1 /* $NetBSD: strsuftoll.c,v 1.6 2004/03/05 05:58:29 lukem Exp $ */
3 * SPDX-License-Identifier: BSD-2-Clause-NetBSD
5 * Copyright (c) 2001-2002,2004 The NetBSD Foundation, Inc.
8 * This code is derived from software contributed to The NetBSD Foundation
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
33 * Copyright (c) 1991, 1993, 1994
34 * The Regents of the University of California. All rights reserved.
36 * This code is derived from software contributed to Berkeley by
37 * Keith Muller of the University of California, San Diego and Lance
38 * Visser of Convex Computer Corporation.
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
43 * 1. Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * 2. Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in the
47 * documentation and/or other materials provided with the distribution.
48 * 3. Neither the name of the University nor the names of its contributors
49 * may be used to endorse or promote products derived from this software
50 * without specific prior written permission.
52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
65 #include <sys/cdefs.h>
66 __FBSDID("$FreeBSD$");
68 #include <sys/types.h>
82 __weak_alias(strsuftoll, _strsuftoll)
83 __weak_alias(strsuftollx, _strsuftollx)
88 * Convert an expression of the following forms to a (u)int64_t.
89 * 1) A positive decimal number.
90 * 2) A positive decimal number followed by a b (mult by 512).
91 * 3) A positive decimal number followed by a k (mult by 1024).
92 * 4) A positive decimal number followed by a m (mult by 1048576).
93 * 5) A positive decimal number followed by a g (mult by 1073741824).
94 * 6) A positive decimal number followed by a t (mult by 1099511627776).
95 * 7) A positive decimal number followed by a w (mult by sizeof int)
96 * 8) Two or more positive decimal numbers (with/without k,b or w).
97 * separated by x (also * for backwards compatibility), specifying
98 * the product of the indicated values.
99 * Returns the result upon successful conversion, or exits with an
105 * As strsuftoll(), but returns the error message into the provided buffer
106 * rather than exiting with it.
110 strsuftollx(const char *desc, const char *val,
111 long long min, long long max, char *ebuf, size_t ebuflen)
119 while (isspace((unsigned char)*val)) /* Skip leading space */
122 num = strtoll(val, &expr, 10);
124 goto erange; /* Overflow */
126 if (expr == val) /* No digits */
132 num *= 512; /* 1 block */
139 num *= 1024; /* 1 kilobyte */
146 num *= 1048576; /* 1 megabyte */
153 num *= 1073741824; /* 1 gigabyte */
160 num *= 1099511627776LL; /* 1 terabyte */
167 num *= sizeof(int); /* 1 word */
177 case '*': /* Backward compatible */
180 num *= strsuftollx(desc, expr + 1, min, max, ebuf, ebuflen);
185 snprintf(ebuf, ebuflen,
186 "%s: %s", desc, strerror(ERANGE));
191 badnum: snprintf(ebuf, ebuflen,
192 "%s `%s': illegal number", desc, val);
197 snprintf(ebuf, ebuflen, "%s %lld is less than %lld.",
198 desc, (long long)num, (long long)min);
203 snprintf(ebuf, ebuflen,
204 "%s %lld is greater than %lld.",
205 desc, (long long)num, (long long)max);
214 strsuftoll(const char *desc, const char *val,
215 long long min, long long max)
220 result = strsuftollx(desc, val, min, max, errbuf, sizeof(errbuf));
222 errx(1, "%s", errbuf);