Port to latest gnulib. There were a lot of changes, so the

simplest way to get this up and running was to switch to coreutils
bootstrap procedure.  I noticed one feature missing after this
merge: the ability to update a single .po file.  I can add that
later if need be.
* README-cvs, bootstrap.conf: New files.
* lib/.cvsignore: Remove Makefile.am, printf-parse.c, vasnprintf.c.
* lib/printf-parse.c, lib/vasnprintf.c: New files, from coreutils,
to override gnulib, so that we don't need xsize.h.
* bootstrap: Replace with coreutils bootstrap, except add support
for paxutils.
* configure.ac (gl_USE_SYSTEM_EXTENSIONS): Remove, as gl_EARLY now
does this.
(gl_EARLY, gl_INIT): Add.
(tar_GNULIB): Remove.
* gnulib.modules: Add configmake.
* lib/Makefile.tmpl: Remove, replacing with....
* lib/Makefile.am: New file.
* src/Makefile.am (tar.o): Remove dependency: Automake does this
for us.
* src/tar.c: Include <configmake.h> and <rmt-command.h>, not
<localedir.h>.

5 files changed, 1494 insertions, 59 deletions

diff --git a/lib/.cvsignore b/lib/.cvsignore
index ff13bff2..b1620608 100644
--- a/lib/.cvsignore
+++ b/lib/.cvsignore
@@ -1,6 +1,5 @@
 .deps
 Makefile
-Makefile.am
 Makefile.in
 __fpending.c
 __fpending.h
@@ -133,7 +132,6 @@ paxnames.c
 pipe-safer.c
 printf-args.c
 printf-args.h
-printf-parse.c
 printf-parse.h
 quote.c
 quote.h
@@ -209,7 +207,6 @@ unsetenv.c
 utime.c
 utimens.c
 utimens.h
-vasnprintf.c
 vasnprintf.h
 verify.h
 version-etc-fsf.c
diff --git a/lib/Makefile.am b/lib/Makefile.am
new file mode 100644
index 00000000..b9fc8a45
--- /dev/null
+++ b/lib/Makefile.am
@@ -0,0 +1,41 @@
+# Makefile for GNU tar library.			-*- Makefile -*-
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2003, 2004,
+# 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+include gnulib.mk
+
+rmt-command.h : Makefile
+	rm -f $@-t $@
+	echo "#ifndef DEFAULT_RMT_COMMAND" >> $@-t
+	echo "# define DEFAULT_RMT_COMMAND \"$(DEFAULT_RMT_DIR)/`echo rmt | sed '$(transform)'`$(EXEEXT)\"" >> $@-t
+	echo "#endif" >> $@-t
+	mv $@-t $@
+BUILT_SOURCES += rmt-command.h
+CLEANFILES += rmt-command.h rmt-command.h-t
+
+noinst_HEADERS += system.h system-ioctl.h rmt.h paxlib.h stdopen.h
+libtar_a_SOURCES += \
+  paxerror.c paxexit.c paxlib.h paxnames.c \
+  prepargs.c prepargs.h \
+  rtapelib.c \
+  rmt.h \
+  stdopen.c stdopen.h \
+  system.h system-ioctl.h
+
+libtar_a_LIBADD += $(LIBOBJS)
+libtar_a_DEPENDENCIES += $(LIBOBJS)
diff --git a/lib/Makefile.tmpl b/lib/Makefile.tmpl
deleted file mode 100644
index 48692016..00000000
--- a/lib/Makefile.tmpl
+++ /dev/null
@@ -1,56 +0,0 @@
-# Makefile for GNU tar library.	-*- Makefile -*-
-
-# Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2003, 2004,
-# 2005, 2006 Free Software Foundation, Inc.
-
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2, or (at your option)
-## any later version.
-
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-
-## You should have received a copy of the GNU General Public License
-## along with this program; if not, write to the Free Software
-## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-## 02110-1301, USA.
-
-noinst_LIBRARIES = libtar.a
-noinst_HEADERS = system.h system-ioctl.h localedir.h rmt.h paxlib.h stdopen.h
-libtar_a_SOURCES = prepargs.c prepargs.h rtapelib.c paxerror.c paxexit.c paxnames.c stdopen.c
-
-localedir = $(datadir)/locale
-
-DISTCLEANFILES = localedir.h
-localedir.h : Makefile
-	echo '#define LOCALEDIR "$(localedir)"' >$@
-	echo "#ifndef DEFAULT_RMT_COMMAND" >> $@
-	echo "# define DEFAULT_RMT_COMMAND \"$(DEFAULT_RMT_DIR)/`echo rmt | sed '$(transform)'`$(EXEEXT)\"" >> $@
-	echo "#endif" >> $@
-
-rtapelib.o: localedir.h
-
-libtar_a_LIBADD = $(LIBOBJS) $(ALLOCA)
-libtar_a_DEPENDENCIES = $(libtar_a_LIBADD)
-
-BUILT_SOURCES =
-AM_CPPFLAGS =
-EXTRA_DIST = Makefile.tmpl
-MAINTAINERCLEANFILES =
-MOSTLYCLEANFILES =
-lib_OBJECTS = $(libtar_a_OBJECTS)
-
-# Special rule for getdate
-#
-# Say $(srcdir), so GNU make does not report an ambiguity with the .y.c rule.
-$(srcdir)/getdate.c: getdate.y
-	cd $(srcdir) && \
-	  $(YACC) $(YFLAGS) getdate.y && \
-	  mv -f y.tab.c getdate.c
-
-SUFFIXES = .o .c .h
-CLEANFILES =
-# gnulib modules
diff --git a/lib/printf-parse.c b/lib/printf-parse.c
new file mode 100644
index 00000000..f8e0ceda
--- /dev/null
+++ b/lib/printf-parse.c
@@ -0,0 +1,535 @@
+/* Formatted output to strings.
