* Makefile (subdirs): Replace stdio with stdio-common and $(stdio).

	* configure.in: Grok arg --enable-libio.
	($stdio = libio): Define USE_IN_LIBIO.
	* config.h.in (USE_IN_LIBIO): Add #undef.
	* config.make.in (stdio): New variable, set by configure.
	* Makeconfig (stdio): New variable.
	* stdio.h [USE_IN_LIBIO]: Include libio/stdio.h instead of
	stdio/stdio.h.
	* stdio-common/Makefile: New file.
	* stdio/Makefile: Half the contents moved to stdio-common/Makefile.
	* stdio/_itoa.c: Moved to stdio-common.
	* stdio/_itoa.h: Moved to stdio-common.
	* stdio/asprintf.c: Moved to stdio-common.
	* stdio/bug1.c: Moved to stdio-common.
	* stdio/bug1.input: Moved to stdio-common.
	* stdio/bug2.c: Moved to stdio-common.
	* stdio/bug3.c: Moved to stdio-common.
	* stdio/bug4.c: Moved to stdio-common.
	* stdio/bug5.c: Moved to stdio-common.
	* stdio/bug6.c: Moved to stdio-common.
	* stdio/bug6.input: Moved to stdio-common.
	* stdio/bug7.c: Moved to stdio-common.
	* stdio/dprintf.c: Moved to stdio-common.
	* stdio/errnobug.c: Moved to stdio-common.
	* stdio/getline.c: Moved to stdio-common.
	* stdio/getw.c: Moved to stdio-common.
	* stdio/perror.c: Moved to stdio-common.
	* stdio/printf-parse.h: Moved to stdio-common.
	* stdio/printf-prs.c: Moved to stdio-common.
	* stdio/printf.c: Moved to stdio-common.
	* stdio/printf.h: Moved to stdio-common.
	* stdio/printf_fp.c: Moved to stdio-common.
	* stdio/psignal.c: Moved to stdio-common.
	* stdio/putw.c: Moved to stdio-common.
	* stdio/reg-printf.c: Moved to stdio-common.
	* stdio/scanf.c: Moved to stdio-common.
	* stdio/snprintf.c: Moved to stdio-common.
	* stdio/sprintf.c: Moved to stdio-common.
	* stdio/sscanf.c: Moved to stdio-common.
	* stdio/tempnam.c: Moved to stdio-common.
	* stdio/temptest.c: Moved to stdio-common.
	* stdio/test-fseek.c: Moved to stdio-common.
	* stdio/test-fwrite.c: Moved to stdio-common.
	* stdio/test-popen.c: Moved to stdio-common.
	* stdio/test_rdwr.c: Moved to stdio-common.
	* stdio/tmpfile.c: Moved to stdio-common.
	* stdio/tmpnam.c: Moved to stdio-common.
	* stdio/tst-fileno.c: Moved to stdio-common.
	* stdio/tst-printf.c: Moved to stdio-common.
	* stdio/tstgetln.c: Moved to stdio-common.
	* stdio/tstgetln.input: Moved to stdio-common.
	* stdio/tstscanf.c: Moved to stdio-common.
	* stdio/tstscanf.input: Moved to stdio-common.
	* stdio/vfprintf.c: Moved to stdio-common.
	* stdio/vfscanf.c: Moved to stdio-common.
	* stdio/vprintf.c: Moved to stdio-common.
	* stdio/xbug.c: Moved to stdio-common.
	* sysdeps/generic/Makefile (siglist.c rules): Do this in subdir
	stdio-common instead of stdio.
	* sysdeps/unix/Makefile (errlist.c rules): Likewise.
	* stdio-common/asprintf.c [USE_IN_LIBIO]: Call libio primitive
	function.
	* stdio-common/dprintf.c: Likewise.
	* stdio-common/printf.c: Likewise.
	* stdio-common/scanf.c: Likewise.
	* stdio-common/snprintf.c: Likewise.
	* stdio-common/sprintf.c: Likewise.
	* stdio-common/sscanf.c: Likewise.
