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dcwrapper.c

/*  Sarien - A Sierra AGI resource interpreter engine
 *  Copyright (C) 1999-2001 Stuart George and Claudio Matsuoka
 *  Dreamcast files Copyright (C) 2002 Brian Peek/Ganksoft Entertainment
 *  
 *  $Id: dcwrapper.c,v 1.1 2002/03/09 00:54:23 peekb Exp $
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; see docs/COPYING for further details.
 */

#include <kos.h>

int mkdir(const char *str)
{
      return 0;
}

/*
 * Copyright (c) 1990 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by the University of
 *    California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include  <limits.h>

/*
 * Convert a string to an unsigned long integer.
 *
 * Ignores `locale' stuff.  Assumes that the upper and lower case
 * alphabets and digits are each contiguous.
 */
/*  */
/* strtoul */
unsigned long
strtoul(nptr, endptr, base)
      const char *nptr;
      char **endptr;
      register int base;
{
      register const char *s;
      register unsigned long acc, cutoff;
      register int c;
      register int neg, any, cutlim;

      /*
       * See strtol for comments as to the logic used.
       */
      s = nptr;
      do {
            c = (unsigned char) *s++;
      } while (isspace(c));
      if (c == '-') {
            neg = 1;
            c = *s++;
      } else {
            neg = 0;
            if (c == '+')
                  c = *s++;
      }
      if ((base == 0 || base == 16) &&
          c == '0' && (*s == 'x' || *s == 'X')) {
            c = s[1];
            s += 2;
            base = 16;
      }
      if (base == 0)
            base = c == '0' ? 8 : 10;

      cutoff = ULONG_MAX / (unsigned long)base;
      cutlim = ULONG_MAX % (unsigned long)base;
      for (acc = 0, any = 0;; c = (unsigned char) *s++) {
            if (isdigit(c))
                  c -= '0';
            else if (isalpha(c))
                  c -= isupper(c) ? 'A' - 10 : 'a' - 10;
            else
                  break;
            if (c >= base)
                  break;
            if (any < 0)
                  continue;
            if (acc > cutoff || acc == cutoff && c > cutlim) {
                  any = -1;
                  acc = ULONG_MAX;
            } else {
                  any = 1;
                  acc *= (unsigned long)base;
                  acc += c;
            }
      }
      if (neg && any > 0)
            acc = -acc;
      if (endptr != 0)
            *endptr = (char *) (any ? s - 1 : nptr);
      return (acc);
}

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