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68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/*
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* hfsutils - tools for reading and writing Macintosh HFS volumes
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* Copyright (C) 1996-1998 Robert Leslie
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id: strtol.c,v 1.5 1998/04/11 08:27:00 rob Exp $
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*/
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# ifdef HAVE_CONFIG_H
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# include "config.h"
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# endif
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# include <stdlib.h>
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# include <ctype.h>
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/*
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* NAME: strtol()
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* DESCRIPTION: convert a string to a long integer
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*/
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long strtol(const char *nptr, char **endptr, int base)
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{
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long result = 0;
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int negative = 0;
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/* this replacement function optimized for use with hfsutils */
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if (endptr || base)
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abort();
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while (isspace(*nptr))
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++nptr;
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switch (*nptr)
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{
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case '-':
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negative = 1;
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case '+':
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++nptr;
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}
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while (1)
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{
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unsigned digit;
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digit = *nptr++ - '0';
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if (digit > 9)
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break;
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result = 10 * result - digit;
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}
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return negative ? result : -result;
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}
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