	* stdio-common/vprintf.c: Likewise.

	* Makerules: Include $(+depfiles) directly instead of generating
	depend-$(subdir).
	(depend-$(subdir)): Target removed.
	(common-clean): Don't remove depend-$(subdir).

1 files changed, 858 insertions, 0 deletions

diff --git a/stdio-common/vfprintf.c b/stdio-common/vfprintf.c
new file mode 100644
index 0000000000..63a5148463
--- /dev/null
+++ b/stdio-common/vfprintf.c
@@ -0,0 +1,858 @@
+/* Copyright (C) 1991, 1992, 1993, 1994, 1995 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ctype.h>
+#include <errno.h>
+#include <float.h>
+#include <limits.h>
+#include <math.h>
+#include <printf.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <printf.h>
+#include <stddef.h>
+#include "_itoa.h"
+#include "../locale/localeinfo.h"
+
+/* Include the shared code for parsing the format string.  */
+#include "printf-parse.h"
+
+
+/* This function from the GNU C library is also used in libio.
+   To compile for use in libio, compile with -DUSE_IN_LIBIO.  */
+
+#ifdef USE_IN_LIBIO
+/* This code is for use in libio.  */
+#include <libioP.h>
+#define PUT(f, s, n)	_IO_sputn (f, s, n)
+#define PAD(padchar)							      \
+  if (specs[cnt].info.width > 0)					      \
+    done += _IO_padn (s, padchar, specs[cnt].info.width)
+#define PUTC(c, f)	_IO_putc (c, f)
+#define vfprintf	_IO_vfprintf
+#define size_t		_IO_size_t
+#define FILE		_IO_FILE
+#define va_list		_IO_va_list
+#undef	BUFSIZ
+#define BUFSIZ		_IO_BUFSIZ
+#define ARGCHECK(s, format)						      \
+  do									      \
+    {									      \
+      /* Check file argument for consistence.  */			      \
+      CHECK_FILE (s, -1);						      \
+      if (s->_flags & _IO_NO_WRITES || format == NULL)			      \
+	{								      \
+	  MAYBE_SET_EINVAL;						      \
+	  return -1;							      \
+	}								      \
+    } while (0)
+#define UNBUFFERED_P(s)	((s)->_IO_file_flags & _IO_UNBUFFERED)
+#else /* ! USE_IN_LIBIO */
+/* This code is for use in the GNU C library.  */
+#include <stdio.h>
+#define PUTC(c, f)	putc (c, f)
+#define PUT(f, s, n)	fwrite (s, 1, n, f)
+ssize_t __printf_pad __P ((FILE *, char pad, size_t n));
+#define PAD(padchar)							      \
+  if (specs[cnt].info.width > 0)					      \
+    { if (__printf_pad (s, padchar, specs[cnt].info.width) == -1)	      \
+	return -1; else done += specs[cnt].info.width; }
+#define ARGCHECK(s, format) \
+  do									      \
+    {									      \
+      /* Check file argument for consistence.  */			      \
+      if (!__validfp(s) || !s->__mode.__write || format == NULL)	      \
+	{								      \
+	  errno = EINVAL;						      \
+	  return -1;							      \
+	}								      \
+      if (!s->__seen)							      \
+	{								      \
+	  if (__flshfp (s, EOF) == EOF)					      \
+	    return -1;							      \
+	}								      \
+    } while (0)
+#define UNBUFFERED_P(s)	((s)->__buffer == NULL)
+#endif /* USE_IN_LIBIO */
+
+
+#define	outchar(x)							      \
+  do									      \
+    {									      \
+      register const int outc = (x);					      \
+      if (putc (outc, s) == EOF)					      \
+	return -1;							      \
+      else								      \
+	++done;								      \
+    } while (0)
+
+#define outstring(string, len)						      \
+  do									      \
+    {									      \
+      if (len > 20)							      \
+	{								      \
+	  if (PUT (s, string, len) != len)				      \
+	    return -1;							      \
+	  done += len;							      \
+	}								      \
+      else								      \
+	{								      \
+	  register const char *cp = string;				      \
+	  register int l = len;						      \
+	  while (l-- > 0)						      \
+	    outchar (*cp++);						      \
+	}								      \
+    } while (0)
+