+   Copyright (C) 1999-2000, 2002-2004, 2006 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#include <config.h>
+
+/* Specification.  */
+#if WIDE_CHAR_VERSION
+# include "wprintf-parse.h"
+#else
+# include "printf-parse.h"
+#endif
+
+/* Get size_t, NULL.  */
+#include <stddef.h>
+
+/* Get intmax_t.  */
+#if HAVE_STDINT_H_WITH_UINTMAX
+# include <stdint.h>
+#endif
+#if HAVE_INTTYPES_H_WITH_UINTMAX
+# include <inttypes.h>
+#endif
+
+/* malloc(), realloc(), free().  */
+#include <stdlib.h>
+
+#ifndef SIZE_MAX
+# define SIZE_MAX ((size_t) -1)
+#endif
+
+#if WIDE_CHAR_VERSION
+# define PRINTF_PARSE wprintf_parse
+# define CHAR_T wchar_t
+# define DIRECTIVE wchar_t_directive
+# define DIRECTIVES wchar_t_directives
+#else
+# define PRINTF_PARSE printf_parse
+# define CHAR_T char
+# define DIRECTIVE char_directive
+# define DIRECTIVES char_directives
+#endif
+
+#ifdef STATIC
+STATIC
+#endif
+int
+PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
+{
+  const CHAR_T *cp = format;		/* pointer into format */
+  size_t arg_posn = 0;		/* number of regular arguments consumed */
+  size_t d_allocated;			/* allocated elements of d->dir */
+  size_t a_allocated;			/* allocated elements of a->arg */
+  size_t max_width_length = 0;
+  size_t max_precision_length = 0;
+
+  d->count = 0;
+  d_allocated = 1;
+  d->dir = malloc (d_allocated * sizeof (DIRECTIVE));
+  if (d->dir == NULL)
+    /* Out of memory.  */
+    return -1;
+
+  a->count = 0;
+  a_allocated = 0;
+  a->arg = NULL;
+
+#define REGISTER_ARG(_index_,_type_) \
+  {									\
+    size_t n = (_index_);						\
+    if (n >= a_allocated)						\
+      {									\
+	size_t memory_size;						\
+	argument *memory;						\
+									\
+	a_allocated *= 2;						\
+	if (a_allocated <= n)						\
+	  a_allocated = n + 1;						\
+	if (SIZE_MAX / sizeof (argument) < a_allocated)			\
+	  /* Overflow, would lead to out of memory.  */			\
+	  goto error;							\
+	memory_size = a_allocated * sizeof (argument);			\
+	memory = (a->arg						\
+		  ? realloc (a->arg, memory_size)			\
+		  : malloc (memory_size));				\
+	if (memory == NULL)						\
+	  /* Out of memory.  */						\
+	  goto error;							\
+	a->arg = memory;						\
+      }									\
+    while (a->count <= n)						\
+      a->arg[a->count++].type = TYPE_NONE;				\
+    if (a->arg[n].type == TYPE_NONE)					\
+      a->arg[n].type = (_type_);					\
+    else if (a->arg[n].type != (_type_))				\
+      /* Ambiguous type for positional argument.  */			\
+      goto error;							\
+  }
+
+  while (*cp != '\0')
+    {
+      CHAR_T c = *cp++;
+      if (c == '%')
+	{
+	  size_t arg_index = ARG_NONE;
+	  DIRECTIVE *dp = &d->dir[d->count];/* pointer to next directive */
+
+	  /* Initialize the next directive.  */
+	  dp->dir_start = cp - 1;
+	  dp->flags = 0;
+	  dp->width_start = NULL;
+	  dp->width_end = NULL;
+	  dp->width_arg_index = ARG_NONE;
+	  dp->precision_start = NULL;
+	  dp->precision_end = NULL;
+	  dp->precision_arg_index = ARG_NONE;
+	  dp->arg_index = ARG_NONE;
+
+	  /* Test for positional argument.  */
+	  if (*cp >= '0' && *cp <= '9')
+	    {
+	      const CHAR_T *np;
+
+	      for (np = cp; *np >= '0' && *np <= '9'; np++)
+		;
+	      if (*np == '$')
+		{
+		  size_t n = 0;
+
+		  for (np = cp; *np >= '0' && *np <= '9'; np++)
+		    if (n < SIZE_MAX / 10)
+		      n = 10 * n + (*np - '0');
+		    else
+		      /* n too large for memory.  */
+		      goto error;
+		  if (n == 0)
+		    /* Positional argument 0.  */
+		    goto error;
+		  arg_index = n - 1;
+		  cp = np + 1;
+		}
+	    }
+
+	  /* Read the flags.  */
+	  for (;;)
+	    {
+	      if (*cp == '\'')
+		{
+		  dp->flags |= FLAG_GROUP;
+		  cp++;
+		}
+	      else if (*cp == '-')
+		{
+		  dp->flags |= FLAG_LEFT;
+		  cp++;
+		}
+	      else if (*cp == '+')
+		{
+		  dp->flags |= FLAG_SHOWSIGN;
+		  cp++;
+		}
+	      else if (*cp == ' ')
+		{
+		  dp->flags |= FLAG_SPACE;
+		  cp++;
+		}
+	      else if (*cp == '#')
+		{
+		  dp->flags |= FLAG_ALT;
+		  cp++;
+		}
+	      else if (*cp == '0')
+		{
+		  dp->flags |= FLAG_ZERO;
+		  cp++;
+		}
+	      else
+		break;
+	    }
+
+	  /* Parse the field width.  */
+	  if (*cp == '*')
+	    {
+	      dp->width_start = cp;
+	      cp++;
+	      dp->width_end = cp;
+	      if (max_width_length < 1)
+		max_width_length = 1;
+
+	      /* Test for positional argument.  */
+	      if (*cp >= '0' && *cp <= '9')
+		{
+		  const CHAR_T *np;
+
+		  for (np = cp; *np >= '0' && *np <= '9'; np++)
+		    ;
+		  if (*np == '$')
+		    {
+		      size_t n = 0;
+
+		      for (np = cp; *np >= '0' && *np <= '9'; np++)
+			if (n < SIZE_MAX / 10)
+			  n = 10 * n + (*np - '0');
+			else
+			  /* n too large for memory.  */
+			  goto error;
+		      if (n == 0)
+			/* Positional argument 0.  */
+			goto error;
+		      dp->width_arg_index = n - 1;
+		      cp = np + 1;
+		    }
+		}
+	      if (dp->width_arg_index == ARG_NONE)
+		{
+		  dp->width_arg_index = arg_posn++;
+		  if (dp->width_arg_index == ARG_NONE)
+		    /* arg_posn wrapped around.  */
+		    goto error;
+		}
+	      REGISTER_ARG (dp->width_arg_index, TYPE_INT);
+	    }
+	  else if (*cp >= '0' && *cp <= '9')
+	    {
+	      size_t width_length;
+
+	      dp->width_start = cp;
+	      for (; *cp >= '0' && *cp <= '9'; cp++)
+		;
+	      dp->width_end = cp;
+	      width_length = dp->width_end - dp->width_start;
+	      if (max_width_length < width_length)
+		max_width_length = width_length;
+	    }
+
+	  /* Parse the precision.  */
+	  if (*cp == '.')
