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.
18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
31 * Copyright (c) 1991, 1993, 1994
32 * The Regents of the University of California. All rights reserved.
34 * This code is derived from software contributed to Berkeley by
35 * Keith Muller of the University of California, San Diego and Lance
36 * Visser of Convex Computer Corporation.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. Neither the name of the University nor the names of its contributors
47 * may be used to endorse or promote products derived from this software
48 * without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
63 #include <sys/cdefs.h>
64 __FBSDID("$FreeBSD$");
66 #include <sys/types.h>
80 __weak_alias(strsuftoll, _strsuftoll)
81 __weak_alias(strsuftollx, _strsuftollx)
86 * Convert an expression of the following forms to a (u)int64_t.
87 * 1) A positive decimal number.
88 * 2) A positive decimal number followed by a b (mult by 512).
89 * 3) A positive decimal number followed by a k (mult by 1024).
90 * 4) A positive decimal number followed by a m (mult by 1048576).
91 * 5) A positive decimal number followed by a g (mult by 1073741824).
92 * 6) A positive decimal number followed by a t (mult by 1099511627776).
93 * 7) A positive decimal number followed by a w (mult by sizeof int)
94 * 8) Two or more positive decimal numbers (with/without k,b or w).
95 * separated by x (also * for backwards compatibility), specifying
96 * the product of the indicated values.
97 * Returns the result upon successful conversion, or exits with an
103 * As strsuftoll(), but returns the error message into the provided buffer
104 * rather than exiting with it.
108 strsuftollx(const char *desc, const char *val,
109 long long min, long long max, char *ebuf, size_t ebuflen)
117 while (isspace((unsigned char)*val)) /* Skip leading space */
120 num = strtoll(val, &expr, 10);
122 goto erange; /* Overflow */
124 if (expr == val) /* No digits */
130 num *= 512; /* 1 block */
137 num *= 1024; /* 1 kilobyte */
144 num *= 1048576; /* 1 megabyte */
151 num *= 1073741824; /* 1 gigabyte */
158 num *= 1099511627776LL; /* 1 terabyte */
165 num *= sizeof(int); /* 1 word */
175 case '*': /* Backward compatible */
178 num *= strsuftollx(desc, expr + 1, min, max, ebuf, ebuflen);
183 snprintf(ebuf, ebuflen,
184 "%s: %s", desc, strerror(ERANGE));
189 badnum: snprintf(ebuf, ebuflen,
190 "%s `%s': illegal number", desc, val);
195 snprintf(ebuf, ebuflen, "%s %lld is less than %lld.",
196 desc, (long long)num, (long long)min);
201 snprintf(ebuf, ebuflen,
202 "%s %lld is greater than %lld.",
203 desc, (long long)num, (long long)max);
212 strsuftoll(const char *desc, const char *val,
213 long long min, long long max)
218 result = strsuftollx(desc, val, min, max, errbuf, sizeof(errbuf));
220 errx(1, "%s", errbuf);