+/* Helper function to provide temporary buffering for unbuffered streams.  */
+static int buffered_vfprintf __P ((FILE *stream, const char *fmt, va_list));
+
+static printf_function printf_unknown;
+
+extern printf_function **__printf_function_table;
+
+static char *group_number __P ((char *, char *, const char *, wchar_t));
+
+
+int
+vfprintf (s, format, ap)
+    register FILE *s;
+    const char *format;
+    va_list ap;
+{
+  /* The character used as thousands separator.  */
+  wchar_t thousands_sep;
+
+  /* The string describing the size of groups of digits.  */
+  const char *grouping;
+
+  /* Array with information about the needed arguments.  This has to be
+     dynamically extendable.  */
+  size_t nspecs;
+  size_t nspecs_max;
+  struct printf_spec *specs;
+
+  /* The number of arguments the format string requests.  This will
+     determine the size of the array needed to store the argument
+     attributes.  */
+  size_t nargs;
+  int *args_type;
+  union printf_arg *args_value;
+
+  /* Positional parameters refer to arguments directly.  This could also
+     determine the maximum number of arguments.  Track the maximum number.  */
+  size_t max_ref_arg;
+
+  /* End of leading constant string.  */
+  const char *lead_str_end;
+
+  /* Number of characters written.  */
+  register size_t done = 0;
+
+  /* Running pointer through format string.  */
+  const char *f;
+
+  /* Just a counter.  */
+  int cnt;
+
+  ARGCHECK (s, format);
+
+  if (UNBUFFERED_P (s))
+    /* Use a helper function which will allocate a local temporary buffer
+       for the stream and then call us again.  */
+    return buffered_vfprintf (s, format, ap);
+
+  /* Reset multibyte characters to their initial state.  */
+  (void) mblen ((char *) NULL, 0);
+
+  /* Figure out the thousands separator character.  */
+  if (mbtowc (&thousands_sep, _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP),
+              strlen (_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP))) <= 0)
+    thousands_sep = (wchar_t) *_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
+  grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
+  if (*grouping == '\0' || *grouping == CHAR_MAX || thousands_sep == L'\0')
+    grouping = NULL;
+
+  nspecs_max = 32;		/* A more or less arbitrary start value.  */
+  specs = alloca (nspecs_max * sizeof (struct printf_spec));
+  nspecs = 0;
+  nargs = 0;
+  max_ref_arg = 0;
+
+  /* Find the first format specifier.  */
+  lead_str_end = find_spec (format);
+
+  for (f = lead_str_end; *f != '\0'; f = specs[nspecs++].next_fmt)
+    {
+      if (nspecs >= nspecs_max)
+	{
+	  /* Extend the array of format specifiers.  */
+	  struct printf_spec *old = specs;
+
+	  nspecs_max *= 2;
+	  specs = alloca (nspecs_max * sizeof (struct printf_spec));
+	  if (specs == &old[nspecs])
+	    /* Stack grows up, OLD was the last thing allocated; extend it.  */
+	    nspecs_max += nspecs_max / 2;
+	  else
+	    {
+	      /* Copy the old array's elements to the new space.  */
+	      memcpy (specs, old, nspecs * sizeof (struct printf_spec));
+	      if (old == &specs[nspecs])
+		/* Stack grows down, OLD was just below the new SPECS.
+		   We can use that space when the new space runs out.  */
+		nspecs_max += nspecs_max / 2;
+	    }
+	}
+
+      /* Parse the format specifier.  */
+      nargs += parse_one_spec (f, nargs, &specs[nspecs], &max_ref_arg);
+    }
+
+  /* Determine the number of arguments the format string consumes.  */
+  nargs = MAX (nargs, max_ref_arg);
+
+  /* Allocate memory for the argument descriptions.  */
+  args_type = alloca (nargs * sizeof (int));
+  args_value = alloca (nargs * sizeof (union printf_arg));
+
+  /* XXX Could do sanity check here:
+     Initialize args_type elts to zero.
