1  /* Simple implementation of vsprintf for systems without it.
       2     Highly system-dependent, but should work on most "traditional"
       3     implementations of stdio; newer ones should already have vsprintf.
       4     Written by Per Bothner of Cygnus Support.
       5     Based on libg++'s "form" (written by Doug Lea; dl@rocky.oswego.edu).
       6     Copyright (C) 1991-2023 Free Software Foundation, Inc.
       7  
       8  This file is part of the libiberty library.  This library is free
       9  software; you can redistribute it and/or modify it under the
      10  terms of the GNU General Public License as published by the
      11  Free Software Foundation; either version 2, or (at your option)
      12  any later version.
      13  
      14  This library is distributed in the hope that it will be useful,
      15  but WITHOUT ANY WARRANTY; without even the implied warranty of
      16  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      17  GNU General Public License for more details.
      18  
      19  You should have received a copy of the GNU General Public License
      20  along with GNU CC; see the file COPYING.  If not, write to
      21  the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
      22  
      23  As a special exception, if you link this library with files
      24  compiled with a GNU compiler to produce an executable, this does not cause
      25  the resulting executable to be covered by the GNU General Public License.
      26  This exception does not however invalidate any other reasons why
      27  the executable file might be covered by the GNU General Public License. */
      28  
      29  #include <ansidecl.h>
      30  #include <stdarg.h>
      31  #include <stdio.h>
      32  #undef vsprintf
      33  
      34  #if defined _IOSTRG && defined _IOWRT
      35  
      36  int
      37  vsprintf (char *buf, const char *format, va_list ap)
      38  {
      39    FILE b;
      40    int ret;
      41  #ifdef VMS
      42    b->_flag = _IOWRT|_IOSTRG;
      43    b->_ptr = buf;
      44    b->_cnt = 12000;
      45  #else
      46    b._flag = _IOWRT|_IOSTRG;
      47    b._ptr = buf;
      48    b._cnt = 12000;
      49  #endif
      50    ret = _doprnt(format, ap, &b);
      51    putc('\0', &b);
      52    return ret;
      53  
      54  }
      55  
      56  #endif