+	    {
+	      cp++;
+	      if (*cp == '*')
+		{
+		  dp->precision_start = cp - 1;
+		  cp++;
+		  dp->precision_end = cp;
+		  if (max_precision_length < 2)
+		    max_precision_length = 2;
+
+		  /* Test for positional argument.  */
+		  if (*cp >= '0' && *cp <= '9')
+		    {
+		      const CHAR_T *np;
+
+		      for (np = cp; *np >= '0' && *np <= '9'; np++)
+			;
+		      if (*np == '$')
+			{
+			  size_t n = 0;
+
+			  for (np = cp; *np >= '0' && *np <= '9'; np++)
+			    if (n < SIZE_MAX / 10)
+			      n = 10 * n + (*np - '0');
+			    else
+			      /* n too large for memory.  */
+			      goto error;
+			  if (n == 0)
+			    /* Positional argument 0.  */
+			    goto error;
+			  dp->precision_arg_index = n - 1;
+			  cp = np + 1;
+			}
+		    }
+		  if (dp->precision_arg_index == ARG_NONE)
+		    {
+		      dp->precision_arg_index = arg_posn++;
+		      if (dp->precision_arg_index == ARG_NONE)
+			/* arg_posn wrapped around.  */
+			goto error;
+		    }
+		  REGISTER_ARG (dp->precision_arg_index, TYPE_INT);
+		}
+	      else
+		{
+		  size_t precision_length;
+
+		  dp->precision_start = cp - 1;
+		  for (; *cp >= '0' && *cp <= '9'; cp++)
+		    ;
+		  dp->precision_end = cp;
+		  precision_length = dp->precision_end - dp->precision_start;
+		  if (max_precision_length < precision_length)
+		    max_precision_length = precision_length;
+		}
+	    }
+
+	  {
+	    arg_type type;
+
+	    /* Parse argument type/size specifiers.  */
+	    {
+	      int flags = 0;
+
+	      for (;;)
+		{
+		  if (*cp == 'h')
+		    {
+		      flags |= (1 << (flags & 1));
+		      cp++;
+		    }
+		  else if (*cp == 'L')
+		    {
+		      flags |= 4;
+		      cp++;
+		    }
+		  else if (*cp == 'l')
+		    {
+		      flags += 8;
+		      cp++;
+		    }
+#ifdef HAVE_INTMAX_T
+		  else if (*cp == 'j')
+		    {
+		      if (sizeof (intmax_t) > sizeof (long))
+			{
+			  /* intmax_t = long long */
+			  flags += 16;
+			}
+		      else if (sizeof (intmax_t) > sizeof (int))
+			{
+			  /* intmax_t = long */
+			  flags += 8;
+			}
+		      cp++;
+		    }
+#endif
+		  else if (*cp == 'z' || *cp == 'Z')
+		    {
+		      /* 'z' is standardized in ISO C 99, but glibc uses 'Z'
+			 because the warning facility in gcc-2.95.2 understands
+			 only 'Z' (see gcc-2.95.2/gcc/c-common.c:1784).  */
+		      if (sizeof (size_t) > sizeof (long))
+			{
+			  /* size_t = long long */
+			  flags += 16;
+			}
+		      else if (sizeof (size_t) > sizeof (int))
+			{
+			  /* size_t = long */
+			  flags += 8;
+			}
+		      cp++;
+		    }
+		  else if (*cp == 't')
+		    {
+		      if (sizeof (ptrdiff_t) > sizeof (long))
+			{
+			  /* ptrdiff_t = long long */
+			  flags += 16;
+			}
+		      else if (sizeof (ptrdiff_t) > sizeof (int))
+			{
+			  /* ptrdiff_t = long */
+			  flags += 8;
+			}
+		      cp++;
+		    }
+		  else
+		    break;
+		}
+
+	      /* Read the conversion character.  */
+	      c = *cp++;
+	      switch (c)
+		{
+		case 'd': case 'i':
+#ifdef HAVE_LONG_LONG
+		  if (flags >= 16 || (flags & 4))
+		    type = TYPE_LONGLONGINT;
+		  else
+#endif
+		  if (flags >= 8)
+		    type = TYPE_LONGINT;
+		  else if (flags & 2)
+		    type = TYPE_SCHAR;
+		  else if (flags & 1)
+		    type = TYPE_SHORT;
+		  else
+		    type = TYPE_INT;
+		  break;
+		case 'o': case 'u': case 'x': case 'X':
+#ifdef HAVE_LONG_LONG
+		  if (flags >= 16 || (flags & 4))
+		    type = TYPE_ULONGLONGINT;
+		  else
+#endif
+		  if (flags >= 8)
+		    type = TYPE_ULONGINT;
+		  else if (flags & 2)
+		    type = TYPE_UCHAR;
+		  else if (flags & 1)
+		    type = TYPE_USHORT;
+		  else
+		    type = TYPE_UINT;
+		  break;
+		case 'f': case 'F': case 'e': case 'E': case 'g': case 'G':
+		case 'a': case 'A':
+#ifdef HAVE_LONG_DOUBLE
+		  if (flags >= 16 || (flags & 4))
+		    type = TYPE_LONGDOUBLE;