+     If any is still zero after this loop, format is invalid.  */
+
+  /* Fill in the types of all the arguments.  */
+  for (cnt = 0; cnt < nspecs; ++cnt)
+    {
+      /* If the width is determined by an argument this is an int.  */ 
+      if (specs[cnt].width_arg != -1)
+	args_type[specs[cnt].width_arg] = PA_INT;
+
+      /* If the precision is determined by an argument this is an int.  */ 
+      if (specs[cnt].prec_arg != -1)
+	args_type[specs[cnt].prec_arg] = PA_INT;
+
+      switch (specs[cnt].ndata_args)
+	{
+	case 0:			/* No arguments.  */
+	  break;
+	case 1:			/* One argument; we already have the type.  */
+	  args_type[specs[cnt].data_arg] = specs[cnt].data_arg_type;
+	  break;
+	default:
+	  /* We have more than one argument for this format spec.  We must
+	     call the arginfo function again to determine all the types.  */
+	  (void) (*__printf_arginfo_table[specs[cnt].info.spec])
+	    (&specs[cnt].info,
+	     specs[cnt].ndata_args, &args_type[specs[cnt].data_arg]);
+	  break;
+	}
+    }
+
+  /* Now we know all the types and the order.  Fill in the argument values.  */
+  for (cnt = 0; cnt < nargs; ++cnt)
+    switch (args_type[cnt])
+      {
+#define T(tag, mem, type)						      \
+      case tag:								      \
+	args_value[cnt].mem = va_arg (ap, type);			      \
+	break
+
+	T (PA_CHAR, pa_char, int); /* Promoted.  */
+	T (PA_INT|PA_FLAG_SHORT, pa_short_int, int); /* Promoted.  */
+	T (PA_INT, pa_int, int);
+	T (PA_INT|PA_FLAG_LONG, pa_long_int, long int);
+	T (PA_INT|PA_FLAG_LONG_LONG, pa_long_long_int, long long int);
+	T (PA_FLOAT, pa_float, double);	/* Promoted.  */
+	T (PA_DOUBLE, pa_double, double);
+	T (PA_DOUBLE|PA_FLAG_LONG_DOUBLE, pa_long_double, long double);
+	T (PA_STRING, pa_string, const char *);
+	T (PA_POINTER, pa_pointer, void *);
+#undef T
+      default:
+	if ((args_type[cnt] & PA_FLAG_PTR) != 0)
+	  args_value[cnt].pa_pointer = va_arg (ap, void *);
+	break;
+      }
+
+  /* Write the literal text before the first format.  */
+  outstring (format, lead_str_end - format);
+
+  /* Now walk through all format specifiers and process them.  */
+  for (cnt = 0; cnt < nspecs; ++cnt)
+    {
+      printf_function *function; /* Auxiliary function to do output.  */
+      int is_neg;		/* Decimal integer is negative.  */
+      int base;			/* Base of a number to be written.  */
+      unsigned long long int num; /* Integral number to be written.  */
+      const char *str;		/* String to be written.  */
+      char errorbuf[1024];      /* Buffer sometimes used by %m.  */
+
+      if (specs[cnt].width_arg != -1)
+	{
+	  /* Extract the field width from an argument.  */
+	  specs[cnt].info.width = args_value[specs[cnt].width_arg].pa_int;
+
+	  if (specs[cnt].info.width < 0)
+	    /* If the width value is negative left justification is selected
+	       and the value is taken as being positive.  */
+	    {
+	      specs[cnt].info.width = -specs[cnt].info.width;
+	      specs[cnt].info.left = 1;
+	    }
+	}
+
+      if (specs[cnt].prec_arg != -1)
+	{
+	  /* Extract the precision from an argument.  */
+	  specs[cnt].info.prec = args_value[specs[cnt].prec_arg].pa_int;
+
+	  if (specs[cnt].info.prec < 0)
+	    /* If the precision is negative the precision is omitted.  */
+	    specs[cnt].info.prec = -1;
+	}
+
+      /* Check for a user-defined handler for this spec.  */
+      function = (__printf_function_table == NULL ? NULL :
+                  __printf_function_table[specs[cnt].info.spec]);
+
+      if (function != NULL)
+      use_function:		/* Built-in formats with helpers use this.  */
