_FILES;
 #else
       return -1;
 #endif
 
     case _SC_MEMLOCK:
-#ifdef	_POSIX_MEMLOCK
+#if _POSIX_MEMLOCK > 0
       return _POSIX_MEMLOCK;
 #else
       return -1;
 #endif
 
     case _SC_MEMLOCK_RANGE:
-#ifdef	_POSIX_MEMLOCK_RANGE
+#if _POSIX_MEMLOCK_RANGE > 0
       return _POSIX_MEMLOCK_RANGE;
 #else
       return -1;
 #endif
 
     case _SC_MEMORY_PROTECTION:
-#ifdef	_POSIX_MEMORY_PROTECTION
+#if _POSIX_MEMORY_PROTECTION > 0
       return _POSIX_MEMORY_PROTECTION;
 #else
       return -1;
 #endif
 
     case _SC_MESSAGE_PASSING:
-#ifdef	_POSIX_MESSAGE_PASSING
+#if _POSIX_MESSAGE_PASSING > 0
       return _POSIX_MESSAGE_PASSING;
 #else
       return -1;
 #endif
 
     case _SC_SEMAPHORES:
-#ifdef	_POSIX_SEMAPHORES
+#if _POSIX_SEMAPHORES > 0
       return _POSIX_SEMAPHORES;
 #else
       return -1;
 #endif
 
     case _SC_SHARED_MEMORY_OBJECTS:
-#ifdef	_POSIX_SHARED_MEMORY_OBJECTS
+#if _POSIX_SHARED_MEMORY_OBJECTS > 0
       return _POSIX_SHARED_MEMORY_OBJECTS;
 #else
       return -1;
@@ -353,49 +353,49 @@ __sysconf (name)
 #endif
 
     case _SC_PII:
-#ifdef	_POSIX_PII
+#if _POSIX_PII > 0
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_XTI:
-#ifdef	_POSIX_PII_XTI
+#if _POSIX_PII_XTI > 0
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_SOCKET:
-#ifdef	_POSIX_PII_SOCKET
+#if _POSIX_PII_SOCKET > 0
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_INTERNET:
-#ifdef	_POSIX_PII_INTERNET
+#if _POSIX_PII_INTERNET > 0
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_OSI:
-#ifdef	_POSIX_PII_OSI
+#if _POSIX_PII_OSI > 0
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_POLL:
-#ifdef	_POSIX_POLL
+#if _POSIX_POLL > 0
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_SELECT:
-#ifdef	_POSIX_SELECT
+#if _POSIX_SELECT > 0
       return 1;
 #else
       return -1;
@@ -410,35 +410,35 @@ __sysconf (name)
 #endif
 
     case _SC_PII_INTERNET_STREAM:
-#ifdef	_POSIX_PII_INTERNET_STREAM
+#if _POSIX_PII_INTERNET_STREAM > 0
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_INTERNET_DGRAM:
-#ifdef	_POSIX_PII_INTERNET_DGRAM
+#if _POSIX_PII_INTERNET_DGRAM > 0
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_OSI_COTS:
-#ifdef	_POSIX_PII_OSI_COTS
+#if _POSIX_PII_OSI_COTS > 0
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_OSI_CLTS:
-#ifdef	_POSIX_PII_OSI_CLTS
+#if _POSIX_PII_OSI_CLTS > 0
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_OSI_M:
-#ifdef	_POSIX_PII_OSI_M
+#if _POSIX_PII_OSI_M > 0
       return 1;
 #else
       return -1;
@@ -519,14 +519,14 @@ __sysconf (name)
 
       /* POSIX 1003.1c (POSIX Threads).  */
     case _SC_THREADS:
-#ifdef	_POSIX_THREADS
+#if _POSIX_THREADS > 0
       return _POSIX_THREADS;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_SAFE_FUNCTIONS:
-#ifdef	_POSIX_THREAD_SAFE_FUNCTIONS
+#if _POSIX_THREAD_SAFE_FUNCTIONS > 0
       return _POSIX_THREAD_SAFE_FUNCTIONS;
 #else
       return -1;
@@ -553,7 +553,7 @@ __sysconf (name)
 #endif
 
     case _SC_THREAD_DESTRUCTOR_ITERATIONS:
-#ifdef	_POSIX_THREAD_DESTRUCTOR_ITERATIONS
+#if _POSIX_THREAD_DESTRUCTOR_ITERATIONS > 0
       return _POSIX_THREAD_DESTRUCTOR_ITERATIONS;
 #else
       return -1;
@@ -581,42 +581,42 @@ __sysconf (name)
 #endif
 
