1  /* Copyright (C) 1991-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  /* This file defines one of the deprecated scanf variants.  */
      19  #include <features.h>
      20  #undef __GLIBC_USE_DEPRECATED_SCANF
      21  #define __GLIBC_USE_DEPRECATED_SCANF 1
      22  
      23  #include <stdarg.h>
      24  #include <libio/strfile.h>
      25  
      26  /* Read formatted input from S, according to the format string FORMAT.  */
      27  
      28  int
      29  __sscanf (const char *s, const char *format, ...)
      30  {
      31    va_list arg;
      32    int done;
      33    _IO_strfile sf;
      34    FILE *f = _IO_strfile_read (&sf, s);
      35  
      36    va_start (arg, format);
      37    done = __vfscanf_internal (f, format, arg, 0);
      38    va_end (arg);
      39  
      40    return done;
      41  }
      42  ldbl_strong_alias (__sscanf, sscanf)
      43  ldbl_strong_alias (__sscanf, _IO_sscanf)