+	{
+	  int function_done;
+	  unsigned int i;
+	  const void *ptr[specs[cnt].ndata_args];
+
+	  /* Fill in an array of pointers to the argument values.  */
+	  for (i = 0; i < specs[cnt].ndata_args; ++i)
+	    ptr[i] = &args_value[specs[cnt].data_arg + i];
+
+	  /* Call the function.  */
+	  function_done = (*function) (s, &specs[cnt].info, ptr);
+
+	  /* If an error occured don't do any further work.  */
+	  if (function_done < 0)
+	    return -1;
+
+	  done += function_done;
+	}
+      else
+	switch (specs[cnt].info.spec)
+	  {
+	  case '%':
+	    /* Write a literal "%".  */
+	    outchar ('%');
+	    break;
+	  case 'i':
+	  case 'd':
+	    {
+	      long long int signed_num;
+
+	      /* Decimal integer.  */
+	      base = 10;
+	      if (specs[cnt].info.is_longlong)
+		signed_num = args_value[specs[cnt].data_arg].pa_long_long_int;
+	      else if (specs[cnt].info.is_long)
+		signed_num = args_value[specs[cnt].data_arg].pa_long_int;
+	      else if (!specs[cnt].info.is_short)
+		signed_num = args_value[specs[cnt].data_arg].pa_int;
+	      else
+		signed_num = args_value[specs[cnt].data_arg].pa_short_int;
+
+	      is_neg = signed_num < 0;
+	      num = is_neg ? (- signed_num) : signed_num;
+	      goto number;
+	    }
+
+	  case 'u':
+	    /* Decimal unsigned integer.  */
+            base = 10;
+            goto unsigned_number;
+
+	  case 'o':
+            /* Octal unsigned integer.  */
+            base = 8;
+            goto unsigned_number;
+
+          case 'X':
+            /* Hexadecimal unsigned integer.  */
+          case 'x':
+            /* Hex with lower-case digits.  */
+            base = 16;
+
+	  unsigned_number:
+            /* Unsigned number of base BASE.  */
+
+            if (specs[cnt].info.is_longlong)
+	      num = args_value[specs[cnt].data_arg].pa_u_long_long_int;
+            else if (specs[cnt].info.is_long)
+	      num = args_value[specs[cnt].data_arg].pa_u_long_int;
+            else if (!specs[cnt].info.is_short)
+	      num = args_value[specs[cnt].data_arg].pa_u_int;
+            else
+	      num = args_value[specs[cnt].data_arg].pa_u_short_int;
+
+            /* ANSI only specifies the `+' and
+               ` ' flags for signed conversions.  */
+            is_neg = 0;
+	    specs[cnt].info.showsign = 0;
+	    specs[cnt].info.space = 0;
+
+	  number:
+	    /* Number of base BASE.  */
+            {
+              char work[BUFSIZ];
+              char *const workend = &work[sizeof(work) - 1];
+              register char *w;
+
+              /* Supply a default precision if none was given.  */
+              if (specs[cnt].info.prec == -1)
+                specs[cnt].info.prec = 1;
+
+              /* Put the number in WORK.  */
+              w = _itoa (num, workend + 1, base, specs[cnt].info.spec == 'X');
+	      w -= 1;
+              if (specs[cnt].info.group && grouping)
+                w = group_number (w, workend, grouping, thousands_sep);
+              specs[cnt].info.width -= workend - w;
+              specs[cnt].info.prec -= workend - w;
+
+              if (num != 0 && specs[cnt].info.alt && base == 8
+		  && specs[cnt].info.prec <= 0)
+                {
+		  /* Add octal marker.  */
+                  *w-- = '0';
+                  --specs[cnt].info.width;
+                }
+
+              if (specs[cnt].info.prec > 0)
+                {
+		  /* Add zeros to the precision.  */
+                  specs[cnt].info.width -= specs[cnt].info.prec;
+                  while (specs[cnt].info.prec-- > 0)
+                    *w-- = '0';
+                }
