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Consider any character above 0x7f to be invalid in a DOS short name.

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This commit is contained in:
Alexandre Julliard 2005-02-09 13:32:12 +00:00
parent 69431706e5
commit c8c9337aa0
1 changed files with 10 additions and 3 deletions
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13
dlls/ntdll/directory.c
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@ -145,6 +145,14 @@ static CRITICAL_SECTION_DEBUG critsect_debug =
static CRITICAL_SECTION dir_section = { &critsect_debug, -1, 0, 0, 0, 0 };
/* check if a given Unicode char is OK in a DOS short name */
static inline BOOL is_invalid_dos_char( WCHAR ch )
{
static const WCHAR invalid_chars[] = { INVALID_DOS_CHARS,'~','.',0 };
if (ch > 0x7f) return TRUE;
return strchrW( invalid_chars, ch ) != NULL;
}
/***********************************************************************
* get_default_com_device
*
@ -402,7 +410,6 @@ BOOL DIR_is_hidden_file( const UNICODE_STRING *name )
*/
static ULONG hash_short_file_name( const UNICODE_STRING *name, LPWSTR buffer )
{
static const WCHAR invalid_chars[] = { INVALID_DOS_CHARS,'~','.',0 };
static const char hash_chars[32] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345";
LPCWSTR p, ext, end = name->Buffer + name->Length / sizeof(WCHAR);
@ -433,7 +440,7 @@ static ULONG hash_short_file_name( const UNICODE_STRING *name, LPWSTR buffer )
for (i = 4, p = name->Buffer, dst = buffer; i > 0; i--, p++)
{
if (p == end || p == ext) break;
*dst++ = strchrW( invalid_chars, *p ) ? '_' : toupperW(*p);
*dst++ = is_invalid_dos_char(*p) ? '_' : toupperW(*p);
}
/* Pad to 5 chars with '~' */
while (i-- >= 0) *dst++ = '~';
@ -448,7 +455,7 @@ static ULONG hash_short_file_name( const UNICODE_STRING *name, LPWSTR buffer )
{
*dst++ = '.';
for (i = 3, ext++; (i > 0) && ext < end; i--, ext++)
*dst++ = strchrW( invalid_chars, *ext ) ? '_' : toupperW(*ext);
*dst++ = is_invalid_dos_char(*ext) ? '_' : toupperW(*ext);
}
return dst - buffer;
}