+		  else
+#endif
+		  type = TYPE_DOUBLE;
+		  break;
+		case 'c':
+		  if (flags >= 8)
+#ifdef HAVE_WINT_T
+		    type = TYPE_WIDE_CHAR;
+#else
+		    goto error;
+#endif
+		  else
+		    type = TYPE_CHAR;
+		  break;
+#ifdef HAVE_WINT_T
+		case 'C':
+		  type = TYPE_WIDE_CHAR;
+		  c = 'c';
+		  break;
+#endif
+		case 's':
+		  if (flags >= 8)
+#ifdef HAVE_WCHAR_T
+		    type = TYPE_WIDE_STRING;
+#else
+		    goto error;
+#endif
+		  else
+		    type = TYPE_STRING;
+		  break;
+#ifdef HAVE_WCHAR_T
+		case 'S':
+		  type = TYPE_WIDE_STRING;
+		  c = 's';
+		  break;
+#endif
+		case 'p':
+		  type = TYPE_POINTER;
+		  break;
+		case 'n':
+#ifdef HAVE_LONG_LONG
+		  if (flags >= 16 || (flags & 4))
+		    type = TYPE_COUNT_LONGLONGINT_POINTER;
+		  else
+#endif
+		  if (flags >= 8)
+		    type = TYPE_COUNT_LONGINT_POINTER;
+		  else if (flags & 2)
+		    type = TYPE_COUNT_SCHAR_POINTER;
+		  else if (flags & 1)
+		    type = TYPE_COUNT_SHORT_POINTER;
+		  else
+		    type = TYPE_COUNT_INT_POINTER;
+		  break;
+		case '%':
+		  type = TYPE_NONE;
+		  break;
+		default:
+		  /* Unknown conversion character.  */
+		  goto error;
+		}
+	    }
+
+	    if (type != TYPE_NONE)
+	      {
+		dp->arg_index = arg_index;
+		if (dp->arg_index == ARG_NONE)
+		  {
+		    dp->arg_index = arg_posn++;
+		    if (dp->arg_index == ARG_NONE)
+		      /* arg_posn wrapped around.  */
+		      goto error;
+		  }
+		REGISTER_ARG (dp->arg_index, type);
+	      }
+	    dp->conversion = c;
+	    dp->dir_end = cp;
+	  }
+
+	  d->count++;
+	  if (d->count >= d_allocated)
+	    {
+	      DIRECTIVE *memory;
+
+	      if (SIZE_MAX / (2 * sizeof (DIRECTIVE)) < d_allocated)
+		/* Overflow, would lead to out of memory.  */
+		goto error;
+	      d_allocated *= 2;
+	      memory = realloc (d->dir, d_allocated * sizeof (DIRECTIVE));
+	      if (memory == NULL)
+		/* Out of memory.  */
+		goto error;
+	      d->dir = memory;
+	    }
+	}
+    }
+  d->dir[d->count].dir_start = cp;
+
+  d->max_width_length = max_width_length;
+  d->max_precision_length = max_precision_length;
+  return 0;
+
+error:
+  if (a->arg)
+    free (a->arg);
+  if (d->dir)
+    free (d->dir);
+  return -1;
+}
+
+#undef DIRECTIVES
+#undef DIRECTIVE
+#undef CHAR_T
+#undef PRINTF_PARSE
diff --git a/lib/vasnprintf.c b/lib/vasnprintf.c
new file mode 100644
index 00000000..78ead8e3
--- /dev/null
+++ b/lib/vasnprintf.c
@@ -0,0 +1,918 @@
+/* vsprintf with automatic memory allocation.
+   Copyright (C) 1999, 2002-2006 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Tell glibc's <stdio.h> to provide a prototype for snprintf().
+   This must come before <config.h> because <config.h> may include
+   <features.h>, and once <features.h> has been included, it's too late.  */
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE    1
+#endif
+
+#include <config.h>
+
+#ifndef IN_LIBINTL
+# include <alloca.h>
+#endif
+
+/* Specification.  */
+#if WIDE_CHAR_VERSION
+# include "vasnwprintf.h"
+#else
+# include "vasnprintf.h"
+#endif
+
+#include <stdio.h>	/* snprintf(), sprintf() */
+#include <stdlib.h>	/* abort(), malloc(), realloc(), free() */
+#include <string.h>	/* memcpy(), strlen() */
+#include <errno.h>	/* errno */
+#include <limits.h>	/* CHAR_BIT, INT_MAX */
+#include <float.h>	/* DBL_MAX_EXP, LDBL_MAX_EXP */
+#if WIDE_CHAR_VERSION
+# include "wprintf-parse.h"
+#else
+# include "printf-parse.h"
+#endif
+
+#ifndef SIZE_MAX
+# define SIZE_MAX ((size_t) -1)
+#endif
+
+/* Some systems, like OSF/1 4.0 and Woe32, don't have EOVERFLOW.  */
+#ifndef EOVERFLOW
+# define EOVERFLOW E2BIG
+#endif
+
+#ifdef HAVE_WCHAR_T
+# ifdef HAVE_WCSLEN
+#  define local_wcslen wcslen
+# else
+   /* Solaris 2.5.1 has wcslen() in a separate library libw.so. To avoid
+      a dependency towards this library, here is a local substitute.