+
+              if (num != 0 && specs[cnt].info.alt && base == 16)
+		/* Account for 0X hex marker.  */
+                specs[cnt].info.width -= 2;
+
+              if (is_neg || specs[cnt].info.showsign || specs[cnt].info.space)
+                --specs[cnt].info.width;
+
+              if (!specs[cnt].info.left && specs[cnt].info.pad == ' ')
+                PAD (' ');
+
+              if (is_neg)
+                outchar ('-');
+              else if (specs[cnt].info.showsign)
+                outchar ('+');
+              else if (specs[cnt].info.space)
+                outchar (' ');
+
+              if (num != 0 && specs[cnt].info.alt && base == 16)
+                {
+                  outchar ('0');
+                  outchar (specs[cnt].info.spec);
+                }
+
+              if (!specs[cnt].info.left && specs[cnt].info.pad == '0')
+                PAD ('0');
+
+              /* Write the number.  */
+              while (++w <= workend)
+                outchar (*w);
+
+              if (specs[cnt].info.left)
+                PAD (' ');
+            }
+            break;
+
+          case 'e':
+          case 'E':
+          case 'f':
+          case 'g':
+          case 'G':
+            {
+              /* Floating-point number.  This is handled by printf_fp.c.  */
+              extern printf_function __printf_fp;
+              function = __printf_fp;
+              goto use_function;
+            }
+
+          case 'c':
+            /* Character.  */
+            if (!specs[cnt].info.left)
+              {
+                --specs[cnt].info.width;
+                PAD (' ');
+              }
+            outchar ((unsigned char) args_value[specs[cnt].data_arg].pa_char);
+            if (specs[cnt].info.left)
+              PAD (' ');
+            break;
+
+          case 's':
+            {
+              static const char null[] = "(null)";
+              size_t len;
+
+	      str = args_value[specs[cnt].data_arg].pa_string;
+
+	    string:
+
+              if (str == NULL)
+		{
+		  /* Write "(null)" if there's space.  */
+		  if (specs[cnt].info.prec == -1
+		      || specs[cnt].info.prec >= (int) sizeof (null) - 1)
+		    {
+		      str = null;
+		      len = sizeof (null) - 1;
+		    }
+		  else
+		    {
+		      str = "";
+		      len = 0;
+		    }
+		}
+              else if (specs[cnt].info.prec != -1)
+		{
+		  /* Search for the end of the string, but don't search
+		     past the length specified by the precision.  */
+		  const char *end = memchr (str, '\0', specs[cnt].info.prec);
+		  if (end)
+		    len = end - str;
+		  else
+		    len = specs[cnt].info.prec;
+		}
+	      else
+		len = strlen (str);
+
+              specs[cnt].info.width -= len;
+
+              if (!specs[cnt].info.left)
+                PAD (' ');
+              outstring (str, len);
+              if (specs[cnt].info.left)
+                PAD (' ');
+            }
+            break;
+
+          case 'p':
+            /* Generic pointer.  */
+            {
+              const void *ptr;
+              ptr = args_value[specs[cnt].data_arg].pa_pointer;
+              if (ptr != NULL)
+                {
+                  /* If the pointer is not NULL, write it as a %#x spec.  */
+                  base = 16;
+                  num = (unsigned long long int) (unsigned long int) ptr;
+                  is_neg = 0;
+                  specs[cnt].info.alt = 1;
+		  specs[cnt].info.spec = 'x';
+                  specs[cnt].info.group = 0;
+                  goto number;
+                }
+              else
