Update.

1998-04-07 08:51  Ulrich Drepper  <drepper@cygnus.com>

	* iconv/gconv.c: Take care for NULL arguments.
	* iconv/gconv_dl.c: Make find_func function global.
	* iconv/gconv_int.h: Add prototype for __gconv_find_func.
	Add prototypes for ASCII conversion functions.
	* iconv/gconv_simple.c: Add ASCII conversion functions.
	* locale/C-ctype.c: Correct charset name.

	* wcsmbs/Makefile (distribute): Add wcsmbsload.h.
	(routines): Remove wmemrtowcs and wmemrtombs, add wcsnlen and
	wcsmbsload.
	* wcsmbs/btowc.c: Rewrite to use iconv functionality.
	* wcsmbs/mbrtowc.c: Likewise.
	* wcsmbs/mbsnrtowcs.c: Likewise.
	* wcsmbs/mbsrtowcs.c: Likewise.
	* wcsmbs/wcrtomb.c: Likewise.
	* wcsmbs/wcsnrtombs.c: Likewise.
	* wcsmbs/wcsrtombs.c: Likewise.
	* wcsmbs/wctob.c: Likewise.
	* wcsmbs/wchar.h: Add prototype for __wcslen, wcsnlen.  Remove
	prototypes for wmemr*.
	* wcsmbs/wcslen.c: Rename to __wcslen and make wcslen weak alias.
	* wcsmbs/wcsnlen.c: New file.
	* wcsmbs/wcsmbsload.c: New file.
	* wcsmbs/wcsmbsload.h: New file.

	* manual/filesys.texi: Mention risks of tmpnam and mktemp.

	* manual/install.texi: Describe some more critical points.

	* string/string.h: Add prototype for __strnlen.
	* string/strnlen.c: Rename to __strnlen and make strnlen weak alias.

	* sysdeps/posix/mktemp.c: Rewrite to allow many more files and
	much less predictable names.
	* sysdeps/posix/mkstemp.c: Likewise.

1998-04-05  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* manual/libc.texinfo (Top): Change "file namespace" to "local
	namespace".

	* manual/socket.texi: Change file namespace to local namespace.
	(Out-of-Band Data): Remove unneeded variable link.
	(Host Address Functions): Use uint32_t consequently and add a
	number of clarifications for IPv4/IPv6, classless addresses.
	(Internet Namespace): Added some paragraphs about IPv6.
	Based on suggestions by Francesco Potorti` <F.Potorti@cnuce.cnr.it>.

1998-04-05  Philip Blundell  <Philip.Blundell@pobox.com>

	Update for draft-ietf-ipngwg-bsd-api-new-01.txt:

	* resolv/netdb.h (getnameinfo): Use `socklen_t' not `size_t'.
	(NI_NUMERICHOST, et al.): Tidy up and add comments.
	(AI_NUMERICHOST): Define.
	(getnodebyname): New prototype.
	(AI_V4MAPPED, et al.): New constants.

	* sysdeps/unix/bsd/bsd4.4/bits/sockaddr.h (SA_LEN): New macro.<
	* sysdeps/generic/bits/sockaddr.h (SA_LEN): Likewise.
	* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add sa_len
	for socket.
	* sysdeps/unix/sysv/linux/sa_len.c: New file.
	* sysdeps/unix/sysv/linux/Dist: Add sa_len.c.

	* sysdeps/unix/sysv/linux/bits/socket.h: Make multiple #inclusion safe.

	* sysdeps/generic/bits/sockunion.h: New file, defining sockaddr_union.
	* sysdeps/unix/sysv/linux/bits/sockunion.h: Likewise.
	* socket/Makefile (headers): Add bits/sockunion.h.
	* socket/sys/socket.h: Include <bits/sockunion.h>
	* inet/netinet/in.h: Include <bits/sockaddr.h> rather than
	<sys/socket.h>, to avoid getting sockaddr_union defined.
	* sysdeps/generic/bits/socket.h: Allow inclusion from netinet.in.h.
	* sysdeps/unix/sysv/linux/bits/socket.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/socket.h: Likewise.

	* sysdeps/unix/sysv/linux/if_index.c: Remove use of SIOCGIFCOUNT
	(2.2.x kernels won't have it).