+      Define this substitute only once, even if this file is included
+      twice in the same compilation unit.  */
+#  ifndef local_wcslen_defined
+#   define local_wcslen_defined 1
+static size_t
+local_wcslen (const wchar_t *s)
+{
+  const wchar_t *ptr;
+
+  for (ptr = s; *ptr != (wchar_t) 0; ptr++)
+    ;
+  return ptr - s;
+}
+#  endif
+# endif
+#endif
+
+#if WIDE_CHAR_VERSION
+# define VASNPRINTF vasnwprintf
+# define CHAR_T wchar_t
+# define DIRECTIVE wchar_t_directive
+# define DIRECTIVES wchar_t_directives
+# define PRINTF_PARSE wprintf_parse
+# define USE_SNPRINTF 1
+# if HAVE_DECL__SNWPRINTF
+   /* On Windows, the function swprintf() has a different signature than
+      on Unix; we use the _snwprintf() function instead.  */
+#  define SNPRINTF _snwprintf
+# else
+   /* Unix.  */
+#  define SNPRINTF swprintf
+# endif
+#else
+# define VASNPRINTF vasnprintf
+# define CHAR_T char
+# define DIRECTIVE char_directive
+# define DIRECTIVES char_directives
+# define PRINTF_PARSE printf_parse
+# define USE_SNPRINTF (HAVE_DECL__SNPRINTF || HAVE_SNPRINTF)
+# if HAVE_DECL__SNPRINTF
+   /* Windows.  */
+#  define SNPRINTF _snprintf
+# else
+   /* Unix.  */
+#  define SNPRINTF snprintf
+# endif
+#endif
+
+CHAR_T *
+VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list args)
+{
+  DIRECTIVES d;
+  arguments a;
+
+  if (PRINTF_PARSE (format, &d, &a) < 0)
+    {
+      errno = EINVAL;
+      return NULL;
+    }
+
+#define CLEANUP() \
+  free (d.dir);								\
+  if (a.arg)								\
+    free (a.arg);
+
+  if (printf_fetchargs (args, &a) < 0)
+    {
+      CLEANUP ();
+      errno = EINVAL;
+      return NULL;
+    }
+
+  {
+    size_t buf_neededlength;
+    CHAR_T *buf;
+    CHAR_T *buf_malloced;
+    const CHAR_T *cp;
+    size_t i;
+    DIRECTIVE *dp;
+    /* Output string accumulator.  */
+    CHAR_T *result;
+    size_t allocated;
+    size_t length;
+
+    /* Allocate a small buffer that will hold a directive passed to
+       sprintf or snprintf.  */
+    buf_neededlength = 7 + d.max_width_length + d.max_precision_length + 6;
+#if HAVE_ALLOCA
+    if (buf_neededlength < 4000 / sizeof (CHAR_T))
+      {
+	buf = (CHAR_T *) alloca (buf_neededlength * sizeof (CHAR_T));
+	buf_malloced = NULL;
+      }
+    else
+#endif
+      {
+	if (SIZE_MAX / sizeof (CHAR_T) < buf_neededlength)
+	  goto out_of_memory_1;
+	buf = (CHAR_T *) malloc (buf_neededlength * sizeof (CHAR_T));
+	if (buf == NULL)
+	  goto out_of_memory_1;
+	buf_malloced = buf;
+      }
+
+    if (resultbuf != NULL)
+      {
+	result = resultbuf;
+	allocated = *lengthp;
+      }
+    else
+      {
+	result = NULL;
+	allocated = 0;
+      }
+    length = 0;
+    /* Invariants:
+       result is either == resultbuf or == NULL or malloc-allocated.
+       If length > 0, then result != NULL.  */
+
+    /* Ensures that allocated >= length + extra.  Aborts through a jump to
+       out_of_memory if size is too big.  */
+#define ENSURE_ALLOCATION(extra) \
+  {									     \
+    size_t needed = length + (extra);					     \
+    if (needed < length)						     \
+      goto out_of_memory;						     \
+    if (needed > allocated)						     \
+      {									     \
+	size_t memory_size;						     \
+	CHAR_T *memory;							     \
+									     \
+	allocated = (allocated > 0 ? 2 * allocated : 12);		     \
+	if (needed > allocated)						     \
+	  allocated = needed;						     \
+	if (SIZE_MAX / sizeof (CHAR_T) < allocated)			     \
+	  goto out_of_memory;						     \
+	memory_size = allocated * sizeof (CHAR_T);			     \
+	if (result == resultbuf || result == NULL)			     \
+	  memory = (CHAR_T *) malloc (memory_size);			     \
+	else								     \
+	  memory = (CHAR_T *) realloc (result, memory_size);		     \
+	if (memory == NULL)						     \
+	  goto out_of_memory;						     \
+	if (result == resultbuf && length > 0)				     \
+	  memcpy (memory, result, length * sizeof (CHAR_T));		     \
+	result = memory;						     \
+      }									     \
+  }
+
+    for (cp = format, i = 0, dp = &d.dir[0]; ; cp = dp->dir_end, i++, dp++)
+      {
+	if (cp != dp->dir_start)
+	  {
+	    size_t n = dp->dir_start - cp;
+
+	    ENSURE_ALLOCATION (n);
+	    memcpy (result + length, cp, n * sizeof (CHAR_T));
+	    length += n;
+	  }
+	if (i == d.count)
+	  break;
+
+	/* Execute a single directive.  */
+	if (dp->conversion == '%')
+	  {
+	    if (!(dp->arg_index == ARG_NONE))
+	      abort ();
+	    ENSURE_ALLOCATION (1);
+	    result[length] = '%';
+	    length += 1;
+	  }
+	else
+	  {
+	    if (!(dp->arg_index != ARG_NONE))
+	      abort ();
+
+	    if (dp->conversion == 'n')
+	      {
+		switch (a.arg[dp->arg_index].type)
+		  {
+		  case TYPE_COUNT_SCHAR_POINTER:
+		    *a.arg[dp->arg_index].a.a_count_schar_pointer = length;
+		    break;
+		  case TYPE_COUNT_SHORT_POINTER:
+		    *a.arg[dp->arg_index].a.a_count_short_pointer = length;
+		    break;
+		  case TYPE_COUNT_INT_POINTER:
+		    *a.arg[dp->arg_index].a.a_count_int_pointer = length;
+		    break;
+		  case TYPE_COUNT_LONGINT_POINTER:
+		    *a.arg[dp->arg_index].a.a_count_longint_pointer = length;
+		    break;
+#ifdef HAVE_LONG_LONG
+		  case TYPE_COUNT_LONGLONGINT_POINTER:
+		    *a.arg[dp->arg_index].a.a_count_longlongint_pointer = length;
+		    break;
+#endif
+		  default:
+		    abort ();
+		  }
+	      }
+	    else
+	      {
+		arg_type type = a.arg[dp->arg_index].type;
+		CHAR_T *p;
+		unsigned int prefix_count;
+		int prefixes[2];
