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89 lines
1.9 KiB
C
89 lines
1.9 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Utility routines.
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*
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* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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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 GNU
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* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdlib.h>
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#include <errno.h>
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#include <assert.h>
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#include "libbb.h"
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#ifdef L_safe_strtoi
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int safe_strtoi(char *arg, int* value)
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{
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int error;
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long lvalue = *value;
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error = safe_strtol(arg, &lvalue);
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*value = (int) lvalue;
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return error;
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}
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#endif
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#ifdef L_safe_strtod
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int safe_strtod(char *arg, double* value)
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{
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char *endptr;
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int errno_save = errno;
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assert(arg!=NULL);
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errno = 0;
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*value = strtod(arg, &endptr);
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if (errno != 0 || *endptr!='\0' || endptr==arg) {
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return 1;
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}
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errno = errno_save;
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return 0;
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}
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#endif
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#ifdef L_safe_strtol
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int safe_strtol(char *arg, long* value)
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{
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char *endptr;
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int errno_save = errno;
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assert(arg!=NULL);
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errno = 0;
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*value = strtol(arg, &endptr, 0);
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if (errno != 0 || *endptr!='\0' || endptr==arg) {
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return 1;
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}
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errno = errno_save;
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return 0;
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}
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#endif
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#ifdef L_safe_strtoul
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int safe_strtoul(char *arg, unsigned long* value)
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{
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char *endptr;
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int errno_save = errno;
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assert(arg!=NULL);
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errno = 0;
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*value = strtoul(arg, &endptr, 0);
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if (errno != 0 || *endptr!='\0' || endptr==arg) {
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return 1;
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}
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errno = errno_save;
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return 0;
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}
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#endif
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