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      1  1.2  christos /*	$NetBSD: atoi.c,v 1.2 2019/03/31 20:08:45 christos Exp $	*/
      2  1.1     isaki 
      3  1.1     isaki /*-
      4  1.1     isaki  * Copyright (c) 2008 The NetBSD Foundation, Inc.
      5  1.1     isaki  * All rights reserved.
      6  1.1     isaki  *
      7  1.1     isaki  * Redistribution and use in source and binary forms, with or without
      8  1.1     isaki  * modification, are permitted provided that the following conditions
      9  1.1     isaki  * are met:
     10  1.1     isaki  * 1. Redistributions of source code must retain the above copyright
     11  1.1     isaki  *    notice, this list of conditions and the following disclaimer.
     12  1.1     isaki  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1     isaki  *    notice, this list of conditions and the following disclaimer in the
     14  1.1     isaki  *    documentation and/or other materials provided with the distribution.
     15  1.1     isaki  *
     16  1.1     isaki  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  1.1     isaki  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  1.1     isaki  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  1.1     isaki  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  1.1     isaki  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  1.1     isaki  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  1.1     isaki  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  1.1     isaki  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  1.1     isaki  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  1.1     isaki  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  1.1     isaki  * POSSIBILITY OF SUCH DAMAGE.
     27  1.1     isaki  */
     28  1.1     isaki 
     29  1.1     isaki #include <sys/types.h>
     30  1.1     isaki #include <sys/reboot.h>
     31  1.1     isaki 
     32  1.1     isaki #include <lib/libsa/stand.h>
     33  1.1     isaki #include <lib/libkern/libkern.h>
     34  1.1     isaki 
     35  1.1     isaki int
     36  1.1     isaki atoi(const char *in)
     37  1.1     isaki {
     38  1.1     isaki 	char *c;
     39  1.1     isaki 	int ret;
     40  1.1     isaki 
     41  1.1     isaki 	ret = 0;
     42  1.2  christos 	c = __UNCONST(in);
     43  1.1     isaki 	if (*c == '-')
     44  1.1     isaki 		c++;
     45  1.1     isaki 	for (; isdigit(*c); c++)
     46  1.1     isaki 		ret = (ret * 10) + (*c - '0');
     47  1.1     isaki 
     48  1.1     isaki 	return (*in == '-') ? -ret : ret;
     49  1.1     isaki }
     50