1998-04-06 21:21  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/mach/hurd/bits/ioctls.h: Allow inclusion from hurd/ioctl.h.
	* sysdeps/mach/hurd/dl-sysdep.c: Use __ptr_t not caddr_t.
	* iconv/gconv_conf.c: Define MAXPATHLEN if not available before.
	Patches by UCHIYAMA Yasushi <uch@nop.or.jp>.

1998-04-05  Philip Blundell  <Philip.Blundell@pobox.com>

	* manual/socket.texi (Socket Addresses): Fix a typo.
	(Interface Naming): New section.

1998-04-05 23:29  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* configure.in: Check for CC using $ac_tool_prefix, to handle
	cross-compilation.  Use AC_CHECK_TOOL to find MiG.
	* config.make.in: Add MIG to be substituted.
	* mach/Machrules: Don't define MIG variable.

	Patch by Gordon Matzigkeit <gord@profitpress.com>.

1998-04-05  Mark Kettenis  <kettenis@phys.uva.nl>

	* elf/dl-load.c (decompose_rpath): Use local_strdup instead of
	strdupa to copy rpath.

1998-04-05  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* configure.in: Fix gcc version check.

	* aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less confusing.

1998-04-05  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* configure.in: Fix gcc version check.

	* aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less
	confusing.

1998-04-05  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* configure.in: Fix gcc version check.

	* aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less
	confusing.

1998-03-31  Mark Kettenis  <kettenis@phys.uva.nl>

	* sysdeps/unix/bsd/unlockpt.c (unlockpt): Call __ptsname_r instead
	of ptsname_r.

	* stdlib/stdlib.h: Change prototype of ptsname_r to make it more
	like ttyname_r.
	* sysdeps/unix/sysv/linux/ptsname.c (__ptsname_r): Likewise.
	* sysdeps/generic/ptsname.c (__ptsname_r): Likewise.
	* sysdeps/unix/grantpt.c (grantpt): Change check of return value
	of __ptsname_r accordingly.
	* login/openpty.c (openpty): Likewise.

1998-06-04 18:47  H.J. Lu  <hjl@gnu.org>

	* libio/fileops.c (_IO_file_xsgetn): Adjust pointers.

1998-04-06 13:58  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makeconfig (libtypes): Redo H.J. Lu's change of 1998-03-27.

	* Makerules: Readd missing rule for $(objpfx)stamp.oS.

1998-04-06  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/ypclnt.c: Don't give YPERR_RPC back, use the do_ypcall
	return value for better error checking.

20 files changed, 355 insertions, 96 deletions

diff --git a/sysdeps/generic/bits/sockaddr.h b/sysdeps/generic/bits/sockaddr.h
index 73a0e26..1c52344 100644
--- a/sysdeps/generic/bits/sockaddr.h
+++ b/sysdeps/generic/bits/sockaddr.h
@@ -1,5 +1,5 @@
 /* Definition of `struct sockaddr_*' common members.  Generic/4.2 BSD version.
-   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 1997, 1998 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
@@ -37,5 +37,8 @@ typedef unsigned short int sa_family_t;
 
 #define __SOCKADDR_COMMON_SIZE	(sizeof (unsigned short int))
 
+/* Return the length of a `sockaddr' structure.  */
+#define SA_LEN(_x)	__libc_sa_len((_x)->sa_family)
+extern int __libc_sa_len __P ((sa_family_t __af));
 
 #endif	/* bits/sockaddr.h */
diff --git a/sysdeps/generic/bits/socket.h b/sysdeps/generic/bits/socket.h
index a2858b8..5dc1e65 100644
--- a/sysdeps/generic/bits/socket.h
+++ b/sysdeps/generic/bits/socket.h
@@ -1,5 +1,5 @@
 /* System-specific socket constants and types.  Generic/4.3 BSD version.
-   Copyright (C) 1991, 92, 94, 95, 96, 97 Free Software Foundation, Inc.
+   Copyright (C) 1991, 92, 94, 95, 96, 97, 98 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
@@ -17,7 +17,7 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#ifndef _SYS_SOCKET_H
+#if !defined _SYS_SOCKET_H && !defined _NETINET_IN_H
 # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
 #endif
 