+#if !USE_SNPRINTF
+		size_t tmp_length;
+		CHAR_T tmpbuf[700];
+		CHAR_T *tmp;
+
+		/* Allocate a temporary buffer of sufficient size for calling
+		   sprintf.  */
+		{
+		  size_t width;
+		  size_t precision;
+
+		  width = 0;
+		  if (dp->width_start != dp->width_end)
+		    {
+		      if (dp->width_arg_index != ARG_NONE)
+			{
+			  int arg;
+
+			  if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
+			    abort ();
+			  arg = a.arg[dp->width_arg_index].a.a_int;
+			  width = (arg < 0 ? (unsigned int) (-arg) : arg);
+			}
+		      else
+			{
+			  const CHAR_T *digitp = dp->width_start;
+
+			  do
+			    {
+			      size_t w_tmp = width * 10 + (*digitp++ - '0');
+			      if (SIZE_MAX / 10 < width || w_tmp < width)
+				goto out_of_memory;
+			      width = w_tmp;
+			    }
+			  while (digitp != dp->width_end);
+			}
+		    }
+
+		  precision = 6;
+		  if (dp->precision_start != dp->precision_end)
+		    {
+		      if (dp->precision_arg_index != ARG_NONE)
+			{
+			  int arg;
+
+			  if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
+			    abort ();
+			  arg = a.arg[dp->precision_arg_index].a.a_int;
+			  precision = (arg < 0 ? 0 : arg);
+			}
+		      else
+			{
+			  const CHAR_T *digitp = dp->precision_start + 1;
+
+			  precision = 0;
+			  while (digitp != dp->precision_end)
+			    {
+			      size_t p1 = 10 * precision + (*digitp++ - '0');
+			      precision = ((SIZE_MAX / 10 < precision
+					    || p1 < precision)
+					   ? SIZE_MAX : p1);
+			    }
+			}
+		    }
+
+		  switch (dp->conversion)
+		    {
+
+		    case 'd': case 'i': case 'u':
+# ifdef HAVE_LONG_LONG
+		      if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT)
+			tmp_length =
+			  (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
+					  * 0.30103 /* binary -> decimal */
+					 )
+			  + 1; /* turn floor into ceil */
+		      else
+# endif
+		      if (type == TYPE_LONGINT || type == TYPE_ULONGINT)
+			tmp_length =
+			  (unsigned int) (sizeof (unsigned long) * CHAR_BIT
+					  * 0.30103 /* binary -> decimal */
+					 )
+			  + 1; /* turn floor into ceil */
+		      else
+			tmp_length =
+			  (unsigned int) (sizeof (unsigned int) * CHAR_BIT
+					  * 0.30103 /* binary -> decimal */
+					 )
+			  + 1; /* turn floor into ceil */
+		      if (tmp_length < precision)
+			tmp_length = precision;
+		      /* Multiply by 2, as an estimate for FLAG_GROUP.  */
+		      /* Add 1, to account for a leading sign.  */
+		      tmp_length = (tmp_length < SIZE_MAX / 2
+				    ? 2 * tmp_length + 1
+				    : SIZE_MAX);
+		      break;
+
+		    case 'o':
+# ifdef HAVE_LONG_LONG
+		      if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT)
+			tmp_length =
+			  (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
+					  * 0.333334 /* binary -> octal */
+					 )
+			  + 1; /* turn floor into ceil */
+		      else
+# endif
+		      if (type == TYPE_LONGINT || type == TYPE_ULONGINT)
+			tmp_length =
+			  (unsigned int) (sizeof (unsigned long) * CHAR_BIT
+					  * 0.333334 /* binary -> octal */
+					 )
+			  + 1; /* turn floor into ceil */
+		      else
+			tmp_length =
+			  (unsigned int) (sizeof (unsigned int) * CHAR_BIT
+					  * 0.333334 /* binary -> octal */
+					 )
+			  + 1; /* turn floor into ceil */
+		      if (tmp_length < precision)
+			tmp_length = precision;
+		      /* Add 1, to account for a leading sign.  */
+		      tmp_length += (tmp_length < SIZE_MAX);
+		      break;
+
+		    case 'x': case 'X':
+# ifdef HAVE_LONG_LONG
+		      if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT)
+			tmp_length =
+			  (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
+					  * 0.25 /* binary -> hexadecimal */
+					 )
+			  + 1; /* turn floor into ceil */
+		      else
+# endif
+		      if (type == TYPE_LONGINT || type == TYPE_ULONGINT)
+			tmp_length =
+			  (unsigned int) (sizeof (unsigned long) * CHAR_BIT
+					  * 0.25 /* binary -> hexadecimal */
+					 )
+			  + 1; /* turn floor into ceil */
+		      else
+			tmp_length =
+			  (unsigned int) (sizeof (unsigned int) * CHAR_BIT
+					  * 0.25 /* binary -> hexadecimal */
+					 )
+			  + 1; /* turn floor into ceil */
+		      if (tmp_length < precision)
+			tmp_length = precision;
+		      /* Add 2, to account for a leading sign or alternate form.  */
+		      if (tmp_length <= SIZE_MAX / 2)
+			tmp_length *= 2;
+		      break;
+
+		    case 'f': case 'F':
+# ifdef HAVE_LONG_DOUBLE
+		      if (type == TYPE_LONGDOUBLE)
+			tmp_length =
+			  (unsigned int) (LDBL_MAX_EXP
+					  * 0.30103 /* binary -> decimal */
+					  * 2 /* estimate for FLAG_GROUP */
+					 )
+			  + 1 /* turn floor into ceil */
+			  + 10; /* sign, decimal point etc. */
+		      else
+# endif
+			tmp_length =
+			  (unsigned int) (DBL_MAX_EXP
+					  * 0.30103 /* binary -> decimal */
+					  * 2 /* estimate for FLAG_GROUP */
+					 )
+			  + 1 /* turn floor into ceil */
+			  + 10; /* sign, decimal point etc. */
+		      tmp_length += precision;
+		      if (tmp_length < precision)
+			goto out_of_memory;
+		      break;
+
+		    case 'e': case 'E': case 'g': case 'G':
+		    case 'a': case 'A':
+		      tmp_length =
+			12; /* sign, decimal point, exponent etc. */
+		      tmp_length += precision;
+		      if (tmp_length < precision)
+			goto out_of_memory;
+		      break;
+
+		    case 'c':
+# if defined HAVE_WINT_T && !WIDE_CHAR_VERSION
+		      if (type == TYPE_WIDE_CHAR)
