/* Decomposed printf argument list.

   Copyright (C) 1999, 2002-2003, 2005-2007, 2009-2020 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 3, 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, see <https://www.gnu.org/licenses/>.  */

/* This file can be parametrized with the following macros:

     ENABLE_UNISTDIO    Set to 1 to enable the unistdio extensions.

     PRINTF_FETCHARGS   Name of the function to be defined.

     STATIC             Set to 'static' to declare the function static.  */

#ifndef PRINTF_FETCHARGS

# include <config.h>

#endif

/* Specification.  */

#ifndef PRINTF_FETCHARGS

# include "printf-args.h"

#endif

#ifdef STATIC

STATIC

#endif

int

PRINTF_FETCHARGS (va_list args, arguments *a)

{

  size_t i;

  argument *ap;

  for (i = 0, ap = &a->arg[0]; i < a->count; i++, ap++)

    switch (ap->type)

      {

      case TYPE_SCHAR:

        ap->a.a_schar = va_arg (args, /*signed char*/ int);

        break;

      case TYPE_UCHAR:

        ap->a.a_uchar = va_arg (args, /*unsigned char*/ int);

        break;

      case TYPE_SHORT:

        ap->a.a_short = va_arg (args, /*short*/ int);

        break;

      case TYPE_USHORT:

        ap->a.a_ushort = va_arg (args, /*unsigned short*/ int);

        break;

      case TYPE_INT:

        ap->a.a_int = va_arg (args, int);

        break;

      case TYPE_UINT:

        ap->a.a_uint = va_arg (args, unsigned int);

        break;

      case TYPE_LONGINT:

        ap->a.a_longint = va_arg (args, long int);

        break;

      case TYPE_ULONGINT:

        ap->a.a_ulongint = va_arg (args, unsigned long int);

        break;

      case TYPE_LONGLONGINT:

        ap->a.a_longlongint = va_arg (args, long long int);

        break;

      case TYPE_ULONGLONGINT:

        ap->a.a_ulonglongint = va_arg (args, unsigned long long int);

        break;

      case TYPE_DOUBLE:

        ap->a.a_double = va_arg (args, double);

        break;

      case TYPE_LONGDOUBLE:

        ap->a.a_longdouble = va_arg (args, long double);

        break;

      case TYPE_CHAR:

        ap->a.a_char = va_arg (args, int);

        break;

#if HAVE_WINT_T

      case TYPE_WIDE_CHAR:

        /* Although ISO C 99 7.24.1.(2) says that wint_t is "unchanged by

           default argument promotions", this is not the case in mingw32,

           where wint_t is 'unsigned short'.  */

        ap->a.a_wide_char =

          (sizeof (wint_t) < sizeof (int)

           ? (wint_t) va_arg (args, int)

           : va_arg (args, wint_t));

        break;

#endif

      case TYPE_STRING:

        ap->a.a_string = va_arg (args, const char *);

        /* A null pointer is an invalid argument for "%s", but in practice

           it occurs quite frequently in printf statements that produce

           debug output.  Use a fallback in this case.  */

        if (ap->a.a_string == NULL)

          ap->a.a_string = "(NULL)";

        break;

#if HAVE_WCHAR_T

      case TYPE_WIDE_STRING:

        ap->a.a_wide_string = va_arg (args, const wchar_t *);

        /* A null pointer is an invalid argument for "%ls", but in practice

           it occurs quite frequently in printf statements that produce

           debug output.  Use a fallback in this case.  */

        if (ap->a.a_wide_string == NULL)

          {

            static const wchar_t wide_null_string[] =

              {

                (wchar_t)'(',

                (wchar_t)'N', (wchar_t)'U', (wchar_t)'L', (wchar_t)'L',

                (wchar_t)')',

                (wchar_t)0

              };

            ap->a.a_wide_string = wide_null_string;

          }

        break;

#endif

      case TYPE_POINTER:

        ap->a.a_pointer = va_arg (args, void *);

        break;

      case TYPE_COUNT_SCHAR_POINTER:

        ap->a.a_count_schar_pointer = va_arg (args, signed char *);

        break;

      case TYPE_COUNT_SHORT_POINTER:

        ap->a.a_count_short_pointer = va_arg (args, short *);

        break;

      case TYPE_COUNT_INT_POINTER:

        ap->a.a_count_int_pointer = va_arg (args, int *);

        break;

      case TYPE_COUNT_LONGINT_POINTER:

        ap->a.a_count_longint_pointer = va_arg (args, long int *);

        break;

      case TYPE_COUNT_LONGLONGINT_POINTER:

        ap->a.a_count_longlongint_pointer = va_arg (args, long long int *);

        break;

#if ENABLE_UNISTDIO

      /* The unistdio extensions.  */

      case TYPE_U8_STRING:

        ap->a.a_u8_string = va_arg (args, const uint8_t *);

        /* A null pointer is an invalid argument for "%U", but in practice

           it occurs quite frequently in printf statements that produce

           debug output.  Use a fallback in this case.  */

        if (ap->a.a_u8_string == NULL)

          {

            static const uint8_t u8_null_string[] =

              { '(', 'N', 'U', 'L', 'L', ')', 0 };

            ap->a.a_u8_string = u8_null_string;

          }

        break;

      case TYPE_U16_STRING:

        ap->a.a_u16_string = va_arg (args, const uint16_t *);

        /* A null pointer is an invalid argument for "%lU", but in practice

           it occurs quite frequently in printf statements that produce

           debug output.  Use a fallback in this case.  */

        if (ap->a.a_u16_string == NULL)

          {

            static const uint16_t u16_null_string[] =

              { '(', 'N', 'U', 'L', 'L', ')', 0 };

            ap->a.a_u16_string = u16_null_string;

          }

        break;

      case TYPE_U32_STRING:

        ap->a.a_u32_string = va_arg (args, const uint32_t *);

        /* A null pointer is an invalid argument for "%llU", but in practice

           it occurs quite frequently in printf statements that produce

           debug output.  Use a fallback in this case.  */

        if (ap->a.a_u32_string == NULL)

          {

            static const uint32_t u32_null_string[] =

              { '(', 'N', 'U', 'L', 'L', ')', 0 };

            ap->a.a_u32_string = u32_null_string;

          }

        break;

#endif

      default:

        /* Unknown type.  */

        return -1;

      }

  return 0;

}