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/* Like vsprintf but provides a pointer to malloc'd storage, which must

   be freed by the caller.

   Copyright (C) 1994, 2003, 2011, 2013 Free Software Foundation, Inc.

This file is part of the libiberty library.

Libiberty 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.

Libiberty 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 libiberty; see the file COPYING.LIB.  If not, write

to the Free Software Foundation, Inc., 51 Franklin Street - Fifth

Floor, Boston, MA 02110-1301, USA.  */

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include 

#include 

#if !defined (va_copy) && defined (__va_copy)

# define va_copy(d,s)  __va_copy((d),(s))

#endif

#include 

#ifdef HAVE_STRING_H

#include 

#endif

#ifdef HAVE_STDLIB_H

#include 

#else

extern PTR malloc ();

#endif

#include "libiberty.h"

#include "vprintf-support.h"

#ifdef TEST

int global_total_width;

#endif

/*

@deftypefn Extension int vasprintf (char **@var{resptr}, @

  const char *@var{format}, va_list @var{args})

Like @code{vsprintf}, but instead of passing a pointer to a buffer,

you pass a pointer to a pointer.  This function will compute the size

of the buffer needed, allocate memory with @code{malloc}, and store a

pointer to the allocated memory in @code{*@var{resptr}}.  The value

returned is the same as @code{vsprintf} would return.  If memory could

not be allocated, minus one is returned and @code{NULL} is stored in

@code{*@var{resptr}}.

@end deftypefn

*/

static int int_vasprintf (char **, const char *, va_list);

static int

int_vasprintf (char **result, const char *format, va_list args)

{

  int total_width = libiberty_vprintf_buffer_size (format, args);

#ifdef TEST

  global_total_width = total_width;

#endif

  *result = (char *) malloc (total_width);

  if (*result != NULL)

    return vsprintf (*result, format, args);

  else

    return -1;

}

int

vasprintf (char **result, const char *format,

#if defined (_BSD_VA_LIST_) && defined (__FreeBSD__)

           _BSD_VA_LIST_ args)

#else

           va_list args)

#endif

{

  return int_vasprintf (result, format, args);

}

#ifdef TEST

static void ATTRIBUTE_PRINTF_1

checkit (const char *format, ...)

{

  char *result;

  va_list args;

  va_start (args, format);

  vasprintf (&result, format, args);

  va_end (args);

  if (strlen (result) < (size_t) global_total_width)

    printf ("PASS: ");

  else

    printf ("FAIL: ");

  printf ("%d %s\n", global_total_width, result);

  free (result);

}

extern int main (void);

int

main (void)

{

  checkit ("%d", 0x12345678);

  checkit ("%200d", 5);

  checkit ("%.300d", 6);

  checkit ("%100.150d", 7);

  checkit ("%s", "jjjjjjjjjiiiiiiiiiiiiiiioooooooooooooooooppppppppppppaa\n\

777777777777777777333333333333366666666666622222222222777777777777733333");

  checkit ("%f%s%d%s", 1.0, "foo", 77, "asdjffffffffffffffiiiiiiiiiiixxxxx");

  return 0;

}

#endif /* TEST */