     case _SC_THREAD_ATTR_STACKADDR:
-#ifdef	_POSIX_THREAD_ATTR_STACKADDR
+#if _POSIX_THREAD_ATTR_STACKADDR > 0
       return _POSIX_THREAD_ATTR_STACKADDR;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_ATTR_STACKSIZE:
-#ifdef	_POSIX_THREAD_ATTR_STACKSIZE
+#if _POSIX_THREAD_ATTR_STACKSIZE > 0
       return _POSIX_THREAD_ATTR_STACKSIZE;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_PRIORITY_SCHEDULING:
-#ifdef	_POSIX_THREAD_PRIORITY_SCHEDULING
+#if _POSIX_THREAD_PRIORITY_SCHEDULING > 0
       return _POSIX_THREAD_PRIORITY_SCHEDULING;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_PRIO_INHERIT:
-#ifdef	_POSIX_THREAD_PRIO_INHERIT
+#if _POSIX_THREAD_PRIO_INHERIT > 0
       return _POSIX_THREAD_PRIO_INHERIT;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_PRIO_PROTECT:
-#ifdef	_POSIX_THREAD_PRIO_PROTECT
+#if _POSIX_THREAD_PRIO_PROTECT > 0
       return _POSIX_THREAD_PRIO_PROTECT;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_PROCESS_SHARED:
-#ifdef	_POSIX_THREAD_PROCESS_SHARED
+#if _POSIX_THREAD_PROCESS_SHARED > 0
       return _POSIX_THREAD_PROCESS_SHARED;
 #else
       return -1;
@@ -857,40 +857,40 @@ __sysconf (name)
 #endif
 
     case _SC_ADVISORY_INFO:
-#ifdef _POSIX_ADVISORY_INFO
+#if _POSIX_ADVISORY_INFO > 0
       return _POSIX_ADVISORY_INFO;
 #else
       return -1;
 #endif
 
     case _SC_BARRIERS:
-#ifdef _POSIX_BARRIERS
+#if _POSIX_BARRIERS > 0
       return _POSIX_BARRIERS;
 #else
       return -1;
 #endif
 
     case _SC_BASE:
-#ifdef _POSIX_BASE
+#if _POSIX_BASE > 0
       return _POSIX_BASE;
 #else
       return -1;
 #endif
     case _SC_C_LANG_SUPPORT:
-#ifdef _POSIX_C_LANG_SUPPORT
+#if _POSIX_C_LANG_SUPPORT > 0
       return _POSIX_C_LANG_SUPPORT;
 #else
       return -1;
 #endif
     case _SC_C_LANG_SUPPORT_R:
-#ifdef _POSIX_C_LANG_SUPPORT_R
+#if _POSIX_C_LANG_SUPPORT_R > 0
       return _POSIX_C_LANG_SUPPORT_R;
 #else
       return -1;
 #endif
 
     case _SC_CLOCK_SELECTION:
-#ifdef _POSIX_CLOCK_SELECTION
+#if _POSIX_CLOCK_SELECTION > 0
       return _POSIX_CLOCK_SELECTION;
 #else
       return -1;
@@ -904,58 +904,58 @@ __sysconf (name)
 #endif
 
     case _SC_DEVICE_IO:
-#ifdef _POSIX_DEVICE_IO
+#if _POSIX_DEVICE_IO > 0
       return _POSIX_DEVICE_IO;
 #else
       return -1;
 #endif
     case _SC_DEVICE_SPECIFIC:
-#ifdef _POSIX_DEVICE_SPCIFIC
+#if _POSIX_DEVICE_SPCIFIC > 0
       return _POSIX_DEVICE_SPECIFIC;
 #else
       return -1;
 #endif
     case _SC_DEVICE_SPECIFIC_R:
-#ifdef _POSIX_DEVICE_SPCIFIC_R
+#if _POSIX_DEVICE_SPCIFIC_R > 0
       return _POSIX_DEVICE_SPECIFIC_R;
 #else
       return -1;
 #endif
 
     case _SC_FD_MGMT:
-#ifdef _POSIX_FD_MGMT
+#if _POSIX_FD_MGMT > 0
       return _POSIX_FD_MGMT;
 #else
       return -1;
 #endif
 
     case _SC_FIFO:
-#ifdef _POSIX_FIFO
+#if _POSIX_FIFO > 0
       return _POSIX_FIFO;
 #else
       return -1;
 #endif
     case _SC_PIPE:
-#ifdef _POSIX_PIPE
+#if _POSIX_PIPE > 0
       return _POSIX_PIPE;
 #else
       return -1;
 #endif
 