+			tmp_length = MB_CUR_MAX;
+		      else
+# endif
+			tmp_length = 1;
+		      break;
+
+		    case 's':
+# ifdef HAVE_WCHAR_T
+		      if (type == TYPE_WIDE_STRING)
+			{
+			  tmp_length =
+			    local_wcslen (a.arg[dp->arg_index].a.a_wide_string);
+
+#  if !WIDE_CHAR_VERSION
+			  if (SIZE_MAX / MB_CUR_MAX < tmp_length)
+			    goto out_of_memory;
+			  tmp_length *= MB_CUR_MAX;
+#  endif
+			}
+		      else
+# endif
+			tmp_length = strlen (a.arg[dp->arg_index].a.a_string);
+		      break;
+
+		    case 'p':
+		      tmp_length =
+			(unsigned int) (sizeof (void *) * CHAR_BIT
+					* 0.25 /* binary -> hexadecimal */
+				       )
+			  + 1 /* turn floor into ceil */
+			  + 2; /* account for leading 0x */
+		      break;
+
+		    default:
+		      abort ();
+		    }
+
+		  if (tmp_length < width)
+		    tmp_length = width;
+
+		  tmp_length++; /* account for trailing NUL */
+		  if (!tmp_length)
+		    goto out_of_memory;
+		}
+
+		if (tmp_length <= sizeof (tmpbuf) / sizeof (CHAR_T))
+		  tmp = tmpbuf;
+		else
+		  {
+		    if (SIZE_MAX / sizeof (CHAR_T) < tmp_length)
+		      /* Overflow, would lead to out of memory.  */
+		      goto out_of_memory;
+		    tmp = (CHAR_T *) malloc (tmp_length * sizeof (CHAR_T));
+		    if (tmp == NULL)
+		      /* Out of memory.  */
+		      goto out_of_memory;
+		  }
+#endif
+
+		/* Construct the format string for calling snprintf or
+		   sprintf.  */
+		p = buf;
+		*p++ = '%';
+		if (dp->flags & FLAG_GROUP)
+		  *p++ = '\'';
+		if (dp->flags & FLAG_LEFT)
+		  *p++ = '-';
+		if (dp->flags & FLAG_SHOWSIGN)
+		  *p++ = '+';
+		if (dp->flags & FLAG_SPACE)
+		  *p++ = ' ';
+		if (dp->flags & FLAG_ALT)
+		  *p++ = '#';
+		if (dp->flags & FLAG_ZERO)
+		  *p++ = '0';
+		if (dp->width_start != dp->width_end)
+		  {
+		    size_t n = dp->width_end - dp->width_start;
+		    memcpy (p, dp->width_start, n * sizeof (CHAR_T));
+		    p += n;
+		  }
+		if (dp->precision_start != dp->precision_end)
+		  {
+		    size_t n = dp->precision_end - dp->precision_start;
+		    memcpy (p, dp->precision_start, n * sizeof (CHAR_T));
+		    p += n;
+		  }
+
+		switch (type)
+		  {
+#ifdef HAVE_LONG_LONG
+		  case TYPE_LONGLONGINT:
+		  case TYPE_ULONGLONGINT:
+		    *p++ = 'l';
+		    /*FALLTHROUGH*/
+#endif
+		  case TYPE_LONGINT:
+		  case TYPE_ULONGINT:
+#ifdef HAVE_WINT_T
+		  case TYPE_WIDE_CHAR:
+#endif
+#ifdef HAVE_WCHAR_T
+		  case TYPE_WIDE_STRING:
+#endif
+		    *p++ = 'l';
+		    break;
+#ifdef HAVE_LONG_DOUBLE
+		  case TYPE_LONGDOUBLE:
+		    *p++ = 'L';
+		    break;
+#endif
+		  default:
+		    break;
+		  }
+		*p = dp->conversion;
+#if USE_SNPRINTF
+		p[1] = '%';
+		p[2] = 'n';
+		p[3] = '\0';
+#else
+		p[1] = '\0';
+#endif
+
+		/* Construct the arguments for calling snprintf or sprintf.  */
+		prefix_count = 0;
+		if (dp->width_arg_index != ARG_NONE)
+		  {
+		    if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
+		      abort ();
+		    prefixes[prefix_count++] = a.arg[dp->width_arg_index].a.a_int;
+		  }
+		if (dp->precision_arg_index != ARG_NONE)
+		  {
+		    if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
+		      abort ();
+		    prefixes[prefix_count++] = a.arg[dp->precision_arg_index].a.a_int;
+		  }
+
+#if USE_SNPRINTF
+		/* Prepare checking whether snprintf returns the count
+		   via %n.  */
+		ENSURE_ALLOCATION (1);
+		result[length] = '\0';
+#endif
+
+		for (;;)
+		  {
+		    size_t maxlen;
+		    int count;
+		    int retcount;
+
+		    maxlen = allocated - length;
+		    count = -1;
+		    retcount = 0;
+
+#if USE_SNPRINTF
+# define SNPRINTF_BUF(arg) \
+		    switch (prefix_count)				    \
+		      {							    \
+		      case 0:						    \
+			retcount = SNPRINTF (result + length, maxlen, buf,  \
+					     arg, &count);		    \
+			break;						    \
+		      case 1:						    \
+			retcount = SNPRINTF (result + length, maxlen, buf,  \
+					     prefixes[0], arg, &count);	    \
+			break;						    \
+		      case 2:						    \
+			retcount = SNPRINTF (result + length, maxlen, buf,  \
+					     prefixes[0], prefixes[1], arg, \
+					     &count);			    \
+			break;						    \
+		      default:						    \
+			abort ();					    \
+		      }
+#else
+# define SNPRINTF_BUF(arg) \
+		    switch (prefix_count)				    \
+		      {							    \
+		      case 0:						    \
+			count = sprintf (tmp, buf, arg);		    \
+			break;						    \
+		      case 1:						    \
+			count = sprintf (tmp, buf, prefixes[0], arg);	    \
+			break;						    \
+		      case 2:						    \
+			count = sprintf (tmp, buf, prefixes[0], prefixes[1],\
+					 arg);				    \
+			break;						    \
+		      default:						    \
+			abort ();					    \
+		      }
+#endif
+
+		    switch (type)
+		      {
+		      case TYPE_SCHAR:
+			{
+			  int arg = a.arg[dp->arg_index].a.a_schar;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+		      case TYPE_UCHAR:
+			{
+			  unsigned int arg = a.arg[dp->arg_index].a.a_uchar;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+		      case TYPE_SHORT:
+			{
+			  int arg = a.arg[dp->arg_index].a.a_short;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+		      case TYPE_USHORT:
+			{
+			  unsigned int arg = a.arg[dp->arg_index].a.a_ushort;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+		      case TYPE_INT:
+			{
+			  int arg = a.arg[dp->arg_index].a.a_int;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+		      case TYPE_UINT:
+			{
