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strtoull: Fix behaviour on chars between '9' and 'a'.

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Reported by: Aaron Miller <aaronmiller@fb.com>
This commit is contained in:
Vladimir Serbinenko 2016-08-10 17:49:42 +02:00
parent ede6c96893
commit dc6e1b5af8
2 changed files with 18 additions and 8 deletions
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13
grub-core/kern/misc.c
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@ -391,12 +391,13 @@ grub_strtoull (const char *str, char **end, int base)
unsigned long digit;
digit = grub_tolower (*str) - '0';
if (digit > 9)
{
digit += '0' - 'a' + 10;
if (digit >= (unsigned long) base)
break;
}
if (digit >= 'a' - '0')
digit += '0' - 'a' + 10;
else if (digit > 9)
break;
if (digit >= (unsigned long) base)
break;
found = 1;