diff --git a/sysdeps/generic/bits/sockunion.h b/sysdeps/generic/bits/sockunion.h
new file mode 100644
index 0000000..8f82ce0
--- /dev/null
+++ b/sysdeps/generic/bits/sockunion.h
@@ -0,0 +1,40 @@
+/* Definition of `sockaddr_union'.  Generic/4.2 BSD version.
+   Copyright (C) 1998 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/*
+ * Never include this file directly; use <sys/socket.h> instead.
+ */
+
+#ifndef _BITS_SOCKUNION_H
+#define _BITS_SOCKUNION_H	1
+
+#include <netinet/in.h>
+#include <sys/un.h>
+
+/* Union of all sockaddr types (required by IPv6 Basic API).  */
+union sockaddr_union
+  {
+    struct sockaddr sa;
+    struct sockaddr_in sin;
+    struct sockaddr_in6 sin6;
+    struct sockaddr_un sun;
+    char __maxsize[128];
+  };
+
+#endif	/* bits/sockunion.h */
diff --git a/sysdeps/generic/ptsname.c b/sysdeps/generic/ptsname.c
index 7a442d0..1a2e61f 100644
--- a/sysdeps/generic/ptsname.c
+++ b/sysdeps/generic/ptsname.c
@@ -17,8 +17,9 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#include <stdlib.h>
 #include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
 
 /* Given the file descriptor of a master pty, return the pathname
    of the associated slave. */
@@ -28,14 +29,14 @@ ptsname (fd)
      int fd __attribute__ ((unused));
 {
   __set_errno (ENOSYS);
-  return 0;
+  return NULL;
 }
 
-char *
+int
 __ptsname_r (fd, buf, len)
      int fd __attribute__ ((unused));
      char *buf __attribute__ ((unused));
-     unsigned int len __attribute__ ((unused));
+     size_t len __attribute__ ((unused));
 {
   __set_errno (ENOSYS);
   return 0;
diff --git a/sysdeps/mach/hurd/bits/ioctls.h b/sysdeps/mach/hurd/bits/ioctls.h
index a5dc446..1145560 100644
--- a/sysdeps/mach/hurd/bits/ioctls.h
+++ b/sysdeps/mach/hurd/bits/ioctls.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992, 1993, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1992, 1993, 1996, 1997, 1998 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
@@ -16,8 +16,8 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#ifndef _SYS_IOCTL_H
-# error "Never use <bits/ioctls.h> directly; include <sys/ioctl.h> instead."
+#if !defined _HURD_IOCTL_H && !defined _SYS_IOCTLS_H
+# error "Never use <bits/ioctls.h> directly; include <hurd/ioctl.h> instead."
 #endif
 
 /* These macros are also defined in <bits/termios.h> (with numerically
diff --git a/sysdeps/mach/hurd/dl-sysdep.c b/sysdeps/mach/hurd/dl-sysdep.c
index 7c936e9..6fd6ea3 100644
--- a/sysdeps/mach/hurd/dl-sysdep.c
+++ b/sysdeps/mach/hurd/dl-sysdep.c
@@ -546,8 +546,8 @@ __close (int fd)
   return 0;
 }
 
-caddr_t weak_function
-__mmap (caddr_t addr, size_t len, int prot, int flags, int fd, off_t offset)
+__ptr_t weak_function
+__mmap (__ptr_t addr, size_t len, int prot, int flags, int fd, off_t offset)
 {
   error_t err;
   vm_prot_t vmprot;
@@ -656,7 +656,7 @@ _dl_sysdep_message (const char *msg, ...)
 			? VM_INHERIT_SHARE : VM_INHERIT_COPY);
     }
 
-  return err ? (caddr_t) __hurd_fail (err) : (caddr_t) mapaddr;
+  return err ? (__ptr_t) __hurd_fail (err) : (__ptr_t) mapaddr;
 }
 
 void weak_function
diff --git a/sysdeps/posix/mkstemp.c b/sysdeps/posix/mkstemp.c
index 3765488..fceb59b 100644
--- a/sysdeps/posix/mkstemp.c
+++ b/sysdeps/posix/mkstemp.c
@@ -19,9 +19,11 @@
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <fcntl.h>
 #include <unistd.h>
+#include <sys/time.h>
 