+			  unsigned int arg = a.arg[dp->arg_index].a.a_uint;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+		      case TYPE_LONGINT:
+			{
+			  long int arg = a.arg[dp->arg_index].a.a_longint;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+		      case TYPE_ULONGINT:
+			{
+			  unsigned long int arg = a.arg[dp->arg_index].a.a_ulongint;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+#ifdef HAVE_LONG_LONG
+		      case TYPE_LONGLONGINT:
+			{
+			  long long int arg = a.arg[dp->arg_index].a.a_longlongint;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+		      case TYPE_ULONGLONGINT:
+			{
+			  unsigned long long int arg = a.arg[dp->arg_index].a.a_ulonglongint;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+#endif
+		      case TYPE_DOUBLE:
+			{
+			  double arg = a.arg[dp->arg_index].a.a_double;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+#ifdef HAVE_LONG_DOUBLE
+		      case TYPE_LONGDOUBLE:
+			{
+			  long double arg = a.arg[dp->arg_index].a.a_longdouble;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+#endif
+		      case TYPE_CHAR:
+			{
+			  int arg = a.arg[dp->arg_index].a.a_char;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+#ifdef HAVE_WINT_T
+		      case TYPE_WIDE_CHAR:
+			{
+			  wint_t arg = a.arg[dp->arg_index].a.a_wide_char;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+#endif
+		      case TYPE_STRING:
+			{
+			  const char *arg = a.arg[dp->arg_index].a.a_string;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+#ifdef HAVE_WCHAR_T
+		      case TYPE_WIDE_STRING:
+			{
+			  const wchar_t *arg = a.arg[dp->arg_index].a.a_wide_string;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+#endif
+		      case TYPE_POINTER:
+			{
+			  void *arg = a.arg[dp->arg_index].a.a_pointer;
+			  SNPRINTF_BUF (arg);
+			}
+			break;
+		      default:
+			abort ();
+		      }
+
+#if USE_SNPRINTF
+		    /* Portability: Not all implementations of snprintf()
+		       are ISO C 99 compliant.  Determine the number of
+		       bytes that snprintf() has produced or would have
+		       produced.  */
+		    if (count >= 0)
+		      {
+			/* Verify that snprintf() has NUL-terminated its
+			   result.  */
+			if (count < maxlen && result[length + count] != '\0')
+			  abort ();
+			/* Portability hack.  */
+			if (retcount > count)
+			  count = retcount;
+		      }
+		    else
+		      {
+			/* snprintf() doesn't understand the '%n'
+			   directive.  */
+			if (p[1] != '\0')
+			  {
+			    /* Don't use the '%n' directive; instead, look
+			       at the snprintf() return value.  */
+			    p[1] = '\0';
+			    continue;
+			  }
+			else
+			  {
+			    /* Look at the snprintf() return value.  */
+			    if (retcount < 0)
+			      {
+				/* HP-UX 10.20 snprintf() is doubly deficient:
+				   It doesn't understand the '%n' directive,
+				   *and* it returns -1 (rather than the length
+				   that would have been required) when the
+				   buffer is too small.  */
+				size_t bigger_need =
+				  (allocated > 12 ? allocated : 12);
+				ENSURE_ALLOCATION (bigger_need);
+				continue;
+			      }
+			    else
+			      count = retcount;
+			  }
+		      }
+#endif
+
+		    /* Attempt to handle failure.  */
+		    if (count < 0)
+		      {
+			if (!(result == resultbuf || result == NULL))
+			  free (result);
+			if (buf_malloced != NULL)
+			  free (buf_malloced);
+			CLEANUP ();
+			errno = EINVAL;
+			return NULL;
+		      }
+
+#if !USE_SNPRINTF
+		    if (count >= tmp_length)
+		      /* tmp_length was incorrectly calculated - fix the
+			 code above!  */
+		      abort ();
+#endif
+
+		    /* Make room for the result.  */
+		    if (count >= maxlen)
+		      {
+			/* Need at least count bytes.  But allocate
+			   proportionally, to avoid looping eternally if
+			   snprintf() reports a too small count.  */
+			ENSURE_ALLOCATION (count < allocated
+					   ? allocated : count);
+#if USE_SNPRINTF
+			continue;
+#endif
+		      }
+
+#if USE_SNPRINTF
+		    /* The snprintf() result did fit.  */
+#else
+		    /* Append the sprintf() result.  */
+		    memcpy (result + length, tmp, count * sizeof (CHAR_T));
+		    if (tmp != tmpbuf)
+		      free (tmp);
+#endif
+
+		    length += count;
+		    break;
+		  }
+	      }
+	  }
+      }
+
+    /* Add the final NUL.  */
+    ENSURE_ALLOCATION (1);
+    result[length] = '\0';
+
+    if (result != resultbuf && length + 1 < allocated)
+      {
+	/* Shrink the allocated memory if possible.  */
+	CHAR_T *memory;
+
+	memory = (CHAR_T *) realloc (result, (length + 1) * sizeof (CHAR_T));
+	if (memory != NULL)
+	  result = memory;
+      }
+
+    if (buf_malloced != NULL)
+      free (buf_malloced);
+    CLEANUP ();
+    *lengthp = length;
+    if (length > INT_MAX)
+      goto length_overflow;
+    return result;
+
+  length_overflow:
+    /* We could produce such a big string, but its length doesn't fit into
+       an 'int'.  POSIX says that snprintf() fails with errno = EOVERFLOW in
+       this case.  */
+    if (result != resultbuf)
+      free (result);
+    errno = EOVERFLOW;
+    return NULL;
+
+  out_of_memory:
+    if (!(result == resultbuf || result == NULL))
+      free (result);
+    if (buf_malloced != NULL)
+      free (buf_malloced);
+  out_of_memory_1:
+    CLEANUP ();
+    errno = ENOMEM;
+    return NULL;
+  }
+}
+
+#undef SNPRINTF
+#undef USE_SNPRINTF
+#undef PRINTF_PARSE
+#undef DIRECTIVES
+#undef DIRECTIVE
+#undef CHAR_T
+#undef VASNPRINTF