+                {
+                  /* Write "(nil)" for a nil pointer.  */
+                  str = "(nil)";
+		  /* Make sure the full string "(nil)" is printed.  */
+		  if (specs[cnt].info.prec < 5)
+		    specs[cnt].info.prec = 5;
+                  goto string;
+                }
+            }
+            break;
+
+          case 'n':
+            /* Answer the count of characters written.  */
+            if (specs[cnt].info.is_longlong)
+	      *(long long int *) 
+		args_value[specs[cnt].data_arg].pa_pointer = done;
+            else if (specs[cnt].info.is_long)
+	      *(long int *) 
+		args_value[specs[cnt].data_arg].pa_pointer = done;
+            else if (!specs[cnt].info.is_short)
+	      *(int *) 
+		args_value[specs[cnt].data_arg].pa_pointer = done;
+            else
+	      *(short int *) 
+		args_value[specs[cnt].data_arg].pa_pointer = done;
+            break;
+
+          case 'm':
+            {
+              extern char *_strerror_internal __P ((int, char *buf, size_t));
+              str = _strerror_internal (errno, errorbuf, sizeof errorbuf);
+              goto string;
+            }
+
+          default:
+            /* Unrecognized format specifier.  */
+            function = printf_unknown;
+            goto use_function;
+	  }
+
+      /* Write the following constant string.  */
+      outstring (specs[cnt].end_of_fmt,
+		 specs[cnt].next_fmt - specs[cnt].end_of_fmt);
+    }
+
+  return done;
+}
+
+
+/* Handle an unknown format specifier.  This prints out a canonicalized
+   representation of the format spec itself.  */
+
+static int
+printf_unknown (s, info, args)
+  FILE *s;
+  const struct printf_info *info;
+  const void **const args;
+{
+  int done = 0;
+  char work[BUFSIZ];
+  char *const workend = &work[sizeof(work) - 1];
+  register char *w;
+
+  outchar ('%');
+
+  if (info->alt)
+    outchar ('#');
+  if (info->group)
+    outchar ('\'');
+  if (info->showsign)
+    outchar ('+');
+  else if (info->space)
+    outchar (' ');
+  if (info->left)
+    outchar ('-');
+  if (info->pad == '0')
+    outchar ('0');
+
+  if (info->width != 0)
+    {
+      w = _itoa (info->width, workend + 1, 10, 0);
+      while (++w <= workend)
+	outchar (*w);
+    }
+
+  if (info->prec != -1)
+    {
+      outchar ('.');
+      w = _itoa (info->prec, workend + 1, 10, 0);
+      while (++w <= workend)
+	outchar (*w);
+    }
+
+  if (info->spec != '\0')
+    outchar (info->spec);
+
+  return done;
+}
+
+/* Group the digits according to the grouping rules of the current locale.
+   The interpretation of GROUPING is as in `struct lconv' from <locale.h>.  */
+
+static char *
+group_number (char *w, char *workend, const char *grouping,
+	      wchar_t thousands_sep)
+{
+  int len;
+  char *src, *s;
+
+  /* We treat all negative values like CHAR_MAX.  */
+
+  if (*grouping == CHAR_MAX || *grouping < 0)
+    /* No grouping should be done.  */
+    return w;
+
+  len = *grouping;
+
+  /* Copy existing string so that nothing gets overwritten.  */
+  src = (char *) alloca (workend - w);
+  memcpy (src, w + 1, workend - w);
+  s = &src[workend - w - 1];
+  w = workend;
+
+  /* Process all characters in the string.  */
+  while (s >= src)
+    {
+      *w-- = *s--;
+
+      if (--len == 0 && s >= src)
+	{
+	  /* A new group begins.  */
+	  *w-- = thousands_sep;
+
+	  len = *grouping++;
+	  if (*grouping == '\0')
+	    /* The previous grouping repeats ad infinitum.  */
+	    --grouping;
+	  else if (*grouping == CHAR_MAX || *grouping < 0)
+	    {
+	      /* No further grouping to be done.
