6bea876644
set of NetBSD software to compile as part of the FreeBSD build with little or no modifiction. It is built as a static library and not installed for general use. Likewise, its header files are not installed. Sponsored by: DARPA, AFRL
223 lines
6.6 KiB
C
223 lines
6.6 KiB
C
/* $NetBSD: strsuftoll.c,v 1.6 2004/03/05 05:58:29 lukem Exp $ */
|
|
/*-
|
|
* Copyright (c) 2001-2002,2004 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Luke Mewburn.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
/*-
|
|
* Copyright (c) 1991, 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Keith Muller of the University of California, San Diego and Lance
|
|
* Visser of Convex Computer Corporation.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
|
|
#include <assert.h>
|
|
#include <ctype.h>
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#ifdef _LIBC
|
|
# ifdef __weak_alias
|
|
__weak_alias(strsuftoll, _strsuftoll)
|
|
__weak_alias(strsuftollx, _strsuftollx)
|
|
# endif
|
|
#endif /* LIBC */
|
|
|
|
/*
|
|
* Convert an expression of the following forms to a (u)int64_t.
|
|
* 1) A positive decimal number.
|
|
* 2) A positive decimal number followed by a b (mult by 512).
|
|
* 3) A positive decimal number followed by a k (mult by 1024).
|
|
* 4) A positive decimal number followed by a m (mult by 1048576).
|
|
* 5) A positive decimal number followed by a g (mult by 1073741824).
|
|
* 6) A positive decimal number followed by a t (mult by 1099511627776).
|
|
* 7) A positive decimal number followed by a w (mult by sizeof int)
|
|
* 8) Two or more positive decimal numbers (with/without k,b or w).
|
|
* separated by x (also * for backwards compatibility), specifying
|
|
* the product of the indicated values.
|
|
* Returns the result upon successful conversion, or exits with an
|
|
* appropriate error.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* As strsuftoll(), but returns the error message into the provided buffer
|
|
* rather than exiting with it.
|
|
*/
|
|
/* LONGLONG */
|
|
long long
|
|
strsuftollx(const char *desc, const char *val,
|
|
long long min, long long max, char *ebuf, size_t ebuflen)
|
|
{
|
|
long long num, t;
|
|
char *expr;
|
|
|
|
errno = 0;
|
|
ebuf[0] = '\0';
|
|
|
|
while (isspace((unsigned char)*val)) /* Skip leading space */
|
|
val++;
|
|
|
|
num = strtoll(val, &expr, 10);
|
|
if (errno == ERANGE)
|
|
goto erange; /* Overflow */
|
|
|
|
if (expr == val) /* No digits */
|
|
goto badnum;
|
|
|
|
switch (*expr) {
|
|
case 'b':
|
|
t = num;
|
|
num *= 512; /* 1 block */
|
|
if (t > num)
|
|
goto erange;
|
|
++expr;
|
|
break;
|
|
case 'k':
|
|
t = num;
|
|
num *= 1024; /* 1 kilobyte */
|
|
if (t > num)
|
|
goto erange;
|
|
++expr;
|
|
break;
|
|
case 'm':
|
|
t = num;
|
|
num *= 1048576; /* 1 megabyte */
|
|
if (t > num)
|
|
goto erange;
|
|
++expr;
|
|
break;
|
|
case 'g':
|
|
t = num;
|
|
num *= 1073741824; /* 1 gigabyte */
|
|
if (t > num)
|
|
goto erange;
|
|
++expr;
|
|
break;
|
|
case 't':
|
|
t = num;
|
|
num *= 1099511627776LL; /* 1 terabyte */
|
|
if (t > num)
|
|
goto erange;
|
|
++expr;
|
|
break;
|
|
case 'w':
|
|
t = num;
|
|
num *= sizeof(int); /* 1 word */
|
|
if (t > num)
|
|
goto erange;
|
|
++expr;
|
|
break;
|
|
}
|
|
|
|
switch (*expr) {
|
|
case '\0':
|
|
break;
|
|
case '*': /* Backward compatible */
|
|
case 'x':
|
|
t = num;
|
|
num *= strsuftollx(desc, expr + 1, min, max, ebuf, ebuflen);
|
|
if (*ebuf != '\0')
|
|
return (0);
|
|
if (t > num) {
|
|
erange:
|
|
snprintf(ebuf, ebuflen,
|
|
"%s: %s", desc, strerror(ERANGE));
|
|
return (0);
|
|
}
|
|
break;
|
|
default:
|
|
badnum: snprintf(ebuf, ebuflen,
|
|
"%s `%s': illegal number", desc, val);
|
|
return (0);
|
|
}
|
|
if (num < min) {
|
|
/* LONGLONG */
|
|
snprintf(ebuf, ebuflen, "%s %lld is less than %lld.",
|
|
desc, (long long)num, (long long)min);
|
|
return (0);
|
|
}
|
|
if (num > max) {
|
|
/* LONGLONG */
|
|
snprintf(ebuf, ebuflen,
|
|
"%s %lld is greater than %lld.",
|
|
desc, (long long)num, (long long)max);
|
|
return (0);
|
|
}
|
|
*ebuf = '\0';
|
|
return (num);
|
|
}
|
|
|
|
/* LONGLONG */
|
|
long long
|
|
strsuftoll(const char *desc, const char *val,
|
|
long long min, long long max)
|
|
{
|
|
long long result;
|
|
char errbuf[100];
|
|
|
|
result = strsuftollx(desc, val, min, max, errbuf, sizeof(errbuf));
|
|
if (*errbuf != '\0')
|
|
errx(1, "%s", errbuf);
|
|
return (result);
|
|
}
|