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advapi32: Fix buffer overrun in tests/registry.c:wine_debugstr_wn().

This commit is contained in:
Dan Kegel 2007-11-11 06:33:03 -08:00 committed by Alexandre Julliard
parent 6c8ed9efbe
commit 89b9af7714
1 changed files with 4 additions and 5 deletions
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9
dlls/advapi32/tests/registry.c
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@ -56,7 +56,6 @@ static char *get_temp_buffer( int size )
return ret;
}
/* default implementation of wine_dbgstr_an */
static const char *wine_debugstr_an( const char *str, int n )
{
static const char hex[16] = "0123456789abcdef";
@ -108,10 +107,10 @@ static const char *wine_debugstr_an( const char *str, int n )
return res;
}
/* default implementation of wine_dbgstr_wn */
static const char *wine_debugstr_wn( const WCHAR *str, int n )
{
char *dst, *res;
size_t size;
if (!HIWORD(str))
{
@ -122,11 +121,11 @@ static const char *wine_debugstr_wn( const WCHAR *str, int n )
}
if (n == -1) n = lstrlenW(str);
if (n < 0) n = 0;
else if (n > 200) n = 200;
size = 12 + min( 300, n * 5);
dst = res = get_temp_buffer( n * 5 + 7 );
*dst++ = 'L';
*dst++ = '"';
while (n-- > 0)
while (n-- > 0 && dst <= res + size - 10)
{
WCHAR c = *str++;
switch (c)
@ -148,7 +147,7 @@ static const char *wine_debugstr_wn( const WCHAR *str, int n )
}
}
*dst++ = '"';
if (*str)
if (n > 0)
{
*dst++ = '.';
*dst++ = '.';