newlib/libc/stdio/vsscanf.c

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