 /* Generate a unique temporary file name from TEMPLATE.
    The last six characters of TEMPLATE must be "XXXXXX";
@@ -33,30 +35,54 @@ mkstemp (template)
 {
   static const char letters[]
     = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+  static uint32_t value;
+  struct timeval tv;
+  char *XXXXXX;
   size_t len;
-  size_t i;
+  int count;
 
   len = strlen (template);
   if (len < 6 || strcmp (&template[len - 6], "XXXXXX"))
     {
       __set_errno (EINVAL);
-      return -1;
+      return NULL;
     }
 
-  if (sprintf (&template[len - 5], "%.5u",
-	       (unsigned int) getpid () % 100000) != 5)
-    /* Inconceivable lossage.  */
-    return -1;
+  /* This is where the Xs start.  */
+  XXXXXX = &template[len - 6];
 
-  for (i = 0; i < sizeof (letters); ++i)
+  /* Get some more or less random data.  */
+  __gettimeofday (&tv, NULL);
+  value += tv.tv_usec | getpid ();
+
+  for (count = 0; count < TMP_MAX; ++count)
     {
+      struct stat ignored;
+      uint32_t v = value;
       int fd;
 
-      template[len - 6] = letters[i];
+      /* Fill in the random bits.  */
+      XXXXXX[0] = letters[v % 62];
+      v /= 62;
+      XXXXXX[1] = letters[v % 62];
+      v /= 62;
+      XXXXXX[2] = letters[v % 62];
+      v /= 62;
+      XXXXXX[3] = letters[v % 62];
+      v /= 62;
+      XXXXXX[4] = letters[v % 62];
+      v /= 62;
+      XXXXXX[5] = letters[v % 62];
 
       fd = open (template, O_RDWR|O_CREAT|O_EXCL, 0600);
       if (fd >= 0)
+	/* The file does not exist.  */
 	return fd;
+
+      /* This is a random value.  It is only necessary that the next
+	 TMP_MAX values generated by adding 7777 to VALUE are different
+	 with (module 2^32).  */
+      value += 7777;
     }
 
   /* We return the null string if we can't find a unique file name.  */
diff --git a/sysdeps/posix/mktemp.c b/sysdeps/posix/mktemp.c
index f7a1783..6bbc4c0 100644
--- a/sysdeps/posix/mktemp.c
+++ b/sysdeps/posix/mktemp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992, 1993, 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1993, 1996, 1998 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
@@ -16,13 +16,15 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#include <errno.h>
+#include <stdint.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <errno.h>
 #include <unistd.h>
-#include <stdio.h>
-#include <sys/types.h>
 #include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
 
 /* Generate a unique temporary file name from TEMPLATE.
    The last six characters of TEMPLATE must be "XXXXXX";
@@ -33,8 +35,11 @@ mktemp (template)
 {
   static const char letters[]
     = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+  static uint32_t value;
+  struct timeval tv;
+  char *XXXXXX;
   size_t len;
-  size_t i;
+  int count;
 
   len = strlen (template);
   if (len < 6 || strcmp (&template[len - 6], "XXXXXX"))
@@ -43,20 +48,39 @@ mktemp (template)
       return NULL;
     }
 
-  if (sprintf (&template[len - 5], "%.5u",
-	       (unsigned int) getpid () % 100000) != 5)
-    /* Inconceivable lossage.  */
-    return NULL;
+  /* This is where the Xs start.  */
+  XXXXXX = &template[len - 6];
 
-  for (i = 0; i < sizeof (letters); ++i)
+  /* Get some more or less random data.  */
+  __gettimeofday (&tv, NULL);
+  value += tv.tv_usec | getpid ();
+
+  for (count = 0; count < TMP_MAX; ++count)
     {
       struct stat ignored;
+      uint32_t v = value;
 
