/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include <shadow.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>


#define MAX(a, b) ((a) > (b) ? (a) : (b))

/* Read one shadow entry from the given stream.  */
struct spwd *
sgetspent (const char *string)
{
  static struct spwd resbuf;
  static int max_size = 0;
  static char *buffer = NULL;
  struct spwd *result;
  int len;

  len = strlen (string) + 1;
  if (len > max_size)
    {
      max_size = MAX (128, len + 32);
      buffer = realloc (buffer, max_size);
      if (buffer == NULL)
	return NULL;
    }

  return __sgetspent_r (string, &resbuf, buffer, max_size, &result)
    ? NULL : result;
}
