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