-      template[len - 6] = letters[i];
+      /* Fill in the random bits.  */
+      XXXXXX[0] = letters[v % 62];
+      v /= 62;
+      XXXXXX[1] = letters[v % 62];
+      v /= 62;
+      XXXXXX[2] = letters[v % 62];
+      v /= 62;
+      XXXXXX[3] = letters[v % 62];
+      v /= 62;
+      XXXXXX[4] = letters[v % 62];
+      v /= 62;
+      XXXXXX[5] = letters[v % 62];
 
       if (stat (template, &ignored) < 0 && errno == ENOENT)
 	/* The file does not exist.  So return this name.  */
 	return template;
+
+      /* This is a random value.  It is only necessary that the next
+	 TMP_MAX values generated by adding 7777 to VALUE are different
+	 with (module 2^32).  */
+      value += 7777;
     }
 
   /* We return the null string if we can't find a unique file name.  */
diff --git a/sysdeps/unix/bsd/bsd4.4/bits/sockaddr.h b/sysdeps/unix/bsd/bsd4.4/bits/sockaddr.h
index d70dfe4..4d5fa1d 100644
--- a/sysdeps/unix/bsd/bsd4.4/bits/sockaddr.h
+++ b/sysdeps/unix/bsd/bsd4.4/bits/sockaddr.h
@@ -1,5 +1,5 @@
 /* Definition of `struct sockaddr_*' common members.  4.4 BSD version.
-   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 1997, 1998 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
@@ -38,5 +38,7 @@ typedef unsigned char sa_family_t;
 
 #define __SOCKADDR_COMMON_SIZE	(2 * sizeof (unsigned char))
 
+/* Return the length of a `sockaddr' structure.  */
+#define SA_LEN(_x)	((_x)->sa_len)
 
 #endif	/* bits/sockaddr.h */
diff --git a/sysdeps/unix/bsd/unlockpt.c b/sysdeps/unix/bsd/unlockpt.c
index 3de46ee..b25231c 100644
--- a/sysdeps/unix/bsd/unlockpt.c
+++ b/sysdeps/unix/bsd/unlockpt.c
@@ -34,7 +34,7 @@ unlockpt (fd)
 {
   char buf[PTYNAMELEN];
 
-  if (ptsname_r (fd, buf, PTYNAMELEN))
+  if (__ptsname_r (fd, buf, PTYNAMELEN))
     return -1;
 
   return revoke (buf);
diff --git a/sysdeps/unix/grantpt.c b/sysdeps/unix/grantpt.c
index 65a0d98..24f0e17 100644
--- a/sysdeps/unix/grantpt.c
+++ b/sysdeps/unix/grantpt.c
@@ -47,9 +47,9 @@ grantpt (fd)
   char namebuf[PTYNAMELEN];
 
   /* Some systems do it for us.  */
-  if (__ptsname_r (fd, namebuf, PTYNAMELEN) == NULL)
+  if (__ptsname_r (fd, namebuf, PTYNAMELEN) != 0)
     return -1;
-  if (stat (namebuf, &st))
+  if (__xstat (_STAT_VER, namebuf, &st) != 0)
     return -1;
 
   if (st.st_uid == getuid ())
diff --git a/sysdeps/unix/sysv/linux/Dist b/sysdeps/unix/sysv/linux/Dist
index 181ac53..b938504 100644
--- a/sysdeps/unix/sysv/linux/Dist
+++ b/sysdeps/unix/sysv/linux/Dist
@@ -46,6 +46,7 @@ rt_sigqueueinfo.c
 rt_sigreturn.c
 rt_sigsuspend.c
 rt_sigtimedwait.c
+sa_len.c
 scsi/sg.h
 scsi/scsi.h
 sys/acct.h
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 2bc1943..9abab1e 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -58,7 +58,7 @@ ifeq ($(subdir),socket)
 sysdep_headers += net/if.h net/if_ppp.h net/ppp-comp.h \
 		  net/ppp_defs.h net/if_arp.h net/route.h net/ethernet.h \
 		  net/if_slip.h net/if_packet.h
-sysdep_routines += cmsg_nxthdr
+sysdep_routines += cmsg_nxthdr sa_len
 endif
 
