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