+		 Copy the rest of the number.  */
+	      do
+		*w-- = *s--;
+	      while (s >= src);
+	      break;
+	    }
+	}
+    }
+  return w;
+}
+
+#ifdef USE_IN_LIBIO
+/* Helper "class" for `fprintf to unbuffered': creates a temporary buffer.  */
+struct helper_file
+  {
+    struct _IO_FILE_plus _f;
+    _IO_FILE *_put_stream;
+  };
+
+static int
+_IO_helper_overflow (s, c)
+  _IO_FILE *s;
+  int c;
+{
+  _IO_FILE *target = ((struct helper_file*) s)->_put_stream;
+  int used = s->_IO_write_ptr - s->_IO_write_base;
+  if (used)
+    {
+      _IO_size_t written = _IO_sputn (target, s->_IO_write_base, used);
+      s->_IO_write_ptr -= written;
+    }
+  return _IO_putc (c, s);
+}
+
+static const struct _IO_jump_t _IO_helper_jumps =
+  {
+    _IO_helper_overflow,
+    _IO_default_underflow,
+    _IO_default_xsputn,
+    _IO_default_xsgetn,
+    _IO_default_read,
+    _IO_default_write,
+    _IO_default_doallocate,
+    _IO_default_pbackfail,
+    _IO_default_setbuf,
+    _IO_default_sync,
+    _IO_default_finish,
+    _IO_default_close,
+    _IO_default_stat,
+    _IO_default_seek,
+    _IO_default_seekoff,
+    _IO_default_seekpos,
+    _IO_default_uflow
+  };
+
+static int
+buffered_vfprintf (s, format, args)
+  register _IO_FILE *s;
+  char const *format;
+  _IO_va_list args;
+{
+  char buf[_IO_BUFSIZ];
+  struct helper_file helper;
+  register _IO_FILE *hp = (_IO_FILE *) &helper;
+  int result, to_flush;
+
+  /* Initialize helper.  */
+  helper._put_stream = s;
+  hp->_IO_write_base = buf;
+  hp->_IO_write_ptr = buf;
+  hp->_IO_write_end = buf + sizeof buf;
+  hp->_IO_file_flags = _IO_MAGIC|_IO_NO_READS;
+  hp->_jumps = (struct _IO_jump_t *) &_IO_helper_jumps;
+  
+  /* Now print to helper instead.  */
+  result = _IO_vfprintf (hp, format, args);
+
+  /* Now flush anything from the helper to the S. */
+  if ((to_flush = hp->_IO_write_ptr - hp->_IO_write_base) > 0)
+    {
+      if (_IO_sputn (s, hp->_IO_write_base, to_flush) != to_flush)
+	return -1;
+    }
+
+  return result;
+}
+
+#else /* !USE_IN_LIBIO */
+
+static int
+buffered_vfprintf (s, format, args)
+  register FILE *s;
+  char const *format;
+  va_list args;
+{
+  char buf[BUFSIZ];
+  int result;
+
+  s->__bufp = s->__buffer = buf;
+  s->__bufsize = sizeof buf;
+  s->__put_limit = s->__buffer + s->__bufsize;
+  s->__get_limit = s->__buffer;
+
+  /* Now use buffer to print.  */
+  result = vfprintf (s, format, args);
+
+  if (fflush (s) == EOF)
+    result = -1;
+  s->__buffer = s->__bufp = s->__get_limit = s->__put_limit = NULL;
+  s->__bufsize = 0;
+
+  return result;
+}
+
+
+/* Pads string with given number of a specified character.
+   This code is taken from iopadn.c of the GNU I/O library.  */
+#define PADSIZE 16
+static const char blanks[PADSIZE] =
+{' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '};
+static const char zeroes[PADSIZE] =
+{'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'};
+
+ssize_t
+__printf_pad (s, pad, count)
+     FILE *s;
+     char pad;
+     size_t count;
+{
+  const char *padptr;
+  register size_t i;
+
+  padptr = pad == ' ' ? blanks : zeroes;
+
+  for (i = count; i >= PADSIZE; i -= PADSIZE)
+    if (PUT (s, padptr, PADSIZE) != PADSIZE)
+      return -1;
+  if (i > 0)
+    if (PUT (s, padptr, i) != i)
+      return -1;
+
+  return count;
+}
+#undef PADSIZE
+#endif /* USE_IN_LIBIO */