 ifeq ($(subdir),sunrpc)
diff --git a/sysdeps/unix/sysv/linux/arm/profil-counter.h b/sysdeps/unix/sysv/linux/arm/profil-counter.h
index d84e70e..0d5024f 100644
--- a/sysdeps/unix/sysv/linux/arm/profil-counter.h
+++ b/sysdeps/unix/sysv/linux/arm/profil-counter.h
@@ -1,5 +1,5 @@
 /* Low-level statistical profiling support function.  Linux/ARM version.
-   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998 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
@@ -18,9 +18,54 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <signal.h>
+#include <asm/ptrace.h>
+
+union k_sigcontext
+  {
+    struct
+      {
+	unsigned long int trap_no;
+	unsigned long int error_code;
+	unsigned long int oldmask;
+	unsigned long int arm_r0;
+	unsigned long int arm_r1;
+	unsigned long int arm_r2;
+	unsigned long int arm_r3;
+	unsigned long int arm_r4;
+	unsigned long int arm_r5;
+	unsigned long int arm_r6;
+	unsigned long int arm_r7;
+	unsigned long int arm_r8;
+	unsigned long int arm_r9;
+	unsigned long int arm_r10;
+	unsigned long int arm_fp;
+	unsigned long int arm_ip;
+	unsigned long int arm_sp;
+	unsigned long int arm_lr;
+	unsigned long int arm_pc;
+	unsigned long int arm_cpsr;
+      } v21;
+    struct
+      {
+	unsigned long int magic;
+	struct pt_regs reg;
+	unsigned long int trap_no;
+	unsigned long int error_code;
+	unsigned long int oldmask;
+      } v20;
+};
 
 void
-profil_counter (int signo, struct sigcontext sc)
+profil_counter (int signo, int _a2, int _a3, int _a4, union k_sigcontext sc)
 {
-  profil_count ((void *) sc.reg.ARM_pc);
+  /* The format of struct sigcontext changed between 2.0 and 2.1 kernels.
+     Fortunately 2.0 puts a magic number in the first word and this is not
+     a legal value for `trap_no', so we can tell them apart.  */
+
+  void *pc;
+  if (sc.v20.magic == 0x4B534154)
+    pc = (void *) sc.v20.reg.ARM_pc;
+  else
+    pc = (void *) sc.v21.arm_pc;
+  profil_count (pc);
 }
diff --git a/sysdeps/unix/sysv/linux/bits/socket.h b/sysdeps/unix/sysv/linux/bits/socket.h
index 0938a17..e74b011 100644
--- a/sysdeps/unix/sysv/linux/bits/socket.h
+++ b/sysdeps/unix/sysv/linux/bits/socket.h
@@ -17,7 +17,10 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#ifndef _SYS_SOCKET_H
+#ifndef __BITS_SOCKET_H
+#define __BITS_SOCKET_H
+
+#if !defined _SYS_SOCKET_H && !defined _NETINET_IN_H
 # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
 #endif
 
@@ -230,3 +233,5 @@ struct linger
     int l_onoff;		/* Nonzero to linger on close.  */
     int l_linger;		/* Time to linger.  */
   };
+
+#endif	/* bits/socket.h */
diff --git a/sysdeps/unix/sysv/linux/bits/sockunion.h b/sysdeps/unix/sysv/linux/bits/sockunion.h
new file mode 100644
index 0000000..b66ac41
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bits/sockunion.h
@@ -0,0 +1,46 @@
+/* Definition of `sockaddr_union'.  Linux version.
+   Copyright (C) 1998 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_SOCKET_H
+# error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
+#endif
+
+#include <netash/ash.h>
+#include <netatalk/at.h>
+#include <netax25/ax25.h>
+#include <netinet/in.h>
+#include <netipx/ipx.h>
+#include <netrose/rose.h>
+#include <sys/un.h>
+
+/* Union of all sockaddr types (required by IPv6 Basic API).  This is
+   somewhat evil.  */
+union sockaddr_union
+  {
+    struct sockaddr sa;
+    struct sockaddr_ash sash;
+    struct sockaddr_at sat;
+    struct sockaddr_ax25 sax25;
+    struct sockaddr_in sin;
+    struct sockaddr_in6 sin6;
+    struct sockaddr_ipx sipx;
+    struct sockaddr_rose rose;
+    struct sockaddr_un sun;
+    char __maxsize[128];
+  };
diff --git a/sysdeps/unix/sysv/linux/if_index.c b/sysdeps/unix/sysv/linux/if_index.c
index 9d9bf0e..de66b5c 100644
--- a/sysdeps/unix/sysv/linux/if_index.c
+++ b/sysdeps/unix/sysv/linux/if_index.c
@@ -117,52 +117,46 @@ if_nameindex (void)
 #else
   int fd = opensock ();
   struct ifconf ifc;
-  unsigned int rq_ifs = 4, nifs, i;
+  unsigned int nifs, i;
   int rq_len;
   struct if_nameindex *idx = NULL;
-#ifdef SIOCGIFCOUNT
-  static int siocgifcount_works = 1;
-#endif
+  static int new_siocgifconf = 1;
+#define RQ_IFS	4
 
   if (fd < 0)
     return NULL;
 
