libiberty/asprintf.c

   1 /* Like sprintf but provides a pointer to malloc'd storage, which must
   2    be freed by the caller.
   3    Copyright (C) 1997 Free Software Foundation, Inc.
   4    Contributed by Cygnus Solutions.
   5
   6 This file is part of the libiberty library.
   7 Libiberty is free software; you can redistribute it and/or
   8 modify it under the terms of the GNU Library General Public
   9 License as published by the Free Software Foundation; either
  10 version 2 of the License, or (at your option) any later version.
  11
  12 Libiberty is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 Library General Public License for more details.
  16
  17 You should have received a copy of the GNU Library General Public
  18 License along with libiberty; see the file COPYING.LIB.  If
  19 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 #include "ansidecl.h"
  23 #include "libiberty.h"
  24
  25 #if defined (ANSI_PROTOTYPES) || defined (ALMOST_STDC)
  26 #define USE_STDARG
  27 #endif
  28
  29 #ifdef USE_STDARG
  30 #include <stdarg.h>
  31 #else
  32 #include <varargs.h>
  33 #endif
  34
  35 /* VARARGS */
  36 #ifdef USE_STDARG
  37 int
  38 asprintf (char **buf, const char *fmt, ...)
  39 #else
  40 int
  41 asprintf (buf, fmt, va_alist)
  42      char **buf;
  43      const char *fmt;
  44      va_dcl
  45 #endif
  46 {
  47   int status;
  48   va_list ap;
  49 #ifdef USE_STDARG
  50   va_start (ap, fmt);
  51 #else
  52   va_start (ap);
  53 #endif
  54   status = vasprintf (buf, fmt, ap);
  55   va_end (ap);
  56   return status;
  57 }