     case _SC_FILE_ATTRIBUTES:
-#ifdef _POSIX_FILE_ATTRIBUTES
+#if _POSIX_FILE_ATTRIBUTES > 0
       return _POSIX_FILE_ATTRIBUTES;
 #else
       return -1;
 #endif
     case _SC_FILE_LOCKING:
-#ifdef _POSIX_FILE_LOCKING
+#if _POSIX_FILE_LOCKING > 0
       return _POSIX_FILE_LOCKING;
 #else
       return -1;
 #endif
     case _SC_FILE_SYSTEM:
-#ifdef _POSIX_FILE_SYSTEM
+#if _POSIX_FILE_SYSTEM > 0
       return _POSIX_FILE_SYSTEM;
 #else
       return -1;
@@ -969,53 +969,53 @@ __sysconf (name)
 #endif
 
     case _SC_MULTI_PROCESS:
-#ifdef _POSIX_MULTI_PROCESS
+#if _POSIX_MULTI_PROCESS > 0
       return _POSIX_MULTI_PROCESS;
 #else
       return -1;
 #endif
     case _SC_SINGLE_PROCESS:
-#ifdef _POSIX_SINGLE_PROCESS
+#if _POSIX_SINGLE_PROCESS > 0
       return _POSIX_SINGLE_PROCESS;
 #else
       return -1;
 #endif
 
     case _SC_NETWORKING:
-#ifdef _POSIX_NETWORKING
+#if _POSIX_NETWORKING > 0
       return _POSIX_NETWORKING;
 #else
       return -1;
 #endif
 
     case _SC_READER_WRITER_LOCKS:
-#ifdef _POSIX_READER_WRITER_LOCKS
+#if _POSIX_READER_WRITER_LOCKS > 0
       return _POSIX_READER_WRITER_LOCKS;
 #else
       return -1;
 #endif
     case _SC_SPIN_LOCKS:
-#ifdef _POSIX_SPIN_LOCKS
+#if _POSIX_SPIN_LOCKS > 0
       return _POSIX_SPIN_LOCKS;
 #else
       return -1;
 #endif
 
     case _SC_REGEXP:
-#ifdef _POSIX_REGEXP
+#if _POSIX_REGEXP > 0
       return _POSIX_REGEXP;
 #else
       return -1;
 #endif
     case _SC_REGEX_VERSION:
-#ifdef _POSIX_REGEX_VERSION
+#if _POSIX_REGEX_VERSION > 0
       return _POSIX_REGEX_VERSION;
 #else
       return -1;
 #endif
 
     case _SC_SHELL:
-#ifdef _POSIX_SHELL
+#if _POSIX_SHELL > 0
       return _POSIX_SHELL;
 #else
       return -1;
@@ -1029,33 +1029,33 @@ __sysconf (name)
 #endif
 
     case _SC_SPAWN:
-#ifdef _POSIX_SPAWN
+#if _POSIX_SPAWN > 0
       return _POSIX_SPAWN;
 #else
       return -1;
 #endif
 
     case _SC_SPORADIC_SERVER:
-#ifdef _POSIX_SPORADIC_SERVER
+#if _POSIX_SPORADIC_SERVER > 0
       return _POSIX_SPORADIC_SERVER;
 #else
       return -1;
 #endif
     case _SC_THREAD_SPORADIC_SERVER:
-#ifdef _POSIX_THREAD_SPORADIC_SERVER
+#if _POSIX_THREAD_SPORADIC_SERVER > 0
       return _POSIX_THREAD_SPORADIC_SERVER;
 #else
       return -1;
 #endif
 
     case _SC_SYSTEM_DATABASE:
-#ifdef _POSIX_SYSTEM_DATABASE
+#if _POSIX_SYSTEM_DATABASE > 0
       return _POSIX_SYSTEM_DATABASE;
 #else
       return -1;
 #endif
     case _SC_SYSTEM_DATABASE_R:
-#ifdef _POSIX_SYSTEM_DATABASE_R
+#if _POSIX_SYSTEM_DATABASE_R > 0
       return _POSIX_SYSTEM_DATABASE_R;
 #else
       return -1;
@@ -1069,27 +1069,27 @@ __sysconf (name)
 #endif
 
     case _SC_TIMEOUTS:
-#ifdef _POSIX_TIMEOUTS
+#if _POSIX_TIMEOUTS > 0
       return _POSIX_TIMEOUTS;
 #else
       return -1;
 #endif
 
     case _SC_TYPED_MEMORY_OBJECTS:
-#ifdef _POSIX_TYPED_MEMORY_OBJECTS
+#if _POSIX_TYPED_MEMORY_OBJECTS > 0
       return _POSIX_TYPED_MEMORY_OBJECTS;
 #else
       return -1;
 #endif
 
