5e53a4f90f
Mainly focus on files that use BSD 2-Clause license, however the tool I was using mis-identified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
225 lines
6.7 KiB
C
225 lines
6.7 KiB
C
/* $NetBSD: strsuftoll.c,v 1.6 2004/03/05 05:58:29 lukem Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-NetBSD
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*
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* Copyright (c) 2001-2002,2004 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Luke Mewburn.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Keith Muller of the University of California, San Diego and Lance
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* Visser of Convex Computer Corporation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/time.h>
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#include <assert.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef _LIBC
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# ifdef __weak_alias
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__weak_alias(strsuftoll, _strsuftoll)
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__weak_alias(strsuftollx, _strsuftollx)
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# endif
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#endif /* LIBC */
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/*
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* Convert an expression of the following forms to a (u)int64_t.
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* 1) A positive decimal number.
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* 2) A positive decimal number followed by a b (mult by 512).
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* 3) A positive decimal number followed by a k (mult by 1024).
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* 4) A positive decimal number followed by a m (mult by 1048576).
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* 5) A positive decimal number followed by a g (mult by 1073741824).
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* 6) A positive decimal number followed by a t (mult by 1099511627776).
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* 7) A positive decimal number followed by a w (mult by sizeof int)
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* 8) Two or more positive decimal numbers (with/without k,b or w).
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* separated by x (also * for backwards compatibility), specifying
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* the product of the indicated values.
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* Returns the result upon successful conversion, or exits with an
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* appropriate error.
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*
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*/
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/*
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* As strsuftoll(), but returns the error message into the provided buffer
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* rather than exiting with it.
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*/
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/* LONGLONG */
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long long
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strsuftollx(const char *desc, const char *val,
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long long min, long long max, char *ebuf, size_t ebuflen)
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{
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long long num, t;
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char *expr;
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errno = 0;
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ebuf[0] = '\0';
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while (isspace((unsigned char)*val)) /* Skip leading space */
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val++;
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num = strtoll(val, &expr, 10);
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if (errno == ERANGE)
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goto erange; /* Overflow */
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if (expr == val) /* No digits */
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goto badnum;
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switch (*expr) {
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case 'b':
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t = num;
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num *= 512; /* 1 block */
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if (t > num)
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goto erange;
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++expr;
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break;
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case 'k':
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t = num;
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num *= 1024; /* 1 kilobyte */
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if (t > num)
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goto erange;
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++expr;
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break;
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case 'm':
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t = num;
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num *= 1048576; /* 1 megabyte */
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if (t > num)
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goto erange;
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++expr;
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break;
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case 'g':
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t = num;
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num *= 1073741824; /* 1 gigabyte */
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if (t > num)
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goto erange;
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++expr;
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break;
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case 't':
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t = num;
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num *= 1099511627776LL; /* 1 terabyte */
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if (t > num)
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goto erange;
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++expr;
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break;
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case 'w':
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t = num;
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num *= sizeof(int); /* 1 word */
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if (t > num)
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goto erange;
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++expr;
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break;
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}
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switch (*expr) {
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case '\0':
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break;
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case '*': /* Backward compatible */
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case 'x':
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t = num;
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num *= strsuftollx(desc, expr + 1, min, max, ebuf, ebuflen);
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if (*ebuf != '\0')
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return (0);
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if (t > num) {
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erange:
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snprintf(ebuf, ebuflen,
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"%s: %s", desc, strerror(ERANGE));
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return (0);
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}
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break;
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default:
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badnum: snprintf(ebuf, ebuflen,
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"%s `%s': illegal number", desc, val);
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return (0);
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}
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if (num < min) {
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/* LONGLONG */
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snprintf(ebuf, ebuflen, "%s %lld is less than %lld.",
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desc, (long long)num, (long long)min);
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return (0);
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}
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if (num > max) {
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/* LONGLONG */
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snprintf(ebuf, ebuflen,
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"%s %lld is greater than %lld.",
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desc, (long long)num, (long long)max);
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return (0);
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}
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*ebuf = '\0';
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return (num);
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}
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/* LONGLONG */
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long long
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strsuftoll(const char *desc, const char *val,
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long long min, long long max)
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{
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long long result;
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char errbuf[100];
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result = strsuftollx(desc, val, min, max, errbuf, sizeof(errbuf));
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if (*errbuf != '\0')
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errx(1, "%s", errbuf);
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return (result);
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}
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