newlib/libc/stdio/vsprintf.c

   1 /*
   2  * Copyright (c) 1990 The Regents of the University of California.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms are permitted
   6  * provided that the above copyright notice and this paragraph are
   7  * duplicated in all such forms and that any documentation,
   8  * and/or other materials related to such
   9  * distribution and use acknowledge that the software was developed
  10  * by the University of California, Berkeley.  The name of the
  11  * University may not be used to endorse or promote products derived
  12  * from this software without specific prior written permission.
  13  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  14  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  16  */
  17 /* doc in vfprintf.c */
  18
  19 #if defined(LIBC_SCCS) && !defined(lint)
  20 static char sccsid[] = "%W% (Berkeley) %G%";
  21 #endif /* LIBC_SCCS and not lint */
  22
  23 #include <_ansi.h>
  24 #include <reent.h>
  25 #include <stdio.h>
  26 #include <limits.h>
  27 #include <stdarg.h>
  28
  29 #include "local.h"
  30
  31 #ifndef _REENT_ONLY
  32
  33 int
  34 vsprintf (char *__restrict str,
  35        const char *__restrict fmt,
  36        va_list ap)
  37 {
  38   return _vsprintf_r (_REENT, str, fmt, ap);
  39 }
  40
  41 #ifdef _NANO_FORMATTED_IO
  42 int
  43 vsiprintf (char *, const char *, __VALIST)
  44        _ATTRIBUTE ((__alias__("vsprintf")));
  45 #endif
  46
  47 #endif /* !_REENT_ONLY */
  48
  49 int
  50 _vsprintf_r (struct _reent *ptr,
  51        char *__restrict str,
  52        const char *__restrict fmt,
  53        va_list ap)
  54 {
  55   int ret;
  56   FILE f;
  57
  58   f._flags = __SWR | __SSTR;
  59   f._flags2 = 0;
  60   f._bf._base = f._p = (unsigned char *) str;
  61   f._bf._size = f._w = INT_MAX;
  62   f._file = -1;  /* No file. */
  63   ret = _svfprintf_r (ptr, &f, fmt, ap);
  64   *f._p = 0;
  65   return ret;
  66 }
  67
  68 #ifdef _NANO_FORMATTED_IO
  69 int
  70 _vsiprintf_r (struct _reent *, char *, const char *, __VALIST)
  71        _ATTRIBUTE ((__alias__("_vsprintf_r")));
  72 #endif