     case _SC_USER_GROUPS:
-#ifdef _POSIX_USER_GROUPS
+#if _POSIX_USER_GROUPS > 0
       return _POSIX_USER_GROUPS;
 #else
       return -1;
 #endif
     case _SC_USER_GROUPS_R:
-#ifdef _POSIX_USER_GROUPS_R
+#if _POSIX_USER_GROUPS_R > 0
       return _POSIX_USER_GROUPS_R;
 #else
       return -1;
@@ -1154,25 +1154,25 @@ __sysconf (name)
 #endif
 
     case _SC_TRACE:
-#ifdef _POSIX_TRACE
+#if _POSIX_TRACE > 0
       return _POSIX_TRACE;
 #else
       return -1;
 #endif
     case _SC_TRACE_EVENT_FILTER:
-#ifdef _POSIX_TRACE_EVENT_FILTER
+#if _POSIX_TRACE_EVENT_FILTER > 0
       return _POSIX_TRACE_EVENT_FILTER;
 #else
       return -1;
 #endif
     case _SC_TRACE_INHERIT:
-#ifdef _POSIX_TRACE_INHERIT
+#if _POSIX_TRACE_INHERIT > 0
       return _POSIX_TRACE_INHERIT;
 #else
       return -1;
 #endif
     case _SC_TRACE_LOG:
-#ifdef _POSIX_TRACE_LOG
+#if _POSIX_TRACE_LOG > 0
       return _POSIX_TRACE_LOG;
 #else
       return -1;
@@ -1198,14 +1198,14 @@ __sysconf (name)
       return 0;
 
     case _SC_IPV6:
-#ifdef _POSIX_IPV6
+#if _POSIX_IPV6 > 0
       return _POSIX_IPV6;
 #else
       return -1;
 #endif
 
     case _SC_RAW_SOCKETS:
-#ifdef _POSIX_RAW_SOCKETS
+#if _POSIX_RAW_SOCKETS > 0
       return _POSIX_RAW_SOCKETS;
 #else
       return -1;
diff --git a/sysdeps/posix/system.c b/sysdeps/posix/system.c
index 8548313314..f63dde4dae 100644
--- a/sysdeps/posix/system.c
+++ b/sysdeps/posix/system.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2000, 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2000, 2002, 2003, 2005 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
@@ -27,10 +27,6 @@
 #include <sysdep-cancel.h>
 
 
-#ifndef	HAVE_GNU_LD
-#define	__environ	environ
-#endif
-
 #define	SHELL_PATH	"/bin/sh"	/* Path of the shell.  */
 #define	SHELL_NAME	"sh"		/* Name to give it.  */
 
diff --git a/sysdeps/posix/sysv_signal.c b/sysdeps/posix/sysv_signal.c
index ca2e84f372..16fcd2c2ab 100644
--- a/sysdeps/posix/sysv_signal.c
+++ b/sysdeps/posix/sysv_signal.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1996, 1997, 2005 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
@@ -18,6 +18,8 @@
 
 #include <errno.h>
 #include <signal.h>
+#include <string.h>	/* For the real memset prototype.  */
+
 
 /* Tolerate non-threads versions of Posix */
 #ifndef SA_ONESHOT
diff --git a/sysdeps/posix/tempname.c b/sysdeps/posix/tempname.c
index 0d4bbc418a..c8973a0852 100644
--- a/sysdeps/posix/tempname.c
+++ b/sysdeps/posix/tempname.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-1999, 2000, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1991-1999, 2000, 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
@@ -242,11 +242,15 @@ __gen_tempname (char *tmpl, int kind)
      necessary to try all these combinations.  Instead if a reasonable
      number of names is tried (we define reasonable as 62**3) fail to
      give the system administrator the chance to remove the problems.  */
-  unsigned int attempts_min = 62 * 62 * 62;
+#define ATTEMPTS_MIN (62 * 62 * 62)
 
   /* The number of times to attempt to generate a temporary file.  To
      conform to POSIX, this must be no smaller than TMP_MAX.  */
-  unsigned int attempts = attempts_min < TMP_MAX ? TMP_MAX : attempts_min;
+#if ATTEMPTS_MIN < TMP_MAX
+  unsigned int attempts = TMP_MAX;
+#else
+  unsigned int attempts = ATTEMPTS_MIN;
+#endif
 
   len = strlen (tmpl);
   if (len < 6 || strcmp (&tmpl[len - 6], "XXXXXX"))