strtoll.c revision 1.1
1/* $NetBSD: strtoll.c,v 1.1 2009/06/25 13:47:11 agc Exp $ */ 2 3/* 4 * Copyright � 2006 Alistair Crooks. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote 15 * products derived from this software without specific prior written 16 * permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 19 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 24 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30#include "config.h" 31 32#include <sys/types.h> 33 34#include <stdio.h> 35#include <stdlib.h> 36#include <unistd.h> 37 38#include "compat.h" 39 40#ifndef HAVE_STRTOLL 41 42static char *digits = "0123456789abcdefghijklmnopqrstuvwxyz"; 43 44int64_t 45strtoll(const char *ptr, const char **endptr, int base) 46{ 47 const char *cp; 48 int64_t ret; 49 char *dig; 50 int d; 51 52 for (ret = 0, cp = ptr ; *cp && (dig = strchr(digits, *cp)) != NULL && (d = (int)(dig - digits)) < base ; cp++) { 53 ret = (ret * base) + d; 54 } 55 if (endptr != NULL) { 56 *endptr = cp; 57 } 58 return ret; 59} 60#endif /* HAVE_STRTOLL */ 61