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libutil: copy suffix_number() from com32/lib/syslinux/load_linux.c
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/* ----------------------------------------------------------------------- * | ||
* | ||
* Copyright 2007-2008 H. Peter Anvin - All Rights Reserved | ||
* | ||
* Permission is hereby granted, free of charge, to any person | ||
* obtaining a copy of this software and associated documentation | ||
* files (the "Software"), to deal in the Software without | ||
* restriction, including without limitation the rights to use, | ||
* copy, modify, merge, publish, distribute, sublicense, and/or | ||
* sell copies of the Software, and to permit persons to whom | ||
* the Software is furnished to do so, subject to the following | ||
* conditions: | ||
* | ||
* The above copyright notice and this permission notice shall | ||
* be included in all copies or substantial portions of the Software. | ||
* | ||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES | ||
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | ||
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | ||
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | ||
* OTHER DEALINGS IN THE SOFTWARE. | ||
* | ||
* ----------------------------------------------------------------------- */ | ||
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/* | ||
* suffix_number.h | ||
* | ||
* Definitions used to convert a string of a number with potential SI suffix | ||
* to int-type. | ||
*/ | ||
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#ifndef LIBUTIL_SUFFIX_NUMBER_H | ||
#define LIBUTIL_SUFFIX_NUMBER_H | ||
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unsigned long long suffix_number(const char *); | ||
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#endif /* LIBUTIL_SUFFIX_NUMBER_H */ | ||
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/* ----------------------------------------------------------------------- * | ||
* | ||
* Copyright 2007-2009 H. Peter Anvin - All Rights Reserved | ||
* Copyright 2009 Intel Corporation; author: H. Peter Anvin | ||
* | ||
* Permission is hereby granted, free of charge, to any person | ||
* obtaining a copy of this software and associated documentation | ||
* files (the "Software"), to deal in the Software without | ||
* restriction, including without limitation the rights to use, | ||
* copy, modify, merge, publish, distribute, sublicense, and/or | ||
* sell copies of the Software, and to permit persons to whom | ||
* the Software is furnished to do so, subject to the following | ||
* conditions: | ||
* | ||
* The above copyright notice and this permission notice shall | ||
* be included in all copies or substantial portions of the Software. | ||
* | ||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES | ||
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | ||
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | ||
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | ||
* OTHER DEALINGS IN THE SOFTWARE. | ||
* | ||
* ----------------------------------------------------------------------- */ | ||
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/* | ||
* suffix_number.c | ||
* | ||
* Convert a string of a number with potential SI suffix to int-type | ||
*/ | ||
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#include <stdlib.h> | ||
#include <suffix_number.h> | ||
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/* Get a value with a potential suffix (k/m/g/t/p/e) */ | ||
unsigned long long suffix_number(const char *str) | ||
{ | ||
char *ep; | ||
unsigned long long v; | ||
int shift; | ||
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v = strtoull(str, &ep, 0); | ||
switch (*ep | 0x20) { | ||
case 'k': | ||
shift = 10; | ||
break; | ||
case 'm': | ||
shift = 20; | ||
break; | ||
case 'g': | ||
shift = 30; | ||
break; | ||
case 't': | ||
shift = 40; | ||
break; | ||
case 'p': | ||
shift = 50; | ||
break; | ||
case 'e': | ||
shift = 60; | ||
break; | ||
default: | ||
shift = 0; | ||
break; | ||
} | ||
v <<= shift; | ||
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return v; | ||
} |