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fixed a problem possible overwrite memory in cmd. base on knowlges from bug 2017. the patch are incorrect to fix it.

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we simple do not allown overwrite the memory. both on trunk and 0.3.1

  
See issue #2017 for more details.

svn path=/trunk/; revision=25719
This commit is contained in:
Magnus Olsen 2007-02-04 18:19:34 +00:00
parent 2dcc044532
commit ca4c9d46fc
1 changed files with 5 additions and 0 deletions
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5
reactos/base/shell/cmd/cmd.c
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@ -187,6 +187,9 @@ ConvertULargeInteger (ULARGE_INTEGER num, LPTSTR des, INT len, BOOL bPutSeperato
INT c = 0;
INT n = 0;
if (len <= 1)
return 0;
if (num.QuadPart == 0)
{
des[0] = _T('0');
@ -203,6 +206,8 @@ ConvertULargeInteger (ULARGE_INTEGER num, LPTSTR des, INT len, BOOL bPutSeperato
temp[30 - c++] = (TCHAR)(num.QuadPart % 10) + _T('0');
num.QuadPart /= 10;
}
if (c>len)
c=len;
for (n = 0; n <= c; n++)
des[n] = temp[31 - c + n];