-#ifdef SIOCGIFCOUNT
-  /* We may be able to find out how many interfaces really exist, rather
-     than guessing.  This ioctl is not present in kernels before version
-     2.1.50.  */
-  if (siocgifcount_works)
-    {
-      int serrno = errno;
+  ifc.ifc_buf = NULL;
 
-      if (ioctl (fd, SIOCGIFCOUNT, &nifs) < 0)
+  /* We may be able to get the needed buffer size directly, rather than
+     guessing.  */
+  if (new_siocgifconf)
+    {
+      ifc.ifc_buf = NULL;
+      ifc.ifc_len = 0;
+      if (ioctl (fd, SIOCGIFCONF, &ifc) < 0 || ifc.ifc_len == 0)
 	{
-	  if (errno == EINVAL)
-	    {
-	      siocgifcount_works = 0;
-	      __set_errno (serrno);
-	    }
+	  new_siocgifconf = 0;
+	  rq_len = RQ_IFS * sizeof (struct ifreq);
 	}
       else
-	rq_ifs = nifs + 1;
+	rq_len = ifc.ifc_len;
     }
-#endif
-
-  ifc.ifc_buf = NULL;
+  else
+    rq_len = RQ_IFS * sizeof (struct ifreq);
 
   /* Read all the interfaces out of the kernel.  */
   do
     {
-      rq_len = ifc.ifc_len = rq_ifs * sizeof (struct ifreq);
-      ifc.ifc_buf = alloca (ifc.ifc_len);
+      ifc.ifc_buf = alloca (ifc.ifc_len = rq_len);
       if ((ifc.ifc_buf == NULL) || (ioctl (fd, SIOCGIFCONF, &ifc) < 0))
 	{
 	  close (fd);
 	  return NULL;
 	}
-      rq_ifs *= 2;
+      rq_len *= 2;
     }
-  while (ifc.ifc_len == rq_len);
+  while (ifc.ifc_len == rq_len && new_siocgifconf == 0);
 
   nifs = ifc.ifc_len / sizeof (struct ifreq);
 
diff --git a/sysdeps/unix/sysv/linux/mips/bits/socket.h b/sysdeps/unix/sysv/linux/mips/bits/socket.h
index f481a47..75ed54f 100644
--- a/sysdeps/unix/sysv/linux/mips/bits/socket.h
+++ b/sysdeps/unix/sysv/linux/mips/bits/socket.h
@@ -17,7 +17,7 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#ifndef _SYS_STAT_H
+#if !defined _SYS_STAT_H && !defined _NETINET_IN_H
 # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
 #endif
 
diff --git a/sysdeps/unix/sysv/linux/ptsname.c b/sysdeps/unix/sysv/linux/ptsname.c
index 77b6d80..c81f235 100644
--- a/sysdeps/unix/sysv/linux/ptsname.c
+++ b/sysdeps/unix/sysv/linux/ptsname.c
@@ -24,6 +24,7 @@
 #include <string.h>
 #include <errno.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 #include "pty-internal.h"
 
@@ -40,21 +41,38 @@ char *
 ptsname (fd)
      int fd;
 {
-  return __ptsname_r (fd, namebuf, PTYNAMELEN);
+  return __ptsname_r (fd, namebuf, PTYNAMELEN) != 0 ? NULL : namebuf;
 }
 
-char *
-__ptsname_r (fd, buf, len)
+int
+__ptsname_r (fd, buf, buflen)
      int fd;
      char *buf;
-     unsigned int len;
+     size_t buflen;
 {
-  char nbuf[PTYNAMELEN], idbuf[6];
-  int ptyno;
   struct stat st;
+  int save = errno;
+  int ptyno;
+  char nbuf[PTYNAMELEN], idbuf[6];
+  char *cp;
 
 #ifdef TIOCGPTN
   static int tiocgptn_works = 1;
+#endif
+
+  if (!buf)
+    {
+      __set_errno (EINVAL);
+      return EINVAL;
+    }
+
+  if (!__isatty (fd))
+    {
+      __set_errno (ENOTTY);
+      return ENOTTY;
+    }
+
+#ifdef TIOCGPTN
   if (tiocgptn_works)
     {
       if (ioctl (fd, TIOCGPTN, &ptyno) == 0)
@@ -62,23 +80,21 @@ __ptsname_r (fd, buf, len)
       else
 	{
 	  if(errno != EINVAL)
-	    return 0;
+	    return errno;
 	  else
 	    tiocgptn_works = 0;
 	}
     }
 #endif
-  /* /dev/ptmx will make it into the kernel before 32 bit dev_t, so
-     this should be safe.  */
-  if (__fxstat (_STAT_VER, fd, &st))
-    return 0;
+  if (__fxstat (_STAT_VER, fd, &st) < 0)
+    return errno;
 
   ptyno = minor (st.st_rdev);
   if (major (st.st_rdev) == 4)
     ptyno -= 128;
 
 #ifdef TIOCGPTN
-gotit:
+ gotit:
 #endif
   /* Two different possible naming schemes for pty slaves:
      the SVr4 way.  */
@@ -86,22 +102,32 @@ gotit:
   idbuf[5] = '\0';
   __stpcpy (__stpcpy (nbuf, "/dev/pts/"),
 	    _itoa_word (ptyno, &idbuf[4], 10, 0));
-  if (!__xstat (_STAT_VER, nbuf, &st))
-    return strncpy (buf, nbuf, len);
-  else
-    if (errno != ENOENT)
-      return NULL;
-
-  /* ...and the BSD way.  */
-  nbuf[5]  = 't';
-  nbuf[7]  = 'y';
-  nbuf[8]  = __ptyname1[ptyno / 16];
-  nbuf[9]  = __ptyname2[ptyno % 16];
-  nbuf[10] = '\0';
-
-  if (__xstat (_STAT_VER, nbuf, &st))
-    return NULL;
-
-  return strncpy (buf, nbuf, len);
+  if (__xstat (_STAT_VER, nbuf, &st) < 0)
+    {
+      if (errno != ENOENT)
+	return errno;
+
+      /* ...and the BSD way.  */
+      nbuf[5]  = 't';
+      nbuf[7]  = 'y';
+      nbuf[8]  = __ptyname1[ptyno / 16];
+      nbuf[9]  = __ptyname2[ptyno % 16];
+      nbuf[10] = '\0';
+
+      if (__xstat (_STAT_VER, nbuf, &st) < 0)
+	return errno;
+    }
+
+  if (buflen < strlen (nbuf) + 1)
+    {
+      __set_errno (ERANGE);
+      return ERANGE;
+    }
+
+  cp = __stpncpy (buf, nbuf, buflen);
+  cp[0] = '\0';
+
+  __set_errno (save);
+  return 0;
 }
 weak_alias (__ptsname_r, ptsname_r)
diff --git a/sysdeps/unix/sysv/linux/sa_len.c b/sysdeps/unix/sysv/linux/sa_len.c
new file mode 100644
index 0000000..3c66040
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sa_len.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 1998 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sys/socket.h>
+
+#include <netatalk/at.h>
+#include <netax25/ax25.h>
+#include <netinet/in.h>
+#include <netipx/ipx.h>
+#include <netrose/rose.h>
+
+int
+__libc_sa_len (sa_family_t af)
+{
+  switch (af)
+    {
+    case AF_APPLETALK:
+      return sizeof (struct sockaddr_at);
+    case AF_AX25:
+      return sizeof (struct sockaddr_ax25);
+    case AF_INET:
+      return sizeof (struct sockaddr_in);
+    case AF_INET6:
+      return sizeof (struct sockaddr_in6);
+    case AF_IPX:
+      return sizeof (struct sockaddr_ipx);
+    case AF_ROSE:
+      return sizeof (struct sockaddr_rose);
+    }
+  return 0;
+}